#youzhong-hub {
 --yh-bg:light-dark(#fff,#121c2d);--yh-soft:light-dark(#f5f8fc,#18253b);--yh-text:light-dark(#14253e,#e9f1ff);--yh-muted:light-dark(#63758e,#b0bfd6);--yh-line:light-dark(#e0e8f1,#344760);--yh-blue:light-dark(#225af2,#9bbcff);--yh-button:light-dark(#225af2,#8db4ff);--yh-onbutton:light-dark(#fff,#142b50);--yh-pale:light-dark(#eaf1ff,#253e65);--yh-deep:light-dark(#12264c,#07132a);--yh-ondeep:light-dark(#eef4ff,#e1ecff);--yh-shadow:light-dark(#1c4b9e12,#00000025);--yh-round:14px;
 background:var(--yh-bg);color:var(--yh-text);font:14px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;text-align:left;border-radius:12px;overflow:hidden;overflow-wrap:anywhere;
}
#youzhong-hub *{box-sizing:border-box}#youzhong-hub [hidden]{display:none!important}
#youzhong-hub h1,#youzhong-hub h2,#youzhong-hub h3,#youzhong-hub p{margin:0;color:inherit}
#youzhong-hub button,#youzhong-hub a{font:inherit}#youzhong-hub a{color:var(--yh-blue);text-decoration:none}
#youzhong-hub button{cursor:pointer}#youzhong-hub .yh-wrap{max-width:1120px;padding-inline:38px;margin:auto}
#youzhong-hub .yh-preview{display:flex;justify-content:space-between;gap:14px;padding:8px 22px;background:var(--yh-soft);color:var(--yh-muted);font-size:11px;border-bottom:1px solid var(--yh-line)}
#youzhong-hub .yh-header{display:flex;align-items:center;gap:24px;min-height:84px}
#youzhong-hub .yh-logo{display:flex;align-items:center;gap:9px;flex-shrink:0}
#youzhong-hub .yh-symbol{width:35px;height:39px;border-radius:9px 9px 13px 13px;background:var(--yh-button);color:var(--yh-onbutton);display:grid;place-items:center;font-weight:750;font-size:25px;line-height:1}
#youzhong-hub .yh-logo strong{font-size:22px;font-weight:750;letter-spacing:-.04em}
#youzhong-hub .yh-nav{display:flex;align-items:center;gap:20px;margin-left:auto}
#youzhong-hub .yh-nav a{border:0;background:none;color:var(--yh-muted);padding:12px 0;white-space:nowrap;font-size:13px}
#youzhong-hub .yh-nav a[aria-current="page"]{color:var(--yh-blue);box-shadow:0 2px 0 var(--yh-blue)}
#youzhong-hub .yh-actions{display:flex;gap:8px;align-items:center}
#youzhong-hub .yh-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;border:1px solid var(--yh-button);padding:10px 19px;background:var(--yh-button);color:var(--yh-onbutton);border-radius:7px;font-size:13px;font-weight:600;white-space:nowrap;text-decoration:none}
#youzhong-hub .yh-button:hover{filter:brightness(.96)}#youzhong-hub .yh-button.secondary{background:var(--yh-bg);border-color:var(--yh-line);color:var(--yh-text)}
#youzhong-hub .yh-button.ghost{background:transparent;border-color:transparent;color:var(--yh-blue);padding-inline:8px}
#youzhong-hub .yh-button svg{width:16px;height:16px}
#youzhong-hub .yh-hero{background:radial-gradient(ellipse at 83% 50%,var(--yh-pale),transparent 58%),linear-gradient(115deg,var(--yh-soft),var(--yh-bg));border-block:1px solid var(--yh-line)}
#youzhong-hub .yh-hero-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:34px;align-items:center;padding-block:61px 57px}
#youzhong-hub .yh-eyebrow{display:flex;align-items:center;gap:9px;font-size:11px;font-weight:600;letter-spacing:.11em;color:var(--yh-blue);margin-bottom:17px}
#youzhong-hub .yh-eyebrow::before{content:"";width:22px;height:2px;background:var(--yh-blue)}
#youzhong-hub h1{font-size:clamp(32px,4.3vw,48px);line-height:1.24;letter-spacing:-.055em;font-weight:750}
#youzhong-hub h1 em{display:block;color:var(--yh-blue);font-style:normal;margin-top:8px}
#youzhong-hub .yh-lead{color:var(--yh-muted);font-size:14px;line-height:1.95;margin-top:22px;max-width:470px}
#youzhong-hub .yh-hero-cta{display:flex;flex-wrap:wrap;gap:11px;margin-top:26px}
#youzhong-hub .yh-hero-price{display:flex;align-items:baseline;gap:6px;margin-top:22px;color:var(--yh-muted);font-size:12px}
#youzhong-hub .yh-hero-price strong{font-size:28px;line-height:1.2;color:var(--yh-text);font-weight:650;letter-spacing:-.03em}
#youzhong-hub .yh-hero-price span:last-child{border-left:1px solid var(--yh-line);margin-left:8px;padding-left:14px;font-size:11px}
#youzhong-hub .yh-network{background:var(--yh-bg);border:1px solid var(--yh-line);border-radius:20px;padding:23px;box-shadow:0 20px 50px var(--yh-shadow);transform:rotate(-2deg)}
#youzhong-hub .yh-network-head{display:flex;justify-content:space-between;gap:12px;color:var(--yh-muted);font-size:11px;border-bottom:1px solid var(--yh-line);padding-bottom:13px}
#youzhong-hub .yh-network-head strong{font-size:13px;color:var(--yh-text);font-weight:600}
#youzhong-hub .yh-network-center{width:91px;height:91px;margin:26px auto 0;background:var(--yh-pale);border:1px solid color-mix(in srgb,var(--yh-blue) 25%,var(--yh-line));border-radius:22px;display:grid;place-items:center;color:var(--yh-blue);font-size:32px;font-weight:700;box-shadow:0 0 0 9px var(--yh-soft)}
#youzhong-hub .yh-network-line{height:30px;width:50%;margin:0 auto;border-inline:1px solid var(--yh-line);border-top:1px solid var(--yh-line);position:relative;top:23px}
#youzhong-hub .yh-network-line::before{content:"";position:absolute;height:23px;left:50%;top:-24px;border-left:1px solid var(--yh-line)}
#youzhong-hub .yh-network-ends{display:grid;grid-template-columns:1fr 1fr;gap:13px;margin-top:22px}
#youzhong-hub .yh-network-end{background:var(--yh-soft);border-radius:9px;padding:15px 12px;text-align:center}
#youzhong-hub .yh-network-end b{display:block;font-size:13px;font-weight:600}#youzhong-hub .yh-network-end small{display:block;font-size:11px;color:var(--yh-muted);margin-top:4px}
#youzhong-hub .yh-network-bottom{display:flex;justify-content:space-around;gap:8px;margin-top:17px;color:var(--yh-muted);font-size:11px}
#youzhong-hub .yh-section{padding-block:45px}#youzhong-hub .yh-section.alt{background:var(--yh-soft);border-block:1px solid var(--yh-line)}
#youzhong-hub .yh-section-title{display:flex;justify-content:space-between;gap:20px;align-items:flex-end;margin-bottom:24px}
#youzhong-hub h2{font-size:25px;line-height:1.45;font-weight:700;letter-spacing:-.035em}
#youzhong-hub .yh-section-title p{color:var(--yh-muted);font-size:12px;margin-top:7px}
#youzhong-hub .yh-textlink{background:none;border:0;padding:0;color:var(--yh-blue);font-size:12px;white-space:nowrap}
#youzhong-hub .yh-features{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
#youzhong-hub .yh-feature{display:flex;gap:14px;align-items:flex-start}
#youzhong-hub .yh-number{display:grid;place-items:center;flex:0 0 36px;width:36px;height:36px;background:var(--yh-pale);color:var(--yh-blue);border-radius:9px;font-size:14px;font-weight:600}
#youzhong-hub .yh-feature h3{font-size:15px;font-weight:600;margin-bottom:6px}#youzhong-hub .yh-feature p{color:var(--yh-muted);font-size:12px;line-height:1.85}
#youzhong-hub .yh-prices{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
#youzhong-hub .yh-price{padding:22px 19px 18px;background:var(--yh-bg);border:1px solid var(--yh-line);border-radius:var(--yh-round);display:flex;flex-direction:column}
#youzhong-hub .yh-price.primary{border-color:color-mix(in srgb,var(--yh-blue) 50%,var(--yh-line))}
#youzhong-hub .yh-price .yh-small{font-size:11px;color:var(--yh-muted)}#youzhong-hub .yh-price h3{font-size:15px;font-weight:650;margin-top:5px}
#youzhong-hub .yh-price-value{display:flex;align-items:baseline;gap:4px;font-size:12px;color:var(--yh-muted);margin-top:20px}
#youzhong-hub .yh-price-value strong{font-size:34px;line-height:1.1;color:var(--yh-text);font-weight:650;letter-spacing:-.05em}
#youzhong-hub .yh-price del{font-size:11px;color:var(--yh-muted);margin-top:7px}#youzhong-hub .yh-price p{font-size:12px;color:var(--yh-muted);margin-top:17px;line-height:1.85;flex:1}
#youzhong-hub .yh-price .yh-button{width:100%;margin-top:18px;font-size:12px;padding-inline:7px;min-height:39px}
#youzhong-hub .yh-source{font-size:11px;color:var(--yh-muted);margin-top:16px;line-height:1.85}
#youzhong-hub .yh-region-teaser{display:grid;grid-template-columns:1.1fr 1fr;gap:34px;align-items:center;border-radius:18px;padding:32px;background:var(--yh-deep);color:var(--yh-ondeep)}
#youzhong-hub .yh-region-teaser p{font-size:13px;line-height:1.9;margin-top:13px;opacity:.85}
#youzhong-hub .yh-region-teaser .yh-button{margin-top:19px}
#youzhong-hub .yh-region-letters{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
#youzhong-hub .yh-region-letter{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px 8px;border-radius:12px;border:1px solid color-mix(in srgb,var(--yh-ondeep) 20%,transparent);background:color-mix(in srgb,var(--yh-ondeep) 5%,transparent)}
#youzhong-hub .yh-region-letter strong{font-size:40px;font-weight:500;line-height:1.1}#youzhong-hub .yh-region-letter span{font-size:11px;opacity:.8;margin-top:10px}
#youzhong-hub .yh-article-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}
#youzhong-hub .yh-article{display:flex;flex-direction:column;border:1px solid var(--yh-line);border-radius:var(--yh-round);padding:23px;background:var(--yh-bg);color:var(--yh-text);min-height:188px}
#youzhong-hub .yh-article:hover{border-color:var(--yh-blue)}#youzhong-hub .yh-article-tag{font-size:11px;color:var(--yh-blue);margin-bottom:12px}
#youzhong-hub .yh-article h3{font-size:16px;line-height:1.6;font-weight:600}#youzhong-hub .yh-article p{font-size:12px;line-height:1.85;color:var(--yh-muted);margin-top:9px;flex:1}
#youzhong-hub .yh-article-end{display:flex;justify-content:space-between;gap:8px;color:var(--yh-blue);font-size:11px;margin-top:19px}
#youzhong-hub .yh-faq{display:grid;grid-template-columns:1fr 1fr;gap:0 30px}#youzhong-hub .yh-faq details{border-bottom:1px solid var(--yh-line);align-self:start}
#youzhong-hub .yh-faq summary{font-size:13px;padding:17px 0;font-weight:500}#youzhong-hub .yh-faq p{font-size:12px;line-height:1.9;color:var(--yh-muted);padding-bottom:17px}
#youzhong-hub .yh-bottom-cta{display:flex;align-items:center;justify-content:space-between;gap:25px;border-top:1px solid var(--yh-line);padding-block:28px}
#youzhong-hub .yh-bottom-cta strong{font-size:20px;font-weight:650}#youzhong-hub .yh-bottom-cta p{font-size:12px;color:var(--yh-muted);margin-top:5px}
#youzhong-hub .yh-footer{background:var(--yh-soft);border-top:1px solid var(--yh-line);padding-block:25px;color:var(--yh-muted);font-size:11px}
#youzhong-hub .yh-footer-head{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:13px}#youzhong-hub .yh-footer strong{font-size:15px;color:var(--yh-text);font-weight:650}
#youzhong-hub .yh-footer-links{display:flex;gap:20px;flex-wrap:wrap}#youzhong-hub .yh-footer p{line-height:1.9}
#youzhong-hub .yh-subhero{background:var(--yh-soft);border-block:1px solid var(--yh-line);padding-block:34px}
#youzhong-hub .yh-crumb{font-size:11px;color:var(--yh-muted);margin-bottom:16px}#youzhong-hub .yh-crumb a{font-size:11px;color:var(--yh-blue);padding:0;border:0;background:none}
#youzhong-hub .yh-subhero h1{font-size:34px}#youzhong-hub .yh-subhero p{font-size:13px;color:var(--yh-muted);max-width:750px;line-height:1.9;margin-top:14px}
#youzhong-hub .yh-zone-tabs{display:flex;gap:10px;margin-bottom:20px;flex-wrap:wrap}
#youzhong-hub .yh-zone-tabs button{padding:11px 22px;border:1px solid var(--yh-line);background:var(--yh-bg);color:var(--yh-muted);border-radius:8px;font-size:13px;min-height:43px}
#youzhong-hub .yh-zone-tabs button[aria-pressed="true"]{background:var(--yh-button);color:var(--yh-onbutton);border-color:var(--yh-button)}
#youzhong-hub .yh-zone-panel{display:grid;grid-template-columns:.8fr 1.4fr;gap:28px;padding:30px;border:1px solid var(--yh-line);border-radius:16px;background:var(--yh-bg)}
#youzhong-hub .yh-zone-main{border-right:1px solid var(--yh-line);padding-right:24px}#youzhong-hub .yh-zone-main h2{font-size:24px}
#youzhong-hub .yh-zone-main p{color:var(--yh-muted);font-size:12px;margin-top:8px}#youzhong-hub .yh-zone-price{font-size:13px;color:var(--yh-muted);margin-top:22px}
#youzhong-hub .yh-zone-price strong{font-size:42px;letter-spacing:-.04em;font-weight:650;color:var(--yh-blue)}
#youzhong-hub .yh-zone-main .yh-button{margin-top:19px}
#youzhong-hub .yh-specs{display:grid;grid-template-columns:1fr 1fr;gap:22px 28px;align-content:center}
#youzhong-hub .yh-specs dt{font-size:11px;color:var(--yh-muted);margin:0 0 7px}#youzhong-hub .yh-specs dd{font-size:13px;color:var(--yh-text);margin:0;line-height:1.8}
#youzhong-hub .yh-table-wrap{width:100%;overflow-x:auto}#youzhong-hub .yh-table{width:100%;border-collapse:collapse;font-size:12px;text-align:left}
#youzhong-hub .yh-table th{font-weight:600;background:var(--yh-soft)}#youzhong-hub .yh-table th,#youzhong-hub .yh-table td{padding:15px 12px;border-bottom:1px solid var(--yh-line);vertical-align:top}
#youzhong-hub .yh-table th:first-child,#youzhong-hub .yh-table td:first-child{padding-left:0}#youzhong-hub .yh-table .yh-price-cell{white-space:nowrap;color:var(--yh-blue);font-weight:600}
#youzhong-hub .yh-check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
#youzhong-hub .yh-check{padding:22px;border:1px solid var(--yh-line);border-radius:12px;background:var(--yh-bg)}
#youzhong-hub .yh-check h3{font-size:15px;font-weight:600}#youzhong-hub .yh-check p{font-size:12px;color:var(--yh-muted);margin-top:9px;line-height:1.9}
#youzhong-hub .yh-check span{display:block;font-size:11px;color:var(--yh-blue);margin-top:14px}
#youzhong-hub .yh-callout{padding:22px 25px;border-left:3px solid var(--yh-blue);background:var(--yh-soft);border-radius:0 8px 8px 0;font-size:12px;color:var(--yh-muted);line-height:1.9;margin-top:25px}
#youzhong-hub .yh-callout b{color:var(--yh-text);font-weight:600}
#youzhong-hub .yh-popup{position:relative;border-bottom:1px solid var(--yh-line);background:var(--yh-pale);padding:18px 38px;color:var(--yh-text)}
#youzhong-hub .yh-popup-row{display:flex;align-items:start;justify-content:space-between;gap:20px}#youzhong-hub .yh-popup strong{font-size:13px;font-weight:650}#youzhong-hub .yh-popup p{font-size:12px;color:var(--yh-muted);margin-top:4px}
#youzhong-hub .yh-popup code{display:block;font-size:11px;line-height:1.8;word-break:break-all;margin-top:8px;background:none;color:var(--yh-text)}
#youzhong-hub .yh-popup button{padding:3px 0;border:0;background:transparent;color:var(--yh-blue);font-size:12px;white-space:nowrap}
@media(max-width:950px){
 #youzhong-hub .yh-wrap{padding-inline:26px}#youzhong-hub .yh-header{gap:16px}#youzhong-hub .yh-nav{gap:13px}#youzhong-hub .yh-nav a{font-size:12px}#youzhong-hub .yh-header .yh-button{padding-inline:12px;font-size:12px}#youzhong-hub .yh-hero-grid{gap:25px}#youzhong-hub .yh-hero-price{flex-wrap:wrap}#youzhong-hub .yh-hero-price span:last-child{margin-left:0;padding-left:0;border:0;flex-basis:100%}#youzhong-hub .yh-price{padding-inline:14px}#youzhong-hub .yh-article{padding:19px}
}
@media(max-width:760px){
 #youzhong-hub .yh-header{flex-wrap:wrap;padding-block:17px 10px;gap:12px}#youzhong-hub .yh-actions{margin-left:auto}#youzhong-hub .yh-nav{order:3;width:100%;margin:0;justify-content:space-between;gap:12px}#youzhong-hub .yh-nav a{padding-block:9px}
 #youzhong-hub .yh-hero-grid{grid-template-columns:1fr;padding-block:35px;gap:29px}#youzhong-hub h1{font-size:38px}#youzhong-hub .yh-lead{max-width:none}#youzhong-hub .yh-network{transform:none;max-width:460px;width:100%;margin:auto;padding:21px}#youzhong-hub .yh-network-center{width:70px;height:70px;margin-top:20px;font-size:27px}
 #youzhong-hub .yh-section{padding-block:32px}#youzhong-hub .yh-section-title{align-items:start}#youzhong-hub h2{font-size:23px}#youzhong-hub .yh-features{grid-template-columns:1fr;gap:23px}#youzhong-hub .yh-prices{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}#youzhong-hub .yh-price{padding:20px 17px}
 #youzhong-hub .yh-region-teaser{grid-template-columns:1fr;padding:25px;gap:25px}#youzhong-hub .yh-region-letter{padding:17px 8px}#youzhong-hub .yh-region-letter strong{font-size:32px}
 #youzhong-hub .yh-article-grid{grid-template-columns:1fr;gap:12px}#youzhong-hub .yh-article{min-height:auto}#youzhong-hub .yh-faq{grid-template-columns:1fr}#youzhong-hub .yh-bottom-cta{flex-wrap:wrap}#youzhong-hub .yh-footer-head{align-items:start;flex-direction:column;gap:12px}
 #youzhong-hub .yh-zone-panel{grid-template-columns:1fr;padding:23px;gap:22px}#youzhong-hub .yh-zone-main{border-right:0;border-bottom:1px solid var(--yh-line);padding:0 0 22px}#youzhong-hub .yh-zone-price{margin-top:12px}#youzhong-hub .yh-specs{margin:0}#youzhong-hub .yh-check-grid{grid-template-columns:1fr}#youzhong-hub .yh-subhero h1{font-size:30px}#youzhong-hub .yh-table{min-width:550px}#youzhong-hub .yh-popup{padding:17px 25px}
}
@media(max-width:380px){
 #youzhong-hub .yh-wrap{padding-inline:17px}#youzhong-hub .yh-preview{padding-inline:14px;font-size:11px;gap:10px}#youzhong-hub .yh-preview span:last-child{max-width:85px;text-align:right}#youzhong-hub .yh-logo strong{font-size:20px}#youzhong-hub .yh-symbol{width:30px;height:34px;font-size:22px}#youzhong-hub .yh-actions{gap:3px}#youzhong-hub .yh-header .yh-button{padding-inline:10px;min-height:40px}
 #youzhong-hub h1{font-size:32px}#youzhong-hub .yh-lead{font-size:13px}#youzhong-hub .yh-nav{gap:8px}#youzhong-hub .yh-nav a{font-size:12px}#youzhong-hub .yh-section-title{flex-direction:column;gap:12px}#youzhong-hub .yh-price{padding:18px 12px}#youzhong-hub .yh-price h3{font-size:14px}#youzhong-hub .yh-prices{gap:10px}#youzhong-hub .yh-price-value strong{font-size:29px}#youzhong-hub .yh-region-teaser{padding:21px}#youzhong-hub .yh-zone-tabs{gap:8px}#youzhong-hub .yh-zone-tabs button{padding:10px 13px;font-size:12px}#youzhong-hub .yh-zone-panel{padding:19px}#youzhong-hub .yh-specs{gap:20px 16px}#youzhong-hub .yh-footer-links{gap:14px}
}
@media(pointer:coarse){#youzhong-hub .yh-nav a,#youzhong-hub .yh-textlink,#youzhong-hub summary,#youzhong-hub .yh-price .yh-button{min-height:44px}#youzhong-hub .yh-footer a{padding-block:8px}}

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