.published-page{max-width:1120px;padding-top:37px}.published-page>.breadcrumb{font-size:12px;color:var(--muted)}.essay-header{max-width:890px;margin:41px auto 32px;text-align:center}.essay-header>.eyebrow{font-size:10px;letter-spacing:2px;margin-bottom:21px}.published-page .essay-header .page-heading{max-width:none;margin:0}.published-page .essay-header h1{font:600 clamp(36px,4.4vw,54px)/1.12 -apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC',sans-serif;letter-spacing:-1.55px;margin:0;text-wrap:balance}.published-page .essay-header .page-lead{font:19px/1.6 Georgia,'Songti SC',serif;max-width:710px;margin:23px auto;color:var(--muted);text-wrap:pretty}.essay-byline{display:flex;justify-content:center;align-items:center;gap:8px 18px;flex-wrap:wrap;font-size:12px;line-height:1.6;color:var(--muted);margin:23px 0 0}.essay-author{color:var(--ink)}.published-page .essay-cover{max-width:none;margin:35px 0 0}.published-page .essay-cover img{width:100%;max-height:none;aspect-ratio:1672/941;object-fit:cover;border-radius:7px}.essay-cover figcaption{font-size:11px;line-height:1.65;margin-top:12px;color:var(--muted);text-align:right;max-width:none}.essay-toolbar{display:flex;align-items:center;gap:22px;margin:28px 0 0;padding:16px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:12px;line-height:1.6;color:var(--muted)}.essay-toolbar>button{margin-left:auto;display:flex;align-items:center;gap:9px;border:1px solid var(--line);background:transparent;border-radius:5px;padding:8px 12px;font-size:12px;min-height:41px;transition:background .25s,border-color .25s}.essay-toolbar>button:hover,.essay-toolbar>button[aria-pressed=true]{background:var(--soft);border-color:var(--accent)}.type-icon{font:18px/1 Georgia,serif;color:var(--ink)}.essay-layout{display:grid;grid-template-columns:190px minmax(0,1fr);gap:68px;align-items:start;margin-top:57px}.essay-sidebar{position:sticky;top:104px;font-size:13px;line-height:1.7;padding-top:8px}.essay-content{min-width:0;max-width:730px}.published-page .published-body{max-width:none}.published-page .published-body p{font:20px/1.78 Georgia,'Songti SC','Noto Serif CJK SC',serif;margin:0 0 28px;letter-spacing:.02px;text-wrap:pretty}.published-page .published-body>.source-block:first-of-type p{font-size:22px;line-height:1.72}.published-page .published-body blockquote{border-left:2px solid var(--accent);margin:36px 0;padding:7px 0 7px 25px}.published-page .published-body blockquote p{font-size:22px;line-height:1.6;color:var(--ink);font-style:italic;margin:13px 0}.published-page .published-body strong{font-weight:600}.published-page .archive-image-note{border-left:1px solid var(--line);padding:7px 0 7px 17px;margin:13px 0 29px}.published-page .archive-image-note p{font:12px/1.8 -apple-system,BlinkMacSystemFont,'PingFang SC',sans-serif;color:var(--muted);margin:0}.published-page .archive-source-note{font:12px/1.8 -apple-system,BlinkMacSystemFont,'PingFang SC',sans-serif;color:var(--muted);border-top:1px solid var(--line);padding-top:22px;margin-top:45px}.essay-language[data-article-language=zh]{display:none}html[lang=zh-CN] .essay-language[data-article-language=zh]{display:block}html[lang=zh-CN] .essay-language[data-article-language=en]{display:none}.essay-byline .essay-language[data-article-language=en]{display:inline}html[lang=zh-CN] .essay-byline .essay-language[data-article-language=zh]{display:inline}html[lang=zh-CN] .essay-byline .essay-language[data-article-language=en]{display:none}html[lang=zh-CN] .essay-header h1{font:600 clamp(33px,3.7vw,47px)/1.4 'Songti SC','Noto Serif CJK SC',serif;letter-spacing:.35px}html[lang=zh-CN] .essay-header .page-lead{font-size:18px;line-height:1.85}html[lang=zh-CN] .published-page .published-body p{font-family:'Songti SC','Noto Serif CJK SC',serif;font-size:19px;line-height:2;letter-spacing:.25px}html[lang=zh-CN] .published-page .published-body>.source-block:first-of-type p{font-size:20px}html[lang=zh-CN] .published-page .archive-image-note p{font-size:12px;font-family:-apple-system,BlinkMacSystemFont,'PingFang SC',sans-serif;line-height:1.8}html[data-reading-size=large] .published-page .published-body p{font-size:23px;line-height:1.8}html[data-reading-size=large][lang=zh-CN] .published-page .published-body p{font-size:22px;line-height:2}html[data-reading-size=large] .published-page .archive-image-note p{font-size:13px}.essay-author-card{display:flex;gap:21px;align-items:flex-start;margin:45px 0 0;padding:27px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.essay-author-card img{width:58px;height:58px;object-fit:cover;object-position:50% 23%;border-radius:50%;background:var(--soft);flex-shrink:0}.essay-author-card .eyebrow{font-size:9px;letter-spacing:1.4px;margin-bottom:9px}.essay-author-card h2{font:400 21px/1.4 Georgia,'Songti SC',serif;letter-spacing:-.2px;margin:0 0 9px}.essay-author-card p:not(.eyebrow){font-size:13px;line-height:1.75;color:var(--muted);margin:0 0 10px}.essay-author-card .text-link{font-size:12px}.essay-related{border-top:1px solid var(--line);padding-top:32px;margin-top:76px}.essay-related-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:35px}.essay-related-art,.journal-card-art,.journal-feature-art{margin:0;overflow:hidden;border-radius:6px}.essay-related-art img,.journal-card-art img,.journal-feature-art img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;transition:transform .65s cubic-bezier(.22,1,.36,1)}.essay-related-art figcaption,.journal-card-art figcaption,.journal-feature-art figcaption{display:none}.essay-related-card:hover img,.journal-card:hover img,.journal-feature:hover img{transform:scale(1.025)}.essay-related-card time{display:block;font-size:11px;color:var(--muted);margin:18px 0 11px}.essay-related-card h3{font:400 24px/1.3 Georgia,'Songti SC',serif;letter-spacing:-.3px;margin:0}.journal-intro{display:flex;justify-content:space-between;align-items:center;gap:35px;margin:15px 0 31px}.journal-intro p{font-size:18px;line-height:1.75;margin:8px 0}.journal-follow{display:flex;align-items:center;gap:14px;font-size:12px;color:var(--muted)}.journal-follow img{width:84px;height:84px;background:white;border:1px solid var(--line);border-radius:5px}.journal-feature{display:grid;grid-template-columns:1.18fr 1fr;gap:36px;align-items:center;padding:0 0 35px;border-bottom:1px solid var(--line);margin-bottom:34px}.journal-feature h3{font:400 32px/1.22 Georgia,'Songti SC',serif;letter-spacing:-.8px;margin:13px 0 17px}.journal-feature p:not(.eyebrow){font:17px/1.65 Georgia,'Songti SC',serif;color:var(--muted);margin:12px 0 17px}.journal-feature .eyebrow{font-size:10px;letter-spacing:1px}.journal-feature time{display:inline-block;font-size:11px;color:var(--muted);margin-right:20px}.journal-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:38px 35px}.journal-card{display:block}.journal-card-meta{display:flex;justify-content:space-between;gap:15px;font-size:11px;color:var(--muted);line-height:1.6;margin-top:18px}.journal-card h3{font:400 27px/1.25 Georgia,'Songti SC',serif;letter-spacing:-.45px;margin:12px 0 13px}.journal-card>p{font:16px/1.7 Georgia,'Songti SC',serif;color:var(--muted);margin:12px 0 17px}.journal-card .text-link{font-size:12px}.tool-walkthrough{padding-top:32px!important}.tool-io{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:16px 0 18px;margin:29px 0}.tool-io h3{font-size:16px;margin:8px 0 12px}.tool-io ul{padding-left:18px;margin:0}.tool-io li{font-size:13px;line-height:1.8;color:var(--muted);margin:6px 0}.tool-steps{list-style:none;padding:0;margin:25px 0 33px}.tool-steps li{display:flex;gap:23px;border-top:1px solid var(--line);padding:19px 0}.tool-steps .number{padding-top:3px;min-width:20px}.tool-steps h4{font-size:17px;line-height:1.45;margin:0 0 11px;font-weight:550}.article-body .tool-steps p{font-size:16px;line-height:1.85;margin:0!important}.tool-example{background:var(--soft);padding:24px 27px;border-radius:6px;margin:15px 0 32px}.tool-example .eyebrow{font-size:10px;margin:0 0 12px}.tool-example h3{font-size:20px;line-height:1.4;margin:0 0 16px}.article-body .tool-example p{font-size:16px;line-height:1.85;margin:0!important}.tool-method{background:white;border-radius:6px}.recorded-video{border-radius:8px;overflow:hidden;background:#0a1019;margin:27px 0}.recorded-video video{display:block;width:100%;height:auto;aspect-ratio:16/9}.recorded-video-note{font-size:12px!important;color:var(--muted);line-height:1.85!important}html[data-theme=dark] .essay-cover img{border:1px solid var(--line)}@media(max-width:900px){.essay-layout{grid-template-columns:1fr;gap:30px;margin-top:30px}.essay-sidebar{position:static;padding:0}.essay-content{max-width:730px;margin:0 auto}.essay-header{margin-top:28px}.journal-feature{grid-template-columns:1fr;gap:23px}.journal-feature h3{font-size:29px}.journal-feature-art img{max-height:420px}.journal-follow{flex-direction:column;gap:7px}.journal-intro{gap:24px}}@media(max-width:640px){.published-page{padding-top:28px}.essay-header{margin:30px auto 23px}.published-page .essay-header h1{font-size:34px;line-height:1.16;letter-spacing:-.8px}.published-page .essay-header .page-lead{font-size:17px;line-height:1.6;margin:20px auto}.essay-byline{font-size:11px;gap:7px 11px;margin-top:20px}.published-page .essay-cover{margin-top:27px}.essay-cover figcaption{font-size:10px;line-height:1.7;text-align:left}.essay-toolbar{gap:16px;font-size:10px;margin-top:22px;padding:12px 0}.essay-toolbar>span{display:none}.essay-toolbar>button{padding:8px 10px;font-size:11px}.published-page .published-body p{font-size:18px;line-height:1.78;margin-bottom:24px}.published-page .published-body>.source-block:first-of-type p{font-size:19px}.published-page .published-body blockquote{margin:29px 0;padding-left:19px}.published-page .published-body blockquote p{font-size:20px}.essay-author-card{gap:17px}.essay-author-card img{width:48px;height:48px}.essay-author-card h2{font-size:19px}.essay-related-grid,.journal-grid{grid-template-columns:1fr;gap:32px}.essay-related{margin-top:52px}.essay-related-card h3{font-size:24px}.journal-intro p{font-size:16px;line-height:1.7}.journal-follow img{width:74px;height:74px}.journal-feature h3{font-size:28px}.journal-feature p:not(.eyebrow){font-size:16px}.journal-card h3{font-size:26px}.tool-io{grid-template-columns:1fr;gap:20px}.tool-steps li{gap:16px}.tool-example{padding:23px}.article-body .tool-steps p,.article-body .tool-example p{font-size:15px}.tool-example h3{font-size:18px}html[lang=zh-CN] .essay-header h1{font-size:31px;line-height:1.45;letter-spacing:.25px}html[lang=zh-CN] .published-page .published-body p{font-size:18px;line-height:2}html[lang=zh-CN] .published-page .published-body>.source-block:first-of-type p{font-size:19px}html[data-reading-size=large] .published-page .published-body p{font-size:21px}html[data-reading-size=large][lang=zh-CN] .published-page .published-body p{font-size:20px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.essay-toolbar>button,}@media print{.essay-sidebar,.essay-toolbar,.essay-related,.journal-follow,.recorded-video{display:none}.essay-layout{display:block}.essay-cover{max-width:650px!important;margin:auto!important}.published-page .essay-header h1{font-size:30px}.published-page .published-body p{font-size:11pt;line-height:1.7}.essay-author-card{break-inside:avoid}}

.essay-layout{display:block}.essay-content{margin-left:auto;margin-right:auto;max-width:730px}.essay-afterword{margin-top:50px;padding-top:27px;border-top:1px solid var(--line)}.essay-afterword>.eyebrow{font:10px/1.7 -apple-system,BlinkMacSystemFont,"PingFang SC",sans-serif;letter-spacing:1.1px;margin:0 0 13px}.essay-afterword h2{font:400 25px/1.4 Georgia,"Songti SC",serif;letter-spacing:-.3px;margin:0 0 21px}.essay-afterword p:not(.eyebrow){font:16px/1.9 Georgia,"Songti SC",serif;color:var(--muted);margin:0 0 20px}html[lang=zh-CN] .essay-afterword p:not(.eyebrow){font-size:16px;line-height:2}@media(max-width:640px){.essay-afterword{margin-top:40px;padding-top:23px}.essay-afterword h2{font-size:23px}.essay-afterword p:not(.eyebrow){font-size:15px}html[lang=zh-CN] .essay-afterword p:not(.eyebrow){font-size:15px}}

.essay-layout{display:grid;grid-template-columns:190px minmax(0,1fr);gap:68px;align-items:start}.essay-content{margin:0;max-width:730px}.essay-sidebar{position:sticky;top:104px;padding-top:8px}.reader-outline{border-top:1px solid var(--line);padding-top:17px}.reader-outline>summary{font-size:11px;letter-spacing:1.1px;font-weight:600;cursor:pointer;margin-bottom:18px;list-style:none}.reader-outline>summary::-webkit-details-marker{display:none}.reader-outline>summary:after{content:'−';float:right;color:var(--muted);font-size:15px}.reader-outline:not([open])>summary:after{content:'+'}.essay-toc{display:flex;flex-direction:column;align-items:stretch;gap:1px}.essay-toc a{display:flex;gap:12px;align-items:baseline;padding:10px 0;color:var(--muted);line-height:1.65;font-size:12px;border-bottom:1px solid transparent;transition:color .25s,border-color .25s}.essay-toc a:after{display:none}.essay-toc a:hover,.essay-toc a[aria-current=location]{color:var(--ink);border-bottom-color:var(--line)}.essay-toc a[aria-current=location] .toc-number{color:var(--accent)}.toc-number{font-size:10px;letter-spacing:.5px;color:var(--muted);min-width:15px}.essay-back{font-size:11px;margin-top:25px}.source-block[data-reading-target]{scroll-margin-top:25px}.source-block[data-reading-target]:focus{outline:none}.toc-afterword{margin-top:12px}.essay-afterword{scroll-margin-top:25px}@media(max-width:900px){.essay-layout{display:block}.essay-content{margin:0 auto}.essay-sidebar{position:static;padding:0;margin-bottom:29px}.reader-outline{padding-top:14px;border-bottom:1px solid var(--line)}.reader-outline>summary{margin-bottom:15px}.essay-toc{padding-bottom:17px}.essay-back{display:none}}@media(prefers-reduced-motion:reduce){.essay-toc a{transition:none}}