/* roulang page: index */
@import url('/assets/css/vendor/1ecd1de215-css2.css');

    :root {
      --bg-deep: #121212;
      --cyan-electric: #00E5FF;
      --amber-accent: #FFAB00;
      --gray-light: #E0E0E0;
      --gray-mid: #BDBDBD;
      --border-subtle: rgba(255,255,255,0.1);
      --card-bg: rgba(255,255,255,0.05);
      --shadow-cyan: 0 0 15px rgba(0,229,255,0.15);
      --shadow-amber: 0 0 20px rgba(255,171,0,0.25);
      --radius-lg: 0.5rem;
    }

    * {
      box-sizing: border-box;
    }

    body {
      font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
      background-color: var(--bg-deep);
      color: var(--gray-mid);
      margin: 0;
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

    /* 网格线装饰背景 */
    .bg-grid {
      background-image: 
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
      background-size: 40px 40px;
      background-position: center center;
    }

    /* 暗色磨砂金属卡片 */
    .card-metal {
      background: var(--card-bg);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-cyan);
      transition: all 0.3s ease;
    }
    .card-metal:hover {
      border-color: var(--cyan-electric);
      box-shadow: 0 0 25px rgba(0,229,255,0.25);
      transform: translateY(-2px);
    }

    /* 发光按钮主样式 */
    .btn-glow {
      background: var(--cyan-electric);
      color: #121212;
      font-weight: 600;
      padding: 0.75rem 2rem;
      border-radius: 2rem;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      transition: all 0.3s ease;
      box-shadow: 0 0 10px rgba(0,229,255,0.3);
      border: none;
      cursor: pointer;
      letter-spacing: 0.5px;
    }
    .btn-glow:hover {
      box-shadow: 0 0 30px rgba(0,229,255,0.7);
      transform: translateY(-2px);
      color: #121212;
    }
    .btn-outline-glow {
      background: transparent;
      border: 1px solid var(--cyan-electric);
      color: var(--cyan-electric);
      font-weight: 600;
      padding: 0.75rem 2rem;
      border-radius: 2rem;
      transition: all 0.3s ease;
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
    }
    .btn-outline-glow:hover {
      background: var(--cyan-electric);
      color: #121212;
      box-shadow: 0 0 25px rgba(0,229,255,0.5);
      transform: translateY(-2px);
    }
    .btn-amber {
      background: var(--amber-accent);
      color: #121212;
      font-weight: 700;
      padding: 0.85rem 2.5rem;
      border-radius: 2rem;
      box-shadow: 0 0 18px rgba(255,171,0,0.4);
      transition: all 0.3s ease;
      border: none;
      cursor: pointer;
      letter-spacing: 0.5px;
    }
    .btn-amber:hover {
      box-shadow: 0 0 35px rgba(255,171,0,0.8);
      transform: scale(1.02);
    }

    /* 导航毛玻璃 */
    .nav-glass {
      background: rgba(18,18,18,0.8);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }

    .nav-link {
      color: #BDBDBD;
      transition: color 0.2s;
      position: relative;
      font-weight: 500;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--cyan-electric);
    }
    .nav-link::after {
      content: '';
      position: absolute;
      bottom: -6px;
      left: 0;
      width: 0%;
      height: 2px;
      background: var(--cyan-electric);
      transition: width 0.25s ease;
    }
    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }

    /* 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: 1.25rem 0;
      font-weight: 600;
      color: #E0E0E0;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease;
      color: #BDBDBD;
    }
    .faq-item.active .faq-answer {
      max-height: 200px;
      padding-bottom: 1rem;
    }

    /* 输入框 */
    .input-field {
      background: rgba(255,255,255,0.05);
      border: none;
      border-bottom: 2px solid #424242;
      padding: 0.8rem 0.25rem;
      width: 100%;
      color: white;
      transition: border-color 0.2s;
      outline: none;
      font-size: 1rem;
    }
    .input-field:focus {
      border-bottom-color: var(--cyan-electric);
      box-shadow: 0 2px 8px rgba(0,229,255,0.2);
    }

    /* 指标数字动画 */
    @keyframes softPulse {
      0% { text-shadow: 0 0 5px rgba(255,171,0,0.3); }
      50% { text-shadow: 0 0 18px rgba(255,171,0,0.7); }
      100% { text-shadow: 0 0 5px rgba(255,171,0,0.3); }
    }
    .metric-number {
      animation: softPulse 2.5s infinite;
    }

    /* 频道滚动隐藏滚动条 */
    .channel-scroll::-webkit-scrollbar { height: 0; }
    .channel-scroll { -ms-overflow-style: none; scrollbar-width: none; }