:root{--bg:#f1f3f5;--surface:#ffffff;--border:#e2e8f0;--border-light:#edf2f7;--blue:#0085ff;--blue-hover:#006edb;--blue-light:#e8f4ff;--blue-muted:rgba(0,133,255,.12);--text:#0f1923;--text-2:#4a5568;--text-3:#8a9ab0;--red:#f04d4d;--red-light:#fff0f0;--green:#22c55e;--green-light:#f0fff4;--radius:12px;--radius-sm:8px;--sidebar-w:240px;--feed-w:600px;--right-w:300px}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:Inter,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;font-size:15px;line-height:1.5}a{color:var(--blue);text-decoration:none}button{font-family:inherit;cursor:pointer}input,textarea{font-family:inherit}.layout{display:flex;max-width:1120px;margin:0 auto;padding:0 16px;min-height:100vh}.sidebar{width:var(--sidebar-w);flex-shrink:0;position:sticky;top:0;height:100vh;padding:12px 8px 16px;display:flex;flex-direction:column;gap:2px}.sidebar-logo{display:flex;align-items:center;gap:10px;padding:10px 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