/* roulang page: index */
:root {
            /* 设计变量 */
            --color-primary: #8A2BE2; /* 能量紫 */
            --color-secondary: #00FFFF; /* 霓虹青 */
            --color-dark: #1A1A2E; /* 深空灰 */
            --color-bg: #0F0F1A;
            --color-text: #E0E0E0;
            --color-text-light: #FFFFFF;
            --color-text-muted: #888888;
            --color-border: rgba(255, 255, 255, 0.1);
            --color-card-bg: rgba(30, 30, 50, 0.7);
            --radius-lg: 12px;
            --radius-pill: 24px;
            --shadow-glow: 0 8px 32px rgba(0, 255, 255, 0.1);
            --shadow-glow-strong: 0 0 25px rgba(0, 255, 255, 0.7);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --spacing-section: 5rem;
            --spacing-card: 2rem;
        }
        
        /* 基础重置 */
        *, *::before, *::after {
            box-sizing: border-box;
        }
        
        html {
            scroll-behavior: smooth;
        }
        
        body {
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
            font-size: 1rem;
            line-height: 1.8;
            color: var(--color-text);
            background-color: var(--color-bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }
        
        a {
            color: var(--color-secondary);
            text-decoration: none;
            transition: var(--transition);
        }
        
        a:hover {
            color: var(--color-primary);
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        button, 
        .button {
            cursor: pointer;
            border: none;
            font-family: inherit;
        }
        
        input, 
        textarea {
            font-family: inherit;
        }
        
        /* 布局容器 */
        .page-container {
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        
        .main-content {
            flex: 1 0 auto;
        }
        
        .section-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        
        /* 导航样式 - 双层设计 */
        .site-header {
            background-color: var(--color-dark);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
        }
        
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 1.5rem;
            border-bottom: 1px solid var(--color-border);
        }
        
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        
        .logo-text {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--color-text-light);
            background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .header-actions {
            display: flex;
            align-items: center;
            gap: 1.5rem;
        }
        
        .search-btn {
            background: transparent;
            color: var(--color-text);
            font-size: 1.2rem;
            padding: 0.5rem;
            border-radius: 50%;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .search-btn:hover {
            background-color: rgba(255, 255, 255, 0.05);
            color: var(--color-secondary);
        }
        
        /* 第二行导航 - 频道Tabs */
        .nav-tabs-row {
            background-color: #252547;
            padding: 0 1.5rem;
        }
        
        .nav-tabs-container {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            overflow-x: auto;
            padding: 0.75rem 0;
            -webkit-overflow-scrolling: touch;
        }
        
        .nav-tabs-container::-webkit-scrollbar {
            height: 4px;
        }
        
        .nav-tabs-container::-webkit-scrollbar-track {
            background: rgba(255, 255, 255, 0.05);
        }
        
        .nav-tabs-container::-webkit-scrollbar-thumb {
            background: var(--color-primary);
            border-radius: 2px;
        }
        
        .nav-tab {
            display: inline-flex;
            padding: 0.75rem 1.5rem;
            background-color: transparent;
            color: var(--color-text);
            border-radius: var(--radius-pill);
            white-space: nowrap;
            font-weight: 500;
            transition: var(--transition);
        }
        
        .nav-tab:hover {
            background-color: rgba(255, 255, 255, 0.1);
            color: var(--color-text-light);
        }
        
        .nav-tab.active {
            background-color: var(--color-primary);
            color: var(--color-text-light);
            box-shadow: 0 4px 12px rgba(138, 43, 226, 0.4);
        }
        
        /* Hero区域 */
        .hero-section {
            min-height: 90vh;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-color: var(--color-dark);
            position: relative;
            overflow: hidden;
            padding: var(--spacing-section) 0;
        }
        
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, rgba(15, 15, 26, 0.9) 0%, rgba(15, 15, 26, 0.7) 50%, rgba(15, 15, 26, 0.4) 100%);
            z-index: 1;
        }
        
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
        }
        
        .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--color-text-light);
            margin-bottom: 1.5rem;
            text-shadow: 0 4px 12px rgba(0, 0, 0, 0.6);
        }
        
        .hero-subtitle {
            font-size: 1.5rem;
            color: var(--color-text);
            margin-bottom: 2.5rem;
            max-width: 90%;
        }
        
        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
        }
        
        .game-model-container {
            width: 100%;
            max-width: 500px;
            height: 400px;
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, rgba(138, 43, 226, 0.2) 0%, rgba(0, 255, 255, 0.1) 100%);
            border: 1px solid var(--color-border);
            backdrop-filter: blur(10px);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-glow);
        }
        
        .game-model-placeholder {
            width: 300px;
            height: 300px;
            background: radial-gradient(circle at center, var(--color-primary) 0%, transparent 70%);
            border-radius: 50%;
            position: relative;
            animation: pulse 4s infinite alternate;
        }
        
        @keyframes pulse {
            0% {
                transform: scale(1);
                opacity: 0.7;
            }
            100% {
                transform: scale(1.1);
                opacity: 1;
            }
        }
        
        /* 按钮样式 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 1rem 2.5rem;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 1.1rem;
            transition: var(--transition);
            white-space: nowrap;
        }
        
        .btn-primary {
            background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
            color: var(--color-text-light);
            box-shadow: 0 0 15px rgba(138, 43, 226, 0.5);
        }
        
        .btn-primary:hover {
            box-shadow: var(--shadow-glow-strong);
            transform: translateY(-2px);
        }
        
        .btn-secondary {
            background: transparent;
            color: var(--color-secondary);
            border: 2px solid var(--color-secondary);
            margin-left: 1rem;
        }
        
        .btn-secondary:hover {
            background-color: rgba(0, 255, 255, 0.1);
            transform: translateY(-2px);
        }
        
        .btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-top: 2rem;
        }
        
        /* 板块通用样式 */
        .section {
            padding: var(--spacing-section) 0;
        }
        
        .section-title {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 1rem;
            text-align: center;
            position: relative;
        }
        
        .section-title::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
            border-radius: 2px;
        }
        
        .section-subtitle {
            font-size: 1.2rem;
            color: var(--color-text-muted);
            text-align: center;
            max-width: 700px;
            margin: 0 auto 3rem;
        }
        
        /* 服务展示 - 非对称布局 */
        .services-section {
            background-color: var(--color-dark);
        }
        
        .services-layout {
            display: grid;
            grid-template-columns: 1fr 2fr 1fr;
            gap: 2rem;
            margin-top: 3rem;
        }
        
        .service-card {
            background-color: var(--color-card-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: var(--spacing-card);
            backdrop-filter: blur(10px);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        
        .service-card:hover {
            transform: translateY(-10px);
            box-shadow: var(--shadow-glow);
            border-color: rgba(0, 255, 255, 0.3);
        }
        
        .service-card.main {
            grid-row: span 2;
        }
        
        .service-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            color: white;
            font-size: 1.8rem;
        }
        
        .service-title {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--color-text-light);
            margin-bottom: 1rem;
        }
        
        .service-desc {
            color: var(--color-text);
            margin-bottom: 1.5rem;
            flex-grow: 1;
        }
        
        .service-link {
            color: var(--color-secondary);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        
        /* 优势与数据仪表盘 */
        .advantages-section {
            background-color: var(--color-bg);
        }
        
        .dashboard-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }
        
        .dashboard-card {
            background-color: var(--color-card-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: var(--spacing-card);
            backdrop-filter: blur(10px);
            position: relative;
            overflow: hidden;
            transition: var(--transition);
        }
        
        .dashboard-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
        }
        
        .dashboard-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-glow);
        }
        
        .stat-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--color-secondary);
            margin-bottom: 0.5rem;
            line-height: 1;
        }
        
        .stat-label {
            font-size: 1.2rem;
            color: var(--color-text-light);
            margin-bottom: 1rem;
        }
        
        .stat-desc {
            color: var(--color-text);
            font-size: 0.95rem;
        }
        
        /* 案例合作伙伴 .cases-section {
            background-color: var(--color-dark);
            position: relative;
        }
        
        .cases-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%2300ffff' fill-opacity='0.03' fill-rule='evenodd'/%3E%3C/svg%3E");
            opacity: 0.3;
            z-index: 0;
        }
        
        .cases-container {
            position: relative;
            z-index: 1;
        }
        
        .cases-scroll {
            display: flex;
            gap: 2rem;
            overflow-x: auto;
            padding: 2rem 1rem;
            scroll-behavior: smooth;
            -webkit-overflow-scrolling: touch;
        }
        
        .cases-scroll::-webkit-scrollbar {
            height: 6px;
        }
        
        .cases-scroll::-webkit-scrollbar-track {
            background: rgba(255, 255, 255, 0.05);
            border-radius: 3px;
        }
        
        .cases-scroll::-webkit-scrollbar-thumb {
            background: var(--color-primary);
            border-radius: 3px;
        }
        
        .case-card {
            flex: 0 0 320px;
            background-color: var(--color-card-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border);
            transition: var(--transition);
            backdrop-filter: blur(10px);
        }
        
        .case-card:hover {
            transform: translateY(-10px);
            box-shadow: var(--shadow-glow);
            border-color: rgba(0, 255, 255, 0.3);
        }
        
        .case-image {
            height: 180px;
            overflow: hidden;
        }
        
        .case-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .case-card:hover .case-image img {
            transform: scale(1.05);
        }
        
        .case-content {
            padding: 1.5rem;
        }
        
        .case-title {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--color-text-light);
            margin-bottom: 0.75rem;
        }
        
        .case-desc {
            color: var(--color-text);
            font-size: 0.95rem;
            margin-bottom: 1rem;
            line-height: 1.6;
        }
        
        .case-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        
        .case-tag {
            background-color: rgba(138, 43, 226, 0.2);
            color: var(--color-secondary);
            padding: 0.25rem 0.75rem;
            border-radius: 12px;
            font-size: 0.8rem;
            font-weight: 500;
        }
        
        /* 核心方案流程 */
        .process-section {
            background-color: var(--color-bg);
        }
        
        .process-timeline {
            position: relative;
            max-width: 900px;
            margin: 4rem auto 0;
            padding: 2rem 0;
        }
        
        .process-timeline::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 2px;
            height: 100%;
            background: linear-gradient(to bottom, var(--color-primary), var(--color-secondary));
        }
        
        .process-step {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 4rem;
            position: relative;
        }
        
        .process-step:nth-child(odd) {
            flex-direction: row-reverse;
        }
        
        .process-step:last-child {
            margin-bottom: 0;
        }
        
        .step-content {
            width: 45%;
            background-color: var(--color-card-bg);
            border-radius: var(--radius-lg);
            padding: var(--spacing-card);
            border: 1px solid var(--color-border);
            backdrop-filter: blur(10px);
            position: relative;
        }
        
        .step-marker {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.5rem;
            font-weight: 700;
            box-shadow: 0 0 20px rgba(138, 43, 226, 0.5);
            z-index: 2;
        }
        
        .process-step:nth-child(odd) .step-marker {
            right: -30px;
        }
        
        .process-step:nth-child(even) .step-marker {
            left: -30px;
        }
        
        .step-title {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--color-text-light);
            margin-bottom: 0.75rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        
        .step-icon {
            color: var(--color-secondary);
            font-size: 1.2rem;
        }
        
        .step-desc {
            color: var(--color-text);
        }
        
        /* FAQ区域 */
        .faq-section {
            background-color: var(--color-dark);
        }
        
        .faq-container {
            max-width: 800px;
            margin: 3rem auto 0;
        }
        
        .faq-item {
            background-color: var(--color-card-bg);
            border-radius: var(--radius-lg);
            margin-bottom: 1rem;
            border: 1px solid var(--color-border);
            overflow: hidden;
            backdrop-filter: blur(10px);
            transition: var(--transition);
        }
        
        .faq-item:hover {
            border-color: rgba(0, 255, 255, 0.2);
        }
        
        .faq-question {
            padding: 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            position: relative;
        }
        
        .faq-question::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            height: 100%;
            width: 4px;
            background-color: var(--color-secondary);
            transition: var(--transition);
        }
        
        .faq-item.active .faq-question::before {
            background-color: var(--color-primary);
        }
        
        .faq-question h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--color-text-light);
            margin: 0;
            padding-left: 1rem;
        }
        
        .faq-toggle {
            color: var(--color-secondary);
            font-size: 1.2rem;
            transition: transform 0.3s ease;
        }
        
        .faq-item.active .faq-toggle {
            transform: rotate(45deg);
            color: var(--color-primary);
        }
        
        .faq-answer {
            padding: 0 1.5rem;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.5s ease, padding 0.3s ease;
        }
        
        .faq-item.active .faq-answer {
            padding: 0 1.5rem 1.5rem;
            max-height: 300px;
        }
        
        .faq-answer p {
            color: var(--color-text);
            margin: 0;
            padding-left: 1rem;
        }
        
        /* CTA联系区域 */
        .cta-section {
            background: linear-gradient(135deg, var(--color-dark) 0%, #0a0a1a 100%);
            position: relative;
            overflow: hidden;
            padding: var(--spacing-section) 0;
        }
        
        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.2;
            z-index: 0;
        }
        
        .cta-container {
            position: relative;
            z-index: 1;
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }
        
        .cta-title {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--color-text-light);
            margin-bottom: 1.5rem;
            text-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
        }
        
        .cta-subtitle {
            font-size: 1.3rem;
            color: var(--color-text);
            margin-bottom: 3rem;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }
        
        .cta-form {
            background-color: rgba(30, 30, 50, 0.8);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            backdrop-filter: blur(10px);
            border: 1px solid var(--color-border);
            margin-top: 2rem;
        }
        
        .form-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
            margin-bottom: 2rem;
        }
        
        .form-group {
            text-align: left;
        }
        
        .form-group.full-width {
            grid-column: span 2;
        }
        
        .form-label {
            display: block;
            margin-bottom: 0.5rem;
            color: var(--color-text-light);
            font-weight: 500;
        }
        
        .form-input {
            width: 100%;
            padding: 1rem 1.2rem;
            background-color: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--color-border);
            border-radius: 8px;
            color: var(--color-text);
            font-size: 1rem;
            transition: var(--transition);
        }
        
        .form-input:focus {
            outline: none;
            border-color: var(--color-secondary);
            box-shadow: 0 0 0 3px rgba(0, 255, 255, 0.2);
        }
        
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        
        .form-submit {
            width: 100%;
            padding: 1.2rem;
            font-size: 1.1rem;
            font-weight: 600;
        }
        
        /* 页脚 */
        .site-footer {
            background-color: #0a0a14;
            padding: 4rem 0 2rem;
            margin-top: auto;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 3rem;
            margin-bottom: 3rem;
        }
        
        .footer-logo {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-text-light);
            background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 1.5rem;
            display: inline-block;
        }
        
        .footer-desc {
            color: var(--color-text);
            margin-bottom: 1.5rem;
        }
        
        .footer-links h3,
        .footer-contact h3 {
            font-size: 1.3rem;
            color: var(--color-text-light);
            margin-bottom: 1.5rem;
            position: relative;
            padding-bottom: 0.75rem;
        }
        
        .footer-links h3::after,
        .footer-contact h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 3px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
        }
        
        .footer-links ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        
        .footer-links a {
            color: var(--color-text);
            display: flex;
            align-items: center;
            gap: 0.5rem;
            transition: var(--transition);
        }
        
        .footer-links a:hover {
            color: var(--color-secondary);
            transform: translateX(5px);
        }
        
        .footer-links i {
            font-size: 0.9rem;
            width: 16px;
        }
        
        .contact-info {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        
        .contact-info li {
            display: flex;
            align-items: flex-start;
            margin-bottom: 1.2rem;
            color: var(--color-text);
        }
        
        .contact-info i {
            color: var(--color-secondary);
            margin-right: 0.8rem;
            margin-top: 0.2rem;
            font-size: 1.1rem;
            min-width: 20px;
        }
        
        .social-links {
            display: flex;
            gap: 1rem;
            margin-top: 1.5rem;
        }
        
        .social-link {
            width: 40px;
            height: 40px;
            border-radius: 50         display: flex;
            align-items: center;
            justify-content: center;
            background-color: rgba(255, 255, 255, 0.05);
            color: var(--color-text);
            transition: var(--transition);
        }
        
        .social-link:hover {
            background-color: var(--color-secondary);
            color: var(--color-dark);
            transform: translateY(-3px);
        }
        
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 2rem;
            text-align: center;
            color: var(--color-text-muted);
            font-size: 0.9rem;
        }
        
        .footer-bottom a {
            color: var(--color-secondary);
        }
        
        /* 响应式断点 */
        @media (max-width: 1024px) {
            :root {
                --spacing-section: 4rem;
            }
            
            .hero-grid {
                gap: 2rem;
            }
            
            .hero-title {
                font-size: 2.8rem;
            }
            
            .services-layout {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            
            .service-card.main {
                grid-row: auto;
            }
            
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 768px) {
            :root {
                --spacing-section: 3rem;
                --spacing-card: 1.5rem;
            }
            
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 3rem;
            }
            
            .hero-visual {
                order: -1;
            }
            
            .game-model-container {
                max-width: 400px;
                height: 300px;
                margin: 0 auto;
            }
            
            .game-model-placeholder {
                width: 200px;
                height: 200px;
            }
            
            .btn-group {
                flex-direction: column;
                align-items: flex-start;
            }
            
            .btn-secondary {
                margin-left: 0;
                margin-top: 1rem;
            }
            
            .dashboard-grid {
                grid-template-columns: 1fr;
            }
            
            .process-timeline::before {
                left: 30px;
            }
            
            .process-step,
            .process-step:nth-child(odd) {
                flex-direction: row;
                margin-bottom: 3rem;
            }
            
            .step-content {
                width: calc(100% - 80px);
                margin-left: 80px;
            }
            
            .step-marker {
                left: 0 !important;
                right: auto !important;
                transform: translateY(-50%);
            }
            
            .form-grid {
                grid-template-columns: 1fr;
            }
            
            .form-group.full-width {
                grid-column: span 1;
            }
            
            .footer-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
        }
        
        @media (max-width: 640px) {
            .header-top {
                flex-wrap: wrap;
            }
            
            .header-actions {
                width: 100%;
                justify-content: space-between;
                margin-top: 1rem;
            }
            
            .nav-tabs-row {
                padding: 0 1rem;
            }
            
            .hero-title {
                font-size: 2.2rem;
            }
            
            .hero-subtitle {
                font-size: 1.2rem;
            }
            
            .section-title {
                font-size: 2rem;
            }
            
            .cta-title {
                font-size: 2.2rem;
            }
            
            .cta-subtitle {
                font-size: 1.1rem;
            }
            
            .cta-form {
                padding: 1.5rem;
            }
        }
        
        /* 移动端菜单 */
        .mobile-menu-toggle {
            display: none;
            background: transparent;
            color: var(--color-text);
            font-size: 1.5rem;
            border: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: 4px;
        }
        
        .mobile-menu-toggle:hover {
            background-color: rgba(255, 255, 255, 0.05);
        }
        
        @media (max-width: 768px) {
            .mobile-menu-toggle {
                display: flex;
            }
            
            .nav-tabs-row {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: #252547;
                padding: 1rem;
                box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
                z-index: 100;
            }
            
            .nav-tabs-row.active {
                display: block;
            }
            
            .nav-tabs-container {
                flex-direction: column;
                overflow-x: visible;
                gap: 0.5rem;
            }
            
            .nav-tab {
                width: 100%;
                border-radius: 8px;
                justify-content: center;
            }
        }
        
        /* 工具类 */
        .text-gradient {
            background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .mt-0 { margin-top: 0 !important; }
        .mt-1 { margin-top: 1rem !important; }
        .mt-2 { margin-top: 2rem !important; }
        .mt-3 { margin-top: 3rem !important; }
        .mt-4 { margin-top: 4rem !important; }
        
        .mb-0 { margin-bottom: 0 !important; }
        .mb-1 { margin-bottom: 1rem !important; }
        .mb-2 { margin-bottom: 2rem !important; }
        .mb-3 { margin-bottom: 3rem !important; }
        .mb-4 { margin-bottom: 4rem !important; }
        
        .text-center { text-align: center !important; }
        .text-left { text-align: left !important; }
        .text-right { text-align: right !important; }
        
        .hidden-mobile {
            display: block;
        }
        
        @media (max-width: 768px) {
            .hidden-mobile {
                display: none !important;
            }
        }
        
        .visible-mobile {
            display: none;
        }
        
        @media (max-width: 768px) {
            .visible-mobile {
                display: block !important;
            }
        }

/* roulang page: category1 */
/* === 设计变量 === */
        :root {
            --color-primary: #8A2BE2; /* 能量紫 */
            --color-secondary: #00FFFF; /* 霓虹青 */
            --color-dark: #1A1A2E; /* 深空灰 */
            --color-light: #E0E0E0;
            --color-white: #FFFFFF;
            --color-muted: #888888;
            --color-card-bg: rgba(30, 30, 50, 0.7);
            --color-border: rgba(255, 255, 255, 0.1);
            --radius-lg: 12px;
            --radius-pill: 24px;
            --shadow-card: 0 8px 32px rgba(0, 255, 255, 0.1);
            --shadow-glow: 0 0 15px rgba(138, 43, 226, 0.5);
            --spacing-section: 5rem;
            --spacing-card: 2rem;
        }
        @media (max-width: 640px) {
            :root {
                --spacing-section: 3rem;
            }
        }

        /* === 基础 Reset === */
        *, *::before, *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
            font-size: 1rem;
            line-height: 1.8;
            color: var(--color-light);
            background-color: var(--color-dark);
            margin: 0;
            overflow-x: hidden;
        }
        h1, h2, h3, h4 {
            color: var(--color-white);
            margin-top: 0;
            font-weight: 600;
        }
        h1 {
            font-size: 2.5rem;
            font-weight: 700;
        }
        h2 {
            font-size: 2rem;
            margin-bottom: 1.5rem;
            position: relative;
            padding-bottom: 0.75rem;
        }
        h2::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 60px;
            height: 4px;
            background: linear-gradient(to right, var(--color-primary), var(--color-secondary));
            border-radius: 2px;
        }
        h3 {
            font-size: 1.5rem;
        }
        a {
            color: var(--color-secondary);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: var(--color-white);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .section-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .section-padding {
            padding-top: var(--spacing-section);
            padding-bottom: var(--spacing-section);
        }

        /* === 导航样式 (沿用首页) === */
        .site-header {
            background-color: var(--color-dark);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 1.5rem;
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }
        .brand-logo {
            display: flex;
            align-items: center;
        }
        .logo-text {
            font-size: 1.8rem;
            font-weight: 700;
            background: linear-gradient(to right, var(--color-primary), var(--color-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 1.5rem;
        }
        .search-btn {
            background: none;
            border: none;
            color: var(--color-light);
            font-size: 1.2rem;
            cursor: pointer;
            transition: color 0.3s;
        }
        .search-btn:hover {
            color: var(--color-secondary);
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--color-light);
            font-size: 1.5rem;
            cursor: pointer;
        }
        .nav-tabs-row {
            background-color: #252547;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            padding: 0.5rem 0;
        }
        .nav-tabs-container {
            display: flex;
            gap: 0.5rem;
            padding: 0 1rem;
        }
        .nav-tab {
            padding: 0.6rem 1.5rem;
            background: rgba(255,255,255,0.05);
            color: var(--color-light);
            border-radius: var(--radius-pill);
            white-space: nowrap;
            font-size: 0.95rem;
            transition: all 0.3s ease;
            border: 1px solid transparent;
        }
        .nav-tab:hover {
            background: rgba(255,255,255,0.1);
            color: var(--color-white);
        }
        .nav-tab.active {
            background: var(--color-primary);
            color: var(--color-white);
            box-shadow: var(--shadow-glow);
        }
        @media (max-width: 640px) {
            .header-actions .btn-primary {
                display: none;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-tabs-container {
                padding: 0 0.5rem;
            }
            .nav-tab {
                padding: 0.5rem 1rem;
                font-size: 0.9rem;
            }
        }

        /* === 分类页 Hero === */
        .category-hero {
            background: linear-gradient(rgba(26, 26, 46, 0.9), rgba(26, 26, 46, 0.95)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            padding: 4rem 0;
            text-align: center;
        }
        .category-hero h1 {
            margin-bottom: 1rem;
        }
        .category-hero .lead {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto 2rem;
            color: var(--color-muted);
        }

        /* === 主内容区 - 筛选器 + 列表 === */
        .resource-main {
            background-color: var(--color-dark);
        }
        .resource-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 1024px) {
            .resource-layout {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
        }

        /* 筛选器侧边栏 */
        .resource-sidebar {
            background: var(--color-card-bg);
            backdrop-filter: blur(10px);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: var(--spacing-card);
            height: fit-content;
            position: sticky;
            top: 120px;
        }
        .sidebar-title {
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            color: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            padding-bottom: 0.5rem;
        }
        .filter-group {
            margin-bottom: 2rem;
        }
        .filter-group h4 {
            font-size: 1rem;
            color: var(--color-secondary);
            margin-bottom: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .filter-options {
            list-style: none;
            margin-left: 0;
        }
        .filter-options li {
            margin-bottom: 0.5rem;
        }
        .filter-options a {
            display: block;
            padding: 0.5rem 0.8rem;
            border-radius: 6px;
            color: var(--color-light);
            background: rgba(255,255,255,0.03);
        }
        .filter-options a:hover,
        .filter-options a.active {
            background: rgba(138, 43, 226, 0.2);
            color: var(--color-white);
            border-left: 3px solid var(--color-primary);
        }
        .hot-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .tag {
            background: rgba(0, 255, 255, 0.1);
            color: var(--color-secondary);
            padding: 0.3rem 0.8rem;
            border-radius: 4px;
            font-size: 0.85rem;
            transition: all 0.3s;
        }
        .tag:hover {
            background: var(--color-secondary);
            color: var(--color-dark);
        }

        /* 资源列表 */
        .resource-list {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .resource-item {
            background: var(--color-card-bg);
            backdrop-filter: blur(10px);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: grid;
            grid-template-columns: 200px 1fr;
            gap: 1.5rem;
        }
        .resource-item:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-card);
            border-color: rgba(0, 255, 255, 0.3);
        }
        @media (max-width: 768px) {
            .resource-item {
                grid-template-columns: 1fr;
            }
        }
        .resource-thumb {
            position: relative;
            overflow: hidden;
            min-height: 150px;
        }
        .resource-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .resource-item:hover .resource-thumb img {
            transform: scale(1.05);
        }
        .resource-badge {
            position: absolute;
            top: 10px;
            left: 10px;
            background: var(--color-primary);
            color: white;
            padding: 0.3rem 0.7rem;
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .resource-content {
            padding: 1.5rem 1.5rem 1.5rem 0;
        }
        @media (max-width: 768px) {
            .resource-content {
                padding: 1.5rem;
            }
        }
        .resource-content h3 {
            margin-bottom: 0.5rem;
        }
        .resource-content h3 a {
            color: var(--color-white);
        }
        .resource-meta {
            display: flex;
            gap: 1rem;
            color: var(--color-muted);
            font-size: 0.9rem;
            margin-bottom: 1rem;
        }
        .resource-meta i {
            margin-right: 0.3rem;
        }
        .resource-desc {
            color: var(--color-light);
            margin-bottom: 1.2rem;
        }
        .resource-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .resource-stats {
            display: flex;
            gap: 1rem;
            font-size: 0.9rem;
        }
        .stat {
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .btn-download {
            background: linear-gradient(to right, var(--color-primary), #9b4dff);
            color: white;
            border: none;
            padding: 0.6rem 1.5rem;
            border-radius: var(--radius-pill);
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-glow);
        }
        .btn-download:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 25px rgba(0, 255, 255, 0.7);
        }

        /* === 门户特色板块 === */
        .portal-features {
            background: rgba(0, 0, 0, 0.2);
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
        }
        .feature-card {
            background: var(--color-card-bg);
            border-radius: var(--radius-lg);
            padding: var(--spacing-card);
            text-align: center;
            border: 1px solid var(--color-border);
            transition: all 0.3s ease;
        }
        .feature-card:hover {
            border-color: var(--color-secondary);
            transform: translateY(-5px);
        }
        .feature-icon {
            font-size: 3rem;
            color: var(--color-secondary);
            margin-bottom: 1rem;
        }
        .feature-card h3 {
            margin-bottom: 1rem;
        }

        /* === FAQ === */
        .faq-accordion {
            max-width: 900px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-card-bg);
            border-radius: var(--radius-lg);
            margin-bottom: 1rem;
            overflow: hidden;
            border: 1px solid var(--color-border);
            transition: all 0.3s ease;
        }
        .fafaq-question {
            padding: 1.5rem;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--color-white);
            transition: background 0.3s;
            position: relative;
        }
        .faq-question::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 5px;
            background: var(--color-secondary);
            transition: background 0.3s;
        }
        .faq-item.active .faq-question::before {
            background: var(--color-primary);
        }
        .faq-question:hover {
            background: rgba(255,255,255,0.05);
        }
        .faq-toggle {
            color: var(--color-secondary);
            transition: transform 0.3s;
        }
        .faq-item.active .faq-toggle {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 1.5rem;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.5s ease, padding 0.3s ease;
            color: var(--color-light);
        }
        .faq-item.active .faq-answer {
            padding: 0 1.5rem 1.5rem;
            max-height: 500px;
        }

        /* === 分类页 CTA === */
        .category-cta {
            background: linear-gradient(135deg, rgba(26,26,46,0.9) 0%, rgba(0,0,20,0.9) 100%), url('/assets/images/backpic/back-3.webp') center/cover fixed;
            text-align: center;
            color: var(--color-white);
        }
        .category-cta h2 {
            color: var(--color-white);
        }
        .category-cta h2::after {
            left: 50%;
            transform: translateX(-50%);
        }
        .cta-form {
            max-width: 600px;
            margin: 2rem auto 0;
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 1rem;
        }
        @media (max-width: 640px) {
            .cta-form {
                grid-template-columns: 1fr;
            }
        }
        .cta-input {
            background: rgba(255,255,255,0.08);
            border: 1px solid rgba(255,255,255,0.2);
            border-radius: var(--radius-pill);
            padding: 0.9rem 1.5rem;
            color: var(--color-white);
            font-size: 1rem;
            transition: all 0.3s;
        }
        .cta-input:focus {
            outline: none;
            border-color: var(--color-secondary);
            box-shadow: 0 0 0 3px rgba(0, 255, 255, 0.2);
        }
        .cta-btn {
            background: linear-gradient(to right, var(--color-primary), var(--color-secondary));
            color: white;
            border: none;
            padding: 0.9rem 2.5rem;
            border-radius: var(--radius-pill);
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-glow);
        }
        .cta-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(0, 255, 255, 0.4);
        }

        /* === 页脚样式 (沿用首页) === */
        .site-footer {
            background-color: #0f0f1a;
            padding: 3rem 0 2rem;
            border-top: 1px solid rgba(255,255,255,0.05);
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 3rem;
            margin-bottom: 2rem;
        }
        @media (max-width: 768px) {
            .footer-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
        }
        .footer-brand .footer-logo {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-white);
            margin-bottom: 1rem;
            background: linear-gradient(to right, var(--color-primary), var(--color-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .footer-desc {
            color: var(--color-muted);
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }
        .social-links {
            display: flex;
            gap: 1rem;
        }
        .social-link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(255,255,255,0.05);
            border-radius: 50%;
            color: var(--color-light);
            font-size: 1.2rem;
            transition: all 0.3s;
        }
        .social-link:hover {
            background: var(--color-secondary);
            color: var(--color-dark);
            transform: translateY(-3px);
        }
        .footer-links h3,
        .footer-contact h3 {
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            color: var(--color-white);
        }
        .footer-links ul,
        .contact-info {
            list-style: none;
            margin-left: 0;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: var(--color-muted);
            display: flex;
            align-items: center;
            gap: 0.5rem;
            transition: color 0.3s, transform 0.3s;
        }
        .footer-links a:hover {
            color: var(--color-secondary);
            transform: translateX(5px);
        }
        .contact-info li {
            display: flex;
            align-items: flex-start;
            margin-bottom: 1.2rem;
            color: var(--color-muted);
            line-height: 1.6;
        }
        .contact-info i {
            color: var(--color-secondary);
            margin-right: 0.8rem;
            margin-top: 0.2rem;
            min-width: 20px;
        }
        .footer-copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.05);
            color: var(--color-muted);
            font-size: 0.9rem;
        }
        .footer-copyright a {
            color: var(--color-secondary);
        }