:root{
  --ink:#13232d;--muted:#667680;--line:#dbe2e5;--paper:#f4f6f6;--white:#fff;
  --navy:#102c3a;--navy-2:#173c4d;--orange:#e67e22;--orange-dark:#bd5b0b;
  --blue:#2c6f91;--green:#397a67;--purple:#72598e;--shadow:0 14px 40px rgba(13,35,46,.10);
  --radius:12px;--header:72px;
}
/* Native text selection and copy menus; canvas editing keeps its pointer gestures. */
body,input,textarea{-webkit-user-select:text;user-select:text;-webkit-touch-callout:default}
button,select,.recognition-media svg{-webkit-user-select:none;user-select:none}
.scene-card,.stat-strip [data-domain-stat],.filter-chip,.scene-domain-toggle,.dimension-toggle,.frame-gallery figcaption{-webkit-user-select:text;user-select:text;-webkit-touch-callout:default}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;font-size:16px;line-height:1.65}button,input,textarea{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}.skip-link{position:fixed;left:16px;top:-80px;z-index:99;background:#fff;padding:10px 14px}.skip-link:focus{top:12px}
.site-header{height:var(--header);padding:0 clamp(20px,4vw,64px);display:flex;align-items:center;gap:34px;background:var(--navy);color:#fff;position:sticky;top:0;z-index:20;box-shadow:0 8px 24px rgba(9,25,34,.18)}
.brand{display:flex;align-items:center;gap:13px;min-width:294px}.brand strong{display:block;font-size:18px;letter-spacing:.06em}.brand small{display:block;font-size:10px;letter-spacing:.16em;color:#9fb5bf}.brand-mark{display:grid;grid-template-columns:repeat(3,6px);gap:3px;align-items:end;width:24px;height:28px}.brand-mark i{display:block;background:var(--orange)}.brand-mark i:nth-child(1){height:14px}.brand-mark i:nth-child(2){height:27px}.brand-mark i:nth-child(3){height:20px}
.primary-nav{display:flex;align-self:stretch}.primary-nav a{display:flex;align-items:center;padding:0 20px;color:#c7d4da;font-size:15px;position:relative}.primary-nav a:hover,.primary-nav a:focus,.primary-nav a.active{color:#fff}.primary-nav a.active:after{content:"";height:3px;position:absolute;left:18px;right:18px;bottom:0;background:var(--orange)}.header-meta{margin-left:auto;color:#a8bac2;font-size:13px;white-space:nowrap}.status-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#6fc7a3;margin-right:8px;box-shadow:0 0 0 4px rgba(111,199,163,.12)}
.account-actions{margin-left:auto;display:flex;align-items:center;gap:8px}.account-actions button{height:36px;padding:0 15px;border:1px solid rgba(255,255,255,.28);background:transparent;color:#e8f0f3;font-size:13px;font-weight:700}.account-actions button:hover,.account-actions button:focus{border-color:#fff;background:rgba(255,255,255,.08)}.account-actions .register-button{border-color:var(--orange);background:var(--orange);color:#17242a}.account-actions .register-button:hover,.account-actions .register-button:focus{background:#f08d34;border-color:#f08d34}
main{max-width:1560px;margin:0 auto;padding:34px clamp(18px,4vw,64px) 54px}.library-intro{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;margin-bottom:28px}.library-intro h1{font-size:clamp(30px,3.4vw,48px);line-height:1.16;margin:4px 0 10px;letter-spacing:.01em}.library-intro>div>p:last-child{max-width:760px;margin:0;color:var(--muted)}.eyebrow{margin:0;color:var(--orange-dark);font:700 12px/1.5 Arial,sans-serif;letter-spacing:.16em}.stat-strip{margin:0;display:grid;grid-template-columns:repeat(4,minmax(76px,1fr));min-width:420px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}.stat-strip div{padding:14px 18px;border-left:1px solid var(--line)}.stat-strip div:first-child{border-left:0}.stat-strip dt{font:bold 26px/1.2 Arial,sans-serif;color:var(--navy)}.stat-strip dd{margin:3px 0 0;color:var(--muted);font-size:12px}
.stat-strip [data-domain-stat]{position:relative;cursor:pointer;transition:background .16s ease,box-shadow .16s ease}.stat-strip [data-domain-stat]:hover,.stat-strip [data-domain-stat]:focus-visible{background:#f7fafb;outline:2px solid var(--orange);outline-offset:-2px}.stat-strip [data-domain-stat].active{background:#fff6ee;box-shadow:inset 0 4px 0 var(--orange)}.stat-strip [data-domain-stat].active dt{color:var(--orange-dark)}.stat-strip [data-domain-stat].active dd{color:var(--navy);font-weight:700}.stat-strip [data-domain-stat] small{display:block;margin-top:5px;color:#87959b;font-size:10px;line-height:1.35;white-space:nowrap}.stat-strip [data-domain-stat].active small{color:#9a5a25}
.stat-summary{min-width:420px;max-width:520px}.stat-summary .stat-strip{min-width:0}.library-intro .stat-summary .stat-scope-note{margin:8px 0 0;color:var(--muted);font-size:12px;line-height:1.6}
.workspace{display:grid;grid-template-columns:300px minmax(0,1fr);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);min-height:620px}.filter-panel{padding:24px;border-right:1px solid var(--line);background:#fbfcfc}.panel-heading,.result-toolbar>div:first-child,.reference-heading{display:flex;align-items:center;gap:10px}.panel-heading{justify-content:space-between}.panel-heading>div{display:flex;align-items:center;gap:10px}.panel-heading h2,.result-toolbar h2,.reference-heading h2{margin:0;font-size:18px;line-height:1.3}.section-index{display:inline-grid;place-items:center;min-width:30px;height:24px;background:var(--navy);color:#fff;font:bold 11px Arial,sans-serif;letter-spacing:.08em}.text-button{border:0;background:none;color:var(--orange-dark);font-size:13px;padding:5px}.panel-note{font-size:13px;line-height:1.65;color:var(--muted);padding:12px 0 16px;margin:0;border-bottom:1px solid var(--line)}
.scene-tree{margin-top:15px}.tree-root{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:8px;background:var(--navy);color:#fff;padding:11px 12px;position:relative}.tree-root:after{content:"";position:absolute;left:25px;top:100%;height:17px;border-left:2px solid #b9c6cb}.tree-root strong{font-size:15px}.tree-root small{font-size:11px;color:#afc1c9}.tree-level{display:inline-block;padding:2px 5px;background:var(--orange);color:#182a32;font:700 9px/1.4 Arial,sans-serif;letter-spacing:.04em}.tree-dimensions{margin-left:24px;border-left:2px solid #b9c6cb;padding-left:16px}.filter-group{padding:15px 0 14px;border-bottom:1px solid var(--line);position:relative}.filter-group:before{content:"";position:absolute;left:-16px;top:27px;width:13px;border-top:2px solid #b9c6cb}.filter-group h3{font-size:14px;margin:0 0 10px;display:flex;align-items:center;justify-content:space-between}.filter-group h3>span{display:flex;align-items:center;gap:7px}.filter-group h3 .tree-level{font-style:normal;background:#e1e8eb;color:#47606b}.filter-group h3 small{font:12px Arial,sans-serif;color:#8b989e}.filter-options{display:flex;flex-wrap:wrap;gap:7px}.filter-chip{border:1px solid #ccd6da;background:#fff;color:#52636c;border-radius:0;padding:6px 9px;font-size:12px;transition:.16s ease}.filter-chip>i{display:none}.filter-chip:hover,.filter-chip:focus{border-color:var(--navy-2);color:var(--navy)}.filter-chip.active{background:var(--navy);border-color:var(--navy);color:#fff}.filter-chip b{font:700 10px Arial,sans-serif;color:var(--orange-dark);margin-right:4px}.filter-chip.active b{color:#ffc48d}.taxonomy-toggle{width:100%;margin-top:16px;padding:9px;border:1px solid var(--line);background:#fff;color:var(--navy);font-size:13px}.taxonomy-toggle span{float:right}
.result-panel{min-width:0;padding:24px 28px}.search-row{display:flex;gap:12px;margin-bottom:24px}.search-box{height:46px;display:flex;align-items:center;gap:10px;flex:1;border:1px solid #cbd5d9;background:#fff;padding:0 14px;transition:.16s}.search-box:focus-within{border-color:var(--blue);box-shadow:0 0 0 3px rgba(44,111,145,.10)}.search-box>span{width:14px;height:14px;border:2px solid var(--navy);border-radius:50%;position:relative}.search-box>span:after{content:"";width:6px;height:2px;background:var(--navy);position:absolute;right:-5px;bottom:-2px;transform:rotate(45deg)}.search-box input{border:0;outline:0;min-width:0;flex:1;color:var(--ink);background:transparent}.search-box kbd{font:11px Arial,sans-serif;color:#7b898f;border:1px solid var(--line);padding:2px 6px;background:#f7f8f8}.primary-button,.secondary-button{border:0;padding:11px 18px;font-weight:700;font-size:14px;transition:.16s}.primary-button{background:var(--orange);color:#17242a}.primary-button:hover,.primary-button:focus{background:#f08d34;transform:translateY(-1px)}.secondary-button{background:#e8edef;color:var(--navy)}
.result-toolbar{display:flex;align-items:center;justify-content:space-between;padding-bottom:12px;border-bottom:1px solid var(--line)}.result-count{color:var(--muted);font-size:13px;margin-left:2px}.view-actions{display:flex;border:1px solid var(--line)}.view-button{width:36px;height:32px;border:0;background:#fff;color:#718087}.view-button+button{border-left:1px solid var(--line)}.view-button.active{background:var(--navy);color:#fff}.active-filters{display:flex;gap:7px;flex-wrap:wrap;min-height:30px;padding:9px 0}.active-filter{border:0;background:#fff1e6;color:#8e4308;padding:3px 8px;font-size:12px}.active-filter:after{content:" ×"}
.clear-filters{border:1px solid var(--line);background:#fff;color:var(--navy);padding:3px 8px;font-size:12px}.clear-filters:hover,.clear-filters:focus-visible{border-color:var(--navy)}.filter-notice{margin:0 0 10px;padding:7px 10px;background:#fff6ee;color:#874507;font-size:12px}.filter-notice[hidden]{display:none}
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.scene-card{background:#fff;border:1px solid var(--line);min-width:0;transition:.18s ease;cursor:pointer;position:relative}.scene-card:hover{border-color:#aabac1;transform:translateY(-2px);box-shadow:0 12px 26px rgba(16,44,58,.10)}.scene-image{aspect-ratio:16/9;background:linear-gradient(135deg,#dce4e7,#bbc8cd);overflow:hidden;position:relative}.scene-image img{width:100%;height:100%;object-fit:cover;display:block}.scene-image.placeholder:before{content:"ROAD SCENE";position:absolute;inset:0;display:grid;place-items:center;color:#6a7b83;font:bold 11px Arial,sans-serif;letter-spacing:.18em;background:linear-gradient(145deg,transparent 48%,rgba(255,255,255,.28) 49%,rgba(255,255,255,.28) 52%,transparent 53%)}.review-badge{position:absolute;left:10px;top:10px;padding:4px 7px;background:rgba(16,44,58,.9);color:#fff;font-size:11px}.review-badge.confirmed{background:rgba(43,111,85,.92)}.scene-body{padding:14px}.scene-code{font:700 10px Arial,sans-serif;color:var(--orange-dark);letter-spacing:.10em}.scene-card h3{font-size:15px;margin:4px 0 8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.scene-meta{margin:0;color:var(--muted);font-size:12px;display:flex;justify-content:space-between;gap:8px}.tag-row{display:flex;gap:5px;flex-wrap:wrap;margin-top:11px;min-height:25px}.tag{display:inline-flex;align-items:center;background:#edf2f4;color:#38515d;padding:3px 7px;font-size:11px}.tag b{color:var(--orange-dark);font:700 10px Arial,sans-serif;margin-right:4px}.tag.pending{background:#f3f0ea;color:#766957}.loading-card{height:248px;border:1px solid var(--line);background:linear-gradient(90deg,#f1f3f3 25%,#fafbfb 37%,#f1f3f3 63%);background-size:400% 100%;animation:loading 1.3s ease infinite}@keyframes loading{0%{background-position:100% 0}100%{background-position:0 0}}.empty-state{text-align:center;padding:80px 20px;color:var(--muted)}.empty-state strong{color:var(--ink);font-size:18px}.scene-grid.list{grid-template-columns:1fr}.scene-grid.list .scene-card{display:grid;grid-template-columns:220px 1fr}.scene-grid.list .scene-image{aspect-ratio:16/8}.scene-grid.list .scene-body{align-self:center}.empty-state.taxonomy-empty{padding:34px 0;text-align:left}.empty-state.taxonomy-empty>strong{display:block;margin-bottom:2px}.empty-taxonomy-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:22px}.empty-taxonomy-grid section{border:1px solid var(--line);border-top:4px solid var(--blue);background:#f8fafa;padding:14px}.empty-taxonomy-grid section:nth-child(2){border-top-color:var(--green)}.empty-taxonomy-grid section:nth-child(3){border-top-color:var(--orange)}.empty-taxonomy-grid section:nth-child(4){border-top-color:var(--purple)}.empty-taxonomy-grid h3{margin:0 0 9px;color:var(--ink);font-size:14px}.empty-taxonomy-grid h3 small{color:var(--muted);font-weight:400}.empty-taxonomy-grid section>div{display:flex;flex-wrap:wrap;gap:6px}.empty-taxonomy-grid span{background:#fff;border:1px solid var(--line);padding:4px 7px;color:#435861;font-size:11px}.empty-taxonomy-grid b{margin-right:4px;color:var(--orange-dark);font:700 10px Arial,sans-serif}
.taxonomy-reference{margin-top:28px;background:#fff;border:1px solid var(--line);padding:28px;box-shadow:var(--shadow)}.reference-heading{align-items:flex-start;margin-bottom:20px}.reference-heading p{margin:4px 0 0;color:var(--muted);font-size:13px}.taxonomy-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.taxonomy-card{border-top:4px solid var(--blue);background:#f7f9f9;padding:16px}.taxonomy-card:nth-child(2){border-color:var(--green)}.taxonomy-card:nth-child(3){border-color:var(--orange)}.taxonomy-card:nth-child(4){border-color:var(--purple)}.taxonomy-card h3{margin:0 0 10px;font-size:15px}.taxonomy-card ul{list-style:none;padding:0;margin:0}.taxonomy-card li{padding:8px 0;border-top:1px solid var(--line);font-size:12px}.taxonomy-card li:first-child{border-top:0}.taxonomy-card code{font:bold 10px Arial,sans-serif;color:var(--orange-dark);margin-right:5px}.taxonomy-card span{display:block;color:var(--muted);margin-top:2px;line-height:1.5}
.site-footer{max-width:1560px;margin:0 auto;padding:20px clamp(18px,4vw,64px);display:flex;justify-content:space-between;border-top:1px solid var(--line);color:#718087;font-size:12px}.contact-footer{background:#fff;border-top:1px solid var(--line)}.contact-footer-inner{max-width:1560px;margin:0 auto;padding:34px clamp(18px,4vw,64px);display:grid;grid-template-columns:minmax(300px,1fr) minmax(410px,1.2fr) minmax(280px,.85fr);gap:36px;align-items:center}.footer-identity{display:flex;align-items:center;gap:15px;min-width:0}.footer-identity img{width:76px;height:76px;object-fit:contain;background:#fff;flex:none}.footer-identity strong,.footer-identity span{display:block}.footer-identity strong{font-size:16px;color:var(--navy)}.footer-identity span{font-size:13px;color:var(--muted);margin-top:3px}.footer-itvr{justify-content:flex-end}.footer-itvr img{width:82px;height:82px}.footer-itvr div{max-width:210px}.footer-contact{font-style:normal;display:grid;grid-template-columns:auto auto;gap:7px 24px;color:#53656e;font-size:13px}.footer-contact span:nth-child(3),.footer-contact span:nth-child(4){grid-column:1/-1}.footer-contact b{display:inline-block;min-width:38px;color:var(--navy)}.footer-contact a:hover,.footer-contact a:focus{color:var(--orange-dark);text-decoration:underline}.footer-bottom{border-top:1px solid var(--line);padding:12px clamp(18px,4vw,64px);display:flex;justify-content:space-between;color:#7b898f;font-size:11px;max-width:1560px;margin:0 auto}.account-dialog{width:min(430px,calc(100% - 30px));padding:30px}.account-dialog h2{margin:4px 42px 8px 0;font-size:24px}.account-dialog>p:not(.eyebrow){color:var(--muted);margin:0 0 22px}.account-dialog .primary-button{width:100%}
dialog{border:0;padding:0;box-shadow:0 28px 80px rgba(4,17,24,.35);max-height:90vh;color:var(--ink)}dialog::backdrop{background:rgba(5,18,25,.72);backdrop-filter:blur(3px)}.dialog-close{position:absolute;right:14px;top:12px;width:34px;height:34px;border:0;background:#eef2f3;color:var(--ink);font-size:24px;z-index:2}.scene-dialog{width:min(980px,calc(100% - 30px))}.detail-layout{display:grid;grid-template-columns:1.1fr .9fr;min-height:500px}.detail-media{background:#172c36;display:grid;place-items:center}.detail-media img{width:100%;height:100%;max-height:680px;object-fit:contain}.detail-content{padding:34px}.detail-content h2{font-size:24px;line-height:1.35;margin:5px 42px 8px 0}.detail-content>p{color:var(--muted);font-size:13px}.detail-section{margin-top:22px;padding-top:16px;border-top:1px solid var(--line)}.detail-section h3{font-size:13px;margin:0 0 10px;text-transform:uppercase;letter-spacing:.08em}.detail-list{display:grid;grid-template-columns:1fr 1fr;gap:10px}.detail-list div{background:#f4f6f6;padding:9px 10px}.detail-list dt{font-size:11px;color:var(--muted)}.detail-list dd{margin:2px 0 0;font-size:13px}.detection-list{font-size:12px;color:var(--muted)}
.detail-image-trigger{width:100%;height:100%;min-height:500px;display:grid;place-items:center;position:relative;padding:0;border:0;background:transparent;cursor:zoom-in}.detail-image-trigger:focus-visible{outline:3px solid var(--orange);outline-offset:-3px}.detail-image-hint{position:absolute;right:14px;bottom:14px;padding:5px 9px;background:rgba(16,44,58,.88);color:#fff;font-size:12px}.image-dialog{width:min(96vw,1600px);height:min(94vh,1000px);max-width:none;max-height:none;padding:48px 16px 16px;background:#172c36}.image-dialog img{display:block;width:100%;height:100%;object-fit:contain}
.detail-technical{margin-top:22px;padding-top:16px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}.detail-technical summary{cursor:pointer;color:var(--navy);font-weight:700}.detail-technical dl{margin:12px 0 0}.detail-technical dl div+div{margin-top:9px}.detail-technical dt{font-size:11px}.detail-technical dd{margin:2px 0 0;overflow-wrap:anywhere;color:var(--ink)}
.upload-dialog{width:min(980px,calc(100% - 30px));padding:30px}.upload-dialog header h2{margin:3px 0 4px}.upload-dialog header p:last-child{margin:0;color:var(--muted);font-size:13px}.upload-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:20px 0}.drop-zone{min-height:230px;border:1px dashed #9cadaf;background:#f4f7f7;display:grid;place-items:center;text-align:center;position:relative;overflow:hidden}.drop-zone input{position:absolute;inset:0;opacity:0;cursor:pointer}.drop-zone img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;background:#13232d}.drop-zone span{display:grid;gap:4px}.drop-zone small{color:var(--muted)}.upload-fields{display:grid;gap:11px}.upload-fields label{font-size:12px;color:var(--muted)}.upload-fields input,.upload-fields textarea{display:block;width:100%;margin-top:4px;padding:9px;border:1px solid #cbd5d9;background:#fff;color:var(--ink)}.upload-dialog fieldset{border:1px solid var(--line);padding:16px}.upload-dialog legend{padding:0 7px;font-weight:700;font-size:14px}.upload-labels{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.upload-label-group h3{font-size:13px;margin:0 0 7px}.upload-label-group label{display:flex;align-items:center;gap:7px;font-size:12px;padding:4px 0}.upload-label-group input{accent-color:var(--orange)}.upload-dialog form>footer{display:flex;justify-content:flex-end;gap:9px;margin-top:18px}.form-status{min-height:24px;margin-top:10px;font-size:13px}.form-status.error{color:#aa2f24}.form-status.success{color:#2f765d}
.video-picker{display:block;margin-top:20px;font-size:13px;font-weight:700}.video-picker input{display:block;margin:9px 0;width:100%;padding:12px;border:1px dashed #9cadaf;background:#f4f7f7}.video-picker small{display:block;color:var(--muted);font-weight:400}.video-records{border-top:1px solid var(--line);margin-top:24px;padding-top:16px}.video-records h3{font-size:14px;margin:0 0 10px}.video-records ul{list-style:none;margin:0;padding:0;max-height:220px;overflow:auto}.video-records li{display:flex;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);padding:8px 0;font-size:12px}.video-records li span{color:var(--muted);white-space:nowrap}.video-records p{font-size:12px;color:var(--muted)}
.video-upload-preview{display:block;width:min(100%,520px);max-height:280px;margin:10px 0;background:#172c36}.video-upload-preview[hidden],.video-frames[hidden],.frame-pages[hidden]{display:none}.video-records li{align-items:center}.video-records li>div:first-child{display:grid;gap:3px;min-width:0}.video-records li strong{overflow-wrap:anywhere}.video-records li button{flex:none}.video-frames{border-top:1px solid var(--line);margin-top:20px;padding-top:18px}.video-frames h3{margin:0;font-size:16px}.video-frames>p{font-size:12px;color:var(--muted)}.frame-options{display:flex;align-items:end;gap:10px;flex-wrap:wrap;margin-top:14px}.frame-options label{display:grid;gap:4px;color:var(--muted);font-size:12px}.frame-options label[hidden]{display:none}.frame-options select,.frame-options input{min-width:155px;padding:9px;border:1px solid #cbd5d9;background:#fff;color:var(--ink)}.frame-options button{height:38px}.frame-hint{line-height:1.5}.frame-gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px;margin-top:12px}.frame-gallery figure{margin:0;border:1px solid var(--line);background:#f4f7f7}.frame-image-trigger{display:block;width:100%;padding:0;border:0;background:#172c36;cursor:zoom-in}.frame-image-trigger:focus-visible{outline:3px solid var(--orange);outline-offset:2px}.frame-gallery img{display:block;width:100%;aspect-ratio:16/9;object-fit:contain;background:#172c36}.frame-gallery figcaption{padding:6px 8px;font-size:11px;color:var(--muted)}.frame-pages{display:flex;justify-content:center;align-items:center;gap:12px;margin-top:14px}.frame-pages span{font-size:12px;color:var(--muted)}
.video-preview-name{margin:12px 0 4px;font-size:13px;font-weight:700;overflow-wrap:anywhere}.video-record-actions{display:flex;flex-wrap:wrap;gap:6px;justify-content:flex-end}.video-record-actions button{white-space:nowrap}@media(max-width:560px){.video-records li{align-items:flex-start;flex-direction:column}.video-record-actions{justify-content:flex-start}}
.frame-recognize{display:block;width:100%;margin-top:5px;padding:5px 8px;font-size:11px}.frame-recognize:disabled{opacity:.55;cursor:wait}.recognition-dialog{width:min(1100px,calc(100% - 30px));padding:28px;overflow:auto}.recognition-dialog h2{margin:0 40px 4px 0}.recognition-dialog>.frame-hint{margin:0;color:var(--muted);font-size:13px}.recognition-layout{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(260px,.6fr);gap:20px;margin-top:12px}.recognition-media{position:relative;align-self:start;background:#172c36;line-height:0}.recognition-media img{display:block;width:100%;height:auto}.recognition-media svg{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}.recognition-layout section{border-top:1px solid var(--line);padding:12px 0;font-size:13px}.recognition-layout section:first-child{border-top:0}.recognition-layout h3{margin:0 0 6px;font-size:15px}.recognition-layout p{margin:5px 0;color:var(--muted)}.recognition-layout ul{margin:8px 0;padding-left:20px}.recognition-layout details{margin-top:10px;overflow-wrap:anywhere}@media(max-width:760px){.recognition-layout{grid-template-columns:1fr}}
.recognition-media svg.drawing{pointer-events:auto;cursor:crosshair;touch-action:none}.review-labels{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.review-labels fieldset{min-width:0;border:1px solid var(--line);padding:8px}.review-labels legend{font-weight:700}.review-labels label{display:block;margin:5px 0;line-height:1.4}.review-box{display:grid;grid-template-columns:minmax(120px,1fr) repeat(4,minmax(46px,65px)) auto;align-items:end;gap:4px;margin:7px 0}.review-box label{display:grid;gap:2px;font-size:11px}.review-box input,.review-box select{width:100%;min-width:0;padding:5px;border:1px solid #cbd5d9}.review-box button{height:32px}.recognition-review-form{border-top:2px solid var(--line)}#recognition-review-form>button{margin:8px 5px 0 0}#recognition-review-form h3{margin:16px 0 7px}@media(max-width:760px){.recognition-layout{grid-template-columns:1fr}.review-labels{grid-template-columns:1fr}.review-box{grid-template-columns:repeat(4,minmax(45px,1fr))}.review-box label:first-child{grid-column:1/-2}}
.recognition-media svg.editing{pointer-events:auto;touch-action:none}.recognition-media svg .review-box-shape{cursor:move;pointer-events:all}.recognition-media svg.drawing .review-box-shape{cursor:crosshair}.recognition-media svg text{pointer-events:none}.recognition-image-tools{position:absolute;right:8px;bottom:8px;z-index:1;display:flex;align-items:center;gap:8px;padding:6px;background:rgba(16,44,58,.9);color:#fff;font-size:12px;line-height:1.4}.recognition-image-tools[hidden]{display:none}.recognition-image-tools button{padding:5px 8px;font-size:12px}.recognition-image-tools button:disabled{opacity:.5;cursor:not-allowed}.review-box.selected{outline:2px solid #da8a34;outline-offset:2px;background:#fff7e9}
.recognition-media svg .review-resize-handle{pointer-events:all;cursor:nwse-resize}.recognition-media svg .review-resize-handle[data-review-handle="ne"],.recognition-media svg .review-resize-handle[data-review-handle="sw"]{cursor:nesw-resize}.recognition-media svg.drawing .review-resize-handle{cursor:crosshair}
.annotated-media,.full-image-media{position:relative;display:inline-block;max-width:100%;line-height:0}.detail-image-trigger .annotated-media img{display:block;width:auto;height:auto;max-width:100%;max-height:680px}.annotated-media svg,.full-image-media svg{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}.detail-review-badge{position:absolute;left:14px;top:14px;padding:5px 9px;background:rgba(18,70,67,.9);color:#fff;font-size:12px}.image-dialog[open]{display:flex;align-items:center;justify-content:center}.image-dialog .full-image-media img{display:block;width:auto;height:auto;max-width:calc(96vw - 32px);max-height:calc(94vh - 64px)}
#frame-merge[hidden],.frame-gallery figure[hidden]{display:none}.frame-gallery .frame-group-member{border-style:dashed}.frame-gallery .frame-group-member figcaption:before{content:'相似帧 · ';color:var(--green)}.frame-gallery .frame-toggle,.frame-gallery .frame-delete{display:block;width:100%;margin-top:5px;padding:5px 8px;font-size:11px}.frame-gallery .frame-delete{background:#fff;color:#a42d24;border:1px solid #a42d24}.frame-gallery .frame-delete:hover{background:#fff2f0}
.frame-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.frame-actions [hidden]{display:none}.frame-actions button{font-size:12px;padding:8px 11px}.frame-delete-selected{background:#fff;color:#a42d24;border:1px solid #a42d24;font-weight:700}.frame-delete-selected:disabled{opacity:.5;cursor:not-allowed}.frame-gallery .frame-select{display:inline-flex;align-items:center;gap:4px;cursor:pointer;font-size:12px;color:var(--ink)}.frame-gallery .frame-select input{width:16px;height:16px;accent-color:var(--navy)}
@media(max-width:1100px){.header-meta{display:none}.scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.taxonomy-cards{grid-template-columns:repeat(2,1fr)}.stat-strip{min-width:360px}.brand{min-width:250px}.primary-nav a{padding:0 12px}.contact-footer-inner{grid-template-columns:1fr 1fr}.footer-contact{grid-column:1/-1;grid-row:2}.footer-itvr{justify-content:flex-end}}
@media(max-width:820px){:root{--header:64px}.site-header{gap:12px}.brand{min-width:0}.brand small{display:none}.brand strong{font-size:15px}.primary-nav{margin-left:auto}.primary-nav a{font-size:13px;padding:0 8px}.account-actions{margin-left:0}.account-actions button{padding:0 10px;height:34px}.library-intro{align-items:stretch;flex-direction:column}.stat-summary{min-width:0;max-width:none;width:100%}.stat-strip{min-width:0;width:100%}.workspace{grid-template-columns:1fr}.filter-panel{border-right:0;border-bottom:1px solid var(--line)}.result-panel{padding:20px}.detail-layout{grid-template-columns:1fr}.detail-media,.detail-image-trigger{min-height:280px}.upload-labels{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){main{padding-top:22px}.brand-mark{display:none}.brand strong{font-size:13px}.primary-nav a:first-child{display:none}.primary-nav a{padding:0 6px}.account-actions{gap:4px}.account-actions button{padding:0 7px;font-size:12px}.library-intro h1{font-size:30px}.stat-strip{grid-template-columns:repeat(2,1fr)}.stat-strip div:nth-child(3){border-left:0;border-top:1px solid var(--line)}.stat-strip div:nth-child(4){border-top:1px solid var(--line)}.workspace{border-left:0;border-right:0}.search-row{flex-direction:column}.scene-grid{grid-template-columns:1fr}.scene-grid.list .scene-card{grid-template-columns:1fr}.taxonomy-cards,.empty-taxonomy-grid{grid-template-columns:1fr}.upload-grid,.upload-labels{grid-template-columns:1fr}.site-footer{display:block}.site-footer span{display:block}.detail-content{padding:24px}.result-toolbar .view-actions{display:none}.contact-footer-inner{grid-template-columns:1fr;gap:24px}.footer-itvr{justify-content:flex-start}.footer-contact{grid-column:1;grid-row:auto;grid-template-columns:1fr}.footer-contact span{grid-column:1!important}.footer-bottom{display:block}.footer-bottom span{display:block}}

/* Overview */
.overview-main{padding-top:0}.overview-hero{min-height:660px;display:grid;grid-template-columns:1fr 1fr;gap:clamp(34px,7vw,110px);align-items:center;padding:64px 0}.hero-copy h1{font-size:clamp(42px,5vw,72px);line-height:1.13;letter-spacing:-.035em;margin:8px 0 24px}.hero-copy h1 em{color:var(--orange-dark);font-style:normal}.hero-copy>p:not(.eyebrow){max-width:670px;color:var(--muted);font-size:18px}.hero-actions{display:flex;gap:10px;margin-top:30px}.hero-actions a{display:inline-block}.hero-stats{display:flex;gap:38px;margin:42px 0 0;padding-top:22px;border-top:1px solid var(--line)}.hero-stats div{min-width:100px}.hero-stats dt{font:bold 28px Arial,sans-serif}.hero-stats dd{margin:3px 0 0;color:var(--muted);font-size:12px}.taxonomy-map{background:var(--navy);color:#fff;padding:30px;box-shadow:24px 24px 0 #dbe2e5;position:relative}.taxonomy-map:before{content:"";position:absolute;inset:10px;border:1px solid rgba(255,255,255,.08);pointer-events:none}.map-axis{height:70px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:14px;padding:0 6px 14px;color:#9fb5bf;font-size:11px;text-transform:uppercase;letter-spacing:.1em}.map-axis i{height:1px;background:#43616f;position:relative}.map-axis i:after{content:"";position:absolute;right:0;top:-3px;border-left:6px solid #43616f;border-top:3px solid transparent;border-bottom:3px solid transparent}.map-axis strong{color:var(--orange);font-size:11px}.taxonomy-map section{display:grid;grid-template-columns:54px 1fr;gap:14px;align-items:center;padding:18px 8px;border-top:1px solid #34515f}.taxonomy-map section>b{display:grid;place-items:center;width:44px;height:44px;background:#1f4658;color:var(--orange);font:700 17px Arial,sans-serif}.taxonomy-map h2{font-size:16px;margin:0}.taxonomy-map p{font-size:12px;color:#a9bac2;margin:3px 0 0}.purpose-section{padding:56px 0}.section-title{display:flex;align-items:center;gap:12px;margin-bottom:22px}.section-title h2{margin:2px 0 0;font-size:26px}.section-title p{margin:0}.purpose-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.purpose-grid article{background:#fff;border:1px solid var(--line);padding:26px;min-height:220px}.purpose-grid article>span{font:bold 11px Arial,sans-serif;color:var(--orange-dark)}.purpose-grid h3{font-size:20px;margin:28px 0 8px}.purpose-grid p{color:var(--muted);font-size:14px;margin:0}.boundary-section{margin:30px 0 20px;padding:40px;background:#e4eaec;display:grid;grid-template-columns:260px 1fr;gap:24px 50px;align-items:center}.boundary-section h2{margin:5px 0 0;font-size:24px}.boundary-flow{display:flex;align-items:center;gap:9px;flex-wrap:wrap}.boundary-flow span,.boundary-flow strong{background:#fff;padding:10px 13px;font-size:13px}.boundary-flow strong{background:var(--orange);color:#152630}.boundary-flow i{font-style:normal;color:#7b8d95}.boundary-section>p{grid-column:2;color:var(--muted);font-size:13px;margin:0}

/* Dataset */
.dataset-main{padding-top:44px}.dataset-head{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;padding-bottom:38px}.dataset-head h1{font-size:clamp(32px,4vw,52px);line-height:1.2;margin:5px 0 10px}.dataset-head>div>p:last-child{max-width:700px;color:var(--muted);margin:0}.dataset-section{padding:42px 0;border-top:1px solid var(--line)}.dataset-flow{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line)}.dataset-flow li{padding:24px;display:flex;gap:14px;min-height:180px;border-left:1px solid var(--line)}.dataset-flow li:first-child{border-left:0}.dataset-flow b{font:bold 11px Arial,sans-serif;color:var(--orange-dark)}.dataset-flow h3{margin:0 0 8px;font-size:17px}.dataset-flow p{margin:0;color:var(--muted);font-size:13px}.dataset-two-column{display:grid;grid-template-columns:1.25fr .75fr;gap:30px}.schema-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line)}.schema-table th,.schema-table td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--line);font-size:13px}.schema-table th{background:var(--navy);color:#fff}.schema-table td:first-child{width:150px;font-weight:700}.quality-card{background:var(--navy);color:#fff;padding:28px}.quality-card h2{margin:4px 0 14px}.quality-card ul{padding-left:20px;color:#c0d0d7;font-size:13px}.quality-card li{margin:10px 0}.quality-card .primary-button{display:inline-block;margin-top:12px}.latest-scenes{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.latest-record{background:#fff;border:1px solid var(--line);padding:18px}.latest-record code{font:bold 10px Arial,sans-serif;color:var(--orange-dark)}.latest-record h3{font-size:15px;margin:6px 0}.latest-record p{font-size:12px;color:var(--muted);margin:0}.latest-record .tag-row{margin-top:9px}
@media(max-width:960px){.overview-hero{grid-template-columns:1fr;min-height:0}.taxonomy-map{box-shadow:14px 14px 0 #dbe2e5}.purpose-grid{grid-template-columns:1fr}.boundary-section{grid-template-columns:1fr}.boundary-section>p{grid-column:1}.dataset-head{display:block}.dataset-head .stat-strip{margin-top:25px}.dataset-flow{grid-template-columns:repeat(2,1fr)}.dataset-flow li:nth-child(3){border-left:0;border-top:1px solid var(--line)}.dataset-flow li:nth-child(4){border-top:1px solid var(--line)}.dataset-two-column{grid-template-columns:1fr}.latest-scenes{grid-template-columns:1fr}}
@media(max-width:560px){.overview-hero{padding:40px 0}.hero-copy h1{font-size:39px}.hero-copy>p:not(.eyebrow){font-size:16px}.hero-stats{gap:18px;flex-wrap:wrap}.taxonomy-map{padding:20px;box-shadow:8px 8px 0 #dbe2e5}.taxonomy-map section{grid-template-columns:44px 1fr}.taxonomy-map section>b{width:36px;height:36px}.boundary-section{padding:25px}.dataset-flow{grid-template-columns:1fr}.dataset-flow li{border-left:0;border-top:1px solid var(--line)}.dataset-flow li:first-child{border-top:0}}

/* Label exemplar and batch import management */
.search-row{align-items:stretch}.search-box{min-width:240px}.library-actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}.primary-button,.secondary-button{white-space:nowrap}.secondary-button:hover,.secondary-button:focus{background:#dce5e8}
.taxonomy-card{padding:14px}.taxonomy-card>h3{margin:0 0 12px;font-size:16px}.exemplar-list{display:grid;gap:12px}.exemplar-item{background:#fff;border:1px solid var(--line);overflow:hidden}.exemplar-media{aspect-ratio:16/9;background:repeating-linear-gradient(135deg,#eef2f3,#eef2f3 10px,#f7f9f9 10px,#f7f9f9 20px);display:grid;place-items:center;overflow:hidden}.exemplar-media img{width:100%;height:100%;object-fit:cover;display:block}.exemplar-media span{display:block;color:#8a999f;font-size:12px;text-align:center;margin:0}.exemplar-media span b{display:block;font:bold 18px Arial,sans-serif;color:#9aa8ae;margin-bottom:3px}.exemplar-info{padding:10px}.exemplar-info>div{display:flex;align-items:center;gap:6px}.exemplar-info code{font:bold 10px Arial,sans-serif;color:var(--orange-dark);margin:0}.exemplar-info strong{font-size:13px}.exemplar-info p{min-height:55px;margin:6px 0;color:var(--muted);font-size:11px;line-height:1.55}.exemplar-button{width:100%;border:1px solid #c9d4d8;background:#fff;color:var(--navy);padding:6px 8px;font-size:12px;font-weight:700}.exemplar-button:hover,.exemplar-button:focus{border-color:var(--orange);color:var(--orange-dark);background:#fff7f0}
.footer-contact{grid-template-columns:minmax(250px,1.35fr) minmax(170px,.65fr);grid-template-areas:"address email" "phone post"}.footer-contact span:nth-child(1){grid-area:address}.footer-contact span:nth-child(2){grid-area:email}.footer-contact span:nth-child(3){grid-area:phone}.footer-contact span:nth-child(4){grid-area:post}.footer-contact span{grid-column:auto!important}
.batch-dialog{width:min(1040px,calc(100% - 30px))}.batch-file-picker{margin:20px 0 14px;min-height:88px;border:1px dashed #9cadaf;background:#f4f7f7;display:flex;align-items:center;justify-content:center;gap:14px;position:relative}.batch-file-picker input{position:absolute;inset:0;opacity:0;cursor:pointer}.batch-file-picker strong{color:var(--navy)}.batch-file-picker span{color:var(--muted);font-size:13px}.batch-fields{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:16px}.batch-fields label{font-size:12px;color:var(--muted)}.batch-fields input{display:block;width:100%;margin-top:4px;padding:9px;border:1px solid #cbd5d9}.batch-progress{margin-top:14px}.batch-progress>div{height:8px;background:#e4eaec;overflow:hidden}.batch-progress>div span{display:block;width:0;height:100%;background:var(--orange);transition:width .18s}.batch-progress p{margin:5px 0 0;color:var(--muted);font-size:12px}.exemplar-dialog{width:min(620px,calc(100% - 30px))}.exemplar-picker{height:310px;margin-top:20px;border:1px dashed #9cadaf;background:#f4f7f7;display:grid;place-items:center;position:relative;overflow:hidden}.exemplar-picker input{position:absolute;inset:0;opacity:0;cursor:pointer}.exemplar-picker img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;background:#13232d}.exemplar-picker span{display:grid;text-align:center;gap:4px}.exemplar-picker small{color:var(--muted)}
@media(max-width:1180px){.search-row{flex-direction:column}.library-actions{justify-content:flex-start}.library-actions button{flex:1}.taxonomy-cards{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.library-actions{display:grid;grid-template-columns:1fr}.taxonomy-cards{grid-template-columns:1fr}.batch-fields{grid-template-columns:1fr}.batch-file-picker{flex-direction:column;gap:2px}.exemplar-picker{height:230px}.footer-contact{grid-template-columns:1fr;grid-template-areas:"address" "phone" "email" "post"}}

/* Collapsible scenario hierarchy */
.root-toggle{grid-template-columns:1fr auto}
.tree-root{display:block;padding:0}.tree-toggle{width:100%;border:0;text-align:left;cursor:pointer}.root-toggle{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:8px;background:var(--navy);color:#fff;padding:11px 12px}.root-toggle>i{font:normal 19px/1 Arial,sans-serif;color:var(--orange)}.dimension-toggle{display:grid;grid-template-columns:1fr auto auto;align-items:center;gap:9px;background:transparent;color:var(--ink);padding:0}.dimension-toggle>span{display:flex;align-items:center;gap:7px}.dimension-toggle>small{font:12px Arial,sans-serif;color:#8b989e}.dimension-toggle>b{font:normal 17px/1 Arial,sans-serif;color:var(--orange-dark)}.tree-toggle:hover strong,.tree-toggle:focus strong,.dimension-toggle:hover,.dimension-toggle:focus{color:var(--orange-dark)}.root-toggle:hover strong,.root-toggle:focus strong{color:#fff}.tree-dimensions[hidden],.filter-options[hidden]{display:none}.filter-group h3{display:block}.filter-group:has(.dimension-toggle[aria-expanded="false"]){padding-bottom:12px}

/* Field photography */
.hero-field-photo{margin:0;position:relative;min-height:500px;background:var(--navy);box-shadow:24px 24px 0 #dbe2e5;overflow:hidden}.hero-field-photo:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 48%,rgba(8,28,38,.82) 100%);pointer-events:none}.hero-field-photo img{width:100%;height:100%;min-height:500px;object-fit:cover;display:block}.hero-field-photo figcaption{position:absolute;z-index:1;left:28px;right:28px;bottom:24px;color:#fff}.hero-field-photo figcaption span,.hero-field-photo figcaption strong{display:block}.hero-field-photo figcaption span{font-size:12px;color:#d4e0e4;letter-spacing:.08em}.hero-field-photo figcaption strong{font-size:21px;margin-top:3px}.gallery-intro{max-width:820px;margin:-8px 0 20px;color:var(--muted);font-size:14px}.field-gallery{display:grid;grid-template-columns:1.35fr 1fr 1fr;grid-template-rows:repeat(2,220px);gap:14px}.field-gallery figure{margin:0;position:relative;overflow:hidden;background:var(--navy)}.field-gallery-main{grid-row:1/3}.field-gallery figure:last-child{grid-column:3}.field-gallery img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s ease}.field-gallery figure:hover img{transform:scale(1.025)}.field-gallery figcaption{position:absolute;left:0;right:0;bottom:0;padding:38px 16px 13px;color:#fff;background:linear-gradient(transparent,rgba(8,27,36,.86))}.field-gallery figcaption strong,.field-gallery figcaption span{display:block}.field-gallery figcaption strong{font-size:15px}.field-gallery figcaption span{font-size:11px;color:#d2dfe3;margin-top:2px}
@media(max-width:960px){.hero-field-photo,.hero-field-photo img{min-height:420px}.hero-field-photo{box-shadow:14px 14px 0 #dbe2e5}.field-gallery{grid-template-columns:1fr 1fr;grid-template-rows:300px 210px 210px}.field-gallery-main{grid-column:1/3;grid-row:1}.field-gallery figure:last-child{grid-column:auto}}
@media(max-width:560px){.hero-field-photo,.hero-field-photo img{min-height:300px}.hero-field-photo{box-shadow:8px 8px 0 #dbe2e5}.field-gallery{grid-template-columns:1fr;grid-template-rows:repeat(4,210px)}.field-gallery-main{grid-column:1;grid-row:auto}.field-gallery figure:last-child{grid-column:1}}

/* Account and administrator controls */
[data-admin-only][hidden]{display:none!important}.account-actions button[hidden]{display:none}.account-dialog{overflow:auto}.account-form{display:grid;gap:13px;margin-top:18px}.account-form[hidden],.account-profile[hidden]{display:none}.account-form label{display:grid;gap:5px;color:var(--muted);font-size:12px}.account-form input{width:100%;border:1px solid #c8d3d7;background:#fff;padding:10px 11px;color:var(--ink)}.account-form label small{font-size:11px;color:#88979d}.account-form .primary-button{width:100%;margin-top:3px}.account-switch{justify-self:center;padding:5px 8px}.account-profile{text-align:center;padding-top:16px}.profile-badge{width:64px;height:64px;margin:0 auto 10px;border-radius:50%;display:grid;place-items:center;background:var(--navy);color:#fff;font:bold 24px Arial,sans-serif}.account-profile h3{margin:0;font-size:20px}.account-profile p{margin:5px 0 20px;color:var(--muted);font-size:13px}.account-profile button{width:100%;margin-top:8px}.danger-button{border:1px solid #bd493f;background:#fff;color:#a72d24;padding:9px 14px;font-weight:700;cursor:pointer}.danger-button:hover,.danger-button:focus{background:#a72d24;color:#fff}.admin-scene-actions{display:flex;gap:9px;margin-top:24px;padding-top:18px;border-top:1px solid var(--line)}.admin-scene-actions button{flex:1}.edit-dialog{width:min(760px,calc(100% - 30px))}.edit-fields{display:grid;grid-template-columns:1fr 1fr;gap:13px;margin:20px 0}.edit-fields label{display:grid;gap:5px;color:var(--muted);font-size:12px}.edit-fields label:nth-child(2),.edit-fields label:nth-child(5){grid-column:1/-1}.edit-fields input,.edit-fields textarea{width:100%;border:1px solid #c8d3d7;padding:9px 10px;color:var(--ink);background:#fff}.trash-dialog{width:min(760px,calc(100% - 30px));padding:30px}.trash-list{display:grid;gap:10px;margin-top:20px;max-height:58vh;overflow:auto}.trash-list article{display:grid;grid-template-columns:82px 1fr auto;gap:12px;align-items:center;border:1px solid var(--line);padding:9px}.trash-thumb{width:82px;height:58px;background:#dce4e7;overflow:hidden}.trash-thumb img{width:100%;height:100%;object-fit:cover}.trash-list strong,.trash-list span{display:block}.trash-list strong{font-size:13px}.trash-list span{margin-top:4px;color:var(--muted);font-size:11px}.trash-empty{padding:28px;text-align:center;background:#f3f6f7;color:var(--muted)}
@media(max-width:560px){.edit-fields{grid-template-columns:1fr}.edit-fields label:nth-child(2),.edit-fields label:nth-child(5){grid-column:1}.trash-list article{grid-template-columns:64px 1fr}.trash-thumb{width:64px;height:52px}.trash-list article button{grid-column:1/-1}.admin-scene-actions{flex-direction:column}}

.account-dialog[data-view="register"]{width:min(540px,calc(100% - 30px))}.account-form-intro{margin:0;padding:11px 13px;background:#f1f5f6;border-left:3px solid var(--orange);color:var(--muted);font-size:12px}.required-mark{color:#b7352c}.optional-mark{float:right;color:#8b989e;font-size:11px;font-weight:400}.password-control{position:relative;display:block}.password-control input{padding-right:62px}.password-control button{position:absolute;right:1px;top:1px;bottom:1px;width:56px;border:0;border-left:1px solid #d6dfe2;background:#f5f7f7;color:var(--navy);font-size:12px;font-weight:700}.password-control button:hover,.password-control button:focus{background:#e8eef0;color:var(--orange-dark)}.password-strength{height:5px;background:#e3e9eb;overflow:hidden}.password-strength i{display:block;width:0;height:100%;background:#bd493f;transition:width .18s ease,background .18s ease}.password-strength[data-level="1"] i{width:33%}.password-strength[data-level="2"] i{width:66%;background:#d9842f}.password-strength[data-level="3"] i{width:100%;background:#2f765d}.password-match{min-height:17px}.password-match.success{color:#2f765d}.password-match.error{color:#aa2f24}
.account-details{margin:14px 0 18px;text-align:left;border-top:1px solid var(--line)}.account-details div{display:flex;gap:12px;justify-content:space-between;padding:9px 0;border-bottom:1px solid var(--line);font-size:13px}.account-details dt{color:var(--muted)}.account-details dd{margin:0;overflow-wrap:anywhere;text-align:right}

/* Shared label dictionary and vertical scene hierarchy */
.scene-domain-list{display:grid;margin-top:15px;border:1px solid #bac7cc;border-bottom:0}.scene-domain{border-bottom:1px solid #bac7cc}.scene-domain-toggle{width:100%;min-height:45px;border:0;background:#46535c;color:#fff;display:grid;grid-template-columns:1fr auto;align-items:center;gap:10px;padding:10px 13px;text-align:left;font-size:15px;cursor:pointer}.scene-domain-toggle:hover,.scene-domain-toggle:focus,.scene-domain-toggle.active{background:var(--navy)}.scene-domain-toggle.active{box-shadow:inset 4px 0 0 var(--orange)}.scene-domain-toggle i,.dimension-toggle>b{width:8px;height:8px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg);transition:transform .16s ease}.scene-domain-toggle[aria-expanded="true"] i,.dimension-toggle[aria-expanded="true"]>b{transform:rotate(225deg)}.scene-domain-toggle i{color:#d9e2e6;margin-right:3px}.scene-domain-toggle.active i{color:var(--orange)}.scene-domain-body{padding:0 12px 12px;background:#f7f9f9}.scene-domain-body[hidden],.scene-domain-body .filter-options[hidden]{display:none}.scene-domain-body .tree-dimensions{margin-left:10px;padding-left:14px}.scene-domain-body .filter-group{padding:12px 0}.scene-domain-body .filter-group:before{left:-14px;top:24px;width:11px}.scene-domain-body .filter-options{display:grid;grid-template-columns:1fr;gap:6px}.scene-domain-body .filter-chip{width:100%;min-height:36px;text-align:left;font-size:13px;padding:7px 10px}.taxonomy-card>h3{display:flex;align-items:center;justify-content:space-between;gap:8px}
@media(max-width:560px){.scene-domain-toggle{min-height:42px}.dimension-toggle{grid-template-columns:minmax(0,1fr) auto}}

body[data-page="library"] .stat-summary{min-width:560px;max-width:640px}
body[data-page="library"] .stat-strip{grid-template-columns:repeat(5,minmax(0,1fr))}
body[data-page="library"] .stat-strip div{padding:14px 12px}
body[data-page="library"] .stat-strip small{white-space:normal}
.risk-sidebar-options{padding-top:12px}
@media(max-width:1100px){body[data-page="library"] .library-intro{flex-direction:column;align-items:stretch;gap:20px}body[data-page="library"] .stat-summary{min-width:0;max-width:none;width:100%}}
@media(max-width:560px){body[data-page="library"] .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}body[data-page="library"] .stat-strip div:nth-child(5){grid-column:1/-1;border-left:0;border-top:1px solid var(--line)}}

.scene-image svg{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
/* 登录前操作按钮保持隐藏，覆盖移动端按钮布局。 */
[data-auth-only][hidden]{display:none!important}
.frame-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;position:sticky;top:0;z-index:3;margin:16px 0 10px;padding:12px 0;background:#fff;border-bottom:1px solid var(--line)}
.frame-selection-actions{margin-left:auto}.frame-actions select{min-width:0;max-width:160px;padding:8px 10px;border:1px solid #cbd5d9;background:#fff;color:var(--ink);font-size:12px}.frame-selection-actions>span{font-size:12px;color:var(--muted)}
.frame-gallery{grid-template-columns:repeat(auto-fill,minmax(165px,1fr));gap:12px}.frame-gallery figure{position:relative;overflow:hidden;background:#fff;transition:border-color .15s,box-shadow .15s}.frame-gallery figure:hover{border-color:#7d9ba8}.frame-gallery .frame-image-trigger{position:relative;line-height:0}.frame-gallery figcaption{display:flex;align-items:center;justify-content:space-between;gap:6px;padding:9px 10px;cursor:zoom-in}.frame-gallery time{font-size:12px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums}.frame-group-count{padding:2px 5px;background:#eef3f4;color:#536d78;font-size:10px;white-space:nowrap}
.frame-selection-marker{display:none;position:absolute;top:8px;right:8px;width:23px;height:23px;border:2px solid #fff;border-radius:50%;background:rgba(12,36,46,.4);color:transparent;line-height:19px;text-align:center;font-size:14px;box-shadow:0 1px 4px #0005}.frame-gallery.is-selecting .frame-selection-marker{display:block}.frame-gallery.is-selecting .frame-image-trigger,.frame-gallery.is-selecting figcaption{cursor:pointer}.frame-gallery.is-selecting figure.selected{border-color:var(--orange);box-shadow:0 0 0 2px var(--orange)}.frame-gallery.is-selecting figure.selected .frame-selection-marker{background:var(--orange);color:#fff}
.frame-viewer-toolbar[hidden],.frame-viewer-status[hidden]{display:none}.image-dialog[open].frame-preview{flex-direction:column;align-items:stretch;justify-content:flex-start;gap:12px;padding:24px 24px 18px}.frame-viewer-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding-right:30px;color:#fff}.frame-viewer-toolbar strong{display:block;font-size:16px}.frame-viewer-toolbar span{display:block;margin-top:4px;font-size:12px;color:#b9ccd5}.frame-viewer-actions{display:flex;align-items:center;gap:7px;flex-wrap:wrap}.frame-viewer-actions button{padding:8px 12px;font-size:12px}.frame-viewer-actions [hidden]{display:none}.frame-viewer-status{margin:0;color:#d3e0e6;font-size:12px}.frame-preview .full-image-media{align-self:center;margin:auto 0;min-height:0}.frame-preview .full-image-media img{max-width:calc(96vw - 48px);max-height:calc(94vh - 160px)}
.scene-recognition-actions{margin-top:20px}.scene-recognition-actions button{width:100%}.scene-recognition-actions button:disabled{opacity:.55;cursor:not-allowed}.review-entry-actions button{margin-top:10px;padding:7px 11px;font-size:12px}
.recognition-suggestions{margin-bottom:12px;padding:9px 11px;background:#f3f6f7;border:1px solid var(--line);font-size:12px}.recognition-suggestions>summary{cursor:pointer;color:#526b77;font-weight:700}#frame-status:empty,#video-status:empty{display:none}
@media(max-width:600px){.frame-toolbar{gap:8px}.frame-selection-actions{width:100%;justify-content:flex-end}.frame-actions{gap:6px}.frame-actions button{padding:7px 9px}.frame-gallery{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.frame-gallery figcaption{padding:7px}.image-dialog[open].frame-preview{padding:20px 12px 12px}.frame-viewer-actions{gap:5px}.frame-viewer-actions button{padding:7px 9px}.frame-preview .full-image-media img{max-width:calc(96vw - 24px);max-height:calc(94vh - 210px)}}