.story-shell{width:min(calc(100% - clamp(22px,5.5vw,88px)*2),1280px);margin:auto;padding:30px 0 80px}.story-skip{position:absolute;top:-100px;left:20px;z-index:9999;background:var(--paper);padding:12px}.story-skip:focus{top:12px}.story-crumb{display:flex;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:13px;margin-bottom:44px;align-items:center}.story-crumb a{display:inline-flex;min-height:36px;align-items:center}.story-crumb a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:4px}.story-heading{width:100%;max-width:none;padding-bottom:36px}.story-meta{display:flex;flex-wrap:wrap;gap:12px 24px;font-size:12px;letter-spacing:.06em;color:var(--muted);margin:0 0 22px}.story-meta>span{color:var(--ink)}.story-meta>span::before{content:"";display:inline-block;width:6px;height:6px;background:var(--accent);border-radius:50%;vertical-align:middle;margin-right:10px}.story-heading h1{font-size:clamp(32px,4vw,52px);line-height:1.4;letter-spacing:-.035em;font-weight:560;text-wrap:pretty;margin:0;max-width:none}.story-author{margin:24px 0 0;font-size:12px;letter-spacing:.05em;color:var(--muted)}.story-lead{font-size:18px;line-height:1.95;color:var(--muted);margin:28px 0 0;max-width:none;width:100%}/* Follow the global header's scroll visibility without leaving an empty gap. */
.story-page{--story-visible-header-offset:var(--story-header-offset,76px)}
.story-page.site-header-hidden:not(.nav-mega-open):not(.nav-drawer-open){--story-visible-header-offset:0px}
.story-tools{position:sticky;top:var(--story-visible-header-offset);z-index:90;display:block;margin:0 0 28px;padding:12px 0 4px;border-block:1px solid var(--line);background:var(--paper)}
.story-tools[hidden],.story-tools [hidden]{display:none!important}
.story-tools-main{display:flex;align-items:center;justify-content:space-between;gap:16px}
.story-tools-label{margin:0;color:var(--muted);font-size:12px;letter-spacing:.04em;flex-shrink:0}
.story-tools-actions{display:flex;align-items:stretch;gap:8px}
.story-tools button{display:inline-flex;justify-content:center;align-items:center;gap:8px;min-height:44px;padding:9px 16px;border:1px solid var(--line);border-radius:3px;background:var(--paper);color:var(--ink);font:inherit;font-size:13px;line-height:1.5;cursor:pointer}
.story-tools button:hover{border-color:var(--ink);background:var(--wash)}
.story-tools button[aria-pressed="true"]{border-color:var(--accent);background:var(--wash);box-shadow:inset 0 -2px var(--accent)}
.story-tools button.story-poster-button{border-color:var(--ink);background:var(--ink);color:var(--paper)}
.story-tools button.story-poster-button:hover{opacity:.85}
.story-tools button:focus-visible,.story-pager-card:focus-visible,.story-copy-fallback input:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.story-tools button[aria-busy="true"]{cursor:progress}
.story-tools button svg{width:18px;height:18px;flex:none;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.story-tool-type{display:inline-flex;align-items:baseline;font-size:12px;line-height:1;flex:none}.story-a-plus{font-size:17px;margin-left:1px}
#story-action-status{min-height:18px;margin:4px 0 0;color:var(--muted);font-size:12px;line-height:1.5}
.story-copy-fallback{display:flex;align-items:center;gap:12px;padding:8px 0;font-size:12px}
.story-copy-fallback label{flex:none;color:var(--muted)}
.story-copy-fallback input{min-width:0;width:100%;min-height:44px;border:1px solid var(--line);background:var(--wash);color:var(--ink);padding:8px 12px;font:inherit;font-size:16px}
.story-opening{margin:0 0 50px}.story-opening figure{margin:0!important;max-width:none}.story-opening img{display:block;width:100%;height:auto;max-height:620px;object-fit:contain;background:var(--wash)}.story-opening figcaption{font-size:12px;line-height:1.75;color:var(--muted);margin:14px auto 0;max-width:960px}.story-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:clamp(32px,5vw,76px);align-items:start}.story-rail{position:sticky;top:calc(var(--story-visible-header-offset) + var(--story-tools-height,80px) + 24px);max-height:calc(100dvh - var(--story-visible-header-offset) - var(--story-tools-height,80px) - 44px);overflow-y:auto;scrollbar-width:thin;padding:0 4px 6px 0}.story-toc{border-top:1px solid var(--line);padding-top:18px}.story-toc summary{font-size:12px;color:var(--muted);list-style:none;display:flex;align-items:center;justify-content:space-between;gap:20px;cursor:pointer;min-height:30px}.story-toc summary::-webkit-details-marker{display:none}.story-toc summary>span{font-size:18px}.story-toc[open] summary>span{transform:rotate(45deg)}.story-toc ol{list-style:none;padding:0;margin:16px 0 0}.story-toc li{margin:0}.story-toc a{display:flex;gap:10px;padding:10px 10px 10px 0;color:var(--muted);font-size:13px;line-height:1.7;text-decoration:none;border-right:2px solid transparent}.story-toc a>span{font-size:10px;opacity:.7;padding-top:2px;flex-shrink:0;font-variant-numeric:tabular-nums}.story-toc a:hover,.story-toc a[aria-current="location"]{color:var(--ink)}.story-toc a[aria-current="location"]{border-color:var(--accent)}.story-progress-note{display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:10px;padding:22px 0 18px;margin-top:18px;border-top:1px solid var(--line);letter-spacing:.04em}.story-progress-note output{font-variant-numeric:tabular-nums;color:var(--ink)}.story-rail-back{display:block;font-size:12px;margin-top:12px;min-height:40px;color:var(--muted)}.story-progress{position:fixed;z-index:1100;top:0;left:0;right:0;height:3px;pointer-events:none}.story-progress>span{height:100%;width:100%;display:block;background:var(--accent);transform:scaleX(0);transform-origin:left}.story-body{font-size:18px;line-height:1.95;min-width:0;overflow-wrap:break-word}.story-body p{margin:0 0 1.5em}.story-body h2{font-size:28px;line-height:1.55;font-weight:560;letter-spacing:-.025em;margin:60px 0 24px;text-wrap:pretty;scroll-margin-top:calc(var(--story-header-offset,76px) + var(--story-tools-height,80px) + 20px - var(--story-root-scroll-padding,0px))}.story-body h3{font-size:23px;font-weight:550;margin:36px 0 18px;scroll-margin-top:calc(var(--story-header-offset,76px) + var(--story-tools-height,80px) + 20px - var(--story-root-scroll-padding,0px))}.story-body>p:first-child{font-size:1.04em}.story-body figure{margin:36px 0}.story-body img{display:block;width:100%;height:auto;object-fit:contain}.story-body figcaption{font-size:13px;line-height:1.8;color:var(--muted);margin-top:12px}.story-photo{max-width:570px;margin-inline:auto!important}.story-videos{display:grid;grid-template-columns:1fr 1fr;gap:22px}.story-videos video{display:block;width:100%;aspect-ratio:9/16;object-fit:contain;background:var(--inverse)}.story-video{margin:36px 0;max-width:100%}.story-video video{display:block;width:100%;max-width:100%;height:auto;aspect-ratio:16/9;object-fit:contain;background:var(--inverse)}.media-download{display:inline-flex;align-items:center;min-height:44px;font-size:12px;color:var(--muted);text-decoration:underline;text-underline-offset:4px}.story-mock{max-width:400px;margin-inline:auto!important}.mock-label{padding:12px 16px;font-size:12px;letter-spacing:.04em;border:1px solid var(--line);background:var(--wash)}.story-mock img{border:1px solid var(--line);border-top:0}.story-body blockquote{margin:36px 0;padding:24px 28px;border-left:2px solid var(--accent);background:var(--wash);font-size:1.06em;line-height:1.85}.story-body blockquote p:last-child{margin-bottom:0}.story-body ul,.story-body ol{padding-left:1.4em;margin:20px 0 30px}.story-body li{margin-bottom:.7em}.story-body a:not(.media-download){text-decoration:underline;text-underline-offset:4px;overflow-wrap:anywhere}.story-sources{border-top:1px solid var(--line);margin-top:48px;padding-top:24px}.story-sources h2{font-size:15px;margin:0 0 18px}.story-sources p{font-size:13px;line-height:1.8;color:var(--muted);overflow-wrap:anywhere;margin-bottom:12px}.story-end{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:24px;margin-top:50px;font-size:13px}.story-end a{min-height:44px;display:flex;align-items:center}.story-related{border-top:1px solid var(--line);margin-top:64px;padding-top:38px}.story-related .blog-section-top{margin-bottom:30px}.story-related h2{font-size:30px;margin-top:12px}.story-related .blog-card h3{font-size:22px}.story-related .blog-card-image{max-height:300px}.story-image-button{display:block;position:relative;margin:0;padding:0;border:0;width:100%;background:transparent;color:var(--ink);cursor:zoom-in;font:inherit}.story-image-button::after{content:attr(data-hint);position:absolute;right:12px;bottom:12px;background:var(--paper);color:var(--ink);padding:6px 10px;border:1px solid var(--line);font-size:11px;opacity:.93;box-shadow:0 1px 10px #0001}.story-image-button:hover::after{background:var(--ink);color:var(--paper)}.story-lightbox{position:fixed;inset:0;width:min(calc(100% - 32px),1420px);max-width:none;height:calc(100dvh - 40px);max-height:none;border:1px solid var(--line);background:var(--paper);color:var(--ink);margin:auto;padding:56px 24px 24px;overflow:auto}.story-lightbox::backdrop{background:color-mix(in srgb,var(--ink) 70%,transparent);backdrop-filter:blur(6px)}.story-lightbox-close{position:absolute;top:8px;right:12px;border:0;background:transparent;color:var(--ink);font:inherit;font-size:13px;padding:12px;cursor:pointer;min-height:44px}.story-lightbox figure{margin:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;height:100%}.story-lightbox img{display:block;width:100%;height:calc(100% - 65px);min-height:0;object-fit:contain}.story-lightbox figcaption{font-size:13px;line-height:1.7;color:var(--muted);max-width:900px;text-align:center}.story-lightbox-open{overflow:hidden}.story-page[data-text="large"] .story-body{font-size:21px}.story-page #story-top{scroll-margin-top:calc(var(--story-header-offset,76px) + var(--story-tools-height,80px) + 20px - var(--story-root-scroll-padding,0px))}html[lang="en"] .story-heading h1{line-height:1.18;letter-spacing:-.035em}html[lang="en"] .story-body{line-height:1.85}html[lang="en"] .story-body h2{line-height:1.3}
@media(max-width:1100px){.story-layout{grid-template-columns:210px minmax(0,1fr);gap:32px}}
@media(max-width:900px){.story-layout{display:block}.story-rail{position:static;max-height:none;overflow:visible;margin-bottom:30px;padding:0}.story-toc{border-bottom:1px solid var(--line);padding:0}.story-toc summary{padding:14px 0;min-height:50px}.story-toc ol{margin:0 0 16px}.story-rail-back,.story-progress-note{display:none!important}}
@media(max-width:1000px){.story-heading h1{font-size:40px}.story-opening img{max-height:560px}.story-body{font-size:17px}.story-body h2{font-size:26px}}
@media(max-width:760px){.story-shell{padding:22px 0 50px}.story-crumb{margin-bottom:26px;font-size:12px}.story-heading{padding-bottom:28px}.story-meta{margin-bottom:18px;font-size:11px;gap:12px 18px}.story-heading h1{font-size:31px;line-height:1.48}.story-author{font-size:11px;line-height:1.8;margin-top:18px}.story-lead{font-size:16px;line-height:1.9;margin-top:22px}.story-opening{margin-bottom:32px}.story-opening img{max-height:520px}.story-opening figcaption{font-size:11px;margin-top:10px}.story-toc summary{padding:14px 0;min-height:50px;font-size:13px;color:var(--ink)}.story-toc a{padding:10px 4px;font-size:13px;min-height:44px}.story-body{font-size:17px;line-height:1.95}.story-body h2{font-size:25px;line-height:1.6;margin-top:46px;margin-bottom:20px}.story-body p{margin-bottom:1.45em}.story-body blockquote{font-size:17px;padding:20px;margin:30px 0}.story-body figure{margin:28px 0}.story-body figcaption{font-size:12px}.story-videos{grid-template-columns:1fr;gap:0}.story-videos figure{max-width:360px;width:100%;margin-inline:auto}.story-related{margin-top:36px;padding-top:26px}.story-related h2{font-size:26px}.story-related .blog-section-top{margin-bottom:24px}.story-related .blog-card h3{font-size:23px}.story-end{font-size:12px;margin-top:36px;padding-top:18px}.story-page[data-text="large"] .story-body{font-size:19px}.story-lightbox{width:calc(100% - 16px);height:calc(100dvh - 24px);padding:54px 10px 16px}.story-lightbox figcaption{font-size:12px}.story-image-button::after{font-size:10px;padding:5px 8px;right:8px;bottom:8px}html[lang="en"] .story-heading h1{font-size:34px;line-height:1.18}}
.story-pager{margin-top:56px;border-top:1px solid var(--line);padding-top:24px}
.story-pager-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.story-pager-card,.story-pager-boundary{min-width:0;display:flex;flex-direction:column;align-items:flex-start;gap:12px;min-height:160px;margin:0;padding:24px;border:1px solid var(--line);border-radius:3px}
.story-pager-card{color:var(--ink);text-decoration:none;transition:background .15s,border-color .15s}
.story-pager-card:hover{background:var(--wash);border-color:var(--ink)}
.story-pager-direction{font-size:12px;line-height:1.6;color:var(--muted)}
.story-pager-title{font-size:19px;font-weight:500;line-height:1.65;overflow-wrap:anywhere;text-wrap:pretty}
.story-pager-date{font-size:11px;font-variant-numeric:tabular-nums;color:var(--muted);margin-top:auto;padding-top:8px}
.story-pager-next{align-items:flex-end;text-align:right}
.story-pager-boundary{justify-content:center;color:var(--muted);font-size:13px;border-style:dashed}
.story-pager+.story-end{border-top:0;margin-top:12px;padding-top:0}
@media(max-width:760px){
 .story-tools{margin-bottom:24px;padding-top:10px}
 .story-tools-label{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
 .story-tools-actions{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;width:100%}
 .story-tools-main{display:block}
 .story-tools button{padding:9px 6px;gap:5px;font-size:12px;overflow-wrap:anywhere}
 .story-tools button svg{width:16px;height:16px}
 .story-pager{margin-top:36px;padding-top:20px}
 .story-pager-grid{grid-template-columns:1fr;gap:12px}
 .story-pager-card,.story-pager-boundary{min-height:0;padding:20px;gap:10px}
 .story-pager-title{font-size:18px}.story-pager-boundary{padding:16px 20px}
}
@media(prefers-reduced-motion:reduce){.story-page *{scroll-behavior:auto!important;transition:none!important}}
@media print{.story-rail,.story-tools,.story-pager,.story-related,.story-progress,.site-header,.nav-drawer,.story-end,.story-crumb,body>footer{display:none!important}.story-shell,.story-heading{width:100%;max-width:none;padding:0}.story-layout{display:block}.story-body{font-size:11pt;line-height:1.6}.story-heading h1{font-size:24pt}.story-body h2{break-after:avoid}.story-body figure{break-inside:avoid}.story-image-button::after{display:none}}

.story-location{border-top:1px solid var(--line);padding-top:24px;margin-top:48px}.story-location p{font-size:14px;margin-bottom:12px}.story-location a{display:inline-flex;align-items:center;min-height:44px;font-size:13px}

/* Douyin switches to a viewport-sized player on narrow screens. A 16:9
   iframe clips its centered video and controls, even while audio plays. */
.story-douyin-player{position:relative}
.story-douyin-player>iframe{position:absolute;inset:0}
@media(max-width:760px){
  .story-body .story-douyin{width:100vw;max-width:none!important;margin-inline:calc((100% - 100vw)/2)!important}
  .story-douyin-player{aspect-ratio:auto!important;height:100vh;min-height:640px}
  @supports(height:100lvh){.story-douyin-player{height:100lvh}}
}

.story-source{border-top:1px solid var(--line);margin-top:40px;padding-top:20px;font-size:13px;line-height:1.8;color:var(--muted)}.story-source .story-source-title{font-size:13px;color:var(--ink);margin:0 0 12px}.story-source dl{display:grid;gap:10px;margin:0}.story-source dl>div{display:grid;grid-template-columns:100px minmax(0,1fr);gap:16px}.story-source dt,.story-source dd{margin:0;overflow-wrap:anywhere}.story-source-caption{white-space:pre-line}.story-source a{display:inline-flex;align-items:center;min-height:44px;margin-top:8px;border-bottom:1px solid var(--line)}@media(max-width:760px){.story-source dl>div{grid-template-columns:1fr;gap:0}.story-source dd{color:var(--ink)}}