/* Postgraduate public catalog; shared typography and course colors live in styles.css. */
body:has(.kaoyan-shelf){background:var(--course-kaoyan-soft);color:var(--color-ink)}
.kaoyan-shelf{--color-primary:var(--course-kaoyan-accent);--color-accent:var(--course-kaoyan-accent);--color-soft:var(--course-kaoyan-soft)}
.kaoyan-top{display:flex;align-items:center;justify-content:space-between;gap:18px;border-bottom:1px solid var(--color-line);padding-bottom:20px;margin-bottom:28px;font-size:12px;color:var(--color-muted)}
.kaoyan-top>a{display:inline-flex;align-items:center;min-height:40px;color:var(--course-kaoyan-accent)}
.kaoyan-top>a:hover,.kaoyan-details a:hover{text-decoration:underline;text-underline-offset:4px}
.kaoyan-heading{margin-bottom:27px}.kaoyan-heading .section-eyebrow{font-size:10px;letter-spacing:2px;color:var(--course-kaoyan-accent);margin:0 0 10px}
.kaoyan-heading h1{font:600 35px/1.4 var(--font-reading);margin:0 0 10px;letter-spacing:2px}.kaoyan-heading>p:last-child{font-size:14px;color:var(--color-muted);line-height:1.8;margin:0}
.kaoyan-hero{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);overflow:hidden;border:1px solid var(--color-line);border-radius:20px;background:var(--color-surface)}
.kaoyan-hero-copy{display:flex;flex-direction:column;align-items:flex-start;padding:40px;min-width:0;background:linear-gradient(130deg,var(--color-surface),var(--course-kaoyan-soft))}
.kaoyan-hero-kicker{font-size:11px;letter-spacing:2px;color:var(--course-kaoyan-accent);margin:0 0 20px}.kaoyan-hero h2{font:600 31px/1.65 var(--font-reading);margin:0 0 17px}
.kaoyan-hero-copy>p:not(.kaoyan-hero-kicker){font-size:14px;color:var(--color-muted);line-height:1.9;max-width:390px;margin:0 0 25px}
.kaoyan-primary{background:var(--course-kaoyan-accent);border-color:var(--course-kaoyan-accent);color:var(--color-white);min-height:45px;gap:25px}.kaoyan-primary:hover:not(:disabled){background:var(--course-kaoyan-accent);border-color:var(--course-kaoyan-accent);filter:brightness(.92)}
.kaoyan-hero-caption{font-size:11px;color:var(--color-muted);margin-top:18px}.kaoyan-hero-art{position:relative;min-height:350px;overflow:hidden;background:var(--course-kaoyan-soft)}
.kaoyan-hero-art img{display:block;position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 38%}
.kaoyan-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:22px 0}.kaoyan-stats>div{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:20px 14px;border:1px solid var(--color-line);border-radius:13px;background:var(--color-surface)}
.kaoyan-stats strong{font:600 32px/1.4 Georgia,serif;color:var(--course-kaoyan-accent)}.kaoyan-stats span{font-size:12px;line-height:1.7;margin-top:5px;color:var(--color-muted)}
.kaoyan-notice{padding:19px 23px;margin-bottom:35px;border:1px solid var(--color-line);border-left:4px solid var(--course-kaoyan-accent);border-radius:9px;background:var(--color-surface)}
.kaoyan-notice strong{font-size:14px;color:var(--course-kaoyan-accent)}.kaoyan-notice p{font-size:12px;line-height:1.9;color:var(--color-muted);margin:7px 0 0}
.kaoyan-catalog-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}.kaoyan-catalog-heading h2{font:600 24px/1.6 var(--font-reading);margin:0;scroll-margin-top:95px}.kaoyan-catalog-heading h2>span{font:12px/1.6 var(--font-ui);color:var(--color-muted);margin-left:10px}.kaoyan-catalog-heading p{font-size:12px;color:var(--color-muted);margin:0}
.kaoyan-tools{display:flex;align-items:center;gap:16px;margin-bottom:14px}.kaoyan-search{flex:1;width:auto;min-height:44px;background:var(--color-surface)}.kaoyan-search input{font-size:13px;min-width:0}.kaoyan-search .clear-search{width:30px;height:32px;font-size:21px;color:var(--course-kaoyan-accent)}
.kaoyan-genre{display:flex;align-items:center;gap:10px;color:var(--color-muted);font-size:12px}.kaoyan-genre select{min-height:44px;max-width:210px;padding:0 32px 0 13px;background:var(--color-surface);border:1px solid var(--color-line);border-radius:8px;color:var(--color-ink);font:13px var(--font-ui)}
.kaoyan-visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.kaoyan-result-count{font-size:12px;color:var(--color-muted);margin:0 0 18px}
.kaoyan-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;gap:20px}.kaoyan-card{display:grid;grid-template-columns:116px minmax(0,1fr);gap:20px;min-width:0;padding:20px;background:var(--color-surface);border:1px solid var(--color-line);border-radius:15px}
.kaoyan-text-cover{position:relative;align-self:start;display:flex;flex-direction:column;align-items:center;aspect-ratio:3/4;min-width:0;padding:13px 10px;text-align:center;border:1px solid var(--color-line);border-radius:5px 9px 9px 5px;color:var(--course-kaoyan-accent);background:linear-gradient(145deg,var(--course-kaoyan-soft),var(--color-surface))}
.kaoyan-text-cover:before{content:'';position:absolute;left:5px;top:0;bottom:0;border-left:1px solid var(--color-line)}.kaoyan-cover-1{background:linear-gradient(160deg,var(--color-surface),var(--course-kaoyan-soft))}.kaoyan-cover-2{background:linear-gradient(35deg,var(--course-kaoyan-soft),var(--color-white))}
.kaoyan-text-cover>span{font-size:7px;letter-spacing:1px}.kaoyan-text-cover b{font:24px/1.3 Georgia,serif;margin:8px 0 5px;color:var(--color-muted)}.kaoyan-text-cover strong{font:500 12px/1.7 var(--font-reading);letter-spacing:.6px;overflow-wrap:anywhere}.kaoyan-text-cover small{font-size:7px;letter-spacing:1px;margin-top:auto;padding-top:10px}
.kaoyan-card-copy{min-width:0}.kaoyan-card-topline{display:flex;justify-content:space-between;gap:10px;font-size:10px;color:var(--course-kaoyan-accent);margin-bottom:8px;overflow-wrap:anywhere}.kaoyan-card-topline>span:last-child{flex:none;font-family:Georgia,serif;color:var(--color-muted)}
.kaoyan-card h3{font:600 18px/1.7 var(--font-reading);overflow-wrap:anywhere;margin:0 0 11px}.kaoyan-card-intro{font-size:12px;line-height:1.9;color:var(--color-muted);margin:0 0 12px;overflow-wrap:anywhere}.kaoyan-card-meta{font-size:11px;line-height:1.8;color:var(--course-kaoyan-accent);margin:0 0 11px}
.kaoyan-details{border-top:1px solid var(--color-line)}.kaoyan-details summary{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:42px;padding:9px 0;cursor:pointer;list-style:none;font-size:12px;color:var(--course-kaoyan-accent)}.kaoyan-details summary::-webkit-details-marker{display:none}.kaoyan-details summary>span{font-size:16px}.kaoyan-details[open] summary>span{transform:rotate(45deg)}
.kaoyan-details p{font-size:11px;line-height:1.85;color:var(--color-muted);margin:3px 0 5px}.kaoyan-details a{display:inline-flex;align-items:center;gap:8px;min-height:40px;font-size:11px;color:var(--course-kaoyan-accent)}
.kaoyan-empty{grid-column:1/-1;text-align:center;padding:42px 24px;background:var(--color-surface);border:1px dashed var(--color-line);border-radius:14px}.kaoyan-empty h3{font:600 23px/1.6 var(--font-reading);margin:0 0 12px}.kaoyan-empty p{font-size:13px;color:var(--color-muted);line-height:1.8}
.kaoyan-pagination{display:flex;align-items:center;justify-content:center;gap:20px;margin-top:28px}.kaoyan-pagination p{font-size:12px;color:var(--color-muted);margin:0}.kaoyan-pagination .btn{min-height:44px}.kaoyan-pagination p:focus,.kaoyan-catalog-heading h2:focus{outline:2px solid var(--course-kaoyan-accent);outline-offset:5px}
.kaoyan-shelf button:focus-visible,.kaoyan-shelf a:focus-visible,.kaoyan-shelf select:focus-visible,.kaoyan-shelf summary:focus-visible{outline:2px solid var(--course-kaoyan-accent);outline-offset:4px}
@media(max-width:1000px){.kaoyan-hero-copy{padding:30px}.kaoyan-hero h2{font-size:28px}.kaoyan-card{grid-template-columns:100px minmax(0,1fr);padding:17px;gap:15px}.kaoyan-text-cover{padding:11px 8px}.kaoyan-text-cover strong{font-size:11px}.kaoyan-text-cover small{font-size:6px}.kaoyan-card h3{font-size:17px}}
@media(max-width:760px){.kaoyan-top>span{display:none}.kaoyan-heading h1{font-size:30px}.kaoyan-heading>p:last-child{font-size:13px}.kaoyan-hero{grid-template-columns:minmax(0,1fr)}.kaoyan-hero-art{grid-row:1;min-height:230px}.kaoyan-hero-art img{object-position:center 34%}.kaoyan-hero-copy{grid-row:2;padding:28px}.kaoyan-hero h2{font-size:27px}.kaoyan-stats{gap:10px;margin:18px 0}.kaoyan-stats>div{padding:17px 9px}.kaoyan-stats strong{font-size:27px}.kaoyan-stats span{font-size:11px}.kaoyan-grid{grid-template-columns:minmax(0,1fr)}.kaoyan-card{grid-template-columns:112px minmax(0,1fr);padding:20px;gap:20px}.kaoyan-card h3{font-size:19px}.kaoyan-text-cover strong{font-size:12px}.kaoyan-catalog-heading p{display:none}.kaoyan-tools{align-items:stretch;flex-direction:column;gap:12px}.kaoyan-search{width:100%;max-width:none}.kaoyan-genre select{flex:1;max-width:none}.kaoyan-notice{padding:17px 19px;margin-bottom:29px}}
@media(max-width:420px){.kaoyan-top{gap:12px;font-size:11px}.kaoyan-heading .section-eyebrow{font-size:9px;letter-spacing:1px}.kaoyan-heading h1{font-size:28px}.kaoyan-hero-copy{padding:25px 22px}.kaoyan-hero h2{font-size:24px}.kaoyan-hero-art{min-height:200px}.kaoyan-hero-copy>p:not(.kaoyan-hero-kicker){font-size:13px}.kaoyan-stats{gap:7px}.kaoyan-stats span{font-size:10px}.kaoyan-card{grid-template-columns:86px minmax(0,1fr);padding:16px;gap:14px}.kaoyan-text-cover{padding:10px 7px}.kaoyan-text-cover>span,.kaoyan-text-cover small{font-size:6px;letter-spacing:0}.kaoyan-text-cover b{font-size:20px}.kaoyan-text-cover strong{font-size:10px;letter-spacing:0}.kaoyan-card h3{font-size:17px}.kaoyan-card-meta{font-size:10px}.kaoyan-card-intro{font-size:11px}.kaoyan-catalog-heading h2{font-size:22px}.kaoyan-pagination{gap:12px}.kaoyan-pagination p{font-size:11px}}
@media(forced-colors:active){.kaoyan-text-cover,.kaoyan-hero-copy,.kaoyan-hero-art{background:Canvas}.kaoyan-primary{border:1px solid ButtonText}}