:root{color-scheme:light;--paper:#fffcfa;--ink:#2b2320;--accent:#9a3412;--line:#dfcec1;--muted:#8b7a6e;--panel:#fff4eb}
*{box-sizing:border-box}body{margin:0;background:#f4ece6;color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif}a{color:var(--accent);text-decoration:none}button,select{font:inherit;color:inherit}button{cursor:pointer;background:transparent;border:0}button:disabled{opacity:.3;cursor:default}:focus-visible{outline:2px solid #ea580c;outline-offset:4px}.sr-only,.skip:not(:focus){position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.skip:focus{position:fixed;top:8px;left:8px;z-index:20;background:white;padding:16px}
.report-header{height:68px;display:flex;align-items:center;gap:32px;border-bottom:1px solid var(--line);padding:0 4vw;background:var(--paper)}.report-header a{color:inherit}.report-header a:hover{color:#ea580c}.deck-brand{display:flex;gap:10px;align-items:center;letter-spacing:.06em;font-size:17px;font-weight:600}.deck-brand>span{font-size:30px;font-weight:400}.deck-context{margin-left:auto;font-size:12px;letter-spacing:.1em;color:var(--muted)}.deck-context>span{margin:0 10px}.back-report{font-size:14px;margin-left:18px}.back-report>span{margin-left:12px}
main{max-width:1280px;margin:auto;padding:0 24px}.intro{padding:36px 0;line-height:1.8}.intro h1{font-size:36px}.eyebrow,.note{font-size:13px;color:var(--muted)}.report-page{margin:32px 0}.report-page h2{font-size:18px}.report-page h2 span{font-size:12px;color:var(--muted);margin-right:15px}.slide-frame{position:relative;background:var(--paper)}.slide-image{display:block}.slide-image img{display:block;width:100%;height:auto}.scene-video{position:absolute;display:block;background:#201711;object-fit:contain}.scene-video:fullscreen{position:static;width:100%!important;height:100%!important;background:#000}.video-note{font-size:13px;color:var(--accent);line-height:1.6;padding:12px 16px;background:var(--panel);margin:0}.video-error{font-weight:600}details{background:var(--paper);border-top:1px solid var(--line);padding:14px 20px;font-size:14px}summary{cursor:pointer;color:var(--accent)}.transcript{line-height:1.8;overflow-wrap:anywhere}.transcript p{margin:8px 0}
.deck-controls{display:none}.js-deck{min-height:100dvh}.js-deck .intro{display:none}.js-deck main{padding:0;margin:0;max-width:none;display:flow-root}.js-deck .report-page{display:none;margin:16px auto;width:min(calc(100vw - 64px),calc((100dvh - 162px) * 16 / 9));border:1px solid var(--line);box-shadow:0 10px 36px #2b171010}.js-deck .report-page.is-active{display:block}.js-deck .report-page>h2{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.js-deck .report-page>details{display:none}.js-deck .video-note{position:absolute;padding:0;background:none;font-size:11px;margin-top:6px}
.js-deck .deck-controls{display:flex;align-items:center;justify-content:space-between;gap:18px;height:68px;flex:none;margin:0 4vw;position:relative;padding-bottom:7px}.chapter-nav{display:flex;align-items:center;gap:17px;flex:1}.chapter-nav button{height:44px;padding:0;border-bottom:2px solid transparent;font-size:12px;white-space:nowrap;color:var(--muted)}.chapter-nav button[aria-current]{border-color:var(--accent);color:var(--accent)}.paging{display:flex;align-items:center;gap:14px}.paging button{width:44px;height:44px;border:1px solid var(--line);font-size:22px}.paging output{font-size:14px;min-width:62px;text-align:center;font-variant-numeric:tabular-nums;letter-spacing:.04em}.deck-tools{display:flex;justify-content:flex-end;gap:4px;flex:1}.deck-tools button{font-size:13px;height:44px;padding:0 12px;white-space:nowrap}button:hover:not(:disabled){background:var(--panel);color:var(--accent)}.deck-progress{position:absolute;bottom:0;left:0;right:0;height:2px;background:var(--line)}.deck-progress span{display:block;height:100%;background:var(--accent);transition:width .2s}
dialog{width:min(780px,calc(100vw - 40px));max-height:calc(100dvh - 48px);padding:26px 30px;background:var(--paper);color:var(--ink);border:1px solid var(--line);box-shadow:0 24px 80px #2b171033}dialog::backdrop{background:#2b171080;backdrop-filter:blur(4px)}.dialog-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line);padding-bottom:18px}.dialog-heading h2{margin:0;font-size:26px}.dialog-heading button{padding:10px;border:1px solid var(--line);min-height:44px}.outline-list{display:grid;grid-template-columns:1fr 1fr;gap:0 20px;list-style:none;margin:16px 0;padding:0}.outline-list button{display:flex;align-items:baseline;gap:15px;text-align:left;width:100%;padding:12px 8px;min-height:50px;border-bottom:1px solid var(--line);font-size:14px;line-height:1.6}.outline-list button span{font-size:12px;color:var(--muted)}.outline-list button[aria-current]{background:var(--panel);color:var(--accent)}.outline-help{font-size:12px;line-height:1.8;color:var(--muted)}.deck-message{position:fixed;bottom:85px;left:50%;transform:translateX(-50%);max-width:90vw;padding:14px 22px;background:var(--ink);color:white;z-index:30;font-size:14px}
@media(max-width:1150px){.chapter-nav{gap:10px}.chapter-nav button{font-size:11px}.deck-tools button{padding:0 8px}.js-deck .deck-controls{gap:12px;margin:0 24px}}
@media(max-width:900px){.chapter-nav{display:none}.deck-tools{flex:initial}.js-deck .deck-controls{justify-content:space-between}.report-header strong span{display:none}}
@media(max-width:600px) and (orientation:portrait){.report-header{height:58px;padding:0 14px;font-size:12px}.report-header strong{display:none}.report-header .download-ppt{padding:8px 12px}.js-deck main{overflow:auto;display:block;padding:20px 12px 12px}.js-deck .report-page{width:100%;border:0;box-shadow:none}.js-deck .report-page>h2{position:static;clip:auto;width:auto;height:auto;font-size:15px;margin:0 0 14px}.js-deck .report-page>h2 span{font-size:12px}.scene-video{position:static;width:100%!important;height:auto!important;aspect-ratio:3440/1440;margin-top:10px}.js-deck .video-note{position:static;margin:0;padding:10px 12px;background:var(--panel);font-size:12px}.js-deck .report-page>details{display:block}.js-deck .deck-controls{height:68px;margin:0 12px;gap:8px}.paging{gap:6px}.paging button{width:38px;height:40px}.paging output{font-size:12px;min-width:52px}.deck-tools{gap:0}.deck-tools button{padding:0 8px;font-size:12px}#open-text{display:none}dialog{padding:20px 16px;width:calc(100vw - 24px)}.outline-list{grid-template-columns:1fr}.dialog-heading h2{font-size:22px}.deck-message{bottom:78px}}
@media(max-height:500px) and (orientation:landscape){.report-header{height:44px}.js-deck .deck-controls{height:50px}.js-deck .report-page{width:min(calc(100vw - 48px),calc((100dvh - 120px) * 16 / 9))}.js-deck .video-note{font-size:10px}.chapter-nav{display:none}.deck-tools{flex:initial}}
/* Match the AI report shell while retaining the UE palette and slide artwork. */
.js-deck .deck-controls{height:60px;padding-bottom:4px;gap:16px}
.chapter-nav{gap:18px}.chapter-nav button{font-size:13px}
.paging{flex:none;gap:14px}.paging button{line-height:1}.paging output{min-width:56px}
.deck-tools{flex:1;gap:4px}
.deck-tools button,.deck-tools .download-ppt{display:inline-flex;align-items:center;justify-content:center;font-size:13px;height:44px;padding:0 10px;white-space:nowrap;color:inherit}
.deck-tools .download-ppt:hover{background:var(--panel);color:var(--accent)}
#outline-dialog #open-text{display:inline-flex;align-items:center;min-height:44px;padding:8px 12px;border:1px solid var(--line);font-size:13px}
@media(min-width:1800px){
  .js-deck .report-page{max-width:1680px}
  .js-deck .deck-controls{max-width:1680px;margin:auto;gap:32px}
  .chapter-nav{gap:26px}.chapter-nav button,.deck-tools button{font-size:15px}
}
@media(max-width:1100px){
  .js-deck .report-page{width:min(calc(100vw - 40px),calc((100dvh - 162px) * 16 / 9))}
  .report-header{padding:0 3vw}
  .js-deck .deck-controls{margin:0 3vw;gap:12px}
  .chapter-nav{gap:12px}.chapter-nav button{font-size:12px}
  .deck-tools button,.deck-tools .download-ppt{font-size:12px;padding:0 7px}
  .paging{gap:8px}
}
@media(min-width:761px) and (max-width:900px){
  .chapter-nav{display:flex}
  .deck-tools{flex:1}
}
@media(max-width:760px){
  .report-header{height:56px;gap:12px;padding:0 18px}
  .deck-brand{font-size:14px;gap:6px}.deck-brand>span{font-size:25px}
  .deck-context{display:none}.back-report{margin-left:auto;font-size:12px}
  .paging button{width:40px;height:40px}.paging output{font-size:14px}
  .js-deck .deck-controls{flex-wrap:wrap;height:auto;min-height:114px;margin:0 12px;padding-bottom:12px;gap:8px}
  .chapter-nav{display:flex;order:3;justify-content:space-between;width:100%;flex-basis:100%;gap:4px}
  .chapter-nav button{font-size:12px;min-height:44px}
}
@media(max-width:760px) and (orientation:portrait){
  .report-header{height:56px;padding:0 18px}
  .js-deck main{display:flow-root;overflow:visible;padding:0 12px}
  .js-deck .report-page{width:100%;margin:20px auto}
}
@media(max-height:500px) and (orientation:landscape){
  .js-deck .deck-controls{height:50px;min-height:0;flex-wrap:nowrap}
  .js-deck .report-page{width:min(calc(100vw - 48px),calc((100dvh - 128px) * 16 / 9))}
  .chapter-nav{display:none}
}
@media(prefers-reduced-motion:reduce){.deck-progress span{transition:none}}
@media print{@page{size:A4 landscape;margin:8mm}body,.js-deck{display:block;height:auto;overflow:visible;background:white}.report-header,.intro,.deck-controls,.js-deck .deck-controls,.report-page>h2,.video-note,.scene-video,details,dialog,.skip{display:none!important}main,.js-deck main{display:block;padding:0;max-width:none;overflow:visible}.report-page,.js-deck .report-page{display:block;width:100%;margin:0;box-shadow:none;border:0;break-after:page}.report-page:last-of-type{break-after:auto}}