:root{--bg:#fafafa;--paper:#fff;--ink:#09090b;--muted:#71717a;--line:#e4e4e7;--blue:#2563eb}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Roboto,Arial,sans-serif;font-size:14px;line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:var(--blue);text-underline-offset:3px}
a:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:2px}
.wrap{width:min(1100px,calc(100% - 40px));margin-inline:auto}
.story-hero{background:var(--bg)}
.story-nav{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 0 14px;border-bottom:1px solid var(--line)}
.brand{display:inline-flex;align-items:center;gap:9px;color:var(--ink);text-decoration:none;font-size:14px;font-weight:750;letter-spacing:.025em}
.brand img{width:30px;height:30px;border-radius:50%}
.story-nav-actions{display:flex;align-items:center;gap:14px;color:var(--muted);font-size:12px}
.story-nav-actions>a:first-child{color:inherit;text-decoration:none}.story-nav-actions>a:first-child:hover{text-decoration:underline}
.language-switch{display:flex;align-items:center;gap:2px;padding:3px;border:1px solid var(--line);border-radius:7px;background:var(--paper)}
.language-switch a{min-width:31px;padding:4px 7px;border-radius:4px;color:var(--muted);font-size:11px;text-align:center;text-decoration:none}
.language-switch a[aria-current="page"]{background:var(--ink);color:#fff}
.story-heading{padding:26px 0 0}
.story-heading h1{margin:0;font-size:clamp(24px,2.2vw,28px);font-weight:700;line-height:1.3;letter-spacing:-.015em}
.story-heading p{margin:5px 0 0;color:var(--muted);font-size:14px}
.story-main{display:grid;grid-template-columns:200px minmax(0,1fr);gap:0 32px;padding-top:0;padding-bottom:64px}
.story-intro{grid-column:1/-1;max-width:790px;margin:20px 0 23px;font-size:15px;line-height:1.7}
.story-intro p{margin:0}.intro-criteria{display:grid;gap:4px;margin:14px 0;padding-left:1.5em;list-style:decimal;font-weight:600}
.story-toc{grid-column:1;grid-row:2/span 5;align-self:start;position:sticky;top:16px;padding:5px 0 5px 11px;border-left:1px solid var(--line);display:grid;gap:12px;color:var(--muted);font-size:12px}
.story-toc a{color:inherit;text-decoration:none}.story-toc a:hover{color:var(--ink)}
.article-section,.conclusion,.sources{grid-column:2;min-width:0;margin:0 0 20px;border:1px solid var(--line);border-radius:8px;background:var(--paper);box-shadow:0 1px 2px rgba(0,0,0,.05);overflow:hidden}
.article-section{position:relative}
.section-note,.conclusion:before,.sources:before{display:grid;place-items:center;position:absolute;top:10px;left:14px;width:24px;height:24px;border-radius:6px;background:#18181b;color:#fff;font-size:12px;font-weight:700;line-height:1}
.section-note{font-size:0}.section-note:before{content:attr(data-letter);font-size:12px}
.article-copy{max-width:none}
.article-copy h2,.conclusion h2,.sources h2{margin:0;padding:11px 16px 11px 52px;border-bottom:1px solid var(--line);font-size:16px;font-weight:650;line-height:1.4;letter-spacing:0;color:var(--ink)}
.article-copy p,.conclusion p{margin:14px 16px 0;color:var(--ink);font-size:14px;line-height:1.72}
.article-copy p:last-child,.conclusion p:last-child{margin-bottom:16px}
.article-copy .standout{font-size:14px;line-height:1.72}
.article-copy blockquote{margin:14px 16px 0;padding:4px 10px;border-left:2px solid var(--line);color:var(--muted);font-size:14px;line-height:1.55}
.article-copy .boundary{border:0;padding:0}
.article-copy sup{font-size:10px;line-height:0}
.article-copy sup+sup{margin-left:3px}.article-copy a[href^="https://x.com/"]{white-space:nowrap}
.conclusion,.sources{position:relative}
.conclusion:before{content:"D"}.sources:before{content:"E"}
.sources ol{margin:14px 16px 17px;padding-left:20px;font-size:13px;line-height:1.65}
.sources li{padding-left:2px;margin:0 0 7px}.sources li:last-child{margin-bottom:0}
.story-footer{padding:15px 0 30px;border-top:1px solid var(--line);color:#a1a1aa;font-size:11px}
.story-footer .wrap{display:flex;align-items:flex-start;justify-content:space-between;gap:20px}.story-footer strong{color:var(--ink);font-size:12px;letter-spacing:.05em}.story-footer p{max-width:670px;margin:0;text-align:right}
html:lang(zh) .story-footer p{white-space:pre-line;text-align:left;text-wrap:pretty;line-height:1.85}
@media(max-width:760px){.wrap{width:calc(100% - 24px)}.story-nav{padding:12px 0}.brand{font-size:12px}.brand img{width:26px;height:26px}.story-nav-actions{gap:9px}.story-heading{padding-top:23px}.story-heading h1{font-size:24px}.story-main{grid-template-columns:1fr;padding-bottom:35px}.story-intro,.story-toc,.article-section,.conclusion,.sources{grid-column:1}.story-intro{margin:19px 0 21px;font-size:14px}.story-toc{grid-row:auto;position:static;margin-bottom:24px;gap:9px}.article-section,.conclusion,.sources{margin-bottom:18px}.article-copy p,.conclusion p{font-size:14px}.story-footer .wrap{display:block}.story-footer p{margin-top:7px;text-align:left}}
html:lang(ko) body{font-family:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;word-break:keep-all;overflow-wrap:anywhere}
@media(max-width:600px){.story-nav{flex-wrap:wrap}.story-nav-actions{flex-wrap:wrap;gap:12px}.language-switch a{min-height:36px;display:grid;place-items:center}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}