/* roulang page: index */
:root {
      --font-pixel: "Courier New", Courier, monospace, "PingFang SC", "Microsoft YaHei";
    }
    body {
      background-color: #0d0f12;
      color: #f3f4f6;
      font-family: var(--font-pixel);
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }
    .scanlines {
      background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%), linear-gradient(90deg, rgba(255, 0, 0, 0.03), rgba(0, 255, 0, 0.01), rgba(0, 0, 255, 0.03));
      background-size: 100% 3px, 6px 100%;
      pointer-events: none;
    }
    .pixel-grid {
      background-image: radial-gradient(rgba(16, 185, 129, 0.12) 1px, transparent 0);
      background-size: 16px 16px;
    }
    .slanted-hero {
      clip-path: polygon(0 0, 100% 0, 100% 92%, 0 100%);
    }
    @media (max-width: 768px) {
      .slanted-hero {
        clip-path: polygon(0 0, 100% 0, 100% 96%, 0 100%);
      }
    }
    .pixel-btn {
      transition: transform 0.05s ease, box-shadow 0.05s ease;
    }
    .pixel-btn:active {
      transform: translate(2px, 2px);
      box-shadow: 2px 2px 0px #000000 !important;
    }
    .cursor-blink {
      animation: blink 1s step-start infinite;
    }
    @keyframes blink {
      50% { opacity: 0; }
    }

/* roulang page: category1 */
:root {
      --font-pixel: "Courier New", Courier, monospace, "PingFang SC", "Microsoft YaHei";
    }
    body {
      background-color: #0d0f12;
      color: #f3f4f6;
      font-family: var(--font-pixel);
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }
    .pixel-grid {
      background-image: radial-gradient(rgba(16, 185, 129, 0.12) 1px, transparent 0);
      background-size: 16px 16px;
    }
    .pixel-btn {
      transition: transform 0.05s ease, box-shadow 0.05s ease;
    }
    .pixel-btn:active {
      transform: translate(2px, 2px);
      box-shadow: 2px 2px 0px #000000 !important;
    }
    .scanline {
      position: relative;
    }
    .scanline::before {
      content: " ";
      display: block;
      position: absolute;
      top: 0; left: 0; bottom: 0; right: 0;
      background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%);
      background-size: 100% 4px;
      z-index: 2;
      pointer-events: none;
      opacity: 0.6;
    }
    .status-pulse {
      animation: statusBlink 1.4s infinite ease-in-out;
    }
    @keyframes statusBlink {
      0%, 100% { opacity: 1; }
      50% { opacity: 0.3; }
    }

/* roulang page: category2 */
:root {
            --font-pixel: "Courier New", Courier, monospace, "PingFang SC", "Microsoft YaHei";
        }
        body {
            background-color: #0d0f12;
            color: #f3f4f6;
            font-family: var(--font-pixel);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }
        .pixel-grid {
            background-image: radial-gradient(rgba(16, 185, 129, 0.12) 1px, transparent 0);
            background-size: 16px 16px;
        }
        .pixel-btn {
            transition: transform 0.05s ease, box-shadow 0.05s ease;
        }
        .pixel-btn:active {
            transform: translate(2px, 2px);
            box-shadow: 2px 2px 0px #000000 !important;
        }
        .retro-scanline {
            background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%);
            background-size: 100% 4px;
        }