:root{color-scheme:light;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,PingFang SC,Microsoft YaHei,sans-serif;--color-brand: #2563eb;--color-brand-strong: #1d4ed8;--color-text: #1f2329;--color-muted: #667085;--color-border: #dbe1ea;--shadow-card: 0 12px 28px rgba(15, 23, 42, .08);--radius-md: 10px;--radius-lg: 14px}*{box-sizing:border-box}body{margin:0;background:#f5f7fb;color:var(--color-text)}a{text-decoration:none;color:inherit}.card{background:#fff;border-radius:var(--radius-md);border:1px solid #edf1f7}