/* roulang page: index */
:root {
            --bg-primary: #0b1120;
            --bg-secondary: #111827;
            --bg-card: #1a2332;
            --bg-elevated: #1f2b3d;
            --bg-nav: #0d1525;
            --text-primary: #f0f4f8;
            --text-secondary: #94a3b8;
            --text-muted: #64748b;
            --accent-primary: #ff6b35;
            --accent-secondary: #d4a84b;
            --accent-blue: #3b82f6;
            --accent-glow: rgba(255, 107, 53, 0.15);
            --border-color: #2a3a4a;
            --border-light: #334155;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
            --shadow: 0 4px 24px rgba(0,0,0,0.3);
            --shadow-lg: 0 12px 48px rgba(0,0,0,0.4);
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --transition: all 0.25s ease;
            --nav-height: 72px;
        }

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

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

        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 1rem;
            overflow-x: hidden;
        }

        a {
            color: var(--accent-secondary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-primary);
        }
        a:focus-visible {
            outline: 2px solid var(--accent-primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

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

        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent-primary);
            outline-offset: 2px;
        }

        ::selection {
            background: var(--accent-primary);
            color: #fff;
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
            margin-left: auto;
            margin-right: auto;
        }

        .container-narrow {
            max-width: 960px;
        }

        /* ===== 顶部信息条 ===== */
        .topbar {
            background: rgba(13, 21, 37, 0.95);
            border-bottom: 1px solid var(--border-color);
            padding: 8px 0;
            font-size: 0.85rem;
            color: var(--text-secondary);
            backdrop-filter: blur(12px);
        }
        .topbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 6px 16px;
        }
        .topbar-left {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .topbar-left i {
            color: var(--accent-secondary);
            font-size: 0.75rem;
        }
        .topbar-left span {
            color: var(--text-muted);
        }
        .topbar-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .topbar-right a {
            color: var(--text-secondary);
            font-size: 0.85rem;
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: var(--transition);
        }
        .topbar-right a:hover {
            color: var(--accent-secondary);
        }
        .topbar-right a i {
            font-size: 0.7rem;
        }
        .topbar-divider {
            width: 1px;
            height: 14px;
            background: var(--border-color);
        }

        /* ===== 主导航 ===== */
        .navbar-main {
            background: rgba(11, 17, 32, 0.92);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            padding: 0;
            min-height: var(--nav-height);
            transition: var(--transition);
            position: sticky;
            top: 0;
            z-index: 1050;
        }
        .navbar-main .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            transition: var(--transition);
            padding: 0;
        }
        .navbar-brand:hover {
            color: var(--accent-secondary);
            transform: scale(1.01);
        }
        .navbar-brand .brand-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #fff;
            font-weight: 700;
            box-shadow: 0 0 20px var(--accent-glow);
        }
        .navbar-brand .brand-text {
            background: linear-gradient(135deg, var(--text-primary) 40%, var(--accent-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .navbar-nav-wrap {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .navbar-nav-wrap .nav-link {
            color: var(--text-secondary);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
            letter-spacing: 0.3px;
        }
        .navbar-nav-wrap .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.04);
        }
        .navbar-nav-wrap .nav-link.active {
            color: var(--accent-secondary);
            background: rgba(212, 168, 75, 0.08);
        }
        .navbar-nav-wrap .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent-secondary);
            border-radius: 4px;
        }
        .navbar-nav-wrap .nav-cta {
            background: linear-gradient(135deg, var(--accent-primary), #e85d2c);
            color: #fff !important;
            padding: 8px 22px !important;
            border-radius: 24px !important;
            font-weight: 600;
            box-shadow: 0 4px 16px rgba(255, 107, 53, 0.25);
            margin-left: 8px;
        }
        .navbar-nav-wrap .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 107, 53, 0.35);
            background: linear-gradient(135deg, #ff7a4a, #f0602a);
            color: #fff !important;
        }
        .navbar-toggler {
            border: none;
            background: transparent;
            color: var(--text-primary);
            font-size: 1.5rem;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            cursor: pointer;
        }
        .navbar-toggler:hover {
            background: rgba(255, 255, 255, 0.05);
        }
        .navbar-toggler:focus {
            outline: 2px solid var(--accent-primary);
            outline-offset: 2px;
        }
        .navbar-collapse {
            flex-grow: 0;
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            position: relative;
            padding: 100px 0 90px;
            background: linear-gradient(160deg, #0b1120 0%, #162033 50%, #0f1923 100%);
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255, 107, 53, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -5%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(212, 168, 75, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-content {
            max-width: 720px;
            margin: 0 auto;
            text-align: center;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(212, 168, 75, 0.12);
            border: 1px solid rgba(212, 168, 75, 0.2);
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.85rem;
            color: var(--accent-secondary);
            margin-bottom: 24px;
            letter-spacing: 0.5px;
        }
        .hero-badge i {
            font-size: 0.7rem;
            color: var(--accent-secondary);
        }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #f0f4f8 30%, var(--accent-secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
        }
        .hero p {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 580px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--accent-primary), #e85d2c);
            color: #fff;
            font-weight: 600;
            padding: 14px 34px;
            border-radius: 30px;
            border: none;
            font-size: 1rem;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(255, 107, 53, 0.3);
            cursor: pointer;
            text-decoration: none;
        }
        .btn-primary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 36px rgba(255, 107, 53, 0.4);
            color: #fff;
            background: linear-gradient(135deg, #ff7a4a, #f0602a);
        }
        .btn-secondary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--text-primary);
            font-weight: 500;
            padding: 14px 32px;
            border-radius: 30px;
            border: 1px solid var(--border-light);
            font-size: 1rem;
            transition: var(--transition);
            cursor: pointer;
            text-decoration: none;
        }
        .btn-secondary-custom:hover {
            border-color: var(--accent-secondary);
            color: var(--accent-secondary);
            background: rgba(212, 168, 75, 0.06);
            transform: translateY(-2px);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            justify-content: center;
            margin-top: 56px;
            padding-top: 40px;
            border-top: 1px solid var(--border-color);
        }
        .hero-stat-item {
            text-align: center;
        }
        .hero-stat-item .stat-number {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.2;
        }
        .hero-stat-item .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 2px;
        }
        .hero-stat-item .stat-number .highlight {
            color: var(--accent-secondary);
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 80px 0;
        }
        .section-header {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 52px;
        }
        .section-header .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--accent-secondary);
            margin-bottom: 12px;
            border: 1px solid rgba(212, 168, 75, 0.2);
            padding: 4px 16px;
            border-radius: 20px;
            background: rgba(212, 168, 75, 0.06);
        }
        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .section-header p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .section-bg-alt {
            background: var(--bg-secondary);
        }

        /* ===== 特色卡片 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 32px 24px;
            transition: var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            border-color: rgba(212, 168, 75, 0.2);
            box-shadow: var(--shadow-lg);
        }
        .feature-card .icon-wrap {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.6rem;
            color: #fff;
        }
        .feature-card .icon-wrap.orange {
            background: linear-gradient(135deg, var(--accent-primary), #e85d2c);
        }
        .feature-card .icon-wrap.gold {
            background: linear-gradient(135deg, var(--accent-secondary), #b8923a);
        }
        .feature-card .icon-wrap.blue {
            background: linear-gradient(135deg, var(--accent-blue), #2563eb);
        }
        .feature-card .icon-wrap.green {
            background: linear-gradient(135deg, #22c55e, #16a34a);
        }
        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .feature-card p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 分类入口 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 28px;
        }
        .category-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            position: relative;
            overflow: hidden;
        }
        .category-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
            opacity: 0;
            transition: var(--transition);
        }
        .category-card:hover::before {
            opacity: 1;
        }
        .category-card:hover {
            transform: translateY(-6px);
            border-color: rgba(212, 168, 75, 0.15);
            box-shadow: var(--shadow-lg);
        }
        .category-card .cat-icon {
            width: 50px;
            height: 50px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: #fff;
            margin-bottom: 18px;
        }
        .category-card .cat-icon.gold {
            background: linear-gradient(135deg, var(--accent-secondary), #b8923a);
        }
        .category-card .cat-icon.orange {
            background: linear-gradient(135deg, var(--accent-primary), #e85d2c);
        }
        .category-card h3 {
            font-size: 1.35rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .category-card p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 20px;
            flex-grow: 1;
        }
        .category-card .cat-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 500;
            color: var(--accent-secondary);
            font-size: 0.92rem;
            transition: var(--transition);
        }
        .category-card .cat-link:hover {
            color: var(--accent-primary);
            gap: 10px;
        }

        /* ===== 最新资讯列表 ===== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        .news-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 22px 26px;
            transition: var(--transition);
            display: flex;
            flex-wrap: wrap;
            align-items: flex-start;
            gap: 16px 24px;
        }
        .news-item:hover {
            border-color: rgba(212, 168, 75, 0.15);
            box-shadow: var(--shadow);
            transform: translateX(4px);
        }
        .news-item .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
            min-width: 140px;
        }
        .news-item .news-cat {
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 14px;
            background: rgba(212, 168, 75, 0.1);
            color: var(--accent-secondary);
            border: 1px solid rgba(212, 168, 75, 0.15);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .news-item .news-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .news-item .news-date i {
            font-size: 0.65rem;
        }
        .news-item .news-body {
            flex: 1;
            min-width: 200px;
        }
        .news-item .news-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            display: block;
            transition: var(--transition);
        }
        .news-item .news-title:hover {
            color: var(--accent-secondary);
        }
        .news-item .news-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }
        .news-empty {
            text-align: center;
            padding: 48px 20px;
            color: var(--text-muted);
            font-size: 1rem;
        }
        .news-empty i {
            font-size: 2.4rem;
            color: var(--border-color);
            margin-bottom: 16px;
            display: block;
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 24px;
        }
        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 32px 20px;
            text-align: center;
            transition: var(--transition);
        }
        .stat-card:hover {
            border-color: rgba(212, 168, 75, 0.2);
            box-shadow: var(--shadow);
            transform: translateY(-4px);
        }
        .stat-card .stat-num {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.1;
            background: linear-gradient(135deg, var(--accent-secondary), var(--accent-primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 8px;
        }
        .stat-card .stat-icon {
            font-size: 1.4rem;
            color: var(--accent-secondary);
            margin-bottom: 14px;
            opacity: 0.6;
        }

        /* ===== 使用流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 32px;
            counter-reset: step;
        }
        .step-card {
            text-align: center;
            position: relative;
            padding: 28px 16px;
        }
        .step-card .step-number {
            counter-increment: step;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-primary), #e85d2c);
            color: #fff;
            font-weight: 700;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: 0 0 30px var(--accent-glow);
        }
        .step-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .step-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 20px 26px;
            transition: var(--transition);
            cursor: pointer;
        }
        .faq-item:hover {
            border-color: rgba(212, 168, 75, 0.15);
        }
        .faq-item .faq-question {
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .faq-item .faq-question i {
            color: var(--accent-secondary);
            font-size: 0.85rem;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding-top: 0;
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 14px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(160deg, #111827 0%, #1a2332 100%);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: 72px 0;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .cta-section p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 500px;
            margin: 0 auto 32px;
        }
        .cta-section .btn-primary-custom {
            font-size: 1.05rem;
            padding: 16px 40px;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #080e1a;
            border-top: 1px solid var(--border-color);
            padding: 48px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .navbar-brand {
            margin-bottom: 12px;
            font-size: 1.3rem;
        }
        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 300px;
        }
        .footer h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer ul li a {
            color: var(--text-muted);
            font-size: 0.88rem;
            transition: var(--transition);
        }
        .footer ul li a:hover {
            color: var(--accent-secondary);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--accent-secondary);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero h1 {
                font-size: 2.6rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .topbar .container {
                justify-content: center;
                text-align: center;
            }
            .topbar-left,
            .topbar-right {
                width: 100%;
                justify-content: center;
            }
            .hero {
                padding: 64px 0 56px;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 24px;
                margin-top: 36px;
                padding-top: 28px;
            }
            .hero-stat-item .stat-number {
                font-size: 1.4rem;
            }
            .section {
                padding: 56px 0;
            }
            .section-header h2 {
                font-size: 1.7rem;
            }
            .features-grid {
                grid-template-columns: 1fr 1fr;
            }
            .category-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
            }
            .news-item {
                padding: 18px 20px;
                flex-direction: column;
                gap: 10px;
            }
            .news-item .news-meta {
                min-width: auto;
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .navbar-main .container {
                height: auto;
                min-height: var(--nav-height);
                padding-top: 8px;
                padding-bottom: 8px;
            }
            .navbar-collapse {
                background: var(--bg-nav);
                border-radius: var(--radius);
                padding: 16px;
                margin-top: 8px;
                border: 1px solid var(--border-color);
            }
            .navbar-nav-wrap {
                flex-direction: column;
                width: 100%;
                gap: 2px;
            }
            .navbar-nav-wrap .nav-link {
                width: 100%;
                text-align: center;
                padding: 10px 16px;
            }
            .navbar-nav-wrap .nav-link.active::after {
                display: none;
            }
            .navbar-nav-wrap .nav-cta {
                margin-left: 0;
                margin-top: 8px;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero p {
                font-size: 0.92rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .btn-primary-custom,
            .btn-secondary-custom {
                width: 100%;
                justify-content: center;
                padding: 12px 24px;
                font-size: 0.95rem;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .stat-card {
                padding: 20px 14px;
            }
            .stat-card .stat-num {
                font-size: 2rem;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .news-item .news-title {
                font-size: 0.95rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section p {
                font-size: 0.92rem;
            }
            .navbar-brand {
                font-size: 1.2rem;
            }
            .navbar-brand .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 1rem;
            }
            .faq-item {
                padding: 16px 18px;
            }
            .faq-item .faq-question {
                font-size: 0.92rem;
            }
            .category-card {
                padding: 26px 20px;
            }
            .category-card h3 {
                font-size: 1.15rem;
            }
        }

/* roulang page: category1 */
/* ===== :root 设计变量 ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --accent-light: #fad6a5;
            --bg-white: #ffffff;
            --bg-light: #f8f9fa;
            --bg-dark: #0d1b2a;
            --bg-gradient: linear-gradient(135deg, #0d1b2a 0%, #1d3557 50%, #2a4a7f 100%);
            --bg-card: #ffffff;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-muted: #8a8aa0;
            --text-white: #ffffff;
            --border-color: #e8e8f0;
            --border-light: #f0f0f5;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
            --shadow-glow: 0 0 30px rgba(230, 57, 70, 0.15);
            --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --header-height: 80px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-base);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-white);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            list-style: none;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== 导航 ===== */
        .navbar-main {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            height: var(--header-height);
            transition: box-shadow var(--transition);
        }
        .navbar-main.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }
        .navbar-main .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: var(--text-primary);
            font-weight: 700;
            font-size: 1.5rem;
            letter-spacing: -0.5px;
        }
        .navbar-brand:hover {
            color: var(--text-primary);
        }
        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 1.3rem;
            font-weight: 800;
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.3);
        }
        .brand-text {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .navbar-toggler {
            border: none;
            background: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .navbar-toggler:hover {
            background: var(--bg-light);
        }
        .navbar-toggler:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .navbar-nav-wrap {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .navbar-nav-wrap .nav-link {
            padding: 10px 20px;
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .navbar-nav-wrap .nav-link:hover {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.06);
        }
        .navbar-nav-wrap .nav-link.active {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.08);
            font-weight: 600;
        }
        .navbar-nav-wrap .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        .navbar-nav-wrap .nav-cta {
            background: var(--primary);
            color: #fff !important;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.3);
        }
        .navbar-nav-wrap .nav-cta:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 20px rgba(230, 57, 70, 0.4);
            transform: translateY(-1px);
        }
        .navbar-nav-wrap .nav-cta i {
            font-size: 0.9rem;
        }
        @media (max-width: 991px) {
            .navbar-main .container {
                flex-wrap: wrap;
            }
            .navbar-nav-wrap {
                flex-direction: column;
                align-items: stretch;
                width: 100%;
                padding: 16px 0 20px;
                gap: 2px;
            }
            .navbar-nav-wrap .nav-link {
                padding: 12px 16px;
                text-align: center;
            }
            .navbar-nav-wrap .nav-link.active::after {
                display: none;
            }
            .navbar-nav-wrap .nav-cta {
                justify-content: center;
                margin-top: 8px;
            }
            .navbar-collapse {
                background: rgba(255, 255, 255, 0.98);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
                max-height: 80vh;
                overflow-y: auto;
            }
        }
        @media (max-width: 576px) {
            .brand-text {
                font-size: 1.2rem;
            }
            .brand-icon {
                width: 36px;
                height: 36px;
                font-size: 1.1rem;
            }
        }

        /* ===== Hero 首屏 ===== */
        .hero-guide {
            padding: 140px 0 80px;
            background: var(--bg-gradient);
            position: relative;
            overflow: hidden;
            margin-top: var(--header-height);
        }
        .hero-guide::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(230, 57, 70, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-guide::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(244, 162, 97, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-guide .container {
            position: relative;
            z-index: 1;
        }
        .hero-guide-content {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }
        .hero-guide-content .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: #fff;
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 24px;
            letter-spacing: 0.5px;
        }
        .hero-guide-content .hero-badge i {
            color: var(--accent-light);
        }
        .hero-guide-content h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }
        .hero-guide-content h1 span {
            background: linear-gradient(135deg, #ff6b6b, #f4a261);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-guide-content p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 620px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }
        .hero-guide-content .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .hero-guide-content .btn-primary-custom {
            background: var(--primary);
            color: #fff;
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: all var(--transition);
            box-shadow: 0 6px 24px rgba(230, 57, 70, 0.35);
        }
        .hero-guide-content .btn-primary-custom:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(230, 57, 70, 0.45);
            color: #fff;
        }
        .hero-guide-content .btn-outline-custom {
            background: transparent;
            color: #fff;
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid rgba(255, 255, 255, 0.3);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: all var(--transition);
        }
        .hero-guide-content .btn-outline-custom:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
            transform: translateY(-2px);
        }
        @media (max-width: 768px) {
            .hero-guide {
                padding: 120px 0 60px;
            }
            .hero-guide-content h1 {
                font-size: 2rem;
            }
            .hero-guide-content p {
                font-size: 1rem;
            }
            .hero-guide-content .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .hero-guide-content .btn-primary-custom,
            .hero-guide-content .btn-outline-custom {
                width: 100%;
                justify-content: center;
                max-width: 320px;
            }
        }
        @media (max-width: 576px) {
            .hero-guide-content h1 {
                font-size: 1.6rem;
            }
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-light);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-header {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 56px;
        }
        .section-header .section-label {
            display: inline-block;
            background: rgba(230, 57, 70, 0.1);
            color: var(--primary);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 16px;
        }
        .section-header h2 {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            line-height: 1.25;
        }
        .section-header p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .section-dark .section-header h2 {
            color: #fff;
        }
        .section-dark .section-header p {
            color: rgba(255, 255, 255, 0.7);
        }
        .section-dark .section-header .section-label {
            background: rgba(255, 255, 255, 0.1);
            color: var(--accent-light);
        }
        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .section-header {
                margin-bottom: 40px;
            }
            .section-header h2 {
                font-size: 1.8rem;
            }
            .section-header p {
                font-size: 0.95rem;
            }
        }
        @media (max-width: 576px) {
            .section-header h2 {
                font-size: 1.5rem;
            }
        }

        /* ===== 快速入门步骤 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .step-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            position: relative;
        }
        .step-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .step-card .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 20px;
            box-shadow: 0 6px 20px rgba(230, 57, 70, 0.25);
        }
        .step-card .step-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .step-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .step-card p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .step-card .step-arrow {
            position: absolute;
            top: 50%;
            right: -18px;
            transform: translateY(-50%);
            font-size: 1.2rem;
            color: var(--border-color);
        }
        .steps-grid .step-card:last-child .step-arrow {
            display: none;
        }
        @media (max-width: 992px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .step-card .step-arrow {
                display: none;
            }
        }
        @media (max-width: 576px) {
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .step-card {
                padding: 24px 20px;
            }
        }

        /* ===== 平台功能卡片 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 36px 28px;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .feature-card .feature-icon {
            width: 60px;
            height: 60px;
            background: rgba(230, 57, 70, 0.08);
            border-radius: var(--radius-sm);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--primary);
            margin-bottom: 20px;
            transition: all var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: var(--primary);
            color: #fff;
        }
        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
        }
        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 0;
        }
        .feature-card .feature-tag {
            display: inline-block;
            margin-top: 16px;
            background: rgba(230, 57, 70, 0.06);
            color: var(--primary);
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 500;
        }
        @media (max-width: 992px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }
        @media (max-width: 576px) {
            .features-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .feature-card {
                padding: 24px 20px;
            }
        }

        /* ===== 操作流程 ===== */
        .flow-section {
            background: var(--bg-light);
        }
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .flow-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            display: flex;
            gap: 20px;
            align-items: flex-start;
        }
        .flow-item:hover {
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .flow-item .flow-num {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            background: var(--secondary);
            color: #fff;
            border-radius: var(--radius-sm);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 700;
        }
        .flow-item .flow-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-primary);
        }
        .flow-item .flow-content p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }
        @media (max-width: 992px) {
            .flow-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .flow-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .flow-item {
                padding: 20px 16px;
                flex-direction: column;
                gap: 12px;
            }
        }

        /* ===== 安全指南 ===== */
        .safety-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .safety-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition);
        }
        .safety-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-4px);
        }
        .safety-card .safety-icon {
            font-size: 2rem;
            color: var(--accent-light);
            margin-bottom: 16px;
        }
        .safety-card h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
        }
        .safety-card p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            margin-bottom: 0;
        }
        @media (max-width: 992px) {
            .safety-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .safety-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .safety-card {
                padding: 20px 16px;
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-light);
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(230, 57, 70, 0.2);
        }
        .faq-question {
            padding: 20px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-primary);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
            gap: 16px;
        }
        .faq-question:hover {
            background: rgba(230, 57, 70, 0.03);
        }
        .faq-question .faq-toggle {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(230, 57, 70, 0.08);
            border-radius: 50%;
            color: var(--primary);
            font-size: 0.8rem;
            transition: transform var(--transition);
        }
        .faq-item.active .faq-toggle {
            transform: rotate(180deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-answer {
            padding: 0 28px 20px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }
        @media (max-width: 576px) {
            .faq-question {
                padding: 16px 18px;
                font-size: 0.95rem;
            }
            .faq-answer {
                padding: 0 18px 16px;
                font-size: 0.9rem;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-gradient);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -30%;
            left: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(230, 57, 70, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }
        .cta-section .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .cta-section .btn-cta-primary {
            background: #fff;
            color: var(--primary);
            padding: 16px 40px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1.05rem;
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: all var(--transition);
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.15);
        }
        .cta-section .btn-cta-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.2);
            color: var(--primary-dark);
        }
        .cta-section .btn-cta-outline {
            background: transparent;
            color: #fff;
            padding: 16px 40px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1.05rem;
            border: 2px solid rgba(255, 255, 255, 0.3);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: all var(--transition);
        }
        .cta-section .btn-cta-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
            transform: translateY(-3px);
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 56px 0;
            }
            .cta-section h2 {
                font-size: 1.8rem;
            }
            .cta-section p {
                font-size: 1rem;
            }
            .cta-section .cta-actions {
                flex-direction: column;
                align-items: center;
            }
            .cta-section .btn-cta-primary,
            .cta-section .btn-cta-outline {
                width: 100%;
                justify-content: center;
                max-width: 320px;
            }
        }
        @media (max-width: 576px) {
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 30px;
        }
        .footer .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer .footer-brand .navbar-brand {
            color: #fff;
            margin-bottom: 16px;
            display: inline-flex;
        }
        .footer .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
            max-width: 320px;
        }
        .footer h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }
        .footer ul li {
            margin-bottom: 10px;
        }
        .footer ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: color var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .footer ul li a:hover {
            color: #fff;
        }
        .footer ul li a i {
            font-size: 0.85rem;
            color: var(--accent-light);
        }
        .footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            margin: 0 4px;
        }
        .footer .footer-bottom a:hover {
            color: #fff;
        }
        @media (max-width: 992px) {
            .footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 576px) {
            .footer {
                padding: 40px 0 24px;
            }
            .footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 991px) {
            .navbar-main {
                height: auto;
                min-height: var(--header-height);
            }
        }
        @media (max-width: 768px) {
            .hero-guide {
                margin-top: 70px;
            }
        }
        @media (max-width: 576px) {
            :root {
                --header-height: 68px;
            }
            .hero-guide {
                margin-top: 68px;
                padding: 100px 0 48px;
            }
        }

        /* ===== 辅助类 ===== */
        .text-gradient {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .shadow-hover {
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .shadow-hover:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .gap-8 {
            gap: 8px;
        }
        .gap-12 {
            gap: 12px;
        }
        .gap-16 {
            gap: 16px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .text-center {
            text-align: center;
        }
        .fw-700 {
            font-weight: 700;
        }

/* roulang page: article */
:root {
            --clr-primary: #0b1a2e;
            --clr-primary-light: #1a3a5c;
            --clr-accent: #d4a843;
            --clr-accent-light: #f0d78c;
            --clr-accent-dark: #b8922e;
            --clr-bg: #f5f7fa;
            --clr-card: #ffffff;
            --clr-text: #2d3748;
            --clr-text-soft: #718096;
            --clr-text-light: #a0aec0;
            --clr-border: #e2e8f0;
            --clr-success: #2d8a4e;
            --clr-danger: #c53030;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.5rem;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 20px rgba(0,0,0,0.08);
            --shadow-lg: 0 20px 40px rgba(0,0,0,0.12);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1280px;
            --content-max: 800px;
        }

        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-base);
            background: var(--clr-bg);
            color: var(--clr-text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--clr-accent); transition: color var(--transition); text-decoration: none; }
        a:hover { color: var(--clr-accent-dark); }
        input, button, textarea { font-family: inherit; }

        .container { max-width: var(--container-max); padding-left: 1.5rem; padding-right: 1.5rem; margin: 0 auto; width: 100%; }

        /* Header / Nav */
        .topbar {
            background: var(--clr-primary);
            color: rgba(255,255,255,0.7);
            font-size: 0.8rem;
            padding: 0.4rem 0;
            letter-spacing: 0.02em;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .topbar .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 0.5rem; }
        .topbar a { color: rgba(255,255,255,0.8); margin-left: 1rem; }
        .topbar a:hover { color: var(--clr-accent); }

        .navbar-main {
            background: var(--clr-primary);
            padding: 0.75rem 0;
            box-shadow: 0 4px 20px rgba(0,0,0,0.2);
            position: sticky;
            top: 0;
            z-index: 1000;
            transition: background var(--transition);
        }
        .navbar-main .container { display: flex; align-items: center; justify-content: space-between; flex-wrap: nowrap; }
        .navbar-brand {
            display: flex; align-items: center; gap: 0.6rem; color: #fff; text-decoration: none; flex-shrink: 0;
        }
        .navbar-brand:hover { color: var(--clr-accent); }
        .brand-icon {
            background: linear-gradient(135deg, var(--clr-accent), var(--clr-accent-light));
            color: var(--clr-primary);
            width: 2.4rem; height: 2.4rem; display: flex; align-items: center; justify-content: center;
            border-radius: var(--radius-sm); font-weight: 800; font-size: 1.3rem; box-shadow: 0 4px 12px rgba(212,168,67,0.3);
        }
        .brand-text { font-size: 1.35rem; font-weight: 700; letter-spacing: 0.03em; color: #fff; }
        .brand-text span { color: var(--clr-accent); }

        .navbar-toggler {
            background: transparent; border: 1px solid rgba(255,255,255,0.2); color: #fff;
            font-size: 1.3rem; padding: 0.4rem 0.8rem; border-radius: var(--radius-sm); cursor: pointer;
            transition: var(--transition);
        }
        .navbar-toggler:hover { background: rgba(255,255,255,0.1); border-color: var(--clr-accent); }

        .navbar-nav-wrap {
            display: flex; align-items: center; gap: 0.3rem; flex-wrap: wrap;
        }
        .navbar-nav-wrap .nav-link {
            color: rgba(255,255,255,0.75); padding: 0.5rem 1rem; border-radius: var(--radius-sm);
            font-size: 0.95rem; font-weight: 500; transition: var(--transition); white-space: nowrap;
        }
        .navbar-nav-wrap .nav-link:hover,
        .navbar-nav-wrap .nav-link.active { color: #fff; background: rgba(255,255,255,0.08); }
        .navbar-nav-wrap .nav-link.active { color: var(--clr-accent); background: rgba(212,168,67,0.12); }
        .navbar-nav-wrap .nav-cta {
            background: linear-gradient(135deg, var(--clr-accent), var(--clr-accent-dark));
            color: var(--clr-primary) !important; font-weight: 700; padding: 0.5rem 1.4rem;
            border-radius: var(--radius-sm); box-shadow: 0 4px 14px rgba(212,168,67,0.25);
            margin-left: 0.5rem;
        }
        .navbar-nav-wrap .nav-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(212,168,67,0.35); background: linear-gradient(135deg, var(--clr-accent-light), var(--clr-accent)); }

        /* Article Hero */
        .article-hero {
            background: linear-gradient(135deg, #0b1a2e 0%, #1a3a5c 50%, #0d2137 100%);
            padding: 3rem 0 2.5rem;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            top: -40%; right: -20%;
            width: 600px; height: 600px;
            background: radial-gradient(circle, rgba(212,168,67,0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .article-hero .container { position: relative; z-index: 1; }

        .breadcrumb-custom {
            display: flex; flex-wrap: wrap; gap: 0.4rem 0.8rem;
            font-size: 0.85rem; color: rgba(255,255,255,0.5); margin-bottom: 1.2rem;
        }
        .breadcrumb-custom a { color: rgba(255,255,255,0.65); }
        .breadcrumb-custom a:hover { color: var(--clr-accent); }
        .breadcrumb-custom .sep { color: rgba(255,255,255,0.25); }
        .breadcrumb-custom .current { color: rgba(255,255,255,0.8); }

        .article-hero h1 {
            font-size: 2.2rem; font-weight: 800; line-height: 1.3;
            margin-bottom: 1rem; letter-spacing: -0.01em;
        }
        .article-meta {
            display: flex; flex-wrap: wrap; gap: 1.2rem 2rem;
            font-size: 0.9rem; color: rgba(255,255,255,0.6);
        }
        .article-meta i { margin-right: 0.4rem; color: var(--clr-accent); }
        .article-meta .badge-cat {
            background: rgba(212,168,67,0.2); color: var(--clr-accent-light);
            padding: 0.2rem 1rem; border-radius: 20px; font-size: 0.8rem; font-weight: 600;
        }

        /* Article Main */
        .article-main { padding: 3rem 0 2rem; }
        .article-content-wrap {
            max-width: var(--content-max); margin: 0 auto;
            background: var(--clr-card); border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md); padding: 2.5rem;
        }
        .article-content {
            font-size: 1.05rem; line-height: 1.9; color: var(--clr-text);
        }
        .article-content p { margin-bottom: 1.4rem; }
        .article-content h2, .article-content h3, .article-content h4 {
            margin-top: 2rem; margin-bottom: 1rem; font-weight: 700; color: var(--clr-primary);
        }
        .article-content h2 { font-size: 1.6rem; }
        .article-content h3 { font-size: 1.3rem; }
        .article-content ul, .article-content ol { margin-bottom: 1.4rem; padding-left: 1.5rem; }
        .article-content li { margin-bottom: 0.4rem; }
        .article-content img { border-radius: var(--radius-md); margin: 1.5rem auto; box-shadow: var(--shadow-sm); }
        .article-content blockquote {
            border-left: 4px solid var(--clr-accent); background: rgba(212,168,67,0.06);
            padding: 1rem 1.5rem; margin: 1.5rem 0; border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--clr-text-soft); font-style: italic;
        }
        .article-content a { color: var(--clr-accent-dark); text-decoration: underline; }
        .article-content a:hover { color: var(--clr-accent); }

        /* Article Footer */
        .article-footer {
            max-width: var(--content-max); margin: 1.5rem auto 0;
            display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center;
            gap: 1rem; border-top: 1px solid var(--clr-border); padding-top: 1.5rem;
        }
        .article-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
        .article-tags .tag {
            background: var(--clr-bg); color: var(--clr-text-soft); padding: 0.25rem 1rem;
            border-radius: 20px; font-size: 0.8rem; border: 1px solid var(--clr-border);
            transition: var(--transition);
        }
        .article-tags .tag:hover { background: var(--clr-accent); color: #fff; border-color: var(--clr-accent); }
        .article-share { display: flex; gap: 0.6rem; }
        .article-share a {
            width: 2.2rem; height: 2.2rem; display: flex; align-items: center; justify-content: center;
            border-radius: 50%; background: var(--clr-bg); color: var(--clr-text-soft);
            border: 1px solid var(--clr-border); transition: var(--transition);
        }
        .article-share a:hover { background: var(--clr-accent); color: #fff; border-color: var(--clr-accent); }

        /* Prev / Next */
        .article-pn {
            max-width: var(--content-max); margin: 2rem auto 0;
            display: flex; flex-wrap: wrap; gap: 1rem;
        }
        .article-pn a {
            flex: 1; min-width: 200px; padding: 1.2rem 1.5rem;
            background: var(--clr-card); border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm); border: 1px solid var(--clr-border);
            transition: var(--transition); color: var(--clr-text);
        }
        .article-pn a:hover { box-shadow: var(--shadow-md); border-color: var(--clr-accent); transform: translateY(-2px); }
        .article-pn .pn-label { font-size: 0.8rem; color: var(--clr-text-soft); margin-bottom: 0.3rem; }
        .article-pn .pn-title { font-weight: 600; font-size: 0.95rem; }
        .article-pn .pn-empty { opacity: 0.4; pointer-events: none; }

        /* Related */
        .related-section { padding: 3rem 0; background: var(--clr-bg); }
        .related-section .section-title {
            text-align: center; margin-bottom: 2.5rem;
            font-size: 1.8rem; font-weight: 800; color: var(--clr-primary);
        }
        .related-section .section-title span { color: var(--clr-accent); }
        .related-grid {
            display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
        }
        .related-card {
            background: var(--clr-card); border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm); border: 1px solid var(--clr-border);
            padding: 1.5rem; transition: var(--transition);
        }
        .related-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: var(--clr-accent); }
        .related-card .rc-cat {
            font-size: 0.75rem; color: var(--clr-accent); font-weight: 600;
            text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.5rem;
        }
        .related-card .rc-title {
            font-size: 1.05rem; font-weight: 700; color: var(--clr-primary);
            margin-bottom: 0.5rem; line-height: 1.4;
        }
        .related-card .rc-title a { color: inherit; }
        .related-card .rc-title a:hover { color: var(--clr-accent); }
        .related-card .rc-excerpt {
            font-size: 0.9rem; color: var(--clr-text-soft);
            display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
        }

        /* CTA */
        .article-cta {
            background: linear-gradient(135deg, var(--clr-primary) 0%, #1a3a5c 100%);
            padding: 3.5rem 0; text-align: center; color: #fff;
        }
        .article-cta h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: 0.8rem; }
        .article-cta p { color: rgba(255,255,255,0.7); margin-bottom: 1.8rem; font-size: 1.05rem; }
        .article-cta .btn-cta {
            display: inline-flex; align-items: center; gap: 0.6rem;
            background: linear-gradient(135deg, var(--clr-accent), var(--clr-accent-dark));
            color: var(--clr-primary); font-weight: 700; padding: 0.85rem 2.5rem;
            border-radius: var(--radius-sm); font-size: 1.05rem;
            box-shadow: 0 6px 24px rgba(212,168,67,0.3); transition: var(--transition);
            border: none; cursor: pointer;
        }
        .article-cta .btn-cta:hover { transform: translateY(-3px); box-shadow: 0 10px 30px rgba(212,168,67,0.4); }

        /* Not Found */
        .not-found-wrap { text-align: center; padding: 4rem 2rem; }
        .not-found-wrap .nf-icon { font-size: 4rem; color: var(--clr-text-light); margin-bottom: 1rem; }
        .not-found-wrap h2 { font-size: 1.6rem; font-weight: 700; color: var(--clr-primary); margin-bottom: 0.5rem; }
        .not-found-wrap p { color: var(--clr-text-soft); margin-bottom: 1.5rem; }
        .not-found-wrap .btn-back {
            display: inline-flex; align-items: center; gap: 0.5rem;
            background: var(--clr-accent); color: var(--clr-primary); font-weight: 600;
            padding: 0.65rem 2rem; border-radius: var(--radius-sm); transition: var(--transition);
        }
        .not-found-wrap .btn-back:hover { background: var(--clr-accent-dark); transform: translateY(-2px); }

        /* Footer */
        .footer {
            background: var(--clr-primary); color: rgba(255,255,255,0.7);
            padding: 3.5rem 0 0; border-top: 3px solid var(--clr-accent);
        }
        .footer-grid {
            display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 2.5rem;
        }
        .footer-brand .navbar-brand { margin-bottom: 1rem; }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.5); max-width: 320px; }
        .footer h4 { color: #fff; font-size: 1rem; font-weight: 700; margin-bottom: 1.2rem; letter-spacing: 0.02em; }
        .footer ul { list-style: none; padding: 0; }
        .footer ul li { margin-bottom: 0.6rem; }
        .footer ul li a { color: rgba(255,255,255,0.55); font-size: 0.9rem; transition: var(--transition); }
        .footer ul li a:hover { color: var(--clr-accent); padding-left: 4px; }
        .footer ul li a i { margin-right: 0.5rem; width: 1.1rem; text-align: center; }
        .footer-bottom {
            margin-top: 2.5rem; padding: 1.2rem 0; border-top: 1px solid rgba(255,255,255,0.06);
            display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center;
            font-size: 0.82rem; color: rgba(255,255,255,0.35);
        }
        .footer-bottom a { color: rgba(255,255,255,0.45); margin: 0 0.3rem; }
        .footer-bottom a:hover { color: var(--clr-accent); }

        /* Responsive */
        @media (max-width: 1024px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .article-hero h1 { font-size: 1.6rem; }
            .article-content-wrap { padding: 1.5rem; }
            .article-content { font-size: 1rem; }
            .related-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
            .article-pn { flex-direction: column; }
            .article-pn a { min-width: auto; }
            .breadcrumb-custom { font-size: 0.78rem; }
            .article-meta { gap: 0.8rem 1.2rem; font-size: 0.82rem; }
        }
        @media (max-width: 576px) {
            .container { padding-left: 1rem; padding-right: 1rem; }
            .article-hero { padding: 2rem 0 1.5rem; }
            .article-hero h1 { font-size: 1.35rem; }
            .article-content-wrap { padding: 1.2rem; border-radius: var(--radius-md); }
            .article-cta h2 { font-size: 1.3rem; }
            .navbar-nav-wrap .nav-link { font-size: 0.85rem; padding: 0.4rem 0.7rem; }
            .brand-text { font-size: 1.1rem; }
            .brand-icon { width: 2rem; height: 2rem; font-size: 1.1rem; }
            .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
        }
        @media (max-width: 400px) {
            .article-meta { flex-direction: column; gap: 0.4rem; }
        }

/* roulang page: category2 */
/* ===== Design Variables ===== */
        :root {
            --primary: #d42a2f;
            --primary-dark: #b01e22;
            --primary-light: #fbecec;
            --secondary: #1e2a4a;
            --secondary-light: #2a3a5e;
            --accent: #f5a623;
            --accent-light: #fef0d9;
            --bg-body: #f8f9fc;
            --bg-card: #ffffff;
            --bg-dark: #0f1629;
            --bg-section-alt: #f0f2f8;
            --text-dark: #1a1a2e;
            --text-body: #3a3a4e;
            --text-muted: #7a7a8e;
            --text-light: #f0f0f5;
            --border-color: #e5e7ef;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.07);
            --shadow-lg: 0 14px 40px rgba(0,0,0,0.10);
            --shadow-hover: 0 18px 48px rgba(212,42,47,0.12);
            --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --max-width: 1200px;
            --header-height: 76px;
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-body);
            padding-top: var(--header-height);
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

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

        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== Typography ===== */
        h1, h2, h3, h4, h5, h6 {
            color: var(--text-dark);
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.01em;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 0.5rem;
            color: var(--text-dark);
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto 2.5rem auto;
            text-align: center;
            line-height: 1.6;
        }
        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }

        /* ===== Header & Nav ===== */
        .navbar-main {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--header-height);
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 1px 4px rgba(0,0,0,0.03);
            transition: var(--transition);
        }

        .navbar-main .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
            padding: 6px 0;
        }
        .navbar-brand:hover {
            text-decoration: none;
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: 1.3rem;
            font-weight: 800;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 12px rgba(212,42,47,0.25);
            flex-shrink: 0;
        }

        .brand-text {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-dark);
            letter-spacing: 0.5px;
        }
        .brand-text span {
            color: var(--primary);
        }

        .navbar-toggler {
            border: none;
            background: transparent;
            font-size: 1.5rem;
            color: var(--text-dark);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            cursor: pointer;
        }
        .navbar-toggler:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .navbar-toggler:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

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

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            white-space: nowrap;
            text-decoration: none;
            position: relative;
        }
        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
            text-decoration: none;
        }
        .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }

        .nav-link.nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 8px 22px;
            border-radius: var(--radius-md);
            box-shadow: 0 4px 14px rgba(212,42,47,0.30);
        }
        .nav-link.nav-cta:hover {
            background: linear-gradient(135deg, var(--primary-dark), #8a1619);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(212,42,47,0.35);
        }
        .nav-link.nav-cta.active::after {
            display: none;
        }

        /* ===== Hero ===== */
        .hero-events {
            position: relative;
            padding: 80px 0 70px;
            background: linear-gradient(145deg, var(--secondary) 0%, #0f1629 100%);
            overflow: hidden;
            color: var(--text-light);
        }

        .hero-events::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(212,42,47,0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-events::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(245,166,35,0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .hero-events .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,255,255,0.10);
            backdrop-filter: blur(6px);
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 0.85rem;
            color: var(--accent);
            border: 1px solid rgba(255,255,255,0.08);
            margin-bottom: 24px;
            font-weight: 500;
        }
        .hero-events .hero-badge i {
            font-size: 0.75rem;
        }

        .hero-events h1 {
            font-size: 3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }
        .hero-events h1 span {
            background: linear-gradient(135deg, var(--accent), #ffc857);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-events .hero-desc {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.75);
            max-width: 620px;
            line-height: 1.7;
            margin-bottom: 32px;
        }

        .hero-events .hero-stats {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
            margin-bottom: 32px;
        }
        .hero-events .hero-stats .stat-item {
            text-align: center;
        }
        .hero-events .hero-stats .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .hero-events .hero-stats .stat-label {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.55);
            margin-top: 2px;
        }

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

        .hero-events .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 34px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border: none;
            border-radius: var(--radius-md);
            box-shadow: 0 6px 24px rgba(212,42,47,0.35);
            transition: var(--transition);
            cursor: pointer;
            text-decoration: none;
        }
        .hero-events .btn-primary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(212,42,47,0.45);
            color: #fff;
        }

        .hero-events .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 34px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid rgba(255,255,255,0.25);
            border-radius: var(--radius-md);
            transition: var(--transition);
            cursor: pointer;
            text-decoration: none;
        }
        .hero-events .btn-outline-custom:hover {
            background: rgba(255,255,255,0.08);
            border-color: rgba(255,255,255,0.45);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== Section Spacing ===== */
        section {
            padding: 70px 0;
        }
        .section-alt {
            background: var(--bg-section-alt);
        }

        /* ===== Event Category Tabs ===== */
        .event-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-bottom: 40px;
        }
        .event-tab {
            padding: 10px 28px;
            font-size: 0.9rem;
            font-weight: 600;
            border-radius: 40px;
            border: 2px solid var(--border-color);
            background: var(--bg-card);
            color: var(--text-body);
            cursor: pointer;
            transition: var(--transition);
        }
        .event-tab:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }
        .event-tab.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 16px rgba(212,42,47,0.25);
        }

        /* ===== Event Cards ===== */
        .event-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 28px;
        }

        .event-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .event-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }

        .event-card .card-img {
            position: relative;
            height: 190px;
            overflow: hidden;
            background: var(--bg-section-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 3rem;
            color: var(--text-muted);
        }
        .event-card .card-img .img-placeholder {
            width: 100%;
            height: 100%;
            object-fit: cover;
            background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.15);
            font-size: 4rem;
        }
        .event-card .card-img .event-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 4px 16px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 700;
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 12px rgba(212,42,47,0.30);
        }
        .event-card .card-img .event-tag.hot {
            background: var(--accent);
            color: var(--text-dark);
        }
        .event-card .card-img .event-tag.new {
            background: #28a745;
        }
        .event-card .card-img .event-tag.vip {
            background: linear-gradient(135deg, #b8860b, #daa520);
        }

        .event-card .card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .event-card .card-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
        }
        .event-card .card-body .event-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .event-card .card-body .event-meta i {
            margin-right: 4px;
        }
        .event-card .card-body p {
            font-size: 0.92rem;
            color: var(--text-body);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 16px;
        }
        .event-card .card-body .event-reward {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent-light);
            color: #8a6d00;
            padding: 4px 16px;
            border-radius: 30px;
            font-size: 0.82rem;
            font-weight: 600;
            margin-bottom: 16px;
            align-self: flex-start;
        }
        .event-card .card-body .event-reward i {
            color: var(--accent);
        }

        .event-card .card-footer-action {
            padding: 0 24px 22px;
            display: flex;
            gap: 12px;
            align-items: center;
        }
        .event-card .card-footer-action .btn-event {
            flex: 1;
            padding: 10px 20px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
            cursor: pointer;
            text-align: center;
            text-decoration: none;
        }
        .event-card .card-footer-action .btn-event:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(212,42,47,0.25);
            color: #fff;
        }
        .event-card .card-footer-action .btn-event.btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .event-card .card-footer-action .btn-event.btn-outline:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ===== Features ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 28px;
        }
        .feature-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 26px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .feature-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .feature-item .feat-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 18px;
            background: var(--primary-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--primary);
        }
        .feature-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .feature-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

        /* ===== How It Works ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 30px;
            counter-reset: step;
        }
        .step-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 34px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            position: relative;
            transition: var(--transition);
        }
        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .step-item .step-num {
            width: 48px;
            height: 48px;
            margin: 0 auto 16px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: 1.2rem;
            font-weight: 800;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 14px rgba(212,42,47,0.25);
        }
        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

        /* ===== Stats / Data ===== */
        .stats-section {
            background: linear-gradient(145deg, var(--secondary), #0f1629);
            color: var(--text-light);
            padding: 60px 0;
        }
        .stats-section .section-title,
        .stats-section .section-subtitle {
            color: #fff;
        }
        .stats-section .section-subtitle {
            color: rgba(255,255,255,0.65);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 28px;
            text-align: center;
        }
        .stat-block {
            padding: 24px 16px;
            background: rgba(255,255,255,0.06);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,255,255,0.06);
            backdrop-filter: blur(6px);
        }
        .stat-block .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .stat-block .stat-label {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
            margin-top: 6px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-item .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-item .faq-question:hover {
            background: var(--primary-light);
        }
        .faq-item .faq-question i {
            color: var(--primary);
            transition: var(--transition);
        }
        .faq-item .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }
        .faq-item .faq-answer.show {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(145deg, var(--primary), var(--primary-dark));
            color: #fff;
            text-align: center;
            padding: 70px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
            border-radius: 50%;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.8);
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            padding: 16px 40px;
            background: #fff;
            color: var(--primary);
            font-weight: 700;
            font-size: 1.05rem;
            border: none;
            border-radius: var(--radius-md);
            box-shadow: 0 6px 24px rgba(0,0,0,0.15);
            transition: var(--transition);
            cursor: pointer;
            text-decoration: none;
        }
        .cta-section .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(0,0,0,0.20);
            color: var(--primary-dark);
            background: #f8f8f8;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 30px;
            font-size: 0.9rem;
        }
        .footer .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer .footer-brand .navbar-brand {
            margin-bottom: 14px;
            display: inline-flex;
        }
        .footer .footer-brand .navbar-brand .brand-text {
            color: #fff;
        }
        .footer .footer-brand p {
            color: rgba(255,255,255,0.5);
            line-height: 1.7;
            font-size: 0.88rem;
            max-width: 300px;
        }
        .footer h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer ul li {
            margin-bottom: 10px;
        }
        .footer ul li a {
            color: rgba(255,255,255,0.55);
            text-decoration: none;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
        }
        .footer ul li a:hover {
            color: var(--accent);
        }
        .footer .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            color: rgba(255,255,255,0.35);
            font-size: 0.82rem;
        }
        .footer .footer-bottom a {
            color: rgba(255,255,255,0.4);
            text-decoration: none;
        }
        .footer .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-events h1 {
                font-size: 2.4rem;
            }
            .footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            .hero-events {
                padding: 60px 0 50px;
            }
            .hero-events h1 {
                font-size: 1.9rem;
            }
            .hero-events .hero-desc {
                font-size: 0.95rem;
            }
            .hero-events .hero-stats {
                gap: 24px;
            }
            .hero-events .hero-stats .stat-number {
                font-size: 1.5rem;
            }

            .section-title {
                font-size: 1.7rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
            }

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

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

            .footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer .footer-bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }

            .navbar-nav-wrap {
                padding: 16px 0;
                gap: 4px;
            }
            .nav-link {
                padding: 8px 16px;
                font-size: 0.9rem;
                width: 100%;
                justify-content: flex-start;
            }
            .nav-link.active::after {
                display: none;
            }
            .navbar-collapse {
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(12px);
                border-radius: var(--radius-md);
                box-shadow: var(--shadow-lg);
                padding: 8px 12px;
                margin-top: 8px;
            }
            .cta-section h2 {
                font-size: 1.7rem;
            }
            .cta-section .btn-cta {
                padding: 14px 30px;
                font-size: 0.95rem;
            }
        }

        @media (max-width: 520px) {
            .hero-events h1 {
                font-size: 1.6rem;
            }
            .hero-events .hero-actions {
                flex-direction: column;
            }
            .hero-events .hero-actions .btn-primary-custom,
            .hero-events .hero-actions .btn-outline-custom {
                width: 100%;
                justify-content: center;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .event-tabs {
                gap: 6px;
            }
            .event-tab {
                padding: 8px 18px;
                font-size: 0.8rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .event-card .card-body {
                padding: 18px 18px 20px;
            }
            .event-card .card-footer-action {
                padding: 0 18px 18px;
            }
            .event-card .card-img {
                height: 150px;
            }
        }

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

        /* ===== Slight bootstrap overrides ===== */
        .btn-check:focus+.btn,
        .btn:focus {
            outline: none;
            box-shadow: none;
        }
        .form-control:focus {
            box-shadow: 0 0 0 3px rgba(212,42,47,0.15);
            border-color: var(--primary);
        }