.ykx-topic-desktop,.ykx-topic-mobile{width:100%;min-width:0;background:#fff;color:#263a3c;font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif}
.ykx-topics{--topic-teal:#0f8087;--topic-heading:#194c50;--topic-muted:#65787b;--topic-border:#dfe9e8;--topic-soft:#f4f8f8;--topic-orange:#c44718;max-width:1200px;width:calc(100% - 48px);margin:0 auto 64px;font-size:16px;line-height:1.7}
.ykx-topics *{box-sizing:border-box}
.ykx-topics [hidden]{display:none!important}
.ykx-topics a{color:inherit;text-decoration:none;transition:color .18s,background .18s,border-color .18s}
.ykx-topics a:hover{color:var(--topic-teal)}
.ykx-topics button,.ykx-topics input{font:inherit}
.ykx-topics button{cursor:pointer}
.ykx-topics a:focus-visible,.ykx-topics button:focus-visible,.ykx-topics input:focus-visible,.ykx-topics summary:focus-visible{outline:2px solid var(--topic-teal);outline-offset:4px}
.ykx-topics h1,.ykx-topics h2,.ykx-topics h3,.ykx-topics p{margin:0;padding:0}
.ykx-topics h1,.ykx-topics h2,.ykx-topics h3{font-weight:600;color:var(--topic-heading)}
.topic-breadcrumb{display:flex;gap:12px;align-items:center;padding:24px 0 0;font-size:13px;color:var(--topic-muted)}
.topic-intro{display:grid;grid-template-columns:1fr 440px;gap:48px;align-items:center;padding:30px 0 36px;border-bottom:1px solid var(--topic-border);margin-bottom:36px}
.topic-eyebrow{font-size:13px;letter-spacing:1px;color:var(--topic-teal);margin-bottom:8px!important}
.ykx-topics h1{font-size:36px;line-height:1.35;letter-spacing:1px;margin-bottom:12px}
.topic-intro-description{font-size:15px;line-height:1.8;color:var(--topic-muted)}
.topic-search label{display:block;margin-bottom:10px;font-size:14px;color:var(--topic-heading)}
.topic-search-row{display:flex;align-items:center;gap:10px;border:1px solid #b9d7d7;border-radius:8px;padding:5px 5px 5px 14px;background:#fff;min-height:58px}
.topic-search-row:focus-within{border-color:var(--topic-teal);box-shadow:0 0 0 3px rgba(15,128,135,.08)}
.topic-search svg{width:20px;height:20px;flex-shrink:0;color:var(--topic-teal)}
.topic-search input{min-width:0;flex:1;width:100%;border:0;outline:0;background:transparent;padding:8px 0;font-size:14px;line-height:1.6;color:#263a3c}
.topic-search input::placeholder{color:#798b8d}
.topic-search button{flex-shrink:0;border:0;border-radius:5px;background:var(--topic-teal);color:#fff;padding:10px 18px;min-height:46px;font-size:14px}
.topic-search button:hover{background:#086b71}
.topic-section-heading{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:22px}
.ykx-topics h2{font-size:24px;line-height:1.5}
.topic-section-heading>div>p{margin-top:5px;color:var(--topic-muted);font-size:14px}
.topic-section-heading>a{font-size:14px;color:var(--topic-orange);white-space:nowrap;padding:10px 0}
.topic-section-heading>a>span{margin-left:8px}
.topic-featured{margin-bottom:44px}
.topic-featured-grid{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(0,1fr);grid-template-rows:repeat(2,minmax(0,1fr));gap:20px}
.topic-feature{overflow:hidden;display:grid;border:1px solid var(--topic-border);border-radius:10px;background:#fff;min-width:0}
.topic-feature:hover{border-color:#96bfc0}
.topic-feature-lead{grid-row:span 2;grid-template-columns:.9fr 1.1fr;min-height:332px;background:var(--topic-soft)}
.topic-feature-lead .topic-feature-art{grid-column:2;grid-row:1}
.topic-feature-lead .topic-feature-copy{grid-column:1;grid-row:1;padding:32px 26px;align-self:center}
.topic-feature-art{min-width:0;height:100%;background:var(--topic-soft)}
.topic-feature-art img{display:block;width:100%;height:100%;object-fit:cover;object-position:center}
.topic-feature-small{grid-template-columns:138px minmax(0,1fr)}
.topic-feature-small .topic-feature-copy{padding:18px 20px;align-self:center}
.topic-feature-small .topic-feature-art img{object-position:40% center}
.topic-kicker{font-size:12px;color:var(--topic-teal);margin-bottom:8px!important}
.topic-feature h3{font-size:23px;line-height:1.4;margin-bottom:10px}
.topic-feature-lead h3{font-size:30px;margin-bottom:14px}
.topic-feature-description{color:#536b6e;font-size:14px;line-height:1.8}
.topic-enter{display:inline-flex;gap:12px;align-items:center;font-size:14px;color:var(--topic-orange);margin-top:18px}
.topic-feature-small .topic-enter{margin-top:10px;font-size:13px}
.topic-library{scroll-margin-top:30px;margin-bottom:44px}
.topic-result-count{font-size:13px;color:var(--topic-muted);white-space:nowrap}
.topic-filters{display:flex;gap:10px;flex-wrap:wrap;margin:0 0 24px}
.topic-filters button{border:1px solid var(--topic-border);background:#fff;color:#4c6669;border-radius:6px;padding:9px 18px;font-size:14px;line-height:1.6;min-height:44px}
.topic-filters button[aria-pressed=true]{background:var(--topic-teal);border-color:var(--topic-teal);color:#fff}
.topic-filters button:hover{border-color:var(--topic-teal)}
.topic-card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.topic-card{display:flex;flex-direction:column;min-width:0;overflow:hidden;border:1px solid var(--topic-border);border-radius:9px;background:#fff}
.topic-card-cover{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--topic-soft)}
.topic-card-cover img{display:block;width:100%;height:100%;object-fit:cover;object-position:center}
.topic-card-cover img[src*="topic-medicine"],.topic-card-cover img[src*="topic-health"]{object-position:right center}
.topic-card-body{display:flex;flex-direction:column;padding:22px;flex:1;min-width:0}
.topic-card-meta{display:flex;justify-content:space-between;gap:10px;font-size:12px;line-height:1.6;color:var(--topic-muted);margin-bottom:9px}
.topic-card-meta>span:first-child{color:var(--topic-teal)}
.topic-card h3{font-size:20px;line-height:1.5;margin-bottom:10px}
.topic-card-description{color:#536b6e;font-size:14px;line-height:1.8;margin-bottom:14px!important}
.topic-related-links{font-size:13px;margin-bottom:12px;color:var(--topic-muted)}
.topic-related-links summary{cursor:pointer;width:fit-content;min-height:30px;padding:3px 0;color:#4d6c6f}
.topic-related-links>div{display:flex;gap:8px;flex-wrap:wrap;margin-top:7px}
.topic-related-links a{background:var(--topic-soft);padding:6px 10px;border-radius:4px;color:#49686b}
.topic-card-enter{display:flex;justify-content:space-between;gap:16px;border-top:1px solid #edf2f2;padding-top:13px;margin-top:auto;font-size:14px;color:var(--topic-orange)!important;min-height:44px}
.topic-update-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:40px}
.topic-update-item{padding:20px 0;border-top:1px solid var(--topic-border);min-width:0}
.topic-update-meta{display:flex;justify-content:space-between;gap:16px;margin-bottom:9px;font-size:12px;color:var(--topic-muted)}
.topic-update-meta span{color:var(--topic-teal)}
.topic-update-item h3{font-size:16px;line-height:1.8;font-weight:500;overflow-wrap:anywhere}
.topic-empty{text-align:center;padding:54px 20px;background:var(--topic-soft);border:1px solid var(--topic-border);border-radius:8px}
.topic-empty h3{font-size:20px;margin-bottom:12px}
.topic-empty p{font-size:14px;color:var(--topic-muted);margin-bottom:18px}
.topic-reset{border:1px solid var(--topic-teal);border-radius:5px;background:#fff;color:var(--topic-teal);padding:10px 18px;min-height:44px}
.topic-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.topic-noscript,.topic-unavailable{font-size:14px;color:var(--topic-muted);padding:16px 0}
.ykx-topic-desktop .common-header{width:100%;max-width:none;min-width:0;padding:0;box-sizing:border-box}
.ykx-topic-desktop .common-header .common-navbox{width:calc(100% - 48px);max-width:1200px;min-width:0;margin-inline:auto;display:flex;align-items:center;justify-content:space-between}
.ykx-topic-desktop .common-header .common-nav{min-width:0;display:flex;justify-content:space-between;flex:1}
.ykx-topic-desktop .common-header .common-navbox .common-nav .common-navitem{margin:0;padding:0 12px;white-space:nowrap}
.ykx-topic-desktop .common-header .common-navbox .ykx-logo-href{flex-shrink:0;width:153px;height:45px}
.ykx-topic-desktop .common-header .common-navbox .ykx-logo{width:100%;height:100%;object-fit:contain}
.ykx-topic-desktop .common-header .phone-400{display:none}
.ykx-topic-desktop .topic-library{scroll-margin-top:110px}
.ykx-topic-desktop .common-footer,.ykx-topic-desktop .common-outlinkbox,.ykx-topic-desktop .group-info{min-width:0;max-width:100%;overflow-wrap:anywhere}
.ykx-topic-desktop .common-outlinkbox>*,.ykx-topic-desktop .group-info>*{max-width:100%}
.ykx-topic-desktop .common-footer-nav{width:calc(100% - 48px);max-width:1200px;min-width:0}
@media(max-width:1199px){.topic-intro{grid-template-columns:1fr 400px;gap:24px}.topic-featured-grid{grid-template-columns:minmax(0,1.5fr) minmax(0,1fr)}.topic-feature-lead{grid-template-columns:.95fr 1.05fr}.topic-feature-lead .topic-feature-copy{padding:25px 22px}.topic-feature-small{grid-template-columns:110px minmax(0,1fr)}.topic-feature-small .topic-feature-copy{padding:16px}.topic-feature-small h3{font-size:21px}.ykx-topic-desktop .common-header .common-navbox .common-nav .common-navitem{font-size:15px;padding:0 8px}}
@media(max-width:999px){.topic-card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.topic-featured-grid{grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:auto}.topic-feature-lead{grid-column:span 2;grid-row:auto;min-height:285px}.topic-feature-small{grid-template-columns:125px minmax(0,1fr)}.topic-intro{grid-template-columns:1fr 350px}.ykx-topic-desktop .common-header .common-navbox .common-nav .common-navitem{font-size:14px;padding:0 5px}.ykx-topic-desktop .common-header .common-navbox .ykx-logo-href{width:130px}}
@media(max-width:699px){.ykx-topics{width:calc(100% - 32px);margin-bottom:40px}.topic-breadcrumb{padding-top:16px;font-size:12px}.topic-intro{grid-template-columns:1fr;gap:24px;padding:22px 0 26px;margin-bottom:28px}.ykx-topics h1{font-size:30px;margin-bottom:10px}.topic-intro-description{font-size:14px}.topic-eyebrow{font-size:12px}.topic-search-row{gap:8px;padding-left:10px;min-height:54px}.topic-search button{padding:10px 12px;font-size:13px;min-height:44px}.topic-search input{font-size:14px}.topic-section-heading{gap:12px;margin-bottom:18px}.ykx-topics h2{font-size:22px}.topic-section-heading>a{font-size:12px}.topic-section-heading>div>p{font-size:13px}.topic-featured-grid{grid-template-columns:minmax(0,1fr);gap:14px}.topic-feature-lead{grid-column:auto;display:flex;flex-direction:column;min-height:0}.topic-feature-lead .topic-feature-art{height:auto;aspect-ratio:16/9;order:0}.topic-feature-lead .topic-feature-copy{padding:20px;align-self:stretch;order:1}.topic-feature-lead h3{font-size:24px;margin-bottom:8px}.topic-feature-lead .topic-enter{margin-top:12px}.topic-feature-small{grid-template-columns:112px minmax(0,1fr)}.topic-feature-small .topic-feature-copy{padding:15px}.topic-feature-small h3{font-size:20px;margin-bottom:7px}.topic-feature-small .topic-feature-description{font-size:13px;line-height:1.8}.topic-featured,.topic-library{margin-bottom:32px}.topic-filters{gap:8px;margin-bottom:20px}.topic-filters button{padding:9px 12px;font-size:13px}.topic-card-grid{grid-template-columns:minmax(0,1fr);gap:20px}.topic-card-body{padding:20px}.topic-card h3{font-size:21px}.topic-card-description{font-size:14px}.topic-update-grid{grid-template-columns:minmax(0,1fr)}.topic-update-item{padding:17px 0}.topic-update-item h3{font-size:15px}.topic-result-count{font-size:12px}.topic-update-meta{font-size:12px}.ykx-topic-mobile .ykx-topics{padding-top:0}.ykx-topic-mobile .footer{margin-bottom:0}.ykx-topic-mobile{padding-bottom:65px}}
@media(prefers-reduced-motion:reduce){.ykx-topics a{transition:none}}