*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#EAF2FB;color:#24364F;font:16px/1.8 Arial,"PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}a:hover{color:#137CD8}a:focus-visible,button:focus-visible{outline:3px solid #137CD8;outline-offset:3px}p{margin:0 0 16px}h1,h2,h3{line-height:1.35;margin:0 0 16px}h1{font-size:34px;color:#143C66}h2{font-size:24px;color:#143C66}h3{font-size:19px;color:#21496B}button{font:inherit;cursor:pointer}.container{width:min(1160px,calc(100% - 48px));margin-inline:auto}.site-header{position:sticky;top:0;z-index:1000;background:white;box-shadow:0 3px 18px #1d548412}.header-inner{height:70px;max-width:1160px;margin:auto;padding:0 24px;display:flex;align-items:center;gap:28px;min-width:0}.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-weight:800;color:#137CD8;font-size:20px;flex-shrink:0}.brand .media{width:38px;height:38px;border-radius:5px;background:transparent}.brand .media img{max-height:38px}.brand-word{white-space:nowrap}.main-nav{display:flex;gap:23px;align-items:center;flex:1;white-space:nowrap;min-width:0}.main-nav .nav-link{font-size:14px;height:70px;display:flex;align-items:center;border-bottom:2px solid transparent}.main-nav .nav-link.active{color:#137CD8;border-bottom-color:#137CD8}.register-btn,.button-link{border-radius:999px;background:#137CD8;color:white!important;font-weight:700;display:inline-flex;align-items:center;justify-content:center;padding:7px 19px;white-space:nowrap;font-size:14px;min-height:41px}.register-btn:hover,.button-link:hover{background:#0865b6}.channel-bar{background:#F7FBFF;border-bottom:1px solid #dfeaf6}.channel-inner{max-width:1160px;margin:auto;min-height:44px;display:flex;gap:0;align-items:center;overflow-x:auto;white-space:nowrap;scrollbar-width:thin}.channel-inner a{font-size:14px;padding:0 16px;border-right:1px solid #d8e7f5;color:#5D718A}.channel-inner a.active{color:#137CD8;font-weight:700}.main-content{padding:30px 0 60px}.panel,.content-card,.article-card,.tile,.intro-box{background:#fff;border:1px solid rgba(47,168,247,.14);border-radius:12px;box-shadow:0 5px 18px #2b78bd0a}.panel{padding:28px;margin-bottom:28px}.intro-box{padding:34px 38px;margin-bottom:30px}.eyebrow{color:#137CD8;font-size:13px;letter-spacing:.08em;font-weight:bold;text-transform:uppercase}.lede{font-size:17px;color:#506986;line-height:1.85}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:15px;margin:36px 0 18px}.section-heading a,.text-link{color:#137CD8;font-size:14px;font-weight:bold}.grid{display:grid;gap:18px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.tile{padding:21px;min-width:0}.tile h3{margin-bottom:8px}.tile p{font-size:14px;color:#5D718A}.tile a.more{font-weight:bold;color:#137CD8;font-size:14px}.article-layout{display:grid;grid-template-columns:minmax(0,790px) minmax(245px,1fr);gap:22px;align-items:start}.article-body{padding:30px 34px}.article-body p{font-size:16px;line-height:1.84}.article-body section{margin-bottom:30px}.article-body h2{padding-bottom:11px;border-bottom:1px solid #e5eff8}.side-panel{padding:24px}.side-panel a{display:block;padding:12px 0;border-bottom:1px solid #e9f1f9}.related-links{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0 0}.related-links a,.chip{display:inline-flex;background:#ecf6ff;border-radius:8px;padding:8px 13px;color:#137CD8;font-size:14px}.hero{display:grid;grid-template-columns:54fr 46fr;gap:24px;align-items:center}.hero-media{min-width:0}.hero .media{max-height:300px}.hero-actions{display:flex;gap:10px;flex-wrap:wrap}.hero-actions a:not(.button-link){display:inline-flex;align-items:center;border:1px solid #bcdbfa;color:#137CD8;border-radius:25px;padding:5px 14px;font-size:14px}.feature-split{display:grid;grid-template-columns:1.15fr 1fr;gap:24px;align-items:center}.media{display:flex;align-items:center;justify-content:center;max-width:100%;width:100%;min-width:0;overflow:hidden;border-radius:12px;background:#EDF5FF}.media img{display:block;width:auto;height:auto;max-width:100%;max-height:100%;object-fit:contain;object-position:center}.media-wide{aspect-ratio:16/9}.media-banner{aspect-ratio:16/7}.media-square{aspect-ratio:1/1}.media-portrait{aspect-ratio:3/4}.media-device{aspect-ratio:9/16;max-height:340px}.media-natural{min-height:60px}.media-natural img{width:100%;height:auto;max-height:280px;object-fit:contain;margin:0 auto}.media-placeholder{width:100%;height:100%;min-height:65px;background:linear-gradient(135deg,#edf5ff,#dfefff)}.logo-tile .media{height:125px}.logo-tile h3{font-size:16px;margin:12px 0 5px}.gallery-tile .media{max-height:220px}.gallery-tile p{margin:12px 0 0}.image-grid .media{max-height:200px}.numbered{counter-reset:news;list-style:none;padding:0}.numbered li{counter-increment:news;padding:16px 0;border-bottom:1px solid #e2eefa}.numbered li:before{content:counter(news,decimal-leading-zero);color:#137CD8;font-weight:bold;display:inline-block;margin-right:14px}.faq-list details{background:white;border:1px solid #deebf6;padding:15px 18px;border-radius:10px;margin-bottom:12px}.faq-list summary{font-weight:bold;cursor:pointer}.faq-list p{margin:12px 0 0}.site-footer{background:#102B46;color:#EAF6FF;padding:44px 0 20px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.1fr;gap:28px}.site-footer h2{color:white;font-size:17px}.site-footer section>a:not(.footer-brand){display:block;color:#d3e8f7;font-size:14px;line-height:2.3}.site-footer p{font-size:14px;color:#c9deee}.footer-brand{display:flex;align-items:center;gap:10px;font-size:19px}.footer-brand .media{width:40px;height:40px;background:transparent}.footer-bottom{border-top:1px solid #ffffff2a;margin-top:28px;padding-top:16px;display:flex;justify-content:space-between;gap:16px;color:#c9deee;font-size:13px}.menu-toggle,.mobile-drawer,.drawer-mask,.bottom-nav{display:none}.muted{color:#5D718A}.small-note{font-size:13px;color:#5D718A}.callout{border-left:3px solid #137CD8;padding:15px 18px;background:#f2f9ff;border-radius:5px}.back-top{border:1px solid #b5d7f4;background:#fff;border-radius:25px;padding:9px 17px;color:#137CD8}.art-meta{color:#5D718A;font-size:14px}.page-bottom{margin-top:30px}.page-bottom .panel{margin:0}.wide-section{margin-bottom:38px}.footer-about .media-placeholder,.brand .media-placeholder{background:transparent}
@media(max-width:1100px){.header-inner{gap:18px}.main-nav{gap:14px}.brand{font-size:18px}.main-nav .nav-link{font-size:13px}}
@media(max-width:980px){.header-inner{height:58px;justify-content:space-between;gap:9px;padding:0 20px}.main-nav{display:none}.brand{margin:0 auto;font-size:18px}.brand .media{width:29px;height:29px}.brand .media img{max-height:29px}.register-btn{min-height:36px;padding:4px 12px;font-size:13px}.menu-toggle{display:flex;border:0;background:none;padding:9px 5px;flex-direction:column;gap:5px;align-items:center;justify-content:center;width:34px;height:40px;flex:none}.menu-toggle span{display:block;width:22px;height:2px;background:#24364F}.mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);height:100vh;height:100dvh;overflow-y:auto;background:white;z-index:12000;transform:translateX(-105%);visibility:hidden;pointer-events:none;transition:transform .2s ease,visibility .2s}.mobile-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-mask{display:block;position:fixed;inset:0;background:rgba(16,43,70,.38);z-index:11000;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .18s ease,visibility .18s}.drawer-mask.is-visible{opacity:1;visibility:visible;pointer-events:auto}body.drawer-open{overflow:hidden}.drawer-head{position:sticky;top:0;z-index:1;background:#fff;display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid #e4f0fa}.drawer-brand{font-weight:800;color:#137CD8}.drawer-brand small{display:block;font-size:10px;letter-spacing:.06em}.drawer-close{border:none;background:#eef7ff;font-size:26px;border-radius:9px;line-height:1;padding:7px 12px}.drawer-group{padding:12px 15px;border-bottom:1px solid #e8eff6}.drawer-group h2{font-size:14px;color:#5D718A;margin:4px 0 8px}.drawer-group a{display:block;min-height:44px;padding:8px 10px;border-radius:6px;font-size:15px}.drawer-group a.active{background:#edf6ff;color:#137CD8}.bottom-nav{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:990;height:60px;background:#fff;border-top:1px solid #dcebf9;justify-content:space-around;align-items:center}.bottom-nav a{display:flex;align-items:center;justify-content:center;flex:1;height:100%;font-size:14px}.bottom-nav a.active{color:#137CD8;font-weight:bold}.site-footer{padding-bottom:86px}.main-content{padding-bottom:42px}.article-layout{grid-template-columns:minmax(0,1fr)}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.channel-inner{padding:0 12px}}
@media(max-width:768px){.container{width:calc(100% - 40px)}.hero,.feature-split{grid-template-columns:minmax(0,1fr)}.hero-media{order:-1}.grid-3,.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.intro-box{padding:26px}.panel{padding:22px}.article-body{padding:26px}.main-content{padding-top:22px}h1{font-size:28px}h2{font-size:21px}.media-device{max-height:270px}.footer-bottom{flex-direction:column}.hero .media{max-height:195px}}
@media(max-width:480px){.container{width:calc(100% - 32px)}.header-inner{padding:0 12px}.brand{font-size:16px;gap:5px}.brand-word{max-width:84px;overflow:hidden;text-overflow:ellipsis}.register-btn{padding:3px 10px}.intro-box{padding:22px 18px}.panel,.article-body{padding:19px}.tile{padding:16px}.grid{gap:12px}.grid-2,.grid-3,.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.tile h3{font-size:16px}.tile p{font-size:13px}.tile .media{max-height:120px}.gallery-tile .media{max-height:155px}body{font-size:15px}h1{font-size:26px}.section-heading{margin-top:26px}.footer-grid{gap:22px 12px}.footer-about{grid-column:span 2}.hero .media{max-height:185px}.logo-tile .media{height:95px}.media-device{max-height:250px}}
@media(max-width:350px){.grid-3:not(.brands-grid){grid-template-columns:1fr}.brand-word{max-width:66px}.header-inner{gap:5px}.register-btn{font-size:12px;padding:3px 8px}.channel-inner a{padding:0 12px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}