*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#F7F8FC;color:#38445A;font:16px/1.78 system-ui,-apple-system,"Microsoft YaHei","PingFang SC",sans-serif;overflow-wrap:anywhere}a{color:inherit;text-decoration:none}a:hover{color:#7566AB}button,input{font:inherit}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #7566AB;outline-offset:3px}img{max-width:100%;height:auto;object-fit:contain;object-position:center;display:block}.wrap{width:min(1160px,calc(100% - 56px));margin-inline:auto}.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;z-index:120;background:#fff;padding:8px}.site-header{background:#fff;border-bottom:1px solid #E2E8F1}.brandbar{min-height:70px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:9px;white-space:nowrap;color:#202B43}.brand img,.footer-brand img{max-height:30px;width:auto}.brand strong{font-size:22px;letter-spacing:.04em}.brand small{font-size:10px;letter-spacing:.13em;font-weight:700}.toplinks{display:flex;gap:25px;margin-left:auto;align-items:center}.toplinks a,.service-link,.subbar a{font-size:14px;white-space:nowrap}.head-actions{display:flex;gap:13px;align-items:center}.icon-button{width:44px;height:44px;display:grid;place-items:center;border:0;background:transparent;color:#202B43;border-radius:10px;font-size:31px}.icon-button:hover{background:#EEF3FA}.icon-button svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round}.menu-trigger{display:none}.nojs-menu{display:none;font-size:14px}.subbar{background:#EEF3FA}.sub-inner{min-height:40px;display:flex;justify-content:space-between;align-items:center;gap:16px}.sub-inner>span{font-size:13px;color:#637189}.subbar nav{display:flex;gap:25px}.subbar [aria-current],.toplinks [aria-current]{color:#7566AB;text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:7px}main{padding-block:32px 70px;min-height:48vh}h1,h2,h3{color:#202B43;line-height:1.32;overflow-wrap:anywhere}h1{font-size:32px;margin:10px 0 18px}h2{font-size:25px;margin:0 0 16px}h3{font-size:19px;margin:0 0 12px}p{margin:0 0 15px;max-width:77ch}.eyebrow{font-size:13px;color:#7566AB;font-weight:700;letter-spacing:.1em}.lead{font-size:17px;max-width:72ch}.section{margin-block:54px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:20px}.section-head p{max-width:62ch;margin:0}.text-link{display:inline-flex;align-items:center;min-height:44px;color:#594d8d;font-weight:700}.text-link::after{content:' ↗'}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:8px 18px;background:#202B43;color:white;border-radius:10px;font-weight:600}.btn:hover{background:#7566AB;color:white}.btn.secondary{background:#EEF3FA;color:#202B43}.buttons{display:flex;gap:12px;flex-wrap:wrap;margin-top:19px}.panel,.tile,.article-card{background:#fff;border:1px solid #E2E8F1;border-radius:12px;padding:22px;min-width:0}.media{display:grid;place-items:center;min-width:0;background:#EEF3FA;border-radius:10px;padding:10px;max-width:100%;max-height:260px}.media img{width:auto;max-width:100%;max-height:240px}.media-fallback{color:#637189;text-align:center;border:1px solid #E2E8F1;min-height:110px;font-weight:600}.media-fallback span{padding:12px}.hero{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);align-items:center;gap:30px;padding:26px 0}.hero .media{max-height:260px}.hero img{max-height:240px}.feature{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.8fr);gap:24px;align-items:center}.feature .media{max-height:170px}.feature .media img{max-height:150px}.cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px}.tile{padding:18px;display:flex;flex-direction:column}.tile .media{max-height:155px;margin-bottom:15px}.tile .media img{max-height:135px}.tile h3{font-size:18px}.tile p{font-size:14px;line-height:1.7}.tile .text-link{margin-top:auto}.duo{display:grid;grid-template-columns:1.12fr 1fr;gap:18px}.duo .media{max-height:180px;margin-bottom:14px}.duo .media img{max-height:160px}.editorial{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.5fr);gap:28px;align-items:center}.editorial .media img{max-height:210px}.topic-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.topic-list>*{min-width:0;border-top:2px solid #D9E7F6;padding-top:12px}.three{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.split{display:grid;grid-template-columns:1fr 1.25fr;gap:24px;align-items:start}.split .media{max-height:230px}.split .media img{max-height:210px}.app-section{display:grid;grid-template-columns:minmax(0,240px) minmax(0,1fr);gap:36px;align-items:center}.app-section .media{max-width:210px;max-height:340px;margin-inline:auto}.app-section img{max-height:320px}.article-top{margin-bottom:28px}.article-top .lead{margin-bottom:16px}.article-layout{display:grid;grid-template-columns:190px minmax(0,1fr);gap:32px}.article-layout aside{position:sticky;top:20px;align-self:start;border-left:2px solid #D9E7F6;padding-left:15px}.article-layout aside a{display:block;font-size:14px;padding:7px 0}.article section{scroll-margin-top:24px;margin-bottom:30px}.article section p{max-width:76ch}.article .hint{border-left:3px solid #7566AB;background:#EEF3FA;padding:14px 18px;margin:20px 0;border-radius:0 10px 10px 0}.article-image{max-width:560px;margin:16px auto 28px}.article-image img{max-height:240px}.article-intro{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);gap:26px;align-items:center;margin-bottom:30px}.article-intro .media img{max-height:220px}.article-columns{display:grid;grid-template-columns:1fr 1fr;gap:26px}.article-columns section{margin-bottom:12px}.related{border-top:1px solid #E2E8F1;margin-top:28px;padding-top:22px}.related a{display:inline-flex;align-items:center;min-height:44px;margin-right:18px;color:#594d8d}.faq-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}.faq-list article{background:#fff;border:1px solid #E2E8F1;border-radius:10px;padding:20px}.faq-list article h2{font-size:19px}.end-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.site-footer{background:#202B43;color:#eef3fa;padding:36px 0 20px}.footer-brand>a{display:inline-flex;align-items:center;gap:12px;color:white;font-weight:700}.footer-brand p{color:#d2dae8;margin-top:10px;font-size:14px}.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:25px;margin-block:30px}.footer-grid h2{font-size:16px;color:#fff}.footer-grid a{display:block;font-size:14px;padding:4px 0;color:#dce4f1}.footer-grid a:hover{color:#fff;text-decoration:underline}.footer-end{border-top:1px solid #536078;padding-top:18px;font-size:13px;display:flex;justify-content:space-between;gap:12px}.overlay[hidden]{display:none!important}.overlay{position:fixed;inset:0;z-index:99;display:flex;justify-content:center;align-items:flex-start;padding:12px}.overlay-backdrop{position:absolute;inset:0;background:#172238c9}.menu-dialog,.search-dialog{z-index:1;position:relative;background:#fff;border-radius:12px;width:min(860px,100%);max-height:calc(100dvh - 24px);display:flex;flex-direction:column;box-shadow:0 20px 65px #1118}.menu-dialog{min-height:min(720px,calc(100dvh - 24px))}.search-dialog{max-width:650px;margin-top:7vh}.dialog-head{display:flex;justify-content:space-between;align-items:center;padding:15px 22px;border-bottom:1px solid #E2E8F1;gap:15px}.dialog-head h2{font-size:21px;margin:0}.dialog-content{padding:20px 24px;overflow-y:auto;overscroll-behavior:contain}.directory-groups{display:grid;grid-template-columns:1fr 1fr;gap:22px}.directory-groups h3{font-size:16px;color:#7566AB}.directory-links{display:grid;grid-template-columns:1fr 1fr;gap:4px 12px}.directory-links a,.search-all a,#search-results a{display:block;padding:7px 5px;min-height:44px}.directory-links a:hover,.search-all a:hover,#search-results a:hover{background:#EEF3FA}.search-dialog label{display:block;font-weight:700;margin-bottom:8px}.search-dialog input{width:100%;min-height:48px;padding:10px 14px;border:1px solid #637189;border-radius:10px}.search-note{font-size:13px;color:#637189;margin:8px 0}.search-all{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0 8px;border-top:1px solid #E2E8F1;padding-top:10px;margin-top:12px}.locked{overflow:hidden}.mobile-end{display:none}
@media(max-width:1024px){.wrap{width:calc(100% - 44px)}.toplinks{gap:13px}.toplinks a:nth-child(n+3){display:none}.menu-trigger{display:grid}.sub-inner>span{display:none}.sub-inner{justify-content:flex-end}}@media(max-width:768px){.toplinks,.service-link,.subbar{display:none}.wrap{width:calc(100% - 32px)}.brandbar{min-height:60px}.brand small{display:none}.head-actions{margin-left:auto;gap:2px}.hero,.feature,.editorial,.split,.app-section,.article-intro,.article-layout{grid-template-columns:1fr}.hero{gap:18px;padding:8px 0}.hero .media{max-height:220px}.hero img{max-height:200px}.cards,.article-columns,.faq-list{grid-template-columns:repeat(2,minmax(0,1fr))}.duo,.three,.topic-list{grid-template-columns:1fr 1fr}.article-layout aside{position:static;display:flex;gap:12px;flex-wrap:wrap;border-left:0;border-bottom:1px solid #E2E8F1;padding:0 0 12px}.article-layout aside a{padding:5px}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.mobile-end{display:flex;justify-content:space-around;gap:8px;border-top:1px solid #E2E8F1;padding-top:15px}.mobile-end a{min-height:44px;display:flex;align-items:center}.article-intro .media{order:1}.app-section .media{margin:0}.section{margin-block:36px}h1{font-size:28px}h2{font-size:22px}.directory-groups{grid-template-columns:1fr 1fr}}@media(max-width:480px){.cards,.duo,.three,.topic-list,.article-columns,.faq-list,.end-cards,.directory-groups{grid-template-columns:1fr}.section-head{align-items:start;flex-direction:column}.panel,.tile,.article-card{padding:17px}.app-section .media{margin-inline:auto}.footer-end{flex-direction:column}.directory-links{grid-template-columns:repeat(2,minmax(0,1fr))}.search-all{grid-template-columns:repeat(2,minmax(0,1fr))}.dialog-content{padding:16px}.dialog-head{padding:12px 16px}h1{font-size:27px}h2{font-size:21px}main{padding-top:22px}}@media(max-width:340px){.directory-links{grid-template-columns:1fr}.brand strong{font-size:19px}.brandbar{gap:8px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}@media print{.site-header,.site-footer,.overlay{display:none!important}main{width:100%}}