:root{--bg:#f5f2ec;--panel:#fffdf8;--ink:#1b1d22;--muted:#68707d;--line:#d9d3c7;--reference:#0f6b68;--user:#be4b62;--live:#b76b16;--accent:#3454d1;--accent-strong:#253fb0;--warning:#9a5c00;--success:#2d6a4f;--shadow:0 12px 34px #1f232814}*{box-sizing:border-box}html,body{min-height:100%;color:var(--ink);background:var(--bg);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif}button,input,select{font:inherit}a{color:inherit}.shell{width:min(1180px,100vw - 32px);margin:0 auto;padding:28px 0 48px}.topbar{justify-content:space-between;align-items:center;gap:16px;margin-bottom:22px;display:flex}.brand{flex-direction:column;gap:4px;display:flex}.brand h1{margin:0;font-size:clamp(26px,3vw,38px);line-height:1.08}.brand 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