/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --neon-cyan: #00d4ff;
            --neon-purple: #7c3aed;
            --neon-blue: #06b6d4;
            --bg-dark: #0a0a12;
            --bg-card: #15152a;
            --bg-section: #0f0f1e;
            --bg-elevated: #1c1c38;
            --text-primary: #f0f0f5;
            --text-secondary: #a0a0b8;
            --text-muted: #6b6b8a;
            --border-color: #2a2a4a;
            --border-glow: rgba(0, 212, 255, 0.25);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.5);
            --shadow-glow-cyan: 0 0 20px rgba(0, 212, 255, 0.15);
            --shadow-glow-purple: 0 0 20px rgba(124, 58, 237, 0.15);
            --transition-fast: 0.25s ease;
            --transition-smooth: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--neon-cyan);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover,
        a:focus-visible {
            color: #66e5ff;
            outline: none;
        }
        a:focus-visible {
            outline: 2px solid var(--neon-cyan);
            outline-offset: 4px;
            border-radius: 4px;
        }

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

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

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

        ul,
        ol {
            list-style: none;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
            margin-left: auto;
            margin-right: auto;
        }

        @media (max-width: 576px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ===== 导航 ===== */
        .navbar-custom {
            background: rgba(10, 10, 18, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 212, 255, 0.15);
            padding: 0 24px;
            min-height: 72px;
            transition: background var(--transition-fast), box-shadow var(--transition-fast);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }

        .navbar-custom .navbar-brand {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 0 30px rgba(0, 212, 255, 0.2);
            padding: 8px 0;
            transition: opacity var(--transition-fast);
        }
        .navbar-custom .navbar-brand:hover {
            opacity: 0.85;
        }

        .navbar-custom .navbar-nav {
            gap: 4px;
        }

        .navbar-custom .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 18px !important;
            border-radius: var(--radius-sm);
            position: relative;
            transition: color var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
            letter-spacing: 0.3px;
        }

        .navbar-custom .nav-link:hover {
            color: var(--text-primary);
            background: rgba(0, 212, 255, 0.06);
        }

        .navbar-custom .nav-link.active {
            color: var(--neon-cyan);
            background: rgba(0, 212, 255, 0.08);
            box-shadow: inset 0 -2px 0 var(--neon-cyan), 0 0 20px rgba(0, 212, 255, 0.08);
        }

        .navbar-custom .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 2px;
            background: var(--neon-cyan);
            border-radius: 2px;
            box-shadow: 0 0 12px rgba(0, 212, 255, 0.5);
        }

        .navbar-custom .navbar-toggler {
            border: 1px solid rgba(0, 212, 255, 0.25);
            padding: 6px 12px;
            color: var(--neon-cyan);
            background: transparent;
            border-radius: var(--radius-sm);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        .navbar-custom .navbar-toggler:hover {
            border-color: var(--neon-cyan);
            box-shadow: 0 0 16px rgba(0, 212, 255, 0.15);
        }
        .navbar-custom .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(0,212,255,0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
            width: 24px;
            height: 24px;
        }

        .navbar-custom .navbar-collapse {
            background: transparent;
        }

        @media (max-width: 991.98px) {
            .navbar-custom {
                padding: 0 16px;
                min-height: 64px;
            }
            .navbar-custom .navbar-collapse {
                background: rgba(10, 10, 18, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                padding: 12px 8px 20px;
                border-bottom: 1px solid rgba(0, 212, 255, 0.1);
            }
            .navbar-custom .navbar-nav {
                gap: 2px;
                padding-top: 8px;
            }
            .navbar-custom .nav-link {
                padding: 10px 16px !important;
                font-size: 1rem;
            }
            .navbar-custom .nav-link.active::after {
                width: 30%;
                bottom: 4px;
            }
        }

        @media (max-width: 576px) {
            .navbar-custom .navbar-brand {
                font-size: 1.1rem;
            }
        }

        /* ===== Hero 首屏 ===== */
        .hero-section {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            background-attachment: fixed;
            overflow: hidden;
            padding: 80px 0 60px;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 10, 18, 0.88) 0%, rgba(10, 10, 18, 0.70) 50%, rgba(15, 15, 30, 0.85) 100%);
            z-index: 1;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 200px;
            background: linear-gradient(to top, var(--bg-dark), transparent);
            z-index: 2;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 3;
            text-align: center;
            max-width: 900px;
            padding: 20px 24px;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 22px;
            border-radius: 50px;
            background: rgba(0, 212, 255, 0.10);
            border: 1px solid rgba(0, 212, 255, 0.25);
            color: var(--neon-cyan);
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 28px;
            backdrop-filter: blur(8px);
            box-shadow: 0 0 30px rgba(0, 212, 255, 0.05);
        }

        .hero-title {
            font-size: clamp(2.4rem, 7vw, 4.2rem);
            font-weight: 800;
            line-height: 1.15;
            margin-bottom: 24px;
            background: linear-gradient(135deg, #ffffff 20%, var(--neon-cyan) 50%, var(--neon-purple) 80%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 0 60px rgba(0, 212, 255, 0.15);
            letter-spacing: -0.5px;
        }

        .hero-subtitle {
            font-size: clamp(1.05rem, 2vw, 1.35rem);
            color: var(--text-secondary);
            max-width: 680px;
            margin: 0 auto 36px;
            line-height: 1.8;
            font-weight: 400;
        }

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

        .btn-neon {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 40px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.05rem;
            border: none;
            background: linear-gradient(135deg, var(--neon-cyan), var(--neon-blue));
            color: #0a0a12;
            box-shadow: 0 0 30px rgba(0, 212, 255, 0.25), 0 4px 16px rgba(0, 0, 0, 0.3);
            transition: transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);
            cursor: pointer;
            text-decoration: none;
            letter-spacing: 0.3px;
        }
        .btn-neon:hover {
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 0 50px rgba(0, 212, 255, 0.4), 0 8px 30px rgba(0, 0, 0, 0.4);
            color: #0a0a12;
            opacity: 0.95;
        }
        .btn-neon:active {
            transform: translateY(0) scale(0.98);
        }

        .btn-neon-outline {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 13px 38px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.05rem;
            border: 2px solid var(--neon-cyan);
            background: transparent;
            color: var(--neon-cyan);
            box-shadow: 0 0 20px rgba(0, 212, 255, 0.06);
            transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
            cursor: pointer;
            text-decoration: none;
            letter-spacing: 0.3px;
        }
        .btn-neon-outline:hover {
            transform: translateY(-3px);
            box-shadow: 0 0 40px rgba(0, 212, 255, 0.2);
            background: rgba(0, 212, 255, 0.08);
            color: #66e5ff;
            border-color: #66e5ff;
        }
        .btn-neon-outline:active {
            transform: translateY(0);
        }

        .hero-scroll {
            position: absolute;
            bottom: 40px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 4;
            color: var(--text-muted);
            font-size: 0.8rem;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            animation: bounce-down 2.4s infinite;
            letter-spacing: 2px;
        }
        .hero-scroll i {
            font-size: 1.2rem;
            color: var(--neon-cyan);
            opacity: 0.6;
        }

        @keyframes bounce-down {
            0%,
            100% {
                transform: translateX(-50%) translateY(0);
            }
            50% {
                transform: translateX(-50%) translateY(10px);
            }
        }

        @media (max-width: 768px) {
            .hero-section {
                min-height: 80vh;
                background-attachment: scroll;
                padding: 60px 0 40px;
            }
            .hero-title {
                font-size: clamp(1.8rem, 8vw, 2.8rem);
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .btn-neon,
            .btn-neon-outline {
                padding: 12px 28px;
                font-size: 0.95rem;
            }
            .hero-scroll {
                display: none;
            }
        }

        @media (max-width: 480px) {
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .hero-badge {
                font-size: 0.75rem;
                padding: 4px 16px;
            }
        }

        /* ===== 通用板块 ===== */
        .section-padding {
            padding: 90px 0;
        }

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

        .section-darker {
            background: var(--bg-dark);
        }

        .section-card-bg {
            background: var(--bg-card);
        }

        .section-title {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 16px;
            color: var(--text-primary);
            letter-spacing: -0.3px;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 620px;
            margin: 0 auto 48px;
            font-weight: 400;
        }

        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }

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

        .section-header .section-subtitle {
            margin-bottom: 0;
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 56px 0;
            }
            .section-header {
                margin-bottom: 36px;
            }
            .section-header .section-subtitle {
                font-size: 1rem;
            }
        }

        /* ===== 核心优势卡片 ===== */
        .advantage-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 36px 28px 32px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-fast);
            text-align: center;
            height: 100%;
            position: relative;
            overflow: hidden;
        }

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

        .advantage-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.6), var(--shadow-glow-cyan);
            border-color: rgba(0, 212, 255, 0.2);
        }

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

        .advantage-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.6rem;
            background: rgba(0, 212, 255, 0.08);
            color: var(--neon-cyan);
            transition: background var(--transition-fast), box-shadow var(--transition-fast);
        }

        .advantage-card:hover .advantage-icon {
            background: rgba(0, 212, 255, 0.16);
            box-shadow: 0 0 30px rgba(0, 212, 255, 0.12);
        }

        .advantage-card h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

        .advantage-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 统计数据 ===== */
        .stat-item {
            text-align: center;
            padding: 20px 12px;
        }

        .stat-number {
            font-size: clamp(2.4rem, 5vw, 3.6rem);
            font-weight: 800;
            background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
            letter-spacing: -1px;
        }

        .stat-label {
            font-size: 1rem;
            color: var(--text-secondary);
            font-weight: 500;
            margin-top: 6px;
            letter-spacing: 0.5px;
        }

        .stat-divider {
            width: 40px;
            height: 3px;
            background: linear-gradient(90deg, var(--neon-cyan), var(--neon-purple));
            border-radius: 4px;
            margin: 12px auto 0;
            opacity: 0.6;
        }

        @media (max-width: 768px) {
            .stat-item {
                padding: 16px 8px;
            }
            .stat-divider {
                margin-top: 8px;
            }
        }

        /* ===== 分类卡片 ===== */
        .category-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-fast);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.6), var(--shadow-glow-purple);
            border-color: rgba(124, 58, 237, 0.2);
        }

        .category-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
            transition: transform var(--transition-smooth);
        }

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

        .category-card .card-body {
            padding: 24px 22px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .category-card .card-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.8px;
            background: rgba(0, 212, 255, 0.10);
            color: var(--neon-cyan);
            border: 1px solid rgba(0, 212, 255, 0.15);
            margin-bottom: 14px;
            align-self: flex-start;
        }

        .category-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .category-card p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }

        .category-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--neon-cyan);
            font-weight: 600;
            font-size: 0.9rem;
            transition: gap var(--transition-fast), color var(--transition-fast);
            text-decoration: none;
        }
        .category-card .card-link:hover {
            gap: 14px;
            color: #66e5ff;
        }

        /* ===== 资讯列表 ===== */
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 24px 26px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
            margin-bottom: 16px;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .news-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.5), var(--shadow-glow-cyan);
            border-color: rgba(0, 212, 255, 0.15);
        }

        .news-card .news-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px 20px;
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 4px;
        }

        .news-card .news-meta .badge-cat {
            display: inline-block;
            padding: 2px 14px;
            border-radius: 50px;
            background: rgba(124, 58, 237, 0.12);
            color: #a78bfa;
            font-size: 0.75rem;
            font-weight: 600;
            border: 1px solid rgba(124, 58, 237, 0.15);
        }

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

        .news-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            transition: color var(--transition-fast);
        }

        .news-card:hover h3 {
            color: var(--neon-cyan);
        }

        .news-card p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .news-card .news-link {
            align-self: flex-start;
            color: var(--neon-cyan);
            font-weight: 500;
            font-size: 0.88rem;
            text-decoration: none;
            transition: color var(--transition-fast);
            margin-top: 6px;
        }
        .news-card .news-link:hover {
            color: #66e5ff;
        }

        .news-empty {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-muted);
            font-size: 1.05rem;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-color);
        }

        @media (max-width: 768px) {
            .news-card {
                padding: 18px 20px;
            }
            .news-card h3 {
                font-size: 1rem;
            }
        }

        /* ===== 流程步骤 ===== */
        .step-item {
            text-align: center;
            padding: 20px 16px;
            position: relative;
        }

        .step-number {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.3rem;
            font-weight: 700;
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.12), rgba(124, 58, 237, 0.12));
            border: 2px solid rgba(0, 212, 255, 0.25);
            color: var(--neon-cyan);
            transition: box-shadow var(--transition-fast), border-color var(--transition-fast);
        }

        .step-item:hover .step-number {
            border-color: var(--neon-cyan);
            box-shadow: 0 0 30px rgba(0, 212, 255, 0.15);
        }

        .step-item h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .step-item p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
            margin-bottom: 0;
            max-width: 280px;
            margin-left: auto;
            margin-right: auto;
        }

        .step-connector {
            display: none;
        }

        @media (min-width: 768px) {
            .step-connector {
                display: flex;
                align-items: center;
                justify-content: center;
                color: rgba(0, 212, 255, 0.2);
                font-size: 1.8rem;
                font-weight: 300;
            }
        }

        @media (max-width: 767px) {
            .step-item {
                padding: 16px 8px;
            }
            .step-item::after {
                content: '↓';
                display: block;
                color: rgba(0, 212, 255, 0.2);
                font-size: 1.4rem;
                margin-top: 12px;
            }
            .step-item:last-child::after {
                display: none;
            }
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        .faq-item:hover {
            border-color: rgba(0, 212, 255, 0.15);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }

        .faq-question {
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.02rem;
            color: var(--text-primary);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: color var(--transition-fast), background var(--transition-fast);
            gap: 16px;
        }
        .faq-question:hover {
            color: var(--neon-cyan);
            background: rgba(0, 212, 255, 0.03);
        }
        .faq-question .faq-icon {
            font-size: 1.1rem;
            color: var(--neon-cyan);
            flex-shrink: 0;
            transition: transform var(--transition-fast);
        }
        .faq-question[aria-expanded="true"] .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        @media (max-width: 768px) {
            .faq-question {
                padding: 16px 18px;
                font-size: 0.95rem;
            }
            .faq-answer {
                padding: 0 18px 16px;
                font-size: 0.9rem;
            }
        }

        /* ===== CTA 区块 ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.04), rgba(124, 58, 237, 0.04));
            border-top: 1px solid rgba(0, 212, 255, 0.08);
            border-bottom: 1px solid rgba(0, 212, 255, 0.08);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at 30% 50%, rgba(0, 212, 255, 0.03) 0%, transparent 50%),
                radial-gradient(circle at 70% 50%, rgba(124, 58, 237, 0.03) 0%, transparent 50%);
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 20px 0;
        }

        .cta-content h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.4rem);
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .cta-content p {
            color: var(--text-secondary);
            font-size: 1.1rem;
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #07070f;
            border-top: 1px solid rgba(0, 212, 255, 0.06);
            padding: 56px 0 32px;
        }

        .footer-brand {
            font-size: 1.25rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 12px;
            display: inline-block;
        }

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

        .footer-heading {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

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

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: color var(--transition-fast), padding-left var(--transition-fast);
            text-decoration: none;
        }
        .footer-links a:hover {
            color: var(--neon-cyan);
            padding-left: 4px;
        }

        .footer-divider {
            border-color: rgba(255, 255, 255, 0.04);
            margin: 32px 0 24px;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            color: var(--text-muted);
            font-size: 0.82rem;
        }

        .footer-bottom a {
            color: var(--text-muted);
            text-decoration: none;
        }
        .footer-bottom a:hover {
            color: var(--neon-cyan);
        }

        .footer-social {
            display: flex;
            gap: 16px;
        }
        .footer-social a {
            color: var(--text-muted);
            font-size: 1.1rem;
            transition: color var(--transition-fast), transform var(--transition-fast);
        }
        .footer-social a:hover {
            color: var(--neon-cyan);
            transform: translateY(-3px);
        }

        @media (max-width: 768px) {
            .footer {
                padding: 40px 0 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-desc {
                max-width: 100%;
            }
        }

        /* ===== 滚动条美化 ===== */
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-dark);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #3a3a5a;
        }

        /* ===== 通用辅助 ===== */
        .text-gradient {
            background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .glow-cyan {
            box-shadow: 0 0 30px rgba(0, 212, 255, 0.08);
        }

        .border-glow {
            border-color: rgba(0, 212, 255, 0.15);
        }

        .ratio-icon {
            width: 48px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: rgba(0, 212, 255, 0.06);
            color: var(--neon-cyan);
            font-size: 1.2rem;
        }

        @media (max-width: 576px) {
            .container {
                padding-left: 12px;
                padding-right: 12px;
            }
            .section-padding {
                padding: 40px 0;
            }
        }

        /* ===== Bootstrap 覆写 ===== */
        .accordion-button:not(.collapsed) {
            background: rgba(0, 212, 255, 0.04);
            color: var(--neon-cyan);
            box-shadow: none;
        }
        .accordion-button:focus {
            box-shadow: 0 0 0 2px rgba(0, 212, 255, 0.2);
        }
        .accordion-item {
            background: var(--bg-card);
            border-color: var(--border-color);
        }
        .accordion-button {
            background: var(--bg-card);
            color: var(--text-primary);
        }
        .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='rgba(0,212,255,0.7)'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
        }
        .accordion-button:not(.collapsed)::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='rgba(0,212,255,0.9)'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
        }
        .accordion-body {
            color: var(--text-secondary);
        }

/* roulang page: article */
:root {
            --neon-cyan: #00f0ff;
            --neon-blue: #0066ff;
            --neon-purple: #7b2ff7;
            --dark-bg: #0a0e1a;
            --dark-card: #111827;
            --dark-surface: #1a2332;
            --dark-border: #2a3a52;
            --text-primary: #e8edf5;
            --text-secondary: #9aaec9;
            --text-muted: #6b7f99;
            --glow-cyan: 0 0 20px rgba(0,240,255,0.15);
            --glow-blue: 0 0 20px rgba(0,102,255,0.12);
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
            --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background: var(--dark-bg);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--neon-cyan);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: #fff;
            text-shadow: 0 0 8px rgba(0,240,255,0.3);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        .container {
            max-width: 1240px;
            padding: 0 20px;
        }

        /* Navbar */
        .navbar-custom {
            background: linear-gradient(135deg, #0a0e1a 0%, #111827 100%);
            border-bottom: 1px solid rgba(0,240,255,0.08);
            padding: 12px 0;
            box-shadow: 0 4px 30px rgba(0,0,0,0.5);
            position: sticky;
            top: 0;
            z-index: 1050;
            backdrop-filter: blur(12px);
        }
        .navbar-custom .navbar-brand {
            font-weight: 700;
            font-size: 1.35rem;
            color: #fff;
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
        }
        .navbar-custom .navbar-brand:hover {
            color: var(--neon-cyan);
            text-shadow: 0 0 20px rgba(0,240,255,0.2);
        }
        .navbar-custom .navbar-brand i {
            color: var(--neon-cyan);
            font-size: 1.2em;
        }
        .navbar-custom .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 18px !important;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }
        .navbar-custom .nav-link:hover {
            color: #fff;
            background: rgba(0,240,255,0.06);
        }
        .navbar-custom .nav-link.active {
            color: var(--neon-cyan);
            background: rgba(0,240,255,0.08);
            box-shadow: inset 0 -2px 0 var(--neon-cyan);
        }
        .navbar-custom .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 18px;
            right: 18px;
            height: 2px;
            background: var(--neon-cyan);
            box-shadow: 0 0 12px var(--neon-cyan);
            border-radius: 2px;
        }
        .navbar-toggler {
            border: 1px solid rgba(0,240,255,0.2);
            padding: 6px 10px;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(0,240,255,0.15);
        }
        .navbar-toggler-icon {
            filter: brightness(0) invert(1);
        }

        /* Banner */
        .article-banner {
            position: relative;
            padding: 80px 0 60px;
            background: linear-gradient(135deg, #0a0e1a 0%, #111827 100%);
            overflow: hidden;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.15;
            filter: blur(2px);
        }
        .article-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(0,240,255,0.03) 0%, transparent 50%, rgba(123,47,247,0.03) 100%);
        }
        .article-banner .container {
            position: relative;
            z-index: 2;
        }
        .article-breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .article-breadcrumb a {
            color: var(--text-secondary);
        }
        .article-breadcrumb a:hover {
            color: var(--neon-cyan);
        }
        .article-breadcrumb .sep {
            color: var(--dark-border);
        }
        .article-breadcrumb .current {
            color: var(--neon-cyan);
        }
        .article-banner h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.3;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.3);
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            color: var(--text-secondary);
            font-size: 0.95rem;
        }
        .article-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta i {
            color: var(--neon-cyan);
            font-size: 0.85em;
        }
        .article-meta .category-badge {
            display: inline-block;
            padding: 4px 16px;
            background: rgba(0,240,255,0.1);
            border: 1px solid rgba(0,240,255,0.2);
            border-radius: 20px;
            color: var(--neon-cyan);
            font-size: 0.85rem;
            font-weight: 500;
        }

        /* Main Content */
        .article-main {
            padding: 60px 0 80px;
        }
        .article-content {
            background: var(--dark-card);
            border: 1px solid var(--dark-border);
            border-radius: var(--radius);
            padding: 48px 52px;
            box-shadow: var(--shadow-card);
        }
        .article-content p {
            margin-bottom: 1.5rem;
            color: var(--text-primary);
            font-size: 1.05rem;
            line-height: 1.9;
        }
        .article-content h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #fff;
            margin: 2rem 0 1rem;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--dark-border);
        }
        .article-content h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--neon-cyan);
            margin: 1.6rem 0 0.8rem;
        }
        .article-content ul, .article-content ol {
            margin-bottom: 1.5rem;
            padding-left: 1.8rem;
            color: var(--text-secondary);
        }
        .article-content li {
            margin-bottom: 0.5rem;
        }
        .article-content a {
            color: var(--neon-cyan);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-content a:hover {
            color: #fff;
        }
        .article-content img {
            border-radius: var(--radius-sm);
            margin: 1.5rem 0;
            border: 1px solid var(--dark-border);
            box-shadow: 0 4px 20px rgba(0,0,0,0.3);
        }
        .article-content blockquote {
            border-left: 4px solid var(--neon-cyan);
            padding: 16px 24px;
            margin: 1.5rem 0;
            background: rgba(0,240,255,0.03);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-content code {
            background: var(--dark-surface);
            padding: 2px 10px;
            border-radius: 4px;
            font-size: 0.9em;
            color: var(--neon-cyan);
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
        }
        .article-content th {
            background: var(--dark-surface);
            color: #fff;
            font-weight: 600;
            padding: 12px 16px;
            border: 1px solid var(--dark-border);
        }
        .article-content td {
            padding: 10px 16px;
            border: 1px solid var(--dark-border);
            color: var(--text-secondary);
        }

        /* Not found */
        .not-found-box {
            text-align: center;
            padding: 80px 20px;
        }
        .not-found-box i {
            font-size: 4rem;
            color: var(--dark-border);
            margin-bottom: 24px;
        }
        .not-found-box h2 {
            font-size: 1.6rem;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .not-found-box .btn-back {
            display: inline-block;
            padding: 12px 36px;
            background: var(--neon-cyan);
            color: #0a0e1a;
            font-weight: 600;
            border-radius: 50px;
            transition: var(--transition);
        }
        .not-found-box .btn-back:hover {
            background: #fff;
            box-shadow: 0 0 30px rgba(0,240,255,0.3);
            transform: translateY(-2px);
        }

        /* Sidebar / Related */
        .sidebar-section {
            margin-top: 48px;
        }
        .sidebar-section h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-section h3 i {
            color: var(--neon-cyan);
        }
        .related-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .related-list li {
            padding: 14px 0;
            border-bottom: 1px solid rgba(42,58,82,0.4);
        }
        .related-list li:last-child {
            border-bottom: none;
        }
        .related-list a {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--text-secondary);
            font-weight: 500;
            transition: var(--transition);
        }
        .related-list a:hover {
            color: var(--neon-cyan);
            padding-left: 6px;
        }
        .related-list a i {
            font-size: 0.75rem;
            color: var(--dark-border);
        }

        /* Tags */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--dark-border);
        }
        .article-tags .tag {
            display: inline-block;
            padding: 6px 18px;
            background: var(--dark-surface);
            border: 1px solid var(--dark-border);
            border-radius: 50px;
            color: var(--text-secondary);
            font-size: 0.85rem;
            transition: var(--transition);
        }
        .article-tags .tag:hover {
            background: rgba(0,240,255,0.08);
            border-color: var(--neon-cyan);
            color: var(--neon-cyan);
        }

        /* Footer */
        .footer {
            background: linear-gradient(135deg, #0a0e1a 0%, #111827 100%);
            border-top: 1px solid rgba(0,240,255,0.06);
            padding: 56px 0 32px;
            color: var(--text-secondary);
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }
        .footer-brand i {
            color: var(--neon-cyan);
        }
        .footer-brand:hover {
            color: var(--neon-cyan);
        }
        .footer-desc {
            font-size: 0.95rem;
            line-height: 1.7;
            color: var(--text-muted);
            max-width: 400px;
            margin-top: 8px;
        }
        .footer-heading {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: var(--text-muted);
            font-size: 0.92rem;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--neon-cyan);
            padding-left: 4px;
        }
        .footer-divider {
            border-color: rgba(42,58,82,0.3);
            margin: 32px 0 20px;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-size: 0.88rem;
            color: var(--text-muted);
        }
        .footer-social {
            display: flex;
            gap: 14px;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--dark-surface);
            border: 1px solid var(--dark-border);
            border-radius: 50%;
            color: var(--text-muted);
            font-size: 1rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: rgba(0,240,255,0.1);
            border-color: var(--neon-cyan);
            color: var(--neon-cyan);
            transform: translateY(-2px);
            box-shadow: 0 0 20px rgba(0,240,255,0.1);
        }

        /* Responsive */
        @media (max-width: 992px) {
            .navbar-custom .nav-link.active::after {
                display: none;
            }
            .navbar-custom .nav-link {
                padding: 10px 16px !important;
            }
            .article-banner h1 {
                font-size: 1.8rem;
            }
            .article-content {
                padding: 32px 28px;
            }
        }
        @media (max-width: 768px) {
            .article-banner {
                padding: 48px 0 40px;
            }
            .article-banner h1 {
                font-size: 1.5rem;
            }
            .article-meta {
                gap: 12px;
                font-size: 0.85rem;
            }
            .article-content {
                padding: 24px 18px;
            }
            .article-content p {
                font-size: 0.98rem;
            }
            .article-content h2 {
                font-size: 1.3rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .article-banner h1 {
                font-size: 1.25rem;
            }
            .article-content {
                padding: 18px 14px;
                border-radius: var(--radius-sm);
            }
            .article-content p {
                font-size: 0.92rem;
            }
            .related-list a {
                font-size: 0.9rem;
            }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --neon-cyan: #00f0ff;
            --neon-blue: #0066ff;
            --neon-purple: #7b2ff7;
            --dark-bg: #0b0e1a;
            --dark-card: #13182b;
            --dark-card-hover: #1a2140;
            --dark-surface: #1a1f35;
            --text-white: #f0f4ff;
            --text-light: #b0bcdd;
            --text-muted: #7a86a8;
            --border-glow: rgba(0, 240, 255, 0.15);
            --border-subtle: rgba(255, 255, 255, 0.06);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 30px rgba(0, 240, 255, 0.08);
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-base: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-base);
            background: var(--dark-bg);
            color: var(--text-light);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--neon-cyan);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: #6cf5ff;
            text-decoration: none;
        }

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

        /* ===== 容器 ===== */
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== 导航 ===== */
        .navbar-custom {
            background: rgba(11, 14, 26, 0.92) !important;
            backdrop-filter: blur(16px) saturate(1.4);
            border-bottom: 1px solid var(--border-subtle);
            padding: 0.6rem 0;
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
            transition: var(--transition);
        }

        .navbar-custom .navbar-brand {
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text-white) !important;
            letter-spacing: 0.3px;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .navbar-custom .navbar-brand i {
            color: var(--neon-cyan);
            font-size: 1.1em;
            filter: drop-shadow(0 0 8px rgba(0, 240, 255, 0.4));
        }

        .navbar-custom .nav-link {
            color: var(--text-light) !important;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.5rem 1rem !important;
            border-radius: 8px;
            transition: var(--transition);
            position: relative;
        }

        .navbar-custom .nav-link:hover {
            color: var(--text-white) !important;
            background: rgba(0, 240, 255, 0.06);
        }

        .navbar-custom .nav-link.active {
            color: var(--neon-cyan) !important;
            background: rgba(0, 240, 255, 0.1);
            box-shadow: inset 0 -2px 0 var(--neon-cyan), 0 0 20px rgba(0, 240, 255, 0.06);
        }

        .navbar-custom .navbar-toggler {
            border-color: rgba(0, 240, 255, 0.25);
            padding: 0.4rem 0.6rem;
        }
        .navbar-custom .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.2);
        }
        .navbar-custom .navbar-toggler-icon {
            filter: brightness(1.5);
        }

        /* ===== Hero / 横幅 ===== */
        .category-hero {
            position: relative;
            padding: 100px 0 90px;
            background: linear-gradient(135deg, #0b0e1a 0%, #0f1a30 50%, #0b0e1a 100%);
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.15;
            z-index: 0;
            animation: heroZoom 20s ease-in-out infinite alternate;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(0, 240, 255, 0.06) 0%, transparent 70%);
            z-index: 1;
        }

        @keyframes heroZoom {
            0% {
                transform: scale(1);
            }
            100% {
                transform: scale(1.08);
            }
        }

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

        .category-hero .hero-badge {
            display: inline-block;
            background: rgba(0, 240, 255, 0.12);
            border: 1px solid rgba(0, 240, 255, 0.2);
            color: var(--neon-cyan);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.3rem 1.2rem;
            border-radius: 50px;
            letter-spacing: 0.5px;
            margin-bottom: 1rem;
            backdrop-filter: blur(4px);
            text-transform: uppercase;
        }

        .category-hero h1 {
            font-size: 3rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
            margin-bottom: 1.2rem;
            text-shadow: 0 2px 30px rgba(0, 0, 0, 0.5);
        }

        .category-hero h1 .highlight {
            color: var(--neon-cyan);
            text-shadow: 0 0 30px rgba(0, 240, 255, 0.15);
        }

        .category-hero p {
            font-size: 1.12rem;
            max-width: 680px;
            color: var(--text-light);
            margin-bottom: 1.8rem;
            line-height: 1.8;
        }

        .category-hero .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 2.5rem;
            margin-top: 1.5rem;
        }

        .category-hero .hero-stat-item {
            text-align: center;
        }

        .category-hero .hero-stat-item .num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--neon-cyan);
            display: block;
            line-height: 1.2;
            text-shadow: 0 0 20px rgba(0, 240, 255, 0.1);
        }

        .category-hero .hero-stat-item .label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 400;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 80px 0;
        }

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

        .section-heading {
            text-align: center;
            margin-bottom: 3rem;
        }

        .section-heading h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.75rem;
        }

        .section-heading h2 i {
            color: var(--neon-cyan);
            margin-right: 0.5rem;
            opacity: 0.9;
        }

        .section-heading p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 620px;
            margin: 0 auto;
        }

        .section-heading .heading-line {
            display: inline-block;
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--neon-cyan), var(--neon-purple));
            border-radius: 4px;
            margin-top: 0.8rem;
        }

        /* ===== 卡片 ===== */
        .card-custom {
            background: var(--dark-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 1.8rem 1.5rem;
            transition: var(--transition);
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .card-custom::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--neon-cyan), var(--neon-purple));
            opacity: 0;
            transition: var(--transition);
        }

        .card-custom:hover {
            background: var(--dark-card-hover);
            border-color: rgba(0, 240, 255, 0.15);
            transform: translateY(-6px);
            box-shadow: var(--shadow-card), var(--shadow-glow);
        }

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

        .card-custom .card-icon {
            font-size: 2.2rem;
            color: var(--neon-cyan);
            margin-bottom: 1rem;
            display: inline-block;
            filter: drop-shadow(0 0 12px rgba(0, 240, 255, 0.15));
        }

        .card-custom h5 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.6rem;
        }

        .card-custom p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .card-custom .card-tag {
            display: inline-block;
            background: rgba(0, 240, 255, 0.08);
            color: var(--neon-cyan);
            font-size: 0.7rem;
            font-weight: 600;
            padding: 0.15rem 0.8rem;
            border-radius: 50px;
            margin-top: 0.8rem;
            letter-spacing: 0.3px;
            border: 1px solid rgba(0, 240, 255, 0.1);
        }

        /* ===== 赛事卡片（带图） ===== */
        .event-card {
            background: var(--dark-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .event-card:hover {
            transform: translateY(-6px);
            border-color: rgba(0, 240, 255, 0.2);
            box-shadow: var(--shadow-card), var(--shadow-glow);
        }

        .event-card .event-img {
            height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .event-card .event-img .event-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(0, 240, 255, 0.85);
            color: #0b0e1a;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 0.2rem 1rem;
            border-radius: 50px;
            backdrop-filter: blur(4px);
            letter-spacing: 0.3px;
        }

        .event-card .event-img .event-live {
            position: absolute;
            top: 12px;
            right: 12px;
            background: rgba(255, 50, 50, 0.9);
            color: #fff;
            font-size: 0.65rem;
            font-weight: 700;
            padding: 0.2rem 0.8rem;
            border-radius: 50px;
            animation: pulse 2s infinite;
            letter-spacing: 0.5px;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.5;
            }
        }

        .event-card .event-body {
            padding: 1.2rem 1.3rem 1.4rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .event-card .event-body .event-cat {
            font-size: 0.75rem;
            color: var(--neon-cyan);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 0.3rem;
        }

        .event-card .event-body h5 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.4rem;
            line-height: 1.4;
        }

        .event-card .event-body p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 0.8rem;
            flex: 1;
        }

        .event-card .event-body .event-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-subtle);
            padding-top: 0.8rem;
        }

        .event-card .event-body .event-meta i {
            color: var(--neon-cyan);
            opacity: 0.7;
        }

        /* ===== 特色列表 ===== */
        .feature-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .feature-list li {
            display: flex;
            gap: 1rem;
            padding: 0.8rem 0;
            border-bottom: 1px solid var(--border-subtle);
            align-items: flex-start;
        }

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

        .feature-list li i {
            color: var(--neon-cyan);
            font-size: 1.2rem;
            margin-top: 0.2rem;
            flex-shrink: 0;
            filter: drop-shadow(0 0 8px rgba(0, 240, 255, 0.1));
        }

        .feature-list li .content strong {
            color: var(--text-white);
            display: block;
            font-weight: 600;
            margin-bottom: 0.15rem;
        }

        .feature-list li .content span {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* ===== 数据统计块 ===== */
        .stat-block {
            text-align: center;
            padding: 2rem 1.5rem;
            background: var(--dark-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            transition: var(--transition);
        }

        .stat-block:hover {
            border-color: rgba(0, 240, 255, 0.15);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }

        .stat-block .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--neon-cyan);
            line-height: 1.2;
            text-shadow: 0 0 30px rgba(0, 240, 255, 0.08);
        }

        .stat-block .stat-number .suffix {
            font-size: 1.6rem;
            font-weight: 600;
            opacity: 0.7;
        }

        .stat-block .stat-label {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-top: 0.3rem;
            font-weight: 400;
        }

        .stat-block .stat-icon {
            font-size: 2rem;
            color: var(--neon-purple);
            margin-bottom: 0.6rem;
            opacity: 0.6;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--dark-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 1.2rem 1.5rem;
            margin-bottom: 0.8rem;
            transition: var(--transition);
            cursor: pointer;
        }

        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.1);
            background: var(--dark-card-hover);
        }

        .faq-item .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            color: var(--text-white);
            font-size: 1rem;
            gap: 1rem;
        }

        .faq-item .faq-question i {
            color: var(--neon-cyan);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item .faq-answer {
            color: var(--text-muted);
            font-size: 0.92rem;
            padding-top: 0.8rem;
            line-height: 1.8;
            display: none;
            border-top: 1px solid var(--border-subtle);
            margin-top: 0.8rem;
        }

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

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #0f1a30 0%, #1a1040 100%);
            border-top: 1px solid rgba(0, 240, 255, 0.06);
            border-bottom: 1px solid rgba(0, 240, 255, 0.06);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 40%, rgba(0, 240, 255, 0.04) 0%, transparent 70%);
            pointer-events: none;
        }

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

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-white);
        }

        .cta-section p {
            color: var(--text-light);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto 1.5rem;
        }

        .btn-neon {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, var(--neon-cyan), #0099cc);
            color: #0b0e1a !important;
            font-weight: 700;
            font-size: 1rem;
            padding: 0.75rem 2.2rem;
            border-radius: 50px;
            border: none;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(0, 240, 255, 0.2);
            text-decoration: none !important;
        }

        .btn-neon:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 35px rgba(0, 240, 255, 0.35);
            background: linear-gradient(135deg, #1af0ff, #00aadd);
            color: #0b0e1a !important;
        }

        .btn-neon:active {
            transform: translateY(0);
            box-shadow: 0 4px 15px rgba(0, 240, 255, 0.2);
        }

        .btn-neon-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: transparent;
            color: var(--neon-cyan) !important;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.65rem 1.8rem;
            border-radius: 50px;
            border: 2px solid rgba(0, 240, 255, 0.3);
            transition: var(--transition);
            text-decoration: none !important;
        }

        .btn-neon-outline:hover {
            background: rgba(0, 240, 255, 0.08);
            border-color: var(--neon-cyan);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.06);
            color: var(--neon-cyan) !important;
            transform: translateY(-2px);
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #070a14;
            border-top: 1px solid var(--border-subtle);
            padding: 50px 0 30px;
            color: var(--text-muted);
        }

        .footer .footer-brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-white);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            margin-bottom: 0.8rem;
            text-decoration: none;
        }

        .footer .footer-brand i {
            color: var(--neon-cyan);
        }

        .footer .footer-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            max-width: 360px;
            line-height: 1.8;
        }

        .footer .footer-heading {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 1rem;
            letter-spacing: 0.3px;
        }

        .footer .footer-links {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .footer .footer-links a {
            color: var(--text-muted);
            font-size: 0.88rem;
            transition: var(--transition);
            text-decoration: none;
        }

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

        .footer .footer-divider {
            border-color: var(--border-subtle);
            margin: 2rem 0 1.5rem;
            opacity: 0.5;
        }

        .footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .footer .footer-social {
            display: flex;
            gap: 0.8rem;
        }

        .footer .footer-social a {
            color: var(--text-muted);
            font-size: 1.2rem;
            transition: var(--transition);
            text-decoration: none;
        }

        .footer .footer-social a:hover {
            color: var(--neon-cyan);
            transform: scale(1.15);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991px) {
            .category-hero {
                padding: 80px 0 70px;
                min-height: auto;
            }
            .category-hero h1 {
                font-size: 2.4rem;
            }
            .category-hero .hero-stats {
                gap: 1.8rem;
            }
            .section-heading h2 {
                font-size: 1.8rem;
            }
            .stat-block .stat-number {
                font-size: 2.2rem;
            }
            .footer .footer-desc {
                max-width: 100%;
            }
        }

        @media (max-width: 767px) {
            .navbar-custom .navbar-brand {
                font-size: 1.05rem;
            }
            .category-hero {
                padding: 60px 0 50px;
            }
            .category-hero h1 {
                font-size: 1.8rem;
            }
            .category-hero p {
                font-size: 0.98rem;
            }
            .category-hero .hero-stats {
                gap: 1.2rem;
                flex-wrap: wrap;
            }
            .category-hero .hero-stat-item .num {
                font-size: 1.5rem;
            }
            .section {
                padding: 50px 0;
            }
            .section-heading h2 {
                font-size: 1.5rem;
            }
            .section-heading p {
                font-size: 0.92rem;
            }
            .card-custom {
                padding: 1.4rem 1.2rem;
            }
            .event-card .event-img {
                height: 150px;
            }
            .stat-block {
                padding: 1.5rem 1rem;
            }
            .stat-block .stat-number {
                font-size: 1.8rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .btn-neon {
                padding: 0.6rem 1.6rem;
                font-size: 0.9rem;
            }
            .footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer .footer-social {
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 1.5rem;
            }
            .category-hero .hero-stats {
                flex-direction: column;
                gap: 0.8rem;
            }
            .category-hero .hero-stat-item {
                display: flex;
                align-items: center;
                gap: 0.6rem;
                text-align: left;
            }
            .category-hero .hero-stat-item .num {
                font-size: 1.3rem;
            }
            .section-heading h2 {
                font-size: 1.3rem;
            }
            .event-card .event-img {
                height: 130px;
            }
            .faq-item {
                padding: 1rem 1.2rem;
            }
            .faq-item .faq-question {
                font-size: 0.92rem;
            }
        }

        /* ===== 辅助 ===== */
        .text-neon {
            color: var(--neon-cyan);
        }
        .bg-dark-card {
            background: var(--dark-card);
        }
        .border-glow {
            border-color: var(--border-glow);
        }
        .gap-1 {
            gap: 0.5rem;
        }
        .gap-2 {
            gap: 1rem;
        }
        .gap-3 {
            gap: 1.5rem;
        }
        .mt-1 {
            margin-top: 0.5rem;
        }
        .mt-2 {
            margin-top: 1rem;
        }
        .mt-3 {
            margin-top: 1.5rem;
        }
        .mb-1 {
            margin-bottom: 0.5rem;
        }
        .mb-2 {
            margin-bottom: 1rem;
        }
        .mb-3 {
            margin-bottom: 1.5rem;
        }
        .fw-semibold {
            font-weight: 600;
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --bg-dark: #0b0f1a;
            --bg-card: #141a2b;
            --bg-card-hover: #1c2440;
            --neon-cyan: #00f0ff;
            --neon-purple: #a855f7;
            --neon-blue: #3b82f6;
            --neon-glow: rgba(0, 240, 255, 0.15);
            --text-primary: #f1f5f9;
            --text-secondary: #94a3b8;
            --text-weak: #64748b;
            --border-color: rgba(0, 240, 255, 0.12);
            --border-hover: rgba(0, 240, 255, 0.35);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(0, 240, 255, 0.05);
            --shadow-hover: 0 12px 48px rgba(0, 240, 255, 0.10), 0 0 0 1px rgba(0, 240, 255, 0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-dark);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--neon-cyan);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: #fff;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ::selection {
            background: var(--neon-cyan);
            color: #0b0f1a;
        }
        hr {
            border: none;
            border-top: 1px solid var(--border-color);
            margin: 2rem 0;
        }

        /* ===== Container ===== */
        .container {
            max-width: 1200px;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 导航 (暗色霓虹) ===== */
        .navbar-custom {
            background: rgba(11, 15, 26, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 2px 40px rgba(0, 0, 0, 0.7);
            padding: 0.4rem 0;
            transition: background var(--transition);
        }
        .navbar-custom .navbar-brand {
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .navbar-custom .navbar-brand:hover {
            color: var(--neon-cyan);
        }
        .navbar-custom .navbar-brand i {
            color: var(--neon-cyan);
            font-size: 1.1em;
        }
        .navbar-custom .nav-link {
            color: var(--text-secondary) !important;
            font-weight: 500;
            padding: 0.5rem 1rem !important;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            position: relative;
            letter-spacing: 0.3px;
        }
        .navbar-custom .nav-link:hover {
            color: var(--text-primary) !important;
            background: rgba(0, 240, 255, 0.06);
        }
        .navbar-custom .nav-link.active {
            color: var(--neon-cyan) !important;
            background: rgba(0, 240, 255, 0.08);
            box-shadow: inset 0 -2px 0 var(--neon-cyan);
        }
        .navbar-custom .navbar-toggler {
            border: 1px solid var(--border-color);
            padding: 0.4rem 0.6rem;
            border-radius: var(--radius-sm);
        }
        .navbar-custom .navbar-toggler:focus {
            box-shadow: 0 0 0 0.2rem rgba(0, 240, 255, 0.25);
        }
        .navbar-custom .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(0,240,255,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        @media (max-width: 991.98px) {
            .navbar-custom .navbar-collapse {
                background: rgba(11, 15, 26, 0.98);
                border-radius: var(--radius-md);
                padding: 0.75rem 0.5rem;
                margin-top: 0.5rem;
                border: 1px solid var(--border-color);
            }
            .navbar-custom .nav-link {
                padding: 0.6rem 1rem !important;
            }
        }

        /* ===== Banner / 内页首屏 ===== */
        .page-banner {
            position: relative;
            min-height: 42vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: linear-gradient(135deg, #0b0f1a 0%, #141a2b 60%, #1a1035 100%);
            overflow: hidden;
            padding: 4rem 0 3rem 0;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.25;
            mix-blend-mode: overlay;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 40%, rgba(0, 240, 255, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            padding: 0 1rem;
        }
        .page-banner h1 {
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: 1px;
            background: linear-gradient(135deg, #fff 30%, var(--neon-cyan) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .page-banner .banner-sub {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto 1.8rem auto;
            line-height: 1.7;
        }
        .page-banner .banner-badge {
            display: inline-block;
            background: rgba(0, 240, 255, 0.10);
            border: 1px solid rgba(0, 240, 255, 0.20);
            color: var(--neon-cyan);
            padding: 0.3rem 1.2rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: 1.2rem;
            backdrop-filter: blur(4px);
        }
        @media (max-width: 768px) {
            .page-banner {
                min-height: 36vh;
                padding: 3rem 0 2rem 0;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
            .page-banner .banner-sub {
                font-size: 1rem;
            }
        }
        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .page-banner .banner-sub {
                font-size: 0.92rem;
            }
        }

        /* ===== 通用板块标题 ===== */
        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.6rem;
            letter-spacing: 0.5px;
        }
        .section-header h2 i {
            color: var(--neon-cyan);
            margin-right: 0.4rem;
        }
        .section-header .section-desc {
            color: var(--text-secondary);
            font-size: 1.05rem;
            max-width: 640px;
            margin: 0 auto;
        }
        .section-header .section-line {
            width: 60px;
            height: 3px;
            background: var(--neon-cyan);
            border-radius: 4px;
            margin: 0.8rem auto 0 auto;
            box-shadow: 0 0 12px var(--neon-glow);
        }
        @media (max-width: 768px) {
            .section-header h2 {
                font-size: 1.6rem;
            }
        }

        /* ===== 板块间距 ===== */
        .section-padding {
            padding: 4.5rem 0;
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 3rem 0;
            }
        }

        /* ===== 卡片通用 ===== */
        .card-custom {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.8rem 1.5rem;
            transition: all var(--transition);
            box-shadow: var(--shadow-card);
            height: 100%;
        }
        .card-custom:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            background: var(--bg-card-hover);
        }
        .card-custom .card-icon {
            font-size: 2.2rem;
            color: var(--neon-cyan);
            margin-bottom: 1rem;
            display: inline-block;
            background: rgba(0, 240, 255, 0.06);
            width: 56px;
            height: 56px;
            line-height: 56px;
            text-align: center;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(0, 240, 255, 0.08);
        }
        .card-custom h5 {
            font-weight: 600;
            font-size: 1.15rem;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }
        .card-custom p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 0;
            line-height: 1.6;
        }
        .card-custom .card-tag {
            display: inline-block;
            background: rgba(0, 240, 255, 0.08);
            color: var(--neon-cyan);
            padding: 0.15rem 0.7rem;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 500;
            margin-top: 0.6rem;
            border: 1px solid rgba(0, 240, 255, 0.06);
        }

        /* ===== 按钮 ===== */
        .btn-neon {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, var(--neon-cyan), #0bc5ea);
            color: #0b0f1a;
            font-weight: 600;
            padding: 0.65rem 1.8rem;
            border-radius: 50px;
            border: none;
            transition: all var(--transition);
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.15);
            font-size: 0.95rem;
            text-decoration: none;
        }
        .btn-neon:hover {
            background: linear-gradient(135deg, #3af0ff, var(--neon-cyan));
            box-shadow: 0 0 40px rgba(0, 240, 255, 0.30);
            color: #0b0f1a;
            transform: translateY(-2px);
        }
        .btn-neon:active {
            transform: scale(0.96);
        }
        .btn-outline-neon {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: transparent;
            color: var(--neon-cyan);
            border: 1px solid var(--neon-cyan);
            font-weight: 600;
            padding: 0.6rem 1.8rem;
            border-radius: 50px;
            transition: all var(--transition);
            font-size: 0.95rem;
            text-decoration: none;
        }
        .btn-outline-neon:hover {
            background: rgba(0, 240, 255, 0.08);
            color: #fff;
            border-color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 0 24px var(--neon-glow);
        }

        /* ===== 步骤 / 流程 ===== */
        .step-card {
            text-align: center;
            padding: 2rem 1.2rem;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            transition: all var(--transition);
            position: relative;
            height: 100%;
        }
        .step-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .step-num {
            width: 48px;
            height: 48px;
            line-height: 48px;
            text-align: center;
            border-radius: 50%;
            background: rgba(0, 240, 255, 0.08);
            color: var(--neon-cyan);
            font-weight: 700;
            font-size: 1.2rem;
            margin: 0 auto 1rem auto;
            border: 1px solid rgba(0, 240, 255, 0.15);
        }
        .step-card h5 {
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.4rem;
        }
        .step-card p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            margin-bottom: 0;
        }

        /* ===== 内容列表 ===== */
        .content-list-item {
            display: flex;
            align-items: flex-start;
            gap: 1.2rem;
            padding: 1.2rem 0;
            border-bottom: 1px solid var(--border-color);
            transition: background var(--transition);
        }
        .content-list-item:last-child {
            border-bottom: none;
        }
        .content-list-item:hover {
            background: rgba(0, 240, 255, 0.02);
            border-radius: var(--radius-sm);
            padding-left: 0.6rem;
            padding-right: 0.6rem;
        }
        .content-list-item .cli-img {
            flex-shrink: 0;
            width: 100px;
            height: 70px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
        }
        .content-list-item .cli-body h6 {
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.2rem;
            font-size: 1rem;
        }
        .content-list-item .cli-body p {
            color: var(--text-secondary);
            font-size: 0.88rem;
            margin-bottom: 0.2rem;
        }
        .content-list-item .cli-body .cli-meta {
            font-size: 0.78rem;
            color: var(--text-weak);
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .content-list-item .cli-body .cli-meta i {
            margin-right: 0.3rem;
        }
        @media (max-width: 576px) {
            .content-list-item {
                flex-direction: column;
                gap: 0.6rem;
            }
            .content-list-item .cli-img {
                width: 100%;
                height: 140px;
            }
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.2rem 1.5rem;
            margin-bottom: 0.8rem;
            transition: all var(--transition);
            cursor: pointer;
        }
        .faq-item:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-hover);
        }
        .faq-question {
            font-weight: 600;
            color: var(--text-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 1.05rem;
            gap: 1rem;
        }
        .faq-question i {
            color: var(--neon-cyan);
            transition: transform var(--transition);
            font-size: 1.1rem;
        }
        .faq-item.active .faq-question i {
            transform: rotate(45deg);
        }
        .faq-answer {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            padding-top: 0.8rem;
            border-top: 1px solid var(--border-color);
            margin-top: 0.8rem;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #0f172a 0%, #1a1035 100%);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 50%, rgba(0, 240, 255, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section .cta-content {
            position: relative;
            z-index: 1;
        }
        .cta-section h3 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-primary);
        }
        .cta-section p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0.6rem auto 1.8rem auto;
        }
        @media (max-width: 768px) {
            .cta-section h3 {
                font-size: 1.4rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
        }

        /* ===== 标签 / 徽章 ===== */
        .badge-tag {
            display: inline-block;
            background: rgba(0, 240, 255, 0.06);
            border: 1px solid rgba(0, 240, 255, 0.10);
            color: var(--text-secondary);
            padding: 0.2rem 1rem;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 500;
            transition: all var(--transition);
            margin: 0.2rem;
        }
        .badge-tag:hover {
            background: rgba(0, 240, 255, 0.12);
            color: var(--neon-cyan);
            border-color: var(--neon-cyan);
        }

        /* ===== 统计数字块 ===== */
        .stat-block {
            text-align: center;
            padding: 1.5rem 0.8rem;
        }
        .stat-block .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--neon-cyan);
            line-height: 1.2;
            letter-spacing: 1px;
        }
        .stat-block .stat-label {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-top: 0.2rem;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #080c16;
            border-top: 1px solid var(--border-color);
            padding: 3rem 0 1.5rem 0;
            color: var(--text-secondary);
        }
        .footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            margin-bottom: 0.8rem;
        }
        .footer .footer-brand i {
            color: var(--neon-cyan);
        }
        .footer .footer-brand:hover {
            color: var(--neon-cyan);
        }
        .footer .footer-desc {
            font-size: 0.92rem;
            line-height: 1.7;
            color: var(--text-weak);
            max-width: 400px;
        }
        .footer .footer-heading {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 1rem;
            letter-spacing: 0.5px;
        }
        .footer .footer-links {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .footer .footer-links a {
            color: var(--text-weak);
            font-size: 0.92rem;
            transition: color var(--transition);
        }
        .footer .footer-links a:hover {
            color: var(--neon-cyan);
        }
        .footer .footer-divider {
            border-color: var(--border-color);
            margin: 2rem 0 1.2rem 0;
        }
        .footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.8rem;
            font-size: 0.85rem;
            color: var(--text-weak);
        }
        .footer .footer-social {
            display: flex;
            gap: 1rem;
        }
        .footer .footer-social a {
            color: var(--text-weak);
            font-size: 1.2rem;
            transition: color var(--transition);
        }
        .footer .footer-social a:hover {
            color: var(--neon-cyan);
        }
        @media (max-width: 768px) {
            .footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer .footer-desc {
                max-width: 100%;
            }
        }

        /* ===== 辅助 ===== */
        .text-neon {
            color: var(--neon-cyan);
        }
        .bg-card-custom {
            background: var(--bg-card);
        }
        .border-neon {
            border-color: var(--border-color);
        }
        .gap-3 {
            gap: 1rem;
        }
        .gap-4 {
            gap: 1.5rem;
        }
        .mt-2 {
            margin-top: 0.5rem;
        }
        .mt-3 {
            margin-top: 1rem;
        }
        .mt-4 {
            margin-top: 1.5rem;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mb-2 {
            margin-bottom: 0.5rem;
        }
        .mb-3 {
            margin-bottom: 1rem;
        }
        .mb-4 {
            margin-bottom: 1.5rem;
        }
        .text-center {
            text-align: center;
        }
        .text-secondary {
            color: var(--text-secondary) !important;
        }
        .fw-600 {
            font-weight: 600;
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 576px) {
            .stat-block .stat-number {
                font-size: 2rem;
            }
            .card-custom {
                padding: 1.2rem 1rem;
            }
            .step-card {
                padding: 1.2rem 0.8rem;
            }
        }

/* roulang page: category3 */
/* ===== 设计变量 ===== */
        :root {
            --bg-dark: #0b0e17;
            --bg-card: #111827;
            --bg-card-hover: #1a2235;
            --bg-section-alt: #0f1420;
            --neon-cyan: #00f0ff;
            --neon-cyan-dim: rgba(0, 240, 255, 0.15);
            --neon-purple: #a855f7;
            --neon-purple-dim: rgba(168, 85, 247, 0.12);
            --neon-pink: #f43f5e;
            --text-primary: #f1f5f9;
            --text-secondary: #94a3b8;
            --text-muted: #64748b;
            --border-glow: rgba(0, 240, 255, 0.2);
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.60);
            --shadow-glow: 0 0 30px rgba(0, 240, 255, 0.08);
            --transition: all 0.30s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

        a {
            color: var(--neon-cyan);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: #fff;
            text-shadow: 0 0 12px var(--neon-cyan);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

        ::selection {
            background: var(--neon-cyan);
            color: #000;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== 导航 ===== */
        .navbar-custom {
            background: rgba(11, 14, 23, 0.95);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-glow);
            box-shadow: 0 2px 40px rgba(0, 0, 0, 0.7);
            padding: 0.5rem 0;
            transition: var(--transition);
        }

        .navbar-custom .navbar-brand {
            color: #fff;
            font-weight: 700;
            font-size: 1.35rem;
            letter-spacing: 0.03em;
            display: flex;
            align-items: center;
            transition: var(--transition);
        }
        .navbar-custom .navbar-brand:hover {
            color: var(--neon-cyan);
            text-shadow: 0 0 20px var(--neon-cyan);
        }

        .navbar-custom .navbar-nav .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            padding: 0.6rem 1.1rem;
            border-radius: 8px;
            transition: var(--transition);
            position: relative;
            font-size: 0.95rem;
        }
        .navbar-custom .navbar-nav .nav-link:hover {
            color: #fff;
            background: var(--neon-cyan-dim);
        }
        .navbar-custom .navbar-nav .nav-link.active {
            color: #fff;
            background: var(--neon-cyan-dim);
            box-shadow: inset 0 -2px 0 var(--neon-cyan), 0 0 24px var(--neon-cyan-dim);
        }
        .navbar-custom .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 40%;
            height: 2px;
            background: var(--neon-cyan);
            border-radius: 4px;
            box-shadow: 0 0 16px var(--neon-cyan);
        }

        .navbar-toggler {
            border: 1px solid var(--border-glow);
            padding: 0.4rem 0.6rem;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 0.2rem var(--neon-cyan-dim);
        }
        .navbar-toggler-icon {
            filter: brightness(0) invert(1);
        }

        /* ===== 通用板块 ===== */
        .section-padding {
            padding: 5rem 0;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.75rem;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            color: var(--text-secondary);
            font-size: 1.1rem;
            max-width: 640px;
            margin: 0 auto 2.8rem auto;
        }
        .section-divider {
            width: 60px;
            height: 3px;
            background: var(--neon-cyan);
            border-radius: 6px;
            margin: 0.6rem auto 1.8rem auto;
            box-shadow: 0 0 24px var(--neon-cyan);
        }

        /* ===== 页面 Banner ===== */
        .page-banner {
            position: relative;
            padding: 6rem 0 4rem 0;
            background: linear-gradient(145deg, #0b0e17 0%, #111827 100%);
            border-bottom: 1px solid var(--border-glow);
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.12;
            pointer-events: none;
        }
        .page-banner .banner-glow {
            position: absolute;
            top: -100px;
            right: -80px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, var(--neon-cyan-dim) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .page-banner h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            position: relative;
            z-index: 2;
            letter-spacing: -0.02em;
        }
        .page-banner p {
            color: var(--text-secondary);
            font-size: 1.15rem;
            max-width: 640px;
            position: relative;
            z-index: 2;
            margin-top: 0.6rem;
        }
        .page-banner .breadcrumb-custom {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0.8rem;
            position: relative;
            z-index: 2;
        }
        .page-banner .breadcrumb-custom a {
            color: var(--neon-cyan);
        }
        .page-banner .breadcrumb-custom a:hover {
            color: #fff;
        }

        /* ===== 卡片 ===== */
        .card-services {
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
            height: 100%;
        }
        .card-services:hover {
            transform: translateY(-6px);
            border-color: var(--neon-cyan-dim);
            box-shadow: var(--shadow-glow), var(--shadow-card);
            background: var(--bg-card-hover);
        }
        .card-services .icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: var(--neon-cyan-dim);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--neon-cyan);
            margin-bottom: 1.2rem;
            transition: var(--transition);
        }
        .card-services:hover .icon-wrap {
            background: var(--neon-cyan);
            color: #000;
            box-shadow: 0 0 30px var(--neon-cyan);
        }
        .card-services h5 {
            color: #fff;
            font-weight: 600;
            font-size: 1.15rem;
            margin-bottom: 0.6rem;
        }
        .card-services p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            margin-bottom: 0;
        }
        .card-services .badge-neon {
            display: inline-block;
            background: var(--neon-purple-dim);
            color: var(--neon-purple);
            font-size: 0.75rem;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            margin-top: 0.8rem;
            border: 1px solid rgba(168, 85, 247, 0.2);
        }

        /* ===== 步骤 / 流程 ===== */
        .step-card {
            text-align: center;
            padding: 2rem 1rem;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.03);
            transition: var(--transition);
            height: 100%;
        }
        .step-card:hover {
            border-color: var(--neon-cyan-dim);
            box-shadow: var(--shadow-glow);
            transform: translateY(-4px);
        }
        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--neon-cyan-dim);
            color: var(--neon-cyan);
            font-weight: 700;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem auto;
            border: 1px solid var(--border-glow);
            transition: var(--transition);
        }
        .step-card:hover .step-number {
            background: var(--neon-cyan);
            color: #000;
            box-shadow: 0 0 30px var(--neon-cyan);
        }
        .step-card h6 {
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            margin-bottom: 0.4rem;
        }
        .step-card p {
            color: var(--text-secondary);
            font-size: 0.88rem;
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-md);
            padding: 1.2rem 1.5rem;
            margin-bottom: 0.8rem;
            transition: var(--transition);
            cursor: pointer;
        }
        .faq-item:hover {
            border-color: var(--neon-cyan-dim);
            box-shadow: var(--shadow-glow);
        }
        .faq-question {
            font-weight: 600;
            color: #fff;
            font-size: 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .faq-question i {
            color: var(--neon-cyan);
            transition: var(--transition);
        }
        .faq-item[aria-expanded="true"] .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            color: var(--text-secondary);
            padding-top: 0.8rem;
            font-size: 0.92rem;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            margin-top: 0.8rem;
            display: none;
        }
        .faq-item[aria-expanded="true"] .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(145deg, #111827, #0b0e17);
            border-top: 1px solid var(--border-glow);
            border-bottom: 1px solid var(--border-glow);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, var(--neon-cyan-dim) 0%, transparent 60%);
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
        }
        .cta-section p {
            color: var(--text-secondary);
            font-size: 1.05rem;
        }
        .btn-neon {
            display: inline-block;
            background: var(--neon-cyan);
            color: #000;
            font-weight: 600;
            padding: 0.8rem 2.2rem;
            border-radius: 40px;
            border: none;
            transition: var(--transition);
            box-shadow: 0 0 30px var(--neon-cyan-dim);
            font-size: 1rem;
            text-decoration: none;
        }
        .btn-neon:hover {
            background: #fff;
            color: #000;
            box-shadow: 0 0 50px var(--neon-cyan);
            transform: scale(1.03);
        }
        .btn-neon-outline {
            display: inline-block;
            background: transparent;
            color: var(--neon-cyan);
            font-weight: 600;
            padding: 0.7rem 2rem;
            border-radius: 40px;
            border: 1px solid var(--neon-cyan);
            transition: var(--transition);
            font-size: 1rem;
            text-decoration: none;
        }
        .btn-neon-outline:hover {
            background: var(--neon-cyan);
            color: #000;
            box-shadow: 0 0 40px var(--neon-cyan);
        }

        /* ===== 标签 / 徽章 ===== */
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            margin-top: 0.8rem;
        }
        .tag-item {
            background: var(--neon-cyan-dim);
            color: var(--neon-cyan);
            font-size: 0.8rem;
            padding: 0.25rem 1rem;
            border-radius: 20px;
            border: 1px solid var(--border-glow);
            transition: var(--transition);
        }
        .tag-item:hover {
            background: var(--neon-cyan);
            color: #000;
            border-color: var(--neon-cyan);
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #0a0d15;
            border-top: 1px solid var(--border-glow);
            padding: 3.5rem 0 1.8rem 0;
            color: var(--text-secondary);
        }
        .footer-brand {
            display: inline-block;
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.8rem;
            transition: var(--transition);
        }
        .footer-brand:hover {
            color: var(--neon-cyan);
            text-shadow: 0 0 20px var(--neon-cyan);
        }
        .footer-desc {
            font-size: 0.9rem;
            max-width: 360px;
            line-height: 1.6;
            color: var(--text-muted);
        }
        .footer-heading {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .footer-links a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--neon-cyan);
            padding-left: 4px;
        }
        .footer-divider {
            border-color: rgba(255, 255, 255, 0.05);
            margin: 2rem 0 1.2rem 0;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .footer-social {
            display: flex;
            gap: 1rem;
        }
        .footer-social a {
            color: var(--text-muted);
            font-size: 1.2rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            color: var(--neon-cyan);
            transform: scale(1.15);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .section-title {
                font-size: 1.9rem;
            }
            .page-banner h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 3.2rem 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
                margin-bottom: 2rem;
            }
            .page-banner {
                padding: 4.5rem 0 2.8rem 0;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner p {
                font-size: 0.95rem;
            }
            .navbar-custom .navbar-nav .nav-link {
                padding: 0.5rem 1rem;
                font-size: 0.9rem;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 0.8rem;
                text-align: center;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .card-services {
                padding: 1.5rem 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .btn-neon,
            .btn-neon-outline {
                padding: 0.6rem 1.4rem;
                font-size: 0.9rem;
            }
            .step-card {
                padding: 1.2rem 0.8rem;
            }
        }

        /* ===== 辅助 ===== */
        .text-neon {
            color: var(--neon-cyan);
        }
        .bg-neon-dim {
            background: var(--neon-cyan-dim);
        }
        .border-neon {
            border-color: var(--border-glow);
        }
        .shadow-glow {
            box-shadow: var(--shadow-glow);
        }