:root{--brand:#E4003A;--brand-dark:#B0002D;--ink:#1C2B3F;--navy:#17305A;--navy-deep:#0F2444;--paper:#FAF7F2;--white:#FFFFFF;--muted:#5B6675;--line:#E9E1D5;--green:#1E7A52;--green-bg:#E7F4EC;--amber:#9C5A08;--amber-bg:#FBF0DE;--navychip:#24476F;--navy-bg:#E9EFF7;--brand-bg:#FCE7EC;--radius:14px;--shadow:0 1px 2px rgba(28,43,63,.05),0 10px 30px rgba(28,43,63,.06);--shadow-lg:0 2px 6px rgba(28,43,63,.06),0 18px 44px rgba(28,43,63,.10);--font:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,sans-serif}*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{margin:0;font-family:var(--font);color:var(--ink);background:var(--paper);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}img{max-width:100%}a{color:var(--navy);text-decoration:none}a:hover{color:var(--brand)}:focus-visible{outline:3px solid 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