/* roulang page: index */
:root {
      --primary: #0F172A;
      --primary-light: #1E293B;
      --accent-emerald: #10B981;
      --accent-emerald-hover: #059669;
      --accent-purple: #6366F1;
      --accent-cyan: #06B6D4;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --bg-dark: #0B0F19;
      --text-main: #1E293B;
      --text-muted: #64748B;
      --text-light: #94A3B8;
      --border-color: rgba(15, 23, 42, 0.08);
      --border-dark: rgba(255, 255, 255, 0.12);
      --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
      --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
      --shadow-glow: 0 0 20px rgba(16, 185, 129, 0.25);
      --radius: 8px;
      --radius-lg: 12px;
    }

    * { box-sizing: border-box; }
    body {
      margin: 0;
      padding: 0;
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease;
    }
    a:hover { color: var(--accent-emerald); }

    /* 顶部服务状态条与增强导航 */
    .site-top-bar {
      background: #080D1A;
      color: var(--text-light);
      font-size: 0.8125rem;
      padding: 6px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .status-pulse {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--accent-emerald);
      box-shadow: 0 0 8px var(--accent-emerald);
      margin-right: 6px;
    }
    .header-main {
      background: rgba(15, 23, 42, 0.95);
      backdrop-filter: blur(10px);
      position: sticky;
      top: 0;
      z-index: 1000;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding: 12px 0;
    }
    .brand-logo {
      font-size: 1.45rem;
      font-weight: 800;
      color: #FFFFFF;
      letter-spacing: -0.02em;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .brand-logo span { color: var(--accent-emerald); }
    .nav-menu {
      display: flex;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 24px;
      align-items: center;
    }
    .nav-menu a {
      color: #E2E8F0;
      font-size: 0.9375rem;
      font-weight: 500;
      padding: 6px 0;
      position: relative;
    }
    .nav-menu a:hover, .nav-menu a.active {
      color: var(--accent-emerald);
    }
    .nav-btn {
      background: var(--accent-emerald);
      color: #FFFFFF !important;
      padding: 8px 18px;
      border-radius: var(--radius);
      font-weight: 600;
      font-size: 0.875rem;
      box-shadow: 0 0 15px rgba(16, 185, 129, 0.3);
      transition: all 0.2s ease;
    }
    .nav-btn:hover {
      background: var(--accent-emerald-hover);
      box-shadow: 0 0 20px rgba(16, 185, 129, 0.5);
      transform: translateY(-1px);
    }

    /* 增强面包屑锚定线 */
    .visual-breadcrumb-bar {
      background: #111827;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      font-size: 0.8125rem;
      color: var(--text-light);
    }
    .visual-breadcrumb-bar span { color: #CBD5E1; }

    /* 通用板块与排版 */
    .content-section {
      padding: 80px 0;
      position: relative;
    }
    .section-title-wrap {
      margin-bottom: 48px;
      text-align: center;
    }
    .section-badge {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      padding: 4px 12px;
      border-radius: 9999px;
      background: rgba(16, 185, 129, 0.12);
      color: var(--accent-emerald);
      margin-bottom: 12px;
    }
    .section-title {
      font-size: 2.25rem;
      font-weight: 800;
      line-height: 1.25;
      color: var(--primary);
      margin-bottom: 14px;
    }
    .section-desc {
      font-size: 1rem;
      color: var(--text-muted);
      max-width: 680px;
      margin: 0 auto;
      line-height: 1.7;
    }

    /* 1. Hero 板块（自测选型问卷视觉与预览位） */
    .hero-banner {
      background: linear-gradient(135deg, rgba(15, 23, 42, 0.95), rgba(11, 15, 25, 0.98)), url('/assets/images/1aa31a796b36d6d9.webp') center/cover no-view;
      color: #FFFFFF;
      padding: 85px 0 95px;
      position: relative;
      overflow: hidden;
    }
    .hero-title {
      font-size: 2.85rem;
      font-weight: 800;
      line-height: 1.2;
      margin-bottom: 20px;
      color: #F8FAFC;
    }
    .hero-title em {
      font-style: normal;
      color: var(--accent-emerald);
    }
    .hero-lead {
      font-size: 1.05rem;
      color: #94A3B8;
      line-height: 1.8;
      margin-bottom: 30px;
    }
    .hero-stats-pills {
      display: flex;
      gap: 16px;
      margin-bottom: 32px;
      flex-wrap: wrap;
    }
    .stat-pill {
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.12);
      padding: 8px 16px;
      border-radius: var(--radius);
      font-size: 0.875rem;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .stat-pill i { color: var(--accent-emerald); }
    /* 选型测评卡片 */
    .hero-quiz-card {
      background: rgba(30, 41, 59, 0.7);
      border: 1px solid rgba(255, 255, 255, 0.15);
      backdrop-filter: blur(12px);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    }
    .quiz-preview-tag {
      background: rgba(99, 102, 241, 0.2);
      color: #A5B4FC;
      border: 1px solid rgba(99, 102, 241, 0.3);
      padding: 3px 10px;
      border-radius: 4px;
      font-size: 0.75rem;
      font-weight: 600;
    }
    .quiz-form-group {
      margin-bottom: 16px;
    }
    .quiz-form-group label {
      display: block;
      color: #CBD5E1;
      font-size: 0.875rem;
      margin-bottom: 6px;
      font-weight: 500;
    }
    .quiz-select, .quiz-input {
      width: 100%;
      background: rgba(15, 23, 42, 0.8) !important;
      border: 1px solid rgba(255, 255, 255, 0.15) !important;
      color: #FFFFFF !important;
      border-radius: var(--radius) !important;
      padding: 10px 12px !important;
      height: 42px !important;
      font-size: 0.875rem !important;
    }
    .quiz-submit-btn {
      width: 100%;
      background: var(--accent-emerald);
      color: #FFFFFF;
      font-weight: 700;
      padding: 12px;
      border-radius: var(--radius);
      border: none;
      cursor: pointer;
      box-shadow: var(--shadow-glow);
      transition: all 0.2s;
    }
    .quiz-submit-btn:hover {
      background: var(--accent-emerald-hover);
    }

    /* 2. 产品与资料目录区 (双列图文 + 架构清单) */
    .catalog-item-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .catalog-item {
      display: flex;
      gap: 16px;
      padding: 18px;
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      margin-bottom: 12px;
      transition: all 0.2s;
    }
    .catalog-item:hover {
      border-color: var(--accent-emerald);
      box-shadow: var(--shadow-sm);
      transform: translateX(4px);
    }
    .catalog-icon {
      font-size: 1.5rem;
      color: var(--accent-emerald);
      width: 44px;
      height: 44px;
      background: rgba(16, 185, 129, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius);
      flex-shrink: 0;
    }

    /* 3. 核心优势区 (6 卡片网格) */
    .grid-card-6 {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      padding: 28px 24px;
      border-radius: var(--radius-lg);
      height: 100%;
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
    }
    .grid-card-6:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
      border-color: rgba(16, 185, 129, 0.4);
    }
    .card-icon-bubble {
      width: 50px;
      height: 50px;
      border-radius: 12px;
      background: rgba(15, 23, 42, 0.04);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      color: var(--accent-purple);
      margin-bottom: 18px;
    }

    /* 4. 热门计算实例区 (3 核心卡片) */
    .product-tier-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px 24px;
      position: relative;
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .product-tier-card.featured {
      border: 2px solid var(--accent-emerald);
      box-shadow: var(--shadow-md);
    }
    .featured-tag {
      position: absolute;
      top: -12px;
      right: 20px;
      background: var(--accent-emerald);
      color: #FFFFFF;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 3px 12px;
      border-radius: 9999px;
    }
    .spec-list {
      list-style: none;
      margin: 20px 0;
      padding: 0;
      flex-grow: 1;
    }
    .spec-list li {
      font-size: 0.875rem;
      color: var(--text-muted);
      padding: 8px 0;
      border-bottom: 1px dashed rgba(15, 23, 42, 0.06);
      display: flex;
      justify-content: space-between;
    }

    /* 5. 深色架构全景区 (暗黑高对比) */
    .bg-dark-section {
      background: var(--bg-dark);
      color: #F8FAFC;
    }
    .bg-dark-section .section-title { color: #FFFFFF; }
    .bg-dark-section .section-desc { color: var(--text-light); }
    .architecture-box {
      border: 1px solid var(--border-dark);
      background: rgba(30, 41, 59, 0.5);
      border-radius: var(--radius-lg);
      padding: 28px;
    }
    .tech-pill-grid {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 18px;
    }
    .tech-badge {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      color: #E2E8F0;
      font-size: 0.8125rem;
      padding: 5px 12px;
      border-radius: 4px;
    }

    /* 6. 游戏厂商落地实践 (案例卡片) */
    .story-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      height: 100%;
    }
    .story-card-body {
      padding: 24px;
    }
    .story-metric {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--accent-emerald);
      margin-bottom: 4px;
    }

    /* 7. 性能业务数据条 */
    .metrics-bar-section {
      background: #0F172A;
      color: #FFFFFF;
      padding: 50px 0;
    }
    .metric-number {
      font-size: 2.5rem;
      font-weight: 800;
      color: var(--accent-emerald);
      line-height: 1.1;
      margin-bottom: 6px;
    }

    /* 8. 客户原声/评价卡片 */
    .review-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px;
      height: 100%;
      position: relative;
    }
    .quote-icon {
      font-size: 1.5rem;
      color: rgba(99, 102, 241, 0.2);
      margin-bottom: 12px;
    }
    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-top: 20px;
    }
    .reviewer-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
    }

    /* 9. 行业洞察与资讯速递 */
    .news-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 24px;
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .news-date {
      font-size: 0.8125rem;
      color: var(--text-light);
      margin-bottom: 8px;
    }

    /* 10. FAQ 手风琴 */
    .accordion-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      margin-bottom: 12px;
      overflow: hidden;
    }
    .accordion-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--primary);
      padding: 18px 24px;
      display: block;
      cursor: pointer;
      position: relative;
    }
    .accordion-title::after {
      content: '\f078';
      font-family: 'Font Awesome 6 Free';
      font-weight: 900;
      position: absolute;
      right: 24px;
      transition: transform 0.2s;
      font-size: 0.875rem;
      color: var(--text-muted);
    }
    .accordion-content {
      padding: 0 24px 20px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 11. 合作伙伴生态墙 */
    .partner-logo-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 20px 10px;
      text-align: center;
      font-weight: 700;
      color: #64748B;
      letter-spacing: 0.02em;
    }

    /* 12. 底部引导转化 CTA */
    .cta-final-section {
      background: linear-gradient(135deg, #0F172A 0%, #1E1B4B 100%);
      color: #FFFFFF;
      padding: 70px 0;
      border-radius: var(--radius-lg);
      margin: 40px auto 80px;
    }

    /* 页脚 */
    .site-footer {
      background: #080D1A;
      color: #94A3B8;
      padding: 60px 0 30px;
      font-size: 0.875rem;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
    }
    .footer-title {
      color: #FFFFFF;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-bottom {
      margin-top: 40px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      text-align: center;
      font-size: 0.8125rem;
    }

    @media (max-width: 768px) {
      .hero-title { font-size: 2rem; }
      .section-title { font-size: 1.75rem; }
      .nav-menu { display: none; }
    }