:root{font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;color:#2c1b41;background:#f8f4fc;font-size:16px;--accent:#7739c7;--muted:#756381}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,a,input,select{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #b38ae5;outline-offset:4px}[hidden]{display:none!important}.top{background:#fff;display:flex;justify-content:space-between;align-items:center;padding:20px max(24px,calc((100vw - 1240px)/2));gap:18px;border-bottom:1px solid #ece2f5}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-weight:700;font-size:22px}.brand-tail{font-size:16px;font-weight:500;padding-left:9px}.mark{background:var(--accent);color:#fff;font-size:24px;width:42px;height:42px;display:grid;place-items:center;border-radius:12px}.outline,.primary{padding:11px 17px;border-radius:9px;font-size:15px;font-weight:600}.outline{background:#fff;border:1px solid #d9c7ee;color:var(--accent)}.primary{background:var(--accent);color:white;border:1px solid var(--accent)}main{max-width:1240px;margin:auto;padding:0 24px 65px}.intro{padding:44px 0 30px;position:relative}.eyebrow{font-size:13px;letter-spacing:2px;color:var(--accent);font-weight:600;margin:0 0 14px}h1{font-size:40px;line-height:1.35;letter-spacing:-1px;margin:0 0 13px;font-weight:700}.lede{font-size:17px;color:var(--muted);margin:0;line-height:1.8}.mobile-break{display:none}.filters{padding:23px;background:#fff;border:1px solid #e9dff3;border-radius:15px}.search{display:flex;align-items:center;gap:12px;border:1px solid #dfd0ee;border-radius:9px;padding:11px 14px;max-width:560px;background:#fcf9ff}.search span{font-size:29px;line-height:1;color:#7a6689}.search input{width:100%;min-width:0;background:transparent;border:0;outline:none;padding:2px}.subjects{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0}.chip{border:1px solid transparent;padding:9px 15px;border-radius:8px;background:#f4eef9;color:#654d78;font-size:15px}.chip[aria-pressed=true]{background:var(--accent);color:#fff}.selects{display:flex;align-items:center;gap:22px;flex-wrap:wrap}.selects label{font-size:14px;color:var(--muted);display:flex;align-items:center;gap:9px}select{border:1px solid #ddceeb;padding:8px 30px 8px 10px;border-radius:7px;background:#fff;color:#2c1b41;font-size:15px}.textbutton{background:none;border:0;color:var(--accent);padding:8px;font-size:14px}.results-line{display:flex;justify-content:space-between;align-items:center;gap:14px;margin:28px 0 17px;font-size:14px;color:var(--muted)}.results-line p{margin:0;color:#49305e;font-weight:600}.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:23px}.card{background:#fff;border:1px solid #e6daf1;border-radius:14px;overflow:hidden;transition:transform .18s,box-shadow .18s}.card:hover{transform:translateY(-4px);box-shadow:0 12px 28px #7438c914}.cover{display:block;text-decoration:none;position:relative;background:#efe4fa;overflow:hidden}.cover img{display:block;height:auto;aspect-ratio:3/4;object-fit:contain;width:100%;background:#1d102a}.watch{position:absolute;bottom:16px;right:12px;background:#fffffff2;color:#2c1b41;border-radius:30px;font-size:13px;font-weight:600;padding:9px 12px;box-shadow:0 3px 12px #24113c33}.card-info{padding:18px 17px}.meta{font-size:13px;color:var(--accent);line-height:1.7;margin:0 0 7px}.card h2{font-size:20px;margin:0 0 9px;line-height:1.5}.titlelink{text-decoration:none}.description{font-size:14px;line-height:1.8;color:var(--muted);margin:0}.card-bottom{margin-top:17px;padding-top:12px;border-top:1px solid #f0e9f6;display:flex;justify-content:space-between;align-items:center;gap:8px}.kind{font-size:13px;color:#806a91}.card-bottom button{border:0;background:none;color:var(--accent);font-size:14px;padding:4px 0}.empty{text-align:center;background:#fff;padding:55px 20px;border-radius:12px;color:var(--muted)}.empty h2{color:#2c1b41;font-size:22px}.empty p{line-height:1.8}.back{display:inline-flex;align-items:center;border:0;background:none;color:var(--accent);padding:22px 0;font-size:16px}.detail-layout{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:38px;align-items:start}.media{background:#1d102a;border-radius:14px;overflow:hidden}.media video{display:block;max-height:75vh;width:100%;aspect-ratio:3/4;object-fit:contain}.video-note{font-size:14px;color:var(--muted);line-height:1.7;margin:13px 0}.video-note a{color:var(--accent)}.detail-info{padding:22px 0}.detail-info h1{font-size:33px;line-height:1.5;margin:6px 0 17px}.detail-description{font-size:17px;line-height:1.9;color:#6c507f}.tags{display:flex;flex-wrap:wrap;gap:9px;margin:22px 0}.tags span{padding:7px 10px;font-size:14px;background:#f0e5fc;color:#6b3699;border-radius:5px}.use{padding:20px;background:white;border:1px solid #e9dbf5;border-radius:12px;margin:25px 0}.use h2{font-size:17px;margin:0 0 10px}.use p{font-size:15px;color:#765e89;line-height:1.9;margin:0}.detail-info .primary{width:100%;padding:13px}.related{margin-top:45px}.related h2{font-size:22px}.related .grid{grid-template-columns:repeat(3,minmax(0,1fr))}footer{border-top:1px solid #e7dbf1;max-width:1192px;margin:0 auto;padding:30px 24px 45px;color:var(--muted);font-size:14px;line-height:1.8}footer span{font-weight:600;color:#49305e}footer p{margin:8px 0 0;max-width:680px}dialog{border:1px solid #e0d2ef;border-radius:14px;max-width:calc(100vw - 32px);width:510px;padding:24px;color:#2c1b41}dialog::backdrop{background:#28123fa3}.dialog-head{display:flex;align-items:center;justify-content:space-between;gap:20px}.dialog-head h2{font-size:22px;margin:0}dialog p{font-size:15px;color:var(--muted);line-height:1.8}textarea{width:100%;height:115px;padding:12px;border:1px solid #ddccef;border-radius:8px;font-size:15px;resize:none;word-break:break-all;color:#583b70}dialog .primary{margin-top:15px;width:100%}.toast{position:fixed;bottom:32px;left:50%;transform:translateX(-50%);background:#32164d;color:white;padding:12px 20px;border-radius:9px;font-size:15px;opacity:0;pointer-events:none;transition:opacity .15s;max-width:90vw;text-align:center;z-index:100}.toast.visible{opacity:1}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}@media(max-width:1050px){.grid{grid-template-columns:repeat(3,minmax(0,1fr))}.detail-layout{gap:25px}}@media(max-width:740px){.grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}h1{font-size:34px}.detail-layout{grid-template-columns:1fr}.detail-info{padding:0}.media{max-width:480px;margin:auto}.related .grid{grid-template-columns:repeat(2,minmax(0,1fr))}.media video{max-height:70vh}.selects{gap:12px}.selects label{gap:5px}}@media(max-width:480px){.top{padding:15px 18px;gap:10px}.brand{font-size:21px;gap:9px}.brand-tail{font-size:13px;padding-left:5px}.mark{width:33px;height:33px;font-size:21px;border-radius:9px}.outline{padding:9px 10px;font-size:13px}main{padding:0 16px 40px}.intro{padding:30px 0 25px}h1{font-size:32px}.mobile-break{display:block}.eyebrow{font-size:12px;letter-spacing:1.5px}.lede{font-size:15px}.filters{padding:16px}.search{padding:10px 11px}.search input{font-size:15px}.subjects{gap:6px;margin:15px 0}.chip{padding:8px 10px;font-size:14px}.selects{gap:10px}select{font-size:14px;padding-right:18px}.selects .textbutton{padding:5px}.results-line{font-size:13px;margin:24px 0 14px}.results-line span{font-size:12px}.card-info{padding:13px 12px}.card h2{font-size:17px}.meta{font-size:12px}.description{font-size:14px;line-height:1.7}.watch{font-size:12px;padding:7px 10px;bottom:12px;right:9px}.card-bottom{flex-wrap:wrap;margin-top:13px}.kind{font-size:12px}.card-bottom button{font-size:13px}.detail-info h1{font-size:29px}.detail-description{font-size:16px}.tags{margin:17px 0}.related{margin-top:35px}footer{padding:25px 18px 35px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}@media(min-width:740px){.media video{aspect-ratio:auto;min-height:480px}}

.type-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:10px;margin-bottom:24px}.type-tile{display:flex;flex-direction:column;align-items:flex-start;gap:7px;border:1px solid #e5d7f1;border-radius:10px;background:#fcf9ff;color:#56346e;padding:17px 14px;text-align:left;min-width:0}.type-icon{font-size:23px;line-height:1.2;color:#7739c7}.type-label{font-size:17px;font-weight:600;line-height:1.5}.type-number{font-size:13px;color:#856e98}.type-tile[aria-pressed=true]{background:#7739c7;color:white;border-color:#7739c7;box-shadow:0 4px 14px #7739c724}.type-tile[aria-pressed=true] .type-icon,.type-tile[aria-pressed=true] .type-number{color:#fff}.filter-subtitle{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:16px;font-size:14px;color:#756381;line-height:1.8}.filter-subtitle strong{color:#49305e;font-size:17px}.selects{margin-top:16px}.secondary-meta{display:block;color:#816c91;margin-top:5px}.scene-preview img{width:100%;height:auto;display:block}.experience{margin-top:18px}.experience a{display:block;text-align:center;text-decoration:none}.experience p{font-size:14px;line-height:1.8;color:#756381}.card .meta{min-height:22px}.card-bottom .kind{font-size:12px}@media(max-width:900px){.type-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:480px){.type-grid{gap:8px;margin-bottom:18px}.type-tile{padding:12px 10px;gap:4px}.type-label{font-size:15px}.type-icon{font-size:21px}.type-number{font-size:12px}.filter-subtitle{display:block}.filter-subtitle span{display:block;margin-top:4px}.intro h1{font-size:29px;letter-spacing:0}}

.type-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.source-location{background:#f3eafd;border-radius:9px;padding:14px;color:#633583!important}.source-entry img{object-fit:contain}@media(max-width:900px){.type-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}@media(max-width:600px){.type-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.gallery h2{font-size:18px;margin:0 0 14px}.gallery h2 small{font-size:14px;font-weight:400;color:var(--muted);margin-left:7px}.gallery-main{position:relative;display:block;width:100%;padding:0;overflow:hidden;border:1px solid #e5d7f1;border-radius:12px;background:#fff;cursor:zoom-in}.gallery-main img{width:100%;height:auto;display:block}.gallery-main span{position:absolute;right:12px;bottom:12px;background:#2c1b41eb;color:#fff;font-size:14px;padding:8px 12px;border-radius:8px}.gallery-thumbs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-top:12px}.gallery-thumbs button{position:relative;border:1px solid #e5d7f1;background:white;border-radius:7px;padding:0;overflow:hidden}.gallery-thumbs img{display:block;width:100%;aspect-ratio:16/9;object-fit:contain}.gallery-thumbs span{position:absolute;bottom:3px;right:5px;background:#fff;color:#2c1b41;padding:2px 5px;font-size:14px}.image-dialog{width:min(1200px,calc(100vw - 24px));max-width:calc(100vw - 24px);max-height:calc(100dvh - 24px);padding:20px}.image-dialog .dialog-head h2{font-size:20px;line-height:1.5}.image-stage{margin-top:18px;overflow:auto;max-height:calc(100dvh - 235px);background:#f7f1fc;min-height:160px;display:flex;align-items:center;justify-content:center}.image-stage img{display:block;max-width:100%;max-height:calc(100dvh - 235px);width:auto;height:auto;object-fit:contain}.image-controls{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:15px;font-size:14px}.image-controls a{color:var(--accent);padding:10px}.image-controls button:disabled{opacity:.4;cursor:default}.image-dialog p{margin:12px 0}.image-dialog .dialog-head{align-items:flex-start}.image-dialog .dialog-head button{flex-shrink:0}@media(max-width:480px){.image-dialog{padding:14px}.image-dialog .dialog-head h2{font-size:18px}.image-controls{gap:9px}.image-controls .outline{font-size:14px}.gallery-main span{right:8px;bottom:8px;font-size:14px}.image-stage img{max-height:calc(100dvh - 250px)}}
.image-stage.zoomed{display:block}.image-stage.zoomed img{max-width:none;max-height:none;width:auto;height:auto}

.brand-tail{display:block;padding-left:0;font-size:14px;line-height:1.5;color:var(--muted);margin-top:2px}.brand{line-height:1.35}.mark{font-size:27px}@media(max-width:480px){.brand{font-size:21px}.brand-tail{font-size:12px;padding-left:0}.mark{font-size:24px}.top{gap:10px}}

.group-tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:22px}.group-tab{display:flex;align-items:center;justify-content:center;gap:8px;padding:12px 18px;border:1px solid #e5d7f1;border-radius:10px;background:#fcf9ff;color:#56346e;font-size:17px;font-weight:600}.group-tab small{font-size:13px;font-weight:400;opacity:.8}.group-tab[aria-pressed=true]{background:var(--accent);color:#fff;border-color:var(--accent)}.category-groups{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-bottom:23px}.category-group{min-width:0;border-right:1px solid #eee5f6;padding-right:18px}.category-group:last-child{border-right:0;padding-right:0}.category-group h2{font-size:15px;color:var(--muted);margin:0 0 10px;font-weight:500}.category-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.category-options .type-tile{padding:12px 11px;gap:3px}.category-options .type-icon{font-size:19px}.category-options .type-label{font-size:15px}.category-options .type-number{font-size:12px}.category-groups.single-group{grid-template-columns:1fr}.single-group .category-options{grid-template-columns:repeat(5,minmax(0,1fr))}.single-group .type-tile{padding:15px}.single-group .type-label{font-size:17px}@media(max-width:900px){.category-groups{grid-template-columns:1fr}.category-group{border-right:0;padding-right:0}.category-options{grid-template-columns:repeat(3,minmax(0,1fr))}.single-group .category-options{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:480px){.group-tabs{gap:6px;margin-bottom:18px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.group-tab{font-size:15px;padding:10px 8px;gap:6px}.category-groups{gap:16px}.category-options,.single-group .category-options{grid-template-columns:repeat(2,minmax(0,1fr))}.single-group .type-label{font-size:15px}.single-group .type-tile{padding:12px 11px}.category-options .type-label{overflow-wrap:anywhere}.results-line{align-items:flex-start}.results-line span{max-width:145px;text-align:right}}
@media(max-width:600px){.category-groups:not(.single-group){display:none}}
@media(max-width:600px){.grid,.related .grid{grid-template-columns:1fr;gap:20px}.cover img{max-height:420px;object-fit:contain}.card-info{padding:18px}.card h2{font-size:21px;line-height:1.5}.description{font-size:16px;line-height:1.85}.card .meta{font-size:14px}.kind,.card-bottom .kind{font-size:14px}.card-bottom button{min-height:44px;font-size:15px;padding:9px 4px}.watch{font-size:14px;padding:10px 14px;bottom:16px;right:14px}.detail-description{font-size:17px;line-height:1.9}.media video{aspect-ratio:auto;height:auto;max-height:70dvh}.selects select{min-height:44px}.image-dialog .image-controls button{min-height:44px}.group-tab{min-height:44px}}

.preview-button{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;min-height:56px;margin-top:18px;padding:14px 16px;border:1px solid var(--accent);border-radius:12px;background:var(--accent);color:#fff;font-size:18px;font-weight:700;line-height:1.5;text-decoration:none;text-align:center;box-shadow:0 5px 14px #7739c724}.preview-button:hover{background:#642caf}.preview-button-secondary{background:#f5edff;color:var(--accent);box-shadow:none}.preview-button-secondary:hover{background:#ead9fc}.preview-button-detail{margin:0 0 18px;min-height:60px;font-size:20px}.card .preview-button+.card-bottom{margin-top:14px}@media(max-width:600px){.preview-button{min-height:60px;font-size:19px}.preview-button-detail{font-size:20px}}

/* Prominent subject and school-stage labels on every case. */
.subject-stage{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:12px 0 15px}.subject-stage span{display:inline-flex;align-items:center;min-height:36px;padding:6px 11px;border-radius:8px;font-size:17px;font-weight:700;line-height:1.4;color:#54258b;background:#efe2ff;border:1px solid #d8bced}.subject-stage .stage-badge{color:#603c79;background:#f7effc;border-color:#e4d3f1}.card-bottom{justify-content:flex-end}.subject-stage-detail{margin:0 0 18px}.subject-stage-detail span{font-size:20px;min-height:42px;padding:8px 14px}@media(max-width:600px){.subject-stage span{font-size:18px;min-height:38px}.subject-stage-detail span{font-size:20px;min-height:42px}}