:root{--background:#f5f7fa;--surface:#fff;--surface-subtle:#f8fafc;--text:#0f172a;--muted:#64748b;--subtle:#94a3b8;--border:#e2e8f0;--border-soft:#edf2f7;--primary:#059669;--primary-strong:#047857;--primary-soft:#ecfdf5;--blue:#2563eb;--red:#dc2626;--amber:#d97706;--shadow:0 1px 2px #0f172a09,0 8px 24px #0f172a09}*{box-sizing:border-box}html{background:var(--background)}body{background:var(--background);color:var(--text);-webkit-font-smoothing:antialiased;margin:0;font-family:Inter,Segoe UI,Microsoft YaHei,PingFang SC,sans-serif}button,input,select{font:inherit}button{cursor:pointer}.portal-shell{min-height:100vh}.topbar{z-index:40;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#f8fafce6;border-bottom:1px solid #e2e8f0e6;position:sticky;inset:0 0 auto}.topbar-inner,.page{width:min(1440px,100%);margin:0 auto}.topbar-inner{justify-content:space-between;align-items:center;gap:20px;min-height:64px;padding:10px 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