:root{--bg:#EAF2FB;--white:#fff;--light:#F7FBFF;--soft:#EDF5FF;--blue:#137CD8;--sky:#2FA8F7;--ink:#24364F;--muted:#5D718A;--border:rgba(47,168,247,.14)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.8 Arial,"PingFang SC","Microsoft YaHei",sans-serif}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}button{font:inherit;cursor:pointer}img{max-width:100%}.wrap{width:min(100% - 48px,1160px);margin-inline:auto}.skip-link{position:absolute;top:-80px;left:12px;z-index:13000;background:#fff;padding:8px}.skip-link:focus{top:8px}.site-header{position:sticky;top:0;background:#fff;z-index:1000;box-shadow:0 1px 8px #23446a16}.topbar{height:70px;display:flex;align-items:center;gap:22px;min-width:0}.brand{flex:0 0 auto;display:flex;align-items:center;gap:9px;color:var(--blue);font-weight:800;white-space:nowrap}.brand .media{width:40px;height:38px;min-width:40px;background:transparent;border-radius:0}.brand .media img{max-height:38px}.brand .media-placeholder{background:var(--soft);border-radius:8px;width:36px;height:36px}.brand-text{font-size:20px;line-height:1.1}.brand-text small{display:block;font-size:9px;letter-spacing:.7px;color:var(--muted);margin-top:4px}.main-nav{display:flex;align-items:stretch;gap:20px;height:100%;margin-left:auto;white-space:nowrap;min-width:0}.nav-link{display:flex;align-items:center;border-bottom:2px solid transparent;color:var(--ink);font-size:14px}.nav-link.is-active,.nav-link:hover{color:var(--blue);border-bottom-color:var(--blue);text-decoration:none}.register,.btn{flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;min-height:41px;border-radius:999px;background:#137CD8;color:white;padding:6px 21px;font-size:14px;font-weight:700}.register:hover,.btn:hover{background:#0862b3;color:white;text-decoration:none}.subbar{background:var(--light);border-top:1px solid var(--border)}.sub-inner{height:44px;display:flex;align-items:center;gap:0;overflow-x:auto;scrollbar-width:thin;white-space:nowrap}.sub-link{color:var(--muted);font-size:13px;line-height:1;padding:0 19px;border-right:1px solid #d9e6f3}.sub-link:first-child{padding-left:0}.sub-link:last-child{border:0}.sub-link.is-active,.sub-link:hover{color:var(--blue)}.site-main{padding-top:34px;padding-bottom:60px;min-height:60vh}.panel,.card,.article-card{background:#fff;border:1px solid var(--border);border-radius:12px}.panel{padding:30px}.eyebrow{color:var(--blue);font-weight:700;letter-spacing:.07em;font-size:13px}.hero{display:grid;grid-template-columns:minmax(0,54fr) minmax(0,46fr);align-items:center;gap:26px;padding:30px}.hero-copy{min-width:0}.hero h1{font-size:37px;line-height:1.36;margin:12px 0 15px;color:#183e66}.hero p,.lead{font-size:16px;color:var(--muted);line-height:1.83}.hero-visual{min-width:0}.hero-visual .media{max-height:295px}.hero-links{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.hero-links a{font-size:14px;font-weight:700;background:var(--light);border:1px solid var(--border);border-radius:999px;padding:6px 14px}.section-block{margin-top:38px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:15px;margin-bottom:18px}.section-head h2{margin:0;font-size:25px;line-height:1.35;color:#173f68}.section-head p{margin:6px 0 0;color:var(--muted);font-size:14px}.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.card{padding:22px;min-width:0}.card h3{margin:0 0 8px;color:#183e66;font-size:18px}.card p{margin:0 0 13px;color:var(--muted);font-size:15px}.card a{font-weight:700;font-size:14px}.split{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}.split.equal{grid-template-columns:1fr 1fr}.article-card{padding:26px}.article-card h3{font-size:20px;margin:0 0 12px;color:#173f68}.article-card p{color:var(--muted);margin:0 0 16px}.link-list{list-style:none;padding:0;margin:0}.link-list li{padding:11px 0;border-bottom:1px solid var(--border)}.link-list li:last-child{border-bottom:0}.news-number{display:inline-block;min-width:37px;color:#2d98e4;font-weight:700}.media{display:flex;justify-content:center;align-items:center;width:100%;max-width:100%;min-width:0;overflow:hidden;border-radius:12px;background:var(--soft)}.media img{display:block;width:auto;height:auto;max-width:100%;max-height:100%;object-fit:contain;object-position:center}.media-placeholder{width:100%;height:100%;min-height:80px;background:linear-gradient(140deg,#edf5ff,#e3f0fd)}.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 img{width:100%;height:auto;max-height:280px;object-fit:contain;margin:0 auto}.media-natural{max-height:280px}.poster-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.poster-grid figure,.brand-grid figure{margin:0}.poster-grid figcaption,.brand-grid figcaption{font-size:13px;color:var(--muted);margin-top:9px;line-height:1.6}.poster-grid .media{max-height:190px}.brand-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.brand-item{background:#fff;border:1px solid var(--border);border-radius:12px;padding:16px;min-width:0}.brand-item .media{height:116px;aspect-ratio:auto}.brand-item .media-placeholder{min-height:100px}.brand-item strong{display:block;margin-top:9px;color:#173f68}.brand-item p{font-size:13px;color:var(--muted);line-height:1.7;margin:7px 0 0}.image-caption{font-size:13px;color:var(--muted);line-height:1.65;margin:10px 0 0}.page-header{background:#fff;border:1px solid var(--border);border-radius:12px;padding:30px;margin-bottom:18px}.page-header h1{font-size:32px;line-height:1.4;margin:8px 0 12px;color:#183e66}.page-header .lead{margin:0;max-width:820px}.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:7px}.breadcrumb a{color:var(--muted)}.inner-layout{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:18px;align-items:start}.prose{padding:30px;min-width:0}.prose p{line-height:1.85;margin:0 0 16px}.article-section{padding-bottom:24px;margin-bottom:24px;border-bottom:1px solid var(--border)}.article-section:last-child{border:0;margin-bottom:0;padding-bottom:0}.article-section h2{font-size:23px;margin:0 0 12px;color:#173f68;line-height:1.45}.article-section p{line-height:1.85;margin:0;color:#31435a}.aside{padding:23px}.aside h2{font-size:18px;margin:0 0 10px}.aside a{display:block;padding:9px 0;border-bottom:1px solid var(--border);font-size:14px}.aside a:last-child{border-bottom:none}.related{margin-top:20px;padding:25px}.related h2{font-size:20px;margin:0 0 15px}.related-links{display:flex;gap:12px;flex-wrap:wrap}.related a{background:var(--light);border-radius:6px;padding:7px 13px;font-size:14px}.faq-list details{padding:14px 0;border-bottom:1px solid var(--border)}.faq-list summary{font-weight:700;color:#173f68;cursor:pointer}.faq-list p{margin:10px 0 0;color:var(--muted)}.notice-bar{padding:22px 25px;background:var(--light);border-radius:12px;margin-top:22px}.notice-bar p{margin:0}.mobile-callout{display:grid;grid-template-columns:1fr 290px;gap:24px;align-items:center}.mobile-callout .media{max-height:320px}.footer{background:#102B46;color:#EAF6FF}.footer-grid{padding-top:40px;padding-bottom:30px;display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:24px}.footer-column h3{font-size:16px;margin:0 0 15px;color:#fff}.footer-column a{display:block;color:#d5e8f7;margin-bottom:9px;font-size:14px}.footer-column p{color:#d5e8f7;font-size:14px}.footer-brand{display:flex!important;align-items:center;gap:10px;font-size:18px!important;color:white!important}.footer-brand .media{width:44px;height:42px;background:transparent}.footer-brand .media img{max-height:42px}.footer-bottom{border-top:1px solid #ffffff24;padding:17px 0 24px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:13px;color:#d5e8f7}.footer-bottom p{margin:0}.menu-toggle,.mobile-bottom,.drawer-mask,.mobile-drawer{display:none}.to-top{position:fixed;right:20px;bottom:24px;background:#137CD8;color:#fff;border:0;border-radius:50%;width:42px;height:42px;opacity:0;pointer-events:none;transition:opacity .2s;z-index:800}.to-top.show{opacity:1;pointer-events:auto}
@media(max-width:1100px){.main-nav{gap:13px}.topbar{gap:15px}.brand-text{font-size:18px}.nav-link{font-size:13px}}
@media(max-width:980px){.wrap{width:min(100% - 40px,1160px)}.topbar{height:58px;justify-content:space-between;gap:8px}.main-nav{display:none}.menu-toggle{display:flex;flex:0 0 38px;height:38px;border:0;background:transparent;padding:8px;flex-direction:column;justify-content:space-around;align-items:center}.menu-toggle span{display:block;width:22px;height:2px;background:#24364F;border-radius:3px}.brand{position:absolute;left:50%;transform:translateX(-50%);gap:6px}.brand .media{width:32px;height:30px;min-width:32px}.brand .media img{max-height:30px}.brand-text{font-size:17px}.brand-text small{font-size:8px}.register{margin-left:auto;min-height:36px;padding:4px 12px;font-size:13px}.mobile-bottom{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));position:fixed;bottom:0;left:0;right:0;height:60px;z-index:900;background:white;box-shadow:0 -2px 12px #102b4614;padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:14px}.mobile-bottom a.is-active{color:var(--blue);font-weight:700}.footer{padding-bottom:68px}.site-main{padding-bottom:46px}.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;padding-bottom:25px}.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-top{display:flex;align-items:center;justify-content:space-between;padding:15px 17px;border-bottom:1px solid var(--border)}.drawer-top strong{font-size:16px;color:var(--blue)}.drawer-close{border:0;background:var(--light);border-radius:8px;font-size:26px;width:38px;height:38px;line-height:1}.drawer-group{padding:15px 17px 0}.drawer-group h3{font-size:13px;color:var(--muted);margin:0 0 5px}.drawer-link{display:block;color:var(--ink);min-height:42px;padding:7px 10px;border-radius:7px;font-size:15px}.drawer-link.is-active{color:var(--blue);background:var(--light)}.to-top{bottom:78px}}
@media(max-width:768px){.hero{grid-template-columns:1fr;gap:15px}.hero-visual{order:-1}.hero .media{max-height:190px}.hero h1{font-size:29px}.card-grid,.brand-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.poster-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.split,.split.equal,.inner-layout{grid-template-columns:1fr}.mobile-callout{grid-template-columns:1fr}.mobile-callout>.media{order:-1}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.page-header h1{font-size:28px}.aside{display:none}}
@media(max-width:520px){.wrap{width:calc(100% - 32px)}.site-main{padding-top:22px}.panel,.page-header{padding:20px}.hero h1{font-size:27px}.hero p{font-size:15px}.section-block{margin-top:27px}.section-head h2{font-size:21px}.card-grid{gap:11px}.card{padding:15px}.card h3{font-size:16px}.card p{font-size:14px}.card a{font-size:13px}.article-card,.prose{padding:20px}.article-section h2{font-size:21px}.page-header h1{font-size:25px}.poster-grid,.brand-grid{gap:10px}.brand-item{padding:11px}.brand-item .media{height:95px}.footer-grid{gap:19px}.footer-bottom{display:block}.footer-bottom p+p{margin-top:9px}.hero-visual .media{max-height:185px}.poster-grid .media{max-height:145px}}
@media(max-width:360px){.brand-text{font-size:14px}.brand-text small{font-size:7px}.brand .media{width:26px;height:27px;min-width:26px}.register{padding:4px 9px;font-size:12px}.menu-toggle{flex-basis:32px}.topbar{gap:3px}.card-grid{grid-template-columns:1fr 1fr}.card{padding:12px}.card p{font-size:13px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important}}