/* roulang page: index */
@import url('/assets/css/vendor/7d0d260fcb-all.min.css');

    :root {
      --primary-deep: #0A0E27;
      --accent-cyan: #00F0FF;
      --accent-pink: #FF3CAC;
      --bg-dark: #060918;
      --card-bg: #0D1130;
      --card-hover: #161B3F;
      --text-primary: #E8ECFF;
      --text-secondary: #8A8FB8;
      --text-white: #FFFFFF;
      --border-cyan-dim: rgba(0, 240, 255, 0.15);
      --border-pink-glow: rgba(255, 60, 172, 0.35);
      --shadow-cyan: 0 4px 24px rgba(0, 240, 255, 0.08);
      --shadow-cyan-hover: 0 8px 40px rgba(0, 240, 255, 0.2);
      --radius-card: 12px;
      --radius-btn: 8px;
      --radius-hero-card: 20px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
      background-color: var(--bg-dark);
      color: var(--text-primary);
      line-height: 1.75;
      font-size: 1rem;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    .font-mono {
      font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    }

    .text-cyan {
      color: var(--accent-cyan);
    }
    .text-pink {
      color: var(--accent-pink);
    }
    .bg-cyan {
      background-color: var(--accent-cyan);
    }
    .bg-pink {
      background-color: var(--accent-pink);
    }
    .border-cyan-dim {
      border-color: var(--border-cyan-dim);
    }
    .shadow-cyan {
      box-shadow: var(--shadow-cyan);
    }
    .hover\:shadow-cyan-glow:hover {
      box-shadow: var(--shadow-cyan-hover);
    }

    .container {
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }

    /* 导航 */
    .navbar {
      background: rgba(6, 9, 24, 0.85);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(0, 240, 255, 0.2);
      transition: background 0.3s ease;
    }
    .navbar.scrolled {
      background: rgba(6, 9, 24, 0.96);
    }
    .nav-link {
      color: var(--text-secondary);
      transition: color 0.2s, text-shadow 0.2s;
      font-weight: 500;
    }
    .nav-link:hover {
      color: var(--accent-cyan);
      text-shadow: 0 0 8px rgba(0, 240, 255, 0.5);
    }

    /* 按钮系统 */
    .btn-primary {
      background-color: var(--accent-cyan);
      color: #0A0E27;
      font-weight: 700;
      border-radius: var(--radius-btn);
      padding: 0.75rem 1.8rem;
      transition: box-shadow 0.2s, background 0.2s;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      letter-spacing: 0.02em;
      border: none;
      cursor: pointer;
    }
    .btn-primary:hover {
      box-shadow: 0 0 20px rgba(0, 240, 255, 0.6);
    }
    .btn-secondary {
      background: transparent;
      border: 1px solid var(--accent-cyan);
      color: var(--accent-cyan);
      font-weight: 600;
      border-radius: var(--radius-btn);
      padding: 0.75rem 1.8rem;
      transition: background 0.2s, color 0.2s;
      display: inline-flex;
      align-items: center;
      justify-content: center;
    }
    .btn-secondary:hover {
      background: rgba(0, 240, 255, 0.08);
    }
    .btn-cta {
      background-color: var(--accent-pink);
      color: white;
      font-weight: 700;
      border-radius: var(--radius-btn);
      padding: 0.85rem 2.2rem;
      transition: background 0.2s, box-shadow 0.2s;
      box-shadow: 0 4px 14px rgba(255, 60, 172, 0.4);
      border: none;
      cursor: pointer;
    }
    .btn-cta:hover {
      background-color: #E7339A;
      box-shadow: 0 0 24px rgba(255, 60, 172, 0.7);
    }

    /* 卡片通用 */
    .card {
      background: linear-gradient(135deg, #0D1130 0%, #12173A 100%);
      border: 1px solid var(--border-cyan-dim);
      border-radius: var(--radius-card);
      transition: transform 0.2s, box-shadow 0.25s, border-color 0.2s;
    }
    .card:hover {
      border-color: rgba(0, 240, 255, 0.4);
      box-shadow: var(--shadow-cyan-hover);
      transform: translateY(-2px);
    }

    /* 数字跳动占位 */
    .count-up {
      font-family: 'JetBrains Mono', monospace;
      font-weight: 900;
      background: linear-gradient(180deg, #00F0FF 0%, #7B61FF 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    /* 方案对比高亮 */
    .highlight-col {
      border: 1px solid var(--border-pink-glow);
      box-shadow: 0 0 30px rgba(255, 60, 172, 0.25);
      transform: translateY(-8px);
      position: relative;
    }

    /* FAQ 手风琴 */
    .faq-item {
      border-bottom: 1px solid rgba(255,255,255,0.08);
      padding: 1.2rem 0;
      cursor: pointer;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.25s;
      color: var(--text-secondary);
    }
    .faq-item.active .faq-answer {
      max-height: 200px;
      padding-top: 0.8rem;
      padding-bottom: 0.5rem;
    }
    .faq-item.active .faq-question {
      color: var(--accent-cyan);
    }

    /* 横向滚动卡片 */
    .scroll-container {
      display: flex;
      gap: 1.5rem;
      overflow-x: auto;
      scroll-snap-type: x mandatory;
      padding-bottom: 1rem;
    }
    .scroll-card {
      flex: 0 0 calc(33.333% - 1rem);
      min-width: 280px;
      scroll-snap-align: start;
    }

    @media (max-width: 1024px) {
      .scroll-card {
        flex: 0 0 calc(50% - 1rem);
      }
    }
    @media (max-width: 640px) {
      .scroll-card {
        flex: 0 0 82%;
      }
    }