/* roulang page: index */
:root {
            --color-primary: #FF5500;
            --color-secondary: #0F1115;
            --color-text-main: #111827;
            --color-text-muted: #4B5563;
            --color-bg-light: #F7F8FA;
            --color-border: #E5E7EB;
        }
        * { box-sizing: border-box; }
        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            color: var(--color-text-main);
            background-color: #FFFFFF;
            overflow-x: hidden;
            letter-spacing: -0.01em;
        }
        .text-balance { text-wrap: balance; }
        .hero-overlay {
            background: linear-gradient(180deg, rgba(15, 17, 21, 0.78) 0%, rgba(15, 17, 21, 0.94) 100%);
        }
        .swiss-card {
            border: 1px solid var(--color-border);
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }
        .swiss-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 32px -4px rgba(0, 0, 0, 0.08);
            border-color: #D1D5DB;
        }
        .dark-card {
            background-color: #161920;
            border: 1px solid #262A35;
            transition: all 0.25s ease;
        }
        .dark-card:hover {
            border-color: #FF5500;
            transform: translateY(-3px);
        }
        .faq-item[open] .faq-icon {
            transform: rotate(45deg);
        }
        .badge-pulse {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: #00E575;
            box-shadow: 0 0 0 0 rgba(0, 229, 117, 0.7);
            animation: pulse-ring 2s infinite;
        }
        @keyframes pulse-ring {
            0% { box-shadow: 0 0 0 0 rgba(0, 229, 117, 0.7); }
            70% { box-shadow: 0 0 0 8px rgba(0, 229, 117, 0); }
            100% { box-shadow: 0 0 0 0 rgba(0, 229, 117, 0); }
        }
        html { scroll-behavior: smooth; }
        ::selection { background-color: #FF5500; color: #FFFFFF; }

/* roulang page: category1 */
:root {
      --color-primary: #FF5500;
      --color-secondary: #0F1115;
      --color-text-main: #111827;
      --color-text-muted: #4B5563;
      --color-bg-light: #F7F8FA;
      --color-border: #E5E7EB;
    }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      color: var(--color-text-main);
      background-color: #FFFFFF;
      overflow-x: hidden;
      letter-spacing: -0.01em;
    }
    .text-balance { text-wrap: balance; }
    .swiss-card {
      border: 1px solid var(--color-border);
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    }
    .swiss-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 32px -4px rgba(0, 0, 0, 0.08);
      border-color: #D1D5DB;
    }
    .dark-card {
      background-color: #161920;
      border: 1px solid #262A35;
      transition: all 0.25s ease;
    }
    .dark-card:hover {
      border-color: #FF5500;
      transform: translateY(-3px);
    }
    .badge-pulse {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: #00E575;
      box-shadow: 0 0 0 0 rgba(0, 229, 117, 0.7);
      animation: pulse-ring 2s infinite;
    }
    @keyframes pulse-ring {
      0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 229, 117, 0.7); }
      70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(0, 229, 117, 0); }
      100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 229, 117, 0); }
    }
    html { scroll-behavior: smooth; }
    .filter-tab.active {
      background-color: #111827;
      color: #FFFFFF;
      border-color: #111827;
    }