:root{--brand: #7c6ff0;--brand-soft: rgba(124, 111, 240, .12);--brand-line: rgba(124, 111, 240, .3);--bg: #f4f5fb;--panel: #ffffff;--panel-2: #f3f4f9;--line: #e6e8f0;--text-1: #2b2f3a;--text-2: #8a90a2;--gutter: clamp(16px, 4vw, 56px);--shell: 1120px;--shadow-card: 0 6px 20px rgba(20, 24, 46, .06)}:root[data-theme=dark]{--bg: #14151b;--panel: #1d1f27;--panel-2: #24262f;--line: #2f323c;--text-1: #e6e8ee;--text-2: #9aa0b0;--brand-soft: rgba(124, 111, 240, .18);--shadow-card: 0 6px 20px rgba(0, 0, 0, .28)}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:-apple-system,PingFang SC,Microsoft YaHei,Segoe UI,sans-serif;background:var(--bg);color:var(--text-1);-webkit-font-smoothing:antialiased}#liuren-root{min-height:40vh}.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 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