:root{color-scheme:light;--ink:#151821;--soft:#414754;--muted:#666e7c;--line:#e6e8ed;--brand:#3158e5;--wash:#f5f7fc;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;color:var(--ink);background:#fff;font-synthesis:none;text-rendering:optimizeLegibility}
*{box-sizing:border-box}body{margin:0}a{color:var(--brand);text-decoration:none;text-underline-offset:4px}a:hover{text-decoration:underline}button,input{font:inherit}button{cursor:pointer}button,a,input,summary{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--brand);outline-offset:5px}button:disabled{cursor:default;opacity:.5}button:active,.primary:active{transform:translateY(1px)}[hidden]{display:none!important}html{scroll-padding-top:95px}h1,h2{font-weight:600;text-wrap:balance}p{margin:0}.skip{position:fixed;top:-80px;left:20px;background:#fff;padding:15px;z-index:100}.skip:focus{top:10px}
.site-header{height:80px;padding:0 max(28px,calc((100vw - 1192px)/2));display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:20;gap:24px}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:650;font-size:19px;white-space:nowrap}.brand:hover{text-decoration:none}.brand img{display:block;width:96px;height:auto;object-fit:contain}.login-link{font-size:14px;white-space:nowrap}.login-link span{margin-left:12px}
.reading-layout{max-width:1192px;margin:0 auto;display:grid;grid-template-columns:220px minmax(0,744px);gap:80px;padding:65px 28px 0}.contents{position:sticky;top:124px;align-self:start;max-height:calc(100svh - 150px);overflow:auto;padding-right:10px}.contents summary{font-size:13px;font-weight:600;list-style:none;pointer-events:none;color:var(--ink);padding:0 0 22px}.contents summary::-webkit-details-marker{display:none}.contents summary span{display:none}.contents nav{display:flex;flex-direction:column;gap:5px}.contents nav a{display:grid;grid-template-columns:42px 1fr;gap:10px;padding:8px 0;color:var(--muted);font-size:13px;line-height:1.65}.contents nav a:hover,.contents nav a[aria-current="location"]{color:var(--brand)}.contents nav a[aria-current="location"] .chapter-name{font-weight:650}.chapter-time{font-size:11px;font-variant-numeric:tabular-nums;line-height:2}.back-top{font-size:12px;color:var(--muted)}main{min-width:0}.episode-label{font-size:13px;color:var(--muted);line-height:1.8}.episode-label span{color:var(--brand);margin-left:15px;font-variant-numeric:tabular-nums}.episode-intro h1{font-size:48px;line-height:1.3;letter-spacing:-.025em;margin:23px 0 24px}.standfirst{font-size:17px;line-height:1.9;color:var(--soft);max-width:620px}.metadata{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:27px;font-size:12px;line-height:1.7;color:var(--muted);font-variant-numeric:tabular-nums}.chapter{scroll-margin-top:0}.chapter-heading{display:flex;gap:17px;align-items:baseline;margin:56px 0 32px;padding-top:25px;border-top:1px solid var(--line)}.chapter:first-child .chapter-heading{margin-top:22px}.chapter-heading>span{color:var(--brand);font-size:12px;font-variant-numeric:tabular-nums;white-space:nowrap}.chapter h2{font-size:24px;line-height:1.5;letter-spacing:-.015em;margin:0}.turn{margin-bottom:30px;scroll-margin-top:110px}.turn-meta{display:flex;align-items:center;gap:14px;margin-bottom:9px;font-size:12px;min-height:24px}.speaker{font-weight:600}.timestamp{font-size:11px;font-variant-numeric:tabular-nums;color:var(--muted);padding:4px 0}.turn-share{margin-left:auto;background:none;border:0;color:var(--muted);font-size:11px;padding:4px 0;opacity:0}.turn:hover .turn-share,.turn:focus-within .turn-share{opacity:1}.turn p{font-size:17px;line-height:1.95;letter-spacing:.012em;color:var(--soft);overflow-wrap:anywhere;max-width:75ch}.turn:target{background:var(--wash);outline:12px solid var(--wash);border-radius:2px}.transcription-note{margin-top:10px;color:var(--muted);font-size:12px;line-height:1.8}.transcription-note summary{cursor:pointer;width:fit-content}.transcription-note p{font-size:12px;line-height:1.8;margin-top:6px;color:var(--muted)}
.research-nudge{margin:42px 0;padding:27px 30px;background:var(--wash);border-radius:12px}.research-nudge h3{font-size:20px;line-height:1.5;font-weight:550;margin:0 0 10px}.research-nudge p{font-size:14px;line-height:1.85;color:var(--soft);margin-bottom:16px}.research-nudge a{font-size:13px;font-weight:500;display:inline-block;padding:4px 0}.closing{margin:78px 0 0;padding:45px 0;border-top:1px solid var(--line)}.closing h2{font-size:34px;line-height:1.45;letter-spacing:-.02em;margin:16px 0}.closing>p:not(.episode-label){font-size:16px;line-height:1.9;color:var(--soft);max-width:580px}.primary{display:inline-flex;align-items:center;gap:38px;background:var(--brand);color:#fff;padding:14px 20px;border-radius:7px;font-size:14px;margin-top:24px}.primary:hover{background:#2444ba;text-decoration:none}.page-footer{margin-top:25px;padding:27px 0 45px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:18px;justify-content:space-between;color:var(--muted);font-size:12px}.page-footer>a{color:var(--muted)}.page-footer p{flex-basis:100%;line-height:1.9}.toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%);z-index:40;background:var(--ink);color:#fff;font-size:13px;line-height:1.7;padding:12px 20px;border-radius:8px;max-width:calc(100vw - 36px);text-align:center}.library{max-width:880px;margin:28px auto;padding:0 28px}.episode-row{display:block;padding:30px 0;border-block:1px solid var(--line);color:var(--ink)}.episode-row:hover{text-decoration:none}.episode-row h2{font-size:26px;margin:14px 0;line-height:1.5}.episode-row:hover h2{color:var(--brand)}.episode-row p{font-size:15px;color:var(--muted);line-height:1.9}.episode-row .row-link{display:block;color:var(--brand);font-size:14px;margin-top:22px}
.resources{margin-top:64px;padding-top:32px;border-top:1px solid var(--line);scroll-margin-top:0}.resources>h2{font-size:30px;line-height:1.45;margin:16px 0}.resource-group{margin-top:34px}.resource-group h3{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:10px;font-size:18px;font-weight:600;margin:0 0 8px}.resource-group h3 a{font-size:12px;font-weight:400}.resource-list{list-style:none;margin:0;padding:0}.resource-list li{padding:22px 0;border-bottom:1px solid var(--line)}.resource-source{display:block;font-size:11px;line-height:1.8;color:var(--muted);margin-bottom:7px}.resource-list li>a{font-size:16px;line-height:1.75;overflow-wrap:anywhere}.resource-list li>p{font-size:13px;line-height:1.9;color:var(--soft);margin-top:7px}
@media(min-width:1450px){.reading-layout{gap:104px;grid-template-columns:220px minmax(0,744px)}}
@media(max-width:1050px){.reading-layout{gap:40px;grid-template-columns:178px minmax(0,1fr);padding-top:42px}.episode-intro h1{font-size:42px}.contents{top:112px}.chapter h2{font-size:22px}}
@media(max-width:760px){html{scroll-padding-top:85px}.site-header{height:66px;padding:0 20px;gap:14px}.brand{font-size:17px}.brand img{width:84px;height:auto}.login-link{font-size:12px}.login-link span{margin-left:5px}.reading-layout{display:flex;flex-direction:column;gap:24px;padding:22px 22px 0}.contents{position:static;max-height:none;align-self:stretch;padding:0;border-bottom:1px solid var(--line)}.contents summary{pointer-events:auto;cursor:pointer;padding:10px 0 18px;display:flex;justify-content:space-between}.contents summary span{display:inline}.contents nav{padding-bottom:16px;gap:3px}.contents nav a{grid-template-columns:45px 1fr;font-size:14px;padding:7px 0}.episode-intro h1{font-size:36px;line-height:1.35;margin-top:16px;margin-bottom:20px;letter-spacing:-.03em}.episode-label{font-size:12px}.standfirst{font-size:15px;line-height:1.9}.metadata{font-size:11px;gap:8px 16px;margin-top:22px}.chapter-heading{gap:12px;margin-top:42px;padding-top:25px;margin-bottom:24px}.chapter h2{font-size:22px}.chapter-heading>span{font-size:11px}.turn{margin-bottom:27px;scroll-margin-top:88px}.turn p{font-size:16px;line-height:1.95}.turn-share{opacity:1;padding:8px 0}.turn-meta{gap:12px;margin-bottom:5px}.research-nudge{padding:23px;margin:34px 0}.research-nudge h3{font-size:18px}.research-nudge p{font-size:13px}.closing{margin-top:54px;padding-top:32px}.closing h2{font-size:30px}.closing>p:not(.episode-label){font-size:15px}.primary{gap:25px}.library{margin:20px auto;padding:0 22px}.episode-row h2{font-size:24px}.transcription-note p{font-size:12px}.page-footer{padding-bottom:32px}}
@media(prefers-reduced-motion:no-preference){a,button{transition:background-color .15s ease-out,color .15s ease-out}.turn:target{animation:locate 1s ease-out}@keyframes locate{from{background:#e9eeff;outline-color:#e9eeff}to{background:var(--wash);outline-color:var(--wash)}}}
.podcast-listening{padding-bottom:140px}



.turn.is-playing{background:var(--wash);outline:10px solid var(--wash);border-radius:2px}
.turn.is-playing .timestamp{color:var(--brand)}
.podcast-listening .timestamp{font-weight:500}
.turn-meta{flex-wrap:wrap}
.turn-ask{margin-left:auto;color:var(--brand);font-size:11px;padding:7px 0;opacity:0}
.turn:hover .turn-ask,.turn:focus-within .turn-ask,.turn.is-playing .turn-ask{opacity:1}
.podcast-listening .turn-share{margin-left:0}
.audio-dock{position:fixed;bottom:0;left:0;right:0;z-index:30;border-top:1px solid var(--line);background:#fff;padding:14px max(22px,calc((100vw - 1192px)/2));padding-bottom:max(14px,env(safe-area-inset-bottom))}
.audio-dock-inner{display:flex;align-items:center;gap:22px;max-width:1192px;margin:auto}
.audio-caption{display:flex;flex-direction:column;gap:7px;flex:0 0 175px;min-width:0}
.audio-caption strong{font-size:13px;font-weight:600}
.audio-caption span{font-size:11px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.audio-dock audio{flex:1;min-width:200px;width:100%;height:42px}
.audio-actions{display:flex;align-items:center;gap:16px;white-space:nowrap;font-size:12px;color:var(--soft)}
.audio-actions label{display:flex;align-items:center;gap:5px}
.audio-actions select{font:inherit;color:var(--ink);border:1px solid var(--line);border-radius:6px;background:#fff;padding:7px 3px;min-height:36px}
.audio-actions input{accent-color:var(--brand);width:15px;height:15px;margin:0}
.audio-actions button{background:none;border:0;color:var(--brand);font-size:12px;padding:9px 0;min-height:36px}
.audio-actions .ask-dock{display:inline-flex;align-items:center;background:var(--brand);color:#fff;border-radius:8px;padding:10px 13px;min-height:36px}
.audio-actions .ask-dock:hover{background:#2444ba;text-decoration:none}
.audio-dock>p{font-size:12px;line-height:1.8;color:var(--muted);margin:8px auto 0;max-width:1192px}
.podcast-listening .contents{max-height:calc(100svh - 240px)}
.podcast-listening .toast{bottom:150px}
@media(max-width:1050px){.audio-caption{display:none}.audio-dock-inner{gap:18px}}
@media(max-width:760px){
  .podcast-listening{padding-bottom:156px}
  .podcast-listening .contents{max-height:none}
  .turn-ask{opacity:1;min-height:36px;display:inline-flex;align-items:center}
  .turn-meta{gap:8px}
  .audio-dock{padding:8px 15px max(10px,env(safe-area-inset-bottom))}
  .audio-dock-inner{flex-wrap:wrap;gap:2px}
  .audio-dock audio{flex-basis:100%;height:42px}
  .audio-actions{width:100%;justify-content:space-between;gap:7px;font-size:11px}
  .audio-actions button{font-size:11px}
  .audio-actions .ask-dock{padding:8px 10px}
  .audio-actions select{min-height:34px}
  .podcast-listening .toast{bottom:148px}
}

.metadata{align-items:center;gap:10px 18px}
.metadata button{margin-left:auto;background:none;border:0;color:var(--brand);font:inherit;padding:7px 0}
.episode-intro{margin-bottom:38px}
.contents nav .resource-nav{margin-top:14px;padding-top:18px;border-top:1px solid var(--line)}
.contents>.back-top{display:inline-block;margin-top:24px}
.turn-references{display:flex;flex-wrap:wrap;gap:5px 20px;margin-top:12px;font-size:12px;line-height:1.8}
.turn-references a{padding:3px 0}
.selection-ask{position:fixed;right:max(22px,calc((100vw - 1192px)/2));z-index:35;margin:0;max-width:calc(100vw - 44px);box-shadow:0 4px 18px #1518211a}
.show-notes{margin:0 0 32px;color:var(--soft);font-size:14px;line-height:1.9}
.show-notes summary{cursor:pointer;color:var(--brand);width:fit-content;padding:8px 0}
.show-notes>div{padding-top:12px}.show-notes p{margin:0 0 16px;overflow-wrap:anywhere}
.show-timeline{list-style:none;padding:0;margin:24px 0}.show-timeline li{display:grid;grid-template-columns:64px minmax(0,1fr);gap:12px;margin:12px 0}.show-timeline a{font-variant-numeric:tabular-nums}
.episode-row+.episode-row{border-top:0}
.resource-list li{scroll-margin-top:110px}
@media(hover:hover){.podcast-listening .turn>p{cursor:pointer}.podcast-listening .turn>p:hover{color:var(--ink)}}
@media(max-width:760px){.metadata{gap:8px 12px}.episode-intro{margin-bottom:28px}.contents>.back-top{display:none}.turn-references{font-size:11px}}

@media print{.site-header,.contents,.research-nudge,.closing,.turn-share,.turn-ask,.page-footer,.toast,.audio-dock,.selection-ask,#share-page{display:none!important}.reading-layout{display:block;padding:0;max-width:none}.podcast-listening{padding:0}.episode-intro h1{font-size:28px}.turn p{font-size:11pt;max-width:none}.chapter-heading{break-after:avoid}.turn-meta{break-after:avoid}a{color:inherit}.turn:target,.turn.is-playing{outline:none;background:none}}

.site-nav{display:flex;align-items:center;gap:28px;font-size:14px;white-space:nowrap}.site-nav>a{display:inline-flex;align-items:center;min-height:44px}.site-nav>a[aria-current="page"]{font-weight:600}.library>.episode-row:first-child{border-top:0}
@media(max-width:760px){.site-nav{gap:18px;font-size:12px}}