/* roulang page: index */
@import url('/assets/css/vendor/1ecd1de215-css2.css');
    :root {
      --primary: #A259FF;
      --primary-soft: rgba(162, 89, 255, 0.18);
      --accent: #00F0FF;
      --accent-soft: rgba(0, 240, 255, 0.12);
      --warm: #FF6B35;
      --bg: #0B0C10;
      --card: #1F1F2B;
      --card-border: rgba(162, 89, 255, 0.18);
      --text-light: #E0E0E0;
      --text-muted: #B0B0B8;
      --white: #FFFFFF;
      --radius-card: 16px;
      --radius-btn: 10px;
      --transition: 0.3s ease;
      --nav-height: 68px;
      --mobile-bottom-nav: 60px;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
      background-color: var(--bg);
      color: var(--text-light);
      line-height: 1.5;
      -webkit-font-smoothing: antialiased;
      padding-bottom: var(--mobile-bottom-nav);
    }
    @media (min-width: 768px) {
      body {
        padding-bottom: 0;
      }
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    a, button, input, textarea {
      font-family: inherit;
      outline: none;
    }
    input, textarea {
      background: var(--card);
      border: 1px solid rgba(162, 89, 255, 0.35);
      border-radius: 10px;
      padding: 14px 18px;
      color: var(--white);
      font-size: 16px;
      transition: var(--transition);
      width: 100%;
    }
    input::placeholder, textarea::placeholder {
      color: #8A8A9A;
      font-weight: 400;
    }
    input:focus, textarea:focus {
      border-color: var(--accent);
      box-shadow: 0 0 18px rgba(0, 240, 255, 0.3);
    }
    .container {
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }
    @media (min-width: 1024px) {
      .container {
        padding-left: 40px;
        padding-right: 40px;
      }
    }
    /* 导航桌面 */
    .desktop-nav {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: var(--nav-height);
      background: rgba(11, 12, 16, 0.92);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(0, 240, 255, 0.25);
      z-index: 50;
      align-items: center;
    }
    @media (min-width: 768px) {
      .desktop-nav {
        display: flex;
      }
    }
    .logo-text {
      font-weight: 800;
      font-size: 24px;
      letter-spacing: -0.5px;
      background: linear-gradient(135deg, #A259FF 0%, #00F0FF 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .nav-link {
      color: #C0C0CC;
      font-weight: 500;
      transition: color 0.2s;
      position: relative;
      padding-bottom: 6px;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--accent);
    }
    .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--accent);
      border-radius: 4px;
    }
    /* 移动底部导航 */
    .mobile-bottom-nav {
      display: flex;
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      height: var(--mobile-bottom-nav);
      background: #1A1A26;
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-top: 1px solid rgba(162, 89, 255, 0.4);
      z-index: 60;
      justify-content: space-around;
      align-items: center;
    }
    @media (min-width: 768px) {
      .mobile-bottom-nav {
        display: none;
      }
    }
    .mobile-tab {
      display: flex;
      flex-direction: column;
      align-items: center;
      color: #77778A;
      font-size: 11px;
      font-weight: 500;
      transition: color 0.2s;
    }
    .mobile-tab.active {
      color: var(--accent);
    }
    .mobile-tab svg {
      width: 24px;
      height: 24px;
      margin-bottom: 2px;
    }
    /* 发光文字 */
    .glow-text {
      text-shadow: 0 0 20px rgba(162, 89, 255, 0.5);
    }
    .btn-primary {
      background: linear-gradient(135deg, #A259FF 0%, #FF6B35 100%);
      color: white;
      font-weight: 600;
      border-radius: var(--radius-btn);
      padding: 14px 32px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      transition: all 0.25s;
      border: none;
      box-shadow: 0 4px 18px rgba(162, 89, 255, 0.35);
      letter-spacing: 0.3px;
    }
    .btn-primary:hover {
      filter: brightness(1.2);
      box-shadow: 0 0 28px rgba(162, 89, 255, 0.7);
      transform: translateY(-2px);
    }
    .btn-outline {
      background: transparent;
      border: 2px solid var(--accent);
      color: var(--accent);
      font-weight: 600;
      border-radius: var(--radius-btn);
      padding: 12px 30px;
      transition: all 0.25s;
    }
    .btn-outline:hover {
      background: rgba(0, 240, 255, 0.1);
      color: white;
    }
    .btn-ghost {
      background: transparent;
      border: 1px solid rgba(255,255,255,0.35);
      color: white;
      font-weight: 500;
      border-radius: var(--radius-btn);
      padding: 12px 30px;
      transition: all 0.25s;
    }
    .btn-ghost:hover {
      border-color: white;
      background: rgba(255,255,255,0.08);
    }
    .card {
      background: var(--card);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-card);
      padding: 28px 24px;
      transition: all 0.3s ease;
    }
    .card:hover {
      border-color: rgba(0, 240, 255, 0.45);
      transform: translateY(-6px);
      box-shadow: 0 12px 30px rgba(0, 240, 255, 0.08);
    }
    .accent-dot {
      width: 6px;
      height: 6px;
      background: var(--accent);
      border-radius: 50%;
      display: inline-block;
      margin-right: 12px;
    }
    .faq-item {
      border-bottom: 1px solid #2A2A38;
      padding: 18px 0;
      cursor: pointer;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease;
      color: #B0B0B8;
    }
    .faq-item.open .faq-answer {
      max-height: 180px;
    }