/* roulang page: index */
:root {
      --bg-dark: #0D1117;
      --bg-surface: #161B22;
      --bg-card: #21262D;
      --bg-deep: #080A0F;
      --primary: #00F59B;
      --primary-hover: #00D887;
      --accent-purple: #8A2BE2;
      --text-white: #F0F6FC;
      --text-gray: #8B949E;
      --text-muted: #484F58;
      --border-line: rgba(255, 255, 255, 0.08);
      --card-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
      --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      background-color: var(--bg-dark);
      color: var(--text-white);
      font-family: var(--font-stack);
      line-height: 1.7;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    a { color: var(--primary); text-decoration: none; transition: all 0.25s ease; }
    a:hover, a:focus { color: var(--primary-hover); }
    img { max-width: 100%; height: auto; display: block; }
    ul { list-style: none; margin: 0; padding: 0; }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(13, 17, 23, 0.88);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-line);
    }
    .nav-top-row {
      padding: 14px 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }
    .brand-logo {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--text-white);
      display: flex;
      align-items: center;
      gap: 10px;
      letter-spacing: -0.5px;
      white-space: nowrap;
    }
    .brand-logo-badge {
      background: var(--primary);
      color: #000;
      font-size: 0.75rem;
      font-weight: 900;
      padding: 2px 7px;
      border-radius: 4px;
      text-transform: uppercase;
    }
    .header-search {
      flex: 1;
      max-width: 580px;
      position: relative;
    }
    .header-search input {
      background: #090D12;
      border: 1px solid var(--border-line);
      border-radius: 999px;
      padding: 10px 110px 10px 42px;
      color: var(--text-white);
      height: 44px;
      margin-bottom: 0;
      font-size: 0.9rem;
    }
    .header-search input:focus {
      background: #0d131c;
      border-color: var(--primary);
      box-shadow: 0 0 10px rgba(0, 245, 155, 0.25);
    }
    .header-search-icon {
      position: absolute;
      left: 14px;
      top: 50%;
      transform: translateY(-50%);
      width: 18px;
      height: 18px;
      fill: var(--text-gray);
    }
    .header-search button {
      position: absolute;
      right: 4px;
      top: 4px;
      height: 36px;
      background: var(--primary);
      color: #000;
      border: none;
      font-weight: 700;
      font-size: 0.85rem;
      padding: 0 16px;
      border-radius: 999px;
      cursor: pointer;
      transition: background 0.2s ease;
    }
    .header-search button:hover { background: var(--primary-hover); }
    .header-secure-pill {
      display: flex;
      align-items: center;
      gap: 6px;
      font-size: 0.82rem;
      color: var(--primary);
      background: rgba(0, 245, 155, 0.1);
      padding: 6px 14px;
      border-radius: 999px;
      border: 1px solid rgba(0, 245, 155, 0.25);
      white-space: nowrap;
    }
    .nav-bottom-row {
      border-top: 1px solid var(--border-line);
      overflow-x: auto;
      white-space: nowrap;
      -webkit-overflow-scrolling: touch;
    }
    .nav-anchor-list {
      display: flex;
      gap: 28px;
      padding: 8px 0;
    }
    .nav-anchor-list a {
      color: var(--text-gray);
      font-size: 0.92rem;
      font-weight: 600;
      position: relative;
      padding: 6px 0;
    }
    .nav-anchor-list a:hover {
      color: var(--text-white);
    }
    .nav-anchor-list a:hover::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }

    /* 板块通用间距与标题 */
    .section-block {
      padding: 85px 0;
      position: relative;
    }
    .section-block.alt-bg {
      background: var(--bg-surface);
    }
    .section-block.deep-bg {
      background: var(--bg-deep);
    }
    .section-header {
      margin-bottom: 48px;
    }
    .section-header.text-center {
      text-align: center;
    }
    .section-tag {
      color: var(--primary);
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      margin-bottom: 8px;
      display: inline-block;
      background: rgba(0, 245, 155, 0.08);
      padding: 4px 12px;
      border-radius: 4px;
    }
    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-white);
      letter-spacing: -0.5px;
      margin-bottom: 14px;
    }
    .section-desc {
      color: var(--text-gray);
      font-size: 1.05rem;
      max-width: 760px;
      line-height: 1.75;
      margin: 0 auto;
    }

    /* 按钮规范 */
    .btn-action {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-weight: 700;
      border-radius: 8px;
      padding: 13px 28px;
      font-size: 1rem;
      cursor: pointer;
      transition: all 0.25s ease;
      border: 1px solid transparent;
      min-height: 48px;
    }
    .btn-action-primary {
      background: var(--primary);
      color: #000;
      box-shadow: 0 4px 16px rgba(0, 245, 155, 0.35);
    }
    .btn-action-primary:hover {
      background: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(0, 245, 155, 0.5);
      color: #000;
    }
    .btn-action-outline {
      background: transparent;
      color: var(--text-white);
      border-color: rgba(255, 255, 255, 0.2);
    }
    .btn-action-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: rgba(0, 245, 155, 0.05);
    }

    /* 卡片与容器基础 */
    .app-card {
      background: var(--bg-card);
      border: 1px solid var(--border-line);
      border-radius: 12px;
      padding: 24px;
      transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
      box-shadow: var(--card-shadow);
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .app-card:hover {
      transform: translateY(-4px);
      border-color: rgba(0, 245, 155, 0.35);
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.6);
    }

    /* 板块一：Hero 首屏 */
    .hero-section {
      padding: 80px 0 90px;
      background: radial-gradient(circle at 80% 20%, rgba(138, 43, 226, 0.15) 0%, transparent 60%),
                  radial-gradient(circle at 10% 80%, rgba(0, 245, 155, 0.1) 0%, transparent 50%),
                  var(--bg-dark);
      border-bottom: 1px solid var(--border-line);
    }
    .hero-h1 {
      font-size: 2.85rem;
      line-height: 1.25;
      font-weight: 900;
      color: var(--text-white);
      margin-bottom: 22px;
      letter-spacing: -1px;
    }
    .hero-h1 span {
      color: var(--primary);
      text-shadow: 0 0 24px rgba(0, 245, 155, 0.4);
    }
    .hero-lead {
      font-size: 1.15rem;
      color: var(--text-gray);
      margin-bottom: 32px;
      line-height: 1.8;
      max-width: 640px;
    }
    .hero-badge-row {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 36px;
    }
    .hero-pill {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-line);
      padding: 6px 14px;
      border-radius: 6px;
      font-size: 0.85rem;
      color: var(--text-gray);
    }
    .hero-pill strong { color: var(--text-white); }
    .hero-cta-group {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 32px;
    }
    .hero-trust-bar {
      display: flex;
      align-items: center;
      gap: 20px;
      padding-top: 24px;
      border-top: 1px solid var(--border-line);
      font-size: 0.85rem;
      color: var(--text-muted);
    }
    .hero-preview-box {
      border-radius: 16px;
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.12);
      box-shadow: 0 16px 48px rgba(0, 0, 0, 0.7);
      background: var(--bg-card);
      position: relative;
    }

    /* 板块二：数据指标带 */
    .metrics-section {
      background: #0B0E14;
      border-bottom: 1px solid var(--border-line);
      padding: 40px 0;
    }
    .metric-item {
      text-align: center;
      padding: 10px;
    }
    .metric-num {
      font-size: 2.5rem;
      font-weight: 900;
      color: var(--primary);
      font-family: monospace, sans-serif;
      line-height: 1.1;
      margin-bottom: 6px;
    }
    .metric-label {
      color: var(--text-gray);
      font-size: 0.9rem;
      font-weight: 600;
    }

    /* 板块四：六维硬核优势 */
    .advantage-icon {
      width: 48px;
      height: 48px;
      background: rgba(0, 245, 155, 0.1);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 18px;
    }
    .advantage-icon svg {
      width: 24px;
      height: 24px;
      fill: var(--primary);
    }
    .advantage-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-white);
    }
    .advantage-card p {
      font-size: 0.92rem;
      color: var(--text-gray);
      line-height: 1.65;
      margin-bottom: 0;
    }

    /* 板块五：精选游戏卡片 */
    .game-thumb-wrapper {
      border-radius: 8px;
      overflow: hidden;
      margin-bottom: 16px;
      position: relative;
      aspect-ratio: 16/9;
    }
    .game-thumb-wrapper img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .app-card:hover .game-thumb-wrapper img {
      transform: scale(1.05);
    }
    .game-meta-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 8px;
    }
    .game-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-white);
    }
    .game-tag {
      font-size: 0.75rem;
      padding: 2px 8px;
      border-radius: 4px;
      background: rgba(138, 43, 226, 0.2);
      color: #b977ff;
      border: 1px solid rgba(138, 43, 226, 0.4);
    }
    .game-progress-bar {
      height: 6px;
      background: #10141a;
      border-radius: 999px;
      overflow: hidden;
      margin: 12px 0 16px;
    }
    .game-progress-fill {
      height: 100%;
      background: var(--primary);
      width: 85%;
    }

    /* 板块七：多端运行演示容器 */
    .multi-device-box {
      background: var(--bg-card);
      border: 1px solid var(--border-line);
      border-radius: 16px;
      padding: 36px;
      box-shadow: var(--card-shadow);
    }

    /* 板块八：玩家评价卡片 */
    .user-avatar {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: #2a3240;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      color: var(--primary);
      border: 2px solid var(--primary);
    }
    .rating-stars {
      color: #ffb800;
      font-size: 0.85rem;
      margin-bottom: 8px;
    }

    /* 板块九：横向对比表格 */
    .table-container {
      background: var(--bg-card);
      border: 1px solid var(--border-line);
      border-radius: 12px;
      overflow-x: auto;
    }
    .custom-compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      margin-bottom: 0;
      color: var(--text-white);
    }
    .custom-compare-table th, .custom-compare-table td {
      padding: 18px 24px;
      border-bottom: 1px solid var(--border-line);
    }
    .custom-compare-table thead th {
      background: #181d24;
      font-weight: 800;
      font-size: 1rem;
    }
    .custom-compare-table .highlight-col {
      background: rgba(0, 245, 155, 0.04);
      color: var(--primary);
      font-weight: 700;
    }

    /* 板块十一：常见问题 FAQ */
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-line);
      border-radius: 8px;
      margin-bottom: 14px;
      overflow: hidden;
    }
    .faq-question {
      padding: 20px 24px;
      font-weight: 700;
      font-size: 1.05rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: var(--text-white);
    }
    .faq-answer {
      padding: 0 24px 20px 24px;
      color: var(--text-gray);
      font-size: 0.95rem;
      line-height: 1.7;
    }

    /* 底部收口与悬浮条 */
    .bottom-cta-banner {
      background: linear-gradient(135deg, rgba(138, 43, 226, 0.25) 0%, rgba(0, 245, 155, 0.15) 100%), var(--bg-surface);
      border: 1px solid rgba(0, 245, 155, 0.3);
      border-radius: 16px;
      padding: 50px 30px;
      text-align: center;
    }
    .mobile-float-bar {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: rgba(13, 17, 23, 0.95);
      border-top: 1px solid var(--border-line);
      padding: 10px 16px;
      z-index: 999;
      backdrop-filter: blur(10px);
    }
    .mobile-float-inner {
      display: flex;
      gap: 12px;
      align-items: center;
    }

    /* 页脚 */
    .site-footer {
      background: var(--bg-deep);
      border-top: 1px solid var(--border-line);
      padding: 60px 0 30px;
      color: var(--text-gray);
      font-size: 0.9rem;
    }
    .footer-col h4 {
      color: var(--text-white);
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .footer-col ul li {
      margin-bottom: 10px;
    }
    .footer-col ul li a {
      color: var(--text-gray);
      font-size: 0.88rem;
    }
    .footer-col ul li a:hover {
      color: var(--primary);
    }
    .footer-bottom {
      margin-top: 45px;
      padding-top: 25px;
      border-top: 1px solid var(--border-line);
      text-align: center;
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    /* 响应式调整 */
    @media (max-width: 1024px) {
      .hero-h1 { font-size: 2.3rem; }
    }
    @media (max-width: 768px) {
      .section-block { padding: 50px 0; }
      .header-search { display: none; }
      .hero-h1 { font-size: 1.9rem; }
      .mobile-float-bar { display: block; }
      body { padding-bottom: 64px; }
      .hero-preview-box { margin-top: 30px; }
      .custom-compare-table th, .custom-compare-table td { padding: 12px 14px; font-size: 0.85rem; }
    }