:root{--bg:#F7FBFA;--white:#fff;--mist:#EDF7F5;--mint:#DDF3EF;--pink:#FBE8F0;--ink:#24343B;--body:#3A5056;--muted:#52686F;--teal:#16877F;--deep:#0C6864;--rose:#A93060;--border:rgba(32,107,103,.14);--shadow:0 12px 32px rgba(27,83,81,.10)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);font:16px/1.77 system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--body)}img{max-width:100%;height:auto}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--deep);outline-offset:3px}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.35;color:var(--ink)}h1{font-size:clamp(27px,3.4vw,39px);letter-spacing:-.035em}h2{font-size:clamp(22px,2.5vw,28px)}h3{font-size:19px}p{margin-bottom:1em}.wrap{max-width:1240px;padding:0 24px;margin:0 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@media(max-width:360px){.brand strong{font-size:16px}.brand small{font-size:8px}.brand{gap:7px}.header-actions{gap:5px}.icon-button{padding:6px 10px}.compact-grid .topic-body p{display:none}.hero-actions .btn{font-size:13px;padding:9px 12px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}