/* roulang page: index */
:root {
      --bg-dark: #0B0D10;
      --card-dark: #12161C;
      --color-brand: #00FF87;
      --color-cyan: #00F0FF;
      --color-orange: #FF5E1E;
      --border-line: rgba(255, 255, 255, 0.08);
      --font-mono-num: 'Chakra Petch', 'Inter', system-ui, -apple-system, sans-serif;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      background-color: var(--bg-dark);
      color: #FFFFFF;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      overflow-x: hidden;
    }
    .num-display {
      font-family: var(--font-mono-num);
      font-feature-settings: "tnum";
    }
    .glass-nav {
      background: rgba(11, 13, 16, 0.88);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-line);
    }
    .card-glow {
      background: var(--card-dark);
      border: 1px solid var(--border-line);
      transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
    }
    .card-glow:hover {
      transform: translateY(-2px);
      border-color: rgba(0, 255, 135, 0.35);
      box-shadow: 0 10px 30px -10px rgba(0, 255, 135, 0.12);
    }
    .hero-bg {
      background-image: linear-gradient(180deg, rgba(11, 13, 16, 0.72) 0%, rgba(11, 13, 16, 0.98) 100%), url('/assets/images/599acb902ce9f557.jpg');
      background-size: cover;
      background-position: center 30%;
    }
    .pulse-dot {
      animation: pulseAnimation 2s infinite ease-in-out;
    }
    @keyframes pulseAnimation {
      0%, 100% { transform: scale(1); opacity: 1; }
      50% { transform: scale(1.35); opacity: 0.5; }
    }
    details[open] summary svg {
      transform: rotate(180deg);
    }
    .tab-btn.active {
      background-color: #00FF87;
      color: #0B0D10;
      font-weight: 700;
    }

/* roulang page: category1 */
:root {
      --bg-dark: #0B0D10;
      --card-dark: #12161C;
      --color-brand: #00FF87;
      --color-cyan: #00F0FF;
      --color-orange: #FF5E1E;
      --border-line: rgba(255, 255, 255, 0.08);
      --font-mono-num: 'Chakra Petch', 'Inter', system-ui, -apple-system, sans-serif;
    }
    body {
      background-color: var(--bg-dark);
      color: #FFFFFF;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      overflow-x: hidden;
    }
    .glass-nav {
      background: rgba(11, 13, 16, 0.88);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-line);
    }
    .card-glow {
      background: var(--card-dark);
      border: 1px solid var(--border-line);
      transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
    }
    .card-glow:hover {
      transform: translateY(-2px);
      border-color: rgba(0, 255, 135, 0.35);
      box-shadow: 0 10px 30px -10px rgba(0, 255, 135, 0.12);
    }
    .filter-btn.active {
      background-color: #00FF87;
      color: #0B0D10;
      font-weight: 700;
      border-color: #00FF87;
    }
    .hero-search-bg {
      background: radial-gradient(circle at 50% 20%, rgba(0, 240, 255, 0.08) 0%, rgba(11, 13, 16, 0.98) 75%), url('/assets/images/60aa874f666d2a69.jpg');
      background-size: cover;
      background-position: center;
    }
    details > summary {
      list-style: none;
    }
    details > summary::-webkit-details-marker {
      display: none;
    }
    .bottom-cta-bar {
      transform: translateY(120%);
      transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .bottom-cta-bar.show {
      transform: translateY(0);
    }