:root{--bg:#F4F7FA;--white:#fff;--pale:#EAF1F6;--mint:#E9F8F8;--nav:#102E46;--nav2:#163C57;--teal:#13B8C5;--blue:#237BD3;--heading:#18364B;--text:#344C60;--muted:#64798A;--line:#DCE6ED;--footer:#0B2539;--container:1200px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:25px}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.82 Arial,"PingFang SC","Microsoft YaHei",sans-serif;overflow-wrap:anywhere}a{color:#116c99;text-decoration-thickness:1px;text-underline-offset:4px}a:hover{color:#075274}button{font:inherit;cursor:pointer}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #237BD3;outline-offset:3px}h1,h2,h3,h4{color:var(--heading);line-height:1.37;margin:0 0 .75em;font-weight:750}h1{font-size:clamp(27px,3.1vw,42px);letter-spacing:-.02em}h2{font-size:clamp(21px,2.2vw,27px)}h3{font-size:clamp(18px,1.65vw,21px)}p{margin:.3em 0 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@media(max-width:640px){body{font-size:15px;line-height:1.78}.container{padding-inline:16px}.section{margin-top:38px;margin-bottom:38px}h1{font-size:29px}.inner-intro h1{font-size:27px}h2{font-size:22px}h3{font-size:18px}.lede{font-size:16px}.hero{gap:18px}.media-frame--hero{--media-limit:205px}.media-frame--feature{--media-limit:185px}.media-frame--card{--media-limit:145px}.media-frame--article{--media-limit:175px}.media-frame--wide{--media-limit:135px}.media-frame--mobile{--media-limit:285px;max-width:250px}.topic-directory{padding:29px 0}.topic-item{padding:15px 0}.process,.route-steps{gap:10px}.process>div{padding:14px}.rule-index{padding:16px}.focus-lead h3{font-size:22px}.dark-band{padding:34px 0}.brand{font-size:16px}.brand img{max-width:155px}.register-link{padding:6px 8px;font-size:11px}.back-top{bottom:14px;right:12px}.section-heading{margin-bottom:18px}}
@media(max-width:370px){.container{padding-inline:16px}.brand{font-size:15px}.brand img{max-width:135px}.register-link{font-size:11px}.process,.route-steps{grid-template-columns:1fr}}
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