:root{--ink:#142d34;--muted:#65767b;--green:#087a5d;--line:#dce4e3;--paper:#fafbf8}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #59ae98;outline-offset:4px}.site-header{height:88px;max-width:1240px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:0 42px;border-bottom:1px solid var(--line)}.brand{font-size:25px;letter-spacing:-1px;font-weight:800;display:inline-flex;align-items:center;gap:5px}.brand-dot{width:7px;height:7px;border-radius:50%;background:var(--green);margin-top:14px}nav{display:flex;gap:34px;font-size:14px}nav .active{color:var(--green)}main{max-width:1240px;margin:auto;padding:0 42px}.hero{padding:76px 0 48px;position:relative}.eyebrow{font-size:11px;font-weight:700;letter-spacing:2px;color:var(--green);text-transform:uppercase}.hero h1{font-size:64px;line-height:1.22;letter-spacing:-2px;margin:24px 0}.hero p{color:var(--muted);line-height:1.9;font-size:16px;max-width:580px}.primary{margin-top:15px;display:inline-flex;align-items:center;gap:48px;padding:15px 22px;background:var(--green);color:white;font-size:14px;border-radius:3px}.hero-rule{position:absolute;right:0;bottom:65px;display:flex;gap:26px;color:var(--muted);font-size:12px;border-top:1px solid var(--line);padding-top:20px}.section-head{display:flex;justify-content:space-between;align-items:flex-end;padding:30px 0;border-top:1px solid var(--ink)}h2{font-size:30px;letter-spacing:-.7px;margin:12px 0 0}.section-head p{font-size:13px;color:var(--muted);margin:0}.article-row{display:grid;grid-template-columns:150px 1fr 40px;gap:25px;align-items:start;border-bottom:1px solid var(--line);padding:32px 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.brand{font-size:21px}.article-page{max-width:1060px;padding-top:36px;padding-bottom:65px}.back{font-size:13px;color:var(--muted)}.article-heading{margin-top:42px;border-bottom:1px solid var(--line);padding-bottom:26px}.article-heading h1{font-size:36px;line-height:1.55;letter-spacing:-.6px;margin:15px 0}.article-meta{display:flex;gap:25px;color:var(--muted);font-size:12px}.article-content{font-size:16px;line-height:1.95;padding-top:24px;overflow-wrap:anywhere}.article-content p,.article-content li{max-width:900px}.article-content a{color:var(--green);text-decoration:underline;text-underline-offset:3px}.article-content img{max-width:100%;height:auto}.article-content details{border:1px solid var(--line);margin:25px 0;padding:15px 18px;font-size:14px}.article-content summary{cursor:pointer;color:var(--muted)}.rank-block{margin:32px 0;border:1px solid var(--line);background:#fff;border-radius:4px;overflow:hidden}.rank-toolbar{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px}.rank-toolbar label{font-size:13px;font-weight:600}.rank-toolbar input{width:210px;max-width:100%;margin-left:10px;border:1px solid #cad8d2;padding:10px 12px;border-radius:3px;font:inherit;font-size:13px}.rank-count{font-size:12px;color:var(--muted);white-space:nowrap}.rank-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}table.aigcrank-rank{border-collapse:collapse;width:100%;font-size:13px;line-height:1.6;white-space:nowrap}table.aigcrank-rank th{background:#edf3ef;text-align:left;padding:14px 16px;border-bottom:1px solid #d3dfd8;font-size:12px}table.aigcrank-rank td{padding:13px 16px;border-bottom:1px solid #edf0ee}table.aigcrank-rank tr:last-child td{border-bottom:0}table.aigcrank-rank tr:hover td{background:#f6f9f6}table.aigcrank-rank th button{color:inherit;border:0;padding:0;background:none;font:inherit;cursor:pointer;text-align:left}table.aigcrank-rank th button::after{content:' ↕';color:#809b8f;font-weight:400}.rank-note{padding:11px 18px;border-top:1px solid var(--line);font-size:11px;color:var(--muted);margin:0;background:#fafcf9}.article-bottom{border-top:1px solid var(--line);margin-top:40px;padding-top:25px;font-size:13px}.pagebar{padding-top:20px}button,input{font-family:inherit}[hidden]{display:none!important}@media(max-width:700px){.site-header{height:72px;padding:0 20px}.brand{font-size:22px}nav{gap:20px;font-size:12px}main{padding:0 20px}.hero{padding:48px 0 35px}.hero h1{font-size:42px;letter-spacing:-1px}.hero p{font-size:14px}.hero-rule{position:static;margin-top:40px;justify-content:space-between;padding-top:18px;gap:15px}.section-head{display:block;padding:26px 0}.section-head p{margin-top:15px;font-size:12px}.article-row{grid-template-columns:1fr 25px;gap:12px;padding:24px 0}.row-date{grid-column:1/3;display:flex;gap:20px;align-items:center;font-size:12px}.row-date span{margin-top:0}.row-copy h3{font-size:19px}.row-copy{grid-column:1}.row-arrow{grid-column:2;grid-row:2}.site-footer{padding:25px 20px;gap:15px;flex-wrap:wrap}.site-footer p{margin:0}.site-footer>span{margin-left:0;width:100%}.article-page{padding-top:24px}.article-heading{margin-top:30px}.article-heading h1{font-size:26px}.article-content{font-size:15px}.rank-toolbar{align-items:flex-start;flex-direction:column;gap:12px;padding:14px}.rank-toolbar label{display:flex;align-items:center;justify-content:space-between;width:100%}.rank-toolbar input{width:65%;margin-left:12px}.rank-count{align-self:flex-end}.rank-note{font-size:10px;padding:10px 14px}h2{font-size:26px}}

.archive-page{padding-top:48px;padding-bottom:70px;min-height:70vh}.archive-page h1{font-size:36px;line-height:1.4}.archive-help,.archive-total{color:var(--muted);font-size:14px;line-height:1.8}.archive-filters{display:flex;flex-wrap:wrap;align-items:end;gap:18px;padding:22px 0;border-bottom:1px solid var(--line)}.archive-filters label{display:grid;gap:8px;font-size:13px}.archive-filters select{min-width:180px;max-width:100%;border:1px solid #cad8d2;padding:11px;background:#fff;color:var(--ink);border-radius:3px;font:inherit}.archive-filters button{background:var(--green);color:#fff;padding:12px 24px;border:0;border-radius:3px;font-size:14px;cursor:pointer}.archive-filters>a{padding:12px 0;font-size:13px;color:var(--muted)}.pagebar{display:flex;flex-wrap:wrap;gap:12px}.pagebar a,.pagebar strong{padding:8px 13px;border:1px solid var(--line);font-size:13px}.pagebar strong{background:var(--green);color:white}@media(max-width:700px){.archive-page h1{font-size:28px}.archive-filters label{flex:1 1 130px;min-width:0}.archive-filters select{min-width:0;width:100%}}
.historical-note{padding:20px 24px;background:#edf3ef;border-left:3px solid var(--green);margin-bottom:28px;font-size:14px}.historical-note p{margin-bottom:0;color:var(--muted)}

.brand-logo{display:block;width:160px;max-width:100%;height:auto}.site-header nav{flex-wrap:wrap;gap:22px}.site-footer>a:not(.brand){font-size:12px;color:var(--muted)}@media(max-width:700px){.brand-logo{width:128px}.site-header{height:auto;min-height:72px;gap:12px;padding-top:16px;padding-bottom:16px;flex-wrap:wrap}.site-header nav{gap:18px}}
.article-heading .eyebrow,.about .eyebrow{text-transform:none}

/* Keep native homepage pagination inside the mobile viewport. */
.pagebar>nav{flex-wrap:wrap;gap:8px;max-width:100%}.rank-scroll:focus-visible{outline:3px solid #59ae98;outline-offset:-3px}
.image-hint{color:var(--muted);font-size:12px;margin:12px 0}.rank-scroll table th[scope=col]{white-space:nowrap}
/* Asset release: content review 20261030. */

/* Report 55: paragraph and heading layout, scoped to its body wrapper. */
.aigcrank-report-layout{max-width:900px;margin:0 auto;line-height:1.95}
.aigcrank-report-layout p{margin:1.05em 0;text-align:left}
.aigcrank-report-layout h2{font-size:1.5em;line-height:1.5;letter-spacing:0;margin:2em 0 .75em}
.aigcrank-report-layout h3{font-size:1.15em;line-height:1.6;margin:1.7em 0 .65em}
.aigcrank-report-layout>p:first-child{margin-top:0}
.aigcrank-report-layout .report-image{margin:1.65em 0}
.aigcrank-report-layout .report-image img{display:block;margin:0 auto}
.aigcrank-report-layout .report-method{padding:1em 1.25em;margin:1.6em 0;border-left:3px solid var(--green);background:#edf3ef;font-size:.92em}
.aigcrank-report-layout .report-method p{margin:0}
.aigcrank-report-layout hr{border:0;border-top:1px solid var(--line);margin:2.3em 0}