:root{--bg:#F4F8FC;--wash:#E8F1FA;--white:#fff;--ink:#0E2A44;--text:#1C3A56;--muted:#3D5C78;--blue:#1E6FD9;--blue2:#6BA8F0;--deep:#0E4A9E;--amber:#E2B23A;--coral:#E07A62;--border:rgba(30,111,217,.26);--shadow:0 12px 28px rgba(14,42,68,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.75 system-ui,-apple-system,"Microsoft YaHei",sans-serif;overflow-x:hidden}body.is-open{overflow:hidden}a{color:var(--deep);text-decoration:none}a:hover{text-decoration:underline}button,input{font:inherit}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--deep);outline-offset:2px}img{max-width:100%;display:block}h1,h2,h3,p{margin:0}h1{font-size:24px;line-height:1.3;color:var(--ink);letter-spacing:-.3px}h2{font-size:20px;line-height:1.4;color:var(--ink)}h3{font-size:16px;color:var(--ink)}p{margin-top:13px}.wrap{max-width:960px;padding:0 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