/* 南宫28 - standalone responsive styles, no external dependencies */
:root{--bg:#F6FBFF;--white:#fff;--light:#EFF8FF;--brand:#2AA9E0;--bright:#53C2F2;--deep:#244C78;--heading:#1C3552;--body:#31485F;--muted:#6B8299;--border:rgba(42,169,224,.16);--purple:#6B4FAF;--gold:#D9B15B;--footer:#16324F;--radius:13px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:130px}body{margin:0;background:var(--bg);color:var(--body);font:16px/1.8 Arial,"PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden}a{color:var(--deep);text-decoration:none}a:hover{color:var(--brand)}button{font:inherit;cursor:pointer}img{max-width:100%}.container{width:min(1160px,calc(100% - 48px));margin-inline:auto}.skip-link{position:absolute;left:12px;top:-80px;z-index:30000;padding:8px 15px;background:white}.skip-link:focus{top:12px}h1,h2,h3,p{margin-top:0}h1,h2,h3{color:var(--heading);line-height:1.38}p{margin-bottom:16px}.eyebrow{color:var(--purple);font-size:12px;letter-spacing:.12em;font-weight:700;text-transform:uppercase}.site-header{height:70px;background:var(--white);position:sticky;top:0;z-index:10000;box-shadow:0 2px 14px rgba(33,97,135,.06)}.topbar{height:100%;display:flex;align-items:center;gap:22px}.brand{flex:0 0 auto;display:flex;align-items:center;gap:8px;min-width:158px;color:var(--deep)}.brand-image{height:38px;max-width:88px;display:flex;align-items:center}.brand-image>img{max-height:38px;max-width:88px;object-fit:contain}.brand-image>.media-placeholder{width:34px;height:34px;border-radius:10px}.brand-text{display:flex;flex-direction:column;line-height:1.13}.brand-text b{font-size:20px;color:var(--purple)}.brand-text small{font-size:9px;letter-spacing:1px;color:var(--muted)}.desktop-nav{display:flex;align-items:stretch;justify-content:center;gap:16px;flex:1;align-self:stretch}.nav-link{display:inline-flex;align-items:center;position:relative;color:var(--deep);font-size:14px;white-space:nowrap}.nav-link.is-active{color:var(--brand);font-weight:700}.nav-link.is-active:after{content:"";position:absolute;bottom:0;left:0;right:0;height:2px;background:var(--brand)}.main-btn{display:inline-flex;align-items:center;justify-content:center;min-width:82px;height:40px;padding:0 18px;border-radius:999px;background:linear-gradient(135deg,#53C2F2 0%,#2AA9E0 55%,#6B4FAF 100%);color:#fff!important;font-weight:700;text-decoration:none;white-space:nowrap;font-size:14px;box-shadow:0 5px 14px rgba(42,169,224,.18)}.main-btn:hover{filter:brightness(.97)}.register-btn{flex:0 0 auto}.channel-bar{background:#EFF8FF;border-bottom:1px solid var(--border)}.channel-inner{height:44px;display:flex;align-items:center;gap:30px;overflow-x:auto;white-space:nowrap;scrollbar-width:none}.channel-inner::-webkit-scrollbar{display:none}.channel-link{flex:0 0 auto;color:#58718E;font-size:13px}.channel-link.is-active{font-weight:700;color:var(--brand)}.menu-toggle,.mobile-drawer,.drawer-mask,.mobile-bottom{display:none}.site-main{padding-top:28px;padding-bottom:65px;min-height:52vh}.hero{display:grid;grid-template-columns:1fr;gap:24px;padding:28px;background:linear-gradient(120deg,#fff 20%,#EDF9FF 100%);border:1px solid var(--border);border-radius:var(--radius)}.hero-copy{max-width:950px}.hero h1{font-size:36px;margin:6px 0 18px}.hero p{max-width:880px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}.outline-btn{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:5px 18px;border:1px solid rgba(42,169,224,.4);border-radius:50px;color:var(--deep);font-size:14px;font-weight:700;background:white}.section{margin-top:42px}.section-head{margin-bottom:19px}.section-head h2{font-size:25px;margin:0 0 5px}.section-head p{color:var(--muted);font-size:14px;margin:0}.card-grid{display:grid;gap:18px}.card-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.card-grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.card-grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}.feature-card{border:1px solid var(--border);border-radius:var(--radius);background:#fff;padding:24px;min-width:0;box-shadow:0 7px 20px rgba(30,96,146,.025)}.feature-card h3{font-size:19px;margin-bottom:10px}.feature-card p{font-size:15px;color:var(--body);line-height:1.8}.read-more{font-size:13px;color:var(--brand);font-weight:700}.split-feature{display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:30px;background:white;padding:26px;border:1px solid var(--border);border-radius:var(--radius)}.split-feature.reverse>div:first-child{order:2}.split-feature.reverse>.media{order:1}.split-feature h2,.mobile-feature h2{font-size:25px}.inline-links{display:flex;gap:10px;flex-wrap:wrap}.inline-links a{padding:6px 13px;background:var(--light);border-radius:20px;font-size:13px}.media{display:flex;align-items:center;justify-content:center;width:100%;overflow:hidden;border-radius:12px;background:#EFF8FF;border:1px solid var(--border)}.media img{display:block;width:auto;height:auto;max-width:100%;max-height:100%;object-fit:contain;object-position:center}.media-banner{aspect-ratio:16/7}.media-wide{aspect-ratio:16/9}.media-square{aspect-ratio:1/1}.media-device{aspect-ratio:9/16;max-width:230px;margin-inline:auto}.narrow-media{max-width:190px;margin:22px auto}.media-placeholder{width:100%;height:100%;background:linear-gradient(135deg,#EFF8FF,#E0F1FC 55%,#EDF0FF);position:relative}.media-placeholder:after{content:"";position:absolute;inset:22%;border:1px solid rgba(42,169,224,.1);border-radius:24px}.gallery-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.image-card{background:white;border:1px solid var(--border);border-radius:var(--radius);padding:16px;min-width:0}.image-card h2,.image-card h3{font-size:18px;margin:13px 0 7px}.image-card p{font-size:14px;color:var(--muted);margin:0}.more-line{margin:16px 0 0;font-weight:700}.news-list{border:1px solid var(--border);background:white;border-radius:var(--radius);padding:9px 22px}.news-list article{display:flex;gap:20px;align-items:flex-start;padding:17px 2px;border-bottom:1px solid var(--border)}.news-list article:last-child{border:0}.news-list .number{font-size:21px;color:var(--brand);font-weight:700;line-height:1.4;font-variant-numeric:tabular-nums}.news-list h3{font-size:17px;margin:0 0 4px}.news-list p{font-size:14px;margin:0;color:var(--muted)}.mobile-feature{display:grid;grid-template-columns:1fr 250px;gap:30px;align-items:center;padding:25px;background:white;border:1px solid var(--border);border-radius:var(--radius)}.mobile-feature .media{max-width:185px}.notice{background:#EDF7FE;border-left:4px solid var(--brand);padding:22px 27px;border-radius:var(--radius);margin-top:42px}.notice h2{font-size:21px}.notice p{font-size:15px}.notice>a{font-weight:700}.page-heading{padding:18px 4px 25px;max-width:940px}.page-heading h1{font-size:32px;margin:6px 0 14px}.page-heading .lead{font-size:16px;line-height:1.85;color:var(--body)}.page-heading+.media{max-width:850px;margin-bottom:30px}.article-layout{display:grid;grid-template-columns:minmax(0,800px) 270px;gap:40px;align-items:start}.long-article{min-width:0}.article-section{padding:24px 28px;margin-bottom:19px;border-radius:var(--radius);background:white;border:1px solid var(--border);max-width:820px}.article-section h2{font-size:23px;margin-bottom:14px}.article-section p{font-size:16px;line-height:1.85;margin-bottom:16px}.article-section p:last-child{margin-bottom:0}.side-panel{position:sticky;top:128px;padding:22px;background:var(--light);border-radius:var(--radius);border:1px solid var(--border)}.side-panel h2{font-size:19px}.side-panel ul{padding:0;list-style:none;margin:10px 0 15px}.side-panel li{border-bottom:1px solid var(--border);padding:9px 0}.side-tip{font-size:13px;color:var(--muted)}.related-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.related-links>div{padding:17px;background:white;border:1px solid var(--border);border-radius:var(--radius);display:flex;flex-direction:column}.related-links a{font-weight:700}.related-links span{font-size:13px;color:var(--muted)}.faq-list{max-width:940px;display:grid;gap:14px}.faq-item{padding:20px 24px;background:white;border:1px solid var(--border);border-radius:var(--radius)}.faq-item h2{font-size:18px;margin-bottom:10px}.faq-item p{font-size:15px;margin:0}.site-footer{background:#16324F;color:#E8F5FF;padding:48px 0 20px}.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:36px}.footer-grid h2{font-size:17px;color:#fff;margin:0 0 13px}.footer-grid p{font-size:14px;color:#D6E9F7}.footer-grid a{display:block;color:#E8F5FF;font-size:13px;margin-bottom:9px}.footer-grid a:hover{color:#8AE0FF}.footer-logo{max-width:90px;height:45px;margin-bottom:14px}.footer-logo img{width:auto;max-width:100%;max-height:45px;object-fit:contain}.footer-logo .media-placeholder{width:42px;height:42px;border-radius:10px}.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:18px;margin-top:25px;border-top:1px solid rgba(255,255,255,.14);font-size:13px}.footer-bottom p{margin:0;max-width:790px;text-align:right}.back-to-top{position:fixed;right:24px;bottom:26px;border:0;width:40px;height:40px;border-radius:50%;color:white;background:var(--brand);box-shadow:0 4px 20px rgba(10,70,110,.15);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s,visibility .2s;z-index:300}.back-to-top.is-visible{opacity:1;visibility:visible;pointer-events:auto}
@media(max-width:1100px){.desktop-nav{gap:11px}.nav-link{font-size:13px}.topbar{gap:14px}.brand{min-width:140px}.brand-text b{font-size:18px}.footer-grid{gap:23px}}
@media(max-width:980px){.site-header{height:58px}.topbar{justify-content:space-between;gap:10px}.desktop-nav{display:none}.brand{min-width:0;margin-right:auto}.brand-image{height:30px}.brand-image img{max-height:30px;max-width:66px}.brand-text b{font-size:17px}.brand-text small{font-size:8px}.register-btn{height:36px;min-width:68px;padding:0 14px;font-size:13px}.menu-toggle{width:38px;height:38px;border:0;background:transparent;display:flex;flex-direction:column;justify-content:center;gap:5px;padding:8px;flex:0 0 auto}.menu-toggle span{height:2px;width:22px;background:var(--deep);border-radius:3px}.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(28,73,114,.36);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-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px;background:#16324F}.drawer-brand{display:flex;flex-direction:column;line-height:1.3;color:white}.drawer-brand strong{font-size:19px}.drawer-brand small{font-size:9px;letter-spacing:1px;color:#D9B15B}.drawer-close{background:rgba(255,255,255,.12);border:0;color:white;font-size:27px;width:38px;height:38px;line-height:1;border-radius:8px}.drawer-group{padding:13px 18px 5px}.drawer-group h2{font-size:13px;color:var(--purple);margin:0 0 7px}.drawer-group nav{display:grid;grid-template-columns:1fr 1fr;gap:2px 10px}.drawer-group a{padding:8px 3px;border-bottom:1px solid var(--border);font-size:13px;color:var(--deep)}.drawer-group a[aria-current]{font-weight:700;color:var(--brand)}.mobile-bottom{height:60px;position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid var(--border);z-index:9000;display:grid;grid-template-columns:repeat(4,1fr);box-shadow:0 -4px 15px rgba(28,73,114,.04)}.mobile-bottom a{color:var(--muted);display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:12px;line-height:1.3}.mobile-bottom span{font-size:20px;line-height:1.1;margin-bottom:3px}.mobile-bottom a.is-active{color:var(--brand);font-weight:700}.site-main{padding-bottom:94px}.site-footer{padding-bottom:82px}.back-to-top{bottom:76px;right:13px}.article-layout{grid-template-columns:1fr;gap:10px}.side-panel{position:static}.side-panel ul{display:flex;gap:13px;flex-wrap:wrap}.side-panel li{border:0}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:768px){.container{width:calc(100% - 40px)}.card-grid.three,.card-grid.four{grid-template-columns:repeat(2,minmax(0,1fr))}.gallery-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero h1{font-size:29px}.split-feature,.mobile-feature{grid-template-columns:1fr}.split-feature.reverse>div:first-child,.split-feature.reverse>.media{order:initial}.section{margin-top:30px}.section-head h2,.split-feature h2{font-size:21px}.related-links{grid-template-columns:repeat(2,minmax(0,1fr))}.page-heading h1{font-size:27px}.article-section h2{font-size:21px}.mobile-feature .media{margin-inline:auto}}
@media(max-width:480px){.container{width:calc(100% - 32px)}body{font-size:15px}.site-main{padding-top:17px}.channel-inner{gap:23px}.brand-image{max-width:50px}.brand-image img{max-width:50px}.brand-text b{font-size:15px}.brand-text small{letter-spacing:0}.topbar{gap:6px}.menu-toggle{width:34px;padding:6px}.menu-toggle span{width:21px}.register-btn{min-width:61px;padding:0 12px}.hero{padding:18px;gap:18px}.hero h1{font-size:26px}.hero p,.lead{font-size:15px}.card-grid.three,.card-grid.four,.card-grid.two,.gallery-grid,.related-links{grid-template-columns:1fr}.feature-card{padding:19px}.split-feature,.mobile-feature{padding:18px}.article-section{padding:19px}.article-section p{font-size:15px}.page-heading{padding:10px 2px 18px}.page-heading h1{font-size:25px}.news-list{padding:5px 15px}.news-list article{gap:12px}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 18px}.footer-brand{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom p{text-align:left;margin-top:7px}.faq-item{padding:17px}.notice{padding:17px}}
@media(max-width:340px){.brand-image{display:none}.brand-text b{font-size:16px}.register-btn{min-width:57px}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}