/* roulang page: index */
:root {
      --primary: #FF7A38;
      --primary-hover: #e86726;
      --secondary: #1B5BFF;
      --secondary-dark: #0f41c4;
      --accent-green: #20C997;
      --accent-yellow: #FFB800;
      --bg-cream: #FFFBF8;
      --bg-light: #F6F9FC;
      --dark-navy: #0D1B3E;
      --text-main: #1E293B;
      --text-muted: #475569;
      --border-soft: #E2E8F0;
      --radius-box: 20px;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-cream);
      color: var(--text-main);
      overflow-x: hidden;
      letter-spacing: 0.015em;
      line-height: 1.75;
      scroll-behavior: smooth;
    }
    .badge-pill {
      display: inline-flex;
      align-items: center;
      padding: 0.35rem 0.95rem;
      border-radius: 9999px;
      font-size: 0.875rem;
      font-weight: 600;
    }
    .hero-coupon-card {
      background: linear-gradient(135deg, #ffffff 0%, #fff7f2 100%);
      border: 2px dashed #FF7A38;
      box-shadow: 0 20px 40px -15px rgba(255, 122, 56, 0.2);
    }
    .card-modern {
      background: #ffffff;
      border-radius: var(--radius-box);
      border: 1px solid rgba(226, 232, 240, 0.8);
      box-shadow: 0 10px 30px -8px rgba(27, 91, 255, 0.06);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .card-modern:hover {
      transform: translateY(-5px);
      box-shadow: 0 18px 36px -10px rgba(27, 91, 255, 0.14);
      border-color: rgba(255, 122, 56, 0.3);
    }
    .gradient-navy {
      background: linear-gradient(145deg, #0D1B3E 0%, #172A54 100%);
    }
    .btn-brand {
      background-color: var(--primary);
      color: #ffffff;
      font-weight: 600;
      border-radius: 9999px;
      transition: all 0.25s ease;
      box-shadow: 0 6px 18px -4px rgba(255, 122, 56, 0.4);
    }
    .btn-brand:hover {
      background-color: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 10px 22px -4px rgba(255, 122, 56, 0.5);
    }
    .btn-sub {
      background-color: #ffffff;
      color: var(--secondary);
      border: 2px solid var(--secondary);
      font-weight: 600;
      border-radius: 9999px;
      transition: all 0.25s ease;
    }
    .btn-sub:hover {
      background-color: var(--secondary);
      color: #ffffff;
    }
    details summary::-webkit-details-marker {
      display: none;
    }