*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:#252B3A;font:16px/1.78 Arial,"PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}a:hover{color:#315CFF}button{font:inherit;cursor:pointer}img{max-width:100%}.wrap{max-width:1160px;margin:auto;padding:0 24px}h1,h2,h3{color:#17213A;line-height:1.38}h1{font-size:36px;margin:0 0 17px}h2{font-size:25px;margin:0 0 16px}h3{font-size:19px;margin:0 0 10px}p{margin:0 0 16px}.muted,.eyebrow{color:#5F6B82}.eyebrow{font-size:13px;letter-spacing:1px;text-transform:uppercase;font-weight:700}.site-head{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);box-shadow:0 1px 8px rgba(17,33,74,.05)}.topbar{height:70px;display:flex;align-items:center;gap:28px}.brand{flex-shrink:0;display:inline-flex;align-items:center;min-width:126px;color:#315CFF;font-size:21px;font-weight:800;white-space:nowrap}.brand span{color:#17213A}.logo-box{height:36px;max-width:150px;min-height:0;background:transparent!important;aspect-ratio:auto!important}.logo-box img{height:100%;width:auto;max-width:150px}.main-nav{display:flex;gap:27px;align-items:center;flex:1;justify-content:center;white-space:nowrap}.main-nav a{font-size:14px;font-weight:600;height:70px;display:flex;align-items:center;border-bottom:2px solid transparent}.main-nav a.active{color:#315CFF;border-bottom-color:#315CFF}.main-btn{display:inline-flex;justify-content:center;align-items:center;border-radius:999px;height:40px;padding:0 23px;background:#315CFF;color:#fff!important;font-weight:700;font-size:14px;white-space:nowrap}.subnav{background:#F5F7FB}.subscroll{height:44px;display:flex;overflow-x:auto;gap:0;align-items:center;white-space:nowrap;scrollbar-width:none}.subscroll a{font-size:13px;line-height:1;padding:0 16px;border-right:1px solid #dce2ec;color:#5F6B82}.subscroll a:first-child{padding-left:0}.subscroll a:last-child{border:0}.subscroll a.active{color:#315CFF}.section{padding:44px 0}.section.tint{background:#F5F7FB}.section-title{margin-bottom:25px}.section-title .section-link{float:right;font-size:14px;color:#315CFF;font-weight:600}.lead{font-size:17px;color:#5F6B82;max-width:820px}.page-hero{padding:48px 0 30px;border-bottom:1px solid #e8edf6}.page-hero p{max-width:820px;color:#5F6B82;font-size:17px}.article-wrap{display:grid;grid-template-columns:minmax(0,1fr) 252px;gap:55px;padding-top:42px;padding-bottom:58px}.article-body{max-width:820px;min-width:0}.article-body>section{margin:0 0 34px}.article-body h2{padding-left:14px;border-left:4px solid #315CFF}.article-body p{line-height:1.84}.sidebox{border:1px solid rgba(49,92,255,.14);border-radius:14px;padding:20px;position:sticky;top:142px;align-self:start}.sidebox a,.link-stack a{display:block;padding:10px 0;border-bottom:1px solid #eef0f5;font-size:14px}.sidebox a:last-child,.link-stack a:last-child{border:0}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.card{min-width:0;border:1px solid rgba(49,92,255,.14);border-radius:14px;background:#fff;padding:21px;overflow:hidden}.card h3{margin:5px 0 10px}.card p{font-size:14px;line-height:1.7;color:#5F6B82}.card .read-more{font-size:14px;color:#315CFF;font-weight:700}.card-image{padding:0}.card-image .media{border-radius:14px 14px 0 0}.card-image .card-copy{padding:15px 18px}.two-col{display:grid;grid-template-columns:1.25fr 1fr;gap:32px;align-items:center}.two-col.equal{grid-template-columns:1fr 1fr}.media{display:flex;align-items:center;justify-content:center;background:#EEF4FF;border-radius:12px;min-width:0;width:100%;overflow:hidden;aspect-ratio:var(--image-ratio,16 / 9)}.media img{display:block;width:auto;height:auto;max-width:100%;max-height:100%;object-fit:contain;object-position:center}.media-natural{max-height:300px;aspect-ratio:auto}.media-natural img{width:auto;max-width:100%;height:auto;max-height:280px}.media-placeholder{width:100%;min-height:120px;aspect-ratio:var(--image-ratio,16 / 9);background:linear-gradient(125deg,#EEF4FF,#f6f9ff)}.media-banner{aspect-ratio:16 / 7;max-height:320px}.media-banner .media-placeholder{aspect-ratio:16 / 7}.media-device{max-height:330px;aspect-ratio:auto}.media-device img{max-height:330px}.tile-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.tile-grid .media{height:170px;aspect-ratio:auto}.tile-grid .media img{max-height:170px}.tile-grid .media-placeholder{height:170px;min-height:0;aspect-ratio:auto}.news-list{list-style:none;padding:0;margin:0;counter-reset:news}.news-list li{display:flex;gap:18px;padding:19px 0;border-bottom:1px solid #e6ecf5}.news-list li:before{counter-increment:news;content:counter(news,decimal-leading-zero);font-weight:800;color:#315CFF;font-size:19px}.news-list a{font-weight:700}.news-list p{margin:4px 0 0;color:#5F6B82;font-size:14px}.article-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.info-panel{padding:24px;background:#EEF4FF;border-radius:14px}.faq-list details{border-bottom:1px solid #dce5f6;padding:16px 0}.faq-list summary{cursor:pointer;font-weight:700;color:#17213A}.faq-list p{margin:12px 0 0;color:#5F6B82}.footer{background:#101828;color:#D8E0F2;padding:44px 0 22px}.footer h3{color:#fff;font-size:16px}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:35px}.footer-grid a{display:block;font-size:14px;line-height:2.1}.footer-brand>a{display:inline-block;font-size:22px;color:#fff}.footer-brand p{font-size:14px;margin-top:13px;max-width:260px;color:#ccd6e8}.footer-bottom{border-top:1px solid #263449;margin-top:30px;padding-top:20px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:#c7d4e7}.menu-toggle,.mobile-drawer,.drawer-mask,.bottom-nav{display:none}.back-top{position:fixed;right:22px;bottom:22px;width:42px;height:42px;border:0;border-radius:50%;background:#315CFF;color:#fff;opacity:0;pointer-events:none;transition:opacity .2s}.back-top.show{opacity:1;pointer-events:auto}.slider{position:relative;margin-top:25px;background:#EEF4FF;border-radius:14px;overflow:hidden;max-height:320px}.slide{display:none}.slide.is-active{display:block}.slide .media{border-radius:0}.slide .media img{max-height:320px}.slide .media-placeholder{max-height:320px}.slider-btn{position:absolute;top:50%;transform:translateY(-50%);border:0;background:rgba(23,33,58,.60);color:white;width:38px;height:38px;border-radius:50%;font-size:24px;line-height:1;z-index:2}.slider-btn.prev{left:14px}.slider-btn.next{right:14px}.slider-dots{position:absolute;bottom:11px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:2}.slider-dots button{width:9px;height:9px;padding:0;border:0;border-radius:50%;background:#d4dff5;box-shadow:0 1px 2px #333}.slider-dots button.active{background:#315CFF}.intro-links{display:grid;grid-template-columns:1fr 1fr;gap:8px}.intro-links a{padding:11px 14px;border:1px solid #e2e8f4;border-radius:9px;font-size:14px}.small-note{color:#647088;font-size:13px}.horizontal-image{max-width:450px}.pill{display:inline-block;font-size:12px;padding:2px 8px;color:#315CFF;background:#EEF4FF;border-radius:20px}
@media(max-width:1100px){.main-nav{gap:15px}.topbar{gap:16px}}@media(max-width:980px){.wrap{padding:0 20px}.topbar{height:58px;justify-content:space-between}.brand{min-width:0;font-size:19px}.logo-box{height:28px}.main-nav{display:none}.menu-toggle{display:flex;flex-direction:column;gap:4px;justify-content:center;align-items:center;width:35px;height:38px;border:0;background:transparent;padding:0}.menu-toggle span{display:block;width:22px;height:2px;background:#17213A}.main-btn{height:36px;min-width:68px;padding:0 13px}.mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);height:100dvh;overflow-y:auto;background:#fff;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(16,24,40,.42);z-index:11000;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s ease,visibility .2s}.drawer-mask.is-visible{opacity:1;visibility:visible;pointer-events:auto}body.drawer-open{overflow:hidden}.drawer-head{height:60px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;border-bottom:1px solid #e8ecf4}.drawer-close{border:0;background:none;font-size:30px;color:#17213A}.drawer-group{padding:10px 18px;border-bottom:1px solid #f0f2f7}.drawer-group h3{font-size:13px;color:#315CFF;margin:8px 0}.drawer-group a{display:block;min-height:42px;padding:7px 3px;font-size:14px}.bottom-nav{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;bottom:0;left:0;right:0;height:60px;background:white;border-top:1px solid #e0e6f1;z-index:500}.bottom-nav a{display:flex;align-items:center;justify-content:center;font-size:14px}.bottom-nav a.active{color:#315CFF;font-weight:800}.footer{padding-bottom:83px}.back-top{bottom:77px}.cards,.tile-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.article-wrap{grid-template-columns:minmax(0,1fr);gap:15px}.sidebox{position:static}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.article-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){.wrap{padding:0 16px}.topbar{gap:8px}.subscroll{height:42px}.subscroll a{padding:0 12px;font-size:12px}.section{padding:30px 0}.page-hero{padding:30px 0 22px}.article-wrap{padding-top:27px;padding-bottom:37px}h1{font-size:27px}h2{font-size:21px}h3{font-size:17px}.lead,.page-hero p{font-size:15px}.two-col,.two-col.equal,.article-grid{grid-template-columns:1fr;gap:18px}.cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.tile-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.card{padding:14px}.card p{font-size:13px}.card-image{padding:0}.card-image .card-copy{padding:12px}.tile-grid .media,.tile-grid .media-placeholder{height:130px}.tile-grid .media img{max-height:130px}.slider,.slider .slide .media{max-height:200px}.slider .slide .media img{max-height:200px}.slider-btn{width:30px;height:30px;font-size:18px}.footer-grid{gap:20px}.footer-bottom{flex-direction:column;gap:7px}.intro-links{grid-template-columns:repeat(2,minmax(0,1fr))}.media-device img{max-height:260px}}
@media(max-width:360px){.brand{font-size:17px}.topbar{gap:5px}.cards{grid-template-columns:1fr}.main-btn{min-width:60px;padding:0 10px}.intro-links{grid-template-columns:1fr 1fr}.card h3{font-size:17px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}
