:root{color-scheme:dark;--canvas:#151210;--card:#221d18;--soft:#1c1815;--ink:#f2ede4;--body:#c7c0b4;--muted:#b0a798;--accent:#e08a5f;--line:#463c32;--teal:#82c9b6;--amber:#edbd78;--well:#100e0c;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--canvas)}
html[data-theme=light]{color-scheme:light;--canvas:#faf7f2;--card:#fffdf9;--soft:#f3efe7;--ink:#26211b;--body:#4c463d;--muted:#655d51;--accent:#994a28;--line:#d9cebe;--teal:#246b5a;--amber:#80551b;--well:#ece7dd}
*{box-sizing:border-box}body{margin:0;font-size:16px;line-height:1.65}a{color:var(--accent);text-underline-offset:4px}button,a,summary{touch-action:manipulation}button{font:inherit;cursor:pointer}a:hover{text-decoration-thickness:2px}button:hover{border-color:var(--accent)}:focus-visible{outline:3px solid var(--accent);outline-offset:4px}main:focus{outline:none}.wrap{width:calc(100% - 64px);max-width:1200px;margin:0 auto}.skip{position:absolute;top:12px;left:20px;padding:10px 18px;background:var(--card);transform:translateY(-160%);z-index:10}.skip:focus{transform:none}.header{display:flex;justify-content:space-between;align-items:center;gap:24px;min-height:88px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:650;color:var(--ink);font-size:19px}.brand img{object-fit:contain}.brand span{font-size:14px;font-weight:400;color:var(--muted)}.header-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap;font-size:13px}.header-actions a,.header-actions button{padding:10px 12px;min-height:44px;border:1px solid var(--line);border-radius:6px;background:transparent;color:var(--body);text-decoration:none}.hero{padding:64px 0 36px;max-width:910px}.kicker{font-size:12px;letter-spacing:1.8px;text-transform:uppercase;color:var(--accent);margin:0 0 16px;font-weight:650}h1,h2{font-family:Georgia,"Noto Serif SC",serif;font-weight:400;letter-spacing:-.025em;text-wrap:balance}h1{font-size:clamp(38px,5vw,64px);line-height:1.1;margin:0 0 24px}h2{font-size:clamp(28px,3vw,40px);line-height:1.25;margin:0 0 16px}h3{font-size:16px;line-height:1.5;margin:0 0 10px}p{margin:0 0 16px}.hero>p:not(.kicker){font-size:18px;line-height:1.85;color:var(--body);max-width:800px}.case-nav{display:flex;gap:12px;flex-wrap:wrap;margin:0 0 32px}.case-nav a{padding:10px 16px;border:1px solid var(--line);border-radius:6px;text-decoration:none;min-height:44px;font-size:14px;color:var(--body)}.case-nav a:hover{background:var(--card)}.scope{padding:18px 22px;border-left:3px solid var(--accent);background:var(--soft);font-size:14px;color:var(--body);line-height:1.8;margin:0 0 54px}.case{border-top:1px solid var(--line);padding:44px 0 52px;scroll-margin-top:24px}.case-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:24px}.case-heading>div{max-width:830px;min-width:0}.case-description{color:var(--body);line-height:1.8}.case-number{font-variant-numeric:tabular-nums;color:var(--accent);font-size:12px;letter-spacing:1.4px;margin:0 0 12px}.badge{display:inline-flex;border:1px solid var(--line);border-radius:999px;padding:6px 12px;font-size:12px;line-height:1.6;flex-shrink:0;color:var(--teal);margin-top:4px}.badge.partial{color:var(--amber)}.round-controls{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0 22px}.round-controls button{padding:10px 15px;min-height:46px;color:var(--body);background:var(--soft);border:1px solid var(--line);border-radius:6px;font-size:13px;line-height:1.5}.round-controls button[aria-pressed=true]{color:var(--ink);border-color:var(--accent);background:var(--card);box-shadow:inset 0 -2px var(--accent)}.comparison{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.comparison figure{margin:0;min-width:0}.image-link{display:block;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--well);line-height:0}.image-link:hover{border-color:var(--accent)}.comparison img{display:block;width:100%;height:auto;object-fit:contain}.comparison figcaption{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:10px 0 0;color:var(--body);font-size:13px}.comparison figcaption span:last-child{color:var(--muted);font-size:12px}.comparison.initial{grid-template-columns:minmax(0,1fr);max-width:680px;margin:auto}.round-note{color:var(--muted);font-size:12px;margin:14px 0 24px}.facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:24px 0}.fact{border:1px solid var(--line);background:var(--card);border-radius:8px;padding:18px 20px;min-width:0}.fact dt{font-size:12px;color:var(--muted);margin-bottom:7px}.fact dd{margin:0;font-size:22px;font-weight:550;line-height:1.45;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}.fact small{display:block;color:var(--muted);font-size:12px;line-height:1.7;font-weight:400;margin-top:5px}.process{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin:30px 0}.process>div{border-top:2px solid var(--line);padding-top:16px;min-width:0}.process h3{font-size:14px;color:var(--accent)}.process p{font-size:14px;color:var(--body);line-height:1.85}.caveat{font-size:13px;color:var(--body);padding:15px 18px;background:var(--soft);border-left:2px solid var(--amber);line-height:1.85}.details{border-bottom:1px solid var(--line);font-size:14px;margin-top:16px}.details>summary{padding:15px 0;cursor:pointer;min-height:48px;color:var(--body);font-weight:500}.details .content{padding:4px 0 20px}.table-wrap{overflow-x:auto;max-width:100%;border:1px solid var(--line);border-radius:6px;margin:12px 0 20px}table{width:100%;border-collapse:collapse;font-size:13px;line-height:1.7;min-width:520px;text-align:left}th{color:var(--ink);background:var(--soft);font-weight:550}td,th{padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}tr:last-child td{border-bottom:0}td{color:var(--body)}code{font-family:ui-monospace,Menlo,monospace;font-size:.88em;overflow-wrap:anywhere}.prompt{white-space:pre-wrap;overflow-wrap:anywhere;font-family:inherit;color:var(--body);background:var(--soft);padding:18px;line-height:1.8;max-height:460px;overflow:auto;border:1px solid var(--line);border-radius:6px;font-size:13px}.evidence-links{display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin:20px 0 0;font-size:13px}.evidence-links a{padding:8px 0}.source-id{font-size:11px;color:var(--muted);overflow-wrap:anywhere;margin-top:12px}.review-note{font-size:13px;color:var(--muted);line-height:1.85}.method{border-top:1px solid var(--line);padding:40px 0;max-width:850px}.method p,.method li{font-size:14px;color:var(--body);line-height:1.9}.method ul{padding-left:20px}.footer{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;border-top:1px solid var(--line);padding:22px 0 32px;font-size:12px;color:var(--muted)}.footer a{padding:4px 0}html[lang=zh-Hans] h1,html[lang=zh-Hans] h2{font-family:"Songti SC","Noto Serif SC",Georgia,serif;line-height:1.35}html[lang=zh-Hans] .hero>p:not(.kicker){font-size:17px}
.contact-detail svg{display:block;width:100%;height:auto;aspect-ratio:230/125;overflow:hidden}.contact-detail+p{margin-top:16px}
.model-case .comparison h3{font-size:15px;color:var(--ink);margin-bottom:12px}.model-caption{font-size:13px;color:var(--body);line-height:1.85;margin:12px 0 0}.model-subtitle{font-size:20px;font-weight:500;margin:34px 0 20px}.model-reference{max-width:780px}.model-case .caveat{margin-top:24px}
/* Editorial hierarchy follows the project homepage, with accessible contrast. */
:root{--font-display:'Cormorant Garamond','Tiempos Headline',Georgia,serif;--motion:180ms ease}
h1,h2{font-family:var(--font-display)}
.source-status{display:inline-flex;align-items:center;gap:10px;margin-top:28px;padding:7px 12px;border:1px solid var(--line);border-radius:999px;font-size:12px;color:var(--muted)}
.source-status::before{content:'';width:6px;height:6px;border-radius:50%;background:currentColor;flex-shrink:0}
.source-status[data-mode=connected]{color:var(--teal)}
.source-status[data-mode=fallback]{color:var(--amber);border-radius:8px}
.hero{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(260px,.8fr);gap:72px;align-items:center;max-width:none;padding:48px 0 52px}
.hero h1{font-size:clamp(44px,5.2vw,76px);max-width:750px}
.hero-description{font-size:17px;line-height:1.85;color:var(--body);max-width:590px;margin-bottom:28px}
.primary-link{display:inline-flex;align-items:center;justify-content:center;gap:28px;min-height:46px;padding:12px 20px;border-radius:8px;background:var(--accent);color:var(--canvas);text-decoration:none;font-size:14px;font-weight:550;transition:filter var(--motion)}
.primary-link:hover{filter:brightness(1.12);text-decoration:none}
.archive-card{background:#221d18;color:#f2ede4;padding:32px;border:1px solid #463c32;border-radius:16px}
.archive-card .kicker{color:#e08a5f}
.archive-numbers{display:flex;gap:52px;margin:16px 0 24px}
.archive-numbers strong{font-family:var(--font-display);font-size:64px;font-weight:400;line-height:1}
.archive-numbers small{display:block;font-family:Inter,sans-serif;font-size:12px;letter-spacing:.02em;color:#c7c0b4;margin-top:10px}
.archive-card>p:not(.kicker){font-size:13px;color:#c7c0b4;line-height:1.8}
.archive-card ol{list-style:none;padding:0;margin:20px 0 0;border-top:1px solid #463c32;counter-reset:chain}
.archive-card li{counter-increment:chain;padding:12px 0;border-bottom:1px solid #463c32;font-size:13px;color:#e4ddd0}
.archive-card li::before{content:'0' counter(chain);font-family:ui-monospace,monospace;color:#e08a5f;margin-right:18px;font-size:11px}
.case{padding-top:52px}.image-link{border-radius:12px}.fact{border-radius:12px}
.reuse{display:flex;align-items:center;justify-content:space-between;gap:40px;padding:36px;margin:16px 0 52px;border:1px solid var(--line);border-radius:16px;background:var(--soft)}
.reuse h2{margin-bottom:12px}.reuse p:not(.kicker){font-size:14px;color:var(--body);margin:0;max-width:620px}.reuse .primary-link{flex-shrink:0}
@media(max-width:900px){.hero{gap:32px;grid-template-columns:minmax(0,1fr) 270px}.archive-card{padding:24px}.archive-numbers{gap:36px}.reuse{padding:28px}}
@media(max-width:600px){.hero{grid-template-columns:1fr;gap:28px;padding:28px 0 32px}.hero h1{font-size:42px}.hero-description{font-size:16px}.archive-card{padding:24px}.archive-card ol{display:flex;gap:16px;flex-wrap:wrap}.archive-card li{border:0;padding-bottom:0}.archive-card li::before{margin-right:8px}.archive-numbers strong{font-size:48px}.archive-numbers{margin:12px 0 20px}.reuse{display:block;padding:24px}.reuse .primary-link{margin-top:24px}.source-status{margin-top:20px;font-size:12px}}
@media(max-width:900px){.header{gap:12px;flex-wrap:wrap;padding:16px 0}.brand span{display:none}.case-heading{display:block}.badge{margin:0 0 10px}.facts{gap:10px}.fact{padding:14px}.fact dd{font-size:18px}.process{gap:18px}}
@media(max-width:600px){.wrap{width:calc(100% - 32px)}.hero{padding:40px 0 24px}.header-actions{gap:8px}.header-actions a,.header-actions button{padding:8px 10px}.hero>p:not(.kicker){font-size:16px}.scope{margin-bottom:32px;padding:15px 16px}.case{padding:32px 0}.comparison{grid-template-columns:1fr;gap:24px}.facts{grid-template-columns:1fr}.fact{display:grid;grid-template-columns:1fr 1.2fr;gap:12px;align-items:start}.fact dd{font-size:19px}.fact dt{padding-top:4px}.process{grid-template-columns:1fr;gap:10px}.case-heading h2{font-size:30px}.round-controls button{flex:1 1 44%;font-size:13px}.caveat{font-size:13px}.source-id{font-size:11px}.comparison figcaption{font-size:13px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation:none!important;transition:none!important}}