/* roulang page: index */
:root {
            --color-primary: #15171C;
            --color-accent: #C8FF3E;
            --color-warning: #FF6A1A;
            --color-bg: #F6F5F1;
            --color-surface: #FFFFFF;
            --color-text: #16181D;
            --color-text-muted: #555B66;
            --color-border: #E6E4DE;
            --color-dark-bg: #0F1115;
            --color-error: #E5484D;
            --radius-card: 20px;
            --radius-button: 999px;
            --radius-small: 12px;
            --shadow-light: 0 1px 2px rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.06), 0 20px 40px rgba(0, 0, 0, 0.07);
            --transition-fast: 0.2s ease-out;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1240px;
            --font-sans: 'HarmonyOS Sans SC', 'Alibaba PuHuiTi', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-display: 'Space Grotesk', 'Inter', 'HarmonyOS Sans SC', 'Noto Sans SC', sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast), opacity var(--transition-fast);
        }

        a:hover {
            color: var(--color-accent);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 88px 0;
            position: relative;
        }

        .section--dark {
            background-color: var(--color-dark-bg);
            color: #F6F5F1;
        }

        .section--dark .section-title,
        .section--dark .section-desc {
            color: #F6F5F1;
        }

        .section--dark .section-desc {
            color: #B8BCC4;
        }

        .section-title {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: var(--color-text);
        }

        .section-desc {
            font-size: 17px;
            line-height: 1.8;
            color: var(--color-text-muted);
            max-width: 720px;
            margin-bottom: 48px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1.5px;
            color: var(--color-warning);
            text-transform: uppercase;
            margin-bottom: 16px;
        }

        .section-tag::before {
            content: '';
            width: 24px;
            height: 2px;
            background-color: var(--color-warning);
            border-radius: 2px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 28px;
            border-radius: var(--radius-button);
            font-size: 15px;
            font-weight: 700;
            letter-spacing: 0.3px;
            transition: all var(--transition-fast);
            border: 2px solid transparent;
            white-space: nowrap;
            min-height: 52px;
        }

        .btn-primary {
            background-color: var(--color-accent);
            color: var(--color-primary);
            border-color: var(--color-accent);
        }

        .btn-primary:hover {
            background-color: var(--color-warning);
            border-color: var(--color-warning);
            color: var(--color-primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 255, 62, 0.25);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--color-primary);
            border-color: var(--color-border);
        }

        .btn-secondary:hover {
            border-color: var(--color-accent);
            color: var(--color-primary);
            background-color: rgba(200, 255, 62, 0.08);
        }

        .btn-dark {
            background-color: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }

        .btn-dark:hover {
            background-color: #2A2D35;
            border-color: #2A2D35;
            color: var(--color-accent);
        }

        .btn-outline-light {
            background-color: transparent;
            color: #F6F5F1;
            border-color: rgba(255, 255, 255, 0.3);
        }

        .btn-outline-light:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background-color: rgba(200, 255, 62, 0.08);
        }

        .btn-sm {
            padding: 10px 20px;
            min-height: 42px;
            font-size: 14px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.5px;
            line-height: 1.6;
        }

        .badge-accent {
            background-color: rgba(200, 255, 62, 0.15);
            color: #5C7A00;
            border: 1px solid rgba(200, 255, 62, 0.4);
        }

        .badge-warning {
            background-color: rgba(255, 106, 26, 0.12);
            color: #C44D00;
            border: 1px solid rgba(255, 106, 26, 0.3);
        }

        .badge-dark {
            background-color: rgba(21, 23, 28, 0.08);
            color: var(--color-primary);
            border: 1px solid rgba(21, 23, 28, 0.15);
        }

        .card {
            background-color: var(--color-surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-light);
            transition: all var(--transition-smooth);
            overflow: hidden;
        }

        .card:hover {
            transform: translateY(-6px);
            border-color: var(--color-accent);
            box-shadow: var(--shadow-hover);
        }

        .card .card-content {
            padding: 24px 28px;
        }

        .card .card-content h3 {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 10px;
            color: var(--color-text);
        }

        .card .card-content p {
            font-size: 15px;
            line-height: 1.7;
            color: var(--color-text-muted);
        }

        .card-cover {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-smooth);
        }

        .card:hover .card-cover {
            transform: scale(1.03);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(200, 255, 62, 0.5);
            outline-offset: 2px;
            border-radius: 8px;
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 0 24px;
            pointer-events: none;
        }

        .nav-capsule {
            max-width: var(--container-max);
            margin: 0 auto;
            background: rgba(15, 17, 21, 0.78);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 999px;
            padding: 8px 10px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            pointer-events: auto;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.18);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 800;
            color: #F6F5F1;
            letter-spacing: -0.3px;
            padding-left: 12px;
            white-space: nowrap;
        }

        .nav-logo .logo-dot {
            width: 10px;
            height: 10px;
            background-color: var(--color-accent);
            border-radius: 50%;
            display: inline-block;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-links::-webkit-scrollbar {
            display: none;
        }

        .nav-links a {
            color: rgba(255, 255, 255, 0.8);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: 999px;
            white-space: nowrap;
            transition: all var(--transition-fast);
            position: relative;
        }

        .nav-links a:hover {
            color: var(--color-accent);
            background: rgba(200, 255, 62, 0.08);
        }

        .nav-links a.active {
            color: var(--color-accent);
            font-weight: 700;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 16px;
            height: 3px;
            background-color: var(--color-accent);
            border-radius: 3px;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            padding-right: 6px;
            flex-shrink: 0;
        }

        .nav-cta .btn {
            min-height: 42px;
            padding: 10px 20px;
            font-size: 13px;
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: #F6F5F1;
            font-size: 18px;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }

        .nav-toggle:hover {
            background: rgba(200, 255, 62, 0.15);
            color: var(--color-accent);
        }

        @media (max-width: 1024px) {
            .nav-links {
                display: none;
                position: absolute;
                top: calc(100% + 8px);
                left: 0;
                right: 0;
                background: rgba(15, 17, 21, 0.92);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                border: 1px solid rgba(255, 255, 255, 0.12);
                border-radius: 20px;
                padding: 16px;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                overflow: visible;
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links a {
                padding: 14px 18px;
                font-size: 15px;
                border-radius: 12px;
            }

            .nav-links a.active::after {
                display: none;
            }

            .nav-links a.active {
                background: rgba(200, 255, 62, 0.12);
            }

            .nav-toggle {
                display: flex;
            }

            .nav-cta .btn-secondary {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .site-header {
                padding: 0 12px;
                top: 10px;
            }

            .nav-capsule {
                border-radius: 24px;
                padding: 6px 8px;
            }

            .nav-logo {
                font-size: 16px;
                gap: 6px;
            }

            .nav-cta .btn {
                padding: 8px 14px;
                font-size: 12px;
                min-height: 38px;
            }
        }

        /* ===== Hero ===== */
        .hero {
            padding: 140px 0 80px;
            background-color: var(--color-dark-bg);
            color: #F6F5F1;
            position: relative;
            overflow: hidden;
            min-height: 100vh;
            display: flex;
            align-items: center;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.35;
            z-index: 1;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 17, 21, 0.5) 0%, rgba(15, 17, 21, 0.85) 60%, var(--color-dark-bg) 100%);
            z-index: 2;
        }

        .hero .container {
            position: relative;
            z-index: 3;
        }

        .hero-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-left {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .hero-profile {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .hero-avatar {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-accent), var(--color-warning));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 32px;
            font-weight: 800;
            color: var(--color-primary);
            border: 3px solid rgba(200, 255, 62, 0.5);
            flex-shrink: 0;
        }

        .hero-profile-info h2 {
            font-size: 20px;
            font-weight: 700;
            color: #F6F5F1;
            letter-spacing: -0.3px;
        }

        .hero-profile-info p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .hero-profile-info p i {
            color: var(--color-accent);
            font-size: 10px;
        }

        .hero-badges {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .hero-badges .badge {
            background: rgba(255, 255, 255, 0.06);
            color: #F6F5F1;
            border: 1px solid rgba(255, 255, 255, 0.12);
            font-size: 12px;
            padding: 6px 14px;
            gap: 6px;
        }

        .hero-badges .badge i {
            color: var(--color-accent);
        }

        .hero-title {
            font-size: clamp(36px, 6vw, 64px);
            font-weight: 800;
            line-height: 1.08;
            letter-spacing: -1.5px;
            color: #F6F5F1;
            margin: 0;
        }

        .hero-title .accent-text {
            color: var(--color-accent);
            position: relative;
            display: inline-block;
        }

        .hero-title .accent-text::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 0;
            right: 0;
            height: 6px;
            background: rgba(200, 255, 62, 0.25);
            border-radius: 3px;
            z-index: -1;
        }

        .hero-desc {
            font-size: 17px;
            line-height: 1.85;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-top: 8px;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            margin-top: 16px;
        }

        .hero-stat {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 16px;
            padding: 16px 20px;
            text-align: center;
        }

        .hero-stat-number {
            font-family: var(--font-display);
            font-size: 28px;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1.2;
        }

        .hero-stat-label {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 4px;
            letter-spacing: 0.5px;
        }

        .hero-right {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .hero-live-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-card);
            padding: 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            transition: all var(--transition-smooth);
        }

        .hero-live-card:hover {
            border-color: var(--color-accent);
            background: rgba(200, 255, 62, 0.06);
        }

        .live-indicator {
            width: 12px;
            height: 12px;
            background-color: #FF3B30;
            border-radius: 50%;
            position: relative;
            flex-shrink: 0;
        }

        .live-indicator::after {
            content: '';
            position: absolute;
            inset: -4px;
            border-radius: 50%;
            border: 2px solid rgba(255, 59, 48, 0.4);
            animation: pulse-ring 2s ease-out infinite;
        }

        @keyframes pulse-ring {
            0% {
                transform: scale(0.8);
                opacity: 1;
            }
            100% {
                transform: scale(1.6);
                opacity: 0;
            }
        }

        .hero-live-card-info {
            flex: 1;
        }

        .hero-live-card-info h4 {
            font-size: 16px;
            font-weight: 700;
            color: #F6F5F1;
            margin-bottom: 4px;
        }

        .hero-live-card-info p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
        }

        .hero-live-tag {
            font-size: 11px;
            background: rgba(255, 59, 48, 0.2);
            color: #FF6B66;
            padding: 4px 10px;
            border-radius: 999px;
            font-weight: 600;
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }

        @media (max-width: 1024px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .hero-right {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
        }

        @media (max-width: 640px) {
            .hero {
                padding: 110px 0 60px;
                min-height: auto;
            }

            .hero-title {
                font-size: 34px;
            }

            .hero-stats {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .hero-right {
                grid-template-columns: 1fr;
            }

            .hero-profile {
                gap: 14px;
            }

            .hero-avatar {
                width: 56px;
                height: 56px;
                font-size: 24px;
            }
        }

        /* ===== Brand intro ===== */
        .brand-intro-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 48px;
            align-items: start;
        }

        .brand-intro-text {
            font-size: 17px;
            line-height: 1.95;
            color: var(--color-text-muted);
        }

        .brand-intro-text strong {
            color: var(--color-text);
            font-weight: 700;
        }

        .brand-intro-side {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .brand-intro-fact {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            box-shadow: var(--shadow-light);
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .brand-intro-fact i {
            font-size: 28px;
            color: var(--color-warning);
            flex-shrink: 0;
        }

        .brand-intro-fact h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 2px;
            color: var(--color-text);
        }

        .brand-intro-fact p {
            font-size: 13px;
            color: var(--color-text-muted);
        }

        @media (max-width: 768px) {
            .brand-intro-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        /* ===== Services ===== */
        .services-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .service-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-light);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: all var(--transition-smooth);
            position: relative;
        }

        .service-card:hover {
            transform: translateY(-6px);
            border-color: var(--color-accent);
            box-shadow: var(--shadow-hover);
        }

        .service-card .service-cover {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            display: block;
        }

        .service-card .service-body {
            padding: 28px 30px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .service-card .service-body h3 {
            font-size: 22px;
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 10px;
            color: var(--color-text);
        }

        .service-card .service-body p {
            font-size: 15px;
            line-height: 1.75;
            color: var(--color-text-muted);
            flex: 1;
        }

        .service-card .service-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 20px;
            font-size: 14px;
            font-weight: 700;
            color: var(--color-primary);
            transition: color var(--transition-fast);
        }

        .service-card .service-link i {
            transition: transform var(--transition-fast);
        }

        .service-card .service-link:hover {
            color: var(--color-warning);
        }

        .service-card .service-link:hover i {
            transform: translateX(4px);
        }

        .service-card--dark {
            grid-column: 1 / -1;
            background: var(--color-dark-bg);
            color: #F6F5F1;
            border-color: rgba(255, 255, 255, 0.08);
            flex-direction: row;
            align-items: center;
            gap: 32px;
            padding: 32px 36px;
        }

        .service-card--dark .service-body {
            padding: 0;
            flex: 1;
        }

        .service-card--dark h3 {
            color: #F6F5F1;
        }

        .service-card--dark p {
            color: rgba(255, 255, 255, 0.7);
        }

        .service-card--dark .service-link {
            color: var(--color-accent);
        }

        .service-card--dark .service-cover {
            width: 200px;
            aspect-ratio: 1/1;
            border-radius: 16px;
            object-fit: cover;
            flex-shrink: 0;
        }

        @media (max-width: 768px) {
            .services-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .service-card--dark {
                flex-direction: column;
                align-items: flex-start;
                gap: 20px;
                padding: 24px;
            }

            .service-card--dark .service-cover {
                width: 100%;
                aspect-ratio: 16/9;
            }
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-block {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            text-align: center;
            transition: all var(--transition-smooth);
        }

        .stat-block:hover {
            border-color: var(--color-accent);
            background: rgba(200, 255, 62, 0.05);
        }

        .stat-number {
            font-family: var(--font-display);
            font-size: clamp(36px, 5vw, 52px);
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1.1;
            letter-spacing: -1px;
        }

        .stat-number .stat-unit {
            font-size: 22px;
            font-weight: 600;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 8px;
            letter-spacing: 0.5px;
        }

        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 480px) {
            .stats-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }

        /* ===== Cases ===== */
        .cases-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 24px;
        }

        .case-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-light);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }

        .case-card:hover {
            transform: translateY(-6px);
            border-color: var(--color-accent);
            box-shadow: var(--shadow-hover);
        }

        .case-card .case-cover {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
        }

        .case-card .case-body {
            padding: 24px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .case-card .case-body h3 {
            font-size: 19px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 8px;
            color: var(--color-text);
        }

        .case-card .case-body p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--color-text-muted);
            flex: 1;
        }

        .case-card .case-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 16px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-warning);
        }

        .case-card--featured {
            grid-row: span 2;
        }

        .case-card--featured .case-cover {
            aspect-ratio: 16/9;
        }

        .case-card--featured .case-body h3 {
            font-size: 24px;
        }

        .case-small-group {
            display: grid;
            grid-template-columns: 1fr;
            gap: 24px;
        }

        @media (max-width: 900px) {
            .cases-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .case-card--featured {
                grid-row: auto;
            }
        }

        /* ===== Deep content ===== */
        .deep-content {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 40px 44px;
            box-shadow: var(--shadow-light);
        }

        .deep-content h3 {
            font-size: 24px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 20px;
            color: var(--color-text);
            letter-spacing: -0.3px;
        }

        .deep-content p {
            font-size: 16px;
            line-height: 1.95;
            color: var(--color-text-muted);
            margin-bottom: 18px;
        }

        .deep-content p:last-child {
            margin-bottom: 0;
        }

        .deep-content .deep-highlight {
            color: var(--color-text);
            font-weight: 600;
        }

        @media (max-width: 640px) {
            .deep-content {
                padding: 24px 20px;
            }

            .deep-content h3 {
                font-size: 20px;
            }
        }

        /* ===== News ===== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-item {
            display: grid;
            grid-template-columns: 100px 1fr auto;
            gap: 20px;
            align-items: center;
            padding: 20px 24px;
            border-bottom: 1px solid var(--color-border);
            border-radius: 0;
            transition: all var(--transition-fast);
        }

        .news-item:first-child {
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }

        .news-item:last-child {
            border-bottom: none;
            border-radius: 0 0 var(--radius-card) var(--radius-card);
        }

        .news-item:hover {
            background: rgba(200, 255, 62, 0.04);
        }

        .news-date {
            font-family: var(--font-display);
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-muted);
            letter-spacing: 0.5px;
        }

        .news-content {
            flex: 1;
        }

        .news-content h4 {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 4px;
            color: var(--color-text);
        }

        .news-content p {
            font-size: 14px;
            line-height: 1.65;
            color: var(--color-text-muted);
        }

        .news-link {
            font-size: 13px;
            font-weight: 700;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .news-link i {
            font-size: 12px;
            transition: transform var(--transition-fast);
        }

        .news-link:hover {
            color: var(--color-warning);
        }

        .news-link:hover i {
            transform: translateX(3px);
        }

        @media (max-width: 640px) {
            .news-item {
                grid-template-columns: 1fr;
                gap: 8px;
                padding: 16px 18px;
            }

            .news-date {
                font-size: 12px;
            }

            .news-link {
                justify-content: flex-start;
            }
        }

        /* ===== Solutions ===== */
        .solutions-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .solution-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-card);
            padding: 32px 30px;
            transition: all var(--transition-smooth);
        }

        .solution-card:hover {
            border-color: var(--color-accent);
            background: rgba(200, 255, 62, 0.05);
            transform: translateY(-4px);
        }

        .solution-card .solution-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(200, 255, 62, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--color-accent);
            margin-bottom: 16px;
        }

        .solution-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 8px;
            color: #F6F5F1;
        }

        .solution-card p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
        }

        @media (max-width: 768px) {
            .solutions-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ===== Hot list ===== */
        .hot-list {
            counter-reset: hot-counter;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .hot-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            display: flex;
            align-items: center;
            gap: 18px;
            counter-increment: hot-counter;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-light);
        }

        .hot-item:hover {
            transform: translateX(4px);
            border-color: var(--color-accent);
        }

        .hot-number {
            font-family: var(--font-display);
            font-size: 32px;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1;
            flex-shrink: 0;
            min-width: 46px;
            text-align: center;
        }

        .hot-info {
            flex: 1;
        }

        .hot-info h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--color-text);
        }

        .hot-info p {
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.6;
        }

        .hot-tag {
            font-size: 11px;
            font-weight: 700;
            background: rgba(255, 106, 26, 0.1);
            color: var(--color-warning);
            padding: 6px 12px;
            border-radius: 999px;
            white-space: nowrap;
            flex-shrink: 0;
        }

        @media (max-width: 640px) {
            .hot-item {
                flex-wrap: wrap;
                gap: 12px;
                padding: 16px 18px;
            }

            .hot-number {
                font-size: 24px;
                min-width: 36px;
            }
        }

        /* ===== Social proof ===== */
        .social-proof-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .proof-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow-light);
            transition: all var(--transition-smooth);
        }

        .proof-card:hover {
            transform: translateY(-4px);
            border-color: var(--color-accent);
        }

        .proof-card .proof-stars {
            color: var(--color-warning);
            font-size: 18px;
            letter-spacing: 4px;
            margin-bottom: 12px;
        }

        .proof-card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--color-text-muted);
            margin-bottom: 12px;
        }

        .proof-card .proof-author {
            font-size: 13px;
            font-weight: 700;
            color: var(--color-text);
        }

        @media (max-width: 768px) {
            .social-proof-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ===== Security ===== */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .security-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow-light);
        }

        .security-item .security-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(200, 255, 62, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--color-primary);
            margin: 0 auto 14px;
        }

        .security-item h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-text);
        }

        .security-item p {
            font-size: 13px;
            line-height: 1.65;
            color: var(--color-text-muted);
        }

        @media (max-width: 768px) {
            .security-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: 16px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: var(--color-accent);
        }

        .faq-question {
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            transition: color var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--color-warning);
        }

        .faq-question .faq-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--color-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: all var(--transition-fast);
            flex-shrink: 0;
            color: var(--color-text-muted);
        }

        .faq-item.open .faq-question .faq-icon {
            background: var(--color-accent);
            color: var(--color-primary);
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease-out, padding 0.3s ease-out;
            padding: 0 24px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--color-text-muted);
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        /* ===== Contact ===== */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 48px;
            align-items: start;
        }

        .contact-info {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .contact-info h3 {
            font-size: 22px;
            font-weight: 700;
            color: #F6F5F1;
            margin-bottom: 4px;
        }

        .contact-info p {
            font-size: 15px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
        }

        .contact-detail {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
        }

        .contact-detail i {
            color: var(--color-accent);
            font-size: 18px;
            margin-top: 3px;
            flex-shrink: 0;
        }

        .contact-form {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            padding: 32px 30px;
            box-shadow: var(--shadow-light);
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .form-group label {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text);
            letter-spacing: 0.5px;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: 12px;
            padding: 14px 16px;
            font-size: 15px;
            color: var(--color-text);
            transition: all var(--transition-fast);
            width: 100%;
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(200, 255, 62, 0.15);
            outline: none;
        }

        .form-group input.error,
        .form-group textarea.error {
            border-color: var(--color-error);
            box-shadow: 0 0 0 3px rgba(229, 72, 77, 0.12);
        }

        .form-group textarea {
            resize: vertical;
            min-height: 100px;
        }

        .form-success {
            display: none;
            background: rgba(200, 255, 62, 0.12);
            border: 1px solid var(--color-accent);
            color: #5C7A00;
            border-radius: 12px;
            padding: 16px 18px;
            font-size: 14px;
            font-weight: 600;
            text-align: center;
        }

        .form-success.show {
            display: block;
        }

        .form-error-msg {
            font-size: 12px;
            color: var(--color-error);
            display: none;
        }

        .form-error-msg.show {
            display: block;
        }

        @media (max-width: 900px) {
            .contact-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-dark-bg);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand h3 {
            font-size: 20px;
            font-weight: 800;
            color: #F6F5F1;
            margin-bottom: 10px;
            letter-spacing: -0.3px;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: #F6F5F1;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--color-accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom .footer-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 12px;
        }

        .footer-bottom .footer-links a:hover {
            color: var(--color-accent);
        }

        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* ===== Animations ===== */
        .fade-in-up {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }

        .fade-in-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .fade-in-up.delay-1 {
            transition-delay: 0.1s;
        }
        .fade-in-up.delay-2 {
            transition-delay: 0.2s;
        }
        .fade-in-up.delay-3 {
            transition-delay: 0.3s;
        }

/* roulang page: category1 */
:root {
            --color-primary: #15171C;
            --color-accent: #C8FF3E;
            --color-warning: #FF6A1A;
            --color-bg: #F6F5F1;
            --color-surface: #FFFFFF;
            --color-text: #16181D;
            --color-text-muted: #555B66;
            --color-border: #E6E4DE;
            --color-dark-bg: #0F1115;
            --color-error: #E5484D;
            --radius-card: 20px;
            --radius-button: 999px;
            --radius-small: 12px;
            --shadow-light: 0 1px 2px rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.06), 0 20px 40px rgba(0, 0, 0, 0.07);
            --transition-fast: 0.2s ease-out;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1240px;
            --font-sans: 'HarmonyOS Sans SC', 'Alibaba PuHuiTi', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-display: 'Space Grotesk', 'Inter', 'HarmonyOS Sans SC', 'Noto Sans SC', sans-serif;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast), opacity var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: 72px 0;
            position: relative;
        }
        .section--dark {
            background-color: var(--color-dark-bg);
            color: #F6F5F1;
        }
        .section--dark .section-title,
        .section--dark .section-desc {
            color: #F6F5F1;
        }
        .section--dark .section-desc {
            color: #B8BCC4;
        }
        .section-title {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: var(--color-text);
        }
        .section-desc {
            font-size: 17px;
            line-height: 1.8;
            color: var(--color-text-muted);
            max-width: 720px;
            margin-bottom: 48px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1.5px;
            color: var(--color-warning);
            text-transform: uppercase;
            margin-bottom: 16px;
        }
        .section-tag::before {
            content: '';
            width: 24px;
            height: 2px;
            background-color: var(--color-warning);
            border-radius: 2px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 28px;
            border-radius: var(--radius-button);
            font-size: 15px;
            font-weight: 700;
            letter-spacing: 0.3px;
            transition: all var(--transition-fast);
            border: 2px solid transparent;
            white-space: nowrap;
            min-height: 52px;
        }
        .btn-primary {
            background-color: var(--color-accent);
            color: var(--color-primary);
            border-color: var(--color-accent);
        }
        .btn-primary:hover {
            background-color: var(--color-warning);
            border-color: var(--color-warning);
            color: var(--color-primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 255, 62, 0.25);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--color-primary);
            border-color: var(--color-border);
        }
        .btn-secondary:hover {
            border-color: var(--color-accent);
            color: var(--color-primary);
            background-color: rgba(200, 255, 62, 0.08);
        }
        .btn-dark {
            background-color: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }
        .btn-dark:hover {
            background-color: #2A2D35;
            border-color: #2A2D35;
            color: var(--color-accent);
        }
        .btn-outline-light {
            background-color: transparent;
            color: #F6F5F1;
            border-color: rgba(255, 255, 255, 0.3);
        }
        .btn-outline-light:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background-color: rgba(200, 255, 62, 0.08);
        }
        .btn-sm {
            padding: 10px 20px;
            min-height: 42px;
            font-size: 14px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.5px;
            line-height: 1.6;
        }
        .badge-accent {
            background-color: rgba(200, 255, 62, 0.15);
            color: #5A7A00;
            border: 1px solid rgba(200, 255, 62, 0.35);
        }
        .badge-warning {
            background-color: rgba(255, 106, 26, 0.12);
            color: #D54E0A;
            border: 1px solid rgba(255, 106, 26, 0.3);
        }
        .badge-dark {
            background-color: rgba(15, 17, 21, 0.85);
            color: #F6F5F1;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 16px 24px 8px;
            pointer-events: none;
        }
        .nav-capsule {
            pointer-events: auto;
            max-width: var(--container-max);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 8px 12px 8px 20px;
            background: rgba(15, 17, 21, 0.75);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 999px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.18);
        }
        .nav-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 17px;
            color: #fff;
            letter-spacing: 0.5px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .nav-logo:hover {
            color: var(--color-accent);
        }
        .logo-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: var(--color-accent);
            box-shadow: 0 0 12px rgba(200, 255, 62, 0.7);
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .nav-links::-webkit-scrollbar {
            display: none;
        }
        .nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            color: rgba(246, 245, 241, 0.8);
            white-space: nowrap;
            transition: all var(--transition-fast);
            position: relative;
        }
        .nav-links a:hover {
            color: var(--color-accent);
            background-color: rgba(200, 255, 62, 0.08);
        }
        .nav-links a.active {
            color: var(--color-accent);
            background-color: rgba(200, 255, 62, 0.12);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 16px;
            height: 3px;
            border-radius: 2px;
            background-color: var(--color-accent);
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .nav-cta .btn {
            min-height: 40px;
            padding: 8px 18px;
            font-size: 13px;
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            transition: all var(--transition-fast);
        }
        .nav-toggle:hover {
            background: rgba(200, 255, 62, 0.2);
            color: var(--color-accent);
            border-color: var(--color-accent);
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            padding: 24px 0 0;
            background-color: var(--color-bg);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-text-muted);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--color-warning);
        }
        .breadcrumb .separator {
            color: #B8BCC4;
            font-size: 12px;
        }
        .breadcrumb .current {
            color: var(--color-text);
            font-weight: 600;
        }

        /* Category Hero */
        .category-hero {
            padding: 48px 0 56px;
            position: relative;
            background: linear-gradient(180deg, var(--color-bg) 0%, #F0EFEA 100%);
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: -180px;
            right: -120px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(200, 255, 62, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -140px;
            left: -80px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 106, 26, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .category-hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .category-hero-content h1 {
            font-size: clamp(32px, 5vw, 48px);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.5px;
            margin-bottom: 20px;
            color: var(--color-text);
        }
        .category-hero-content h1 .accent {
            color: var(--color-primary);
            position: relative;
            display: inline-block;
        }
        .category-hero-content h1 .accent::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 0;
            width: 100%;
            height: 8px;
            background: rgba(200, 255, 62, 0.55);
            border-radius: 4px;
            z-index: -1;
        }
        .category-hero-desc {
            font-size: 17px;
            line-height: 1.85;
            color: var(--color-text-muted);
            max-width: 560px;
            margin-bottom: 28px;
        }
        .category-hero-stats {
            display: flex;
            gap: 36px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .hero-stat .stat-num {
            font-family: var(--font-display);
            font-size: 28px;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.5px;
        }
        .hero-stat .stat-label {
            font-size: 13px;
            color: var(--color-text-muted);
        }
        .category-hero-cta {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .category-hero-image {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            aspect-ratio: 16/10;
        }
        .category-hero-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease-out;
        }
        .category-hero-image:hover img {
            transform: scale(1.03);
        }
        .category-hero-image .image-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 17, 21, 0.4) 0%, rgba(15, 17, 21, 0.05) 60%);
            display: flex;
            align-items: flex-end;
            padding: 28px;
        }
        .category-hero-image .overlay-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            background: rgba(15, 17, 21, 0.8);
            border-radius: 999px;
            color: var(--color-accent);
            font-size: 13px;
            font-weight: 600;
            backdrop-filter: blur(6px);
        }

        /* Filter Bar */
        .filter-bar {
            padding: 0 0 32px;
            position: relative;
            z-index: 3;
        }
        .filter-bar-inner {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: 16px;
            padding: 16px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-light);
        }
        .filter-tabs {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .filter-tab {
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-muted);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
            cursor: pointer;
            background: var(--color-surface);
        }
        .filter-tab:hover {
            border-color: var(--color-accent);
            color: var(--color-primary);
        }
        .filter-tab.active {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }
        .filter-sort {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-text-muted);
        }
        .filter-sort select {
            padding: 8px 14px;
            border-radius: 999px;
            border: 1px solid var(--color-border);
            background: var(--color-surface);
            font-size: 13px;
            color: var(--color-text);
            cursor: pointer;
            transition: border-color var(--transition-fast);
        }
        .filter-sort select:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(200, 255, 62, 0.15);
        }

        /* Article List */
        .articles-section {
            padding: 16px 0 72px;
        }
        .articles-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            align-items: start;
        }
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .article-card {
            display: grid;
            grid-template-columns: 260px 1fr;
            gap: 24px;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--shadow-light);
            transition: all var(--transition-smooth);
            cursor: pointer;
        }
        .article-card:hover {
            transform: translateY(-4px);
            border-color: var(--color-accent);
            box-shadow: var(--shadow-hover);
        }
        .article-card-image {
            border-radius: var(--radius-small);
            overflow: hidden;
            aspect-ratio: 16/10;
            background: #EAE9E4;
            flex-shrink: 0;
        }
        .article-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease-out;
        }
        .article-card:hover .article-card-image img {
            transform: scale(1.05);
        }
        .article-card-content {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .article-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--color-text-muted);
        }
        .article-card-meta .article-date {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .article-card-meta .article-tag {
            display: inline-flex;
            padding: 2px 10px;
            border-radius: 999px;
            font-size: 11px;
            font-weight: 600;
            background: rgba(200, 255, 62, 0.14);
            color: #4A6600;
            border: 1px solid rgba(200, 255, 62, 0.3);
        }
        .article-card-title {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--color-text);
            transition: color var(--transition-fast);
        }
        .article-card:hover .article-card-title {
            color: var(--color-primary);
        }
        .article-card-excerpt {
            font-size: 15px;
            line-height: 1.7;
            color: var(--color-text-muted);
            flex: 1;
        }
        .article-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 700;
            color: var(--color-primary);
            transition: all var(--transition-fast);
            align-self: flex-start;
        }
        .article-card-link i {
            font-size: 12px;
            transition: transform var(--transition-fast);
        }
        .article-card:hover .article-card-link {
            color: var(--color-warning);
        }
        .article-card:hover .article-card-link i {
            transform: translateX(4px);
        }

        /* Sidebar */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 100px;
        }
        .sidebar-widget {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-light);
        }
        .sidebar-widget h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--color-text);
            letter-spacing: -0.3px;
        }
        .hot-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .hot-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 8px 0;
            border-bottom: 1px solid var(--color-border);
            transition: all var(--transition-fast);
        }
        .hot-item:last-child {
            border-bottom: none;
        }
        .hot-item:hover {
            padding-left: 6px;
        }
        .hot-item .hot-rank {
            font-family: var(--font-display);
            font-size: 22px;
            font-weight: 800;
            color: var(--color-border);
            min-width: 28px;
            transition: color var(--transition-fast);
        }
        .hot-item:hover .hot-rank {
            color: var(--color-warning);
        }
        .hot-item .hot-info {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .hot-item .hot-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.4;
        }
        .hot-item .hot-views {
            font-size: 12px;
            color: var(--color-text-muted);
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud a {
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            background: #F0EFEA;
            color: var(--color-text-muted);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
        }
        .tag-cloud a:hover {
            background: var(--color-primary);
            color: var(--color-accent);
            border-color: var(--color-primary);
        }
        .related-cat-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .related-cat-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 14px;
            border-radius: var(--radius-small);
            background: #FAF9F7;
            border: 1px solid var(--color-border);
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
            transition: all var(--transition-fast);
        }
        .related-cat-item:hover {
            border-color: var(--color-accent);
            background: rgba(200, 255, 62, 0.06);
            color: var(--color-primary);
        }
        .related-cat-item i {
            font-size: 12px;
            color: var(--color-text-muted);
        }

        /* Pagination */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 40px 0 0;
        }
        .page-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 42px;
            height: 42px;
            padding: 0 14px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-muted);
            border: 1px solid var(--color-border);
            background: var(--color-surface);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .page-btn:hover {
            border-color: var(--color-accent);
            color: var(--color-primary);
        }
        .page-btn.active {
            background: var(--color-accent);
            color: var(--color-primary);
            border-color: var(--color-accent);
        }
        .page-btn.dots {
            border: none;
            background: transparent;
            cursor: default;
        }

        /* Deep content section */
        .deep-content {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 40px 44px;
            margin-bottom: 40px;
            box-shadow: var(--shadow-light);
        }
        .deep-content h2 {
            font-size: 26px;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 20px;
            color: var(--color-text);
        }
        .deep-content p {
            font-size: 16px;
            line-height: 1.9;
            color: var(--color-text-muted);
            margin-bottom: 16px;
        }
        .deep-content p:last-child {
            margin-bottom: 0;
        }
        .deep-content .deep-highlight {
            color: var(--color-warning);
            font-weight: 600;
        }

        /* Related Categories */
        .related-cats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            gap: 20px;
            margin-top: 32px;
        }
        .related-cat-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-light);
            transition: all var(--transition-smooth);
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .related-cat-card:hover {
            transform: translateY(-4px);
            border-color: var(--color-accent);
            box-shadow: var(--shadow-hover);
        }
        .related-cat-card .rc-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: rgba(200, 255, 62, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--color-primary);
            flex-shrink: 0;
        }
        .related-cat-card .rc-info {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .related-cat-card .rc-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
        }
        .related-cat-card .rc-count {
            font-size: 13px;
            color: var(--color-text-muted);
        }

        /* CTA Section */
        .cta-section {
            background: var(--color-dark-bg);
            border-radius: 24px;
            padding: 56px 48px;
            position: relative;
            overflow: hidden;
            margin: 0 0 72px;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -80px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(200, 255, 62, 0.18) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -120px;
            left: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255, 106, 26, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .cta-section .cta-text h2 {
            font-size: clamp(24px, 3.5vw, 34px);
            font-weight: 800;
            color: #F6F5F1;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }
        .cta-section .cta-text p {
            font-size: 16px;
            color: #B8BCC4;
            max-width: 500px;
            line-height: 1.8;
        }
        .cta-section .cta-btns {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background-color: var(--color-dark-bg);
            color: #B8BCC4;
            padding: 64px 0 24px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 800;
            color: #F6F5F1;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: #8A8F98;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #F6F5F1;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul a {
            font-size: 14px;
            color: #8A8F98;
            transition: color var(--transition-fast);
        }
        .footer-col ul a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 13px;
            color: #6A7078;
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .footer-links a {
            color: #6A7078;
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--color-accent);
        }
        .footer-links span {
            color: #3A3F47;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .category-hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .category-hero-image {
                aspect-ratio: 16/9;
            }
            .articles-layout {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
            }
            .sidebar-widget {
                flex: 1 1 240px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .nav-capsule {
                flex-wrap: wrap;
                border-radius: 24px;
                padding: 12px 16px;
            }
            .nav-links {
                order: 3;
                width: 100%;
                justify-content: flex-start;
                padding-top: 8px;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .nav-capsule {
                border-radius: 20px;
            }
            .nav-links {
                gap: 2px;
            }
            .nav-links a {
                padding: 6px 10px;
                font-size: 12px;
            }
            .nav-cta .btn {
                display: none;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .nav-links {
                display: none;
            }
            .nav-links.mobile-open {
                display: flex;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding-top: 12px;
            }
            .nav-links.mobile-open a {
                justify-content: flex-start;
            }
            .article-card {
                grid-template-columns: 1fr;
                gap: 16px;
                padding: 16px;
            }
            .article-card-image {
                aspect-ratio: 16/9;
            }
            .filter-bar-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .deep-content {
                padding: 24px 20px;
            }
            .cta-section {
                padding: 36px 24px;
            }
            .cta-section .container {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .breadcrumb-bar {
                padding-top: 16px;
            }
            .category-hero {
                padding: 32px 0 40px;
            }
            .category-hero-stats {
                gap: 20px;
            }
            .pagination {
                flex-wrap: wrap;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .site-header {
                padding: 12px 16px 4px;
            }
            .nav-capsule {
                padding: 8px 12px;
                border-radius: 16px;
            }
            .nav-logo {
                font-size: 15px;
            }
            .category-hero-content h1 {
                font-size: 28px;
            }
            .category-hero-desc {
                font-size: 15px;
            }
            .article-card-title {
                font-size: 17px;
            }
            .article-card-excerpt {
                font-size: 14px;
            }
            .cta-section {
                padding: 28px 18px;
                border-radius: 16px;
            }
            .sidebar-widget {
                flex: 1 1 100%;
            }
            .related-cats-grid {
                grid-template-columns: 1fr;
            }
            .filter-tabs {
                width: 100%;
            }
            .filter-tab {
                flex: 1;
                text-align: center;
                justify-content: center;
            }
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                transition-duration: 0.01ms !important;
                animation-duration: 0.01ms !important;
            }
            html {
                scroll-behavior: auto;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #15171C;
            --color-accent: #C8FF3E;
            --color-warning: #FF6A1A;
            --color-bg: #F6F5F1;
            --color-surface: #FFFFFF;
            --color-text: #16181D;
            --color-text-muted: #555B66;
            --color-border: #E6E4DE;
            --color-dark-bg: #0F1115;
            --color-error: #E5484D;
            --radius-card: 20px;
            --radius-button: 999px;
            --radius-small: 12px;
            --shadow-light: 0 1px 2px rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.06), 0 20px 40px rgba(0, 0, 0, 0.07);
            --transition-fast: 0.2s ease-out;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1240px;
            --font-sans: 'HarmonyOS Sans SC', 'Alibaba PuHuiTi', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-display: 'Space Grotesk', 'Inter', 'HarmonyOS Sans SC', 'Noto Sans SC', sans-serif;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            margin: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast), opacity var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        h1, h2, h3, h4, h5, h6, p {
            margin: 0;
        }
        * {
            box-sizing: border-box;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 88px 0;
            position: relative;
        }

        .section--dark {
            background-color: var(--color-dark-bg);
            color: #F6F5F1;
        }
        .section--dark .section-title,
        .section--dark .section-desc {
            color: #F6F5F1;
        }
        .section--dark .section-desc {
            color: #B8BCC4;
        }

        .section-title {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: var(--color-text);
        }
        .section-desc {
            font-size: 17px;
            line-height: 1.8;
            color: var(--color-text-muted);
            max-width: 720px;
            margin-bottom: 48px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1.5px;
            color: var(--color-warning);
            text-transform: uppercase;
            margin-bottom: 16px;
        }
        .section-tag::before {
            content: '';
            width: 24px;
            height: 2px;
            background-color: var(--color-warning);
            border-radius: 2px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 28px;
            border-radius: var(--radius-button);
            font-size: 15px;
            font-weight: 700;
            letter-spacing: 0.3px;
            transition: all var(--transition-fast);
            border: 2px solid transparent;
            white-space: nowrap;
            min-height: 52px;
        }
        .btn-primary {
            background-color: var(--color-accent);
            color: var(--color-primary);
            border-color: var(--color-accent);
        }
        .btn-primary:hover {
            background-color: var(--color-warning);
            border-color: var(--color-warning);
            color: var(--color-primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 255, 62, 0.25);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--color-primary);
            border-color: var(--color-border);
        }
        .btn-secondary:hover {
            border-color: var(--color-accent);
            color: var(--color-primary);
            background-color: rgba(200, 255, 62, 0.08);
        }
        .btn-dark {
            background-color: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }
        .btn-dark:hover {
            background-color: #2A2D35;
            border-color: #2A2D35;
            color: var(--color-accent);
        }
        .btn-outline-light {
            background-color: transparent;
            color: #F6F5F1;
            border-color: rgba(255, 255, 255, 0.3);
        }
        .btn-outline-light:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background-color: rgba(200, 255, 62, 0.08);
        }
        .btn-sm {
            padding: 10px 20px;
            min-height: 42px;
            font-size: 14px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.5px;
            line-height: 1.6;
        }
        .badge-accent {
            background-color: rgba(200, 255, 62, 0.18);
            color: var(--color-accent);
            border: 1px solid rgba(200, 255, 62, 0.3);
        }
        .badge-warning {
            background-color: rgba(255, 106, 26, 0.12);
            color: var(--color-warning);
            border: 1px solid rgba(255, 106, 26, 0.25);
        }
        .badge-muted {
            background-color: rgba(85, 91, 102, 0.1);
            color: var(--color-text-muted);
            border: 1px solid var(--color-border);
        }

        /* Navigation */
        .site-header {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 0 24px;
            pointer-events: none;
        }
        .nav-capsule {
            max-width: var(--container-max);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: rgba(15, 17, 21, 0.78);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 999px;
            padding: 8px 14px;
            pointer-events: auto;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        .nav-logo:hover {
            color: var(--color-accent);
        }
        .logo-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: var(--color-accent);
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
        }
        .nav-links::-webkit-scrollbar {
            display: none;
        }
        .nav-links a {
            color: rgba(255, 255, 255, 0.82);
            font-size: 13.5px;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 999px;
            white-space: nowrap;
            transition: color var(--transition-fast), background-color var(--transition-fast);
        }
        .nav-links a:hover {
            color: var(--color-accent);
            background-color: rgba(200, 255, 62, 0.08);
        }
        .nav-links a.active {
            color: var(--color-accent);
            background-color: rgba(200, 255, 62, 0.12);
            font-weight: 600;
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .nav-toggle {
            display: none;
            color: #fff;
            font-size: 20px;
            padding: 8px;
            border-radius: 50%;
            transition: background-color var(--transition-fast);
        }
        .nav-toggle:hover {
            background-color: rgba(255, 255, 255, 0.1);
        }

        /* Hero */
        .hero-inner {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            padding: 160px 0 80px;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            isolation: isolate;
            overflow: hidden;
        }
        .hero-inner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 17, 21, 0.55) 0%, rgba(15, 17, 21, 0.82) 100%);
            z-index: -1;
        }
        .hero-content {
            max-width: 780px;
            color: #fff;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 28px;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
        }
        .breadcrumb a:hover {
            color: var(--color-accent);
        }
        .breadcrumb .divider {
            font-size: 11px;
            opacity: 0.6;
        }
        .breadcrumb .current {
            color: var(--color-accent);
            font-weight: 500;
        }
        .hero-inner .hero-title {
            font-size: clamp(36px, 5.5vw, 60px);
            font-weight: 800;
            line-height: 1.08;
            letter-spacing: -1px;
            margin-bottom: 24px;
            color: #fff;
        }
        .hero-inner .hero-desc {
            font-size: 17px;
            line-height: 1.85;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            margin-bottom: 36px;
        }
        .hero-ctas {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* Filter bar */
        .filter-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 32px;
            padding: 16px 20px;
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: 16px;
        }
        .filter-group {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .filter-label {
            font-size: 13px;
            color: var(--color-text-muted);
            font-weight: 500;
            margin-right: 4px;
        }
        .filter-btn {
            padding: 7px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text-muted);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .filter-btn:hover {
            border-color: var(--color-accent);
            color: var(--color-primary);
        }
        .filter-btn.active {
            background-color: var(--color-accent);
            color: var(--color-primary);
            border-color: var(--color-accent);
            font-weight: 600;
        }
        .sort-select {
            padding: 8px 14px;
            border-radius: 999px;
            border: 1px solid var(--color-border);
            font-size: 13px;
            color: var(--color-text);
            cursor: pointer;
            appearance: none;
            background-color: transparent;
            min-width: 130px;
        }
        .sort-select:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(200, 255, 62, 0.15);
        }

        /* Content list */
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 36px;
            align-items: start;
        }
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .article-card {
            display: flex;
            gap: 20px;
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            padding: 20px;
            transition: all var(--transition-fast);
        }
        .article-card:hover {
            border-color: var(--color-accent);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .article-cover {
            width: 200px;
            flex-shrink: 0;
            border-radius: 12px;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }
        .article-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .article-card:hover .article-cover img {
            transform: scale(1.03);
        }
        .article-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            gap: 10px;
        }
        .article-date {
            font-size: 12px;
            color: var(--color-text-muted);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-date i {
            color: var(--color-warning);
            font-size: 11px;
        }
        .article-title {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--color-text);
            transition: color var(--transition-fast);
        }
        .article-card:hover .article-title {
            color: var(--color-primary);
        }
        .article-excerpt {
            font-size: 14px;
            line-height: 1.7;
            color: var(--color-text-muted);
        }
        .article-link {
            align-self: flex-start;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition-fast);
        }
        .article-link:hover {
            color: var(--color-warning);
        }
        .article-link i {
            font-size: 11px;
        }

        /* Sidebar */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .sidebar-widget {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px;
        }
        .sidebar-widget h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--color-text);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-widget h3 i {
            color: var(--color-warning);
            font-size: 14px;
        }
        .hot-item {
            display: flex;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid var(--color-border);
        }
        .hot-item:last-child {
            border-bottom: none;
        }
        .hot-index {
            font-family: var(--font-display);
            font-size: 18px;
            font-weight: 700;
            color: var(--color-border);
            width: 28px;
            flex-shrink: 0;
        }
        .hot-text a {
            font-size: 13px;
            line-height: 1.5;
            color: var(--color-text);
            font-weight: 500;
        }
        .hot-text a:hover {
            color: var(--color-accent);
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud a {
            padding: 6px 13px;
            border-radius: 999px;
            font-size: 12px;
            color: var(--color-text-muted);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
        }
        .tag-cloud a:hover {
            border-color: var(--color-accent);
            color: var(--color-primary);
            background-color: rgba(200, 255, 62, 0.08);
        }
        .related-links li {
            padding: 8px 0;
            border-bottom: 1px solid var(--color-border);
        }
        .related-links li:last-child {
            border-bottom: none;
        }
        .related-links a {
            font-size: 13px;
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
        }
        .related-links a:hover {
            color: var(--color-accent);
        }
        .related-links i {
            font-size: 10px;
            color: var(--color-warning);
        }

        /* Pagination */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-top: 36px;
        }
        .page-link {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-muted);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
        }
        .page-link:hover {
            border-color: var(--color-accent);
            color: var(--color-primary);
        }
        .page-link.active {
            background-color: var(--color-accent);
            color: var(--color-primary);
            border-color: var(--color-accent);
        }
        .page-link.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* Service / capability cards */
        .service-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .service-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px;
            transition: all var(--transition-fast);
        }
        .service-card:hover {
            border-color: var(--color-accent);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .service-card.wide {
            grid-column: 1 / -1;
            background-color: var(--color-dark-bg);
            border-color: var(--color-dark-bg);
        }
        .service-card.wide .service-title {
            color: #fff;
        }
        .service-card.wide .service-desc {
            color: #B8BCC4;
        }
        .service-card.wide .service-tag {
            color: var(--color-accent);
        }
        .service-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background-color: rgba(200, 255, 62, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            font-size: 20px;
            color: var(--color-warning);
        }
        .service-card.wide .service-icon {
            background-color: rgba(200, 255, 62, 0.15);
            color: var(--color-accent);
        }
        .service-title {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--color-text);
        }
        .service-desc {
            font-size: 14px;
            line-height: 1.7;
            color: var(--color-text-muted);
        }

        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 18px;
        }
        .step-item {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px 18px;
            text-align: left;
            transition: all var(--transition-fast);
            position: relative;
        }
        .step-item:hover {
            border-color: var(--color-accent);
            transform: translateY(-4px);
            box-shadow: var(--shadow-light);
        }
        .step-number {
            font-family: var(--font-display);
            font-size: 36px;
            font-weight: 800;
            color: var(--color-accent);
            margin-bottom: 10px;
            line-height: 1;
        }
        .step-item h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-text);
        }
        .step-item p {
            font-size: 13px;
            line-height: 1.7;
            color: var(--color-text-muted);
        }

        /* Scenarios */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }
        .scenario-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: all var(--transition-fast);
            text-align: left;
        }
        .scenario-card:hover {
            border-color: var(--color-warning);
            transform: translateY(-4px);
            box-shadow: var(--shadow-light);
        }
        .scenario-card .scenario-icon {
            font-size: 24px;
            color: var(--color-warning);
            margin-bottom: 12px;
        }
        .scenario-card h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-text);
        }
        .scenario-card p {
            font-size: 13px;
            line-height: 1.7;
            color: var(--color-text-muted);
        }

        /* Data */
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .data-item {
            padding: 16px;
        }
        .data-number {
            font-family: var(--font-display);
            font-size: 48px;
            font-weight: 800;
            color: var(--color-accent);
            margin-bottom: 8px;
            line-height: 1;
            letter-spacing: -1px;
        }
        .data-unit {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-accent);
        }
        .data-label {
            font-size: 14px;
            color: #B8BCC4;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: 16px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--color-accent);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 24px;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            text-align: left;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-question .faq-icon {
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--color-warning);
            flex-shrink: 0;
            transition: transform var(--transition-fast);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth);
        }
        .faq-item.open .faq-answer {
            max-height: 250px;
        }
        .faq-answer p {
            padding: 0 24px 20px;
            font-size: 14px;
            line-height: 1.8;
            color: var(--color-text-muted);
        }

        /* CTA */
        .cta-section {
            background-color: var(--color-dark-bg);
            border-radius: var(--radius-card);
            padding: 48px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .cta-left h2 {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 10px;
        }
        .cta-left p {
            font-size: 15px;
            color: #B8BCC4;
            line-height: 1.7;
            max-width: 500px;
        }
        .cta-right {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background-color: var(--color-dark-bg);
            color: #B8BCC4;
            padding: 56px 0 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 13.5px;
            line-height: 1.7;
            color: #B8BCC4;
            max-width: 340px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col a {
            font-size: 13px;
            color: #B8BCC4;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 12px;
            color: #8E929A;
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .footer-links a {
            color: #8E929A;
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--color-accent);
        }

        /* Reveal animation */
        .reveal {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity var(--transition-smooth), transform var(--transition-smooth);
        }
        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }
        @media (prefers-reduced-motion: reduce) {
            .reveal {
                opacity: 1;
                transform: none;
                transition: none;
            }
            html {
                scroll-behavior: auto;
            }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .content-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-capsule {
                flex-wrap: wrap;
                border-radius: 24px;
                padding: 10px 14px;
            }
            .nav-links {
                order: 3;
                width: 100%;
                justify-content: flex-start;
                padding-top: 8px;
                border-top: 1px solid rgba(255, 255, 255, 0.08);
            }
            .nav-cta .btn {
                display: none;
            }
            .nav-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .nav-cta {
                margin-left: auto;
            }
            .service-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .article-card {
                flex-direction: column;
                padding: 16px;
            }
            .article-cover {
                width: 100%;
                aspect-ratio: 16 / 9;
            }
            .cta-section {
                flex-direction: column;
                align-items: flex-start;
            }
            .section {
                padding: 64px 0;
            }
        }

        @media (max-width: 520px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .data-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .data-number {
                font-size: 34px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .filter-bar {
                flex-direction: column;
                align-items: flex-start;
            }
            .hero-inner {
                min-height: 480px;
                padding: 140px 0 60px;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #15171C;
            --color-accent: #C8FF3E;
            --color-warning: #FF6A1A;
            --color-bg: #F6F5F1;
            --color-surface: #FFFFFF;
            --color-text: #16181D;
            --color-text-muted: #555B66;
            --color-border: #E6E4DE;
            --color-dark-bg: #0F1115;
            --color-error: #E5484D;
            --radius-card: 20px;
            --radius-button: 999px;
            --radius-small: 12px;
            --shadow-light: 0 1px 2px rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.06), 0 20px 40px rgba(0, 0, 0, 0.07);
            --transition-fast: 0.2s ease-out;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1240px;
            --font-sans: 'HarmonyOS Sans SC', 'Alibaba PuHuiTi', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-display: 'Space Grotesk', 'Inter', 'HarmonyOS Sans SC', 'Noto Sans SC', sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast), opacity var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 88px 0;
            position: relative;
        }
        .section--dark {
            background-color: var(--color-dark-bg);
            color: #F6F5F1;
        }
        .section--dark .section-title,
        .section--dark .section-desc {
            color: #F6F5F1;
        }
        .section--dark .section-desc {
            color: #B8BCC4;
        }

        .section-title {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: var(--color-text);
        }
        .section-desc {
            font-size: 17px;
            line-height: 1.8;
            color: var(--color-text-muted);
            max-width: 720px;
            margin-bottom: 48px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1.5px;
            color: var(--color-warning);
            text-transform: uppercase;
            margin-bottom: 16px;
        }
        .section-tag::before {
            content: '';
            width: 24px;
            height: 2px;
            background-color: var(--color-warning);
            border-radius: 2px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 28px;
            border-radius: var(--radius-button);
            font-size: 15px;
            font-weight: 700;
            letter-spacing: 0.3px;
            transition: all var(--transition-fast);
            border: 2px solid transparent;
            white-space: nowrap;
            min-height: 52px;
        }
        .btn-primary {
            background-color: var(--color-accent);
            color: var(--color-primary);
            border-color: var(--color-accent);
        }
        .btn-primary:hover {
            background-color: var(--color-warning);
            border-color: var(--color-warning);
            color: var(--color-primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 255, 62, 0.25);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--color-primary);
            border-color: var(--color-border);
        }
        .btn-secondary:hover {
            border-color: var(--color-accent);
            color: var(--color-primary);
            background-color: rgba(200, 255, 62, 0.08);
        }
        .btn-dark {
            background-color: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }
        .btn-dark:hover {
            background-color: #2A2D35;
            border-color: #2A2D35;
            color: var(--color-accent);
        }
        .btn-outline-light {
            background-color: transparent;
            color: #F6F5F1;
            border-color: rgba(255, 255, 255, 0.3);
        }
        .btn-outline-light:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background-color: rgba(200, 255, 62, 0.08);
        }
        .btn-sm {
            padding: 10px 20px;
            min-height: 42px;
            font-size: 14px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.5px;
            line-height: 1.6;
        }
        .badge-accent {
            background-color: rgba(200, 255, 62, 0.15);
            color: #5E7D00;
        }
        .badge-warning {
            background-color: rgba(255, 106, 26, 0.12);
            color: #C94E10;
        }
        .badge-dark {
            background-color: rgba(21, 23, 28, 0.08);
            color: var(--color-text-muted);
        }
        .section--dark .badge-accent {
            background-color: rgba(200, 255, 62, 0.18);
            color: var(--color-accent);
        }
        .section--dark .badge-warning {
            background-color: rgba(255, 106, 26, 0.2);
            color: #FF8A4A;
        }

        /* Header & Nav */
        .site-header {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 0 24px;
        }
        .nav-capsule {
            max-width: var(--container-max);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: rgba(15, 17, 21, 0.72);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 999px;
            padding: 10px 20px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.18);
        }
        .nav-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 18px;
            letter-spacing: -0.3px;
            color: #F6F5F1;
            white-space: nowrap;
        }
        .nav-logo:hover {
            color: var(--color-accent);
        }
        .logo-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: var(--color-accent);
            box-shadow: 0 0 12px rgba(200, 255, 62, 0.7);
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .nav-links a {
            padding: 8px 14px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            color: #DDE0E5;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--color-accent);
            background-color: rgba(200, 255, 62, 0.08);
        }
        .nav-links a.active {
            color: var(--color-accent);
            background-color: rgba(200, 255, 62, 0.12);
        }
        .nav-links a.active::after {
            content: '';
            display: inline-block;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background-color: var(--color-accent);
            margin-left: 6px;
            vertical-align: middle;
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #F6F5F1;
            font-size: 22px;
            padding: 6px;
            line-height: 1;
            border-radius: 8px;
        }
        .nav-toggle:hover {
            color: var(--color-accent);
        }

        /* Breadcrumb */
        .breadcrumb-section {
            padding-top: 120px;
            padding-bottom: 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-text-muted);
        }
        .breadcrumb a:hover {
            color: var(--color-warning);
        }
        .breadcrumb .sep {
            color: #B8BCC4;
        }
        .breadcrumb .current {
            color: var(--color-text);
            font-weight: 600;
        }

        /* Category Hero */
        .category-hero {
            padding: 48px 0 72px;
        }
        .category-hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 56px;
            align-items: center;
        }
        .category-hero-content h1 {
            font-size: clamp(36px, 5vw, 52px);
            font-weight: 800;
            line-height: 1.1;
            letter-spacing: -1px;
            color: var(--color-text);
            margin-bottom: 20px;
        }
        .category-hero-content h1 .highlight {
            color: var(--color-warning);
        }
        .category-hero-desc {
            font-size: 17px;
            line-height: 1.85;
            color: var(--color-text-muted);
            margin-bottom: 32px;
            max-width: 560px;
        }
        .category-hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* Coupon Wall */
        .coupon-wall {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .coupon-main-card {
            background: var(--color-dark-bg);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            color: #F6F5F1;
            border: 2px solid rgba(200, 255, 62, 0.4);
            box-shadow: var(--shadow-hover);
            position: relative;
            overflow: hidden;
            transition: all var(--transition-smooth);
        }
        .coupon-main-card::before {
            content: '';
            position: absolute;
            top: 0;
            right: -40px;
            width: 160px;
            height: 160px;
            background: radial-gradient(circle, rgba(200, 255, 62, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .coupon-main-card:hover {
            border-color: var(--color-accent);
            transform: translateY(-4px);
            box-shadow: 0 8px 32px rgba(200, 255, 62, 0.15);
        }
        .coupon-main-card .tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 1px;
            color: var(--color-accent);
            margin-bottom: 16px;
        }
        .coupon-main-card h3 {
            font-size: 24px;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 8px;
        }
        .coupon-main-card p {
            font-size: 14px;
            line-height: 1.7;
            color: #B8BCC4;
            margin-bottom: 20px;
        }
        .coupon-main-card .coupon-code {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(200, 255, 62, 0.12);
            border: 1px dashed rgba(200, 255, 62, 0.5);
            border-radius: 999px;
            padding: 10px 20px;
            font-family: var(--font-display);
            font-size: 16px;
            font-weight: 700;
            color: var(--color-accent);
            letter-spacing: 1px;
        }
        .coupon-mini-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }
        .coupon-mini-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            padding: 20px 18px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-light);
            transition: all var(--transition-fast);
        }
        .coupon-mini-card:hover {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .coupon-mini-card .tag {
            font-size: 11px;
            font-weight: 700;
            color: var(--color-warning);
            margin-bottom: 8px;
            letter-spacing: 0.5px;
        }
        .coupon-mini-card h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--color-text);
        }
        .coupon-mini-card p {
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.6;
        }

        /* Feature Grid */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-light);
            transition: all var(--transition-smooth);
        }
        .feature-card:hover {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-5px);
        }
        .feature-card .icon-wrap {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-small);
            background-color: rgba(200, 255, 62, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #5E7D00;
            margin-bottom: 16px;
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.3;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        /* Service Grid */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .service-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-light);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }
        .service-card:hover {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-5px);
        }
        .service-card .card-image {
            aspect-ratio: 16/9;
            overflow: hidden;
            background-color: #E8E6E0;
        }
        .service-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .service-card:hover .card-image img {
            transform: scale(1.03);
        }
        .service-card .card-body {
            padding: 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .service-card .card-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.3;
        }
        .service-card .card-body p {
            font-size: 15px;
            color: var(--color-text-muted);
            line-height: 1.75;
            margin-bottom: 16px;
            flex: 1;
        }
        .service-card .card-body .badge {
            align-self: flex-start;
        }

        /* Process Timeline */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 24px;
        }
        .process-step {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            padding: 28px 20px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-light);
            text-align: center;
            transition: all var(--transition-fast);
        }
        .process-step:hover {
            border-color: var(--color-accent);
            transform: translateY(-4px);
        }
        .process-step .step-number {
            font-family: var(--font-display);
            font-size: 40px;
            font-weight: 800;
            color: var(--color-accent);
            -webkit-text-stroke: 2px #B7D93E;
            margin-bottom: 12px;
            line-height: 1;
        }
        .process-step h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .process-step p {
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.6;
        }

        /* Filter Toolbar */
        .filter-toolbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            background: var(--color-surface);
            border-radius: var(--radius-card);
            padding: 18px 24px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-light);
            margin-bottom: 32px;
        }
        .filter-tabs {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .filter-tab {
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-muted);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .filter-tab:hover {
            border-color: var(--color-accent);
            color: var(--color-text);
        }
        .filter-tab.active {
            background-color: var(--color-primary);
            color: var(--color-accent);
            border-color: var(--color-primary);
        }
        .filter-sort {
            display: flex;
            gap: 8px;
        }
        .filter-sort-btn {
            padding: 8px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text-muted);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
        }
        .filter-sort-btn:hover {
            border-color: var(--color-accent);
            color: var(--color-text);
        }
        .filter-sort-btn.active {
            background-color: var(--color-accent);
            color: var(--color-primary);
            border-color: var(--color-accent);
            font-weight: 700;
        }

        /* Article List */
        .article-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .article-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-light);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }
        .article-card:hover {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-hover);
            transform: translateY(-5px);
        }
        .article-card .article-image {
            aspect-ratio: 16/7;
            overflow: hidden;
            background-color: #E8E6E0;
        }
        .article-card .article-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .article-card:hover .article-image img {
            transform: scale(1.04);
        }
        .article-card .article-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .article-card .article-date {
            font-size: 13px;
            color: var(--color-text-muted);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .article-card h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 10px;
        }
        .article-card p {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }
        .article-card .read-more {
            font-size: 14px;
            font-weight: 700;
            color: var(--color-warning);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-fast);
        }
        .article-card .read-more:hover {
            color: var(--color-primary);
            gap: 10px;
        }

        /* Pagination */
        .pagination {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 40px;
            flex-wrap: wrap;
        }
        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 42px;
            height: 42px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            border: 1px solid var(--color-border);
            background: var(--color-surface);
            color: var(--color-text-muted);
            transition: all var(--transition-fast);
        }
        .pagination a:hover {
            border-color: var(--color-accent);
            color: var(--color-text);
        }
        .pagination .current {
            background-color: var(--color-accent);
            color: var(--color-primary);
            border-color: var(--color-accent);
            font-weight: 700;
        }

        /* Tag Cloud & Hot Entries */
        .tag-cloud-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .hot-entries-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .hot-entry-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 18px;
            background: var(--color-surface);
            border-radius: var(--radius-small);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
        }
        .hot-entry-item:hover {
            border-color: var(--color-accent);
            background-color: rgba(200, 255, 62, 0.04);
        }
        .hot-entry-item .hot-rank {
            font-family: var(--font-display);
            font-size: 24px;
            font-weight: 800;
            color: var(--color-warning);
            min-width: 36px;
        }
        .hot-entry-item .hot-info h4 {
            font-size: 15px;
            font-weight: 700;
            line-height: 1.3;
        }
        .hot-entry-item .hot-info span {
            font-size: 12px;
            color: var(--color-text-muted);
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-content: flex-start;
        }
        .tag-cloud a {
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            color: var(--color-text-muted);
            transition: all var(--transition-fast);
        }
        .tag-cloud a:hover {
            border-color: var(--color-accent);
            color: var(--color-text);
            background-color: rgba(200, 255, 62, 0.06);
        }

        /* Stats */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 32px 20px;
            border-radius: var(--radius-card);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition-fast);
        }
        .stat-item:hover {
            border-color: rgba(200, 255, 62, 0.3);
            background: rgba(255, 255, 255, 0.06);
        }
        .stat-item .stat-number {
            font-family: var(--font-display);
            font-size: 44px;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1;
            margin-bottom: 8px;
        }
        .stat-item .stat-label {
            font-size: 14px;
            color: #B8BCC4;
            font-weight: 500;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--color-surface);
            border-radius: var(--radius-small);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--color-accent);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 700;
            font-size: 16px;
            color: var(--color-text);
            transition: all var(--transition-fast);
            user-select: none;
        }
        .faq-question:hover {
            color: var(--color-warning);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            transition: transform var(--transition-smooth);
            font-size: 14px;
            color: var(--color-text-muted);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            color: var(--color-warning);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth);
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
        }
        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--color-text-muted);
        }

        /* CTA Form */
        .cta-section {
            background: var(--color-dark-bg);
            color: #F6F5F1;
        }
        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: start;
        }
        .cta-info h2 {
            font-size: clamp(28px, 3.5vw, 38px);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            color: #F6F5F1;
        }
        .cta-info p {
            font-size: 16px;
            line-height: 1.8;
            color: #B8BCC4;
            margin-bottom: 24px;
        }
        .cta-info .contact-detail {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .cta-info .contact-detail span {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 15px;
            color: #DDE0E5;
        }
        .cta-info .contact-detail i {
            color: var(--color-accent);
            width: 20px;
        }

        .cta-form {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            padding: 32px;
            box-shadow: var(--shadow-hover);
        }
        .cta-form h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 20px;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
        }
        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-small);
            font-size: 15px;
            color: var(--color-text);
            background-color: #FAF9F7;
            transition: all var(--transition-fast);
        }
        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(200, 255, 62, 0.15);
            background-color: var(--color-surface);
            outline: none;
        }
        .form-group input.error,
        .form-group textarea.error {
            border-color: var(--color-error);
            box-shadow: 0 0 0 3px rgba(229, 72, 77, 0.1);
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .form-success {
            display: none;
            padding: 14px 18px;
            border-radius: var(--radius-small);
            background-color: rgba(200, 255, 62, 0.12);
            border: 1px solid var(--color-accent);
            color: #4E6B00;
            font-size: 14px;
            font-weight: 600;
            margin-top: 16px;
        }
        .form-success.show {
            display: block;
        }

        /* Footer */
        .site-footer {
            background-color: var(--color-dark-bg);
            color: #B8BCC4;
            padding: 64px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h3 {
            font-size: 20px;
            font-weight: 800;
            color: #F6F5F1;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: #8E939C;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #F6F5F1;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: #8E939C;
            transition: all var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: #6E737C;
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .footer-links a {
            color: #6E737C;
            transition: all var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--color-accent);
        }

        /* Reveal animation */
        @media (prefers-reduced-motion: no-preference) {
            .reveal {
                opacity: 0;
                transform: translateY(28px);
                transition: opacity 0.5s ease-out, transform 0.5s ease-out;
            }
            .reveal.visible {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .cta-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: calc(100% + 8px);
                left: 16px;
                right: 16px;
                background: rgba(15, 17, 21, 0.95);
                backdrop-filter: blur(12px);
                border: 1px solid rgba(255, 255, 255, 0.12);
                border-radius: 20px;
                padding: 16px;
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
                box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                padding: 10px 14px;
            }
            .nav-toggle {
                display: block;
            }
            .nav-cta .btn-secondary {
                display: none;
            }
            .nav-capsule {
                padding: 8px 16px;
            }
            .section {
                padding: 64px 0;
            }
            .service-grid {
                grid-template-columns: 1fr;
            }
            .article-grid {
                grid-template-columns: 1fr;
            }
            .tag-cloud-grid {
                grid-template-columns: 1fr;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .process-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .coupon-mini-grid {
                grid-template-columns: 1fr;
            }
            .breadcrumb-section {
                padding-top: 100px;
            }
            .category-hero {
                padding: 32px 0 48px;
            }
            .category-hero-content h1 {
                font-size: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .filter-toolbar {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .process-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .category-hero-actions {
                flex-direction: column;
            }
            .coupon-main-card {
                padding: 24px 20px;
            }
            .cta-form {
                padding: 24px 20px;
            }
        }

/* roulang page: category6 */
:root {
            --color-primary: #15171C;
            --color-accent: #C8FF3E;
            --color-warning: #FF6A1A;
            --color-bg: #F6F5F1;
            --color-surface: #FFFFFF;
            --color-text: #16181D;
            --color-text-muted: #555B66;
            --color-border: #E6E4DE;
            --color-dark-bg: #0F1115;
            --color-error: #E5484D;
            --radius-card: 20px;
            --radius-button: 999px;
            --radius-small: 12px;
            --shadow-light: 0 1px 2px rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.06), 0 20px 40px rgba(0, 0, 0, 0.07);
            --transition-fast: 0.2s ease-out;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1240px;
            --font-sans: 'HarmonyOS Sans SC', 'Alibaba PuHuiTi', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-display: 'Space Grotesk', 'Inter', 'HarmonyOS Sans SC', 'Noto Sans SC', sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast), opacity var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 72px 0;
            position: relative;
        }
        .section--dark {
            background-color: var(--color-dark-bg);
            color: #F6F5F1;
        }
        .section--dark .section-title,
        .section--dark .section-desc {
            color: #F6F5F1;
        }
        .section--dark .section-desc {
            color: #B8BCC4;
        }
        .section--surface {
            background-color: var(--color-surface);
        }

        .section-title {
            font-size: clamp(26px, 3.5vw, 36px);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: var(--color-text);
        }
        .section-desc {
            font-size: 17px;
            line-height: 1.8;
            color: var(--color-text-muted);
            max-width: 720px;
            margin-bottom: 40px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1.5px;
            color: var(--color-warning);
            text-transform: uppercase;
            margin-bottom: 14px;
        }
        .section-tag::before {
            content: '';
            width: 24px;
            height: 2px;
            background-color: var(--color-warning);
            border-radius: 2px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 28px;
            border-radius: var(--radius-button);
            font-size: 15px;
            font-weight: 700;
            letter-spacing: 0.3px;
            transition: all var(--transition-fast);
            border: 2px solid transparent;
            white-space: nowrap;
            min-height: 52px;
        }
        .btn-primary {
            background-color: var(--color-accent);
            color: var(--color-primary);
            border-color: var(--color-accent);
        }
        .btn-primary:hover {
            background-color: var(--color-warning);
            border-color: var(--color-warning);
            color: var(--color-primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 255, 62, 0.25);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--color-primary);
            border-color: var(--color-border);
        }
        .btn-secondary:hover {
            border-color: var(--color-accent);
            color: var(--color-primary);
            background-color: rgba(200, 255, 62, 0.08);
        }
        .btn-dark {
            background-color: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }
        .btn-dark:hover {
            background-color: #2A2D35;
            border-color: #2A2D35;
            color: var(--color-accent);
        }
        .btn-outline-light {
            background-color: transparent;
            color: #F6F5F1;
            border-color: rgba(255, 255, 255, 0.3);
        }
        .btn-outline-light:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background-color: rgba(200, 255, 62, 0.08);
        }
        .btn-sm {
            padding: 10px 20px;
            min-height: 42px;
            font-size: 14px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.5px;
            line-height: 1.6;
        }
        .badge-accent {
            background-color: var(--color-accent);
            color: var(--color-primary);
        }
        .badge-warning {
            background-color: rgba(255, 106, 26, 0.12);
            color: var(--color-warning);
        }
        .badge-outline {
            background-color: transparent;
            border: 1px solid var(--color-border);
            color: var(--color-text-muted);
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 16px;
            z-index: 1000;
            padding: 0 24px;
            pointer-events: none;
        }
        .nav-capsule {
            pointer-events: auto;
            max-width: var(--container-max);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 10px 18px;
            background: rgba(15, 17, 21, 0.82);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 999px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .nav-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 800;
            letter-spacing: 0.3px;
            color: #fff;
            white-space: nowrap;
        }
        .nav-logo:hover {
            color: #fff;
        }
        .logo-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: var(--color-accent);
            box-shadow: 0 0 12px rgba(200, 255, 62, 0.7);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .nav-links a {
            color: #D5D7DB;
            font-size: 14px;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: 999px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--color-accent);
            background: rgba(200, 255, 62, 0.08);
        }
        .nav-links a.active {
            color: var(--color-accent);
            background: rgba(200, 255, 62, 0.12);
            font-weight: 700;
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .nav-cta .btn {
            min-height: 38px;
            padding: 8px 16px;
            font-size: 13px;
        }
        .nav-toggle {
            display: none;
            color: #fff;
            font-size: 22px;
            padding: 6px 10px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            transition: all var(--transition-fast);
        }
        .nav-toggle:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        /* Breadcrumb */
        .breadcrumb-wrap {
            padding-top: 40px;
            padding-bottom: 0;
            background-color: var(--color-bg);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-text-muted);
            flex-wrap: wrap;
            margin-bottom: 20px;
        }
        .breadcrumb a {
            color: var(--color-text-muted);
        }
        .breadcrumb a:hover {
            color: var(--color-accent);
        }
        .breadcrumb .sep {
            color: #B8BCC4;
        }
        .breadcrumb .current {
            color: var(--color-text);
            font-weight: 600;
        }

        /* Category Hero */
        .category-hero {
            padding: 32px 0 48px;
            background-color: var(--color-bg);
        }
        .category-hero .h1 {
            font-size: clamp(32px, 5vw, 48px);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.5px;
            margin-bottom: 18px;
            color: var(--color-text);
        }
        .category-hero .h1 .accent {
            color: var(--color-warning);
        }
        .category-hero-desc {
            font-size: 17px;
            line-height: 1.85;
            color: var(--color-text-muted);
            max-width: 760px;
        }

        /* Filter Bar */
        .filter-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding: 18px 22px;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-light);
            margin-bottom: 32px;
        }
        .filter-tabs {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .filter-tabs .filter-tab {
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-muted);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .filter-tabs .filter-tab:hover {
            border-color: var(--color-accent);
            color: var(--color-text);
        }
        .filter-tabs .filter-tab.active {
            background-color: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }
        .filter-sort {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-text-muted);
        }
        .filter-sort select {
            padding: 8px 14px;
            border-radius: 999px;
            border: 1px solid var(--color-border);
            font-size: 14px;
            color: var(--color-text);
            cursor: pointer;
            background-color: var(--color-bg);
            transition: border-color var(--transition-fast);
        }
        .filter-sort select:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(200, 255, 62, 0.15);
        }

        /* News List Layout */
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 32px;
            align-items: start;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .news-card {
            display: grid;
            grid-template-columns: 200px 1fr;
            gap: 20px;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-light);
            transition: all var(--transition-smooth);
        }
        .news-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(200, 255, 62, 0.5);
            transform: translateY(-4px);
        }
        .news-card-cover {
            width: 100%;
            height: 100%;
            min-height: 180px;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .news-card:hover .news-card-cover {
            transform: scale(1.03);
        }
        .news-card-body {
            padding: 22px 24px 22px 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 10px;
        }
        .news-card-date {
            font-size: 13px;
            font-weight: 500;
            color: var(--color-warning);
            letter-spacing: 0.5px;
        }
        .news-card-title {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--color-text);
        }
        .news-card-title a:hover {
            color: var(--color-warning);
        }
        .news-card-excerpt {
            font-size: 15px;
            line-height: 1.75;
            color: var(--color-text-muted);
        }
        .news-card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-fast);
        }
        .news-card-link:hover {
            color: var(--color-warning);
            gap: 10px;
        }

        /* Sidebar */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .sidebar-widget {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-light);
        }
        .sidebar-widget h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--color-text);
        }
        .sidebar-widget ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .sidebar-widget ul li a {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.6;
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }
        .sidebar-widget ul li a:hover {
            color: var(--color-warning);
        }
        .sidebar-widget ul li a::before {
            content: '›';
            font-weight: 700;
            color: var(--color-warning);
            flex-shrink: 0;
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud a {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text-muted);
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
        }
        .tag-cloud a:hover {
            background: var(--color-accent);
            border-color: var(--color-accent);
            color: var(--color-primary);
        }

        /* Pagination */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-top: 40px;
            flex-wrap: wrap;
        }
        .pagination .page-item {
            width: 42px;
            height: 42px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-muted);
            border: 1px solid var(--color-border);
            background: var(--color-surface);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .pagination .page-item:hover {
            border-color: var(--color-accent);
            color: var(--color-text);
        }
        .pagination .page-item.active {
            background: var(--color-accent);
            border-color: var(--color-accent);
            color: var(--color-primary);
        }
        .pagination .page-item.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* Deep Dive Section */
        .deep-dive-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .deep-dive-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 32px;
            box-shadow: var(--shadow-light);
            transition: all var(--transition-smooth);
        }
        .deep-dive-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(200, 255, 62, 0.5);
        }
        .deep-dive-card h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--color-text);
        }
        .deep-dive-card p {
            font-size: 15px;
            line-height: 1.85;
            color: var(--color-text-muted);
        }
        .deep-dive-card .dive-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(200, 255, 62, 0.15);
            color: #5A7A1A;
            margin-bottom: 12px;
        }

        /* Stats Strip */
        .stats-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-block {
            text-align: center;
            padding: 28px 20px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-card);
            transition: all var(--transition-smooth);
        }
        .stat-block:hover {
            border-color: rgba(200, 255, 62, 0.4);
            transform: translateY(-4px);
        }
        .stat-number {
            font-family: var(--font-display);
            font-size: clamp(32px, 4vw, 44px);
            font-weight: 800;
            color: var(--color-accent);
            letter-spacing: -1px;
            line-height: 1.1;
            margin-bottom: 8px;
        }
        .stat-label {
            font-size: 14px;
            color: #B8BCC4;
            letter-spacing: 0.5px;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
        }
        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: 16px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item.open {
            border-color: rgba(200, 255, 62, 0.6);
            box-shadow: var(--shadow-light);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            transition: all var(--transition-fast);
            text-align: left;
            width: 100%;
        }
        .faq-question:hover {
            color: var(--color-warning);
        }
        .faq-icon {
            flex-shrink: 0;
            font-size: 14px;
            color: var(--color-text-muted);
            transition: transform var(--transition-smooth);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--color-warning);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            padding: 0 22px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--color-text-muted);
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 22px 20px;
        }

        /* CTA */
        .cta-block {
            background: var(--color-dark-bg);
            border-radius: var(--radius-card);
            padding: 56px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(200, 255, 62, 0.08);
            pointer-events: none;
        }
        .cta-block h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 800;
            color: #F6F5F1;
            line-height: 1.3;
            margin-bottom: 8px;
        }
        .cta-block p {
            font-size: 16px;
            color: #B8BCC4;
            max-width: 500px;
        }
        .cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        /* Footer */
        .site-footer {
            background: var(--color-dark-bg);
            color: #B8BCC4;
            padding: 56px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand h3 {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: #9AA0A8;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: #9AA0A8;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: #9AA0A8;
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .footer-links a {
            color: #9AA0A8;
        }
        .footer-links a:hover {
            color: var(--color-accent);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .news-layout {
                grid-template-columns: 1fr;
            }
            .sidebar {
                flex-direction: row;
                flex-wrap: wrap;
            }
            .sidebar-widget {
                flex: 1 1 260px;
            }
            .deep-dive-grid {
                grid-template-columns: 1fr;
            }
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                top: 8px;
                padding: 0 12px;
            }
            .nav-capsule {
                flex-wrap: wrap;
                padding: 10px 14px;
                border-radius: 24px;
            }
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
                max-height: 0;
                overflow: hidden;
                transition: max-height var(--transition-smooth);
            }
            .nav-links.open {
                display: flex;
                max-height: 400px;
                padding-top: 8px;
            }
            .nav-links a {
                padding: 10px 14px;
                text-align: left;
                border-radius: 12px;
            }
            .nav-cta .btn {
                display: none;
            }
            .nav-cta .btn:first-child {
                display: inline-flex;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .news-card {
                grid-template-columns: 1fr;
            }
            .news-card-cover {
                min-height: 200px;
                max-height: 240px;
            }
            .news-card-body {
                padding: 16px 20px 20px;
            }
            .category-hero .h1 {
                font-size: 28px;
            }
            .filter-bar {
                flex-direction: column;
                align-items: flex-start;
            }
            .section {
                padding: 56px 0;
            }
            .cta-block {
                padding: 36px 24px;
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .stats-strip {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-block {
                padding: 20px 12px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .section {
                padding: 48px 0;
            }
            .category-hero .h1 {
                font-size: 24px;
            }
            .pagination .page-item {
                width: 36px;
                height: 36px;
                font-size: 13px;
            }
            .stats-strip {
                grid-template-columns: 1fr;
            }
            .sidebar-widget {
                flex: 1 1 100%;
            }
            .deep-dive-card {
                padding: 20px;
            }
            .cta-actions {
                flex-direction: column;
                width: 100%;
            }
            .cta-actions .btn {
                width: 100%;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                transition-duration: 0.01ms !important;
                animation-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }

/* roulang page: category5 */
:root {
            --color-primary: #15171C;
            --color-accent: #C8FF3E;
            --color-warning: #FF6A1A;
            --color-bg: #F6F5F1;
            --color-surface: #FFFFFF;
            --color-text: #16181D;
            --color-text-muted: #555B66;
            --color-border: #E6E4DE;
            --color-dark-bg: #0F1115;
            --color-error: #E5484D;
            --radius-card: 20px;
            --radius-button: 999px;
            --radius-small: 12px;
            --shadow-light: 0 1px 2px rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.06), 0 20px 40px rgba(0, 0, 0, 0.07);
            --transition-fast: 0.2s ease-out;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1240px;
            --font-sans: 'HarmonyOS Sans SC', 'Alibaba PuHuiTi', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-display: 'Space Grotesk', 'Inter', 'HarmonyOS Sans SC', 'Noto Sans SC', sans-serif;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast), opacity var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: 88px 0;
            position: relative;
        }
        .section--dark {
            background-color: var(--color-dark-bg);
            color: #F6F5F1;
        }
        .section--dark .section-title,
        .section--dark .section-desc {
            color: #F6F5F1;
        }
        .section--dark .section-desc {
            color: #B8BCC4;
        }
        .section-title {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: var(--color-text);
        }
        .section-desc {
            font-size: 17px;
            line-height: 1.8;
            color: var(--color-text-muted);
            max-width: 720px;
            margin-bottom: 48px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1.5px;
            color: var(--color-warning);
            text-transform: uppercase;
            margin-bottom: 16px;
        }
        .section-tag::before {
            content: '';
            width: 24px;
            height: 2px;
            background-color: var(--color-warning);
            border-radius: 2px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 28px;
            border-radius: var(--radius-button);
            font-size: 15px;
            font-weight: 700;
            letter-spacing: 0.3px;
            transition: all var(--transition-fast);
            border: 2px solid transparent;
            white-space: nowrap;
            min-height: 52px;
        }
        .btn-primary {
            background-color: var(--color-accent);
            color: var(--color-primary);
            border-color: var(--color-accent);
        }
        .btn-primary:hover {
            background-color: var(--color-warning);
            border-color: var(--color-warning);
            color: var(--color-primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 255, 62, 0.25);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--color-primary);
            border-color: var(--color-border);
        }
        .btn-secondary:hover {
            border-color: var(--color-accent);
            color: var(--color-primary);
            background-color: rgba(200, 255, 62, 0.08);
        }
        .btn-dark {
            background-color: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }
        .btn-dark:hover {
            background-color: #2A2D35;
            border-color: #2A2D35;
            color: var(--color-accent);
        }
        .btn-outline-light {
            background-color: transparent;
            color: #F6F5F1;
            border-color: rgba(255, 255, 255, 0.3);
        }
        .btn-outline-light:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background-color: rgba(200, 255, 62, 0.08);
        }
        .btn-sm {
            padding: 10px 20px;
            min-height: 42px;
            font-size: 14px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.5px;
            line-height: 1.6;
        }
        .badge-accent {
            background: rgba(200, 255, 62, 0.12);
            color: #5B7A1D;
        }
        .badge-warning {
            background: rgba(255, 106, 26, 0.1);
            color: #C44E0E;
        }
        .badge-dark {
            background: rgba(21, 23, 28, 0.08);
            color: #15171C;
        }
        /* Header / Navigation */
        .site-header {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 0 24px;
            pointer-events: none;
        }
        .nav-capsule {
            max-width: var(--container-max);
            margin: 0 auto;
            background: rgba(15, 17, 21, 0.72);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 999px;
            padding: 8px 14px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            pointer-events: auto;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.18);
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 17px;
            color: #F6F5F1;
            letter-spacing: 0.5px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .nav-logo:hover {
            color: var(--color-accent);
        }
        .logo-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: var(--color-accent);
            box-shadow: 0 0 12px rgba(200, 255, 62, 0.7);
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .nav-links::-webkit-scrollbar {
            display: none;
        }
        .nav-links a {
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 600;
            color: #C9CDD4;
            border-radius: 999px;
            white-space: nowrap;
            position: relative;
            transition: all var(--transition-fast);
        }
        .nav-links a:hover {
            color: var(--color-accent);
            background: rgba(200, 255, 62, 0.08);
        }
        .nav-links a.active {
            color: var(--color-accent);
            background: rgba(200, 255, 62, 0.1);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 3px;
            background-color: var(--color-accent);
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .nav-cta .btn {
            min-height: 42px;
            padding: 8px 18px;
            font-size: 13px;
        }
        .nav-cta .btn-secondary {
            color: #C9CDD4;
            border-color: rgba(255, 255, 255, 0.3);
        }
        .nav-cta .btn-secondary:hover {
            color: var(--color-accent);
            border-color: var(--color-accent);
        }
        .nav-cta .btn-primary {
            background-color: var(--color-accent);
            color: var(--color-primary);
            border-color: var(--color-accent);
        }
        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            transition: all var(--transition-fast);
        }
        .nav-toggle:hover {
            background: rgba(200, 255, 62, 0.2);
            color: var(--color-accent);
        }
        /* Mobile nav */
        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: 78px;
            left: 24px;
            right: 24px;
            z-index: 999;
            background: rgba(15, 17, 21, 0.95);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 24px;
            padding: 20px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            flex-direction: column;
            gap: 8px;
        }
        .mobile-nav-panel.open {
            display: flex;
        }
        .mobile-nav-panel a {
            padding: 12px 16px;
            border-radius: 14px;
            font-size: 15px;
            font-weight: 600;
            color: #E9EBEF;
            transition: all var(--transition-fast);
        }
        .mobile-nav-panel a:hover,
        .mobile-nav-panel a.active {
            background: rgba(200, 255, 62, 0.1);
            color: var(--color-accent);
        }
        /* Hero */
        .hero {
            min-height: 620px;
            padding: 180px 0 100px;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
            display: flex;
            align-items: center;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(130deg, rgba(15, 17, 21, 0.88) 0%, rgba(15, 17, 21, 0.55) 55%, rgba(21, 23, 28, 0.3) 100%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: #B8BCC4;
            margin-bottom: 28px;
        }
        .hero-breadcrumb a {
            color: #DDE0E5;
            transition: color var(--transition-fast);
        }
        .hero-breadcrumb a:hover {
            color: var(--color-accent);
        }
        .hero-breadcrumb i {
            font-size: 11px;
            color: #6B7078;
        }
        .hero h1 {
            font-size: clamp(38px, 6vw, 64px);
            font-weight: 800;
            line-height: 1.06;
            letter-spacing: -1px;
            color: #fff;
            max-width: 820px;
            margin-bottom: 24px;
        }
        .hero h1 .highlight {
            color: var(--color-accent);
            position: relative;
        }
        .hero p {
            font-size: 18px;
            line-height: 1.85;
            color: #D5D8DD;
            max-width: 640px;
            margin-bottom: 36px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .hero .btn-outline-light {
            border-color: rgba(255, 255, 255, 0.35);
        }
        /* breadcrumb bar */
        .breadcrumb-bar {
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border);
            padding: 18px 0;
        }
        .breadcrumb-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .breadcrumb-bar .breadcrumb-path {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-text-muted);
        }
        .breadcrumb-bar .breadcrumb-path a {
            color: var(--color-text-muted);
        }
        .breadcrumb-bar .breadcrumb-path a:hover {
            color: var(--color-warning);
        }
        .breadcrumb-bar .breadcrumb-path i {
            font-size: 10px;
            color: var(--color-border);
        }
        .breadcrumb-bar .breadcrumb-path .current {
            color: var(--color-text);
            font-weight: 600;
        }
        /* Section base */
        .section-subtitle {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-warning);
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 10px;
        }
        /* Data highlights */
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .data-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 32px 24px;
            text-align: center;
            transition: all var(--transition-fast);
        }
        .data-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--color-accent);
        }
        .data-number {
            font-family: var(--font-display);
            font-size: clamp(32px, 4vw, 44px);
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1;
            margin-bottom: 8px;
            letter-spacing: -1px;
        }
        .data-number .unit {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-warning);
            margin-left: 2px;
        }
        .data-label {
            font-size: 14px;
            color: var(--color-text-muted);
            font-weight: 500;
        }
        /* Service cards asymmetric */
        .service-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr;
            gap: 20px;
        }
        .service-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            transition: all var(--transition-fast);
            position: relative;
            overflow: hidden;
            min-height: 240px;
            display: flex;
            flex-direction: column;
        }
        .service-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--color-accent);
        }
        .service-card .service-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-small);
            background: var(--color-primary);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 20px;
            flex-shrink: 0;
        }
        .service-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--color-text);
        }
        .service-card p {
            font-size: 15px;
            color: var(--color-text-muted);
            line-height: 1.7;
            flex: 1;
        }
        .service-card--featured {
            background: var(--color-primary);
            color: #F6F5F1;
            border-color: var(--color-primary);
            grid-column: span 1;
            grid-row: span 2;
            min-height: 500px;
        }
        .service-card--featured .service-icon {
            background: rgba(200, 255, 62, 0.15);
            color: var(--color-accent);
        }
        .service-card--featured h3 {
            color: #fff;
            font-size: 24px;
        }
        .service-card--featured p {
            color: #B8BCC4;
        }
        .service-tag {
            display: inline-block;
            padding: 4px 10px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(200, 255, 62, 0.12);
            color: #B7F04A;
            margin-bottom: 16px;
            align-self: flex-start;
        }
        /* Scenario */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .scenario-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-small);
            padding: 22px 18px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
            display: flex;
            align-items: center;
            gap: 10px;
            transition: all var(--transition-fast);
        }
        .scenario-item:hover {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-light);
            transform: translateY(-2px);
        }
        .scenario-item i {
            color: var(--color-warning);
            font-size: 16px;
            flex-shrink: 0;
        }
        /* Case list area */
        .case-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 32px;
            align-items: start;
        }
        .case-toolbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 24px;
            padding: 14px 18px;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-small);
        }
        .case-toolbar .filter-group {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .case-toolbar .filter-btn {
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-muted);
            background: transparent;
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .case-toolbar .filter-btn:hover,
        .case-toolbar .filter-btn.active {
            background: var(--color-accent);
            color: var(--color-primary);
            border-color: var(--color-accent);
        }
        .case-toolbar .sort-group {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--color-text-muted);
        }
        .case-toolbar .sort-group select {
            padding: 6px 12px;
            border-radius: 8px;
            border: 1px solid var(--color-border);
            font-size: 13px;
            color: var(--color-text);
            background: var(--color-bg);
            cursor: pointer;
        }
        .case-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .case-card {
            display: flex;
            gap: 20px;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 20px;
            transition: all var(--transition-fast);
            overflow: hidden;
        }
        .case-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--color-accent);
        }
        .case-card-img {
            width: 200px;
            flex-shrink: 0;
            border-radius: var(--radius-small);
            overflow: hidden;
        }
        .case-card-img img {
            width: 100%;
            height: 140px;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .case-card:hover .case-card-img img {
            transform: scale(1.03);
        }
        .case-card-content {
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .case-card-date {
            font-size: 13px;
            color: var(--color-text-muted);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .case-card-date i {
            color: var(--color-warning);
            font-size: 12px;
        }
        .case-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .case-card h3 a {
            color: var(--color-text);
        }
        .case-card h3 a:hover {
            color: var(--color-warning);
        }
        .case-card p {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 12px;
            flex: 1;
        }
        .case-card .read-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-warning);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-fast);
        }
        .case-card .read-more:hover {
            color: var(--color-primary);
            gap: 10px;
        }
        /* Pagination */
        .pagination {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 36px;
        }
        .pagination a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-muted);
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
        }
        .pagination a:hover {
            border-color: var(--color-accent);
            color: var(--color-primary);
        }
        .pagination a.active {
            background: var(--color-accent);
            color: var(--color-primary);
            border-color: var(--color-accent);
        }
        .pagination a.disabled {
            opacity: 0.35;
            pointer-events: none;
        }
        /* Sidebar */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 100px;
        }
        .sidebar-widget {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
        }
        .sidebar-widget h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--color-border);
        }
        .sidebar-widget ul {
            list-style: none;
        }
        .sidebar-widget ul li {
            padding: 10px 0;
            border-bottom: 1px solid var(--color-border);
            font-size: 14px;
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-widget ul li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .sidebar-widget ul li i {
            color: var(--color-warning);
            font-size: 12px;
            flex-shrink: 0;
        }
        .sidebar-widget ul li a {
            color: var(--color-text-muted);
            transition: color var(--transition-fast);
        }
        .sidebar-widget ul li a:hover {
            color: var(--color-warning);
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud a {
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-text-muted);
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
        }
        .tag-cloud a:hover {
            background: var(--color-accent);
            color: var(--color-primary);
            border-color: var(--color-accent);
        }
        /* Process */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }
        .process-item {
            text-align: center;
            padding: 28px 18px;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            transition: all var(--transition-fast);
            position: relative;
        }
        .process-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--color-accent);
        }
        .process-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-primary);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-display);
            font-size: 18px;
            font-weight: 700;
            margin: 0 auto 16px;
        }
        .process-item h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-text);
        }
        .process-item p {
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.6;
        }
        /* Deep content */
        .deep-content {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 48px 40px;
        }
        .deep-content h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--color-text);
        }
        .deep-content p {
            font-size: 16px;
            line-height: 1.9;
            color: var(--color-text-muted);
            margin-bottom: 20px;
        }
        .deep-content p:last-child {
            margin-bottom: 0;
        }
        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-small);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--color-accent);
        }
        .faq-question {
            width: 100%;
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            cursor: pointer;
            transition: all var(--transition-fast);
            text-align: left;
        }
        .faq-question i {
            font-size: 16px;
            color: var(--color-text-muted);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--color-warning);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            padding: 0 24px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        .faq-answer p {
            font-size: 15px;
            color: var(--color-text-muted);
            line-height: 1.8;
        }
        /* CTA section */
        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }
        .cta-info h3 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .cta-info p {
            font-size: 16px;
            color: var(--color-text-muted);
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .cta-info ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .cta-info ul li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            color: var(--color-text);
        }
        .cta-info ul li i {
            color: var(--color-warning);
            font-size: 14px;
            margin-top: 4px;
            flex-shrink: 0;
        }
        .contact-form {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 36px 32px;
            box-shadow: var(--shadow-light);
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-bottom: 16px;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 8px;
        }
        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--color-border);
            border-radius: 10px;
            font-size: 15px;
            color: var(--color-text);
            background: var(--color-bg);
            transition: all var(--transition-fast);
        }
        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: #C8FF3E;
            box-shadow: 0 0 0 3px rgba(200, 255, 62, 0.15);
        }
        .form-group textarea {
            resize: vertical;
            min-height: 120px;
        }
        .form-error {
            font-size: 13px;
            color: var(--color-error);
            margin-top: 4px;
            display: none;
        }
        .form-success {
            display: none;
            padding: 12px 16px;
            border-radius: 10px;
            background: rgba(200, 255, 62, 0.12);
            color: #4B6B15;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        /* Footer */
        .site-footer {
            background: var(--color-dark-bg);
            color: #B8BCC4;
            padding: 64px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h3 {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: #9BA0A8;
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: #9BA0A8;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: #6B7078;
        }
        .footer-links {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-links a {
            color: #9BA0A8;
            font-size: 13px;
        }
        .footer-links a:hover {
            color: var(--color-accent);
        }
        .footer-links span {
            color: #4A4E55;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .section {
                padding: 72px 0;
            }
            .hero {
                min-height: 520px;
                padding: 150px 0 80px;
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-grid {
                grid-template-columns: 1fr 1fr;
            }
            .service-card--featured {
                grid-column: span 2;
                grid-row: span 1;
                min-height: auto;
            }
            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .case-layout {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
            }
            .sidebar-widget {
                flex: 1 1 200px;
            }
            .process-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 12px;
            }
            .cta-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 768px) {
            .nav-capsule {
                padding: 6px 10px;
                gap: 8px;
            }
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-cta .btn-secondary {
                display: none;
            }
            .hero {
                min-height: 480px;
                padding: 130px 0 64px;
            }
            .hero h1 {
                font-size: clamp(32px, 7vw, 44px);
            }
            .hero p {
                font-size: 16px;
            }
            .data-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .data-card {
                padding: 24px 16px;
            }
            .service-grid {
                grid-template-columns: 1fr;
            }
            .service-card--featured {
                grid-column: span 1;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .case-card {
                flex-direction: column;
            }
            .case-card-img {
                width: 100%;
                height: 180px;
            }
            .case-card-img img {
                height: 100%;
            }
            .process-grid {
                grid-template-columns: 1fr 1fr;
            }
            .deep-content {
                padding: 32px 22px;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .site-header {
                padding: 0 16px;
                top: 12px;
            }
            .nav-capsule {
                padding: 6px 8px;
                border-radius: 20px;
            }
            .nav-logo {
                font-size: 15px;
            }
            .logo-dot {
                width: 8px;
                height: 8px;
            }
            .nav-cta .btn-primary {
                padding: 6px 12px;
                font-size: 12px;
                min-height: 36px;
            }
            .section {
                padding: 56px 0;
            }
            .hero {
                min-height: 420px;
                padding: 120px 0 48px;
            }
            .hero h1 {
                font-size: 30px;
            }
            .hero p {
                font-size: 15px;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .data-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                flex-direction: column;
            }
            .sidebar-widget {
                flex: 1 1 auto;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .case-toolbar {
                flex-direction: column;
                align-items: flex-start;
            }
            .pagination a {
                width: 36px;
                height: 36px;
                font-size: 13px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .mobile-nav-panel {
                top: 68px;
                left: 16px;
                right: 16px;
                border-radius: 18px;
                padding: 16px;
            }
        }
        /* Reduced motion */
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                transition-duration: 0.01ms !important;
                animation-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #15171C;
            --color-accent: #C8FF3E;
            --color-warning: #FF6A1A;
            --color-bg: #F6F5F1;
            --color-surface: #FFFFFF;
            --color-text: #16181D;
            --color-text-muted: #555B66;
            --color-border: #E6E4DE;
            --color-dark-bg: #0F1115;
            --color-error: #E5484D;
            --radius-card: 20px;
            --radius-button: 999px;
            --radius-small: 12px;
            --shadow-light: 0 1px 2px rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.06), 0 20px 40px rgba(0, 0, 0, 0.07);
            --transition-fast: 0.2s ease-out;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1240px;
            --font-sans: 'HarmonyOS Sans SC', 'Alibaba PuHuiTi', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-display: 'Space Grotesk', 'Inter', 'HarmonyOS Sans SC', 'Noto Sans SC', sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast), opacity var(--transition-fast);
        }

        a:hover {
            color: var(--color-accent);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 88px 0;
            position: relative;
        }

        .section--dark {
            background-color: var(--color-dark-bg);
            color: #F6F5F1;
        }
        .section--dark .section-title,
        .section--dark .section-desc {
            color: #F6F5F1;
        }
        .section--dark .section-desc {
            color: #B8BCC4;
        }

        .section-title {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: var(--color-text);
        }

        .section-desc {
            font-size: 17px;
            line-height: 1.8;
            color: var(--color-text-muted);
            max-width: 720px;
            margin-bottom: 48px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1.5px;
            color: var(--color-warning);
            text-transform: uppercase;
            margin-bottom: 16px;
        }
        .section-tag::before {
            content: '';
            width: 24px;
            height: 2px;
            background-color: var(--color-warning);
            border-radius: 2px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 28px;
            border-radius: var(--radius-button);
            font-size: 15px;
            font-weight: 700;
            letter-spacing: 0.3px;
            transition: all var(--transition-fast);
            border: 2px solid transparent;
            white-space: nowrap;
            min-height: 52px;
        }

        .btn-primary {
            background-color: var(--color-accent);
            color: var(--color-primary);
            border-color: var(--color-accent);
        }
        .btn-primary:hover {
            background-color: var(--color-warning);
            border-color: var(--color-warning);
            color: var(--color-primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 255, 62, 0.25);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--color-primary);
            border-color: var(--color-border);
        }
        .btn-secondary:hover {
            border-color: var(--color-accent);
            color: var(--color-primary);
            background-color: rgba(200, 255, 62, 0.08);
        }

        .btn-dark {
            background-color: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }
        .btn-dark:hover {
            background-color: #2A2D35;
            border-color: #2A2D35;
            color: var(--color-accent);
        }

        .btn-outline-light {
            background-color: transparent;
            color: #F6F5F1;
            border-color: rgba(255, 255, 255, 0.3);
        }
        .btn-outline-light:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background-color: rgba(200, 255, 62, 0.08);
        }

        .btn-sm {
            padding: 10px 20px;
            min-height: 42px;
            font-size: 14px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.5px;
            line-height: 1.6;
        }
        .badge-accent {
            background-color: rgba(200, 255, 62, 0.15);
            color: #5A7D0A;
            border: 1px solid rgba(200, 255, 62, 0.4);
        }
        .badge-warning {
            background-color: rgba(255, 106, 26, 0.12);
            color: #C94E0A;
            border: 1px solid rgba(255, 106, 26, 0.3);
        }
        .badge-dark {
            background-color: rgba(21, 23, 28, 0.08);
            color: var(--color-primary);
            border: 1px solid var(--color-border);
        }

        /* Header / Nav */
        .site-header {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 0 24px;
        }

        .nav-capsule {
            max-width: var(--container-max);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            background: rgba(15, 17, 21, 0.72);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 999px;
            padding: 8px 14px;
            min-height: 64px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 18px;
            color: #F6F5F1;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .nav-logo:hover {
            color: var(--color-accent);
        }
        .logo-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: var(--color-accent);
            box-shadow: 0 0 12px rgba(200, 255, 62, 0.7);
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
        }
        .nav-links::-webkit-scrollbar {
            display: none;
        }
        .nav-links a {
            padding: 8px 14px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            color: #D6D9DE;
            white-space: nowrap;
            position: relative;
            transition: all var(--transition-fast);
        }
        .nav-links a:hover {
            color: var(--color-accent);
            background: rgba(200, 255, 62, 0.08);
        }
        .nav-links a.active {
            color: var(--color-accent);
            background: rgba(200, 255, 62, 0.12);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 16px;
            height: 3px;
            background-color: var(--color-accent);
            border-radius: 3px;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #F6F5F1;
            font-size: 18px;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.05);
            flex-shrink: 0;
        }
        .nav-toggle:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        /* Breadcrumb */
        .breadcrumb-section {
            padding-top: 120px;
            padding-bottom: 24px;
            background: var(--color-bg);
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb-nav a {
            color: var(--color-text-muted);
            transition: color var(--transition-fast);
        }
        .breadcrumb-nav a:hover {
            color: var(--color-warning);
        }
        .breadcrumb-nav .separator {
            color: var(--color-border);
        }
        .breadcrumb-nav .current {
            color: var(--color-text);
            font-weight: 600;
        }

        /* Category Hero */
        .cat-hero {
            padding: 32px 0 56px;
            background: var(--color-bg);
        }
        .cat-hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .cat-hero-content h1 {
            font-size: clamp(32px, 5vw, 52px);
            font-weight: 800;
            line-height: 1.1;
            color: var(--color-primary);
            letter-spacing: -1px;
            margin-bottom: 20px;
        }
        .cat-hero-content .hero-sub {
            font-size: 18px;
            line-height: 1.8;
            color: var(--color-text-muted);
            margin-bottom: 28px;
            max-width: 560px;
        }
        .cat-hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .cat-hero-stats {
            display: flex;
            gap: 32px;
            margin-top: 28px;
            flex-wrap: wrap;
        }
        .cat-hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .cat-hero-stat .stat-num {
            font-family: var(--font-display);
            font-size: 28px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.5px;
        }
        .cat-hero-stat .stat-label {
            font-size: 13px;
            color: var(--color-text-muted);
        }
        .cat-hero-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            position: relative;
        }
        .cat-hero-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 16/10;
        }
        .cat-hero-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(21, 23, 28, 0.2) 0%, rgba(200, 255, 62, 0.12) 100%);
            pointer-events: none;
        }

        /* Filter bar */
        .filter-bar-section {
            padding: 24px 0;
            background: var(--color-surface);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .filter-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .filter-tabs {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .filter-tab {
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-muted);
            border: 1px solid var(--color-border);
            background: var(--color-surface);
            transition: all var(--transition-fast);
        }
        .filter-tab:hover {
            border-color: var(--color-accent);
            color: var(--color-text);
        }
        .filter-tab.active {
            background: var(--color-accent);
            color: var(--color-primary);
            border-color: var(--color-accent);
        }
        .filter-sort {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
        }
        .filter-sort label {
            color: var(--color-text-muted);
            font-size: 13px;
        }
        .filter-sort select {
            padding: 8px 14px;
            border-radius: 999px;
            border: 1px solid var(--color-border);
            font-size: 13px;
            font-weight: 600;
            background: var(--color-surface);
            color: var(--color-text);
            cursor: pointer;
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23555B66' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            padding-right: 36px;
        }
        .filter-sort select:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(200, 255, 62, 0.15);
        }

        /* Tech solutions grid */
        .tech-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .tech-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-light);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }
        .tech-card:hover {
            transform: translateY(-4px);
            border-color: var(--color-accent);
            box-shadow: var(--shadow-hover);
        }
        .tech-card-image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
        }
        .tech-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .tech-card:hover .tech-card-image img {
            transform: scale(1.03);
        }
        .tech-card-image .card-badge {
            position: absolute;
            top: 16px;
            left: 16px;
        }
        .tech-card-body {
            padding: 24px 28px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .tech-card-body h3 {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--color-primary);
        }
        .tech-card-body p {
            font-size: 15px;
            line-height: 1.75;
            color: var(--color-text-muted);
            flex: 1;
        }
        .tech-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--color-text-muted);
            border-top: 1px solid var(--color-border);
            padding-top: 14px;
        }
        .tech-card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .card-link {
            font-weight: 700;
            color: var(--color-primary);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition-fast);
        }
        .card-link:hover {
            color: var(--color-warning);
        }

        /* Deep content section */
        .deep-content-section {
            background: var(--color-surface);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .deep-content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }
        .deep-content-text h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 16px;
            line-height: 1.35;
        }
        .deep-content-text p {
            font-size: 16px;
            line-height: 1.85;
            color: var(--color-text-muted);
            margin-bottom: 16px;
        }
        .deep-content-text p:last-child {
            margin-bottom: 0;
        }
        .tech-steps {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .tech-step {
            display: flex;
            gap: 16px;
            background: var(--color-bg);
            border-radius: var(--radius-small);
            padding: 20px 24px;
            border: 1px solid var(--color-border);
            transition: border-color var(--transition-fast);
        }
        .tech-step:hover {
            border-color: var(--color-accent);
        }
        .tech-step-num {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--color-primary);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 14px;
            flex-shrink: 0;
        }
        .tech-step-content h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 4px;
        }
        .tech-step-content p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--color-text-muted);
        }

        /* Scene section */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .scene-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            padding: 28px;
            border: 1px solid var(--color-border);
            transition: all var(--transition-smooth);
        }
        .scene-card:hover {
            transform: translateY(-4px);
            border-color: var(--color-accent);
            box-shadow: var(--shadow-hover);
        }
        .scene-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: rgba(200, 255, 62, 0.15);
            color: #5A7D0A;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 16px;
        }
        .scene-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 10px;
        }
        .scene-card p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--color-text-muted);
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-surface);
            border-radius: var(--radius-small);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: border-color var(--transition-fast);
        }
        .faq-item.open {
            border-color: var(--color-accent);
        }
        .faq-question {
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-weight: 700;
            font-size: 16px;
            color: var(--color-text);
            transition: color var(--transition-fast);
            user-select: none;
        }
        .faq-question:hover {
            color: var(--color-warning);
        }
        .faq-question .faq-icon {
            font-size: 14px;
            color: var(--color-text-muted);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--color-accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth);
        }
        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--color-text-muted);
        }

        /* CTA */
        .cta-section {
            background: var(--color-dark-bg);
            border-radius: var(--radius-card);
            overflow: hidden;
            position: relative;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            padding: 56px 0;
        }
        .cta-content h2 {
            font-size: clamp(24px, 3.5vw, 36px);
            font-weight: 800;
            color: #F6F5F1;
            line-height: 1.2;
            margin-bottom: 16px;
        }
        .cta-content p {
            font-size: 16px;
            line-height: 1.8;
            color: #B8BCC4;
            margin-bottom: 24px;
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .cta-form {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-card);
            padding: 28px;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .cta-form input,
        .cta-form select,
        .cta-form textarea {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 10px;
            padding: 12px 16px;
            color: #F6F5F1;
            font-size: 14px;
            transition: all var(--transition-fast);
            width: 100%;
        }
        .cta-form input::placeholder,
        .cta-form textarea::placeholder {
            color: #888C94;
        }
        .cta-form input:focus,
        .cta-form select:focus,
        .cta-form textarea:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(200, 255, 62, 0.15);
        }
        .cta-form select {
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888C94' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            padding-right: 36px;
        }
        .cta-form textarea {
            min-height: 80px;
            resize: vertical;
        }

        /* Sidebar */
        .main-with-sidebar {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 32px;
            align-items: start;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 100px;
        }
        .sidebar-widget {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            padding: 24px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-light);
        }
        .sidebar-widget h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-widget h3 i {
            color: var(--color-warning);
        }
        .sidebar-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .sidebar-list li {
            font-size: 14px;
            line-height: 1.6;
        }
        .sidebar-list a {
            color: var(--color-text-muted);
            transition: color var(--transition-fast);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-list a:hover {
            color: var(--color-warning);
        }
        .sidebar-list a .rank {
            font-family: var(--font-display);
            font-weight: 700;
            color: var(--color-warning);
            font-size: 13px;
            min-width: 20px;
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud a {
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            background: var(--color-bg);
            color: var(--color-text-muted);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
        }
        .tag-cloud a:hover {
            background: var(--color-accent);
            color: var(--color-primary);
            border-color: var(--color-accent);
        }

        /* Pagination */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-top: 40px;
            flex-wrap: wrap;
        }
        .page-btn {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            color: var(--color-text-muted);
            border: 1px solid var(--color-border);
            background: var(--color-surface);
            transition: all var(--transition-fast);
        }
        .page-btn:hover {
            border-color: var(--color-accent);
            color: var(--color-text);
        }
        .page-btn.active {
            background: var(--color-accent);
            color: var(--color-primary);
            border-color: var(--color-accent);
        }
        .page-btn.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* Footer */
        .site-footer {
            background: var(--color-dark-bg);
            color: #B8BCC4;
            padding: 56px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h3 {
            color: #F6F5F1;
            font-size: 22px;
            font-weight: 800;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: #888C94;
            max-width: 320px;
        }
        .footer-col h4 {
            color: #F6F5F1;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul a {
            font-size: 14px;
            color: #888C94;
            transition: color var(--transition-fast);
        }
        .footer-col ul a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
        }
        .footer-bottom .footer-links {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .footer-bottom a {
            color: #888C94;
            transition: color var(--transition-fast);
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        /* Reveal animation */
        .reveal {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }
        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .cat-hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .deep-content-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .main-with-sidebar {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: -1;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                top: 8px;
                padding: 0 12px;
            }
            .nav-capsule {
                padding: 6px 10px;
                min-height: 56px;
                gap: 10px;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: calc(100% + 8px);
                left: 0;
                right: 0;
                background: rgba(15, 17, 21, 0.92);
                backdrop-filter: blur(12px);
                border: 1px solid rgba(255, 255, 255, 0.12);
                border-radius: 20px;
                padding: 16px;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                padding: 12px 16px;
                border-radius: 12px;
                font-size: 15px;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-cta .btn {
                display: none;
            }
            .nav-cta .nav-toggle {
                display: flex;
            }
            .section {
                padding: 56px 0;
            }
            .tech-grid {
                grid-template-columns: 1fr;
            }
            .scene-grid {
                grid-template-columns: 1fr;
            }
            .cta-inner {
                grid-template-columns: 1fr;
                gap: 24px;
                padding: 32px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
            .cat-hero-content h1 {
                font-size: 28px;
            }
            .cat-hero-stats {
                gap: 20px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .section-title {
                font-size: 24px;
            }
            .tech-card-body {
                padding: 18px 20px 22px;
            }
            .cta-form {
                padding: 20px;
            }
            .filter-bar {
                flex-direction: column;
                align-items: flex-start;
            }
            .pagination {
                gap: 4px;
            }
            .page-btn {
                width: 36px;
                height: 36px;
                font-size: 12px;
            }
        }