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:root{--content-width:1040px;--text-width:var(--content-width);--figure-width:var(--content-width);--title-size:clamp(36px,4vw,52px);--section-title-size:36px;--subsection-title-size:24px;--ink:#111111;--body:#333333;--muted:#666666;--accent:#111111;--soft:#f7f7f7;--line:#e5e5e5;--font:'Segoe UI','PingFang SC','Microsoft YaHei',Arial,sans-serif;--ease:cubic-bezier(.2,.7,.3,1)}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:100px;overflow-anchor:none}
body{margin:0;background:#fff;color:var(--body);font:19px/1.85 var(--font);-webkit-font-smoothing:antialiased}
button,select{font:inherit;color:inherit}button,a,summary,select{touch-action:manipulation;-webkit-tap-highlight-color:transparent}
button{cursor:pointer;background:none;border:0}button:disabled{opacity:.35;cursor:default}
a{color:inherit;text-decoration:none}img{display:block;max-width:100%;height:auto}
h1,h2,h3,p,figure{margin:0}h1,h2,h3{color:var(--ink);font-weight:600;line-height:1.4}strong{font-weight:600;color:var(--ink)}
p+p{margin-top:20px}button:focus-visible,a:focus-visible,summary:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--accent);outline-offset:5px}
::selection{background:#eeeeee}.prose{width:min(var(--text-width),calc(100% - 64px));margin-inline:auto}.wide{width:min(var(--figure-width),calc(100% - 64px));margin-inline:auto}
.skip-link{position:fixed;left:16px;top:-80px;z-index:100;background:var(--ink);color:#fff;padding:10px 20px}.skip-link:focus{top:10px}
.site-header{position:sticky;top:0;z-index:30;height:72px;background:#fffffff5;backdrop-filter:blur(14px);border-bottom:1px solid #e5e5e5}
.header-inner{max-width:1120px;height:100%;margin:auto;padding-inline:32px;display:flex;align-items:center;justify-content:space-between;gap:25px}
nav{display:flex;gap:32px;align-items:center}nav a{font-size:16px;color:#666666;transition:color .2s}nav a:hover,nav a[aria-current]{color:var(--ink)}
.language-switch{display:flex;border:1px solid var(--line);border-radius:7px;padding:3px;gap:3px;flex-shrink:0}
.language-switch button{font-size:15px;line-height:1.5;padding:5px 10px;border-radius:4px;color:var(--muted)}.language-switch button[aria-pressed=true]{background:#eeeeee;color:#222222}
.paper-header{padding-block:62px 36px;text-align:center}
.paper-meta{display:grid;gap:7px;margin-top:24px}
.paper-meta p{margin:0}.paper-authors{font-size:22px;line-height:1.5;color:var(--ink)}
.paper-venue{font-size:17px;line-height:1.65;color:var(--muted);text-wrap:balance}
h1{font-size:var(--title-size);line-height:1.22;letter-spacing:-.035em;text-wrap:balance;font-weight:650}
html[lang=en] h1{margin:auto}
.paper-actions{display:flex;gap:28px;align-items:center;justify-content:center;margin-top:29px;font-size:16px}
.primary-link{display:inline-flex;align-items:center;gap:14px;padding:10px 20px;background:#111111;color:white;border:1px solid #111111;border-radius:6px;transition:background .2s,transform .2s}
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.abstract{padding-top:6px}h2{font-size:var(--section-title-size);font-weight:700;line-height:1.3;letter-spacing:-.025em;margin-bottom:24px}h3{font-size:var(--subsection-title-size);font-weight:600;line-height:1.45;letter-spacing:-.015em;margin-bottom:18px}
.section{padding-top:76px}.paper-figure{margin-top:30px}
.problem-example{margin:27px 0;padding:23px 0 25px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.problem-example h3{font-size:var(--subsection-title-size);margin-bottom:18px;font-weight:600}
.problem-comparison{display:grid;grid-template-columns:1fr 1fr;gap:32px}.problem-comparison>div+div{padding-left:32px;border-left:1px solid var(--line)}
.problem-comparison h4{font-size:18px;font-weight:600;color:var(--accent);margin:0 0 7px}.problem-comparison p{font-size:18px;line-height:1.8}
.figure-button{display:block;width:100%;padding:0;border:1px solid transparent;border-radius:5px;cursor:zoom-in;transition:border-color .2s,box-shadow .2s;background:#fff}
.figure-button:hover{border-color:var(--line);box-shadow:0 6px 24px #00000008}.figure-button img{width:100%;height:auto}
#training-curves .figure-button{position:relative}
.curve-reveal-layer{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;overflow:hidden}
.motion-paused .curve-reveal-layer{display:none}
figcaption,.caption{font-size:16px;line-height:1.75;color:var(--muted)}figcaption{max-width:var(--text-width);margin:18px auto 0}
.hero-overview{margin-top:0;margin-bottom:64px}
.hero-overview .method-demo{margin-top:0}
.method-highlights{list-style:none;margin:22px 0 0;padding:0;font-size:18px;line-height:1.75}.method-highlights li+li{margin-top:10px}.method-highlights strong{color:#222222}
.method-steps{list-style:none;margin:32px 0 24px;padding:0;counter-reset:step}
.method-steps li{counter-increment:step;position:relative;display:grid;grid-template-columns:120px 1fr;column-gap:20px;padding:16px 0 16px 42px;border-top:1px solid var(--line);align-items:baseline}
.method-steps li:last-child{border-bottom:1px solid var(--line)}.method-steps li::before{content:counter(step);position:absolute;left:0;top:20px;width:24px;height:24px;border:1px solid #dddddd;border-radius:50%;display:grid;place-items:center;font-size:15px;color:var(--accent);line-height:1;background:#fafafa}
.method-steps li strong{font-size:19px;color:var(--accent)}.method-steps li p{font-size:18px;line-height:1.8}
.disclosure{margin-top:25px;border:1px solid #dddddd;border-radius:8px;font-size:18px;transition:border-color .18s ease}
.disclosure>summary{cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:22px;padding:18px 20px;list-style:none;color:#222222;line-height:1.65;background:#f5f5f5;border-radius:7px;box-shadow:inset 3px 0 #333333;transition:background .18s ease}
.disclosure>summary::-webkit-details-marker{display:none}.disclosure>summary::marker{content:''}
.disclosure-label{font-size:19px;font-weight:600;min-width:0}
.disclosure-toggle{display:inline-flex;align-items:center;gap:8px;flex-shrink:0;color:#222222;font-size:15px;font-weight:500;padding:5px 10px;border:1px solid #cccccc;border-radius:5px;background:#fff;line-height:1.6}
.disclosure-toggle svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;transition:transform .18s ease}
.disclosure>summary .when-open{display:none}.disclosure[open]>summary .when-closed{display:none}.disclosure[open]>summary .when-open{display:inline}.disclosure[open]>summary svg{transform:rotate(180deg)}
.disclosure[open]>summary{background:#eeeeee;border-radius:7px 7px 0 0;border-bottom:1px solid #dddddd}
.disclosure>summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
@media(hover:hover){.disclosure>summary:hover{background:#eeeeee}.disclosure:has(>summary:hover){border-color:#bbbbbb}}
.disclosure-body{padding:20px}.disclosure-body p{font-size:18px;color:#444444}
.results-block{margin-top:28px}.table-scroll{overflow-x:auto;overscroll-behavior-x:contain}
table{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums}
.summary-table caption{text-align:left;font-size:18px;color:#333333;padding-bottom:17px}
.summary-table thead{border-top:1px solid #cccccc;border-bottom:1px solid #cccccc;background:#fafafa}
.summary-table th,.summary-table td{text-align:center;padding:20px 16px;border-bottom:1px solid var(--line);white-space:nowrap}
.summary-table th{font-size:18px;font-weight:500}.summary-table thead th{font-weight:600;color:var(--ink)}.summary-table th:first-child{text-align:left;padding-left:22px}
.summary-table td{font-size:26px;line-height:1.6;color:#222222;letter-spacing:-.02em}.column-description{display:block;font-size:15px;font-weight:400;line-height:1.6;color:var(--muted);margin-top:2px}
.result-count{display:inline-grid}.result-count-target,.result-count-value{grid-area:1/1}
.result-count-target{opacity:0;user-select:none}
@media print{.result-count-target{opacity:1}.result-count-value{display:none}}
.result-takeaway{font-size:18px;line-height:1.85;margin-top:22px}
.comparison{margin-top:24px}.comparison-body{padding:22px 20px 24px}.chart-controls{display:flex;gap:24px;justify-content:space-between;align-items:center;margin-bottom:27px}
.task-tabs{display:flex;border-bottom:1px solid var(--line);gap:22px}.task-tabs button{font-size:16px;padding:9px 0;border-bottom:2px solid transparent;margin-bottom:-1px;white-space:nowrap;color:var(--muted)}.task-tabs button[aria-pressed=true]{color:var(--accent);border-color:var(--accent)}
.model-select{display:flex;align-items:center;gap:12px;font-size:15px}.model-select select{font-size:16px;background:white;border:1px solid #cccccc;padding:9px 12px;border-radius:5px;cursor:pointer}
#chart-heading{font-size:19px;font-weight:500;line-height:1.5;color:var(--body);margin:0 0 22px}.bar-chart{display:flex;flex-direction:column;gap:17px}
.bar-row{display:grid;grid-template-columns:170px 1fr 66px;gap:18px;align-items:center;min-height:25px}.bar-label{font-size:16px;line-height:1.5}.bar-label .ours{display:none}
.bar-track{height:18px;background:repeating-linear-gradient(to right,#e5e5e5 0,#e5e5e5 1px,transparent 1px,transparent 20%)}.bar-fill{width:0;height:100%;background:#cccccc;border-radius:0 3px 3px 0;transition:width .65s var(--ease)}.is-ours .bar-fill{background:#111111}.is-ours .bar-label,.is-ours .bar-value{color:#222222;font-weight:600}
.bar-value{text-align:right;font-size:16px;font-variant-numeric:tabular-nums}.bar-value small{font-size:15px;margin-left:2px}.bar-axis{display:flex;justify-content:space-between;padding-left:188px;padding-right:84px;font-size:14px;color:var(--muted)}
.chart-summary{font-size:16px;margin-top:22px}.exact-data{margin-top:21px;font-size:16px}.exact-data>summary{padding:14px 16px}.exact-data .disclosure-label{font-size:18px}.exact-data>.table-scroll{padding:0 16px}.exact-data th,.exact-data td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line);font-weight:400}.exact-data th{color:var(--ink);font-weight:600}.exact-data caption{text-align:left;padding-block:16px 14px}.exact-data .caption{margin:18px 16px}
.results-figure{margin-top:42px}.evidence-tabs{display:flex;gap:30px;border-bottom:1px solid var(--line);margin-bottom:26px}.evidence-tabs button{font-size:18px;color:var(--muted);padding:0 0 13px;border-bottom:2px solid transparent;margin-bottom:-1px;white-space:nowrap}.evidence-tabs button[aria-pressed=true]{color:var(--accent);border-color:var(--accent)}
.evidence-figure .figure-button{min-height:240px;display:flex;align-items:center;justify-content:center}#evidence-image{max-height:470px;object-fit:contain;width:100%;height:auto;animation:figure-in .3s var(--ease)}
.evidence-toolbar{display:flex;align-items:flex-start;gap:24px;margin-bottom:26px;border-bottom:1px solid var(--line)}
.evidence-toolbar .evidence-tabs{flex:1;min-width:0;margin:0;border-bottom:0}
.conversation-skip{display:inline-flex;align-items:center;justify-content:flex-end;gap:7px;flex-shrink:0;padding:1px 0 13px 8px;color:var(--accent);font-size:15px;line-height:1.85;white-space:nowrap}
.conversation-skip[hidden]{display:inline-flex;visibility:hidden;pointer-events:none}
.conversation-skip svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.conversation-skip:hover{color:#222222;text-decoration:underline;text-underline-offset:4px}
#conversation-stage{display:block;position:relative;width:100%;line-height:0}
.conversation-reveal-layer{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.conversation-reveal-layer foreignObject *{box-sizing:content-box}
#conversation-stage[data-conversation-state] #evidence-image{animation:none}
#evidence-image-button:has([data-conversation-active=true]){cursor:pointer}
.conversation-reveal-layer .chat-character{opacity:0}
.conversation-reveal-layer .chat-character.is-typed{opacity:1}
.conversation-reveal-layer .chat-character.is-cursor{position:relative;opacity:1;color:transparent!important}
.conversation-reveal-layer .chat-character.is-cursor::before{content:"";position:absolute;left:0;top:.03em;width:2.5px;height:1em;background:var(--chat-color,#111111);animation:conversation-caret .7s steps(1) infinite}
#conversation-stage[data-conversation-state=paused] .chat-character.is-cursor::before{animation-play-state:paused}
.conversation-reveal-layer [data-chat-dots] circle{animation:conversation-dot 1s ease-in-out infinite}
.conversation-reveal-layer [data-chat-dots] circle:nth-child(2){animation-delay:.15s}
.conversation-reveal-layer [data-chat-dots] circle:nth-child(3){animation-delay:.3s}
#conversation-stage[data-conversation-state=paused] [data-chat-dots] circle{animation-play-state:paused}
.motion-paused .conversation-reveal-layer{display:none}
@keyframes conversation-caret{0%,70%{opacity:.9}71%,100%{opacity:0}}
@keyframes conversation-dot{0%,70%,100%{opacity:.25}35%{opacity:1}}
.figure-notes{max-width:var(--text-width);margin:18px auto 0;font-size:16px}.figure-notes p{padding:18px 20px;color:var(--muted);line-height:1.8}
.weak-figure{margin-top:30px}.discussion{margin-top:35px;padding-top:24px;border-top:1px solid var(--line)}.discussion h3{font-size:var(--subsection-title-size)}.discussion p{font-size:18px}
.resources{padding-bottom:48px}.paper-bottom{margin-top:20px;font-size:18px}.citation pre{padding:20px;background:var(--soft);overflow-x:auto;font:15px/1.85 Consolas,'Courier New',monospace;color:#333333;margin-top:0}.copy-button{font-size:15px;border:1px solid #cccccc;border-radius:4px;padding:6px 14px}.copy-button:hover{background:var(--soft)}.citation .copy-button{margin-left:20px}.citation .caption{margin:15px 20px 22px}
.site-footer{border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;padding:23px 0 34px;font-size:15px;color:var(--muted)}.site-footer button{font-size:15px;padding:0}
.toast{position:fixed;bottom:25px;left:50%;transform:translate(-50%,10px);z-index:100;background:#111111;color:white;border-radius:5px;padding:11px 22px;font-size:16px;opacity:0;pointer-events:none;transition:.2s;max-width:90vw}.toast.show{opacity:1;transform:translate(-50%,0)}
dialog{width:min(1400px,95vw);height:90vh;max-width:95vw;max-height:90vh;padding:0;border:1px solid var(--line);border-radius:7px;background:white;color:var(--body);overflow:hidden;box-shadow:0 20px 80px #00000030}
dialog::backdrop{background:#00000099;backdrop-filter:blur(5px)}dialog[open]{display:flex;flex-direction:column}.dialog-toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:15px 22px;border-bottom:1px solid var(--line);flex-shrink:0}.dialog-toolbar h2{font-size:19px;font-weight:500;margin:0}.dialog-tools{display:flex;align-items:center;gap:8px}.dialog-tools button,.dialog-tools a{border:1px solid var(--line);border-radius:4px;width:34px;height:34px;display:grid;place-items:center;font-size:22px;line-height:1}.dialog-tools #close-dialog{margin-left:9px;background:var(--soft)}.dialog-tools>span{font-size:15px;min-width:46px;text-align:center}
.dialog-scroll{flex:1;min-height:0;overflow:auto;padding:24px}.dialog-scroll img{width:100%;max-width:none;height:auto;margin:auto}.dialog-scroll.is-fit{display:flex;align-items:center;justify-content:center}.dialog-scroll.is-fit img{width:auto;max-width:100%;max-height:100%;object-fit:contain}#dialog-caption{font-size:16px;line-height:1.65;padding:15px 22px;border-top:1px solid var(--line);max-height:150px;overflow:auto;flex-shrink:0}
main{transition:opacity .15s ease}.is-switching main{opacity:.1}.motion-paused{scroll-behavior:auto}.motion-paused *, .motion-paused *::before,.motion-paused *::after{animation:none!important;transition:none!important}
@keyframes figure-in{from{opacity:.35;transform:translateY(3px)}to{opacity:1;transform:translateY(0)}}
@media(min-width:1500px){.paper-header{padding-top:76px}.section{padding-top:82px}}
@media(max-width:800px){:root{--title-size:38px;--section-title-size:32px;--subsection-title-size:23px}.prose,.wide{width:calc(100% - 48px)}.paper-header{padding-top:48px}.summary-table td{font-size:24px}.summary-table th,.summary-table td{padding-inline:13px}.summary-table th:first-child{padding-left:14px}.bar-row{grid-template-columns:155px 1fr 60px;gap:15px}.bar-axis{padding-left:170px;padding-right:75px}}
@media(max-width:600px){
  :root{--title-size:34px;--section-title-size:28px;--subsection-title-size:22px}html{scroll-padding-top:90px}body{font-size:17px;line-height:1.85}.prose,.wide{width:calc(100% - 40px)}
  .site-header{height:64px}.header-inner{padding-inline:20px;gap:12px}nav{gap:12px}nav a{font-size:14px}.language-switch button{font-size:13px;padding:5px 6px}.language-switch{padding:2px;gap:0}
  .paper-header{padding-block:39px 39px}h1{line-height:1.26}h1 br{display:none}.paper-actions{font-size:15px;gap:23px;margin-top:25px}.primary-link{padding:9px 16px;gap:10px}
  .paper-meta{margin-top:20px;gap:6px}.paper-authors{font-size:19px}.paper-venue{font-size:16px}
  h2{margin-bottom:20px}.section{padding-top:53px}.paper-figure{margin-top:24px}figcaption,.caption{font-size:15px;line-height:1.8}figcaption{margin-top:15px}p+p{margin-top:18px}
  .hero-overview{margin-top:0;margin-bottom:44px}.method-highlights{font-size:17px;margin-top:20px}
  .problem-example{margin:22px 0;padding:20px 0}.problem-comparison{grid-template-columns:1fr;gap:17px}.problem-comparison>div+div{padding-left:0;border-left:0}.problem-comparison p{font-size:16px}
  .method-steps{margin-top:23px}.method-steps li{grid-template-columns:1fr;gap:5px;padding-block:14px;padding-left:36px}.method-steps li::before{top:18px;width:23px;height:23px;font-size:14px}.method-steps li strong{font-size:17px}.method-steps li p{font-size:16px}
  .disclosure{font-size:16px;margin-top:20px}.disclosure-body p{font-size:16px}.disclosure>summary{padding:15px 13px;gap:12px}.disclosure-label,.exact-data .disclosure-label{font-size:16px;line-height:1.65}.disclosure-toggle{font-size:14px;padding:4px 7px;gap:4px}.disclosure-toggle svg{width:15px;height:15px}.disclosure-body,.comparison-body{padding:18px 13px}.exact-data>.table-scroll{padding:0 8px}.exact-data .caption{margin:15px 13px}
  .results-block{margin-top:24px}.summary-table{table-layout:fixed}.summary-table caption{font-size:16px;padding-bottom:14px}.summary-table th{font-size:15px}.summary-table td{font-size:22px}.summary-table th,.summary-table td{padding:16px 4px;white-space:normal}.summary-table th:first-child{width:31%;padding-left:6px}.column-description{font-size:14px}.result-takeaway{font-size:16px;margin-top:20px}
  .chart-controls{flex-wrap:wrap;gap:18px;margin-bottom:24px}.task-tabs{gap:16px;flex-wrap:wrap}.task-tabs button{font-size:15px}.model-select{width:100%;justify-content:flex-end;font-size:15px}.model-select select{font-size:15px;padding:8px 10px}#chart-heading{font-size:17px}.bar-row{grid-template-columns:102px 1fr 52px;gap:11px}.bar-label{font-size:14px}.bar-value{font-size:15px}.bar-value small{font-size:14px;margin-left:1px}.bar-track{height:17px}.bar-axis{padding-left:113px;padding-right:63px;font-size:12px}.bar-chart{gap:16px}.chart-summary{font-size:15px}.exact-data{font-size:15px}.results-figure{margin-top:29px}
  .evidence-tabs{gap:23px;margin-bottom:20px;flex-wrap:wrap}.evidence-tabs button{font-size:15px;padding-bottom:11px}.evidence-figure .figure-button{min-height:140px}#evidence-image{max-height:330px}.figure-notes{font-size:15px;margin-top:13px}.figure-notes p{padding:16px 13px}.discussion{margin-top:25px;padding-top:20px}.discussion p{font-size:16px}
  .evidence-toolbar{display:grid;grid-template-columns:1fr;gap:7px;margin-bottom:13px;border-bottom:0}.evidence-toolbar .evidence-tabs{border-bottom:1px solid var(--line)}.conversation-skip{justify-self:end;font-size:14px;padding:0;line-height:1.6}.conversation-skip svg{width:15px;height:15px}
  .resources{padding-bottom:36px}.paper-bottom{font-size:16px}.citation pre{font-size:14px;padding:16px}.site-footer{font-size:15px;padding-block:22px 30px}.site-footer button{font-size:15px}
  .dialog-toolbar{padding:13px;gap:14px;flex-wrap:wrap}.dialog-toolbar h2{font-size:17px}.dialog-tools{margin-left:auto}.dialog-tools button,.dialog-tools a{width:32px;height:32px}.dialog-scroll{padding:12px}#dialog-caption{font-size:15px;padding:13px;max-height:190px}
}
@media(max-width:370px){:root{--title-size:32px}nav{gap:8px}nav a{font-size:13px}.header-inner{padding-inline:16px;gap:10px}.prose,.wide{width:calc(100% - 32px)}.bar-row{grid-template-columns:99px 1fr 48px;gap:8px}.bar-axis{padding-left:107px;padding-right:56px}.evidence-tabs{gap:20px}.paper-actions{gap:19px}}
@media(max-width:340px){.header-inner{gap:8px}nav{gap:6px}nav a{font-size:12px}.language-switch button{padding-inline:5px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}

/* Review revision: a single English reading flow. */
.header-inner{justify-content:center;max-width:1320px}nav{gap:34px}nav a{white-space:nowrap}
.paper-header.wide{max-width:1320px;width:calc(100% - 64px)}
html[lang=en] h1{max-width:none;text-wrap:initial}
.paper-meta>p:first-child{font-size:22px;color:var(--ink)}
.overview-demo-link{display:flex;gap:16px;align-items:center;justify-content:center;width:fit-content;margin:22px auto 0;padding:8px 18px;border:1px solid #cccccc;border-radius:6px;color:var(--accent);font-size:16px;background:#fafafa;transition:background .2s}.overview-demo-link:hover{background:#eeeeee}
.case-question{padding:18px 20px;background:#f7f7f7;border-left:3px solid #333333;margin-bottom:25px}.case-label{font-size:14px;color:var(--accent);font-weight:600}.case-question p{font-size:19px;font-weight:500;line-height:1.65;margin-top:4px;color:var(--ink)}
.case-answer{margin:22px 0 12px;padding:20px;background:#f7f7f7;border:1px solid #dddddd;border-radius:7px}.case-answer p{font-size:16px;line-height:1.85;margin-top:12px}.case-answer strong{font-size:20px;color:var(--accent)}
.problem-comparison .case-observation{font-size:15px;color:var(--muted)}
.case-trajectory{list-style:none;counter-reset:trajectory;padding:0;margin:20px 0 0}.case-trajectory li{counter-increment:trajectory;position:relative;font-size:16px;line-height:1.7;margin:0 0 12px;padding:10px 12px 10px 40px;border-bottom:1px solid var(--line)}.case-trajectory li::before{content:counter(trajectory);position:absolute;left:11px;top:12px;color:#666666;font-size:14px}.case-trajectory li span{display:block;font-weight:600;font-size:15px;margin-bottom:3px;color:var(--ink)}.case-trajectory li strong{display:block;font-size:15px;margin-top:6px}.case-trajectory .restricted-step{background:#f5f5f5;border:1px solid #dddddd;border-radius:7px}.case-trajectory .restricted-step span{color:#333333}
.case-source{font-size:15px;line-height:1.8;color:var(--muted);margin-top:24px!important}.case-source a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.theory-content{margin-top:42px}.guarantee-list{padding-left:24px;margin:24px 0}.guarantee-list li{padding-left:8px;margin-bottom:17px;font-size:18px;line-height:1.85}.optimization{margin-top:44px;scroll-margin-top:104px}
.optimization>h3{margin-bottom:26px}
.optimization-layout{display:grid;grid-template-columns:minmax(0,1.06fr) minmax(0,1fr);align-items:center;gap:44px}
.optimization-figure{min-width:0;margin:0}
.optimization-figure .figure-button{border-radius:10px;overflow:hidden}
.optimization-figure img{width:100%;height:auto}
.optimization-explanation{min-width:0}
.optimization-explanation>p{font-size:18px;line-height:1.8;margin:0}
.optimization-steps{list-style:none;counter-reset:optimization;margin:26px 0 0;padding:0}
.optimization-steps li{counter-increment:optimization;display:grid;grid-template-columns:30px 1fr;gap:14px;padding:19px 0;border-top:1px solid var(--line)}
.optimization-steps li:last-child{padding-bottom:0}
.optimization-steps li:before{content:"0" counter(optimization);font-size:13px;line-height:28px;color:#777}
.optimization-steps h4{margin:0 0 6px;font-size:20px;line-height:1.4;font-weight:600;letter-spacing:-.015em;color:var(--ink)}
.optimization-steps p{font-size:17px;line-height:1.75;margin:0;color:#555}
@media(max-width:900px){.optimization-layout{gap:28px;grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.optimization-explanation>p{font-size:17px}.optimization-steps h4{font-size:19px}.optimization-steps p{font-size:16px}}
@media(max-width:760px){.optimization-layout{grid-template-columns:1fr;gap:26px}.optimization-figure{width:100%;max-width:510px;margin-inline:auto}.optimization-explanation>p{font-size:17px}.optimization-steps{margin-top:22px}}
@media(max-width:600px){.optimization{margin-top:36px}.optimization>h3{margin-bottom:20px}.optimization-layout{gap:22px}.optimization-explanation>p{font-size:16px;line-height:1.8}.optimization-steps li{grid-template-columns:24px 1fr;gap:12px;padding-block:17px}}

.comparison>.comparison-body{padding:22px 0 0}.comparison{margin-top:30px}.comparison .chart-controls{margin-top:0}.results-block>.result-takeaway{margin-top:28px;padding-top:22px;border-top:1px solid var(--line)}.experiment-subsection{padding-top:64px}.weak-figure .figure-button{max-width:480px;margin-inline:auto}.weak-figure figcaption{text-align:left}.results-figure{margin-top:40px}
.citation{margin-top:26px}.citation-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;gap:20px}.citation-header h3{margin:0}.citation .copy-button{margin:0}.citation pre{border:1px solid var(--line);border-radius:6px;white-space:pre-wrap;overflow-wrap:anywhere;margin:0;padding:24px;font-size:15px}
@media(max-width:800px){nav{gap:20px}.paper-header.wide{width:calc(100% - 48px)}.paper-header h1 br{display:none}.case-question p{font-size:18px}.problem-comparison{gap:22px}.problem-comparison>div+div{padding-left:22px}}
@media(max-width:600px){.header-inner{padding-inline:16px;overflow-x:auto;justify-content:flex-start}nav{gap:20px;min-width:max-content}nav a{font-size:13px}.paper-header.wide{width:calc(100% - 40px)}html[lang=en] h1{text-wrap:balance}.paper-meta>p:first-child{font-size:19px}.overview-demo-link{font-size:14px;padding:9px 13px;gap:10px}.case-question{padding:15px 16px}.case-question p{font-size:17px}.problem-comparison>div+div{padding:0;border:0}.case-answer{padding:17px}.case-source{font-size:14px}.theory-content{margin-top:30px}.guarantee-list{padding-left:21px}.guarantee-list li{font-size:16px;padding-left:4px}.experiment-subsection{padding-top:45px}.weak-figure figcaption{text-align:left}.citation pre{font-size:13px;padding:17px}.demo-source{overflow-wrap:anywhere}}
@media(max-width:600px){.site-header{height:auto;min-height:82px}.header-inner{padding:12px 16px;overflow:visible;justify-content:center}nav{min-width:0;justify-content:center;flex-wrap:wrap;gap:6px 18px}nav a{font-size:13px;line-height:1.65}}

@media(max-width:600px){.paper-actions{font-size:14px;gap:16px}.paper-actions a{white-space:nowrap}.paper-actions .primary-link{padding:9px 12px;gap:9px}.paper-actions .text-link{gap:9px}}

/* Author names and affiliations from the supplied manuscript source. */
.paper-meta .paper-authors{font-size:20px;line-height:1.8;text-wrap:balance}
.paper-author{display:inline-block;white-space:nowrap}
.paper-author sup{font-size:.65em;margin-left:2px}
.paper-meta .paper-affiliations{display:flex;flex-wrap:wrap;justify-content:center;gap:4px 18px;max-width:1000px;margin:8px auto 0;font-size:14px;line-height:1.6;color:var(--muted)}
.paper-affiliations span{display:inline-block}
.paper-meta .paper-correspondence{font-size:13px;color:var(--muted);margin:5px 0}
@media(max-width:600px){.paper-meta .paper-authors{font-size:17px;line-height:1.9}.paper-meta .paper-affiliations{font-size:12px;gap:5px 12px}}

/* Rounded paper-resource links. */
.paper-actions{flex-wrap:wrap;gap:12px;margin-top:30px}
.paper-actions .resource-button{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:11px 24px;border:1px solid #252a30;border-radius:999px;background:#252a30;color:#fff;font-size:16px;font-weight:600;line-height:1.4;text-decoration:none;transition:background .18s,border-color .18s,transform .18s}
.paper-actions .resource-button:hover{background:#3a424b;border-color:#3a424b;transform:translateY(-2px)}
.paper-actions .resource-button-primary{background:#285bbb;border-color:#285bbb}
.paper-actions .resource-button-primary:hover{background:#1e4d9f;border-color:#1e4d9f}
.paper-actions .resource-button:focus-visible{outline:3px solid #8aafea;outline-offset:4px}
.resource-button svg{width:21px;height:21px;flex:none;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
@media(max-width:600px){.paper-actions{gap:10px}.paper-actions .resource-button{font-size:14px;padding:10px 17px;min-height:44px;gap:8px}.resource-button svg{width:18px;height:18px}}
@media(prefers-reduced-motion:reduce){.paper-actions .resource-button{transition:none}.paper-actions .resource-button:hover{transform:none}}

.paper-actions .resource-button:disabled{opacity:1;cursor:default;font-family:inherit;transform:none}
.paper-actions .resource-button:disabled:hover{background:#252a30;border-color:#252a30}
.paper-actions .resource-button-primary:disabled:hover{background:#285bbb;border-color:#285bbb}

/* Quiet, custom model selector with a native-select fallback. */
.model-select{gap:12px}
#model-label{font-size:14px;color:var(--muted)}
.model-picker{position:relative;width:210px;flex-shrink:0;line-height:1.5}
.model-picker.is-enhanced select{display:none}
.model-trigger{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%;min-height:46px;padding:10px 14px;border:1px solid #dcdcdc;border-radius:8px;background:#fff;color:var(--ink);font-size:15px;font-weight:500;text-align:left;box-shadow:0 1px 2px #00000004;transition:border-color .15s,box-shadow .15s,background .15s}
.model-trigger:hover{border-color:#b5b5b5;background:#fcfcfc}
.model-trigger svg{width:18px;height:18px;flex-shrink:0;fill:none;stroke:#777;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;transition:transform .18s}
.model-trigger:focus-visible{outline:2px solid #777;outline-offset:3px}
.model-picker.is-open .model-trigger{border-color:#9b9b9b;box-shadow:0 0 0 3px #00000004}
.model-picker.is-open .model-trigger svg{transform:rotate(180deg)}
.model-options{position:absolute;top:calc(100% + 7px);right:0;z-index:30;width:100%;list-style:none;margin:0;padding:5px;border:1px solid #e1e1e1;border-radius:10px;background:#fff;box-shadow:0 12px 30px #0000000e,0 2px 6px #00000005;animation:model-options-in .13s ease-out}
.model-options[hidden]{display:none}
.model-option{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:43px;padding:10px 10px;border-radius:5px;color:#555;font-size:15px;line-height:1.5;cursor:pointer;user-select:none}
.model-option.is-active{background:#f3f3f3;color:#111}
.model-option[aria-selected=true]{color:#111;font-weight:500}
.model-option svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;visibility:hidden}
.model-option[aria-selected=true] svg{visibility:visible}
@keyframes model-options-in{from{opacity:0;transform:translateY(-3px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:600px){.model-picker{width:195px}.model-trigger{min-height:44px}.model-option{min-height:44px}}
@media(prefers-reduced-motion:reduce){.model-options{animation:none}.model-trigger,.model-trigger svg{transition:none}}

/* Compact BibTeX fields; soft wrapping keeps copied text intact. */
.citation pre{white-space:normal;font-size:14px;line-height:1.75;padding:22px 24px}
.citation pre code{display:block;font:inherit;white-space:normal}
.bibtex-field,.bibtex-brace{display:block;white-space:pre-wrap;overflow-wrap:break-word}
.bibtex-field{padding-left:12ch;text-indent:-12ch}
@media(max-width:600px){.citation pre{font-size:12px;line-height:1.75;padding:17px 15px}.bibtex-field{padding-left:2ch;text-indent:-2ch}}