/* roulang page: index */
:root {
      --bg-base: #0D1117;
      --bg-surface: #161B22;
      --bg-card: #21262D;
      --brand-primary: #FF4B26;
      --brand-accent: #00E599;
      --brand-cyan: #00A3FF;
      --text-main: #F0F6FC;
      --text-muted: #8B949E;
      --text-dim: #484F58;
      --border-subtle: rgba(255, 255, 255, 0.08);
      --border-focus: #00E599;
      --radius-sm: 2px;
    }

    body {
      background-color: var(--bg-base);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
      line-height: 1.6;
    }

    .grid-pattern {
      background-image: linear-gradient(to right, rgba(255,255,255,0.03) 1px, transparent 1px),
                        linear-gradient(to bottom, rgba(255,255,255,0.03) 1px, transparent 1px);
      background-size: 32px 32px;
    }

    .btn-glow {
      transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .btn-glow:hover {
      box-shadow: 0 0 20px rgba(255, 75, 38, 0.5);
      transform: translateY(-1px);
    }

    .card-bracket {
      border: 1px solid var(--border-subtle);
      background: var(--bg-surface);
      border-radius: var(--radius-sm);
      transition: transform 0.2s ease, border-color 0.2s ease;
    }
    .card-bracket:hover {
      border-color: rgba(255, 75, 38, 0.4);
      transform: translateY(-2px);
    }

    .scrollbar-none::-webkit-scrollbar {
      display: none;
    }
    .scrollbar-none {
      -ms-overflow-style: none;
      scrollbar-width: none;
    }

/* roulang page: category1 */
:root {
      --bg-base: #0D1117;
      --bg-surface: #161B22;
      --bg-card: #21262D;
      --brand-primary: #FF4B26;
      --brand-accent: #00E599;
      --brand-cyan: #00A3FF;
      --text-main: #F0F6FC;
      --text-muted: #8B949E;
      --text-dim: #484F58;
      --border-subtle: rgba(255, 255, 255, 0.08);
      --border-focus: #00E599;
      --radius-sm: 2px;
    }
    body {
      background-color: var(--bg-base);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
      line-height: 1.6;
    }
    .grid-pattern {
      background-image: linear-gradient(to right, rgba(255,255,255,0.03) 1px, transparent 1px),
                        linear-gradient(to bottom, rgba(255,255,255,0.03) 1px, transparent 1px);
      background-size: 32px 32px;
    }
    .btn-glow {
      transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .btn-glow:hover {
      box-shadow: 0 0 20px rgba(255, 75, 38, 0.5);
      transform: translateY(-1px);
    }
    .card-bracket {
      border: 1px solid var(--border-subtle);
      background: var(--bg-surface);
      border-radius: var(--radius-sm);
      transition: transform 0.2s ease, border-color 0.2s ease;
    }
    .card-bracket:hover {
      border-color: rgba(255, 75, 38, 0.4);
      transform: translateY(-2px);
    }
    .neon-border-green {
      border-color: rgba(0, 229, 153, 0.3);
      box-shadow: 0 0 12px rgba(0, 229, 153, 0.15);
    }