@charset "UTF-8";
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h2{font-family:var(--sans);font-size:20px;font-weight:600;line-height:1.5;margin-bottom:13px}.document-body p,.document-body li{font-size:14px;line-height:1.95}.document-body p{margin-bottom:14px}.document-body ul{padding-left:23px;color:var(--muted)}.document-body li{margin-bottom:12px}.document-body code{font-size:12px;overflow-wrap:anywhere;color:var(--green)}.document-body a{overflow-wrap:anywhere}html[lang=zh-CN] .hero h1{font-size:clamp(34px,3.5vw,48px);letter-spacing:.01em;line-height:1.4}html[lang=zh-CN] .document-header h1{line-height:1.45;font-size:43px}html[lang=zh-CN] .gmail h2{line-height:1.5}html[lang=zh-CN] .trust h2{line-height:1.5}
@media(min-width:1450px){.hero{padding-top:106px;padding-bottom:94px}.hero h1{font-size:65px}}
@media(max-width:1050px){.container{width:calc(100% - 56px)}.hero{gap:40px;padding-top:65px}.hero h1{font-size:44px}.header-inner{gap:20px}.header-inner nav{gap:17px}.gmail{gap:48px}.document-layout{grid-template-columns:200px minmax(0,1fr);gap:35px}.brand{font-size:17px}}
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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media print{body{background:white}.site-header,.site-footer,.toc,.skip-link{display:none}.container{width:100%}.document-layout{display:block;padding:25px 0}.document-header{padding-top:0}.document-body{max-width:none}.document-body section{break-inside:avoid}.workflow{box-shadow:none;transform:none}}