:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--background:#f4f7fb;--card:#fff;--card-muted:#f8fafc;--text:#102033;--muted:#64748b;--primary:#2563eb;--primary-dark:#1d4ed8;--border:#dbe4ef;--danger:#dc2626;--success:#16a34a}*{box-sizing:border-box}body{background:var(--background);min-height:100vh;color:var(--text);margin:0;font-family:Arial,PingFang SC,Microsoft YaHei,sans-serif}button,input,select,textarea{font:inherit}button{background:var(--primary);color:#fff;cursor:pointer;border:0;border-radius:10px;padding:10px 14px;font-weight:700}button:hover{background:var(--primary-dark)}button.secondary{color:var(--text);background:#e2e8f0}button.secondary:hover{background:#cbd5e1}button.danger{background:var(--danger)}input,select,textarea{border:1px solid var(--border);width:100%;color:var(--text);background:#fff;border-radius:10px;padding:10px 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