/* roulang page: index */
:root {
      --color-primary: #1d4ed8;
      --color-primary-dark: #1e3a8a;
      --color-accent: #f97316;
      --color-bg-light: #f8fafc;
      --color-text-main: #0f172a;
      --color-text-muted: #475569;
      --radius-card: 1.25rem;
      --shadow-soft: 0 10px 25px -5px rgba(15, 23, 42, 0.05), 0 8px 10px -6px rgba(15, 23, 42, 0.05);
      --shadow-hover: 0 20px 30px -10px rgba(29, 78, 216, 0.15);
    }
    
    html {
      scroll-behavior: smooth;
      font-family: Inter, system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
    }

    body {
      background-color: var(--color-bg-light);
      color: var(--color-text-main);
      overflow-x: hidden;
    }

    .badge-pill {
      display: inline-flex;
      align-items: center;
      padding: 0.35rem 0.85rem;
      font-size: 0.8125rem;
      font-weight: 600;
      border-radius: 9999px;
      letter-spacing: 0.025em;
    }

    .card-pro {
      background-color: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-soft);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .card-pro:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: #bfdbfe;
    }

    .dark-card-pro {
      background: linear-gradient(145deg, #1e293b, #0f172a);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-card);
      transition: all 0.3s ease;
    }

    .dark-card-pro:hover {
      border-color: rgba(249, 115, 22, 0.4);
      transform: translateY(-3px);
    }

    .btn-gradient-primary {
      background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
      transition: all 0.25s ease;
    }

    .btn-gradient-primary:hover {
      background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
      box-shadow: 0 8px 18px rgba(37, 99, 235, 0.35);
    }

    .btn-gradient-court {
      background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
      transition: all 0.25s ease;
    }

    .btn-gradient-court:hover {
      background: linear-gradient(135deg, #ea580c 0%, #c2410c 100%);
      box-shadow: 0 8px 18px rgba(234, 88, 12, 0.35);
    }

    /* 移动端菜单抽屉 */
    #mobileMenu {
      transition: max-height 0.35s ease-in-out, opacity 0.25s ease-in-out;
    }