/* roulang page: index */
:root {
            --primary: #7c3aed;
            --primary-dark: #5b21b6;
            --primary-light: #a78bfa;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --bg-dark: #0f0b1e;
            --bg-deep: #1a1433;
            --bg-card: #241b3d;
            --bg-soft: #2d2347;
            --surface: #2a1f42;
            --text-main: #f1eefe;
            --text-sub: #b6a8d9;
            --text-muted: #8b7cb0;
            --border: rgba(167, 139, 250, 0.18);
            --border-light: rgba(167, 139, 250, 0.3);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.25);
            --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.35);
            --shadow-primary: 0 8px 30px rgba(124, 58, 237, 0.35);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --container-w: 1240px;
            --header-h: 76px;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }

        input, textarea, select {
            font-family: inherit;
            font-size: inherit;
        }

        ul, ol {
            list-style: none;
        }

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

        .section {
            padding: 96px 0;
            position: relative;
        }

        .section-lg {
            padding: 120px 0;
        }

        .section-sm {
            padding: 60px 0;
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 32px;
            margin-bottom: 48px;
            flex-wrap: wrap;
        }

        .section-title {
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.02em;
            position: relative;
            padding-bottom: 16px;
        }

        .section-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 48px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }

        .section-title span {
            color: var(--accent);
        }

        .section-sub {
            color: var(--text-sub);
            font-size: 1.05rem;
            max-width: 600px;
            line-height: 1.7;
        }

        .section-link {
            color: var(--primary-light);
            font-weight: 600;
            font-size: 0.95rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: 50px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .section-link:hover {
            background: rgba(124, 58, 237, 0.1);
            border-color: var(--primary-light);
            transform: translateX(4px);
        }

        .section-link i {
            font-size: 0.8rem;
        }

        /* Header */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(15, 11, 30, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            height: var(--header-h);
            transition: var(--transition);
        }

        .header.scrolled {
            background: rgba(15, 11, 30, 0.95);
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            height: var(--header-h);
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
            font-weight: 800;
            font-size: 1.4rem;
            letter-spacing: -0.02em;
            color: var(--text-main);
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            box-shadow: var(--shadow-primary);
        }

        .search-box {
            flex: 1;
            max-width: 520px;
            position: relative;
            margin: 0 auto;
        }

        .search-box input {
            width: 100%;
            height: 44px;
            border-radius: 50px;
            border: 1px solid var(--border);
            background: rgba(255, 255, 255, 0.05);
            padding: 0 48px 0 20px;
            color: var(--text-main);
            font-size: 0.95rem;
            outline: none;
            transition: var(--transition);
        }

        .search-box input::placeholder {
            color: var(--text-muted);
        }

        .search-box input:focus {
            border-color: var(--primary-light);
            background: rgba(124, 58, 237, 0.08);
            box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.15);
        }

        .search-box .search-icon {
            position: absolute;
            right: 4px;
            top: 50%;
            transform: translateY(-50%);
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            transition: var(--transition);
        }

        .search-box .search-icon:hover {
            background: var(--primary-dark);
        }

        .nav {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: auto;
        }

        .nav-link {
            padding: 10px 18px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.93rem;
            color: var(--text-sub);
            display: flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-link i {
            font-size: 0.85rem;
        }

        .nav-link:hover {
            color: var(--text-main);
            background: rgba(124, 58, 237, 0.12);
        }

        .nav-link.active {
            color: var(--text-main);
            background: linear-gradient(135deg, rgba(124, 58, 237, 0.2), rgba(245, 158, 11, 0.15));
            box-shadow: inset 0 0 0 1px var(--border-light);
        }

        .nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: var(--text-main);
            padding: 10px 20px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.93rem;
            box-shadow: var(--shadow-primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 40px rgba(124, 58, 237, 0.45);
        }

        .mobile-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            border: 1px solid var(--border);
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.05);
            flex-shrink: 0;
        }

        /* Hero */
        .hero {
            position: relative;
            min-height: 720px;
            display: flex;
            align-items: center;
            padding-top: var(--header-h);
            overflow: hidden;
        }

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

        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(15, 11, 30, 0.94) 0%, rgba(15, 11, 30, 0.8) 50%, rgba(15, 11, 30, 0.5) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
            padding: 80px 0;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 8px 16px;
            border-radius: 50px;
            background: rgba(245, 158, 11, 0.12);
            border: 1px solid rgba(245, 158, 11, 0.3);
            color: var(--accent-light);
            font-weight: 600;
            font-size: 0.85rem;
            margin-bottom: 24px;
            animation: fadeInUp 0.8s ease both 0.1s;
        }

        .hero-badge i {
            font-size: 0.9rem;
            animation: pulse 2s infinite;
        }

        .hero h1 {
            font-size: clamp(2.5rem, 5vw, 4rem);
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -0.03em;
            margin-bottom: 24px;
            animation: fadeInUp 0.8s ease both 0.2s;
        }

        .hero h1 .gradient-text {
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-sub);
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 560px;
            animation: fadeInUp 0.8s ease both 0.3s;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            animation: fadeInUp 0.8s ease both 0.4s;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: var(--shadow-primary);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 16px 45px rgba(124, 58, 237, 0.5);
        }

        .btn-outline {
            border: 1px solid var(--border-light);
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.03);
            backdrop-filter: blur(10px);
        }

        .btn-outline:hover {
            border-color: var(--primary-light);
            background: rgba(124, 58, 237, 0.12);
            transform: translateY(-3px);
        }

        .hero-stats {
            display: flex;
            gap: 36px;
            margin-top: 48px;
            animation: fadeInUp 0.8s ease both 0.5s;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
        }

        .hero-stat .num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.2;
        }

        .hero-stat .num i {
            color: var(--accent);
            font-size: 1.2rem;
            margin-right: 4px;
        }

        .hero-stat .label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes pulse {
            0%, 100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.1);
            }
        }

        /* Quick Features */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }

        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: var(--border-light);
        }

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(124, 58, 237, 0.2), rgba(245, 158, 11, 0.15));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent);
            margin-bottom: 20px;
        }

        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .feature-card p {
            color: var(--text-sub);
            font-size: 0.93rem;
            line-height: 1.7;
        }

        /* Categories */
        .categories-section {
            background: var(--bg-deep);
            position: relative;
            overflow: hidden;
        }

        .categories-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .category-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
            position: relative;
            display: flex;
            flex-direction: column;
        }

        .category-card:hover {
            transform: translateY(-10px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }

        .category-card .cover {
            height: 180px;
            position: relative;
            overflow: hidden;
        }

        .category-card .cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .category-card:hover .cover img {
            transform: scale(1.08);
        }

        .category-card .cover::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, var(--bg-card), transparent 70%);
        }

        .category-card .count-badge {
            position: absolute;
            bottom: 16px;
            right: 16px;
            background: rgba(124, 58, 237, 0.9);
            color: #fff;
            font-size: 0.8rem;
            padding: 4px 12px;
            border-radius: 50px;
            font-weight: 600;
            backdrop-filter: blur(8px);
            z-index: 2;
        }

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

        .category-card .tag {
            align-self: flex-start;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 50px;
            background: rgba(245, 158, 11, 0.15);
            color: var(--accent-light);
            margin-bottom: 12px;
        }

        .category-card h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .category-card p {
            color: var(--text-sub);
            font-size: 0.92rem;
            line-height: 1.7;
            flex: 1;
            margin-bottom: 20px;
        }

        .category-card .link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary-light);
            font-weight: 600;
            font-size: 0.92rem;
            transition: var(--transition);
        }

        .category-card .link i {
            font-size: 0.8rem;
            transition: var(--transition);
        }

        .category-card .link:hover {
            color: var(--accent);
        }

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

        /* Latest Posts */
        .post-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .post-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            display: flex;
            align-items: center;
            gap: 24px;
            transition: var(--transition);
        }

        .post-item:hover {
            border-color: var(--primary-light);
            background: var(--bg-soft);
            transform: translateX(8px);
            box-shadow: var(--shadow-sm);
        }

        .post-item .rank {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary-light);
            min-width: 40px;
            text-align: center;
            font-style: italic;
        }

        .post-item .info {
            flex: 1;
            min-width: 0;
        }

        .post-item .meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 8px;
            flex-wrap: wrap;
        }

        .post-item .cat {
            font-size: 0.75rem;
            padding: 3px 10px;
            border-radius: 50px;
            background: rgba(124, 58, 237, 0.15);
            color: var(--primary-light);
            font-weight: 600;
        }

        .post-item .time {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .post-item h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
            line-height: 1.5;
            transition: var(--transition);
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
        }

        .post-item:hover h3 {
            color: var(--primary-light);
        }

        .post-item .excerpt {
            color: var(--text-sub);
            font-size: 0.9rem;
            line-height: 1.6;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
        }

        .post-item .arrow {
            color: var(--text-muted);
            font-size: 1rem;
            transition: var(--transition);
            flex-shrink: 0;
        }

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

        .empty-posts {
            background: var(--bg-card);
            border: 1px dashed var(--border-light);
            border-radius: var(--radius-md);
            padding: 48px 24px;
            text-align: center;
            color: var(--text-muted);
            font-size: 1rem;
        }

        /* Data Section */
        .data-section {
            background: url('/assets/images/backpic/back-2.png') center/cover fixed;
            position: relative;
            padding: 120px 0;
        }

        .data-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15, 11, 30, 0.92);
        }

        .data-section .container {
            position: relative;
            z-index: 2;
        }

        .data-section .section-head {
            text-align: center;
            justify-content: center;
        }

        .data-section .section-title::after {
            left: 50%;
            transform: translateX(-50%);
        }

        .data-section .section-sub {
            margin: 0 auto;
            text-align: center;
        }

        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-top: 48px;
        }

        .data-item {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            backdrop-filter: blur(12px);
            transition: var(--transition);
        }

        .data-item:hover {
            transform: translateY(-6px);
            border-color: var(--primary-light);
            background: rgba(124, 58, 237, 0.1);
        }

        .data-item .data-num {
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 8px;
            font-variant-numeric: tabular-nums;
        }

        .data-item .data-num i {
            font-size: 1.2rem;
            margin-right: 4px;
            vertical-align: middle;
        }

        .data-item .data-label {
            color: var(--text-sub);
            font-size: 0.95rem;
            font-weight: 600;
        }

        /* Process / Flow */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            counter-reset: process;
        }

        .process-step {
            text-align: center;
            padding: 36px 24px;
            border-radius: var(--radius-lg);
            background: var(--bg-card);
            border: 1px solid var(--border);
            position: relative;
            transition: var(--transition);
        }

        .process-step:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }

        .process-step .step-num {
            width: 56px;
            height: 56px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            box-shadow: var(--shadow-primary);
            position: relative;
        }

        .process-step .step-num::after {
            content: '';
            position: absolute;
            inset: -4px;
            border-radius: 50%;
            border: 2px solid rgba(124, 58, 237, 0.3);
            animation: pulse 2s infinite;
        }

        .process-step h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .process-step p {
            color: var(--text-sub);
            font-size: 0.92rem;
            line-height: 1.7;
        }

        /* Featured Content */
        .featured-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr;
            gap: 24px;
        }

        .featured-main {
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: flex-end;
            background: var(--bg-card);
            border: 1px solid var(--border);
        }

        .featured-main img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .featured-main::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 11, 30, 0.95) 0%, rgba(15, 11, 30, 0.3) 50%, transparent 100%);
        }

        .featured-main .content {
            position: relative;
            z-index: 2;
            padding: 32px;
        }

        .featured-main .tag {
            display: inline-block;
            padding: 4px 14px;
            background: var(--accent);
            color: var(--bg-dark);
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .featured-main h3 {
            font-size: 1.6rem;
            font-weight: 800;
            line-height: 1.35;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .featured-main p {
            color: var(--text-sub);
            font-size: 0.95rem;
            line-height: 1.7;
            max-width: 400px;
        }

        .featured-side {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .featured-card {
            border-radius: var(--radius-md);
            background: var(--bg-card);
            border: 1px solid var(--border);
            padding: 24px;
            flex: 1;
            display: flex;
            gap: 20px;
            align-items: center;
            transition: var(--transition);
        }

        .featured-card:hover {
            border-color: var(--primary-light);
            transform: translateX(4px);
        }

        .featured-card .thumb {
            width: 90px;
            height: 90px;
            border-radius: 12px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .featured-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .featured-card .meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 6px;
        }

        .featured-card h4 {
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.5;
        }

        /* CTA */
        .cta-section {
            padding: 100px 0;
            position: relative;
            background: url('/assets/images/backpic/back-3.png') center/cover;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(124, 58, 237, 0.85), rgba(15, 11, 30, 0.9));
        }

        .cta-box {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }

        .cta-box h2 {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 20px;
        }

        .cta-box p {
            font-size: 1.1rem;
            color: var(--text-sub);
            margin-bottom: 40px;
            line-height: 1.8;
        }

        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* FAQ */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }

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

        .faq-item summary {
            padding: 20px 24px;
            font-weight: 600;
            color: var(--text-main);
            font-size: 1.02rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            list-style: none;
            transition: var(--transition);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            color: var(--accent);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }

        .faq-item .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-sub);
            line-height: 1.8;
            font-size: 0.95rem;
            border-top: 1px solid var(--border);
            padding-top: 16px;
            margin-top: 0;
        }

        /* Footer */
        .footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border);
            padding: 80px 0 0;
            position: relative;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-brand .logo {
            margin-bottom: 16px;
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-social {
            display: flex;
            gap: 10px;
            margin-top: 24px;
        }

        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
            color: var(--text-sub);
        }

        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-4px);
        }

        .footer-heading {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--text-main);
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.92rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .footer-links a i {
            font-size: 0.6rem;
            color: var(--primary-light);
        }

        .footer-links a:hover {
            color: var(--text-main);
            transform: translateX(4px);
        }

        .footer-contact p {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 2;
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 24px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom p {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .footer-bottom .legal {
            display: flex;
            gap: 24px;
        }

        .footer-bottom .legal a {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .footer-bottom .legal a:hover {
            color: var(--text-main);
        }

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

            .categories-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .featured-grid {
                grid-template-columns: 1fr 1fr;
            }

            .featured-main {
                grid-column: span 2;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }

            .nav {
                display: none;
            }

            .mobile-toggle {
                display: flex;
                margin-left: auto;
            }

            .search-box {
                margin-left: auto;
            }

            .header-inner {
                gap: 16px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 64px 0;
            }

            .section-lg {
                padding: 80px 0;
            }

            .container {
                padding: 0 20px;
            }

            .hero {
                min-height: 600px;
            }

            .hero-content {
                padding: 60px 0;
            }

            .hero-stats {
                gap: 24px;
                flex-wrap: wrap;
            }

            .hero-stat .num {
                font-size: 1.5rem;
            }

            .features-grid {
                grid-template-columns: 1fr;
            }

            .categories-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .data-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .data-item {
                padding: 20px;
            }

            .data-item .data-num {
                font-size: 1.8rem;
            }

            .process-grid {
                grid-template-columns: 1fr;
            }

            .featured-grid {
                grid-template-columns: 1fr;
            }

            .featured-main {
                grid-column: span 1;
            }

            .featured-main .content {
                padding: 24px;
            }

            .featured-main h3 {
                font-size: 1.3rem;
            }

            .featured-card {
                flex-direction: column;
                text-align: center;
                align-items: flex-start;
            }

            .section-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }

            .footer-bottom .legal {
                justify-content: center;
            }

            .header-inner {
                gap: 8px;
            }

            .logo-text {
                font-size: 1.1rem;
                display: none;
            }

            .search-box {
                max-width: 100%;
            }

            .post-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

            .post-item .rank {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 2rem;
            }

            .hero-desc {
                font-size: 1rem;
            }

            .btn {
                padding: 12px 24px;
                font-size: 0.95rem;
            }

            .hero-stats {
                gap: 16px;
            }

            .hero-stat .num {
                font-size: 1.2rem;
            }

            .hero-stat .label {
                font-size: 0.75rem;
            }

            .data-grid {
                grid-template-columns: 1fr;
            }

            .section-title {
                font-size: 1.5rem;
            }

            .post-item {
                padding: 20px;
            }

            .post-item h3 {
                font-size: 0.98rem;
            }

            .search-box input {
                padding: 0 40px 0 14px;
                font-size: 0.85rem;
            }

            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }

            .mobile-toggle {
                width: 36px;
                height: 36px;
                font-size: 0.95rem;
            }

            .featured-main {
                min-height: 320px;
            }
        }

/* roulang page: article */
:root {
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --primary-light: #818cf8;
    --accent: #06b6d4;
    --accent-light: #22d3ee;
    --dark: #0b1120;
    --dark-2: #111a2e;
    --bg: #f4f6fb;
    --bg-soft: #eef1f8;
    --card: #ffffff;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --border-dark: #24344d;
    --radius: 16px;
    --radius-sm: 10px;
    --radius-lg: 24px;
    --shadow: 0 8px 24px rgba(79, 70, 229, 0.08);
    --shadow-lg: 0 18px 48px rgba(2, 6, 23, 0.16);
    --space: 88px;
    --max-width: 1220px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Inter", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: inherit;
    text-decoration: none;
}

button,
input {
    font-family: inherit;
    border: none;
    outline: none;
}

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
}

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 30px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    line-height: 1.2;
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid transparent;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 8px 24px rgba(79, 70, 229, 0.28);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(79, 70, 229, 0.35);
}

.btn-outline {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.35);
}

.btn-outline:hover {
    border-color: #fff;
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-2px);
}

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

.btn-light:hover {
    background: var(--primary-light);
    color: #fff;
    transform: translateY(-2px);
}

/* ===== 徽章 / 标签 ===== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: #fff;
    font-size: 0.82rem;
    font-weight: 600;
    backdrop-filter: blur(8px);
}

.badge-soft {
    background: rgba(79, 70, 229, 0.1);
    color: var(--primary);
    border: 1px solid rgba(79, 70, 229, 0.15);
}

.tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 14px;
    border-radius: 50px;
    background: var(--bg-soft);
    color: var(--text-muted);
    font-size: 0.78rem;
    font-weight: 500;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.tag:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

/* ===== Header ===== */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(11, 17, 32, 0.97);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: 0 4px 20px rgba(2, 6, 23, 0.3);
}

.header-top {
    display: flex;
    align-items: center;
    gap: 28px;
    padding-top: 16px;
    padding-bottom: 10px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: 0.02em;
    white-space: nowrap;
    flex-shrink: 0;
}

.logo-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: #fff;
    box-shadow: 0 6px 18px rgba(79, 70, 229, 0.4);
}

.search-wrap {
    flex: 1;
    max-width: 520px;
    position: relative;
}

.search-wrap input {
    width: 100%;
    padding: 12px 48px 12px 20px;
    border-radius: 50px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    font-size: 0.92rem;
    transition: var(--transition);
}

.search-wrap input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.search-wrap input:focus {
    border-color: var(--primary-light);
    background: rgba(255, 255, 255, 0.12);
    box-shadow: 0 0 0 4px rgba(129, 140, 248, 0.15);
}

.search-wrap .search-btn {
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%);
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.search-wrap .search-btn:hover {
    opacity: 0.9;
    transform: translateY(-50%) scale(1.05);
}

.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    font-size: 1.1rem;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.nav-toggle:hover {
    background: rgba(255, 255, 255, 0.16);
}

.nav {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 0 14px;
    overflow-x: auto;
    scrollbar-width: none;
}

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

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.65);
    padding: 8px 18px;
    border-radius: 50px;
    font-size: 0.92rem;
    font-weight: 500;
    white-space: nowrap;
    transition: var(--transition);
    border: 1px solid transparent;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
}

.nav-link.active {
    background: rgba(79, 70, 229, 0.2);
    color: #fff;
    border-color: rgba(129, 140, 248, 0.35);
}

/* ===== 文章 Hero ===== */
.article-hero {
    background: linear-gradient(135deg, rgba(11, 17, 32, 0.94), rgba(30, 27, 75, 0.88)), url('/assets/images/backpic/back-2.png') center / cover no-repeat;
    padding: 84px 0 72px;
    color: #fff;
    position: relative;
}

.article-hero::after {
    content: "";
    position: absolute;
    right: -120px;
    bottom: -140px;
    width: 420px;
    height: 420px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(34, 211, 238, 0.22), transparent 70%);
    pointer-events: none;
}

.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 30px;
    position: relative;
    z-index: 2;
}

.breadcrumbs a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: rgba(255, 255, 255, 0.75);
    transition: var(--transition);
}

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

.breadcrumbs .sep {
    color: rgba(255, 255, 255, 0.35);
}

.article-head {
    max-width: 860px;
    position: relative;
    z-index: 2;
}

.article-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 22px;
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.75);
}

.article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.article-head h1 {
    font-size: clamp(1.9rem, 4.5vw, 3rem);
    line-height: 1.25;
    font-weight: 800;
    margin-bottom: 18px;
    letter-spacing: -0.02em;
}

.article-desc {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.7);
    max-width: 720px;
    line-height: 1.7;
}

/* ===== 文章主体 ===== */
.section {
    padding: var(--space) 0;
}

.article-section {
    padding: 60px 0 80px;
}

.article-grid {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 36px;
    align-items: start;
}

.article-card {
    background: var(--card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: 44px;
    border: 1px solid rgba(226, 232, 240, 0.6);
}

.article-content {
    font-size: 1rem;
    line-height: 1.85;
    color: var(--text);
}

.article-content h2 {
    font-size: 1.6rem;
    font-weight: 700;
    margin: 2.2rem 0 1rem;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--bg-soft);
    color: var(--dark);
}

.article-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 1.8rem 0 0.8rem;
    color: var(--dark);
}

.article-content p {
    margin-bottom: 1.2rem;
}

.article-content ul,
.article-content ol {
    margin: 1.2rem 0 1.4rem 1.5rem;
}

.article-content li {
    margin-bottom: 0.55rem;
}

.article-content blockquote {
    margin: 1.8rem 0;
    padding: 18px 24px;
    border-left: 4px solid var(--primary);
    background: var(--bg-soft);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--text-muted);
    font-style: italic;
}

.article-content img {
    border-radius: var(--radius);
    margin: 1.6rem auto;
    box-shadow: var(--shadow);
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.6rem 0;
    font-size: 0.92rem;
}

.article-content table th,
.article-content table td {
    border: 1px solid var(--border);
    padding: 12px 16px;
    text-align: left;
}

.article-content table th {
    background: var(--bg-soft);
    font-weight: 600;
}

.article-footer {
    margin-top: 40px;
    padding-top: 28px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 18px;
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.article-prev-next {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.article-prev-next a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 50px;
    background: var(--bg-soft);
    color: var(--text);
    font-weight: 500;
    transition: var(--transition);
}

.article-prev-next a:hover {
    background: var(--primary);
    color: #fff;
}

/* ===== 侧边栏 ===== */
.article-sidebar {
    position: sticky;
    top: 130px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.sidebar-card {
    background: var(--card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 26px;
    border: 1px solid rgba(226, 232, 240, 0.6);
}

.sidebar-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-card h3 i {
    color: var(--primary);
}

.article-info-list {
    list-style: none;
}

.article-info-list li {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px dashed var(--border);
    font-size: 0.9rem;
}

.article-info-list li:last-child {
    border-bottom: none;
}

.article-info-list .label {
    color: var(--text-muted);
}

.article-info-list .value {
    font-weight: 600;
    color: var(--dark);
    text-align: right;
}

.sidebar-cats {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.side-cat {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    background: var(--bg-soft);
    color: var(--text);
    font-weight: 500;
    font-size: 0.92rem;
    transition: var(--transition);
    border: 1px solid transparent;
}

.side-cat i {
    width: 32px;
    height: 32px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(79, 70, 229, 0.1);
    color: var(--primary);
    font-size: 0.9rem;
    transition: var(--transition);
}

.side-cat:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    transform: translateX(4px);
}

.side-cat:hover i {
    background: rgba(255, 255, 255, 0.18);
    color: #fff;
}

/* ===== 内容未找到 ===== */
.not-found {
    text-align: center;
    padding: 60px 20px;
}

.not-found-icon {
    font-size: 3.5rem;
    color: var(--primary-light);
    margin-bottom: 20px;
    display: inline-block;
}

.not-found h2 {
    font-size: 1.8rem;
    color: var(--dark);
    margin-bottom: 14px;
}

.not-found p {
    color: var(--text-muted);
    margin-bottom: 28px;
}

/* ===== 相关推荐 ===== */
.related-section {
    background: var(--bg-soft);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.section-head {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 50px;
}

.section-tag {
    display: inline-block;
    padding: 6px 18px;
    border-radius: 50px;
    background: rgba(79, 70, 229, 0.1);
    color: var(--primary);
    font-size: 0.82rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.section-head h2 {
    font-size: clamp(1.7rem, 3vw, 2.4rem);
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 14px;
    letter-spacing: -0.02em;
}

.section-head p {
    color: var(--text-muted);
    font-size: 1rem;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.related-card {
    background: var(--card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid rgba(226, 232, 240, 0.6);
    transition: var(--transition);
    display: block;
}

.related-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(79, 70, 229, 0.25);
}

.related-card-img {
    height: 190px;
    overflow: hidden;
    position: relative;
}

.related-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.related-card:hover .related-card-img img {
    transform: scale(1.05);
}

.related-card-body {
    padding: 24px;
}

.related-card-body .badge-soft {
    margin-bottom: 12px;
}

.related-card-body h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
    line-height: 1.4;
}

.related-card-body p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.related-card-body .link-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
}

.related-card-body .link-more:hover {
    gap: 12px;
}

/* ===== FAQ ===== */
.faq-section {
    background: var(--bg);
}

.faq-list {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: var(--card);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
}

.faq-item[open] {
    border-color: rgba(79, 70, 229, 0.3);
    box-shadow: var(--shadow-lg);
}

.faq-item summary {
    padding: 22px 28px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--dark);
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    transition: var(--transition);
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: "\f078";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    color: var(--primary);
    transition: var(--transition);
    flex-shrink: 0;
}

.faq-item[open] summary::after {
    transform: rotate(180deg);
}

.faq-item summary:hover {
    background: var(--bg-soft);
}

.faq-item .faq-answer {
    padding: 0 28px 22px;
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.8;
}

/* ===== CTA ===== */
.cta-section {
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.cta-section::after {
    content: "";
    position: absolute;
    left: -80px;
    top: -80px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(79, 70, 229, 0.2), transparent 70%);
}

.cta-section::before {
    content: "";
    position: absolute;
    right: -60px;
    bottom: -100px;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(34, 211, 238, 0.16), transparent 70%);
}

.cta-box {
    position: relative;
    z-index: 2;
    text-align: center;
    color: #fff;
    max-width: 720px;
    margin: 0 auto;
}

.cta-box h2 {
    font-size: clamp(1.8rem, 3.4vw, 2.6rem);
    font-weight: 800;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.cta-box p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.05rem;
    margin-bottom: 36px;
}

.cta-btns {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
}

/* ===== Footer ===== */
.footer {
    background: var(--dark);
    color: rgba(255, 255, 255, 0.7);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 70px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
    gap: 48px;
    padding-bottom: 46px;
}

.footer-brand .logo {
    margin-bottom: 18px;
}

.footer-brand p {
    font-size: 0.92rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 22px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 1rem;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    transform: translateY(-3px);
}

.footer-heading {
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent-light);
    transform: translateX(4px);
}

.footer-contact p {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 12px;
}

.footer-contact i {
    color: var(--primary-light);
    width: 18px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 24px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.45);
}

.footer-bottom .legal {
    display: flex;
    gap: 20px;
}

.footer-bottom .legal a {
    transition: var(--transition);
}

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

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .article-grid {
        grid-template-columns: 1fr 300px;
        gap: 28px;
    }

    .related-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
    }
}

@media (max-width: 768px) {
    .header-top {
        flex-wrap: wrap;
        gap: 14px;
    }

    .search-wrap {
        order: 3;
        max-width: 100%;
        flex-basis: 100%;
    }

    .nav-toggle {
        display: flex;
        margin-left: auto;
    }

    .nav {
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
        padding: 10px 0 16px;
    }

    .nav.open {
        display: flex;
    }

    .nav-link {
        justify-content: flex-start;
        padding: 12px 16px;
    }

    .article-hero {
        padding: 64px 0 56px;
    }

    .article-grid {
        grid-template-columns: 1fr;
    }

    .article-sidebar {
        position: static;
    }

    .article-card {
        padding: 30px 24px;
    }

    .related-grid {
        grid-template-columns: 1fr;
    }

    .section {
        --space: 60px;
    }

    .cta-section {
        padding: 60px 0;
    }
}

@media (max-width: 520px) {
    .container {
        padding-left: 16px;
        padding-right: 16px;
    }

    .article-card {
        padding: 22px 16px;
        border-radius: 16px;
    }

    .article-head h1 {
        font-size: 1.7rem;
    }

    .article-content {
        font-size: 0.95rem;
    }

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

    .related-card-img {
        height: 160px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .cta-btns .btn {
        width: 100%;
    }

    .faq-item summary {
        padding: 18px 18px;
        font-size: 0.9rem;
    }

    .faq-item .faq-answer {
        padding: 0 18px 18px;
    }
}

/* roulang page: category1 */
:root {
        --clr-primary: #12e29a;
        --clr-primary-dark: #0bbf7d;
        --clr-secondary: #ff8b3d;
        --clr-accent: #7b5cff;
        --clr-bg: #f4f6fb;
        --clr-deep: #0a1628;
        --clr-deep-2: #101f38;
        --clr-card: #ffffff;
        --clr-text: #1c2737;
        --clr-text-gray: #5e6b80;
        --clr-border: #e4e8f0;
        --clr-white: #ffffff;
        --radius-sm: 10px;
        --radius-md: 16px;
        --radius-lg: 28px;
        --shadow-sm: 0 4px 14px rgba(10, 22, 40, .06);
        --shadow-md: 0 12px 30px rgba(10, 22, 40, .08);
        --shadow-lg: 0 28px 60px rgba(10, 22, 40, .14);
        --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        --transition: all .25s ease;
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: var(--font-sans);
        background: var(--clr-bg);
        color: var(--clr-text);
        line-height: 1.7;
        -webkit-font-smoothing: antialiased;
        text-rendering: optimizeLegibility;
    }

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

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

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

    ul,
    ol {
        list-style: none;
    }

    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 24px;
    }

    .btn {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 12px 24px;
        border-radius: 40px;
        font-weight: 600;
        border: none;
        cursor: pointer;
        transition: var(--transition);
        font-size: 15px;
        line-height: 1.4;
    }

    .btn:focus-visible,
    input:focus-visible,
    a:focus-visible {
        outline: 3px solid rgba(18, 226, 154, .45);
        outline-offset: 2px;
    }

    .btn-primary {
        background: var(--clr-primary);
        color: #0a1628;
    }

    .btn-primary:hover {
        background: #0aa873;
        color: #fff;
        transform: translateY(-2px);
        box-shadow: 0 8px 20px rgba(18, 226, 154, .35);
    }

    .btn-ghost {
        background: transparent;
        color: #fff;
        border: 1px solid rgba(255, 255, 255, .45);
    }

    .btn-ghost:hover {
        border-color: #fff;
        background: rgba(255, 255, 255, .12);
        transform: translateY(-2px);
    }

    .btn-outline {
        background: transparent;
        border: 2px solid var(--clr-primary-dark);
        color: var(--clr-primary-dark);
    }

    .btn-outline:hover {
        background: var(--clr-primary-dark);
        color: #fff;
        transform: translateY(-2px);
    }

    .btn-outline-light {
        background: transparent;
        border: 1px solid rgba(255, 255, 255, .5);
        color: #fff;
        padding: 8px 18px;
        font-size: 13px;
    }

    .btn-outline-light:hover {
        background: #fff;
        color: #0a1628;
    }

    .btn-sm {
        padding: 8px 18px;
        font-size: 14px;
    }

    .btn-lg {
        padding: 15px 30px;
        font-size: 16px;
    }

    /* Header */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(255, 255, 255, .93);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border-bottom: 1px solid var(--clr-border);
        box-shadow: var(--shadow-sm);
    }

    .header-main {
        display: flex;
        align-items: center;
        gap: 20px;
        padding: 14px 24px;
        max-width: 1200px;
        margin: 0 auto;
    }

    .logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 22px;
        font-weight: 800;
        color: var(--clr-deep);
        white-space: nowrap;
    }

    .logo-icon {
        width: 38px;
        height: 38px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
        color: #fff;
        border-radius: 12px;
        font-size: 18px;
        box-shadow: 0 4px 12px rgba(123, 92, 255, .3);
    }

    .header-search {
        flex: 1;
        max-width: 440px;
        position: relative;
        display: flex;
        align-items: center;
        background: #f2f4f8;
        border-radius: 40px;
        padding: 9px 12px 9px 42px;
        border: 1px solid transparent;
        transition: var(--transition);
    }

    .header-search:focus-within {
        background: #fff;
        border-color: var(--clr-primary);
        box-shadow: 0 0 0 4px rgba(18, 226, 154, .15);
    }

    .header-search .search-icon {
        position: absolute;
        left: 16px;
        color: #8a94a6;
        font-size: 15px;
        pointer-events: none;
    }

    .header-search input {
        flex: 1;
        background: transparent;
        border: none;
        font-size: 14px;
        color: var(--clr-text);
        min-width: 0;
    }

    .header-search input::placeholder {
        color: #8a94a6;
    }

    .header-search .btn-search {
        background: var(--clr-deep);
        color: #fff;
        padding: 8px 18px;
        border-radius: 30px;
        font-size: 13px;
        font-weight: 600;
        cursor: pointer;
        transition: var(--transition);
    }

    .header-search .btn-search:hover {
        background: var(--clr-primary-dark);
        color: #fff;
    }

    .header-right {
        display: flex;
        align-items: center;
        gap: 12px;
        margin-left: auto;
    }

    .nav-toggle {
        display: none;
        width: 42px;
        height: 42px;
        align-items: center;
        justify-content: center;
        background: var(--clr-deep);
        color: #fff;
        border-radius: 12px;
        font-size: 18px;
        cursor: pointer;
        transition: var(--transition);
    }

    .nav-toggle:hover {
        background: var(--clr-primary-dark);
    }

    .nav-wrap {
        background: var(--clr-deep);
        border-top: 1px solid rgba(255, 255, 255, .06);
    }

    .nav {
        display: flex;
        align-items: center;
        gap: 4px;
        padding: 8px 0;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

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

    .nav-link {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 10px 18px;
        border-radius: 30px;
        color: #cbd5e0;
        font-size: 15px;
        font-weight: 500;
        white-space: nowrap;
        transition: var(--transition);
    }

    .nav-link i {
        font-size: 14px;
        color: rgba(255, 255, 255, .5);
        transition: var(--transition);
    }

    .nav-link:hover {
        color: #fff;
        background: rgba(255, 255, 255, .08);
    }

    .nav-link:hover i {
        color: var(--clr-primary);
    }

    .nav-link.active {
        color: #0a1628;
        background: var(--clr-primary);
        font-weight: 700;
    }

    .nav-link.active i {
        color: #0a1628;
    }

    /* Hero */
    .page-hero {
        background-size: cover;
        background-position: center;
        position: relative;
        color: #fff;
        padding: 120px 0 80px;
    }

    .page-hero::before {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(120deg, rgba(10, 22, 40, .92) 30%, rgba(10, 22, 40, .65) 60%, rgba(10, 22, 40, .35));
    }

    .hero-content {
        position: relative;
        z-index: 1;
        max-width: 700px;
    }

    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(18, 226, 154, .15);
        border: 1px solid rgba(18, 226, 154, .4);
        color: #7ff0c3;
        padding: 6px 14px;
        border-radius: 30px;
        font-size: 13px;
        font-weight: 600;
        margin-bottom: 18px;
    }

    .hero-content h1 {
        font-size: 46px;
        line-height: 1.15;
        font-weight: 800;
        margin-bottom: 18px;
        letter-spacing: -1px;
    }

    .hero-content .lead {
        font-size: 17px;
        color: #cbd5e0;
        max-width: 560px;
        margin-bottom: 32px;
    }

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

    .hero-stats {
        position: relative;
        z-index: 1;
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
        margin-top: 60px;
    }

    .stat-card {
        background: rgba(255, 255, 255, .08);
        border: 1px solid rgba(255, 255, 255, .12);
        backdrop-filter: blur(8px);
        border-radius: 18px;
        padding: 22px 16px;
        text-align: center;
        transition: var(--transition);
    }

    .stat-card:hover {
        background: rgba(255, 255, 255, .14);
        transform: translateY(-4px);
    }

    .stat-card .num {
        font-size: 32px;
        font-weight: 800;
        color: var(--clr-primary);
        line-height: 1.2;
    }

    .stat-card .label {
        color: #cbd5e0;
        font-size: 14px;
        margin-top: 6px;
    }

    /* Section */
    .section {
        padding: 80px 0;
    }

    .section-soft {
        background: #eef1f7;
    }

    .section-dark {
        background: linear-gradient(135deg, var(--clr-deep), var(--clr-deep-2));
        color: #fff;
    }

    .section-head {
        max-width: 720px;
        margin-bottom: 44px;
    }

    .section-head.center {
        margin-left: auto;
        margin-right: auto;
        text-align: center;
    }

    .section-tag {
        color: var(--clr-primary-dark);
        font-weight: 700;
        letter-spacing: 1px;
        font-size: 13px;
        text-transform: uppercase;
        display: inline-block;
        margin-bottom: 10px;
    }

    .section-head h2 {
        font-size: 32px;
        font-weight: 800;
        color: var(--clr-text);
        margin-bottom: 10px;
        line-height: 1.3;
    }

    .section-head p {
        color: var(--clr-text-gray);
        font-size: 15px;
    }

    .section-head.light h2 {
        color: #fff;
    }

    .section-head.light p {
        color: #cbd5e0;
    }

    .section-more {
        text-align: center;
        margin-top: 40px;
    }

    /* Category cards */
    .cat-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }

    .cat-card {
        border-radius: 24px;
        overflow: hidden;
        position: relative;
        min-height: 290px;
        display: flex;
        align-items: flex-end;
        background-size: cover;
        background-position: center;
        color: #fff;
        padding: 28px;
        transition: transform .3s, box-shadow .3s;
    }

    .cat-card::before {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, transparent 30%, rgba(10, 22, 40, .9));
    }

    .cat-card:hover {
        transform: translateY(-8px);
        box-shadow: var(--shadow-lg);
    }

    .cat-card > * {
        position: relative;
        z-index: 1;
    }

    .cat-card h3 {
        font-size: 24px;
        font-weight: 800;
        margin-bottom: 6px;
    }

    .cat-card p {
        font-size: 14px;
        opacity: .92;
        margin-bottom: 14px;
    }

    .cat-link {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-weight: 600;
        border-bottom: 2px solid var(--clr-primary);
        padding-bottom: 4px;
        font-size: 14px;
    }

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

    .news-card {
        background: var(--clr-card);
        border-radius: 18px;
        overflow: hidden;
        box-shadow: var(--shadow-sm);
        transition: var(--transition);
        display: flex;
        flex-direction: column;
    }

    .news-card:hover {
        box-shadow: var(--shadow-md);
        transform: translateY(-4px);
    }

    .news-thumb {
        display: block;
        position: relative;
        aspect-ratio: 16 / 10;
        overflow: hidden;
    }

    .news-thumb img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform .4s;
    }

    .news-card:hover .news-thumb img {
        transform: scale(1.05);
    }

    .news-tag {
        position: absolute;
        left: 14px;
        top: 14px;
        background: var(--clr-primary);
        color: #0a1628;
        font-size: 12px;
        font-weight: 700;
        padding: 5px 12px;
        border-radius: 20px;
        box-shadow: 0 2px 8px rgba(0, 0, 0, .2);
    }

    .news-body {
        padding: 20px;
        display: flex;
        flex-direction: column;
        flex: 1;
    }

    .news-body h3 {
        font-size: 17px;
        font-weight: 700;
        line-height: 1.45;
        margin-bottom: 10px;
    }

    .news-body h3 a:hover {
        color: var(--clr-primary-dark);
    }

    .news-body p {
        font-size: 14px;
        color: var(--clr-text-gray);
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        margin-bottom: 14px;
        line-height: 1.6;
    }

    .news-meta {
        display: flex;
        gap: 16px;
        font-size: 12px;
        color: var(--clr-text-gray);
        margin-top: auto;
    }

    .news-meta i {
        margin-right: 4px;
        color: var(--clr-primary-dark);
    }

    /* Schedule */
    .schedule-list {
        display: flex;
        flex-direction: column;
        gap: 14px;
    }

    .schedule-item {
        display: flex;
        align-items: center;
        gap: 20px;
        background: rgba(255, 255, 255, .06);
        border: 1px solid rgba(255, 255, 255, .1);
        border-radius: 16px;
        padding: 16px 20px;
        transition: var(--transition);
    }

    .schedule-item:hover {
        background: rgba(255, 255, 255, .1);
        transform: translateX(6px);
    }

    .schedule-date {
        display: flex;
        flex-direction: column;
        align-items: center;
        min-width: 80px;
        padding-right: 20px;
        border-right: 1px solid rgba(255, 255, 255, .15);
        line-height: 1.3;
    }

    .schedule-date .day {
        font-size: 22px;
        font-weight: 800;
        color: var(--clr-primary);
    }

    .schedule-date .time {
        font-size: 13px;
        color: #cbd5e0;
        margin-top: 2px;
    }

    .schedule-info {
        flex: 1;
        min-width: 0;
    }

    .schedule-cat {
        font-size: 12px;
        color: var(--clr-secondary);
        font-weight: 600;
    }

    .schedule-info h4 {
        font-size: 16px;
        font-weight: 700;
        margin-top: 2px;
        color: #fff;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .schedule-hot {
        font-size: 13px;
        padding: 4px 14px;
        background: rgba(255, 255, 255, .1);
        border-radius: 20px;
        color: #cbd5e0;
        white-space: nowrap;
        border: 1px solid rgba(255, 255, 255, .08);
    }

    .schedule-item .btn {
        white-space: nowrap;
    }

    /* Feature */
    .feature-wrap {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 60px;
        align-items: center;
    }

    .feature-image {
        border-radius: 24px;
        overflow: hidden;
        box-shadow: var(--shadow-lg);
        position: relative;
    }

    .feature-image::after {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(45deg, rgba(123, 92, 255, .15), transparent 60%);
        pointer-events: none;
    }

    .feature-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform .5s;
    }

    .feature-wrap:hover .feature-image img {
        transform: scale(1.03);
    }

    .feature-content h2 {
        font-size: 30px;
        font-weight: 800;
        margin-bottom: 16px;
        line-height: 1.3;
    }

    .feature-content p {
        color: var(--clr-text-gray);
        margin-bottom: 20px;
    }

    .feature-list {
        display: flex;
        flex-direction: column;
        gap: 14px;
        margin: 24px 0 28px;
    }

    .feature-list li {
        display: flex;
        align-items: flex-start;
        gap: 12px;
        font-size: 15px;
        color: var(--clr-text);
    }

    .feature-list i {
        color: var(--clr-primary-dark);
        font-size: 18px;
        margin-top: 2px;
        flex-shrink: 0;
    }

    /* FAQ */
    .faq-list {
        max-width: 820px;
        margin: 0 auto;
        display: flex;
        flex-direction: column;
        gap: 14px;
    }

    .faq-item {
        background: #fff;
        border-radius: 16px;
        box-shadow: var(--shadow-sm);
        overflow: hidden;
        border: 1px solid var(--clr-border);
        transition: var(--transition);
    }

    .faq-item:hover {
        box-shadow: var(--shadow-md);
        border-color: #d0d8e8;
    }

    .faq-item summary {
        list-style: none;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 20px 24px;
        font-weight: 700;
        font-size: 16px;
        color: var(--clr-text);
        transition: var(--transition);
    }

    .faq-item summary::-webkit-details-marker {
        display: none;
    }

    .faq-item summary::after {
        content: "\f078";
        font-family: "Font Awesome 6 Free";
        font-weight: 900;
        color: var(--clr-primary-dark);
        transition: transform .3s;
        flex-shrink: 0;
    }

    .faq-item[open] summary::after {
        transform: rotate(180deg);
    }

    .faq-item[open] summary {
        color: var(--clr-primary-dark);
    }

    .faq-item p {
        padding: 0 24px 20px;
        color: var(--clr-text-gray);
        font-size: 15px;
        line-height: 1.7;
    }

    /* CTA */
    .cta-section {
        background: radial-gradient(ellipse at top left, rgba(123, 92, 255, .25), transparent 60%), linear-gradient(135deg, var(--clr-deep), var(--clr-deep-2));
        padding: 80px 0;
        position: relative;
        overflow: hidden;
    }

    .cta-section::before {
        content: "";
        position: absolute;
        width: 300px;
        height: 300px;
        background: var(--clr-primary);
        filter: blur(120px);
        opacity: .2;
        bottom: -80px;
        right: -60px;
        border-radius: 50%;
    }

    .cta-card {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 30px;
        flex-wrap: wrap;
        position: relative;
        z-index: 1;
    }

    .cta-text h2 {
        color: #fff;
        font-size: 30px;
        margin-bottom: 10px;
        line-height: 1.3;
    }

    .cta-text p {
        color: #cbd5e0;
        max-width: 420px;
    }

    .cta-form {
        display: flex;
        gap: 10px;
        flex-wrap: wrap;
    }

    .cta-form input {
        padding: 14px 18px;
        border-radius: 40px;
        width: 280px;
        background: rgba(255, 255, 255, .12);
        color: #fff;
        border: 1px solid rgba(255, 255, 255, .2);
        transition: var(--transition);
    }

    .cta-form input::placeholder {
        color: #cbd5e0;
    }

    .cta-form input:focus {
        border-color: var(--clr-primary);
        background: rgba(255, 255, 255, .18);
    }

    .cta-form .btn-secondary {
        background: var(--clr-secondary);
        color: #fff;
        padding: 14px 28px;
        border-radius: 40px;
        font-weight: 700;
        cursor: pointer;
        transition: var(--transition);
        display: inline-flex;
        align-items: center;
        gap: 8px;
    }

    .cta-form .btn-secondary:hover {
        background: #f06820;
        transform: translateY(-2px);
        box-shadow: 0 8px 24px rgba(255, 139, 61, .35);
    }

    /* Footer */
    .footer {
        background: #08101c;
        color: #8a94a6;
        padding: 60px 0 0;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
        gap: 40px;
        padding-bottom: 40px;
    }

    .footer-brand .logo {
        color: #fff;
    }

    .footer-brand p {
        font-size: 14px;
        margin-top: 16px;
        line-height: 1.7;
        max-width: 320px;
    }

    .footer-social {
        display: flex;
        gap: 10px;
        margin-top: 20px;
    }

    .footer-social a {
        width: 38px;
        height: 38px;
        border-radius: 10px;
        background: rgba(255, 255, 255, .08);
        display: flex;
        align-items: center;
        justify-content: center;
        color: #cbd5e0;
        transition: var(--transition);
    }

    .footer-social a:hover {
        background: var(--clr-primary);
        color: #0a1628;
        transform: translateY(-3px);
    }

    .footer-heading {
        color: #fff;
        font-size: 16px;
        font-weight: 700;
        margin-bottom: 16px;
    }

    .footer-links {
        display: flex;
        flex-direction: column;
        gap: 12px;
        font-size: 14px;
    }

    .footer-links a {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        color: #8a94a6;
        transition: var(--transition);
    }

    .footer-links a:hover {
        color: var(--clr-primary);
        transform: translateX(4px);
    }

    .footer-links a i {
        font-size: 12px;
        width: 18px;
        color: rgba(255, 255, 255, .4);
    }

    .footer-contact p {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 14px;
        margin-bottom: 10px;
    }

    .footer-contact i {
        color: var(--clr-primary);
        width: 20px;
    }

    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, .08);
        padding: 20px 0;
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 12px;
    }

    .footer-bottom p {
        font-size: 13px;
    }

    .legal {
        display: flex;
        gap: 20px;
    }

    .legal a {
        font-size: 13px;
        color: #8a94a6;
    }

    .legal a:hover {
        color: #fff;
    }

    /* Responsive */
    @media (max-width: 1024px) {
        .news-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .hero-stats {
            grid-template-columns: repeat(2, 1fr);
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
        }
        .feature-wrap {
            grid-template-columns: 1fr;
            gap: 40px;
        }
        .feature-image {
            max-height: 380px;
        }
    }

    @media (max-width: 768px) {
        .header-main {
            flex-wrap: wrap;
            gap: 12px;
        }
        .header-search {
            order: 3;
            flex-basis: 100%;
            max-width: none;
            margin-top: 6px;
        }
        .nav-toggle {
            display: flex;
            margin-left: auto;
        }
        .header-right {
            margin-left: 0;
        }
        .nav-wrap {
            display: none;
        }
        .nav-wrap.open {
            display: block;
        }
        .nav {
            flex-direction: column;
            align-items: stretch;
            gap: 0;
            padding: 8px 0;
        }
        .nav-link {
            padding: 12px 16px;
            border-bottom: 1px solid rgba(255, 255, 255, .06);
            border-radius: 0;
        }
        .nav-link.active {
            border-radius: 10px;
            margin: 4px 8px;
        }
        .cat-grid {
            grid-template-columns: 1fr;
        }
        .news-grid {
            grid-template-columns: 1fr;
        }
        .schedule-item {
            flex-wrap: wrap;
            gap: 12px;
        }
        .schedule-date {
            border-right: none;
            flex-direction: row;
            gap: 10px;
            min-width: auto;
            padding-right: 0;
        }
        .schedule-hot {
            order: 4;
        }
        .cta-card {
            flex-direction: column;
            align-items: flex-start;
        }
        .cta-form input {
            width: 100%;
        }
        .hero-content h1 {
            font-size: 34px;
        }
        .page-hero {
            padding: 80px 0 60px;
        }
        .section {
            padding: 56px 0;
        }
        .section-head h2 {
            font-size: 26px;
        }
        .section-head {
            margin-bottom: 32px;
        }
        .feature-content h2 {
            font-size: 26px;
        }
    }

    @media (max-width: 520px) {
        .container {
            padding: 0 16px;
        }
        .header-main {
            padding: 12px 16px;
        }
        .logo {
            font-size: 19px;
        }
        .logo-icon {
            width: 34px;
            height: 34px;
            font-size: 16px;
        }
        .header-right .btn-sm span {
            display: none;
        }
        .header-right .btn-sm {
            padding: 8px 12px;
        }
        .hero-stats {
            grid-template-columns: 1fr;
            gap: 12px;
            margin-top: 40px;
        }
        .stat-card {
            padding: 16px;
        }
        .hero-actions .btn {
            width: 100%;
            justify-content: center;
        }
        .hero-content h1 {
            font-size: 28px;
        }
        .hero-content .lead {
            font-size: 15px;
        }
        .section-head h2 {
            font-size: 23px;
        }
        .news-body h3 {
            font-size: 16px;
        }
        .schedule-item {
            flex-direction: column;
            align-items: flex-start;
        }
        .schedule-info h4 {
            font-size: 15px;
            white-space: normal;
        }
        .schedule-item .btn {
            width: 100%;
            justify-content: center;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 24px;
        }
        .footer-bottom {
            justify-content: center;
            text-align: center;
        }
        .cta-text h2 {
            font-size: 24px;
        }
    }

/* roulang page: category2 */
/* ===== Design Tokens ===== */
        :root {
            --primary: #f0b90b;
            --primary-dark: #d9a406;
            --primary-soft: rgba(240, 185, 11, .12);
            --primary-glow: rgba(240, 185, 11, .35);
            --accent: #00e0a6;
            --accent-soft: rgba(0, 224, 166, .12);
            --dark: #0b1320;
            --dark-2: #101d2e;
            --dark-3: #1a2a3e;
            --bg: #f5f7fb;
            --card: #ffffff;
            --text: #1b2b3a;
            --text-weak: #64748b;
            --border: #e7ebf2;
            --radius-xl: 22px;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 4px 14px rgba(11, 19, 32, .05);
            --shadow: 0 10px 32px rgba(11, 19, 32, .09);
            --shadow-hover: 0 20px 48px rgba(11, 19, 32, .15);
            --transition: .3s ease;
            --gap: 28px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            display: block;
            border: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition), background var(--transition), box-shadow var(--transition);
        }

        button,
        input {
            font: inherit;
            border: none;
            outline: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

        strong {
            font-weight: 700;
        }

        .container {
            width: min(1200px, 92%);
            margin: 0 auto;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            transition: all var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #0b1320;
            box-shadow: 0 6px 18px var(--primary-glow);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px var(--primary-glow);
        }

        .btn-outline {
            border-color: rgba(255, 255, 255, .35);
            color: #fff;
            background: rgba(255, 255, 255, .06);
            backdrop-filter: blur(6px);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(255, 255, 255, .1);
        }

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

        .btn-dark:hover {
            background: var(--dark-3);
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }

        .btn:focus-visible,
        a:focus-visible {
            outline: 3px solid var(--primary);
            outline-offset: 2px;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(11, 19, 32, .96);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, .07);
        }

        .header-top {
            display: flex;
            align-items: center;
            gap: 30px;
            padding: 16px 0;
        }

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

        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), #ff9500);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0b1320;
            font-size: 18px;
            box-shadow: 0 4px 14px var(--primary-glow);
        }

        .logo span:last-child {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: .5px;
        }

        .header-search {
            flex: 1;
            max-width: 560px;
            margin: 0 auto;
            position: relative;
        }

        .header-search form {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .16);
            border-radius: 999px;
            padding: 4px 4px 4px 18px;
            transition: border var(--transition), background var(--transition), box-shadow var(--transition);
        }

        .header-search form:focus-within {
            border-color: var(--primary);
            background: rgba(255, 255, 255, .14);
            box-shadow: 0 0 0 4px rgba(240, 185, 11, .15);
        }

        .header-search i {
            color: rgba(255, 255, 255, .65);
            font-size: 14px;
            margin-right: 10px;
        }

        .header-search input {
            flex: 1;
            background: transparent;
            color: #fff;
            font-size: 15px;
            padding: 8px 0;
        }

        .header-search input::placeholder {
            color: rgba(255, 255, 255, .5);
        }

        .header-search button {
            background: var(--primary);
            color: #0b1320;
            font-weight: 700;
            font-size: 14px;
            padding: 9px 22px;
            border-radius: 999px;
            transition: background var(--transition);
        }

        .header-search button:hover {
            background: var(--primary-dark);
        }

        .nav-toggle {
            display: none;
            color: #fff;
            font-size: 20px;
            padding: 8px 12px;
            border: 1px solid rgba(255, 255, 255, .2);
            border-radius: 8px;
            background: rgba(255, 255, 255, .06);
            transition: background var(--transition);
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, .14);
        }

        .header-nav-wrap {
            border-top: 1px solid rgba(255, 255, 255, .06);
            background: rgba(8, 14, 24, .5);
        }

        .nav {
            display: flex;
            align-items: center;
            gap: 6px;
            overflow-x: auto;
            scrollbar-width: none;
            -webkit-overflow-scrolling: touch;
        }

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

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 13px 20px;
            color: rgba(255, 255, 255, .75);
            font-size: 15px;
            font-weight: 500;
            border-radius: 8px;
            white-space: nowrap;
            border-bottom: 3px solid transparent;
            transition: color var(--transition), background var(--transition), border-color var(--transition);
        }

        .nav-link i {
            font-size: 14px;
            opacity: .8;
        }

        .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, .07);
        }

        .nav-link.active {
            color: var(--primary);
            font-weight: 700;
            border-bottom-color: var(--primary);
            background: rgba(240, 185, 11, .08);
        }

        /* ===== Hero / Banner ===== */
        .category-hero {
            position: relative;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 88px 0 72px;
            color: #fff;
            isolation: isolate;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(6, 12, 22, .92) 20%, rgba(6, 12, 22, .68) 60%, rgba(11, 19, 32, .5) 100%);
            z-index: -1;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            z-index: -1;
            background:
                radial-gradient(circle at 85% 20%, rgba(240, 185, 11, .15), transparent 42%),
                radial-gradient(circle at 20% 80%, rgba(0, 224, 166, .1), transparent 45%);
        }

        .cat-hero-inner {
            max-width: 760px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            margin-bottom: 20px;
        }

        .breadcrumb a {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            color: rgba(255, 255, 255, .6);
            transition: color var(--transition);
        }

        .breadcrumb a:hover {
            color: var(--primary);
        }

        .breadcrumb i {
            font-size: 12px;
            color: rgba(255, 255, 255, .35);
        }

        .category-hero h1 {
            font-size: clamp(34px, 5vw, 52px);
            font-weight: 800;
            letter-spacing: 1px;
            margin-bottom: 16px;
            line-height: 1.25;
        }

        .category-hero h1 span {
            color: var(--primary);
        }

        .category-hero .lead {
            font-size: 17px;
            line-height: 1.75;
            color: rgba(255, 255, 255, .78);
            max-width: 620px;
            margin-bottom: 26px;
        }

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

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 16px;
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .16);
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            color: rgba(255, 255, 255, .85);
            backdrop-filter: blur(6px);
            transition: all var(--transition);
        }

        .hero-tag:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #0b1320;
            transform: translateY(-2px);
        }

        .hero-tag i {
            font-size: 12px;
        }

        /* ===== Section ===== */
        .section {
            padding: 76px 0;
        }

        .section-alt {
            background: #fff;
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 38px;
        }

        .section-head h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: .3px;
            line-height: 1.4;
            position: relative;
            padding-left: 16px;
        }

        .section-head h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 6px;
            bottom: 6px;
            width: 4px;
            border-radius: 4px;
            background: linear-gradient(to bottom, var(--primary), var(--primary-dark));
        }

        .section-head .sub-title {
            color: var(--text-weak);
            font-size: 15px;
            margin-top: 4px;
        }

        .section-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-dark);
            padding: 8px 16px;
            border-radius: 999px;
            background: var(--primary-soft);
            transition: all var(--transition);
        }

        .section-more:hover {
            background: var(--primary);
            color: #0b1320;
            transform: translateX(3px);
        }

        /* ===== Filter Bar ===== */
        .filter-bar {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            padding: 14px 18px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            margin-bottom: 34px;
        }

        .filter-bar .filter-label {
            font-size: 14px;
            font-weight: 700;
            color: var(--dark);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .filter-bar .filter-label i {
            color: var(--primary);
        }

        .filter-chip {
            padding: 7px 16px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            background: var(--bg);
            border: 1px solid var(--border);
            color: var(--text);
            transition: all var(--transition);
        }

        .filter-chip:hover {
            border-color: var(--primary);
            color: var(--primary-dark);
        }

        .filter-chip.active {
            background: var(--dark);
            color: var(--primary);
            border-color: var(--dark);
        }

        /* ===== News Card ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .news-card {
            background: var(--card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }

        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(240, 185, 11, .3);
        }

        .news-cover {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }

        .news-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .news-card:hover .news-cover img {
            transform: scale(1.06);
        }

        .news-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 5px 12px;
            background: rgba(11, 19, 32, .82);
            backdrop-filter: blur(8px);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, .18);
        }

        .news-badge i {
            color: var(--primary);
            font-size: 10px;
        }

        .news-body {
            padding: 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
            gap: 10px;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: var(--text-weak);
        }

        .news-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .news-meta i {
            font-size: 11px;
            color: var(--primary);
        }

        .news-body h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--dark);
            transition: color var(--transition);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-body a:hover h3 {
            color: var(--primary-dark);
        }

        .news-body p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-footer {
            margin-top: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid var(--border);
        }

        .news-footer .tag {
            font-size: 12px;
            color: var(--primary-dark);
            background: var(--primary-soft);
            padding: 4px 10px;
            border-radius: 6px;
        }

        .news-footer .read-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-weak);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition), gap var(--transition);
        }

        .news-footer .read-more:hover {
            color: var(--primary-dark);
            gap: 7px;
        }

        /* ===== Schedule / Rankings ===== */
        .schedule-section {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .split-layout {
            display: grid;
            grid-template-columns: 1.2fr .8fr;
            gap: 40px;
            align-items: start;
        }

        .panel {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .panel-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            background: linear-gradient(135deg, var(--dark), var(--dark-2));
            color: #fff;
        }

        .panel-head h3 {
            font-size: 17px;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .panel-head h3 i {
            color: var(--primary);
        }

        .panel-head .panel-date {
            font-size: 13px;
            color: rgba(255, 255, 255, .6);
        }

        /* Timeline */
        .timeline {
            padding: 12px 24px 24px;
        }

        .timeline-item {
            position: relative;
            padding: 18px 0 18px 34px;
            border-bottom: 1px dashed var(--border);
        }

        .timeline-item:last-child {
            border-bottom: none;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: 6px;
            top: 26px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 0 4px var(--primary-soft);
        }

        .timeline-item::after {
            content: '';
            position: absolute;
            left: 11px;
            top: 44px;
            bottom: -6px;
            width: 2px;
            background: linear-gradient(to bottom, rgba(240, 185, 11, .3), rgba(240, 185, 11, 0));
        }

        .timeline-item:last-child::after {
            display: none;
        }

        .tl-time {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-dark);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 5px;
        }

        .tl-time i {
            font-size: 11px;
        }

        .tl-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.5;
            margin-bottom: 4px;
        }

        .tl-game {
            font-size: 13px;
            color: var(--text-weak);
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .tl-game i {
            font-size: 10px;
            color: var(--accent);
        }

        /* Rankings */
        .rank-list {
            padding: 10px 24px 24px;
        }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 15px 0;
            border-bottom: 1px solid var(--border);
            transition: background var(--transition);
        }

        .rank-item:last-child {
            border-bottom: none;
        }

        .rank-num {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 14px;
            background: var(--bg);
            color: var(--text-weak);
            flex-shrink: 0;
        }

        .rank-item:nth-child(1) .rank-num {
            background: linear-gradient(135deg, #ffd700, #f0a500);
            color: #0b1320;
            box-shadow: 0 3px 10px rgba(255, 215, 0, .4);
        }

        .rank-item:nth-child(2) .rank-num {
            background: linear-gradient(135deg, #c0c8d0, #9aa7b5);
            color: #0b1320;
        }

        .rank-item:nth-child(3) .rank-num {
            background: linear-gradient(135deg, #d2916e, #b0663d);
            color: #fff;
        }

        .rank-info {
            flex: 1;
        }

        .rank-info h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 2px;
        }

        .rank-info p {
            font-size: 13px;
            color: var(--text-weak);
        }

        .rank-hot {
            font-size: 13px;
            font-weight: 700;
            color: var(--primary-dark);
            background: var(--primary-soft);
            padding: 4px 12px;
            border-radius: 999px;
            white-space: nowrap;
        }

        .rank-item:hover {
            background: var(--bg);
            border-radius: 8px;
        }

        /* ===== Feature / Special ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .feature-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 300px;
            background-size: cover;
            background-position: center;
            isolation: isolate;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .feature-card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(8, 14, 24, .92) 30%, rgba(8, 14, 24, .2) 80%, rgba(8, 14, 24, .35) 100%);
            z-index: 1;
        }

        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }

        .feature-content {
            position: relative;
            z-index: 2;
            padding: 30px;
            color: #fff;
        }

        .feature-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: var(--primary);
            color: #0b1320;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 14px;
        }

        .feature-content h3 {
            font-size: 22px;
            font-weight: 800;
            line-height: 1.45;
            margin-bottom: 10px;
        }

        .feature-content p {
            font-size: 14px;
            color: rgba(255, 255, 255, .75);
            margin-bottom: 18px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .feature-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: gap var(--transition);
        }

        .feature-link:hover {
            gap: 12px;
        }

        /* ===== Stats ===== */
        .stats-section {
            background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%);
            padding: 68px 0;
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(240, 185, 11, .12), transparent 60%);
            top: -200px;
            right: -100px;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            position: relative;
            z-index: 1;
        }

        .stat-item {
            text-align: center;
            padding: 30px 20px;
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: var(--radius-lg);
            backdrop-filter: blur(6px);
            transition: all var(--transition);
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, .08);
            border-color: rgba(240, 185, 11, .3);
            transform: translateY(-4px);
        }

        .stat-icon {
            width: 46px;
            height: 46px;
            margin: 0 auto 14px;
            border-radius: 14px;
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 19px;
        }

        .stat-item strong {
            display: block;
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 6px;
        }

        .stat-item span {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg);
        }

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .faq-item[open] {
            border-color: rgba(240, 185, 11, .4);
            box-shadow: var(--shadow);
        }

        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
            cursor: pointer;
            list-style: none;
            transition: color var(--transition);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary:hover {
            color: var(--primary-dark);
        }

        .faq-item summary .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-dark);
            font-size: 13px;
            flex-shrink: 0;
            transition: transform var(--transition), background var(--transition);
        }

        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #0b1320;
        }

        .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.7;
        }

        .faq-answer p {
            padding-top: 4px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 68px 0;
        }

        .cta-box {
            background: linear-gradient(135deg, var(--dark), var(--dark-3));
            border-radius: var(--radius-xl);
            padding: 56px 44px;
            position: relative;
            overflow: hidden;
            text-align: center;
            color: #fff;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(240, 185, 11, .18), transparent 60%);
            top: -160px;
            left: -100px;
        }

        .cta-box::after {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 224, 166, .14), transparent 60%);
            bottom: -120px;
            right: -40px;
        }

        .cta-box>* {
            position: relative;
            z-index: 1;
        }

        .cta-box h2 {
            font-size: 30px;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .cta-box h2 i {
            color: var(--primary);
            margin-right: 6px;
        }

        .cta-box p {
            font-size: 15px;
            color: rgba(255, 255, 255, .72);
            max-width: 520px;
            margin: 0 auto 30px;
        }

        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 480px;
            margin: 0 auto;
            flex-wrap: wrap;
        }

        .cta-form input {
            flex: 1;
            min-width: 220px;
            padding: 13px 20px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, .18);
            background: rgba(255, 255, 255, .1);
            color: #fff;
            font-size: 15px;
            transition: border var(--transition), background var(--transition);
        }

        .cta-form input::placeholder {
            color: rgba(255, 255, 255, .5);
        }

        .cta-form input:focus {
            border-color: var(--primary);
            background: rgba(255, 255, 255, .14);
            box-shadow: 0 0 0 4px rgba(240, 185, 11, .15);
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--dark);
            color: rgba(255, 255, 255, .72);
            padding-top: 64px;
            border-top: 1px solid rgba(255, 255, 255, .06);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .footer .logo span:last-child {
            color: #fff;
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
            line-height: 1.7;
            margin: 18px 0;
            max-width: 260px;
        }

        .footer-social {
            display: flex;
            gap: 10px;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(255, 255, 255, .08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            color: rgba(255, 255, 255, .65);
            transition: all var(--transition);
        }

        .footer-social a:hover {
            background: var(--primary);
            color: #0b1320;
            transform: translateY(-3px);
        }

        .footer-heading {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-heading::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 3px;
            border-radius: 3px;
            background: var(--primary);
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            transition: all var(--transition);
        }

        .footer-links a:hover {
            color: var(--primary);
            transform: translateX(4px);
        }

        .footer-links a i {
            font-size: 11px;
            color: rgba(255, 255, 255, .35);
        }

        .footer-links a:hover i {
            color: var(--primary);
        }

        .footer-contact h3 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }

        .footer-contact p {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
            margin-bottom: 12px;
        }

        .footer-contact p i {
            width: 24px;
            color: var(--primary);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding: 24px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
        }

        .footer-bottom .legal {
            display: flex;
            align-items: center;
            gap: 18px;
        }

        .footer-bottom .legal a {
            color: rgba(255, 255, 255, .4);
            transition: color var(--transition);
        }

        .footer-bottom .legal a:hover {
            color: var(--primary);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 22px;
            }

            .split-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .feature-grid {
                grid-template-columns: 1fr;
            }

            .header-top {
                gap: 20px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 52px 0;
            }

            .header-top {
                flex-wrap: wrap;
                gap: 12px;
            }

            .header-search {
                order: 3;
                max-width: 100%;
                flex-basis: 100%;
            }

            .nav-toggle {
                display: block;
                margin-left: auto;
            }

            .header-nav-wrap {
                display: none;
            }

            .header-nav-wrap.open {
                display: block;
            }

            .nav {
                flex-direction: column;
                align-items: stretch;
                padding: 10px 0;
            }

            .nav-link {
                border-bottom: none;
                border-left: 3px solid transparent;
                border-radius: 0;
                padding: 13px 20px;
            }

            .nav-link.active {
                border-left-color: var(--primary);
                border-bottom: none;
            }

            .category-hero {
                padding: 56px 0 48px;
            }

            .category-hero h1 {
                font-size: 32px;
            }

            .category-hero .lead {
                font-size: 15px;
            }

            .section-head h2 {
                font-size: 23px;
            }

            .news-grid {
                grid-template-columns: 1fr;
            }

            .cta-box {
                padding: 40px 24px;
            }

            .cta-box h2 {
                font-size: 24px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                width: 90%;
            }

            .header-top {
                padding: 12px 0;
            }

            .logo span:last-child {
                font-size: 17px;
            }

            .header-search button {
                padding: 9px 14px;
                font-size: 13px;
            }

            .hero-tags {
                gap: 8px;
            }

            .hero-tag {
                padding: 6px 12px;
                font-size: 12px;
            }

            .filter-bar {
                padding: 12px;
                gap: 8px;
            }

            .filter-chip {
                padding: 6px 12px;
                font-size: 13px;
            }

            .timeline {
                padding: 12px 16px 16px;
            }

            .rank-list {
                padding: 10px 16px 16px;
            }

            .stat-item strong {
                font-size: 27px;
            }

            .cta-form input {
                min-width: 100%;
            }

            .cta-form .btn {
                width: 100%;
            }
        }

/* roulang page: category3 */
:root {
        --primary: #0d1117;
        --primary-light: #161b22;
        --accent: #00c9b1;
        --accent-strong: #00a88f;
        --accent-soft: rgba(0, 201, 177, .14);
        --bg: #f4f6f9;
        --surface: #ffffff;
        --text: #0d1117;
        --text-muted: #5c6b7a;
        --border: #dfe5ec;
        --radius: 16px;
        --radius-sm: 10px;
        --shadow: 0 4px 24px rgba(13, 17, 23, .07);
        --shadow-hover: 0 12px 36px rgba(13, 17, 23, .13);
        --space-section: 92px;
        --container: 1200px;
        --header-h: 72px;
        --transition: all .28s cubic-bezier(.4, 0, .2, 1);
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        font-size: 16px;
        line-height: 1.75;
        color: var(--text);
        background: var(--bg);
        -webkit-font-smoothing: antialiased;
    }

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

    a {
        text-decoration: none;
        color: inherit;
    }

    ul,
    ol {
        list-style: none;
    }

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

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

    /* ========== HEADER ========== */
    .header {
        background: var(--primary);
        color: #fff;
        position: sticky;
        top: 0;
        z-index: 100;
        box-shadow: 0 4px 20px rgba(13, 17, 23, .22);
    }

    .header-top {
        display: flex;
        align-items: center;
        gap: 28px;
        padding: 14px 0;
    }

    .logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 22px;
        font-weight: 800;
        letter-spacing: .5px;
        color: #fff;
        flex-shrink: 0;
    }

    .logo-icon {
        width: 40px;
        height: 40px;
        border-radius: 12px;
        background: linear-gradient(135deg, var(--accent), #06b6d4);
        display: grid;
        place-items: center;
        font-size: 18px;
        color: #fff;
        box-shadow: 0 0 0 4px rgba(0, 201, 177, .18);
    }

    .logo span:last-child {
        background: linear-gradient(90deg, #fff, #a7f3e6);
        -webkit-background-clip: text;
        background-clip: text;
        -webkit-text-fill-color: transparent;
    }

    .search-box {
        flex: 1;
        max-width: 420px;
        display: flex;
        align-items: center;
        background: rgba(255, 255, 255, .09);
        border: 1px solid rgba(255, 255, 255, .12);
        border-radius: 999px;
        padding: 0 16px;
        height: 44px;
        transition: var(--transition);
    }

    .search-box:hover,
    .search-box:focus-within {
        background: rgba(255, 255, 255, .14);
        border-color: rgba(0, 201, 177, .6);
        box-shadow: 0 0 0 3px rgba(0, 201, 177, .15);
    }

    .search-box i {
        color: rgba(255, 255, 255, .6);
        font-size: 15px;
        margin-right: 10px;
    }

    .search-box input {
        flex: 1;
        background: transparent;
        border: none;
        color: #fff;
        font-size: 14px;
    }

    .search-box input::placeholder {
        color: rgba(255, 255, 255, .5);
    }

    .nav-toggle {
        display: none;
        width: 42px;
        height: 42px;
        border-radius: 10px;
        background: rgba(255, 255, 255, .1);
        color: #fff;
        font-size: 18px;
        cursor: pointer;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
    }

    .nav-toggle:hover {
        background: rgba(255, 255, 255, .2);
    }

    .nav {
        display: flex;
        align-items: center;
        gap: 6px;
        padding: 10px 0 12px;
        border-top: 1px solid rgba(255, 255, 255, .08);
    }

    .nav-link {
        display: flex;
        align-items: center;
        gap: 8px;
        padding: 9px 18px;
        border-radius: 999px;
        font-size: 14px;
        font-weight: 600;
        color: rgba(255, 255, 255, .75);
        transition: var(--transition);
        white-space: nowrap;
    }

    .nav-link i {
        font-size: 14px;
        opacity: .75;
    }

    .nav-link:hover {
        color: #fff;
        background: rgba(255, 255, 255, .1);
    }

    .nav-link.active {
        color: #fff;
        background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 90%, #fff), var(--accent-strong));
        box-shadow: 0 4px 14px rgba(0, 201, 177, .35);
    }

    .nav-link.active i {
        opacity: 1;
    }

    /* ========== PAGE HERO ========== */
    .page-hero {
        position: relative;
        background: linear-gradient(135deg, #0d1117 0%, #161b22 55%, #0f2a2e 100%), url(/assets/images/backpic/back-1.png) center/cover no-repeat;
        background-blend-mode: overlay;
        color: #fff;
        padding: 84px 0 70px;
        overflow: hidden;
    }

    .page-hero::after {
        content: "";
        position: absolute;
        inset: 0;
        background: radial-gradient(ellipse at 80% 20%, rgba(0, 201, 177, .18), transparent 55%);
        pointer-events: none;
    }

    .page-hero .container {
        position: relative;
        z-index: 2;
    }

    .hero-eyebrow {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(0, 201, 177, .15);
        border: 1px solid rgba(0, 201, 177, .35);
        color: #5df2dc;
        font-size: 13px;
        font-weight: 600;
        padding: 6px 16px;
        border-radius: 999px;
        margin-bottom: 20px;
        letter-spacing: 1px;
    }

    .page-hero h1 {
        font-size: 48px;
        line-height: 1.2;
        font-weight: 800;
        margin-bottom: 14px;
        letter-spacing: 1px;
    }

    .page-hero h1 span {
        background: linear-gradient(90deg, #00c9b1, #7dd3fc);
        -webkit-background-clip: text;
        background-clip: text;
        -webkit-text-fill-color: transparent;
    }

    .page-hero p {
        font-size: 17px;
        color: rgba(255, 255, 255, .75);
        max-width: 560px;
        margin-bottom: 30px;
    }

    .hero-search {
        display: flex;
        max-width: 480px;
        background: rgba(255, 255, 255, .1);
        border: 1px solid rgba(255, 255, 255, .15);
        border-radius: 999px;
        overflow: hidden;
        backdrop-filter: blur(8px);
    }

    .hero-search input {
        flex: 1;
        padding: 14px 22px;
        background: transparent;
        color: #fff;
        font-size: 15px;
        min-width: 0;
    }

    .hero-search input::placeholder {
        color: rgba(255, 255, 255, .5);
    }

    .hero-search button {
        padding: 0 26px;
        background: linear-gradient(135deg, #00c9b1, #00a88f);
        color: #fff;
        font-size: 15px;
        font-weight: 700;
        cursor: pointer;
        display: flex;
        align-items: center;
        gap: 8px;
        transition: var(--transition);
    }

    .hero-search button:hover {
        filter: brightness(1.1);
    }

    .hero-stats {
        display: flex;
        gap: 36px;
        margin-top: 36px;
        flex-wrap: wrap;
    }

    .hero-stat {
        display: flex;
        flex-direction: column;
    }

    .hero-stat strong {
        font-size: 30px;
        font-weight: 800;
        color: #fff;
        line-height: 1.2;
    }

    .hero-stat strong i {
        color: var(--accent);
        font-style: normal;
    }

    .hero-stat span {
        font-size: 13px;
        color: rgba(255, 255, 255, .55);
        margin-top: 2px;
    }

    /* ========== SECTION ========== */
    .section {
        padding: var(--space-section) 0;
    }

    .section-alt {
        background: var(--surface);
    }

    .section-head {
        text-align: center;
        max-width: 640px;
        margin: 0 auto 54px;
    }

    .section-head .tag {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: var(--accent-soft);
        color: var(--accent-strong);
        font-size: 13px;
        font-weight: 700;
        padding: 5px 14px;
        border-radius: 999px;
        margin-bottom: 14px;
        letter-spacing: .5px;
    }

    .section-head h2 {
        font-size: 34px;
        font-weight: 800;
        color: var(--text);
        line-height: 1.3;
        margin-bottom: 12px;
    }

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

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

    .category-card {
        background: var(--surface);
        border-radius: var(--radius);
        padding: 32px 26px;
        border: 1px solid var(--border);
        box-shadow: var(--shadow);
        transition: var(--transition);
        position: relative;
        overflow: hidden;
    }

    .category-card::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: linear-gradient(90deg, var(--accent), #06b6d4);
        opacity: 0;
        transition: var(--transition);
    }

    .category-card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-hover);
        border-color: rgba(0, 201, 177, .4);
    }

    .category-card:hover::before {
        opacity: 1;
    }

    .category-card .cat-icon {
        width: 54px;
        height: 54px;
        border-radius: 14px;
        background: var(--accent-soft);
        display: grid;
        place-items: center;
        font-size: 22px;
        color: var(--accent-strong);
        margin-bottom: 20px;
        transition: var(--transition);
    }

    .category-card:hover .cat-icon {
        background: linear-gradient(135deg, var(--accent), #06b6d4);
        color: #fff;
        transform: scale(1.05);
    }

    .category-card h3 {
        font-size: 19px;
        font-weight: 700;
        margin-bottom: 8px;
    }

    .category-card p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.65;
        margin-bottom: 16px;
    }

    .category-card .cat-meta {
        display: flex;
        align-items: center;
        font-size: 13px;
        color: var(--accent-strong);
        font-weight: 600;
        gap: 6px;
    }

    /* ========== POST CARDS ========== */
    .post-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 28px;
    }

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

    .post-card:hover {
        transform: translateY(-8px);
        box-shadow: var(--shadow-hover);
    }

    .post-cover {
        position: relative;
        height: 190px;
        overflow: hidden;
    }

    .post-cover img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform .5s ease;
    }

    .post-card:hover .post-cover img {
        transform: scale(1.06);
    }

    .post-cover .post-badge {
        position: absolute;
        top: 14px;
        left: 14px;
        background: rgba(13, 17, 23, .72);
        backdrop-filter: blur(6px);
        color: #fff;
        font-size: 12px;
        font-weight: 600;
        padding: 4px 12px;
        border-radius: 999px;
        border: 1px solid rgba(255, 255, 255, .18);
    }

    .post-body {
        padding: 22px 24px 24px;
        flex: 1;
        display: flex;
        flex-direction: column;
    }

    .post-body .post-tags {
        display: flex;
        gap: 8px;
        flex-wrap: wrap;
        margin-bottom: 12px;
    }

    .post-tag {
        font-size: 12px;
        font-weight: 600;
        color: var(--accent-strong);
        background: var(--accent-soft);
        border-radius: 999px;
        padding: 3px 12px;
        transition: var(--transition);
    }

    .post-tag:hover {
        background: var(--accent);
        color: #fff;
    }

    .post-body h3 {
        font-size: 18px;
        font-weight: 700;
        line-height: 1.5;
        margin-bottom: 8px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        transition: var(--transition);
    }

    .post-card:hover .post-body h3 {
        color: var(--accent-strong);
    }

    .post-body p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.6;
        margin-bottom: 16px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .post-meta {
        margin-top: auto;
        display: flex;
        align-items: center;
        gap: 14px;
        font-size: 13px;
        color: #8a9aa8;
        border-top: 1px solid var(--border);
        padding-top: 14px;
    }

    .post-meta i {
        margin-right: 4px;
    }

    /* ========== STEPS ========== */
    .steps-section {
        background: var(--primary);
        color: #fff;
        position: relative;
        overflow: hidden;
    }

    .steps-section::before {
        content: "";
        position: absolute;
        inset: 0;
        background: url(/assets/images/backpic/back-2.png) center/cover no-repeat;
        opacity: .12;
        pointer-events: none;
    }

    .steps-section .container {
        position: relative;
        z-index: 2;
    }

    .steps-section .section-head h2 {
        color: #fff;
    }

    .steps-section .section-head p {
        color: rgba(255, 255, 255, .65);
    }

    .steps-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
        counter-reset: step;
    }

    .step-card {
        background: rgba(255, 255, 255, .05);
        border: 1px solid rgba(255, 255, 255, .1);
        border-radius: var(--radius);
        padding: 30px 24px;
        transition: var(--transition);
        position: relative;
    }

    .step-card:hover {
        background: rgba(255, 255, 255, .1);
        border-color: rgba(0, 201, 177, .5);
        transform: translateY(-4px);
    }

    .step-num {
        width: 42px;
        height: 42px;
        border-radius: 12px;
        background: linear-gradient(135deg, var(--accent), #06b6d4);
        display: grid;
        place-items: center;
        font-size: 18px;
        font-weight: 800;
        color: #fff;
        margin-bottom: 18px;
        box-shadow: 0 6px 18px rgba(0, 201, 177, .3);
    }

    .step-card h3 {
        font-size: 18px;
        font-weight: 700;
        margin-bottom: 10px;
    }

    .step-card p {
        font-size: 14px;
        color: rgba(255, 255, 255, .65);
        line-height: 1.65;
    }

    .step-card .step-arrow {
        position: absolute;
        right: -14px;
        top: 32px;
        color: rgba(255, 255, 255, .4);
        font-size: 14px;
        z-index: 3;
    }

    /* ========== TAGS ========== */
    .tags-panel {
        max-width: 820px;
        margin: 0 auto;
        text-align: center;
    }

    .tags-cloud {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 12px;
    }

    .cloud-tag {
        padding: 8px 20px;
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 999px;
        font-size: 14px;
        font-weight: 600;
        color: var(--text);
        transition: var(--transition);
        box-shadow: 0 2px 8px rgba(13, 17, 23, .04);
    }

    .cloud-tag i {
        color: var(--accent-strong);
        margin-right: 6px;
        font-size: 12px;
    }

    .cloud-tag:hover {
        background: var(--accent);
        border-color: var(--accent);
        color: #fff;
        transform: translateY(-3px);
        box-shadow: 0 8px 20px rgba(0, 201, 177, .25);
    }

    .cloud-tag:hover i {
        color: #fff;
    }

    /* ========== FAQ ========== */
    .faq-list {
        max-width: 820px;
        margin: 0 auto;
    }

    .faq-item {
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: var(--radius-sm);
        margin-bottom: 14px;
        overflow: hidden;
        transition: var(--transition);
    }

    .faq-item:hover {
        border-color: rgba(0, 201, 177, .35);
        box-shadow: var(--shadow);
    }

    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 20px 24px;
        cursor: pointer;
        font-size: 16px;
        font-weight: 600;
        background: none;
        width: 100%;
        text-align: left;
        color: var(--text);
    }

    .faq-question i {
        color: var(--accent-strong);
        font-size: 14px;
        transition: var(--transition);
        flex-shrink: 0;
    }

    .faq-item.open .faq-question i {
        transform: rotate(180deg);
    }

    .faq-answer {
        padding: 0 24px;
        max-height: 0;
        overflow: hidden;
        transition: max-height .3s ease, padding .3s ease;
    }

    .faq-item.open .faq-answer {
        max-height: 240px;
        padding: 0 24px 20px;
    }

    .faq-answer p {
        font-size: 14px;
        color: var(--text-muted);
        line-height: 1.7;
        border-top: 1px solid var(--border);
        padding-top: 14px;
    }

    /* ========== CTA ========== */
    .cta-section {
        padding: 64px 0;
    }

    .cta-box {
        background: linear-gradient(135deg, #0d1117 0%, #12222a 100%);
        border-radius: 24px;
        padding: 54px 48px;
        position: relative;
        overflow: hidden;
        color: #fff;
        text-align: center;
    }

    .cta-box::before {
        content: "";
        position: absolute;
        inset: 0;
        background: radial-gradient(ellipse at 20% 20%, rgba(0, 201, 177, .2), transparent 45%);
        pointer-events: none;
    }

    .cta-box .container {
        position: relative;
        z-index: 2;
    }

    .cta-box h2 {
        font-size: 30px;
        font-weight: 800;
        margin-bottom: 12px;
    }

    .cta-box p {
        color: rgba(255, 255, 255, .7);
        font-size: 15px;
        max-width: 520px;
        margin: 0 auto 28px;
    }

    .cta-form {
        display: flex;
        max-width: 420px;
        margin: 0 auto;
        background: rgba(255, 255, 255, .1);
        border: 1px solid rgba(255, 255, 255, .15);
        border-radius: 999px;
        overflow: hidden;
        padding: 4px;
    }

    .cta-form input {
        flex: 1;
        padding: 12px 18px;
        background: transparent;
        color: #fff;
        font-size: 14px;
        min-width: 0;
    }

    .cta-form input::placeholder {
        color: rgba(255, 255, 255, .5);
    }

    .cta-form button {
        padding: 0 24px;
        background: linear-gradient(135deg, var(--accent), var(--accent-strong));
        border-radius: 999px;
        color: #fff;
        font-size: 14px;
        font-weight: 700;
        cursor: pointer;
        transition: var(--transition);
        white-space: nowrap;
    }

    .cta-form button:hover {
        filter: brightness(1.1);
        transform: scale(1.02);
    }

    /* ========== FOOTER ========== */
    .footer {
        background: var(--primary);
        color: rgba(255, 255, 255, .7);
        padding: 68px 0 0;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 1fr 1fr 1fr;
        gap: 44px;
        padding-bottom: 48px;
        border-bottom: 1px solid rgba(255, 255, 255, .08);
    }

    .footer-brand .logo {
        margin-bottom: 16px;
    }

    .footer-brand p {
        font-size: 14px;
        line-height: 1.7;
        color: rgba(255, 255, 255, .55);
        max-width: 290px;
    }

    .footer-social {
        display: flex;
        gap: 10px;
        margin-top: 18px;
    }

    .footer-social a {
        width: 38px;
        height: 38px;
        border-radius: 10px;
        background: rgba(255, 255, 255, .08);
        display: grid;
        place-items: center;
        color: rgba(255, 255, 255, .6);
        font-size: 15px;
        transition: var(--transition);
    }

    .footer-social a:hover {
        background: var(--accent);
        color: #fff;
        transform: translateY(-3px);
    }

    .footer-heading {
        font-size: 16px;
        font-weight: 700;
        color: #fff;
        margin-bottom: 18px;
    }

    .footer-links {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }

    .footer-links a {
        font-size: 14px;
        color: rgba(255, 255, 255, .6);
        transition: var(--transition);
        display: inline-flex;
        align-items: center;
        gap: 8px;
    }

    .footer-links a:hover {
        color: var(--accent);
        transform: translateX(4px);
    }

    .footer-links a i {
        font-size: 12px;
        opacity: .7;
    }

    .footer-contact p {
        font-size: 14px;
        color: rgba(255, 255, 255, .6);
        margin-bottom: 10px;
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .footer-contact p i {
        color: var(--accent);
        width: 16px;
    }

    .footer-bottom {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 26px 0;
        flex-wrap: wrap;
    }

    .footer-bottom p {
        font-size: 13px;
        color: rgba(255, 255, 255, .4);
    }

    .legal {
        display: flex;
        gap: 22px;
    }

    .legal a {
        font-size: 13px;
        color: rgba(255, 255, 255, .4);
        transition: var(--transition);
    }

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

    /* ========== RESPONSIVE ========== */
    @media (max-width: 1024px) {
        .category-grid {
            grid-template-columns: repeat(2, 1fr);
        }

        .post-grid {
            grid-template-columns: repeat(2, 1fr);
        }

        .steps-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .step-arrow {
            display: none;
        }

        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 34px;
        }

        .search-box {
            max-width: 300px;
        }
    }

    @media (max-width: 768px) {
        :root {
            --space-section: 64px;
        }

        .header-top {
            flex-wrap: wrap;
            gap: 14px;
            padding: 12px 0;
        }

        .nav-toggle {
            display: flex;
        }

        .nav {
            display: none;
            flex-direction: column;
            align-items: stretch;
            padding: 8px 0 14px;
            border-top: 1px solid rgba(255, 255, 255, .08);
            gap: 4px;
        }

        .nav.open {
            display: flex;
        }

        .nav-link {
            justify-content: flex-start;
            border-radius: 10px;
        }

        .search-box {
            order: 3;
            max-width: 100%;
            flex-basis: 100%;
        }

        .page-hero {
            padding: 56px 0 48px;
        }

        .page-hero h1 {
            font-size: 34px;
        }

        .page-hero p {
            font-size: 15px;
        }

        .hero-stats {
            gap: 22px;
        }

        .hero-stat strong {
            font-size: 24px;
        }

        .section-head h2 {
            font-size: 28px;
        }

        .category-grid {
            gap: 16px;
        }

        .post-grid {
            gap: 18px;
        }

        .steps-grid {
            grid-template-columns: 1fr;
        }

        .cta-box {
            padding: 40px 24px;
        }

        .cta-box h2 {
            font-size: 26px;
        }

        .cta-form {
            flex-direction: column;
            border-radius: 16px;
            background: transparent;
            border: none;
            gap: 10px;
        }

        .cta-form input {
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .15);
            border-radius: 12px;
            padding: 14px 18px;
        }

        .cta-form button {
            border-radius: 12px;
            padding: 14px;
        }

        .footer-grid {
            grid-template-columns: 1fr 1fr;
        }

        .footer-bottom {
            flex-direction: column;
            justify-content: center;
            text-align: center;
        }
    }

    @media (max-width: 520px) {
        .container {
            padding: 0 18px;
        }

        .category-grid,
        .post-grid {
            grid-template-columns: 1fr;
        }

        .hero-search {
            flex-direction: column;
            border-radius: 14px;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, .15);
        }

        .hero-search input {
            padding: 14px 18px;
            border-bottom: 1px solid rgba(255, 255, 255, .12);
        }

        .hero-search button {
            padding: 13px 18px;
            justify-content: center;
        }

        .hero-stats {
            gap: 14px;
        }

        .hero-stat {
            flex: 1;
            min-width: 80px;
        }

        .page-hero h1 {
            font-size: 30px;
        }

        .section-head h2 {
            font-size: 24px;
        }

        .post-cover {
            height: 180px;
        }

        .cta-box {
            padding: 32px 20px;
            border-radius: 18px;
        }

        .footer-grid {
            grid-template-columns: 1fr;
            gap: 28px;
        }

        .faq-question {
            padding: 16px 18px;
            font-size: 15px;
        }

        .faq-answer {
            padding: 0 18px;
        }

        .faq-item.open .faq-answer {
            padding: 0 18px 16px;
        }
    }