:root{--bg:#f6f5f2;--panel:#fff;--panel-soft:#fbfaf7;--text:#1d2329;--muted:#68727d;--line:#d9ded7;--accent:#16695a;--accent-strong:#0f5549;--accent-soft:#e2f1ed;--blue:#245f9c;--blue-soft:#e8f0f8;--red:#b9342c;--red-soft:#fae8e6;--green:#1e7a4e;--green-soft:#e5f3ea;--amber:#8a6200;--amber-soft:#f7efd4;--shadow:0 12px 32px #20282414}*{box-sizing:border-box}html,body{background:var(--bg);min-height:100%;color:var(--text);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,sans-serif}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.58}.appShell{width:min(1280px,100%);margin:0 auto;padding:20px}.topbar{justify-content:space-between;align-items:flex-end;gap:18px;padding:18px 0 14px;display:flex}.topbar h1,.stateShell h1{letter-spacing:0;margin:0;font-size:30px;line-height:1.15}.topbar p{color:var(--muted);margin:8px 0 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