:root{--bg:#f0f2f5;--panel:#fff;--line:#d8e0e8;--text:#273444;--muted:#6b7785;--accent:#1677ff;--danger:#e85d5d;--ok:#3ecf8e;--font:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;--mono:Consolas,"Courier New",monospace}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;min-height:100%}
body{font-family:var(--font);color:var(--text)}
.hidden{display:none!important}.muted{color:var(--muted);font-size:13px}
.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}