/* 南宫28 - responsive editorial theme. Root-only static files. */
:root{--bg:#F6FBFF;--paper:#fff;--soft:#EFF8FF;--primary:#2AA9E0;--bright:#53C2F2;--navy:#244C78;--heading:#1C3552;--body:#31485F;--muted:#607B94;--purple:#6B4FAF;--gold:#D9B15B;--line:rgba(42,169,224,.16);--shadow:0 12px 34px rgba(31,85,131,.07)}
*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:0;background:var(--bg);font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--body);line-height:1.8;font-size:16px;overflow-x:hidden}a{color:var(--navy);text-decoration:none}a:hover{color:var(--primary)}a:focus-visible,button:focus-visible{outline:3px solid var(--gold);outline-offset:3px}button{font:inherit}.wrap{width:min(100% - 48px,1160px);margin-inline:auto}.site-header{background:#fff;position:sticky;top:0;z-index:1000;box-shadow:0 2px 12px rgba(30,91,135,.06)}.topbar{height:70px;display:flex;align-items:center;gap:22px}.brand{flex:none;display:flex;align-items:center;min-width:146px}.brand img{max-width:146px;height:38px;width:auto;object-fit:contain;object-position:left center}.brand-mark{color:var(--navy);font-size:23px;font-weight:800;line-height:1}.brand-mark em{font-style:normal;color:var(--purple);font-size:25px}.desktop-nav{display:flex;align-items:stretch;height:100%;gap:14px;min-width:0;flex:1;justify-content:center}.desktop-nav a{font-size:14px;font-weight:600;display:flex;align-items:center;white-space:nowrap;position:relative;color:var(--navy);padding:0 2px}.desktop-nav a.active,.desktop-nav a:hover{color:var(--primary)}.desktop-nav a.active::after{content:"";height:2px;position:absolute;bottom:0;left:0;right:0;background:var(--primary)}.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;font-weight:700;white-space:nowrap;box-shadow:0 5px 12px rgba(42,169,224,.17)}.main-btn:hover{color:#fff;filter:brightness(.95)}.channel-bar{background:var(--soft);border-bottom:1px solid var(--line)}.channel-scroll{display:flex;align-items:center;gap:26px;height:44px;overflow-x:auto;scrollbar-width:thin;white-space:nowrap}.channel-scroll a{font-size:14px;color:#58718E}.channel-scroll a.active,.channel-scroll a:hover{color:var(--primary);font-weight:700}.menu-trigger{display:none}.mobile-drawer,.drawer-mask{display:none}.skip-link{position:absolute;top:-100px;left:10px;background:#fff;padding:10px;z-index:20000}.skip-link:focus{top:5px}.main-content{padding-top:24px;padding-bottom:64px;min-height:60vh}h1,h2,h3{color:var(--heading);line-height:1.37;margin:0 0 15px;font-weight:750}h1{font-size:36px}h2{font-size:25px}h3{font-size:19px}p{margin:0 0 17px}p:last-child{margin-bottom:0}.eyebrow{font-size:12px;letter-spacing:.12em;font-weight:800;color:#5179AD;display:block;margin-bottom:13px}.lead{font-size:18px;color:var(--muted)}.hero{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--shadow)}.hero>.media{border-radius:0;max-height:280px}.hero-copy{padding:26px 32px 32px}.hero-copy h1{max-width:890px}.hero-copy p{max-width:1040px}.hero-actions{display:flex;gap:12px;margin-top:20px}.hero-actions a{border-radius:24px;padding:9px 22px;background:var(--primary);color:#fff;font-weight:700}.hero-actions a+ a{background:var(--soft);color:var(--navy)}.home-section{margin-top:43px}.section-head{margin-bottom:22px}.section-head p{color:var(--muted)}.tile-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.topic-tile{display:flex;flex-direction:column;justify-content:center;min-height:125px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:21px 23px;box-shadow:0 5px 20px rgba(34,95,135,.04);transition:transform .2s,border .2s}.topic-tile:hover{transform:translateY(-3px);border-color:var(--primary)}.topic-tile strong{font-size:19px;color:var(--heading);margin-bottom:7px}.topic-tile span{font-size:14px;color:var(--muted)}.split-section{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);align-items:center;gap:36px}.split-section.reverse{grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr)}.article-links{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.article-links a,.link-chips a{border:1px solid var(--line);background:#fff;border-radius:24px;padding:5px 14px;font-size:14px}.soft-panel{background:linear-gradient(140deg,#e8f7ff,#f5f2ff);padding:30px;border-radius:14px;border:1px solid var(--line)}.soft-panel ol{padding-left:22px;margin:0}.soft-panel li{margin-bottom:9px}.three-col{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.two-col{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.four-col{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.info-card,.small-service{background:#fff;border:1px solid var(--line);border-radius:14px;padding:23px;min-width:0}.info-card>a,.small-service>a{font-weight:700;color:var(--primary)}.info-card p{font-size:15px}.media{display:flex;align-items:center;justify-content:center;width:100%;overflow:hidden;border-radius:12px;background:var(--soft);border:1px solid var(--line)}.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:260px;margin-inline:auto}.media-placeholder{height:100%;width:100%;background:linear-gradient(135deg,#EAF7FF,#F5F1FF 85%);position:relative}.media-placeholder::after{content:"";position:absolute;inset:20%;border:1px solid rgba(42,169,224,.13);border-radius:22px}.image-preview-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.preview-card{background:#fff;border:1px solid var(--line);border-radius:13px;overflow:hidden}.preview-card .media{border:0;border-radius:0}.preview-card h3{font-size:16px;padding:14px 15px 0}.preview-card p{padding:0 15px 17px;font-size:14px;color:var(--muted)}.section-more{margin-top:20px;text-align:right;font-weight:700}.numbered-list{background:#fff;border:1px solid var(--line);border-radius:14px;padding:4px 24px}.numbered-list article{display:flex;gap:20px;padding:17px 0;border-bottom:1px solid var(--line)}.numbered-list article:last-child{border-bottom:0}.numbered-list h3{font-size:18px;margin-bottom:4px}.numbered-list p{font-size:14px;color:var(--muted)}.item-no{font-weight:800;font-size:22px;color:var(--primary)}.mobile-feature{display:grid;grid-template-columns:minmax(0,.55fr) minmax(0,1.45fr);gap:34px;align-items:center;background:#fff;border:1px solid var(--line);padding:25px 32px;border-radius:14px}.mobile-feature .media-device{max-width:200px}.small-service p{font-size:13px;color:var(--muted);margin-top:10px}.responsible-strip{margin-top:40px;background:#eaf6ff;border-left:4px solid var(--primary);padding:28px 32px;border-radius:0 13px 13px 0}.responsible-strip a{font-weight:700}.crumb{font-size:13px;color:var(--muted);margin-bottom:20px}.crumb span{padding:0 8px}.page-heading{padding:10px 0 24px}.page-heading h1{font-size:32px}.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;align-items:start;gap:34px;margin-top:26px}.article-body{min-width:0;background:#fff;border:1px solid var(--line);border-radius:14px;padding:30px 35px;font-size:16px;line-height:1.82}.article-body>p:first-child{font-size:17px;color:#3a5772}.reading-section{margin-top:28px}.reading-section h2{border-left:3px solid var(--primary);padding-left:13px;font-size:23px}.reading-section p{line-height:1.84}.sidebar{display:flex;flex-direction:column;gap:18px}.side-panel{background:#fff;border-radius:14px;border:1px solid var(--line);padding:22px}.side-panel h2{font-size:19px}.side-panel p,.side-panel li{font-size:14px}.side-panel ul{padding-left:18px;margin-bottom:0}.side-panel li{margin-bottom:6px}.side-panel>a{font-weight:700}.inline-links{border-top:1px solid var(--line);margin-top:32px;padding-top:22px}.inline-links h2{font-size:20px}.link-chips{display:flex;gap:8px;flex-wrap:wrap}.feature-media{max-width:360px;margin-bottom:22px}.feature-media .media-device{max-width:220px}.gallery-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.gallery-item{margin:0;border:1px solid var(--line);border-radius:12px;overflow:hidden}.gallery-item .media{border:none;border-radius:0}.gallery-item figcaption{display:grid;padding:12px 14px}.gallery-item figcaption span{font-size:13px;color:var(--muted)}.faq-item{border-top:1px solid var(--line);padding-top:14px;margin-top:14px}.faq-item h3{font-size:17px;margin-bottom:6px}.notice{padding:16px 20px;border-radius:9px;background:var(--soft);border-left:3px solid var(--primary)}.site-footer{background:#16324F;color:#E8F5FF;padding:42px 0 22px}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:35px}.footer-grid section{min-width:0}.footer-grid h2{color:#fff;font-size:17px;margin-bottom:15px}.footer-grid p{font-size:14px;color:#d8e8f6}.footer-grid a{display:block;color:#E8F5FF;font-size:14px;margin-bottom:7px}.footer-grid a:hover{color:#77d8ff}.footer-brand{min-height:44px}.footer-brand img{height:38px;max-width:146px;object-fit:contain}.footer-brand strong{font-size:23px;color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.15);margin-top:26px;padding-top:18px;display:flex;gap:20px;justify-content:space-between;font-size:12px;color:#d8e8f6}.mobile-bottom{display:none}
@media(max-width:1150px) and (min-width:981px){.topbar{gap:12px}.brand{min-width:120px}.brand img{max-width:122px}.desktop-nav{gap:10px}.desktop-nav a{font-size:13px}.register-btn{min-width:72px;padding:0 14px}}
@media(max-width:980px){.wrap{width:calc(100% - 40px)}.site-header .topbar{height:58px;justify-content:space-between;gap:10px}.desktop-nav{display:none}.menu-trigger{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;width:38px;height:38px;cursor:pointer;border:0;background:transparent;padding:7px;flex:none}.menu-trigger span{height:2px;width:22px;background:var(--navy);border-radius:2px}.brand{min-width:0;flex:0 1 auto;margin:auto}.brand img{height:29px;max-width:120px}.brand-mark{font-size:20px}.brand-mark em{font-size:21px}.register-btn{height:36px;min-width:68px;padding:0 14px;font-size:14px}.mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);height:100vh;height:100dvh;overflow-y:auto;overscroll-behavior:contain;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(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-head{background:#16324F;color:white;padding:17px 18px;display:flex;justify-content:space-between;align-items:center}.drawer-head strong{font-size:17px}.drawer-close{color:#fff;background:transparent;border:0;font-size:28px;line-height:1.1;cursor:pointer;padding:0 8px}.drawer-group{padding:16px 18px 8px;border-bottom:1px solid var(--line)}.drawer-group h2{font-size:14px;color:var(--muted);margin-bottom:9px}.drawer-links{display:grid;grid-template-columns:1fr 1fr;gap:2px 10px}.drawer-links a{font-size:14px;display:block;padding:7px 0}.drawer-links a.active{color:var(--primary);font-weight:700}.mobile-bottom{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;bottom:0;left:0;right:0;z-index:1000;background:#fff;border-top:1px solid var(--line);height:60px;padding-bottom:env(safe-area-inset-bottom);height:calc(60px + env(safe-area-inset-bottom))}.mobile-bottom a{display:flex;justify-content:center;align-items:center;font-size:14px;font-weight:700}.mobile-bottom a.active{color:var(--primary)}.main-content{padding-bottom:100px}.footer-bottom{padding-bottom:70px}.content-layout{grid-template-columns:minmax(0,1fr) 230px;gap:22px}.article-body{padding:24px}.footer-grid{gap:24px}.image-preview-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:767px){body{font-size:15px}.wrap{width:calc(100% - 32px)}.main-content{padding-top:18px}.hero-copy{padding:21px}.hero-copy h1{font-size:27px}.hero-copy p{font-size:15px}.hero>.media{max-height:240px}.home-section{margin-top:29px}.section-head{margin-bottom:17px}h2{font-size:21px}h3{font-size:17px}.tile-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.topic-tile{min-height:112px;padding:16px}.topic-tile strong{font-size:17px}.topic-tile span{font-size:13px}.split-section,.split-section.reverse,.mobile-feature{grid-template-columns:minmax(0,1fr);gap:20px}.three-col,.two-col{grid-template-columns:minmax(0,1fr);gap:12px}.four-col{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.mobile-feature{padding:20px}.mobile-feature .media-device{max-width:180px}.page-heading h1{font-size:26px}.lead{font-size:16px}.content-layout{grid-template-columns:1fr;gap:16px}.article-body{font-size:15px;padding:22px 18px}.article-body>p:first-child{font-size:16px}.reading-section h2{font-size:20px}.sidebar{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.side-panel{padding:16px}.side-panel h2{font-size:17px}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:25px}.footer-bottom{display:block;font-size:12px}.footer-bottom span{display:block;margin-bottom:8px}.responsible-strip{padding:20px}.gallery-grid{grid-template-columns:1fr 1fr}}
@media(max-width:430px){.brand img{max-width:105px}.brand-mark{font-size:18px}.brand-mark em{font-size:19px}.hero-copy h1{font-size:25px}.hero-actions a{padding:7px 15px}.section-head h2{font-size:20px}.tile-grid{gap:9px}.topic-tile{min-height:102px;padding:12px}.topic-tile strong{font-size:16px}.topic-tile span{font-size:12px}.image-preview-grid{gap:10px}.preview-card h3{font-size:14px}.preview-card p{font-size:12px}.numbered-list{padding:5px 14px}.numbered-list article{gap:12px}.numbered-list h3{font-size:16px}.gallery-grid,.sidebar{grid-template-columns:1fr}.footer-grid{gap:18px}.footer-grid h2{font-size:15px}}
@media(max-width:350px){.brand img{max-width:90px}.topbar{gap:5px!important}.register-btn{min-width:60px;padding:0 10px}.hero-copy{padding:16px}.tile-grid{grid-template-columns:1fr 1fr}.topic-tile span{line-height:1.5}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important}}