/* roulang page: index */
:root {
            --bg-dark: #12101A;
            --bg-deep: #0E0C14;
            --card-bg: #1C1824;
            --gradient: linear-gradient(135deg, #8B5CF6 0%, #16C8E8 100%);
            --gradient-reverse: linear-gradient(135deg, #16C8E8 0%, #8B5CF6 100%);
            --primary: #8B5CF6;
            --accent: #16C8E8;
            --amber: #FFB13D;
            --success: #34D399;
            --warning: #FF8A4C;
            --text-main: #F4F2F7;
            --text-sub: #ACA3B8;
            --border: rgba(255, 255, 255, 0.10);
            --border-light: rgba(255, 255, 255, 0.16);
            --radius: 20px;
            --radius-lg: 28px;
            --radius-sm: 14px;
            --shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.45);
            --shadow-primary: 0 8px 24px rgba(139, 92, 246, 0.35);
            --transition: 0.25s ease;
            --font-family: -apple-system, "SF Pro SC", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-main);
            background: radial-gradient(ellipse at 30% 0%, #18142A 0%, var(--bg-dark) 60%) no-repeat fixed, var(--bg-dark);
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s;
        }

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

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

        .grid-container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section-padding {
            padding: 100px 0;
        }

        .section-title {
            font-size: clamp(28px, 3vw, 38px);
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-sub);
            max-width: 600px;
            line-height: 1.75;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(18, 16, 26, 0.9);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }

        .site-header .grid-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-main);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        .brand i {
            font-size: 24px;
            background: var(--gradient);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .brand:hover {
            color: var(--text-main);
        }

        .site-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border-light);
            border-radius: 10px;
            color: var(--text-main);
            font-size: 18px;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
        }

        .nav-toggle:hover {
            border-color: var(--accent);
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-sub);
            transition: all 0.25s ease;
        }

        .nav-link i {
            font-size: 14px;
            opacity: 0.7;
        }

        .nav-link:hover {
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.04);
        }

        .nav-link.active {
            color: var(--text-main);
            background: rgba(139, 92, 246, 0.15);
            box-shadow: inset 0 -2px 0 var(--primary);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: 16px;
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            background: var(--gradient);
            box-shadow: var(--shadow-primary);
            margin-left: 8px;
            border: none;
            cursor: pointer;
            transition: all 0.25s ease;
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(139, 92, 246, 0.45);
            color: #fff;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: 180px 0 100px;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 30%, rgba(139, 92, 246, 0.18) 0%, transparent 60%), radial-gradient(ellipse at 20% 80%, rgba(22, 200, 232, 0.12) 0%, transparent 50%);
            pointer-events: none;
        }

        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(18, 16, 26, 0.85) 0%, rgba(18, 16, 26, 0.6) 40%, var(--bg-dark) 100%);
            pointer-events: none;
        }

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

        .hero-content {
            max-width: 600px;
        }

        .hero-content h1 {
            font-size: clamp(36px, 4.5vw, 52px);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .hero-content h1 .highlight {
            background: var(--gradient);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-subtitle {
            font-size: 18px;
            line-height: 1.75;
            color: var(--text-sub);
            margin-bottom: 36px;
            max-width: 520px;
        }

        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 48px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 16px 36px;
            border-radius: 14px;
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            background: var(--gradient);
            border: none;
            cursor: pointer;
            box-shadow: var(--shadow-primary);
            transition: all 0.25s ease;
            min-width: 150px;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(139, 92, 246, 0.5);
            color: #fff;
            filter: brightness(1.1);
        }

        .btn-primary:focus-visible {
            outline: 3px solid rgba(22, 200, 232, 0.4);
            outline-offset: 2px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 15px 32px;
            border-radius: 14px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.35);
            cursor: pointer;
            transition: all 0.25s ease;
            min-width: 140px;
        }

        .btn-secondary:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
        }

        .btn-secondary:focus-visible {
            outline: 3px solid rgba(22, 200, 232, 0.3);
            outline-offset: 2px;
        }

        .hero-stats {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
        }

        .stat-item {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .stat-number {
            font-size: 36px;
            font-weight: 800;
            background: var(--gradient);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.2;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-sub);
            letter-spacing: 1px;
        }

        .hero-visual {
            position: relative;
        }

        .hero-visual .cover-wrap {
            border-radius: 24px;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .hero-visual .cover-wrap img {
            width: 100%;
            height: 420px;
            object-fit: cover;
        }

        .hero-visual .cover-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(18, 16, 26, 0.6) 100%);
            border-radius: 24px;
        }

        .hero-visual .cover-badge {
            position: absolute;
            bottom: 20px;
            left: 20px;
            right: 20px;
            z-index: 3;
            background: rgba(18, 16, 26, 0.7);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 14px;
            padding: 14px 20px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .cover-badge .label {
            background: var(--amber);
            color: #1a1408;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 8px;
            white-space: nowrap;
        }

        .cover-badge .text {
            font-size: 14px;
            color: var(--text-main);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .hero-visual .glow {
            position: absolute;
            inset: -20px;
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.3) 0%, rgba(22, 200, 232, 0.2) 100%);
            filter: blur(40px);
            z-index: -1;
            border-radius: 40px;
        }

        /* ===== Benefits ===== */
        .benefits {
            padding: 100px 0;
            position: relative;
        }

        .benefits-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 48px;
            gap: 24px;
            flex-wrap: wrap;
        }

        .benefits-header .section-title {
            margin-bottom: 8px;
        }

        .link-all {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 12px;
            border: 1px solid var(--border-light);
            font-size: 14px;
            font-weight: 600;
            color: var(--text-sub);
            transition: all 0.25s ease;
        }

        .link-all:hover {
            color: var(--accent);
            border-color: var(--accent);
            transform: translateY(-2px);
        }

        .benefit-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow);
            position: relative;
            transition: all 0.25s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .benefit-card:hover {
            border-color: rgba(139, 92, 246, 0.5);
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .benefit-card.vip {
            border: 2px solid rgba(139, 92, 246, 0.6);
            background: linear-gradient(180deg, rgba(139, 92, 246, 0.06) 0%, var(--card-bg) 30%);
        }

        .benefit-card.vip::before {
            content: '';
            position: absolute;
            top: 0;
            left: 24px;
            right: 24px;
            height: 1px;
            background: var(--gradient);
        }

        .recommend-badge {
            position: absolute;
            top: -12px;
            right: 28px;
            background: var(--gradient);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 5px 16px;
            border-radius: 20px;
            box-shadow: var(--shadow-primary);
            letter-spacing: 0.5px;
        }

        .benefit-card h3 {
            font-size: 26px;
            font-weight: 800;
            margin-bottom: 6px;
        }

        .benefit-card .level-tag {
            font-size: 13px;
            color: var(--amber);
            font-weight: 600;
            margin-bottom: 20px;
        }

        .benefit-price {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 24px;
            color: var(--text-main);
        }

        .benefit-price span {
            font-size: 14px;
            font-weight: 400;
            color: var(--text-sub);
            margin-left: 4px;
        }

        .benefit-list {
            list-style: none;
            margin: 0 0 32px;
            flex: 1;
        }

        .benefit-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 0;
            font-size: 15px;
            color: var(--text-main);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

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

        .benefit-list li i.fa-check {
            color: var(--success);
            font-size: 14px;
        }

        .benefit-list li i.fa-xmark {
            color: rgba(255, 255, 255, 0.2);
            font-size: 14px;
        }

        .benefit-list li.disabled {
            color: rgba(255, 255, 255, 0.3);
        }

        .benefit-card .btn-primary,
        .benefit-card .btn-secondary {
            width: 100%;
        }

        /* ===== Levels ===== */
        .levels {
            padding: 100px 0;
            background: linear-gradient(180deg, transparent 0%, rgba(139, 92, 246, 0.04) 50%, transparent 100%);
        }

        .levels-header {
            text-align: center;
            margin-bottom: 64px;
        }

        .levels-header .section-title {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
        }

        .levels-header .section-subtitle {
            margin: 0 auto;
        }

        .level-cards {
            display: flex;
            align-items: flex-start;
            justify-content: center;
            gap: 28px;
            flex-wrap: wrap;
        }

        .level-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px;
            width: 320px;
            box-shadow: var(--shadow);
            position: relative;
            transition: all 0.25s ease;
        }

        .level-card.center {
            transform: translateY(-20px);
            border: 2px solid rgba(139, 92, 246, 0.5);
            box-shadow: var(--shadow-lg);
            padding: 44px 36px;
        }

        .level-card.center:hover {
            transform: translateY(-24px);
            box-shadow: 0 24px 56px rgba(0, 0, 0, 0.5);
        }

        .level-card:hover {
            transform: translateY(-6px);
            border-color: rgba(139, 92, 246, 0.4);
        }

        .level-card.center:hover {
            transform: translateY(-24px);
        }

        .level-icon {
            width: 60px;
            height: 60px;
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            margin-bottom: 20px;
        }

        .level-card:nth-child(1) .level-icon {
            background: rgba(255, 177, 61, 0.15);
            color: var(--amber);
        }

        .level-card:nth-child(2) .level-icon {
            background: rgba(139, 92, 246, 0.15);
            color: var(--primary);
        }

        .level-card:nth-child(3) .level-icon {
            background: rgba(22, 200, 232, 0.15);
            color: var(--accent);
        }

        .level-card h3 {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .level-card .level-desc {
            font-size: 14px;
            color: var(--text-sub);
            margin-bottom: 24px;
            line-height: 1.6;
        }

        .level-stats {
            display: flex;
            gap: 20px;
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .level-stats .mini-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .level-stats .mini-stat .num {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.2;
        }

        .level-stats .mini-stat .lbl {
            font-size: 12px;
            color: var(--text-sub);
        }

        .progress-bar {
            height: 8px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.08);
            overflow: hidden;
            margin-top: 12px;
        }

        .progress-bar .fill {
            height: 100%;
            border-radius: 10px;
            background: var(--gradient);
            position: relative;
        }

        /* ===== Preview ===== */
        .preview {
            padding: 100px 0;
        }

        .preview-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 40px;
            gap: 24px;
            flex-wrap: wrap;
        }

        .preview-note {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(139, 92, 246, 0.12);
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            padding: 8px 16px;
            border-radius: 20px;
            border: 1px solid rgba(139, 92, 246, 0.3);
        }

        .preview-note i {
            font-size: 14px;
        }

        .preview-scroll {
            display: flex;
            gap: 20px;
            overflow-x: auto;
            padding-bottom: 16px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }

        .preview-scroll::-webkit-scrollbar {
            height: 6px;
        }

        .preview-scroll::-webkit-scrollbar-track {
            background: rgba(255, 255, 255, 0.04);
            border-radius: 10px;
        }

        .preview-scroll::-webkit-scrollbar-thumb {
            background: rgba(139, 92, 246, 0.5);
            border-radius: 10px;
        }

        .preview-card {
            flex: 0 0 280px;
            scroll-snap-align: start;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            position: relative;
            transition: all 0.25s ease;
        }

        .preview-card:hover {
            border-color: rgba(139, 92, 246, 0.5);
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .preview-card .thumb {
            position: relative;
            height: 180px;
            overflow: hidden;
        }

        .preview-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

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

        .preview-card.locked .thumb::after {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(18, 16, 26, 0.6);
        }

        .preview-card .lock-icon {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(18, 16, 26, 0.8);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-main);
            font-size: 18px;
            z-index: 3;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }

        .vip-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 3;
            background: var(--gradient);
            color: #fff;
            font-size: 11px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.5px;
        }

        .preview-card .info {
            padding: 20px;
        }

        .preview-card .info h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 6px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .preview-card .info p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0;
        }

        /* ===== News ===== */
        .news {
            padding: 100px 0;
            background: linear-gradient(180deg, transparent 0%, rgba(22, 200, 232, 0.03) 50%, transparent 100%);
        }

        .news-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 40px;
            gap: 20px;
            flex-wrap: wrap;
        }

        .news-header .section-title {
            margin-bottom: 0;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .news-card {
            display: flex;
            gap: 24px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px;
            transition: all 0.25s ease;
            align-items: flex-start;
        }

        .news-card:hover {
            border-color: rgba(139, 92, 246, 0.5);
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }

        .news-card .thumb {
            flex: 0 0 160px;
            height: 120px;
            border-radius: 14px;
            overflow: hidden;
        }

        .news-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

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

        .news-card .content {
            flex: 1;
            min-width: 0;
        }

        .news-card .content h4 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
        }

        .news-card .content p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.6;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-sub);
        }

        .news-meta .tag {
            background: rgba(139, 92, 246, 0.15);
            color: var(--primary);
            padding: 3px 12px;
            border-radius: 20px;
            font-weight: 600;
            font-size: 12px;
        }

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

        .news-meta time i {
            font-size: 12px;
        }

        .no-data {
            text-align: center;
            padding: 60px 24px;
            color: var(--text-sub);
            font-size: 16px;
            background: var(--card-bg);
            border: 1px dashed var(--border-light);
            border-radius: var(--radius);
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 100px 0;
        }

        .faq-layout {
            display: flex;
            gap: 60px;
            flex-wrap: wrap;
        }

        .faq-intro {
            flex: 1;
            min-width: 280px;
        }

        .faq-intro .section-title {
            margin-bottom: 12px;
        }

        .faq-intro p {
            font-size: 16px;
            color: var(--text-sub);
            margin-bottom: 32px;
        }

        .faq-list {
            flex: 2;
            min-width: 300px;
        }

        .accordion {
            display: flex;
            flex-direction: column;
            gap: 16px;
            list-style: none;
            margin: 0;
            background: transparent;
            border: none;
        }

        .accordion-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all 0.25s ease;
        }

        .accordion-item.is-active {
            border-color: rgba(139, 92, 246, 0.4);
            box-shadow: 0 0 40px rgba(139, 92, 246, 0.08);
        }

        .accordion-title {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 24px 28px;
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            background: transparent;
            border: none;
            transition: all 0.25s ease;
            line-height: 1.4;
        }

        .accordion-title:hover,
        .accordion-item.is-active .accordion-title {
            background: rgba(139, 92, 246, 0.04);
            color: var(--text-main);
        }

        .accordion-title .icon {
            font-size: 22px;
            color: var(--primary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
            margin-left: 16px;
        }

        .accordion-item.is-active .accordion-title .icon {
            transform: rotate(45deg);
        }

        .accordion-content {
            padding: 0 28px 24px;
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.7;
            background: transparent;
            border: none;
        }

        .accordion-content .content-inner {
            padding: 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 16px;
        }

        .faq-contact {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: 14px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            background: transparent;
            border: 1px solid var(--border-light);
            cursor: pointer;
            transition: all 0.25s ease;
        }

        .faq-contact:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 100px 0 120px;
        }

        .cta-card {
            position: relative;
            border-radius: var(--radius-lg);
            padding: 80px 60px;
            text-align: center;
            overflow: hidden;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
        }

        .cta-card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.35) 0%, rgba(22, 200, 232, 0.25) 100%);
            z-index: 1;
        }

        .cta-card::after {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(18, 16, 26, 0.7);
            z-index: 2;
        }

        .cta-card .cta-content {
            position: relative;
            z-index: 3;
        }

        .cta-card h2 {
            font-size: clamp(28px, 3.5vw, 40px);
            font-weight: 800;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .cta-card p {
            font-size: 18px;
            color: rgba(244, 242, 247, 0.85);
            margin-bottom: 36px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }

        .cta-card .btn-primary {
            font-size: 18px;
            padding: 18px 44px;
            box-shadow: 0 8px 32px rgba(139, 92, 246, 0.5);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border);
            padding-top: 60px;
        }

        .footer-main {
            padding-bottom: 40px;
        }

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

        .footer-brand .brand {
            font-size: 22px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-sub);
            max-width: 320px;
            margin-top: 12px;
            line-height: 1.7;
        }

        .footer-cols {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
        }

        .footer-col {
            min-width: 140px;
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-main);
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--text-sub);
            padding: 6px 0;
            transition: color 0.2s;
        }

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

        .footer-contact {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.8;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 20px 0;
            text-align: center;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.35);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .section-padding {
                padding: 80px 0;
            }

            .hero {
                padding: 150px 0 80px;
            }

            .hero .grid-x {
                row-gap: 48px;
            }

            .hero-visual {
                margin-top: 20px;
            }

            .level-card {
                width: 280px;
            }

            .level-card.center {
                padding: 36px;
            }

            .cta-card {
                padding: 60px 40px;
            }
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 60px 0;
            }

            .site-header .grid-container {
                height: 64px;
                flex-wrap: nowrap;
            }

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

            .site-nav {
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(18, 16, 26, 0.98);
                flex-direction: column;
                align-items: stretch;
                padding: 20px 24px;
                gap: 8px;
                border-bottom: 1px solid var(--border);
                display: none;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
            }

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

            .nav-link {
                padding: 12px 14px;
                justify-content: flex-start;
            }

            .nav-cta {
                margin: 8px 0 0;
                justify-content: center;
                padding: 14px 24px;
            }

            .hero {
                padding: 130px 0 60px;
            }

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

            .hero-subtitle {
                font-size: 16px;
            }

            .hero-stats {
                gap: 24px;
            }

            .stat-number {
                font-size: 28px;
            }

            .benefits {
                padding: 60px 0;
            }

            .benefit-card {
                padding: 32px 24px;
            }

            .levels {
                padding: 60px 0;
            }

            .level-card,
            .level-card.center {
                width: 100%;
                max-width: 400px;
                transform: none;
            }

            .level-card.center {
                padding: 36px;
            }

            .level-card.center:hover,
            .level-card:hover {
                transform: translateY(-6px);
            }

            .preview {
                padding: 60px 0;
            }

            .preview-card {
                flex-basis: 240px;
            }

            .news {
                padding: 60px 0;
            }

            .news-card {
                flex-direction: column;
                gap: 16px;
            }

            .news-card .thumb {
                flex-basis: auto;
                width: 100%;
                height: 160px;
            }

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

            .faq-layout {
                gap: 40px;
            }

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

            .cta-card {
                padding: 48px 24px;
            }

            .cta-card p {
                font-size: 16px;
            }

            .footer-main {
                padding-bottom: 24px;
            }

            .footer-cols {
                flex-direction: column;
                gap: 24px;
                margin-top: 24px;
            }
        }

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

            .hero-buttons {
                flex-direction: column;
            }

            .btn-primary,
            .btn-secondary {
                width: 100%;
            }

            .news-card .thumb {
                height: 120px;
            }

            .preview-card {
                flex-basis: 200px;
            }

            .hero-visual .cover-wrap img {
                height: 260px;
            }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --bg-primary: #12101A;
            --bg-secondary: #181420;
            --bg-footer: #0E0C14;
            --card-bg: #1C1824;
            --card-bg-hover: #211C2B;
            --brand-purple: #8B5CF6;
            --brand-cyan: #16C8E8;
            --brand-gradient: linear-gradient(135deg, #8B5CF6 0%, #16C8E8 100%);
            --accent: #FFB13D;
            --accent-gradient: linear-gradient(135deg, #FFB13D, #FF8A4C);
            --text-primary: #F4F2F7;
            --text-secondary: #ACA3B8;
            --text-muted: #7A7284;
            --border-color: rgba(255, 255, 255, 0.10);
            --border-light: rgba(255, 255, 255, 0.08);
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 18px 40px rgba(0, 0, 0, 0.45);
            --shadow-cta: 0 8px 24px rgba(139, 92, 246, 0.35);
            --transition-base: 0.25s ease;
            --font-stack: -apple-system, "SF Pro SC", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            background: var(--bg-primary);
            background-image: radial-gradient(ellipse 80% 50% at 50% -10%, rgba(139, 92, 246, 0.12) 0%, transparent 60%), radial-gradient(ellipse 60% 40% at 90% 10%, rgba(22, 200, 232, 0.06) 0%, transparent 50%);
            color: var(--text-primary);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

        ul,
        ol {
            list-style: none;
        }

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

        .grid-container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 导航栏 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(18, 16, 26, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            padding: 14px 0;
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
        }

        .site-header .grid-container {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-primary);
            white-space: nowrap;
            letter-spacing: -0.3px;
        }

        .brand i {
            width: 38px;
            height: 38px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: var(--brand-gradient);
            color: #fff;
            font-size: 16px;
            box-shadow: 0 4px 16px rgba(139, 92, 246, 0.3);
            flex-shrink: 0;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            color: var(--text-primary);
            font-size: 18px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.02);
            transition: all var(--transition-base);
            margin-left: auto;
        }

        .nav-toggle:hover {
            border-color: rgba(139, 92, 246, 0.5);
            background: rgba(139, 92, 246, 0.08);
        }

        .site-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 14px;
            border-radius: 12px;
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 15px;
            position: relative;
            transition: all var(--transition-base);
        }

        .nav-link i {
            font-size: 14px;
            opacity: 0.85;
        }

        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.05);
        }

        .nav-link.active {
            color: var(--text-primary);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            border-radius: 2px;
            background: var(--brand-gradient);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 13px 24px;
            border-radius: 16px;
            background: var(--brand-gradient);
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            box-shadow: 0 0 0 1px rgba(139, 92, 246, 0.35), 0 8px 24px rgba(139, 92, 246, 0.35);
            transition: all var(--transition-base);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 0 2px rgba(22, 200, 232, 0.35), 0 14px 36px rgba(139, 92, 246, 0.5);
            color: #fff;
        }

        /* ===== 分类页 Hero ===== */
        .page-hero {
            position: relative;
            padding: 160px 0 80px;
            background: linear-gradient(to bottom, rgba(18, 16, 26, 0.82), rgba(18, 16, 26, 0.95)), url('/assets/images/backpic/back-1.webp') no-repeat center center / cover;
            border-bottom: 1px solid var(--border-light);
        }

        .page-hero::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -80px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.2) 0%, transparent 70%);
            pointer-events: none;
        }

        .page-hero__content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }

        .hero-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: 100px;
            background: rgba(139, 92, 246, 0.12);
            border: 1px solid rgba(139, 92, 246, 0.35);
            color: #C4B5FD;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.3px;
            margin-bottom: 20px;
        }

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

        .page-hero h1 {
            font-size: clamp(36px, 4.5vw, 52px);
            line-height: 1.25;
            font-weight: 800;
            letter-spacing: -1px;
            margin-bottom: 16px;
            background: linear-gradient(135deg, #fff 20%, #C4B5FD 60%, #8B5CF6 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .page-hero p {
            font-size: 18px;
            line-height: 1.75;
            color: var(--text-secondary);
            max-width: 600px;
        }

        /* ===== 资讯内容区 ===== */
        .news-section {
            padding: 80px 0 20px;
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }

        .section-head h2 {
            font-size: clamp(28px, 3vw, 38px);
            line-height: 1.3;
            font-weight: 800;
            letter-spacing: -0.5px;
        }

        .section-head p {
            color: var(--text-secondary);
            font-size: 15px;
            max-width: 420px;
        }

        /* ===== 标签筛选 ===== */
        .filter-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 40px;
        }

        .filter-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 18px;
            border-radius: 100px;
            border: 1px solid var(--border-color);
            background: rgba(255, 255, 255, 0.02);
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-base);
        }

        .filter-chip i {
            font-size: 12px;
            opacity: 0.7;
        }

        .filter-chip:hover {
            border-color: rgba(139, 92, 246, 0.45);
            color: var(--text-primary);
            background: rgba(139, 92, 246, 0.06);
        }

        .filter-chip.active {
            border-color: transparent;
            background: var(--brand-gradient);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 6px 16px rgba(139, 92, 246, 0.3);
        }

        /* ===== 封面卡片网格 ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .news-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            transform: translateY(-6px);
            border-color: rgba(139, 92, 246, 0.5);
            box-shadow: var(--shadow-card-hover);
        }

        .card-thumb {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #16121D;
        }

        .card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

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

        .card-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 100px;
            background: rgba(18, 16, 26, 0.82);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--text-primary);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.2px;
        }

        .card-tag::before {
            content: "";
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }

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

        .card-title {
            font-size: 19px;
            line-height: 1.45;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
            transition: color var(--transition-base);
        }

        .news-card:hover .card-title {
            color: #C4B5FD;
        }

        .card-excerpt {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-secondary);
            margin-bottom: 18px;
            flex: 1;
        }

        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
            color: var(--text-muted);
            font-size: 13px;
        }

        .card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--text-secondary);
            font-weight: 600;
            font-size: 13px;
            transition: all var(--transition-base);
        }

        .card-link:hover {
            color: var(--brand-cyan);
            gap: 10px;
        }

        /* ===== 空状态 ===== */
        .empty-state {
            display: none;
            text-align: center;
            padding: 60px 20px;
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            border: 1px dashed rgba(255, 255, 255, 0.12);
        }

        .empty-state i {
            font-size: 44px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .empty-state p {
            color: var(--text-secondary);
            font-size: 15px;
        }

        /* ===== 数据概览 ===== */
        .stats-section {
            padding: 80px 0;
        }

        .stats-wrap {
            background: var(--card-bg);
            border-radius: var(--radius-xl);
            border: 1px solid var(--border-light);
            padding: 44px 40px;
            position: relative;
            overflow: hidden;
        }

        .stats-wrap::before {
            content: "";
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }

        .stats-wrap h2 {
            font-size: clamp(28px, 3vw, 38px);
            line-height: 1.3;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .stats-wrap .stats-desc {
            color: var(--text-secondary);
            margin-bottom: 36px;
        }

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

        .stat-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 24px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
        }

        .stat-item:hover {
            border-color: rgba(255, 177, 61, 0.35);
            background: rgba(255, 177, 61, 0.04);
        }

        .stat-icon {
            width: 52px;
            height: 52px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(255, 177, 61, 0.2), rgba(255, 177, 61, 0.05));
            border: 1px solid rgba(255, 177, 61, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--accent);
            flex-shrink: 0;
        }

        .stat-info {
            flex: 1;
        }

        .stat-info strong {
            display: block;
            font-size: 30px;
            font-weight: 800;
            line-height: 1.2;
            color: var(--text-primary);
            letter-spacing: -0.5px;
        }

        .stat-info span {
            font-size: 13px;
            color: var(--text-secondary);
        }

        /* ===== CTA 区块 ===== */
        .cta-section {
            padding: 80px 0 100px;
        }

        .cta-wrap {
            position: relative;
            border-radius: var(--radius-xl);
            padding: 60px 48px;
            text-align: center;
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.35) 0%, rgba(22, 200, 232, 0.25) 100%), url('/assets/images/backpic/back-2.png') no-repeat center center / cover;
            border: 1px solid rgba(255, 255, 255, 0.12);
            overflow: hidden;
        }

        .cta-wrap::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(18, 16, 26, 0.55);
            pointer-events: none;
        }

        .cta-wrap>* {
            position: relative;
            z-index: 2;
        }

        .cta-wrap h2 {
            font-size: clamp(28px, 3vw, 38px);
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .cta-wrap p {
            font-size: 16px;
            color: rgba(244, 242, 247, 0.85);
            margin-bottom: 32px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 36px;
            border-radius: 16px;
            background: var(--brand-gradient);
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            box-shadow: 0 8px 28px rgba(139, 92, 246, 0.45);
            transition: all var(--transition-base);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 40px rgba(139, 92, 246, 0.6);
            color: #fff;
        }

        .btn-primary:focus-visible {
            box-shadow: 0 0 0 3px rgba(22, 200, 232, 0.4);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 28px;
            border-radius: 14px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.35);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition-base);
        }

        .btn-secondary:hover {
            border-color: var(--brand-cyan);
            background: rgba(22, 200, 232, 0.06);
            transform: translateY(-2px);
            color: var(--text-primary);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-footer);
            border-top: 1px solid var(--border-light);
            padding: 64px 0 0;
        }

        .footer-main {
            padding-bottom: 40px;
        }

        .footer-brand .brand {
            font-size: 20px;
            margin-bottom: 14px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            max-width: 280px;
            margin-top: 12px;
        }

        .footer-cols {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .footer-col h5 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .footer-col a {
            display: block;
            padding: 5px 0;
            font-size: 14px;
            color: var(--text-secondary);
            transition: all var(--transition-base);
        }

        .footer-col a:hover {
            color: var(--brand-cyan);
            padding-left: 4px;
        }

        .footer-contact p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding: 20px 0;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== 响应式 ===== */
        @media screen and (max-width: 1024px) {
            .site-nav {
                gap: 2px;
            }

            .nav-link {
                padding: 8px 10px;
                font-size: 14px;
            }

            .nav-cta {
                padding: 12px 18px;
                font-size: 14px;
            }

            .news-grid {
                gap: 20px;
            }

            .stats-grid {
                gap: 20px;
            }

            .stat-info strong {
                font-size: 26px;
            }
        }

        @media screen and (max-width: 768px) {
            .site-header .grid-container {
                flex-wrap: wrap;
                gap: 12px;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .site-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 6px;
                padding: 16px 0;
                border-top: 1px solid var(--border-light);
                margin-top: 6px;
            }

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

            .nav-link {
                justify-content: flex-start;
                padding: 14px 16px;
                font-size: 15px;
                border-radius: 12px;
            }

            .nav-link.active::after {
                display: none;
            }

            .nav-link.active {
                background: rgba(139, 92, 246, 0.12);
            }

            .nav-cta {
                justify-content: center;
                margin-top: 8px;
                padding: 16px 24px;
                font-size: 16px;
            }

            .page-hero {
                padding: 140px 0 60px;
            }

            .news-section {
                padding: 60px 0 10px;
            }

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

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

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

            .stats-wrap {
                padding: 32px 24px;
            }

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

            .cta-wrap {
                padding: 44px 24px;
            }

            .footer-cols {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

        @media screen and (max-width: 520px) {
            .grid-container {
                padding-left: 18px;
                padding-right: 18px;
            }

            .brand {
                font-size: 19px;
            }

            .brand i {
                width: 32px;
                height: 32px;
                border-radius: 10px;
                font-size: 14px;
            }

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

            .page-hero p {
                font-size: 16px;
            }

            .filter-row {
                gap: 8px;
            }

            .filter-chip {
                padding: 8px 14px;
                font-size: 13px;
            }

            .card-body {
                padding: 20px;
            }

            .card-title {
                font-size: 17px;
            }

            .stat-item {
                padding: 18px;
            }

            .stat-info strong {
                font-size: 24px;
            }

            .btn-primary {
                padding: 14px 28px;
                font-size: 15px;
            }
        }

/* roulang page: article */
:root{
    --bg-page:#12101A;
    --bg-card:#1C1824;
    --bg-elevated:#221D2E;
    --bg-footer:#0E0C14;
    --brand-purple:#8B5CF6;
    --brand-cyan:#16C8E8;
    --accent-amber:#FFB13D;
    --text-main:#F4F2F7;
    --text-secondary:#ACA3B8;
    --text-weak:#7A7284;
    --border:rgba(255,255,255,0.10);
    --border-hover:rgba(139,92,246,0.5);
    --gradient-brand:linear-gradient(135deg,#8B5CF6,#16C8E8);
    --radius-lg:28px;
    --radius-md:20px;
    --radius-sm:14px;
    --shadow-card:0 12px 32px rgba(0,0,0,0.35);
    --shadow-cta:0 8px 24px rgba(139,92,246,0.35);
    --transition:0.25s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
    font-family:-apple-system,"SF Pro SC","PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Helvetica Neue",Arial,sans-serif;
    background:radial-gradient(ellipse 80% 50% at 50% -20%,rgba(139,92,246,0.12),transparent 70%),var(--bg-page);
    color:var(--text-main);
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select,textarea{font-family:inherit;font-size:inherit;line-height:inherit;border:none;outline:none;background:none;color:inherit}
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px}
.site-header{
    position:fixed;top:0;left:0;right:0;z-index:1000;
    background:rgba(18,16,26,0.9);
    -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
    border-bottom:1px solid rgba(255,255,255,0.06);
}
.site-header .grid-container{
    display:flex;align-items:center;justify-content:space-between;
    height:76px;gap:20px;
}
.brand{
    display:inline-flex;align-items:center;gap:10px;
    font-size:22px;font-weight:800;color:var(--text-main);
    letter-spacing:-0.5px;
    transition:opacity 0.2s;
}
.brand i{
    font-size:24px;
    background:var(--gradient-brand);
    -webkit-background-clip:text;-webkit-text-fill-color:transparent;
    background-clip:text;
}
.brand:hover{opacity:0.85}
.nav-toggle{
    display:none;width:44px;height:44px;align-items:center;justify-content:center;
    border:1px solid rgba(255,255,255,0.12);border-radius:12px;
    font-size:20px;color:var(--text-main);cursor:pointer;
    transition:all 0.25s ease;
}
.nav-toggle:hover{border-color:var(--brand-purple);background:rgba(139,92,246,0.1)}
.site-nav{display:flex;align-items:center;gap:4px}
.nav-link{
    display:inline-flex;align-items:center;gap:8px;
    color:var(--text-secondary);font-size:15px;font-weight:500;
    padding:10px 16px;border-radius:12px;position:relative;
    transition:all 0.25s ease;
}
.nav-link i{font-size:14px;opacity:0.8}
.nav-link:hover{color:var(--text-main);background:rgba(255,255,255,0.05)}
.nav-link.active{
    color:var(--text-main);
    background:rgba(139,92,246,0.12);
}
.nav-link.active::after{
    content:'';position:absolute;left:16px;right:16px;bottom:0;
    height:2px;border-radius:2px;background:var(--gradient-brand);
}
.nav-cta{
    display:inline-flex;align-items:center;gap:8px;
    background:var(--gradient-brand);color:#fff;
    font-size:15px;font-weight:700;padding:12px 26px;
    border-radius:14px;box-shadow:var(--shadow-cta);
    margin-left:12px;transition:all 0.25s ease;
}
.nav-cta:hover{
    transform:translateY(-2px);
    box-shadow:0 12px 32px rgba(139,92,246,0.5);
    filter:brightness(1.05);
    color:#fff;
}
.nav-cta:focus-visible{
    outline:3px solid rgba(22,200,232,0.5);
    outline-offset:2px;
}
.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    font-size:15px;font-weight:700;padding:14px 30px;border-radius:14px;
    transition:all 0.25s ease;cursor:pointer;text-align:center;
}
.btn-primary{
    background:var(--gradient-brand);color:#fff;
    box-shadow:var(--shadow-cta);
}
.btn-primary:hover{
    transform:translateY(-2px);
    box-shadow:0 12px 32px rgba(139,92,246,0.5);
    filter:brightness(1.05);
    color:#fff;
}
.btn-primary:focus-visible{
    outline:3px solid rgba(22,200,232,0.6);outline-offset:2px;
}
.btn-secondary{
    background:transparent;color:#fff;
    border:1px solid rgba(255,255,255,0.35);
    padding:13px 28px;
}
.btn-secondary:hover{
    border-color:var(--brand-cyan);transform:translateY(-2px);
    box-shadow:0 8px 24px rgba(22,200,232,0.15);
    color:#fff;
}
.btn-secondary:focus-visible{
    outline:3px solid rgba(22,200,232,0.5);outline-offset:2px;
}
.article-hero{
    position:relative;
    padding:170px 0 64px;
    background:linear-gradient(160deg,rgba(18,16,26,0.55) 0%,rgba(24,20,32,0.88) 100%),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    border-bottom:1px solid var(--border);
    text-align:center;
}
.breadcrumb{
    display:flex;align-items:center;justify-content:center;flex-wrap:wrap;
    gap:10px;margin-bottom:28px;
    font-size:14px;color:var(--text-secondary);
}
.breadcrumb a{
    display:inline-flex;align-items:center;gap:6px;
    color:var(--text-secondary);transition:color 0.2s;
}
.breadcrumb a:hover{color:var(--brand-cyan)}
.breadcrumb-sep{color:rgba(255,255,255,0.25);font-size:12px}
.breadcrumb [aria-current="page"]{color:var(--text-main);font-weight:500}
.article-hero h1{
    font-size:clamp(32px,4vw,44px);
    font-weight:800;line-height:1.3;
    color:var(--text-main);
    max-width:880px;margin:0 auto 20px;
    letter-spacing:-0.02em;
}
.article-meta{
    display:flex;align-items:center;justify-content:center;
    flex-wrap:wrap;gap:20px;
    margin-top:14px;
}
.meta-item{
    display:inline-flex;align-items:center;gap:8px;
    font-size:14px;color:var(--text-secondary);
    background:rgba(255,255,255,0.04);
    border:1px solid rgba(255,255,255,0.07);
    padding:6px 16px;border-radius:100px;
}
.meta-item i{color:var(--brand-cyan);font-size:13px}
.article-section{padding:60px 0 30px}
.article-card{
    max-width:780px;margin:0 auto;
    background:var(--bg-card);
    border:1px solid var(--border);
    border-radius:var(--radius-md);
    padding:52px 56px;
    box-shadow:var(--shadow-card);
}
.article-content{
    font-size:16px;line-height:1.8;color:var(--text-secondary);
}
.article-content p{
    margin:0 0 24px;line-height:1.8;
}
.article-content strong{color:var(--text-main);font-weight:700}
.article-content a{color:var(--brand-cyan);text-decoration:underline;text-underline-offset:4px}
.article-content a:hover{color:var(--brand-purple)}
.article-content h2,.article-content h3,.article-content h4{
    color:var(--text-main);font-weight:700;line-height:1.4;
    margin:40px 0 18px;
}
.article-content h2{
    font-size:28px;margin-top:48px;
    padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,0.07);
}
.article-content h3{font-size:21px}
.article-content h4{font-size:18px}
.article-content ul,.article-content ol{
    margin:0 0 24px;padding-left:24px;color:var(--text-secondary);
}
.article-content li{margin-bottom:8px}
.article-content img{
    border-radius:16px;max-width:100%;height:auto;margin:28px 0;
    box-shadow:0 8px 24px rgba(0,0,0,0.3);
}
.article-content blockquote{
    background:rgba(139,92,246,0.08);
    border-left:4px solid var(--brand-purple);
    border-radius:0 16px 16px 0;
    padding:22px 28px;margin:28px 0;
    color:var(--text-secondary);font-style:normal;
}
.article-content code{
    background:rgba(255,255,255,0.07);
    border-radius:6px;padding:2px 8px;
    font-family:"SF Mono",Consolas,monospace;font-size:14px;
    color:var(--brand-cyan);
}
.article-content table{
    border-collapse:collapse;width:100%;margin:28px 0;
    font-size:15px;
}
.article-content table th,.article-content table td{
    border:1px solid var(--border);padding:12px 16px;text-align:left;
}
.article-content table th{
    background:rgba(139,92,246,0.1);color:var(--text-main);font-weight:600;
}
.article-tags{
    display:flex;flex-wrap:wrap;gap:12px;align-items:center;
    margin-top:40px;padding-top:28px;
    border-top:1px solid var(--border);
}
.tags-label{font-size:14px;color:var(--text-secondary);font-weight:500}
.tag{
    display:inline-flex;align-items:center;
    padding:6px 14px;border-radius:100px;
    background:rgba(255,255,255,0.05);
    border:1px solid rgba(255,255,255,0.1);
    color:var(--text-secondary);font-size:13px;font-weight:500;
    transition:all 0.25s ease;
}
.tag:hover{
    border-color:var(--brand-purple);
    background:rgba(139,92,246,0.12);
    color:var(--text-main);
}
.article-actions{
    display:flex;justify-content:center;
    margin-top:36px;padding-top:28px;
    border-top:1px solid rgba(255,255,255,0.06);
}
.not-found-card{
    max-width:720px;margin:0 auto;
    background:var(--bg-card);
    border:1px solid var(--border);
    border-radius:var(--radius-md);
    padding:72px 48px;text-align:center;
    box-shadow:var(--shadow-card);
}
.not-found-card i{
    font-size:52px;color:var(--brand-cyan);
    display:block;margin-bottom:20px;
    opacity:0.75;
}
.not-found-card h2{
    font-size:32px;font-weight:800;margin-bottom:14px;
    color:var(--text-main);
}
.not-found-card p{
    color:var(--text-secondary);margin-bottom:32px;font-size:16px;
}
.related-section{padding:50px 0 20px}
.related-box{
    display:flex;align-items:center;gap:44px;
    max-width:880px;margin:0 auto;
    background:var(--bg-card);
    border:1px solid var(--border);
    border-radius:var(--radius-lg);
    padding:44px 48px;
    box-shadow:var(--shadow-card);
    transition:border-color 0.25s ease;
}
.related-box:hover{border-color:var(--border-hover)}
.related-visual{
    flex:0 0 300px;
    border-radius:18px;overflow:hidden;
}
.related-visual img{
    width:100%;height:200px;object-fit:cover;
    transition:transform 0.4s ease;
}
.related-box:hover .related-visual img{transform:scale(1.05)}
.related-content h3{
    font-size:23px;font-weight:700;color:var(--text-main);
    margin-bottom:10px;
}
.related-content p{
    color:var(--text-secondary);font-size:15px;
    margin-bottom:24px;line-height:1.7;
}
.cta-section{padding:50px 0 100px}
.cta-box{
    position:relative;overflow:hidden;
    background:linear-gradient(120deg,rgba(139,92,246,0.30) 0%,rgba(22,200,232,0.18) 100%),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat,#1C1824;
    border-radius:var(--radius-lg);
    border:1px solid rgba(139,92,246,0.35);
    padding:76px 48px;text-align:center;
}
.cta-box h2{
    font-size:clamp(28px,3.2vw,38px);
    font-weight:800;color:var(--text-main);
    margin-bottom:14px;letter-spacing:-0.02em;
}
.cta-box p{
    font-size:16px;color:var(--text-secondary);
    max-width:540px;margin:0 auto 36px;line-height:1.8;
}
.cta-box .btn{
    font-size:16px;padding:16px 38px;
    border-radius:16px;
}
.cta-decorations .star{
    position:absolute;border-radius:50%;
    background:#fff;opacity:0.4;
    animation:twinkle 3s ease-in-out infinite;
}
.cta-decorations .star:nth-child(1){width:5px;height:5px;top:30px;left:12%;animation-delay:0.2s}
.cta-decorations .star:nth-child(2){width:3px;height:3px;top:80px;right:18%;animation-delay:0.8s}
.cta-decorations .star:nth-child(3){width:4px;height:4px;bottom:40px;left:25%;animation-delay:1.4s}
.cta-decorations .star:nth-child(4){width:3px;height:3px;bottom:90px;right:30%;animation-delay:1.1s}
@keyframes twinkle{
    0%,100%{opacity:0.2}
    50%{opacity:0.7}
}
.site-footer{
    background:var(--bg-footer);
    border-top:1px solid rgba(255,255,255,0.06);
    padding:60px 0 0;
}
.footer-main{padding-bottom:40px}
.footer-brand p{
    color:var(--text-secondary);font-size:14px;
    max-width:300px;margin-top:16px;line-height:1.7;
}
.footer-brand .brand{font-size:20px}
.footer-cols{
    display:grid;grid-template-columns:repeat(3,1fr);gap:32px;
}
.footer-col h5{
    font-size:15px;font-weight:700;color:var(--text-main);
    margin-bottom:16px;
}
.footer-col a{
    display:block;color:var(--text-secondary);
    font-size:14px;padding:5px 0;
    transition:color 0.2s;
}
.footer-col a:hover{color:var(--brand-cyan)}
.footer-contact p{
    color:var(--text-secondary);font-size:14px;padding:4px 0;
}
.footer-bottom{
    border-top:1px solid rgba(255,255,255,0.06);
    padding:20px 0;text-align:center;
}
.footer-bottom p{
    color:var(--text-weak);font-size:13px;
}
@media (max-width:1024px){
    .related-box{gap:28px;padding:32px;}
    .related-visual{flex-basis:260px;}
    .related-visual img{height:180px;}
}
@media (max-width:960px){
    .nav-toggle{display:flex}
    .site-nav{
        position:fixed;top:76px;left:0;right:0;
        background:rgba(18,16,26,0.98);
        -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
        flex-direction:column;align-items:stretch;
        padding:20px 24px 24px;
        transform:translateY(-130%);
        transition:transform 0.3s ease;
        border-bottom:1px solid rgba(255,255,255,0.08);
        box-shadow:0 24px 48px rgba(0,0,0,0.5);
        max-height:calc(100vh - 76px);overflow-y:auto;
    }
    .site-nav.open{transform:translateY(0)}
    .nav-link{
        justify-content:flex-start;
        padding:13px 14px;font-size:16px;
    }
    .nav-link.active::after{display:none}
    .nav-cta{
        width:100%;justify-content:center;
        margin:16px 0 0;padding:14px 0;
        font-size:16px;
    }
}
@media (max-width:768px){
    .article-hero{padding:140px 0 44px}
    .article-card{padding:32px 24px;border-radius:18px}
    .article-hero h1{font-size:30px}
    .article-meta{gap:12px}
    .related-box{flex-direction:column;text-align:center;padding:28px 24px}
    .related-visual{flex:0 0 auto;width:100%}
    .related-visual img{height:170px;width:100%}
    .cta-section{padding:40px 0 60px}
    .cta-box{padding:48px 24px;border-radius:22px}
    .cta-box p{font-size:15px}
    .footer-cols{grid-template-columns:1fr 1fr;gap:24px}
}
@media (max-width:520px){
    .site-header .grid-container{height:64px;padding-left:16px;padding-right:16px}
    .site-nav{top:64px;padding:16px 16px 20px}
    .brand{
        font-size:17px;
        gap:7px;
    }
    .brand i{font-size:19px}
    .nav-toggle{width:40px;height:40px;font-size:18px}
    .article-hero{padding:120px 0 36px}
    .article-hero h1{font-size:25px;letter-spacing:0}
    .breadcrumb{font-size:12px;gap:6px;margin-bottom:18px}
    .meta-item{font-size:12px;padding:5px 12px}
    .article-card{padding:24px 18px}
    .article-content p{font-size:15px}
    .article-content h2{font-size:22px}
    .article-content h3{font-size:19px}
    .article-tags{gap:8px}
    .tag{font-size:12px;padding:5px 10px}
    .btn{padding:13px 22px;font-size:14px}
    .not-found-card{padding:48px 20px}
    .not-found-card h2{font-size:26px}
    .cta-box h2{font-size:26px}
    .footer-main{padding-bottom:24px}
    .footer-cols{grid-template-columns:1fr;gap:20px}
    .footer-bottom p{font-size:12px}
}

/* roulang page: category2 */
:root {
            --bg-deep: #12101A;
            --bg-body: #181420;
            --bg-card: #1C1824;
            --bg-input: #16121D;
            --brand-purple: #8B5CF6;
            --brand-cyan: #16C8E8;
            --brand-grad: linear-gradient(135deg, #8B5CF6 0%, #16C8E8 100%);
            --amber: #FFB13D;
            --text-1: #F4F2F7;
            --text-2: #ACA3B8;
            --text-3: #7A7284;
            --border: rgba(255, 255, 255, 0.08);
            --border-strong: rgba(255, 255, 255, 0.15);
            --success: #34D399;
            --warning: #FF8A4C;
            --radius: 20px;
            --radius-lg: 28px;
            --shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 20px 44px rgba(0, 0, 0, 0.45);
            --transition: 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background:
                radial-gradient(ellipse at 70% 15%, rgba(139, 92, 246, 0.15), transparent 50%),
                radial-gradient(ellipse at 20% 90%, rgba(22, 200, 232, 0.08), transparent 40%),
                var(--bg-body);
            color: var(--text-1);
            font-family: -apple-system, "SF Pro SC", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            transition: color var(--transition), border-color var(--transition), background var(--transition);
        }

        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(22, 200, 232, 0.5);
            outline-offset: 2px;
        }

        .grid-container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 200;
            background: rgba(18, 16, 26, 0.9);
            -webkit-backdrop-filter: blur(14px);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }

        .site-header .grid-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-1);
            text-decoration: none;
            white-space: nowrap;
        }

        .brand i {
            font-size: 24px;
            color: var(--brand-cyan);
        }

        .brand:hover {
            color: var(--brand-cyan);
        }

        .site-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 16px;
            border-radius: 12px;
            color: var(--text-2);
            font-size: 15px;
            font-weight: 500;
            text-decoration: none;
            transition: all var(--transition);
        }

        .nav-link i {
            font-size: 14px;
            opacity: 0.8;
        }

        .nav-link:hover {
            color: var(--text-1);
            background: rgba(255, 255, 255, 0.05);
        }

        .nav-link.active {
            color: var(--text-1);
            background: rgba(139, 92, 246, 0.15);
            box-shadow: inset 0 0 0 1px rgba(139, 92, 246, 0.4);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 12px 26px;
            border-radius: 14px;
            background: var(--brand-grad);
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            text-decoration: none;
            box-shadow: 0 8px 24px rgba(139, 92, 246, 0.35);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-cta:hover {
            box-shadow: 0 14px 36px rgba(139, 92, 246, 0.5);
            transform: translateY(-1px);
            color: #fff;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: 0;
            color: var(--text-1);
            font-size: 22px;
            cursor: pointer;
            padding: 8px 10px;
            border-radius: 10px;
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.05);
        }

        /* Page Hero */
        .page-hero {
            position: relative;
            padding: 180px 0 80px;
            background: linear-gradient(180deg, rgba(18, 16, 26, 0.55), rgba(24, 20, 32, 0.9)),
                url('/assets/images/backpic/back-2.png') center/cover no-repeat;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            pointer-events: none;
            background: radial-gradient(ellipse at 30% 20%, rgba(139, 92, 246, 0.25), transparent 60%);
        }

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

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-3);
            margin-bottom: 20px;
        }

        .breadcrumb a {
            color: var(--text-2);
            text-decoration: none;
        }

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

        .page-hero h1 {
            font-size: clamp(36px, 4.5vw, 52px);
            line-height: 1.25;
            font-weight: 800;
            margin: 0 0 16px;
            letter-spacing: -0.02em;
        }

        .hero-desc {
            font-size: 18px;
            color: var(--text-2);
            max-width: 660px;
            margin-bottom: 32px;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .data-badge {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 10px 18px;
            border-radius: 40px;
            background: rgba(255, 177, 61, 0.1);
            border: 1px solid rgba(255, 177, 61, 0.25);
            color: var(--amber);
            font-size: 14px;
            font-weight: 600;
        }

        .data-badge strong {
            font-size: 18px;
            font-weight: 800;
            color: var(--amber);
        }

        /* Guide Layout */
        .guide-section {
            padding: 100px 0;
        }

        .article-layout {
            display: grid;
            grid-template-columns: 280px 1fr;
            gap: 48px;
            align-items: start;
        }

        .toc {
            position: sticky;
            top: 108px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
        }

        .toc-title {
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 18px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .toc-title i {
            color: var(--brand-cyan);
        }

        .toc-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .toc-list li {
            margin-bottom: 4px;
        }

        .toc-list a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 9px 14px;
            border-radius: 10px;
            color: var(--text-2);
            font-size: 14px;
            text-decoration: none;
            transition: all var(--transition);
            border-left: 3px solid transparent;
        }

        .toc-list a i {
            font-size: 13px;
            color: var(--text-3);
            width: 16px;
        }

        .toc-list a:hover {
            color: var(--text-1);
            background: rgba(139, 92, 246, 0.1);
            border-left-color: var(--brand-purple);
        }

        .toc-list a.active {
            color: var(--brand-cyan);
            background: rgba(139, 92, 246, 0.1);
            border-left-color: var(--brand-purple);
        }

        .toc-content {
            min-width: 0;
        }

        .section-block {
            padding: 48px 40px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            margin-bottom: 40px;
            box-shadow: var(--shadow);
            transition: box-shadow var(--transition), border-color var(--transition);
        }

        .section-block:hover {
            border-color: rgba(139, 92, 246, 0.3);
            box-shadow: var(--shadow-hover);
        }

        .section-block h2 {
            font-size: clamp(24px, 2.5vw, 30px);
            font-weight: 800;
            margin: 0 0 16px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .section-block h2 i {
            color: var(--brand-purple);
        }

        .section-block p {
            color: var(--text-2);
            font-size: 16px;
            margin-bottom: 20px;
            max-width: 720px;
        }

        .section-cover {
            border-radius: 20px;
            overflow: hidden;
            margin: 24px 0;
            aspect-ratio: 16/9;
            background: #201A2A;
        }

        .section-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

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

        .tags-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }

        .tag-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 12px;
            background: rgba(139, 92, 246, 0.1);
            border: 1px solid rgba(139, 92, 246, 0.25);
            color: var(--text-1);
            font-size: 14px;
            font-weight: 500;
        }

        .tag-chip i {
            color: var(--success);
            font-size: 13px;
        }

        .progress-bar {
            margin-top: 24px;
        }

        .progress-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-2);
            margin-bottom: 8px;
        }

        .progress-track {
            height: 8px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.08);
            overflow: hidden;
        }

        .progress-fill {
            height: 100%;
            width: 68%;
            border-radius: 8px;
            background: var(--brand-grad);
        }

        .steps-list {
            list-style: none;
            margin: 24px 0 0;
            padding: 0;
            display: grid;
            gap: 14px;
        }

        .steps-list li {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 16px 20px;
            border-radius: 14px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border);
            transition: border-color var(--transition);
        }

        .steps-list li:hover {
            border-color: rgba(22, 200, 232, 0.3);
        }

        .step-num {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--brand-grad);
            color: #fff;
            font-weight: 800;
            font-size: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .steps-list li strong {
            display: block;
            margin-bottom: 4px;
            color: var(--text-1);
            font-size: 16px;
        }

        .steps-list li span {
            color: var(--text-2);
            font-size: 14px;
            line-height: 1.6;
        }

        /* FAQ */
        .faq-section {
            padding: 100px 0;
        }

        .faq-layout {
            display: grid;
            grid-template-columns: 320px 1fr;
            gap: 48px;
            align-items: start;
        }

        .faq-guide {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow);
        }

        .faq-guide h2 {
            font-size: 28px;
            font-weight: 800;
            margin: 0 0 16px;
        }

        .faq-guide p {
            color: var(--text-2);
            margin-bottom: 24px;
            font-size: 15px;
        }

        .btn-primary,
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: 14px;
            font-size: 15px;
            font-weight: 700;
            text-decoration: none;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
            line-height: 1.4;
        }

        .btn-primary {
            background: var(--brand-grad);
            color: #fff;
            box-shadow: 0 8px 24px rgba(139, 92, 246, 0.35);
        }

        .btn-primary:hover {
            box-shadow: 0 14px 36px rgba(139, 92, 246, 0.5);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-secondary {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.35);
            color: var(--text-1);
        }

        .btn-secondary:hover {
            border-color: var(--brand-cyan);
            color: var(--brand-cyan);
            transform: translateY(-2px);
        }

        .btn-lg {
            padding: 16px 36px;
            font-size: 16px;
            border-radius: 16px;
        }

        .accordion {
            background: transparent;
        }

        .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 16px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color var(--transition);
        }

        .accordion-item.is-active {
            border-color: rgba(139, 92, 246, 0.4);
        }

        .accordion-title {
            background: var(--bg-card);
            color: var(--text-1);
            font-size: 16px;
            font-weight: 600;
            padding: 20px 28px;
            border-bottom: 1px solid transparent;
            transition: background var(--transition), color var(--transition);
            text-decoration: none;
        }

        .accordion-title::before {
            content: '+';
            float: right;
            font-size: 24px;
            font-weight: 700;
            color: var(--brand-cyan);
            line-height: 1;
            transition: transform 0.25s ease;
        }

        .accordion-item.is-active .accordion-title {
            background: rgba(139, 92, 246, 0.06);
            color: var(--brand-cyan);
            border-bottom-color: var(--border);
        }

        .accordion-item.is-active .accordion-title::before {
            content: '-';
        }

        .accordion-title:hover {
            background: rgba(255, 255, 255, 0.03);
            color: var(--brand-cyan);
        }

        .accordion-content {
            background: var(--bg-card);
            padding: 20px 28px;
            color: var(--text-2);
            font-size: 15px;
            line-height: 1.7;
            border-top: 0;
        }

        /* CTA */
        .cta-section {
            padding: 100px 0;
        }

        .cta-card {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-lg);
            padding: 64px;
            text-align: center;
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.25), rgba(22, 200, 232, 0.2)),
                url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            border: 1px solid rgba(139, 92, 246, 0.3);
            box-shadow: var(--shadow);
        }

        .cta-card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(18, 16, 26, 0.55);
        }

        .cta-card h2,
        .cta-card p,
        .cta-card .btn-primary {
            position: relative;
            z-index: 2;
        }

        .cta-card h2 {
            font-size: clamp(28px, 3vw, 38px);
            font-weight: 800;
            margin: 0 0 16px;
        }

        .cta-card p {
            color: var(--text-2);
            max-width: 560px;
            margin: 0 auto 32px;
            font-size: 17px;
        }

        .cta-card .btn-primary {
            margin: 0 auto;
        }

        /* Footer */
        .site-footer {
            background: #0E0C14;
            border-top: 1px solid var(--border);
            padding: 60px 0 0;
        }

        .footer-main {
            padding-bottom: 40px;
        }

        .footer-brand .brand {
            font-size: 20px;
        }

        .footer-brand p {
            color: var(--text-2);
            font-size: 14px;
            margin: 16px 0 0;
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-cols {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-1);
            margin-bottom: 16px;
        }

        .footer-col a {
            display: block;
            color: var(--text-2);
            font-size: 14px;
            text-decoration: none;
            padding: 6px 0;
            transition: color var(--transition);
        }

        .footer-col a:hover {
            color: var(--brand-cyan);
        }

        .footer-contact p {
            color: var(--text-2);
            font-size: 14px;
            margin-bottom: 6px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 20px 0;
            text-align: center;
        }

        .footer-bottom p {
            color: var(--text-3);
            font-size: 13px;
            margin: 0;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .site-header .grid-container {
                height: 68px;
            }

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

            .toc {
                position: static;
                top: auto;
                margin-bottom: 8px;
            }

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

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

        @media (max-width: 768px) {
            .site-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(18, 16, 26, 0.98);
                padding: 20px 24px;
                flex-direction: column;
                align-items: stretch;
                gap: 10px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
            }

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

            .nav-toggle {
                display: block;
            }

            .nav-link {
                justify-content: center;
                padding: 14px;
            }

            .nav-cta {
                justify-content: center;
                padding: 14px;
                margin-top: 4px;
            }

            .page-hero {
                padding: 140px 0 60px;
            }

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

            .section-block {
                padding: 28px 20px;
            }

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

            .footer-cols {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .hero-desc {
                font-size: 16px;
            }

            .steps-list li {
                padding: 14px 16px;
            }

            .accordion-title {
                padding: 16px 20px;
                font-size: 15px;
            }

            .accordion-content {
                padding: 16px 20px;
                font-size: 14px;
            }
        }

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

            .brand {
                font-size: 17px;
            }

            .brand i {
                font-size: 20px;
            }

            .section-block h2 {
                font-size: 22px;
            }

            .faq-guide {
                padding: 28px 20px;
            }

            .cta-card {
                padding: 32px 20px;
                border-radius: 20px;
            }

            .footer-main {
                padding-bottom: 24px;
            }

            .tag-chip {
                font-size: 13px;
                padding: 7px 12px;
            }
        }

        /* Entrance animation */
        .page-hero .grid-container {
            animation: fadeUp 0.6s ease both;
        }

        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #12101A;
            --bg-surface: #1C1824;
            --bg-elevated: #221C2E;
            --bg-footer: #0E0C14;
            --brand-purple: #8B5CF6;
            --brand-cyan: #16C8E8;
            --accent-amber: #FFB13D;
            --text-primary: #F4F2F7;
            --text-secondary: #ACA3B8;
            --text-muted: #7A7284;
            --border-color: rgba(255, 255, 255, 0.10);
            --card-radius: 20px;
            --card-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
            --transition: 0.25s ease;
            --font-family: -apple-system, "SF Pro SC", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-family);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        h1,
        h2,
        h3,
        h4,
        h5 {
            margin: 0;
            line-height: 1.3;
            font-weight: 800;
            color: var(--text-primary);
        }

        p {
            margin: 0 0 1rem;
            color: var(--text-secondary);
        }

        .grid-container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding: 100px 0;
        }

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }

        .section-head.left {
            text-align: left;
            margin-left: 0;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.18), rgba(22, 200, 232, 0.18));
            color: #C4B5FD;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .section-head h2 {
            font-size: clamp(28px, 3vw, 38px);
            margin-bottom: 12px;
        }

        .section-head p {
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-secondary);
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: 14px;
            font-size: 15px;
            font-weight: 700;
            border: 0;
            cursor: pointer;
            transition: all var(--transition);
            line-height: 1.4;
            background: linear-gradient(135deg, var(--brand-purple), var(--brand-cyan));
            color: #fff;
            box-shadow: 0 8px 24px rgba(139, 92, 246, 0.35);
        }

        .btn:hover {
            transform: translateY(-2px);
            filter: brightness(1.08);
            box-shadow: 0 12px 32px rgba(139, 92, 246, 0.45);
        }

        .btn:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(22, 200, 232, 0.45);
        }

        .btn-ghost {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.35);
            color: #fff;
            box-shadow: none;
        }

        .btn-ghost:hover {
            border-color: var(--brand-cyan);
            background: rgba(22, 200, 232, 0.08);
            box-shadow: none;
        }

        .btn-lg {
            padding: 16px 36px;
            font-size: 16px;
            border-radius: 16px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(18, 16, 26, 0.9);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-color);
        }

        .site-header .grid-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            position: relative;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
        }

        .brand i {
            font-size: 18px;
            width: 38px;
            height: 38px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.85), rgba(22, 200, 232, 0.85));
            color: #fff;
            box-shadow: 0 4px 16px rgba(139, 92, 246, 0.4);
        }

        .site-nav {
            display: flex;
            align-items: center;
            gap: 22px;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            padding: 10px 4px;
            position: relative;
            transition: color var(--transition);
        }

        .nav-link i {
            font-size: 14px;
            opacity: 0.8;
        }

        .nav-link:hover {
            color: #fff;
        }

        .nav-link.active {
            color: #fff;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 26px;
            height: 3px;
            border-radius: 3px;
            background: linear-gradient(90deg, var(--brand-purple), var(--brand-cyan));
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 12px 24px;
            border-radius: 16px;
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--brand-purple), var(--brand-cyan));
            box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.1) inset;
            transition: all var(--transition);
            line-height: 1.4;
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            filter: brightness(1.1);
            box-shadow: 0 8px 30px rgba(139, 92, 246, 0.55);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border-color);
            color: #fff;
            font-size: 18px;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
        }

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            padding: 180px 0 100px;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(18, 16, 26, 0.78), rgba(18, 16, 26, 0.92));
        }

        .page-hero::after {
            content: '';
            position: absolute;
            top: -120px;
            right: -60px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.25), transparent 70%);
            pointer-events: none;
        }

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

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 36px;
        }

        .breadcrumb a {
            color: var(--text-secondary);
        }

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

        .breadcrumb i {
            font-size: 11px;
            color: var(--text-muted);
        }

        .breadcrumb span {
            color: var(--text-primary);
            font-weight: 600;
        }

        .hero-flag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 177, 61, 0.15);
            border: 1px solid rgba(255, 177, 61, 0.35);
            color: var(--accent-amber);
            font-size: 14px;
            font-weight: 600;
            padding: 8px 18px;
            border-radius: 999px;
            margin-bottom: 24px;
        }

        .hero-flag i {
            font-size: 13px;
        }

        .page-hero h1 {
            font-size: clamp(36px, 4.5vw, 52px);
            line-height: 1.25;
            margin-bottom: 20px;
            max-width: 640px;
        }

        .page-hero .hero-desc {
            font-size: 18px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 620px;
            margin-bottom: 36px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        /* ===== Timeline ===== */
        .timeline-section {
            background: linear-gradient(180deg, var(--bg-primary) 0%, #16121D 50%, var(--bg-primary) 100%);
            position: relative;
        }

        .timeline-list {
            position: relative;
            max-width: 1000px;
            margin: 0 auto;
            padding: 20px 0 0;
        }

        .timeline-list::before {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            left: 50%;
            width: 2px;
            background: linear-gradient(180deg, rgba(139, 92, 246, 0.5), rgba(22, 200, 232, 0.5));
            transform: translateX(-50%);
            opacity: 0.4;
        }

        .timeline-item {
            position: relative;
            width: 50%;
            padding-right: 56px;
            margin-bottom: 56px;
        }

        .timeline-item:nth-child(even) {
            margin-left: 50%;
            padding-right: 0;
            padding-left: 56px;
        }

        .timeline-dot {
            position: absolute;
            top: 36px;
            right: -7px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--brand-purple), var(--brand-cyan));
            box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.18), 0 0 16px rgba(139, 92, 246, 0.6);
            z-index: 2;
        }

        .timeline-item:nth-child(even) .timeline-dot {
            left: -7px;
            right: auto;
        }

        .timeline-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: var(--card-radius);
            box-shadow: var(--card-shadow);
            padding: 28px;
            transition: all var(--transition);
        }

        .timeline-card:hover {
            transform: translateY(-4px);
            border-color: rgba(139, 92, 246, 0.5);
            box-shadow: 0 20px 44px rgba(0, 0, 0, 0.45), 0 0 24px rgba(139, 92, 246, 0.12);
        }

        .timeline-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            margin-bottom: 14px;
        }

        .timeline-date {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .timeline-date i {
            color: var(--brand-purple);
        }

        .timeline-state {
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 999px;
            letter-spacing: 0.3px;
        }

        .timeline-state.ended {
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-secondary);
        }

        .timeline-state.live {
            background: rgba(255, 177, 61, 0.15);
            color: var(--accent-amber);
        }

        .timeline-state.upcoming {
            background: rgba(22, 200, 232, 0.12);
            color: var(--brand-cyan);
        }

        .timeline-card h3 {
            font-size: 20px;
            margin-bottom: 12px;
        }

        .timeline-cover {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            margin: 14px 0 16px;
            aspect-ratio: 16 / 9;
            background: var(--bg-elevated);
        }

        .timeline-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .timeline-card:hover .timeline-cover img {
            transform: scale(1.04);
        }

        .cover-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: linear-gradient(135deg, var(--brand-purple), var(--brand-cyan));
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 5px 12px;
            border-radius: 999px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
        }

        .timeline-card p {
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 18px;
        }

        .timeline-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            border-top: 1px solid var(--border-color);
            padding-top: 16px;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .timeline-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .timeline-meta i {
            color: var(--brand-cyan);
        }

        .timeline-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--brand-purple);
            font-weight: 600;
        }

        .timeline-link:hover {
            color: var(--brand-cyan);
        }

        /* ===== Stats ===== */
        .stats-section {
            background: var(--bg-surface);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .stat-card {
            background: var(--bg-primary);
            border: 1px solid var(--border-color);
            border-radius: var(--card-radius);
            padding: 36px 28px;
            text-align: center;
            box-shadow: var(--card-shadow);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            border-radius: 0 0 8px 8px;
            background: linear-gradient(90deg, var(--brand-purple), var(--brand-cyan));
            opacity: 0.7;
        }

        .stat-card:hover {
            border-color: rgba(139, 92, 246, 0.4);
            transform: translateY(-4px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
        }

        .stat-number {
            font-size: clamp(32px, 3vw, 44px);
            font-weight: 800;
            background: linear-gradient(135deg, var(--brand-purple), var(--brand-cyan));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 8px;
            line-height: 1.2;
        }

        .stat-number span {
            font-size: 0.7em;
            background: none;
            -webkit-text-fill-color: var(--accent-amber);
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }

        .stat-bar {
            height: 6px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 999px;
            overflow: hidden;
        }

        .stat-bar span {
            display: block;
            height: 100%;
            border-radius: 999px;
            background: linear-gradient(90deg, var(--brand-purple), var(--brand-cyan));
        }

        /* ===== Steps ===== */
        .process-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: 28px;
            box-shadow: var(--card-shadow);
            padding: 40px 36px;
            position: relative;
        }

        .process-step {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            position: relative;
            padding-bottom: 32px;
            margin-bottom: 32px;
        }

        .process-step:not(:last-child)::after {
            content: '';
            position: absolute;
            left: 27px;
            top: 60px;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, rgba(139, 92, 246, 0.4), rgba(22, 200, 232, 0.15));
        }

        .process-step:last-child {
            padding-bottom: 0;
            margin-bottom: 0;
        }

        .process-num {
            width: 56px;
            height: 56px;
            min-width: 56px;
            border-radius: 18px;
            background: var(--bg-primary);
            border: 1px solid rgba(139, 92, 246, 0.4);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            color: var(--brand-purple);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
        }

        .process-step:nth-child(2) .process-num {
            border-color: rgba(22, 200, 232, 0.4);
            color: var(--brand-cyan);
            background: rgba(22, 200, 232, 0.06);
        }

        .process-step:nth-child(3) .process-num {
            border-color: rgba(255, 177, 61, 0.4);
            color: var(--accent-amber);
            background: rgba(255, 177, 61, 0.06);
        }

        .process-info h3 {
            font-size: 18px;
            margin-bottom: 8px;
        }

        .process-info p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

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

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

        .accordion {
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: 24px;
            overflow: hidden;
            box-shadow: var(--card-shadow);
        }

        .accordion-item {
            border-bottom: 1px solid var(--border-color);
            background: transparent;
        }

        .accordion-item:last-child {
            border-bottom: 0;
        }

        .accordion-title {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: transparent;
            color: var(--text-primary);
            font-size: 16px;
            font-weight: 600;
            padding: 22px 28px;
            border: 0;
            position: relative;
            transition: color var(--transition), background var(--transition);
        }

        .accordion-title::before,
        .accordion-title::after {
            content: '';
            display: none;
        }

        .accordion-title:hover,
        .accordion-title:focus {
            background: rgba(139, 92, 246, 0.06);
            color: #fff;
        }

        .accordion-title .faq-toggle {
            width: 28px;
            height: 28px;
            min-width: 28px;
            border-radius: 50%;
            border: 1px solid var(--border-color);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--text-secondary);
            transition: all var(--transition);
        }

        .accordion-item.is-active .accordion-title {
            color: #C4B5FD;
        }

        .accordion-item.is-active .accordion-title .faq-toggle {
            background: linear-gradient(135deg, var(--brand-purple), var(--brand-cyan));
            border-color: transparent;
            color: #fff;
            transform: rotate(45deg);
        }

        .accordion-content {
            background: transparent;
            color: var(--text-secondary);
            font-size: 15px;
            padding: 0 28px 24px;
            border: 0;
            line-height: 1.8;
        }

        .accordion-content p {
            margin: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 100px 0;
            background: var(--bg-primary);
        }

        .cta-panel {
            position: relative;
            border-radius: 28px;
            overflow: hidden;
            background-color: var(--bg-surface);
            border: 1px solid var(--border-color);
            padding: 72px 48px;
            text-align: center;
            box-shadow: var(--card-shadow);
        }

        .cta-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.22;
        }

        .cta-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.55), rgba(22, 200, 232, 0.35));
            mix-blend-mode: multiply;
        }

        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
            margin: 0 auto;
        }

        .cta-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent-amber);
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .cta-content h2 {
            font-size: clamp(28px, 3vw, 38px);
            margin-bottom: 16px;
        }

        .cta-content p {
            font-size: 17px;
            color: var(--text-secondary);
            margin-bottom: 32px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-footer);
            border-top: 1px solid var(--border-color);
            padding: 72px 0 0;
        }

        .footer-main {
            padding-bottom: 48px;
        }

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

        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            max-width: 300px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        .footer-cols {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .footer-col h5 {
            font-size: 15px;
            color: #fff;
            margin-bottom: 16px;
            font-weight: 700;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--text-secondary);
            padding: 5px 0;
            transition: color var(--transition), transform var(--transition);
        }

        .footer-col a:hover {
            color: var(--brand-cyan);
            transform: translateX(3px);
        }

        .footer-contact p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 8px;
            line-height: 1.6;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding: 24px 0;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .section {
                padding: 80px 0;
            }

            .site-nav {
                gap: 14px;
            }

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

            .nav-cta {
                padding: 10px 18px;
                font-size: 14px;
            }

            .timeline-card {
                padding: 22px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 60px 0;
            }

            .site-header .grid-container {
                height: 64px;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .site-nav {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(18, 16, 26, 0.98);
                backdrop-filter: blur(14px);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
            }

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

            .nav-link,
            .nav-link.active {
                padding: 14px 12px;
                border-radius: 12px;
            }

            .nav-link.active {
                background: rgba(139, 92, 246, 0.12);
            }

            .nav-link.active::after {
                display: none;
            }

            .nav-cta {
                margin-top: 14px;
                justify-content: center;
                padding: 14px 20px;
            }

            .page-hero {
                padding: 150px 0 70px;
            }

            .timeline-list {
                padding: 0;
            }

            .timeline-list::before {
                left: 12px;
                transform: none;
            }

            .timeline-item,
            .timeline-item:nth-child(even) {
                width: 100%;
                margin-left: 0;
                padding: 0 0 40px 40px;
            }

            .timeline-dot,
            .timeline-item:nth-child(even) .timeline-dot {
                left: 5px;
                right: auto;
            }

            .timeline-card {
                padding: 20px;
            }

            .process-card {
                padding: 28px 20px;
            }

            .cta-panel {
                padding: 48px 24px;
            }

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

            .footer-cols {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .footer-brand {
                margin-bottom: 24px;
            }
        }

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

            .page-hero {
                padding: 130px 0 60px;
            }

            .page-hero h1 {
                font-size: 34px;
            }

            .page-hero .hero-desc {
                font-size: 16px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .hero-actions .btn {
                justify-content: center;
            }

            .timeline-card h3 {
                font-size: 18px;
            }

            .timeline-cover {
                aspect-ratio: 4 / 3;
            }

            .timeline-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }

            .process-step {
                gap: 16px;
            }

            .process-num {
                width: 48px;
                height: 48px;
                min-width: 48px;
                border-radius: 14px;
                font-size: 18px;
            }

            .process-step:not(:last-child)::after {
                left: 23px;
            }

            .stat-card {
                padding: 28px 20px;
            }

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

            .cta-panel {
                padding: 40px 20px;
            }

            .cta-content h2 {
                font-size: 26px;
            }

            .cta-content p {
                font-size: 15px;
            }
        }