/* roulang page: index */
:root {
      --bg-base: #070b14;
      --primary: #0066ff;
      --accent: #00f0ff;
      --card-bg: rgba(15, 23, 42, 0.65);
      --border-glass: rgba(255, 255, 255, 0.12);
    }
    body {
      background-color: var(--bg-base);
      color: #f1f5f9;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
    }
    .glass-panel {
      background: var(--card-bg);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--border-glass);
    }
    .glass-panel:hover {
      border-color: rgba(0, 240, 255, 0.35);
      box-shadow: 0 0 25px rgba(0, 102, 255, 0.25);
    }
    .glow-btn {
      background: linear-gradient(135deg, #0066ff, #00d2ff);
      box-shadow: 0 0 20px rgba(0, 102, 255, 0.45);
      transition: all 0.3s ease;
    }
    .glow-btn:hover {
      box-shadow: 0 0 30px rgba(0, 240, 255, 0.7);
      transform: translateY(-2px);
    }
    .glow-border {
      position: relative;
    }
    .glow-border::after {
      content: '';
      position: absolute;
      inset: -1px;
      border-radius: inherit;
      padding: 1px;
      background: linear-gradient(135deg, rgba(0,240,255,0.4), rgba(121,40,202,0.4));
      -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
      -webkit-mask-composite: xor;
      mask-composite: exclude;
      pointer-events: none;
    }

/* roulang page: category1 */
:root {
      --bg-base: #070b14;
      --primary: #0066ff;
      --accent: #00f0ff;
      --card-bg: rgba(15, 23, 42, 0.65);
      --border-glass: rgba(255, 255, 255, 0.12);
    }
    body {
      background-color: var(--bg-base);
      color: #f1f5f9;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
    }
    .glow-btn {
      background: linear-gradient(135deg, #0066ff, #00d2ff);
      box-shadow: 0 0 20px rgba(0, 102, 255, 0.45);
      transition: all 0.3s ease;
    }
    .glow-btn:hover {
      box-shadow: 0 0 30px rgba(0, 240, 255, 0.7);
      transform: translateY(-2px);
    }
    .glow-border {
      position: relative;
    }
    .glow-border::after {
      content: '';
      position: absolute;
      inset: -1px;
      border-radius: inherit;
      padding: 1px;
      background: linear-gradient(135deg, rgba(0,240,255,0.4), rgba(121,40,202,0.4));
      -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
      -webkit-mask-composite: xor;
      mask-composite: exclude;
      pointer-events: none;
    }
    .glass-panel {
      background: var(--card-bg);
      backdrop-filter: blur(16px);
      border: 1px solid var(--border-glass);
    }
    .filter-tag.active {
      background: rgba(0, 102, 255, 0.25);
      border-color: #00f0ff;
      color: #00f0ff;
      box-shadow: 0 0 12px rgba(0, 240, 255, 0.3);
    }