/* roulang page: index */
:root {
      --primary: #FF5A1F;
      --primary-hover: #E04810;
      --primary-subtle: rgba(255, 90, 31, 0.08);
      --dark-base: #121417;
      --dark-card: #161B22;
      --dark-slate: #0D1117;
      --light-bg: #F6F8FA;
      --text-main: #121417;
      --text-muted: #57606A;
      --border-color: #E1E4E8;
      --safe-green: #0E7490;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: #FFFFFF;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }
    .clip-hero-diagonal {
      clip-path: polygon(0 0, 100% 0, 100% 95%, 0 100%);
    }
    @media (max-width: 768px) {
      .clip-hero-diagonal {
        clip-path: none;
      }
    }
    .tech-border-glow {
      border: 1px solid rgba(255, 90, 31, 0.25);
      box-shadow: 0 0 20px rgba(255, 90, 31, 0.08);
    }
    .search-glow:focus-within {
      border-color: var(--primary);
      box-shadow: 0 0 0 4px rgba(255, 90, 31, 0.15);
    }
    .tab-active {
      background-color: var(--primary);
      color: #ffffff;
    }