:root{--app-max-w: 1280px;--app-aside-w: 220px;--app-gap: 16px;--app-pad-x: clamp(12px, 3vw, 20px);--app-border: #e5e7eb;--app-bg: #f8fafc;--app-fg: #0f172a;--app-accent: #18a058}@media (prefers-color-scheme: dark){:root{--app-border: #334155;--app-bg: #0b1220;--app-fg: #e2e8f0;--app-accent: #63e2b7}}*,*:before,*:after{box-sizing:border-box}html,body,#app{height:100%}body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,PingFang SC,Microsoft YaHei,sans-serif;background:var(--app-bg);color:var(--app-fg)}