/* roulang page: index */
:root {
            --bg-main: #0b0e14;
            --bg-card: #192231;
            --accent-pink: #ff2a6d;
            --accent-cyan: #05d9e8;
            --text-main: #ffffff;
            --text-muted: #cbd5e1;
            --border-dim: #2b394e;
        }
        body {
            background-color: var(--bg-main);
            color: var(--text-muted);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            overflow-x: hidden;
        }
        .hero-slant {
            clip-path: polygon(0 0, 100% 0, 100% 88%, 0 100%);
        }
        @media (max-width: 768px) {
            .hero-slant {
                clip-path: polygon(0 0, 100% 0, 100% 95%, 0 100%);
            }
        }
        .glow-border {
            border: 1px solid var(--border-dim);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .glow-border:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 20px rgba(5, 217, 232, 0.25);
            transform: translateY(-2px);
        }
        .nav-scrolled .brand-row {
            display: none !important;
        }
        .nav-scrolled {
            box-shadow: 0 10px 30px rgba(0,0,0,0.8);
            background: rgba(11, 14, 20, 0.95);
            backdrop-filter: blur(12px);
        }
        .accordion-content {
            transition: max-height 0.3s ease-out, opacity 0.3s ease-out;
            max-height: 0;
            opacity: 0;
            overflow: hidden;
        }
        .accordion-open .accordion-content {
            max-height: 250px;
            opacity: 1;
        }
        .accordion-open .accordion-icon {
            transform: rotate(180deg);
            color: var(--accent-pink);
        }

/* roulang page: category1 */
:root {
      --bg-main: #0b0e14;
      --bg-card: #192231;
      --accent-pink: #ff2a6d;
      --accent-cyan: #05d9e8;
      --text-main: #ffffff;
      --text-muted: #cbd5e1;
      --border-dim: #2b394e;
    }
    body {
      background-color: var(--bg-main);
      color: var(--text-muted);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      overflow-x: hidden;
    }
    .hero-slant {
      clip-path: polygon(0 0, 100% 0, 100% 95%, 0 100%);
    }
    .glow-border {
      border: 1px solid var(--border-dim);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .glow-border:hover {
      border-color: var(--accent-cyan);
      box-shadow: 0 0 20px rgba(5, 217, 232, 0.25);
      transform: translateY(-2px);
    }
    .nav-scrolled .brand-row {
      display: none !important;
    }
    .nav-scrolled {
      box-shadow: 0 10px 30px rgba(0,0,0,0.8);
      background: rgba(11, 14, 20, 0.95);
      backdrop-filter: blur(12px);
    }
    .hud-bar {
      background: repeating-linear-gradient(
        90deg,
        #05d9e8,
        #05d9e8 6px,
        transparent 6px,
        transparent 10px
      );
    }
    .no-scrollbar::-webkit-scrollbar {
      display: none;
    }
    .no-scrollbar {
      -ms-overflow-style: none;
      scrollbar-width: none;
    }
    @media (max-width: 768px) {
      .hero-slant {
        clip-path: polygon(0 0, 100% 0, 100% 95%, 0 100%);
      }
    }