/* roulang page: index */
:root {
      --color-arena: #0C0E12;
      --color-amber: #F97316;
      --color-amber-dark: #EA580C;
      --color-line: #1F2937;
      --color-line-light: #E2E8F0;
      --color-bg-light: #F8FAFC;
    }
    body {
      background-color: #FFFFFF;
      color: #0C0E12;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    .clip-slant {
      clip-path: polygon(0 0, 100% 0, 100% 86%, 0 100%);
    }
    @media (max-width: 768px) {
      .clip-slant {
        clip-path: polygon(0 0, 100% 0, 100% 93%, 0 100%);
      }
    }
    .court-grid {
      background-size: 40px 40px;
      background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    }
    .light-grid {
      background-size: 32px 32px;
      background-image: 
        linear-gradient(to right, rgba(15, 23, 42, 0.03) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(15, 23, 42, 0.03) 1px, transparent 1px);
    }
    .tabular-nums {
      font-variant-numeric: tabular-nums;
    }

/* roulang page: category2 */
:root {
            --color-arena: #0C0E12;
            --color-amber: #F97316;
            --color-amber-dark: #EA580C;
            --color-line: #1F2937;
            --color-line-light: #E2E8F0;
            --color-bg-light: #F8FAFC;
        }
        body {
            background-color: #FFFFFF;
            color: #0C0E12;
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        .court-grid {
            background-size: 40px 40px;
            background-image: 
                linear-gradient(to right, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
                linear-gradient(to bottom, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
        }
        .light-grid {
            background-size: 32px 32px;
            background-image: 
                linear-gradient(to right, rgba(15, 23, 42, 0.03) 1px, transparent 1px),
                linear-gradient(to bottom, rgba(15, 23, 42, 0.03) 1px, transparent 1px);
        }
        @media (max-width: 768px) {
            .clip-slant {
                clip-path: polygon(0 0, 100% 0, 100% 93%, 0 100%);
            }
        }
        /* Custom Accordion & Filter Interactions */
        details summary::-webkit-details-marker {
            display: none;
        }
        .mono-num {
            font-variant-numeric: tabular-nums;
            font-feature-settings: "tnum";
        }

/* roulang page: category1 */
:root {
      --color-arena: #0C0E12;
      --color-amber: #F97316;
      --color-amber-dark: #EA580C;
      --color-line: #1F2937;
      --color-line-light: #E2E8F0;
      --color-bg-light: #F8FAFC;
    }
    body {
      background-color: #FFFFFF;
      color: #0C0E12;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    .court-grid {
      background-size: 40px 40px;
      background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    }
    .light-grid {
      background-size: 32px 32px;
      background-image: 
        linear-gradient(to right, rgba(15, 23, 42, 0.03) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(15, 23, 42, 0.03) 1px, transparent 1px);
    }
    .tactical-border {
      border: 1px solid var(--color-line-light);
      position: relative;
    }
    .tactical-border::after {
      content: '';
      position: absolute;
      bottom: -1px;
      right: -1px;
      width: 8px;
      height: 8px;
      background: var(--color-amber);
    }
    .dark-tactical-card {
      border: 1px solid #1F2937;
      position: relative;
      transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .dark-tactical-card:hover {
      border-color: #F97316;
      transform: translateY(-2px);
      box-shadow: 0 10px 25px -5px rgba(249, 115, 22, 0.12);
    }
    .tab-active {
      background-color: #F97316;
      color: #FFFFFF;
      border-color: #EA580C;
    }