/* roulang page: index */
:root {
      --primary: #FF2A6D;
      --secondary: #05D9E8;
      --gold: #FFB800;
      --bg-dark: #0B0D12;
      --card-dark: #141721;
      --highlight-dark: #1C2030;
      --border-color: rgba(255, 255, 255, 0.08);
    }
    * {
      box-sizing: border-box;
      scroll-behavior: smooth;
    }
    body {
      background-color: var(--bg-dark);
      color: #E2E8F0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
    }
    .no-scrollbar::-webkit-scrollbar {
      display: none;
    }
    .no-scrollbar {
      -ms-overflow-style: none;
      scrollbar-width: none;
    }
    .custom-card {
      background-color: var(--card-dark);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .custom-card:hover {
      border-color: rgba(255, 42, 109, 0.6);
      box-shadow: 0 0 20px rgba(255, 42, 109, 0.15);
      transform: translateY(-2px);
    }
    .btn-primary {
      background-color: var(--primary);
      color: #FFFFFF;
      font-weight: 600;
      padding: 0.75rem 1.5rem;
      border-radius: 8px;
      transition: all 0.25s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      box-shadow: 0 4px 14px rgba(255, 42, 109, 0.3);
    }
    .btn-primary:hover {
      background-color: #ff437e;
      box-shadow: 0 0 20px rgba(255, 42, 109, 0.5);
    }
    .btn-secondary {
      background-color: rgba(255, 255, 255, 0.06);
      color: #FFFFFF;
      border: 1px solid rgba(255, 255, 255, 0.15);
      padding: 0.75rem 1.5rem;
      border-radius: 8px;
      transition: all 0.25s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
    }
    .btn-secondary:hover {
      background-color: rgba(255, 255, 255, 0.12);
      border-color: var(--secondary);
      color: var(--secondary);
    }
    .badge-pink {
      background: rgba(255, 42, 109, 0.15);
      color: #FF2A6D;
      border: 1px solid rgba(255, 42, 109, 0.3);
    }
    .badge-cyan {
      background: rgba(5, 217, 232, 0.15);
      color: #05D9E8;
      border: 1px solid rgba(5, 217, 232, 0.3);
    }
    .tab-content {
      display: none;
    }
    .tab-content.active {
      display: block;
      animation: fadeIn 0.3s ease-in-out;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease-out, opacity 0.25s ease;
      opacity: 0;
    }
    .faq-item.open .faq-answer {
      max-height: 240px;
      opacity: 1;
    }
    .faq-item.open .faq-icon {
      transform: rotate(45deg);
    }
    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(6px); }
      to { opacity: 1; transform: translateY(0); }
    }

/* roulang page: category1 */
:root {
      --primary: #FF2A6D;
      --secondary: #05D9E8;
      --gold: #FFB800;
      --bg-dark: #0B0D12;
      --card-dark: #141721;
      --highlight-dark: #1C2030;
      --border-color: rgba(255, 255, 255, 0.08);
    }
    body {
      background-color: var(--bg-dark);
      color: #E2E8F0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
    }
    .custom-card {
      background-color: var(--card-dark);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .custom-card:hover {
      border-color: rgba(255, 42, 109, 0.6);
      box-shadow: 0 0 20px rgba(255, 42, 109, 0.15);
      transform: translateY(-2px);
    }
    .btn-primary {
      background-color: var(--primary);
      color: #FFFFFF;
      font-weight: 600;
      padding: 0.75rem 1.5rem;
      border-radius: 8px;
      transition: all 0.25s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      box-shadow: 0 4px 14px rgba(255, 42, 109, 0.3);
    }
    .btn-primary:hover {
      background-color: #ff437e;
      box-shadow: 0 0 20px rgba(255, 42, 109, 0.5);
    }
    .btn-secondary {
      background-color: rgba(255, 255, 255, 0.06);
      color: #FFFFFF;
      border: 1px solid rgba(255, 255, 255, 0.15);
      padding: 0.75rem 1.5rem;
      border-radius: 8px;
      transition: all 0.25s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
    }
    .btn-secondary:hover {
      background-color: rgba(255, 255, 255, 0.12);
      border-color: var(--secondary);
      color: var(--secondary);
    }
    .badge-pink {
      background: rgba(255, 42, 109, 0.15);
      color: #FF2A6D;
      border: 1px solid rgba(255, 42, 109, 0.3);
    }
    .badge-cyan {
      background: rgba(5, 217, 232, 0.15);
      color: #05D9E8;
      border: 1px solid rgba(5, 217, 232, 0.3);
    }
    .badge-gold {
      background: rgba(255, 184, 0, 0.15);
      color: #FFB800;
      border: 1px solid rgba(255, 184, 0, 0.3);
    }
    .no-scrollbar::-webkit-scrollbar {
      display: none;
    }
    .no-scrollbar {
      -ms-overflow-style: none;
      scrollbar-width: none;
    }