/* Center-wide revision: restrained institutional layout, with editable photo slots. */
.bridge-hero{position:relative;isolation:isolate;min-height:650px;height:min(780px,calc(100svh - 96px));background:#183f47;color:#fff;overflow:hidden}
.bridge-pictures{position:absolute;inset:0;z-index:-2}.bridge-pictures img{position:absolute;top:0;height:100%;width:64%;object-fit:cover}.bridge-tsinghua{left:0;object-position:60% center}.bridge-pictures .bridge-hospital{right:0;width:65%;object-position:55% center;mask-image:linear-gradient(to right,transparent,#000 34%);-webkit-mask-image:linear-gradient(to right,transparent,#000 34%)}
.bridge-hero:before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(0deg,#fff 0%,rgba(255,255,255,.03) 21%,transparent 45%),linear-gradient(90deg,rgba(12,35,46,.78),rgba(12,35,46,.35) 55%,rgba(12,35,46,.12))}
.bridge-copy{padding-top:100px;padding-bottom:155px;position:relative}.bridge-copy p{color:inherit}.bridge-eyebrow{font-size:18px;letter-spacing:.16em;margin:0 0 17px}.bridge-copy h1{font-size:clamp(36px,4.25vw,60px);font-weight:500;line-height:1.35;letter-spacing:.025em;margin:0 0 10px}.bridge-en{font:18px/1.5 Arial,sans-serif;letter-spacing:.035em;margin:0}.bridge-mission{font-size:25px;line-height:1.75;margin:32px 0 22px}.bridge-more{display:inline-flex;gap:45px;align-items:center;border-bottom:1px solid #ffffff90;padding:8px 0;color:#fff}.bridge-more:hover{color:#fff;border-color:#fff}.bridge-labels{position:absolute;bottom:24px;left:0;right:0;display:flex;justify-content:space-between;gap:18px;color:#29454c;font-size:14px}.bridge-connection{font-size:13px;letter-spacing:.12em}
.center-news-services{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(285px,1fr);gap:65px}.center-news-column{min-width:0}.center-section-heading{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px}.center-section-heading h2,.center-services h2{font-size:32px;line-height:1.4;margin:6px 0 0}.center-home .kicker{color:var(--teal)}
.center-news-column .timeline-bar{margin-bottom:22px;gap:20px}.center-news-column .timeline-dates{gap:28px}.center-news-column .timeline-dates button{font-size:20px;min-width:100px}.center-news-column .timeline-controls{gap:8px}.center-news-column .timeline-controls button{width:34px;height:34px;font-size:20px}.center-news-column .news-slide{display:block;padding-right:0}.center-news-column .timeline-photo{aspect-ratio:1.9}.center-news-column .timeline-copy{padding:22px 0 0}.center-news-column .timeline-copy h3{font-size:25px;margin:10px 0}.center-news-column .timeline-copy p{font-size:16px;margin:8px 0 14px;line-height:1.8}.center-news-column .timeline-hint{margin-bottom:0}
.center-services{border-left:1px solid var(--line);padding-left:40px}.center-services h2{font-size:26px;margin-bottom:25px}.center-service-link{display:flex;gap:18px;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding:27px 0;transition:color .15s}.center-service-link strong{font-size:21px;font-weight:500;display:block;margin-bottom:8px}.center-service-link small{display:block;color:var(--muted);font-size:14px;line-height:1.7}.center-service-link:nth-of-type(1),.center-service-link:nth-of-type(2){color:var(--teal)}.service-arrow{font:28px Arial;flex-shrink:0}.center-service-link:hover strong{text-decoration:underline;text-underline-offset:5px}.center-service-note{font-size:14px;border-top:1px solid var(--line);padding-top:21px;margin:0}
.center-introduction{background:var(--soft)}.center-intro-grid{display:grid;grid-template-columns:1fr 1.35fr;gap:75px}.center-intro-grid h2{font-size:36px;line-height:1.55;margin:10px 0 0}.center-intro-grid p:first-child{margin-top:0}.center-disciplines{display:grid;grid-template-columns:repeat(6,1fr);gap:20px;border-top:1px solid var(--line);padding-top:28px;margin-top:48px}.center-disciplines a{display:flex;gap:8px;justify-content:space-between;font-size:16px}.center-disciplines span{color:var(--teal)}
.center-keylab-grid{display:grid;grid-template-columns:1.25fr 1fr;align-items:center;gap:80px}.center-keylab h2{font-size:32px;line-height:1.65;margin:10px 0 22px}.center-keylab h2 span{color:var(--teal)}.center-keylab p{font-size:17px;line-height:1.9;margin-bottom:25px;max-width:530px}.center-keylab figure img{max-height:440px;object-fit:contain}.center-official-link{display:block;font-size:13px;margin-top:18px;color:var(--muted)}
.center-photo-pair{display:grid;grid-template-columns:1fr 1fr;gap:35px}.center-photo-slot>img,.center-photo-empty{width:100%;aspect-ratio:1.6;object-fit:cover}.center-photo-empty{border:1px solid var(--line);background:#f5f7f7;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#64767b;gap:10px}.center-photo-empty span{font-size:22px}.center-photo-empty small{font-size:13px;letter-spacing:.08em;color:var(--muted)}.center-photo-slot figcaption{font-size:14px}
.center-footer{padding:46px 0 22px}.center-footer-main{display:flex;justify-content:space-between;gap:40px}.center-footer-main b{font-size:21px;font-weight:500}.center-footer p{font-size:14px;line-height:1.9;margin:12px 0 0}.center-footer-links{display:flex;flex-wrap:wrap;align-content:start;gap:12px 28px;max-width:380px;padding-top:3px;font-size:14px}.center-footer .copyright{margin-top:28px}.center-footer .copyright a{color:inherit}.center-source-credit{font-size:12px;display:block;margin-top:6px}
.keylab-detail .prose{max-width:none}.keylab-detail .keylab-focus{display:grid;grid-template-columns:1fr 1fr;gap:0 55px}.keylab-focus>div{border-top:1px solid var(--line);padding:24px 0}.keylab-focus h3{font-size:22px;margin:0 0 10px}.keylab-focus p{margin:0;line-height:1.9}.center-information{max-width:900px}.center-information h2{font-size:29px;margin-top:0}.center-information p,.center-information li{font-size:17px;line-height:1.95}.center-information li{margin-bottom:12px}.center-information .btn{margin-top:20px}.center-information .source-note{font-size:14px}
@media(max-width:1100px){.center-news-services{gap:35px;grid-template-columns:minmax(0,1.5fr) minmax(265px,1fr)}.center-services{padding-left:28px}.center-news-column .timeline-bar{flex-wrap:wrap}.center-news-column .timeline-controls{margin-top:0}.center-intro-grid,.center-keylab-grid{gap:45px}.center-disciplines{grid-template-columns:repeat(3,1fr);gap:22px 35px}.bridge-copy{padding-top:95px}}
@media(max-width:820px){.center-news-services{grid-template-columns:1fr;gap:45px}.center-services{border-left:0;border-top:1px solid var(--line);padding:35px 0 0}.center-service-link{padding:22px 0}.center-intro-grid,.center-keylab-grid{grid-template-columns:1fr;gap:32px}.center-keylab figure{max-width:540px}.center-footer-main{display:block}.center-footer-links{margin-top:26px;max-width:none}.bridge-connection{display:none}.bridge-labels{font-size:12px}.bridge-pictures img{width:74%}.bridge-pictures .bridge-hospital{width:75%;object-position:47% center}.bridge-tsinghua{object-position:56% center}}
@media(max-width:640px){.bridge-hero{height:auto;min-height:650px}.bridge-copy{padding-top:85px;padding-bottom:125px}.bridge-copy h1{font-size:34px}.bridge-eyebrow{font-size:15px}.bridge-en{font-size:14px}.bridge-mission{font-size:22px;margin-top:30px}.bridge-hero:before{background:linear-gradient(0deg,#fff,transparent 24%),linear-gradient(90deg,#0c232ec7,#0c232e59)}.bridge-labels{bottom:22px;gap:14px;font-size:11px}.bridge-labels span{max-width:48%}.center-section-heading{gap:16px;margin-bottom:26px}.center-section-heading h2{font-size:28px}.center-section-heading .more{font-size:13px}.center-intro-grid h2{font-size:29px}.center-keylab h2{font-size:27px}.center-disciplines{grid-template-columns:repeat(2,1fr)}.center-photo-pair{grid-template-columns:1fr;gap:28px}.center-photo-empty{aspect-ratio:1.75}.center-news-column .timeline-copy h3{font-size:23px}.center-news-column .timeline-bar{gap:10px}.center-news-column .timeline-dates{gap:18px}.center-news-column .timeline-controls{margin-left:auto}.center-information h2{font-size:25px}.keylab-detail .keylab-focus{grid-template-columns:1fr}.center-footer-main b{font-size:19px}.center-service-link strong{font-size:20px}}
.bridge-pictures img.bridge-whole{inset:0;width:100%;object-position:center}.service-pending{color:var(--muted);cursor:default}.service-status{font-size:12px;border:1px solid var(--line);padding:3px 8px;white-space:nowrap}.center-service-link.service-pending strong{text-decoration:none}

/* Filled service buttons; concise labels only. */
.center-services .center-service-link{min-height:82px;padding:22px 26px;margin:0 0 16px;border:0;background:#17675f;color:#fff;border-radius:3px;transition:background .18s,color .18s}
.center-services .center-service-link strong{margin:0;font-size:21px;line-height:1.4}
.center-services a.center-service-link:nth-last-of-type(-n+2){background:#294955}
.center-services a.center-service-link:hover{background:#104e49;color:#fff}
.center-services a.center-service-link:hover strong{text-decoration:none}
.center-services a.center-service-link:focus-visible{outline:3px solid #17675f;outline-offset:4px}
.center-services .center-service-link.service-pending{background:#dce9e6;color:#465f5a;cursor:not-allowed}
@media(max-width:640px){.center-services .center-service-link{min-height:74px;padding:20px 22px}.center-services .center-service-link strong{font-size:20px}}