:root{--brand:#165caa;--brand-hover:#0e4789;--brand-soft:#eaf2fc;--navy:#102e4a;--aqua:#12a8a0;--ink:#182c40;--text:#34495e;--muted:#5c6f82;--line:#e1e8f0;--paper:#f4f7fb;--white:#fff;--radius:14px;--shadow:0 12px 34px #193b6310;--font:"Microsoft YaHei","PingFang SC","Noto Sans SC",system-ui,sans-serif;--blue:var(--brand);--deep:var(--navy)}