/* roulang page: index */
:root {
            --primary: #ff6b35;
            --primary-dark: #e55a25;
            --primary-light: #ff8f5e;
            --secondary: #00d4aa;
            --secondary-dark: #00b894;
            --accent: #6c5ce7;
            --bg-dark: #0a0e1a;
            --bg-card: #12182b;
            --bg-card-hover: #1a2240;
            --text-light: #f0f4ff;
            --text-muted: #8899bb;
            --border-color: #1e2a4a;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 8px 32px rgba(0,0,0,0.4);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.6);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background: var(--bg-dark);
            color: var(--text-light);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            transition: var(--transition);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

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

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
            background: linear-gradient(135deg, #f0f4ff 0%, #ff6b35 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 600px;
            margin-bottom: 48px;
            line-height: 1.6;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            letter-spacing: 0.01em;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 4px 20px rgba(255,107,53,0.35);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 32px rgba(255,107,53,0.5);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 12px rgba(255,107,53,0.3);
        }

        .btn-secondary {
            background: rgba(255,255,255,0.08);
            color: var(--text-light);
            border: 1px solid rgba(255,255,255,0.15);
            backdrop-filter: blur(12px);
        }

        .btn-secondary:hover {
            background: rgba(255,255,255,0.15);
            border-color: rgba(255,255,255,0.3);
            transform: translateY(-2px);
        }

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

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 4px 20px rgba(255,107,53,0.3);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            background: rgba(255,107,53,0.15);
            color: var(--primary-light);
            border: 1px solid rgba(255,107,53,0.2);
        }

        .badge-secondary {
            background: rgba(0,212,170,0.15);
            color: var(--secondary);
            border-color: rgba(0,212,170,0.2);
        }

        .badge-accent {
            background: rgba(108,92,231,0.15);
            color: #a29bfe;
            border-color: rgba(108,92,231,0.2);
        }

        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            overflow: hidden;
        }

        .card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(255,107,53,0.2);
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }

        /* ===== 导航 ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10,14,26,0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255,255,255,0.05);
            transition: var(--transition);
        }

        .header.scrolled {
            background: rgba(10,14,26,0.98);
            box-shadow: 0 4px 30px rgba(0,0,0,0.5);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            padding: 0 20px;
            max-width: 1200px;
            margin: 0 auto;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-light);
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #fff;
            flex-shrink: 0;
        }

        .logo span {
            background: linear-gradient(135deg, #f0f4ff 0%, var(--primary-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-desktop a {
            padding: 8px 20px;
            border-radius: 8px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            position: relative;
        }

        .nav-desktop a:hover {
            color: var(--text-light);
            background: rgba(255,255,255,0.05);
        }

        .nav-desktop a.active {
            color: var(--primary);
            background: rgba(255,107,53,0.1);
        }

        .nav-desktop a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }

        .nav-cta {
            padding: 10px 24px !important;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
            color: #fff !important;
            border-radius: 50px !important;
            font-weight: 600 !important;
            box-shadow: 0 4px 16px rgba(255,107,53,0.3);
        }

        .nav-cta:hover {
            transform: translateY(-2px) !important;
            box-shadow: 0 6px 24px rgba(255,107,53,0.5) !important;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary)) !important;
        }

        /* 移动端底部Tab */
        .mobile-tab-bar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1001;
            background: rgba(10,14,26,0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-top: 1px solid rgba(255,255,255,0.06);
            padding: 6px 0;
            padding-bottom: max(6px, env(safe-area-inset-bottom));
        }

        .mobile-tab-inner {
            display: flex;
            justify-content: space-around;
            align-items: center;
            max-width: 500px;
            margin: 0 auto;
        }

        .mobile-tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            padding: 6px 12px;
            border-radius: 12px;
            font-size: 0.7rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            min-width: 56px;
        }

        .mobile-tab-item i {
            font-size: 1.3rem;
            transition: var(--transition);
        }

        .mobile-tab-item.active {
            color: var(--primary);
        }

        .mobile-tab-item.active i {
            text-shadow: 0 0 20px rgba(255,107,53,0.4);
        }

        .mobile-tab-item:hover {
            color: var(--text-light);
        }

        /* ===== Hero ===== */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            padding: 120px 0 80px;
            background: var(--bg-dark);
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.25;
            z-index: 0;
        }

        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(10,14,26,0.3) 0%, var(--bg-dark) 70%);
        }

        .hero-overlay-gradient {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10,14,26,0.9) 0%, rgba(255,107,53,0.08) 50%, rgba(10,14,26,0.8) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            border-radius: 50px;
            background: rgba(255,107,53,0.12);
            border: 1px solid rgba(255,107,53,0.2);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--primary-light);
            margin-bottom: 24px;
            backdrop-filter: blur(8px);
        }

        .hero-badge i {
            font-size: 0.8rem;
        }

        .hero h1 {
            font-size: 3.8rem;
            font-weight: 900;
            line-height: 1.1;
            letter-spacing: -0.03em;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #ffffff 0%, #ff8f5e 50%, #f0f4ff 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero p {
            font-size: 1.2rem;
            color: var(--text-muted);
            max-width: 600px;
            line-height: 1.7;
            margin-bottom: 36px;
        }

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

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            padding-top: 32px;
            border-top: 1px solid rgba(255,255,255,0.06);
        }

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

        .hero-stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: -0.02em;
        }

        .hero-stat-number span {
            color: var(--primary);
        }

        .hero-stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

        /* ===== 特色板块 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 36px 28px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

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

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

        .feature-card:hover {
            transform: translateY(-6px);
            border-color: rgba(255,107,53,0.15);
            box-shadow: var(--shadow);
            background: var(--bg-card-hover);
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            margin-bottom: 20px;
            background: rgba(255,107,53,0.12);
            color: var(--primary);
        }

        .feature-icon.green {
            background: rgba(0,212,170,0.12);
            color: var(--secondary);
        }

        .feature-icon.purple {
            background: rgba(108,92,231,0.12);
            color: #a29bfe;
        }

        .feature-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-light);
        }

        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== 运动装备/服务卡片 ===== */
        .equipment-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .equip-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .equip-card:hover {
            transform: translateY(-6px);
            border-color: rgba(255,107,53,0.2);
            box-shadow: var(--shadow);
        }

        .equip-card img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            transition: var(--transition);
        }

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

        .equip-body {
            padding: 24px 20px 20px;
        }

        .equip-body .badge {
            margin-bottom: 12px;
        }

        .equip-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-light);
        }

        .equip-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .equip-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 12px;
            border-top: 1px solid rgba(255,255,255,0.05);
        }

        .equip-price {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary);
        }

        .equip-link {
            font-size: 0.9rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .equip-link:hover {
            color: var(--primary);
        }

        /* ===== CMS资讯列表 ===== */
        .cms-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .cms-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 28px 24px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .cms-card:hover {
            transform: translateY(-4px);
            border-color: rgba(255,107,53,0.15);
            box-shadow: var(--shadow);
            background: var(--bg-card-hover);
        }

        .cms-card .cms-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 12px;
        }

        .cms-card .cms-meta .cms-cat {
            color: var(--primary);
            font-weight: 500;
        }

        .cms-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-light);
            line-height: 1.4;
        }

        .cms-card .cms-excerpt {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 16px;
        }

        .cms-card .cms-readmore {
            font-size: 0.9rem;
            color: var(--primary);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .cms-card .cms-readmore:hover {
            gap: 12px;
        }

        .cms-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px 20px;
            color: var(--text-muted);
            font-size: 1.05rem;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px dashed var(--border-color);
        }

        /* ===== 数据统计 ===== */
        .stats-section {
            background: linear-gradient(135deg, rgba(255,107,53,0.05) 0%, rgba(108,92,231,0.05) 100%);
            border-top: 1px solid rgba(255,255,255,0.04);
            border-bottom: 1px solid rgba(255,255,255,0.04);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }

        .stat-item .stat-number {
            font-size: 2.8rem;
            font-weight: 900;
            letter-spacing: -0.03em;
            background: linear-gradient(135deg, #f0f4ff 0%, var(--primary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .stat-item .stat-label {
            font-size: 1rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ===== 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: rgba(255,107,53,0.15);
        }

        .faq-question {
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-light);
            transition: var(--transition);
            background: transparent;
            width: 100%;
            text-align: left;
            border: none;
            gap: 16px;
        }

        .faq-question i {
            color: var(--primary);
            font-size: 1.1rem;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-question.open i {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 24px 20px;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }

        .faq-answer.open {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(255,107,53,0.08) 0%, rgba(108,92,231,0.08) 100%);
            border-top: 1px solid rgba(255,255,255,0.04);
            border-bottom: 1px solid rgba(255,255,255,0.04);
        }

        .cta-box {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 60px 48px;
            text-align: center;
            border: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent), var(--secondary));
        }

        .cta-box h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .cta-box p {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 32px;
        }

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

        /* ===== 合作品牌/教练墙 ===== */
        .brands-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 20px;
            align-items: center;
        }

        .brand-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            padding: 20px 16px;
            text-align: center;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .brand-item:hover {
            border-color: rgba(255,107,53,0.15);
            transform: translateY(-2px);
            color: var(--text-light);
        }

        .brand-item i {
            font-size: 1.8rem;
            display: block;
            margin-bottom: 8px;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .brand-item:hover i {
            color: var(--primary);
        }

        /* ===== 页脚 ===== */
        .footer {
            background: rgba(10,14,26,0.95);
            border-top: 1px solid rgba(255,255,255,0.04);
            padding: 60px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

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

        .footer-brand p {
            font-size: 0.92rem;
            color: var(--text-muted);
            max-width: 360px;
            line-height: 1.7;
        }

        .footer h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 16px;
        }

        .footer a {
            display: block;
            font-size: 0.92rem;
            color: var(--text-muted);
            padding: 4px 0;
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.04);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .footer-bottom a {
            display: inline;
            padding: 0;
            font-size: 0.85rem;
        }

        .footer-bottom a:hover {
            padding-left: 0;
            color: var(--primary);
        }

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

        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--text-muted);
            padding: 0;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: rgba(255,107,53,0.15);
            color: var(--primary);
            padding: 0;
            transform: translateY(-2px);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .equipment-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .brands-grid {
                grid-template-columns: repeat(4, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
            .section-title {
                font-size: 1.9rem;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }
            .nav-desktop {
                display: none;
            }
            .mobile-tab-bar {
                display: block;
            }
            .hero {
                padding: 100px 0 100px;
                min-height: auto;
            }
            .hero h1 {
                font-size: 2.4rem;
            }
            .hero p {
                font-size: 1.05rem;
            }
            .hero-stats {
                gap: 24px;
            }
            .hero-stat-number {
                font-size: 1.6rem;
            }
            .section-padding {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .section-subtitle {
                font-size: 1rem;
                margin-bottom: 32px;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .equipment-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .cms-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .stats-grid .stat-item .stat-number {
                font-size: 2rem;
            }
            .brands-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 12px;
            }
            .cta-box {
                padding: 40px 24px;
            }
            .cta-box h2 {
                font-size: 1.6rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            body {
                padding-bottom: 70px;
            }
        }

        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.9rem;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .hero-stats {
                flex-direction: column;
                gap: 16px;
            }
            .brands-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .section-title {
                font-size: 1.5rem;
            }
            .feature-card {
                padding: 24px 20px;
            }
            .equip-body {
                padding: 18px 16px 16px;
            }
            .cms-card {
                padding: 20px 18px;
            }
            .faq-question {
                font-size: 0.95rem;
                padding: 16px 18px;
            }
            .faq-answer {
                padding: 0 18px 16px;
            }
        }

        @media (min-width: 769px) {
            .mobile-tab-bar {
                display: none !important;
            }
            body {
                padding-bottom: 0 !important;
            }
        }

        /* 滚动条美化 */
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-dark);
        }
        ::-webkit-scrollbar-thumb {
            background: rgba(255,107,53,0.3);
            border-radius: 3px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: rgba(255,107,53,0.5);
        }

        /* 选中文字 */
        ::selection {
            background: rgba(255,107,53,0.3);
            color: #fff;
        }

/* roulang page: article */
:root {
            --primary: #16a34a;
            --primary-dark: #15803d;
            --primary-light: #bbf7d0;
            --accent: #d946ef;
            --accent-dark: #a21caf;
            --bg-dark: #0b1120;
            --bg-card: #111827;
            --bg-card-hover: #1e293b;
            --text-primary: #f1f5f9;
            --text-secondary: #94a3b8;
            --text-muted: #64748b;
            --border-color: #1e293b;
            --radius: 0.75rem;
            --radius-lg: 1rem;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html { scroll-behavior: smooth; }

        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a { color: inherit; text-decoration: none; transition: var(--transition); }
        img { max-width: 100%; height: auto; display: block; }
        button { cursor: pointer; font-family: inherit; }
        input, textarea { font-family: inherit; outline: none; }

        .container { max-width: 1200px; margin: 0 auto; padding: 0 1.25rem; }
        @media (min-width: 768px) { .container { padding: 0 2rem; } }
        @media (min-width: 1024px) { .container { padding: 0 2.5rem; } }

        ::-webkit-scrollbar { width: 6px; }
        ::-webkit-scrollbar-track { background: var(--bg-dark); }
        ::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }

        /* ===== HEADER ===== */
        .header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            background: rgba(11, 17, 32, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(22, 163, 74, 0.15);
            transition: var(--transition);
        }
        .header.scrolled { box-shadow: 0 4px 30px rgba(0,0,0,0.5); }
        .header-inner {
            display: flex; align-items: center; justify-content: space-between;
            max-width: 1200px; margin: 0 auto; padding: 0.6rem 1.25rem;
            height: 64px;
        }
        @media (min-width: 768px) { .header-inner { padding: 0.6rem 2rem; } }
        @media (min-width: 1024px) { .header-inner { padding: 0.6rem 2.5rem; } }

        .logo {
            display: flex; align-items: center; gap: 0.5rem;
            font-size: 1.25rem; font-weight: 800;
            color: #fff; letter-spacing: -0.02em;
            transition: var(--transition);
        }
        .logo:hover { color: var(--primary); transform: scale(1.02); }
        .logo-icon {
            width: 38px; height: 38px;
            background: linear-gradient(135deg, var(--primary), #39ff14);
            border-radius: 10px;
            display: flex; align-items: center; justify-content: center;
            font-size: 1.1rem; color: #000; box-shadow: 0 0 20px rgba(57,255,20,0.3);
        }

        .nav-desktop { display: none; align-items: center; gap: 0.25rem; }
        @media (min-width: 768px) { .nav-desktop { display: flex; } }

        .nav-desktop a {
            padding: 0.5rem 1rem; border-radius: var(--radius);
            font-size: 0.875rem; font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-desktop a:hover { color: #fff; background: rgba(22,163,74,0.1); }
        .nav-desktop a.active {
            color: #fff; background: rgba(22,163,74,0.15);
        }
        .nav-desktop a.active::after {
            content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%);
            width: 20px; height: 3px; background: var(--primary);
            border-radius: 2px; box-shadow: 0 0 10px rgba(57,255,20,0.5);
        }
        .nav-desktop a i { margin-right: 0.35rem; font-size: 0.8rem; }
        .nav-desktop a.nav-cta {
            background: linear-gradient(135deg, var(--primary), #22c55e);
            color: #000; font-weight: 700; padding: 0.5rem 1.25rem;
            border-radius: 999px; box-shadow: 0 4px 15px rgba(22,163,74,0.3);
            margin-left: 0.75rem;
        }
        .nav-desktop a.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(22,163,74,0.4); color: #000; }

        /* ===== MOBILE BOTTOM TABS ===== */
        .mobile-tabs {
            position: fixed; bottom: 0; left: 0; right: 0; z-index: 1000;
            background: rgba(11, 17, 32, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-top: 1px solid rgba(22, 163, 74, 0.15);
            display: flex; justify-content: space-around; align-items: center;
            padding: 0.35rem 0.5rem;
            padding-bottom: calc(0.35rem + env(safe-area-inset-bottom, 0px));
            box-shadow: 0 -4px 30px rgba(0,0,0,0.4);
        }
        @media (min-width: 768px) { .mobile-tabs { display: none; } }

        .mobile-tabs a {
            display: flex; flex-direction: column; align-items: center;
            gap: 0.15rem; padding: 0.35rem 0.75rem;
            font-size: 0.65rem; color: var(--text-muted);
            transition: var(--transition); border-radius: var(--radius);
            min-width: 56px;
        }
        .mobile-tabs a i { font-size: 1.15rem; transition: var(--transition); }
        .mobile-tabs a span { font-weight: 500; line-height: 1.2; }
        .mobile-tabs a:hover,
        .mobile-tabs a.active { color: var(--primary); background: rgba(22,163,74,0.1); }
        .mobile-tabs a.active i { text-shadow: 0 0 10px rgba(57,255,20,0.5); }
        .mobile-tabs a.nav-cta-mobile {
            color: var(--primary); font-weight: 600;
        }
        .mobile-tabs a.nav-cta-mobile i {
            background: linear-gradient(135deg, var(--primary), #39ff14);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent;
        }

        /* ===== HERO BANNER ===== */
        .article-hero {
            padding: 7rem 0 3rem 0;
            position: relative;
            background: linear-gradient(135deg, rgba(11,17,32,0.95), rgba(22,163,74,0.08));
            overflow: hidden;
            min-height: 320px;
            display: flex; align-items: center;
        }
        .article-hero::before {
            content: '';
            position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.15; z-index: 0;
        }
        .article-hero::after {
            content: '';
            position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(11,17,32,0.92) 40%, rgba(11,17,32,0.6) 100%);
            z-index: 1;
        }
        .article-hero .container { position: relative; z-index: 2; }

        .article-hero .breadcrumb {
            display: flex; align-items: center; gap: 0.5rem;
            font-size: 0.8rem; color: var(--text-muted); margin-bottom: 1.25rem;
            flex-wrap: wrap;
        }
        .article-hero .breadcrumb a { color: var(--text-muted); }
        .article-hero .breadcrumb a:hover { color: var(--primary); }
        .article-hero .breadcrumb .sep { color: #334155; }
        .article-hero .breadcrumb .current { color: var(--primary); font-weight: 500; }

        .article-hero h1 {
            font-size: 1.75rem; font-weight: 800; line-height: 1.3;
            color: #fff; max-width: 800px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.3);
        }
        @media (min-width: 640px) { .article-hero h1 { font-size: 2.25rem; } }
        @media (min-width: 1024px) { .article-hero h1 { font-size: 2.75rem; } }

        .article-meta {
            display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 2rem;
            margin-top: 1.25rem; font-size: 0.85rem; color: var(--text-secondary);
        }
        .article-meta .meta-item { display: flex; align-items: center; gap: 0.4rem; }
        .article-meta .meta-item i { font-size: 0.75rem; color: var(--primary); }
        .article-meta .tag {
            display: inline-block; padding: 0.15rem 0.75rem;
            border-radius: 999px; font-size: 0.7rem; font-weight: 600;
            background: rgba(22,163,74,0.15); color: var(--primary);
            border: 1px solid rgba(22,163,74,0.25);
        }

        /* ===== ARTICLE MAIN ===== */
        .article-main {
            padding: 2.5rem 0 4rem 0;
        }
        .article-layout {
            display: grid; grid-template-columns: 1fr;
            gap: 2.5rem;
        }
        @media (min-width: 900px) {
            .article-layout { grid-template-columns: 1fr 320px; }
        }

        .article-content {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            padding: 1.75rem;
            overflow: hidden;
        }
        @media (min-width: 640px) { .article-content { padding: 2.5rem; } }

        .article-content .cms-body {
            font-size: 1rem; line-height: 1.85; color: #e2e8f0;
        }
        .article-content .cms-body h2 {
            font-size: 1.4rem; font-weight: 700; margin: 2rem 0 1rem;
            color: #fff; padding-bottom: 0.5rem;
            border-bottom: 1px solid rgba(22,163,74,0.15);
        }
        .article-content .cms-body h3 {
            font-size: 1.15rem; font-weight: 600; margin: 1.5rem 0 0.75rem;
            color: #e2e8f0;
        }
        .article-content .cms-body p { margin-bottom: 1.25rem; }
        .article-content .cms-body ul, 
        .article-content .cms-body ol { margin: 1rem 0 1.25rem 1.5rem; color: #cbd5e1; }
        .article-content .cms-body li { margin-bottom: 0.4rem; }
        .article-content .cms-body a { color: var(--primary); text-decoration: underline; }
        .article-content .cms-body a:hover { color: #39ff14; }
        .article-content .cms-body blockquote {
            border-left: 4px solid var(--primary); padding: 1rem 1.5rem;
            margin: 1.5rem 0; background: rgba(22,163,74,0.05);
            border-radius: 0 var(--radius) var(--radius) 0;
            color: #94a3b8; font-style: italic;
        }
        .article-content .cms-body img { border-radius: var(--radius); margin: 1.5rem 0; }
        .article-content .cms-body pre {
            background: #0f172a; padding: 1.25rem; border-radius: var(--radius);
            overflow-x: auto; border: 1px solid #1e293b; margin: 1.5rem 0;
            font-size: 0.85rem; color: #e2e8f0;
        }
        .article-content .cms-body code {
            background: #1e293b; padding: 0.15rem 0.45rem; border-radius: 4px;
            font-size: 0.85rem; color: #f0abfc;
        }

        .article-not-found {
            text-align: center; padding: 4rem 2rem;
        }
        .article-not-found .not-found-icon {
            font-size: 3rem; color: var(--text-muted); margin-bottom: 1.5rem;
        }
        .article-not-found h2 { font-size: 1.5rem; font-weight: 700; margin-bottom: 0.75rem; }
        .article-not-found p { color: var(--text-secondary); margin-bottom: 1.5rem; }
        .article-not-found .btn-back {
            display: inline-block; padding: 0.6rem 1.5rem;
            background: var(--primary); color: #000; font-weight: 600;
            border-radius: 999px; transition: var(--transition);
        }
        .article-not-found .btn-back:hover { background: #39ff14; transform: translateY(-2px); box-shadow: 0 8px 25px rgba(57,255,20,0.3); }

        /* ===== SIDEBAR ===== */
        .article-sidebar {
            display: flex; flex-direction: column; gap: 1.5rem;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            padding: 1.5rem;
        }
        .sidebar-card h3 {
            font-size: 1rem; font-weight: 700; color: #fff;
            margin-bottom: 1rem; display: flex; align-items: center; gap: 0.5rem;
        }
        .sidebar-card h3 i { color: var(--primary); font-size: 0.9rem; }

        .sidebar-card .thumb-list { display: flex; flex-direction: column; gap: 1rem; }
        .sidebar-card .thumb-item {
            display: flex; gap: 0.75rem; align-items: flex-start;
            padding: 0.5rem; border-radius: var(--radius);
            transition: var(--transition); cursor: default;
        }
        .sidebar-card .thumb-item:hover { background: rgba(22,163,74,0.05); }
        .sidebar-card .thumb-item img {
            width: 64px; height: 48px; object-fit: cover; border-radius: 8px;
            flex-shrink: 0; background: #1e293b;
        }
        .sidebar-card .thumb-item .info { flex: 1; min-width: 0; }
        .sidebar-card .thumb-item .info .title {
            font-size: 0.8rem; font-weight: 600; color: #e2e8f0;
            display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
            overflow: hidden; line-height: 1.3;
        }
        .sidebar-card .thumb-item .info .date {
            font-size: 0.7rem; color: var(--text-muted); margin-top: 0.2rem;
        }

        .sidebar-card .cat-list { display: flex; flex-direction: column; gap: 0.35rem; }
        .sidebar-card .cat-list a {
            padding: 0.4rem 0.75rem; border-radius: var(--radius);
            font-size: 0.85rem; color: var(--text-secondary);
            display: flex; align-items: center; gap: 0.5rem;
            transition: var(--transition);
        }
        .sidebar-card .cat-list a:hover { background: rgba(22,163,74,0.08); color: #fff; }
        .sidebar-card .cat-list a i { font-size: 0.7rem; color: var(--primary); width: 16px; }

        .sidebar-cta {
            background: linear-gradient(135deg, rgba(22,163,74,0.1), rgba(168,85,247,0.05));
            border: 1px solid rgba(22,163,74,0.2);
            text-align: center; padding: 1.5rem;
        }
        .sidebar-cta .cta-icon { font-size: 2rem; color: var(--primary); margin-bottom: 0.75rem; }
        .sidebar-cta h4 { font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: 0.5rem; }
        .sidebar-cta p { font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 1rem; }
        .sidebar-cta .btn-download {
            display: inline-block; padding: 0.5rem 1.25rem;
            background: linear-gradient(135deg, var(--primary), #22c55e);
            color: #000; font-weight: 700; border-radius: 999px; font-size: 0.85rem;
            transition: var(--transition); box-shadow: 0 4px 15px rgba(22,163,74,0.3);
        }
        .sidebar-cta .btn-download:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(22,163,74,0.4); }

        /* ===== RELATED SECTION ===== */
        .related-section {
            padding: 3rem 0 4rem 0;
            border-top: 1px solid var(--border-color);
        }
        .related-section h2 {
            font-size: 1.5rem; font-weight: 700; margin-bottom: 1.5rem;
            display: flex; align-items: center; gap: 0.75rem;
        }
        .related-section h2 i { color: var(--primary); font-size: 1.2rem; }

        .related-grid {
            display: grid; grid-template-columns: 1fr;
            gap: 1.25rem;
        }
        @media (min-width: 560px) { .related-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (min-width: 900px) { .related-grid { grid-template-columns: repeat(3, 1fr); } }

        .related-card {
            background: var(--bg-card); border-radius: var(--radius-lg);
            border: 1px solid var(--border-color); overflow: hidden;
            transition: var(--transition);
        }
        .related-card:hover { border-color: rgba(22,163,74,0.3); transform: translateY(-4px); box-shadow: var(--card-hover); }
        .related-card .card-img {
            width: 100%; height: 160px; object-fit: cover; background: #1e293b;
        }
        .related-card .card-body { padding: 1.25rem; }
        .related-card .card-body .card-tag {
            display: inline-block; padding: 0.1rem 0.6rem; border-radius: 999px;
            font-size: 0.65rem; font-weight: 600; background: rgba(22,163,74,0.12);
            color: var(--primary); margin-bottom: 0.5rem;
        }
        .related-card .card-body h3 { font-size: 0.95rem; font-weight: 600; color: #fff; line-height: 1.4; margin-bottom: 0.4rem; }
        .related-card .card-body p { font-size: 0.8rem; color: var(--text-secondary); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .related-card .card-body .card-meta { font-size: 0.7rem; color: var(--text-muted); margin-top: 0.6rem; display: flex; align-items: center; gap: 0.75rem; }

        /* ===== CTA BANNER ===== */
        .cta-banner {
            padding: 3rem 0; background: linear-gradient(135deg, rgba(22,163,74,0.05), rgba(168,85,247,0.03));
            border-top: 1px solid var(--border-color);
        }
        .cta-banner .cta-inner {
            background: linear-gradient(135deg, rgba(22,163,74,0.08), rgba(22,163,74,0.02));
            border: 1px solid rgba(22,163,74,0.2);
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem; text-align: center;
        }
        @media (min-width: 640px) { .cta-banner .cta-inner { padding: 3rem; } }
        .cta-banner .cta-inner h2 {
            font-size: 1.5rem; font-weight: 700; color: #fff; margin-bottom: 0.75rem;
        }
        .cta-banner .cta-inner p {
            font-size: 0.95rem; color: var(--text-secondary); max-width: 600px; margin: 0 auto 1.5rem;
        }
        .cta-banner .cta-inner .btn-group {
            display: flex; flex-wrap: wrap; justify-content: center; gap: 0.75rem;
        }
        .cta-banner .cta-inner .btn-primary {
            padding: 0.65rem 2rem; background: linear-gradient(135deg, var(--primary), #22c55e);
            color: #000; font-weight: 700; border-radius: 999px;
            transition: var(--transition); box-shadow: 0 4px 15px rgba(22,163,74,0.3);
        }
        .cta-banner .cta-inner .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(22,163,74,0.4); }
        .cta-banner .cta-inner .btn-secondary {
            padding: 0.65rem 2rem; border: 1px solid rgba(22,163,74,0.3);
            color: var(--primary); font-weight: 600; border-radius: 999px;
            transition: var(--transition);
        }
        .cta-banner .cta-inner .btn-secondary:hover { background: rgba(22,163,74,0.1); border-color: var(--primary); }

        /* ===== FOOTER ===== */
        .footer {
            background: #0a0e1a; border-top: 1px solid rgba(22,163,74,0.1);
            padding: 3rem 0 6rem 0;
        }
        @media (min-width: 768px) { .footer { padding: 3rem 0 2rem 0; } }
        .footer .footer-grid {
            display: grid; grid-template-columns: 1fr; gap: 2rem;
        }
        @media (min-width: 640px) { .footer .footer-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (min-width: 900px) { .footer .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; } }

        .footer .footer-brand .logo { margin-bottom: 1rem; }
        .footer .footer-brand p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.7; max-width: 360px; }

        .footer h4 {
            font-size: 0.85rem; font-weight: 700; color: #e2e8f0;
            margin-bottom: 1rem; letter-spacing: 0.03em;
        }
        .footer a:not(.logo) {
            display: block; font-size: 0.8rem; color: var(--text-muted);
            padding: 0.25rem 0; transition: var(--transition);
        }
        .footer a:not(.logo):hover { color: var(--primary); padding-left: 4px; }

        .footer .footer-bottom {
            margin-top: 2.5rem; padding-top: 1.5rem;
            border-top: 1px solid rgba(22,163,74,0.08);
            display: flex; flex-direction: column; align-items: center; gap: 1rem;
            font-size: 0.75rem; color: var(--text-muted);
        }
        @media (min-width: 640px) {
            .footer .footer-bottom { flex-direction: row; justify-content: space-between; }
        }
        .footer .footer-social { display: flex; gap: 0.75rem; }
        .footer .footer-social a {
            width: 34px; height: 34px; display: flex; align-items: center; justify-content: center;
            border-radius: 50%; background: rgba(22,163,74,0.08);
            color: var(--text-muted); font-size: 0.9rem;
            transition: var(--transition); padding: 0;
        }
        .footer .footer-social a:hover { background: var(--primary); color: #000; transform: scale(1.1); }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 767px) {
            .header { height: 56px; }
            .header-inner { height: 56px; padding: 0 1rem; }
            .logo { font-size: 1.05rem; }
            .logo-icon { width: 32px; height: 32px; font-size: 0.9rem; }
            .article-hero { padding: 5rem 0 2rem 0; min-height: 220px; }
            .article-hero h1 { font-size: 1.35rem; }
            .article-content { padding: 1.25rem; }
            .article-content .cms-body { font-size: 0.92rem; }
            .article-content .cms-body h2 { font-size: 1.15rem; }
            .related-card .card-img { height: 120px; }
            .cta-banner .cta-inner h2 { font-size: 1.2rem; }
            .footer { padding-bottom: 5rem; }
        }

        @media (max-width: 399px) {
            .article-hero h1 { font-size: 1.15rem; }
            .article-meta { font-size: 0.75rem; gap: 0.6rem 1rem; }
            .article-content { padding: 1rem; }
            .sidebar-card { padding: 1rem; }
        }

        @media (min-width: 768px) and (max-width: 1023px) {
            .article-hero h1 { font-size: 1.85rem; }
        }

        /* ===== SCROLLBAR ===== */
        .article-content .cms-body::-webkit-scrollbar { width: 4px; }
        .article-content .cms-body::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 2px; }

        /* ===== ANIMATIONS ===== */
        @keyframes fadeInUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
        .article-hero .container { animation: fadeInUp 0.6s ease-out; }
        .article-main .article-layout > * { animation: fadeInUp 0.5s ease-out both; }
        .article-main .article-layout > *:nth-child(2) { animation-delay: 0.1s; }

        /* skeleton loading */
        .skeleton { background: linear-gradient(90deg, #1e293b 25%, #273548 50%, #1e293b 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: 6px; }
        @keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }

        /* tag glow */
        .tag-glow { box-shadow: 0 0 12px rgba(57,255,20,0.15); }

/* roulang page: category1 */
:root {
            --primary: #6C3CF5;
            --primary-dark: #5228D6;
            --primary-light: #8F6AF8;
            --secondary: #FF3D71;
            --accent: #00E5A0;
            --bg-dark: #0B081A;
            --bg-card: #13102A;
            --bg-card-hover: #1C1840;
            --text-main: #F0EFFF;
            --text-muted: #9895B5;
            --text-dim: #6B6890;
            --border-color: rgba(108, 60, 245, 0.25);
            --border-glow: rgba(108, 60, 245, 0.4);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(108, 60, 245, 0.1);
            --shadow-glow: 0 0 40px rgba(108, 60, 245, 0.15);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', ui-sans-serif, system-ui, -apple-system, sans-serif;
        }

        *,
        *::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-dark);
            color: var(--text-main);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

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

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== HEADER ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 8, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .header.scrolled {
            background: rgba(11, 8, 26, 0.98);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }

        .header-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            height: 70px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.35rem;
            letter-spacing: -0.5px;
            color: var(--text-main);
            transition: var(--transition);
        }

        .logo:hover {
            color: var(--primary-light);
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #fff;
            box-shadow: 0 0 20px rgba(108, 60, 245, 0.3);
        }

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

        .nav-desktop a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.925rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .nav-desktop a i {
            margin-right: 6px;
            font-size: 0.85rem;
        }

        .nav-desktop a:hover {
            color: var(--text-main);
            background: rgba(108, 60, 245, 0.1);
        }

        .nav-desktop a.active {
            color: #fff;
            background: linear-gradient(135deg, rgba(108, 60, 245, 0.2), rgba(255, 61, 113, 0.1));
            border: 1px solid var(--border-glow);
            box-shadow: 0 0 20px rgba(108, 60, 245, 0.08);
        }

        .nav-desktop a.nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            padding: 8px 22px;
            border-radius: 50px;
            font-weight: 600;
            border: none;
            box-shadow: 0 4px 20px rgba(108, 60, 245, 0.3);
        }

        .nav-desktop a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(108, 60, 245, 0.45);
        }

        /* Mobile Bottom Tab */
        .mobile-tabbar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 8, 26, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-top: 1px solid var(--border-color);
            padding: 6px 0 env(safe-area-inset-bottom, 6px) 0;
            justify-content: space-around;
        }

        .mobile-tabbar a {
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 6px 12px;
            font-size: 0.65rem;
            color: var(--text-dim);
            transition: var(--transition);
            border-radius: var(--radius-sm);
            min-width: 56px;
        }

        .mobile-tabbar a i {
            font-size: 1.2rem;
            margin-bottom: 2px;
        }

        .mobile-tabbar a.active {
            color: var(--primary-light);
        }

        .mobile-tabbar a:hover {
            color: var(--text-main);
        }

        /* ===== HERO ===== */
        .hero {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            padding: 120px 0 80px;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            isolation: isolate;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 8, 26, 0.92) 0%, rgba(11, 8, 26, 0.7) 50%, rgba(108, 60, 245, 0.15) 100%);
            z-index: 0;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 200px;
            background: linear-gradient(transparent, var(--bg-dark));
            z-index: 0;
        }

        .hero .container {
            position: relative;
            z-index: 1;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 20px;
            border-radius: 50px;
            background: rgba(108, 60, 245, 0.15);
            border: 1px solid rgba(108, 60, 245, 0.3);
            font-size: 0.85rem;
            color: var(--primary-light);
            font-weight: 500;
            margin-bottom: 24px;
            backdrop-filter: blur(10px);
        }

        .hero-badge i {
            font-size: 0.75rem;
        }

        .hero h1 {
            font-size: clamp(2.6rem, 6vw, 4.5rem);
            font-weight: 800;
            line-height: 1.1;
            letter-spacing: -1.5px;
            max-width: 800px;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #fff 30%, var(--primary-light) 70%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-sub {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 640px;
            line-height: 1.8;
            margin-bottom: 36px;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            box-shadow: 0 4px 25px rgba(108, 60, 245, 0.35);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 40px rgba(108, 60, 245, 0.5);
        }

        .btn-outline {
            background: transparent;
            color: var(--text-main);
            border: 1.5px solid var(--border-color);
            backdrop-filter: blur(10px);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            background: rgba(108, 60, 245, 0.1);
            transform: translateY(-2px);
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            margin-top: 50px;
            padding-top: 30px;
            border-top: 1px solid var(--border-color);
        }

        .hero-stat h3 {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: -1px;
        }

        .hero-stat h3 span {
            color: var(--accent);
        }

        .hero-stat p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* ===== SECTION ===== */
        .section {
            padding: 100px 0;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 4px 16px;
            border-radius: 50px;
            background: rgba(108, 60, 245, 0.12);
            border: 1px solid rgba(108, 60, 245, 0.2);
            font-size: 0.8rem;
            color: var(--primary-light);
            font-weight: 500;
            margin-bottom: 16px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .section-title {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 700;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: #fff;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.8;
        }

        .text-center {
            text-align: center;
        }

        .mx-auto {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== CARDS ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
            margin-top: 48px;
        }

        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            padding: 32px 28px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

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

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

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

        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 20px;
            background: linear-gradient(135deg, rgba(108, 60, 245, 0.15), rgba(255, 61, 113, 0.08));
            border: 1px solid rgba(108, 60, 245, 0.15);
        }

        .card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: #fff;
        }

        .card p {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
        }

        .card-tag {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.7rem;
            font-weight: 500;
            background: rgba(0, 229, 160, 0.12);
            color: var(--accent);
            border: 1px solid rgba(0, 229, 160, 0.15);
            margin-top: 14px;
        }

        /* ===== FEATURED IMAGE CARD ===== */
        .feature-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            margin-top: 48px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }

        .feature-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-card);
        }

        .feature-card-content {
            padding: 48px 40px;
        }

        .feature-card-content h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: #fff;
        }

        .feature-card-content p {
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .feature-card-content ul {
            list-style: none;
            padding: 0;
            display: grid;
            gap: 10px;
        }

        .feature-card-content ul li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--text-muted);
            font-size: 0.92rem;
        }

        .feature-card-content ul li i {
            color: var(--accent);
            margin-top: 4px;
            font-size: 0.85rem;
        }

        .feature-card-image {
            min-height: 320px;
            background: url('/assets/images/coverpic/cover-2.png') center center / cover no-repeat;
            position: relative;
        }

        .feature-card-image::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, var(--bg-card) 0%, transparent 50%);
        }

        /* ===== SCENARIO ===== */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
            margin-top: 48px;
        }

        .scenario-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            padding: 28px 24px;
            transition: var(--transition);
            text-align: center;
        }

        .scenario-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-glow);
            transform: translateY(-4px);
        }

        .scenario-item .emoji {
            font-size: 2.4rem;
            margin-bottom: 12px;
            display: block;
        }

        .scenario-item h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
        }

        .scenario-item p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== STEPS ===== */
        .steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 32px;
            margin-top: 48px;
            counter-reset: step;
        }

        .step-item {
            text-align: center;
            position: relative;
            padding: 32px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .step-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-glow);
            transform: translateY(-4px);
        }

        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
            color: #fff;
            margin: 0 auto 16px;
            box-shadow: 0 0 30px rgba(108, 60, 245, 0.2);
        }

        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 48px auto 0;
            display: grid;
            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(--border-glow);
        }

        .faq-question {
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 500;
            color: var(--text-main);
            font-size: 0.98rem;
            transition: var(--transition);
            user-select: none;
        }

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

        .faq-question i {
            transition: var(--transition);
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary-light);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(108, 60, 245, 0.08), rgba(255, 61, 113, 0.05));
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
            margin-top: 48px;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at 30% 50%, rgba(108, 60, 245, 0.06), transparent 60%),
                radial-gradient(circle at 70% 50%, rgba(255, 61, 113, 0.04), transparent 60%);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: clamp(1.8rem, 3vw, 2.6rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            position: relative;
        }

        .cta-section p {
            color: var(--text-muted);
            max-width: 540px;
            margin: 0 auto 28px;
            font-size: 1.05rem;
            position: relative;
        }

        .cta-section .btn {
            position: relative;
        }

        /* ===== FOOTER ===== */
        .footer {
            background: rgba(11, 8, 26, 0.95);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
            margin-bottom: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border-color);
        }

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

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.8;
            max-width: 320px;
        }

        .footer h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
        }

        .footer a {
            display: block;
            padding: 4px 0;
            font-size: 0.88rem;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .footer a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 24px;
            font-size: 0.82rem;
            color: var(--text-dim);
        }

        .footer-social {
            display: flex;
            gap: 16px;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(108, 60, 245, 0.08);
            border: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: var(--text-muted);
            transition: var(--transition);
            padding: 0;
        }

        .footer-social a:hover {
            background: rgba(108, 60, 245, 0.2);
            border-color: var(--primary);
            color: var(--primary-light);
            padding: 0;
            transform: translateY(-2px);
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .feature-card {
                grid-template-columns: 1fr;
            }
            .feature-card-image {
                min-height: 240px;
                order: -1;
            }
            .feature-card-image::before {
                background: linear-gradient(transparent 0%, var(--bg-card) 100%);
            }
            .feature-card-content {
                padding: 32px 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }

            .mobile-tabbar {
                display: flex;
            }

            .header-inner {
                height: 60px;
                padding: 0 16px;
            }

            .logo {
                font-size: 1.1rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }

            .hero {
                min-height: 80vh;
                padding: 100px 0 60px;
            }
            .hero h1 {
                font-size: clamp(2rem, 8vw, 2.8rem);
            }
            .hero-sub {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 24px;
            }
            .hero-stat h3 {
                font-size: 1.5rem;
            }

            .section {
                padding: 64px 0;
            }
            .section-title {
                font-size: 1.7rem;
            }

            .card-grid {
                grid-template-columns: 1fr;
            }
            .scenario-grid {
                grid-template-columns: 1fr 1fr;
            }
            .steps {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

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

            .footer {
                margin-bottom: 56px;
                padding: 40px 0 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 16px;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .hero-stats {
                flex-direction: column;
                gap: 16px;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .steps {
                grid-template-columns: 1fr;
            }
            .feature-card-content {
                padding: 24px 20px;
            }
            .feature-card-content h3 {
                font-size: 1.3rem;
            }
        }