:root{--bg:#F4F7FA;--surface:#fff;--pale:#EAF1F6;--mint:#E9F8F8;--nav:#102E46;--deep:#163C57;--aqua:#13B8C5;--blue:#237BD3;--heading:#18364B;--body:#344C60;--muted:#64798A;--line:#DCE6ED}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:22px}body{margin:0;background:var(--bg);color:var(--body);font:16px/1.8 Arial,'PingFang SC','Microsoft YaHei',sans-serif}img{max-width:100%;height:auto}a{color:#1465a9;text-underline-offset:3px}a:hover{color:#087f93}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--aqua);outline-offset:3px}h1,h2,h3{color:var(--heading);line-height:1.38;letter-spacing:-.015em}h1{font-size:36px;margin:0 0 20px}h2{font-size:27px;margin:0 0 20px}h3{font-size:20px;margin:0 0 13px}p{margin:0 0 18px}ul,ol{padding-left:1.5em}li{margin-bottom:9px}section{scroll-margin-top:22px}.container{width:min(1200px,calc(100% - 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img{display:block;width:auto;height:auto;max-width:100%;max-height:var(--media-limit,220px);object-fit:contain;object-position:center}.media-frame--hero{--media-limit:310px}.media-frame--feature{--media-limit:250px}.media-frame--card{--media-limit:185px}.media-frame--wide{--media-limit:210px}.media-frame--mobile{--media-limit:350px;max-width:320px}.media-frame--logo{padding:0;background:none;border:0}.media-placeholder{min-height:100px;text-align:center;color:#64798A;font-size:13px}.media-placeholder.media-frame--hero{min-height:190px}.media-placeholder.media-frame--mobile{min-height:250px}.directory-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 35px}.directory-item{border-top:1px solid var(--line);padding:19px 0 22px}.directory-item h3{margin-bottom:7px}.directory-item a{text-decoration:none}.directory-item p{margin:0}.focus-layout{display:grid;grid-template-columns:2fr 1fr;gap:30px}.feature-story{padding:30px;background:#eaf1f6;border-top:4px solid var(--aqua)}.feature-story 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@media(max-width:1199px){.container{width:calc(100% - 44px)}.hero{gap:28px}.section{margin-block:48px}}
@media(max-width:920px){.brand-bar{width:calc(100% - 32px);height:63px;min-height:63px;display:grid;grid-template-columns:42px minmax(0,1fr) auto;gap:8px}.brand{justify-content:center}.brand-tagline,.primary-nav{display:none}.brand-logo .media-frame img{max-height:30px;max-width:min(42vw,170px)}.brand-logo .media-placeholder:before{font-size:14px}.register-link{min-height:38px;padding:6px 10px;font-size:12px}.menu-toggle{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;width:40px;height:40px;padding:8px;background:transparent;border:1px solid var(--line);border-radius:8px;cursor:pointer}.menu-toggle span{height:2px;width:20px;background:var(--nav)}.mobile-drawer{display:flex;flex-direction:column;position:fixed;left:0;top:0;bottom:0;width:min(86vw,340px);background:#fff;z-index:40;transform:translateX(-102%);transition:transform .2s ease;overflow-y:auto;padding:12px 20px 35px;visibility:hidden}.mobile-drawer.is-open{transform:translateX(0);visibility:visible}.drawer-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.drawer-close{background:transparent;border:0;font-size:34px;line-height:1;min-width:42px;min-height:42px;color:var(--nav)}.drawer-label{font-weight:800;color:var(--muted);font-size:13px;margin:13px 0 5px}.mobile-drawer>a{padding:10px;border-bottom:1px solid var(--line);color:var(--heading);text-decoration:none}.drawer-backdrop{display:block;position:fixed;inset:0;background:rgba(7,24,39,.52);z-index:39;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s ease}.drawer-backdrop.is-open{opacity:1;visibility:visible;pointer-events:auto}.drawer-open{overflow:hidden}.nojs-nav{display:flex;gap:12px;flex-wrap:wrap;padding:10px 0}.nojs-nav a{font-size:13px}.mobile-shortcuts{display:flex;justify-content:space-between;gap:8px;flex-wrap:wrap;padding:18px 0}.mobile-shortcuts a{font-size:13px}.hero h1{font-size:36px}}
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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}