/* roulang page: index */
@import url('/assets/css/vendor/0b67347532-css2.css');
    
    :root {
      --deep-blue: #0A0E27;
      --electric-purple: #7C3AED;
      --cyan-light: #00E5FF;
      --surface-glass: rgba(255,255,255,0.05);
      --text-primary: #FFFFFF;
      --text-body: #B0B8D0;
      --text-highlight: #E0E4F0;
      --border-dim: rgba(255,255,255,0.08);
      --border-hover: rgba(124,58,237,0.6);
      --glow-purple: 0 0 24px rgba(124,58,237,0.5);
      --glow-cyan: 0 0 20px rgba(0,229,255,0.3);
      --card-shadow: 0 8px 32px rgba(0,0,0,0.4);
      --radius-card: 16px;
      --radius-btn: 8px;
    }

    * {
      box-sizing: border-box;
    }

    body {
      font-family: 'Inter', 'PingFang SC', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
      background-color: var(--deep-blue);
      color: var(--text-body);
      margin: 0;
      line-height: 1.7;
      font-weight: 400;
      -webkit-font-smoothing: antialiased;
    }

    /* 自定义滚动条 */
    ::-webkit-scrollbar {
      width: 6px;
      height: 6px;
    }
    ::-webkit-scrollbar-track {
      background: #0A0E27;
    }
    ::-webkit-scrollbar-thumb {
      background: #7C3AED;
      border-radius: 3px;
    }

    /* 玻璃拟态卡片基础 */
    .glass-card {
      background: rgba(255,255,255,0.05);
      backdrop-filter: blur(16px);
      border: 1px solid var(--border-dim);
      border-radius: var(--radius-card);
      box-shadow: var(--card-shadow);
      transition: all 0.3s ease;
    }
    .glass-card:hover {
      border-color: var(--border-hover);
      transform: translateY(-4px);
      box-shadow: 0 12px 40px rgba(0,0,0,0.6);
    }

    /* 发光按钮 */
    .btn-glow {
      background: var(--electric-purple);
      color: #FFF;
      border-radius: var(--radius-btn);
      padding: 14px 32px;
      font-weight: 600;
      box-shadow: var(--glow-purple);
      transition: all 0.3s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border: none;
      cursor: pointer;
    }
    .btn-glow:hover {
      background: #8B5CF6;
      box-shadow: 0 0 40px rgba(124,58,237,0.8);
      transform: scale(1.02);
    }

    .btn-ghost {
      border: 1px solid rgba(255,255,255,0.3);
      background: transparent;
      color: #FFF;
      border-radius: var(--radius-btn);
      padding: 14px 32px;
      font-weight: 500;
      transition: all 0.3s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
    }
    .btn-ghost:hover {
      border-color: var(--cyan-light);
      color: var(--cyan-light);
    }

    /* 导航 */
    .nav-blur {
      background: rgba(10,14,39,0.7);
      backdrop-filter: blur(20px);
      border-bottom: 1px solid transparent;
      transition: background 0.3s, border-color 0.3s;
    }
    .nav-scrolled {
      background: rgba(10,14,39,0.9);
      border-bottom: 1px solid rgba(255,255,255,0.06);
      backdrop-filter: blur(24px);
    }

    /* 数字发光 */
    .glow-number {
      text-shadow: 0 0 30px rgba(124,58,237,0.7), 0 0 60px rgba(0,229,255,0.3);
      font-weight: 700;
      font-feature-settings: "tnum";
    }

    /* 背景渐变 Hero */
    .hero-bg {
      background: radial-gradient(circle at 50% 30%, #1A1040 0%, #0A0E27 70%);
    }

    /* 动画 */
    .fade-up {
      opacity: 0;
      transform: translateY(20px);
      transition: opacity 0.6s ease, transform 0.6s ease;
    }
    .fade-up.visible {
      opacity: 1;
      transform: translateY(0);
    }

    /* 手风琴 */
    .faq-item {
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .faq-question {
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 0;
      font-weight: 600;
      color: #FFFFFF;
      transition: color 0.2s;
    }
    .faq-question:hover {
      color: var(--cyan-light);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding 0.4s ease;
      padding-left: 0px;
      color: var(--text-body);
    }
    .faq-item.active .faq-answer {
      max-height: 200px;
      padding: 0 0 16px 0;
    }
    .faq-item.active .faq-question {
      color: #FFFFFF;
    }
    .faq-icon {
      transition: transform 0.3s;
      color: var(--cyan-light);
      font-size: 24px;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }
    .faq-item.active {
      border-left: 2px solid var(--electric-purple);
      padding-left: 16px;
    }

    /* 横向滚动隐藏滚动条 */
    .scroll-container {
      scrollbar-width: none;
      -ms-overflow-style: none;
    }
    .scroll-container::-webkit-scrollbar {
      display: none;
    }

    @media (max-width: 768px) {
      .glass-card {
        backdrop-filter: none;
        background: rgba(255,255,255,0.08);
      }
      .btn-glow, .btn-ghost {
        padding: 12px 24px;
        font-size: 15px;
      }
    }

    /* 移动端汉堡菜单 */
    .mobile-menu {
      display: none;
      position: fixed;
      top: 64px;
      left: 0;
      width: 100%;
      height: calc(100vh - 64px);
      background: rgba(10,14,39,0.98);
      backdrop-filter: blur(20px);
      flex-direction: column;
      padding: 32px;
      z-index: 50;
    }
    .mobile-menu.open {
      display: flex;
    }
    @media (min-width: 769px) {
      .mobile-menu {
        display: none !important;
      }
    }