*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#F4FBFF;color:#223044;font:16px/1.8 Arial,"PingFang SC","Microsoft YaHei",sans-serif}a{color:#0877C9;text-decoration:none}a:hover{color:#04588f}button{font:inherit;cursor:pointer}.wrap{width:min(1160px,calc(100% - 48px));margin-inline:auto;min-width:0}.site-header{background:#fff;position:sticky;top:0;z-index:30;box-shadow:0 1px 8px rgba(20,68,106,.08)}.header-row{height:70px;display:flex;align-items:center;gap:25px}.logo{display:flex;align-items:center;justify-content:center;flex-shrink:0;min-width:126px}.logo img{display:block;max-width:155px;max-height:38px;width:auto;height:auto;object-fit:contain}.logo strong{font-size:23px;letter-spacing:.02em;color:#0877C9}.logo span{color:#1CA8F6}.desktop-main{display:flex;align-items:center;gap:25px;margin:auto;white-space:nowrap}.desktop-main a{font-size:14px;color:#223044;padding:22px 0 18px;border-bottom:2px solid transparent}.desktop-main a.active,.desktop-main a:hover{color:#0877C9;border-bottom-color:#1CA8F6}.register{display:inline-flex;justify-content:center;align-items:center;height:41px;min-width:80px;padding:0 20px;background:#0877C9;border-radius:99px;color:white;font-size:14px;font-weight:bold;flex-shrink:0}.register:hover{background:#0664a8;color:white}.subnav{background:#EAF7FF}.subnav-scroll{height:45px;display:flex;align-items:center;gap:0;overflow-x:auto;white-space:nowrap;scrollbar-width:thin}.subnav a{color:#5F7082;padding:0 15px;font-size:14px;border-right:1px solid #d1e7f6}.subnav a:first-child{padding-left:0}.subnav a.active,.subnav a:hover{color:#0877C9}.hamburger{display:none}.site-footer{background:#082A46;color:#EAF8FF;margin-top:60px}.foot-grid{padding-block:50px;display:grid;grid-template-columns:1.7fr repeat(3,1fr);gap:35px}.foot-grid h2{font-size:16px;margin:0 0 14px}.foot-grid a{display:block;color:#d9f1ff;font-size:14px;margin:7px 0}.foot-grid .foot-brand{font-size:21px;font-weight:bold;color:white;margin:0}.foot-grid p{font-size:14px;color:#bdd7e7}.foot-bottom{padding:14px 0 25px;border-top:1px solid #25516b;font-size:12px;color:#d6e8f1}.bottom-nav{display:none}.drawer-mask,.mobile-drawer{display:none}.back-top{position:fixed;right:24px;bottom:24px;border:0;background:#0877C9;color:white;border-radius:50%;height:43px;width:43px;z-index:15;opacity:0;pointer-events:none;transition:.2s}.back-top.visible{opacity:1;pointer-events:auto}main.wrap{padding-top:32px}h1,h2,h3{color:#143c5a;line-height:1.38}h1{font-size:36px;margin:0 0 16px}h2{font-size:24px;margin:0 0 15px}h3{font-size:19px;margin:0 0 10px}p{margin:0 0 16px}.eyebrow{color:#0877C9;font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;margin-bottom:12px}.muted{color:#5F7082}.lead{font-size:17px;line-height:1.8;color:#475e70}.hero{display:grid;grid-template-columns:1.1fr 1fr;align-items:center;gap:36px;background:#fff;border:1px solid #e3eff7;border-radius:18px;padding:30px;margin-bottom:34px}.hero .media{max-height:290px}.hero-copy{min-width:0}.hero-links{display:flex;flex-wrap:wrap;gap:10px}.pill{display:inline-block;padding:7px 16px;border:1px solid #bcdff5;background:#eaf7ff;border-radius:50px;font-size:13px;font-weight:bold}.section{margin:36px 0 44px}.section-heading{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:18px}.section-heading h2{margin:0}.section-heading a{white-space:nowrap;font-size:14px}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}.card{background:#fff;border:1px solid #e2eff8;border-radius:13px;padding:22px;min-width:0}.card h3{margin-bottom:8px}.card p{font-size:14px;color:#5F7082;line-height:1.75}.card-link{font-size:14px;font-weight:bold}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px}.media{width:100%;min-width:0;max-width:100%;display:flex;justify-content:center;align-items:center;overflow:hidden;background:#EAF7FF;border-radius:12px}.media img{max-width:100%;max-height:100%;height:auto;width:auto;object-fit:contain;object-position:center;display:block}.media-placeholder{width:100%;height:100%;min-height:90px;background:linear-gradient(120deg,#eaf7ff,#dceffc)}.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-width:245px}.media-natural img{display:block;width:100%;height:auto;max-height:280px;object-fit:contain}.media-natural{min-height:130px}.visual-card .media{margin-bottom:12px}.visual-card{background:white;border:1px solid #e2eff8;padding:12px;border-radius:13px}.visual-card h3{font-size:16px;margin:8px 0}.visual-card p{font-size:13px;color:#5F7082}.feature{display:grid;grid-template-columns:1.1fr 1fr;gap:26px;align-items:center;background:#fff;border-radius:14px;border:1px solid #e2eff8;padding:25px}.feature.reverse{grid-template-columns:1fr 1fr}.feature.reverse .media{order:-1}.link-list{list-style:none;padding:0;margin:0}.link-list li{padding:13px 0;border-bottom:1px solid #e1edf4}.link-list li:last-child{border:0}.link-list strong{display:block}.link-list span{font-size:14px;color:#5F7082}.number-list{counter-reset:item;list-style:none;padding:0;margin:0}.number-list li{counter-increment:item;display:grid;grid-template-columns:42px 1fr;align-items:start;gap:12px;border-bottom:1px solid #e2eff8;padding:15px 0}.number-list li:before{content:counter(item,decimal-leading-zero);color:#0877C9;font-weight:700}.notice{background:#EAF7FF;border-left:3px solid #1CA8F6;padding:17px 21px;border-radius:0 12px 12px 0;margin:26px 0}.page-top{padding:25px 0 23px;border-bottom:1px solid #dcebf5;margin-bottom:30px}.page-top p{max-width:810px}.article-area{max-width:800px}.article-area h2{margin-top:36px}.article-area p{line-height:1.9}.article-block{background:#fff;border:1px solid #e1eef7;border-radius:14px;padding:26px;margin:20px 0}.related{margin:38px 0}.faq-list details{background:white;border:1px solid #dfecf6;border-radius:10px;padding:16px 18px;margin-bottom:12px}.faq-list summary{cursor:pointer;color:#143c5a;font-weight:700}.faq-list p{padding-top:10px;margin:0;color:#536e83}.brand-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px}.brand-card{padding:12px;background:white;border:1px solid #e2eff8;border-radius:12px}.brand-card .media{aspect-ratio:16/10}.brand-card strong{display:block;margin:9px 0 4px}.brand-card p{font-size:13px;color:#5F7082}.mobile-feature{display:grid;grid-template-columns:1.3fr .7fr;gap:30px;align-items:center}.mobile-feature .media{margin:auto}.tag{font-size:12px;color:#0877C9;font-weight:bold}
@media(max-width:980px){.wrap{width:calc(100% - 40px)}.header-row{height:59px;justify-content:space-between;gap:8px}.desktop-main{display:none}.hamburger{display:flex;flex-direction:column;justify-content:center;gap:4px;border:0;background:transparent;padding:10px;width:43px;flex-shrink:0}.hamburger span{height:2px;width:21px;background:#0877C9}.logo{min-width:0;margin:auto}.logo img{max-height:29px;max-width:155px}.logo strong{font-size:21px}.register{height:36px;min-width:76px;padding:0 13px}.drawer-mask{display:block;position:fixed;inset:0;background:rgba(8,42,70,.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}.mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);height:100dvh;overflow-y:auto;background:#fff;color:#223044;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}body.drawer-open{overflow:hidden}.drawer-top{padding:14px 17px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #dbeef8}.drawer-top button{border:0;background:none;font-size:29px;color:#0877C9}.drawer-home{display:block;padding:10px 18px}.drawer-group{padding:10px 17px}.drawer-group h2{font-size:14px;margin:6px 0;color:#0877C9}.drawer-group a{display:block;min-height:40px;padding:6px 10px;color:#223044;border-bottom:1px solid #eff6fc}.drawer-group a.active{color:#0877C9;font-weight:bold}.bottom-nav{display:flex;position:fixed;bottom:0;left:0;right:0;height:60px;background:#fff;z-index:20;border-top:1px solid #e1edf7;justify-content:space-around;align-items:center}.bottom-nav a{font-size:13px;font-weight:bold}body{padding-bottom:60px}.back-top{bottom:77px}.foot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.cards{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-4,.brand-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:650px){.wrap{width:calc(100% - 32px)}.hero,.feature,.feature.reverse,.mobile-feature{display:flex;flex-direction:column;gap:20px;padding:17px}.hero .media{order:-1;max-height:195px}.feature .media,.feature.reverse .media{order:-1}.hero h1,h1{font-size:27px}.page-top h1{font-size:26px}h2{font-size:21px}.grid-2{grid-template-columns:1fr}.hero-links{gap:7px}.pill{padding:5px 12px}.card{padding:17px}.section{margin:26px 0 34px}.foot-grid{gap:19px;padding-block:34px}.brand-grid{gap:10px}.article-block{padding:18px}.media-device{max-width:180px}.site-footer{margin-top:40px}}
@media(max-width:355px){.logo strong{font-size:17px}.logo img{max-width:116px}.register{min-width:65px;padding:0 10px}.cards{grid-template-columns:1fr}.brand-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}