:root{--primary-color:#1677ff;--text-color:#333;--text-muted:#666;--bg-color:#fff;--bg-gray:#f5f5f5;--border-color:#e8e8e8}body,html{margin:0;padding:0;min-height:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body,h1,h2,h3,h4,h5,h6{color:var(--text-color)}h1,h2,h3,h4,h5,h6{font-weight:600}h1{font-size:28px}h2{font-size:24px}h3{font-size:20px}h4{font-size:16px}a{color:var(--primary-color);text-decoration:none}a:hover{color:#4096ff}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#d9d9d9;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#bfbfbf}::selection{background:rgba(22,119,255,.15);color:var(--text-color)}