/* roulang page: index */
@import url('/assets/css/vendor/1ecd1de215-css2.css');
    :root {
      --primary: #00E5FF;
      --primary-soft: rgba(0,229,255,0.15);
      --secondary: #0A0E27;
      --accent: #FF3366;
      --text-primary: #FFFFFF;
      --text-secondary: #B0C4DE;
      --text-muted: #7B8FA1;
      --glass-bg: rgba(10,14,39,0.6);
      --glass-border: rgba(0,229,255,0.2);
      --glow: 0 0 20px rgba(0,229,255,0.4);
      --shadow-card: 0 4px 20px rgba(0,0,0,0.3);
      --radius-card: 16px;
      --radius-btn: 12px;
      --transition: 0.3s ease;
    }
    * {
      box-sizing: border-box;
    }
    body {
      font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
      background-color: #0A0E27;
      color: var(--text-secondary);
      line-height: 1.7;
      margin: 0;
      -webkit-font-smoothing: antialiased;
    }
    h1, h2, h3, h4 {
      color: var(--text-primary);
      letter-spacing: -0.3px;
    }
    h1 {
      font-size: 48px;
      line-height: 1.2;
      font-weight: 800;
    }
    h2 {
      font-size: 36px;
      line-height: 1.3;
      font-weight: 700;
    }
    h3 {
      font-size: 22px;
      line-height: 1.4;
      font-weight: 600;
    }
    .text-accent {
      color: var(--accent);
    }
    .container {
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }
    /* 导航 */
    .navbar {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 50;
      background: rgba(10,14,39,0.7);
      backdrop-filter: blur(15px);
      border-bottom: 1px solid rgba(0,229,255,0.15);
      transition: var(--transition);
    }
    .nav-link {
      color: var(--text-secondary);
      font-weight: 500;
      transition: color 0.2s;
      position: relative;
      padding-bottom: 4px;
    }
    .nav-link:hover, .nav-link.active {
      color: #00E5FF;
    }
    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: #00E5FF;
      box-shadow: 0 0 8px #00E5FF;
      transition: width 0.25s ease;
    }
    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }
    /* 汉堡菜单 (纯CSS模拟) */
    #menu-toggle {
      display: none;
    }
    .menu-icon {
      display: none;
      cursor: pointer;
      flex-direction: column;
      gap: 5px;
    }
    .menu-icon span {
      display: block;
      width: 25px;
      height: 3px;
      background: #B0C4DE;
      border-radius: 2px;
      transition: 0.3s;
    }
    @media (max-width: 767px) {
      .menu-icon {
        display: flex;
      }
      .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(10,14,39,0.9);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        gap: 20px;
        padding: 24px 0;
        display: none;
        border-bottom: 1px solid rgba(0,229,255,0.2);
      }
      #menu-toggle:checked ~ .nav-menu {
        display: flex;
      }
      .nav-link {
        font-size: 18px;
      }
    }
    /* 玻璃拟态卡片 */
    .glass-card {
      background: var(--glass-bg);
      backdrop-filter: blur(20px);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }
    .glass-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 8px 40px rgba(0,229,255,0.3);
      border-color: rgba(0,229,255,0.6);
    }
    /* 按钮 */
    .btn-primary {
      background: #FF3366;
      color: white;
      font-weight: 600;
      border-radius: 12px;
      padding: 14px 32px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 0 20px rgba(255,51,102,0.4);
      transition: all 0.25s;
      letter-spacing: 0.5px;
      border: none;
      cursor: pointer;
    }
    .btn-primary:hover {
      box-shadow: 0 0 30px rgba(255,51,102,0.7);
      transform: scale(1.05);
    }
    .btn-outline {
      background: transparent;
      border: 1px solid #00E5FF;
      color: #00E5FF;
      font-weight: 600;
      border-radius: 12px;
      padding: 14px 32px;
      transition: 0.25s;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }
    .btn-outline:hover {
      background: rgba(0,229,255,0.1);
    }
    .btn-ghost {
      background: transparent;
      border: 1px solid white;
      color: white;
    }
    .btn-ghost:hover {
      background: white;
      color: #0A0E27;
    }
    /* 脉冲动画 */
    @keyframes pulse-glow {
      0% { box-shadow: 0 0 15px rgba(255,51,102,0.4); }
      50% { box-shadow: 0 0 30px rgba(255,51,102,0.8); }
      100% { box-shadow: 0 0 15px rgba(255,51,102,0.4); }
    }
    .animate-pulse-glow {
      animation: pulse-glow 2s infinite;
    }
    /* 瀑布流 */
    .masonry {
      column-count: 3;
      column-gap: 24px;
    }
    .masonry-item {
      break-inside: avoid;
      margin-bottom: 24px;
    }
    @media (max-width: 1023px) {
      .masonry {
        column-count: 2;
      }
      h1 { font-size: 40px; }
      h2 { font-size: 30px; }
    }
    @media (max-width: 767px) {
      .masonry {
        column-count: 1;
      }
      h1 { font-size: 34px; }
      h2 { font-size: 28px; }
      .container {
        padding-left: 20px;
        padding-right: 20px;
      }
      .btn-primary, .btn-outline {
        padding: 12px 24px;
      }
      .hero-image {
        height: 250px;
      }
    }
    details summary {
      list-style: none;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    details summary::-webkit-details-marker {
      display: none;
    }
    details[open] .faq-answer {
      animation: fadeIn 0.3s ease;
    }
    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(-5px); }
      to { opacity: 1; transform: translateY(0); }
    }
    .table-scroll {
      overflow-x: auto;
    }
    .highlight-col {
      border: 2px solid #FF3366;
      box-shadow: 0 0 25px rgba(255,51,102,0.3);
      position: relative;
    }
    .badge-recommend {
      position: absolute;
      top: -14px;
      right: 12px;
      background: #FF3366;
      color: white;
      font-size: 12px;
      padding: 4px 12px;
      border-radius: 20px;
      font-weight: bold;
    }