:root{color-scheme:light;font-family:Inter,Microsoft YaHei,Segoe UI,Arial,sans-serif;color:#182335;background:#edf1f5;--bg: #edf1f5;--panel: #ffffff;--panel-soft: #f7f9fb;--ink: #182335;--muted: #66758a;--line: #d7dee8;--line-strong: #b9c5d4;--brand: #0f766e;--brand-strong: #0a5e58;--brand-soft: #e8f6f4;--accent: #315c91;--warn: #96620d;--danger: #a52b21;--add-bg: #e9f8ef;--add-ink: #17603a;--del-bg: #fff0ed;--del-ink: #9b241b;--chg-bg: #fff7d8;--chg-ink: #704700;--shadow: 0 18px 45px rgba(34, 48, 74, .08)}*{box-sizing:border-box}body{min-width:320px;margin:0}button,input{font:inherit}button{border:0}.shell{min-height:100vh}.topbar{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;padding:28px 36px 20px;background:linear-gradient(180deg,#fff,#f8fafc);border-bottom:1px solid 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