:root{--paper:#eeeae1;--ink:#22231f;--muted:#6d6c64;--line:rgba(34,35,31,.16);--red:#a64f39;--blue:#456c73;--gold:#c7a250;--panel:rgba(255,255,255,.55)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:radial-gradient(circle at 8% 0,rgba(199,162,80,.18),transparent 30rem),radial-gradient(circle at 92% 12%,rgba(69,108,115,.15),transparent 30rem),var(--paper);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif}button,a{font:inherit}button{color:inherit}[hidden]{display:none!important}.topbar{position:sticky;top:0;z-index:20;border-bottom:1px solid var(--line);background:rgba(238,234,225,.9);backdrop-filter:blur(18px)}.topbar-inner,main{width:min(1180px,calc(100% - 32px));margin:0 auto}.topbar-inner{min-height:62px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{color:inherit;text-decoration:none;font-size:13px;letter-spacing:.04em}.progress{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:12px}.track{width:104px;height:4px;border-radius:99px;background:rgba(34,35,31,.12);overflow:hidden}.track span{display:block;width:0;height:100%;background:var(--red);transition:width .25s ease}.screen{display:none;min-height:calc(100vh - 62px);padding:clamp(44px,7vw,78px) 0 74px}.screen.active{display:block}.eyebrow{margin:0 0 12px;color:var(--red);font-size:12px;font-weight:750;letter-spacing:.12em;text-transform:uppercase}h1,h2,h3{font-family:"Songti SC","STSong",Georgia,serif;font-weight:500}h1{margin:0;font-size:clamp(44px,7vw,82px);line-height:1.03;letter-spacing:-.035em}h2{margin:0;font-size:clamp(32px,4.8vw,56px);line-height:1.1}h3{margin:0;font-size:26px}.lead{max-width:760px;margin:22px 0 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.check{color:white;background:var(--blue)}.reference-card{cursor:default}.reference-card .card-index{padding-right:10px}.bottom-actions{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:28px}.selection-status,.inline-message{color:var(--muted);font-size:13px}.inline-message{min-height:20px}.tie-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:34px}.tie-card{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(145px,.75fr);padding:0;border:1px solid var(--line);background:var(--panel);text-align:left;cursor:pointer}.tie-images{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));min-height:220px;background:#d9d4ca}.tie-images.one{grid-template-columns:1fr}.tie-images img{width:100%;height:220px;object-fit:contain}.tie-copy{display:flex;flex-direction:column;justify-content:center;padding:22px}.tie-copy p{margin:8px 0 0;color:var(--muted)}.confirm-intro{max-width:880px}.confirm-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;margin-top:36px}.confirm-card .image-frame{height:min(62vh,620px)}.confirm-card .card-copy{display:block;padding:16px 17px 20px;text-align:left}.work-year{color:var(--red);font-size:12px;font-weight:700;letter-spacing:.08em}.latin{color:var(--muted);font-size:13px;line-height:1.5}.result-hero{max-width:980px}.result-section{margin-top:64px;padding-top:34px;border-top:1px solid var(--line)}.section-title{max-width:830px}.evidence-strip{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px;max-width:820px;margin-top:22px}.evidence-card{background:rgba(255,255,255,.36)}.evidence-card .image-frame{height:360px}.evidence-copy{padding:14px 15px 18px}.evidence-copy p{margin:0}.evidence-copy .latin{margin-top:6px}.stage-card{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(270px,.6fr);gap:38px}.stage-scope-note,.related-intro{max-width:760px;margin:18px 0 0;color:var(--muted);line-height:1.7}.feature-list{display:grid;gap:0;margin-top:28px}.feature{display:grid;grid-template-columns:36px 1fr;gap:14px;padding:17px 0;border-top:1px solid var(--line)}.feature span{color:var(--red);font-family:Georgia,serif;font-size:24px}.feature p{margin:2px 0;color:#4f5049;line-height:1.65}.context-card{align-self:start;padding:26px;border:1px solid var(--line);background:var(--panel)}.context-card>p:last-child{margin:0;color:#4f5049;line-height:1.75}.extension-layout,.related-layout{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,.65fr);gap:28px;margin-top:22px}.extension-frame,.related-frame{min-height:560px}.extension-copy{padding:clamp(24px,4vw,42px);display:flex;flex-direction:column;justify-content:center;border:1px solid var(--line);background:var(--panel)}.extension-copy h3{margin-top:8px;font-size:clamp(28px,3.6vw,42px)}.extension-copy>p:not(.work-year):not(.latin){color:#4f5049;line-height:1.72}.extension-actions{display:flex;flex-direction:column;align-items:flex-start;gap:15px;margin-top:22px}.secondary.selected{color:#fff;border-color:var(--blue);background:var(--blue)}.source-link{color:var(--blue);text-underline-offset:3px}.finish-card{margin-top:46px;padding:28px;border:1px solid var(--line);background:rgba(255,255,255,.4)}.finish-card>div:first-child{max-width:720px}.finish-card p{line-height:1.65}.finish-actions{display:flex;gap:12px;margin-top:20px}footer{padding:28px 16px 46px;text-align:center;color:var(--muted);font-size:12px}
@media(max-width:840px){.topbar-inner,main{width:min(100% - 22px,1180px)}.art-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.art-card .image-frame{height:310px}.section-head{align-items:start;flex-direction:column}.tie-grid,.stage-card,.extension-layout,.related-layout{grid-template-columns:1fr}.extension-frame,.related-frame{min-height:0;height:60vh}.evidence-strip{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:540px){h1{font-size:13vw}.track{width:64px}.art-grid{grid-template-columns:1fr}.art-card .image-frame{height:390px}.bottom-actions,.finish-actions{align-items:stretch;flex-direction:column}.bottom-actions button,.finish-actions button{width:100%}.tie-card{grid-template-columns:1fr}.tie-images,.tie-images img{height:170px}.tie-copy{padding:16px}.confirm-grid,.evidence-strip{grid-template-columns:1fr}.confirm-card .image-frame{height:430px}.evidence-card .image-frame{height:360px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
.image-frame img{min-width:0;min-height:0}
.feature strong{display:block;margin-bottom:5px;color:var(--ink);font-size:16px}
.dimension-section{display:grid;grid-template-columns:minmax(250px,.58fr) minmax(0,1.42fr);gap:34px}.dimension-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.dimension{min-height:118px;padding:17px 18px;border:1px solid var(--line);background:rgba(255,255,255,.34)}.dimension:last-child{grid-column:1/-1}.dimension span{color:var(--red);font-size:12px;font-weight:750;letter-spacing:.04em}.dimension p{margin:12px 0 0;line-height:1.55}
.feature-section .feature-list{display:block;margin-top:24px}.feature-section .feature{display:block;padding:0;border-top:1px solid var(--line)}.feature-section .feature:last-child{border-bottom:1px solid var(--line)}.feature-section .feature summary{display:grid;grid-template-columns:42px minmax(0,1fr) 24px;gap:12px;align-items:start;padding:20px 0;list-style:none;cursor:pointer}.feature-section .feature summary::-webkit-details-marker{display:none}.feature-section .feature summary>span:first-child{color:var(--red);font-family:Georgia,serif;font-size:23px}.feature-section .feature summary::after{content:"＋";padding-top:2px;font-size:18px}.feature-section .feature[open] summary::after{content:"－"}.feature-copy strong{font-size:18px}.feature-copy small{display:block;color:var(--muted);font-size:14px;line-height:1.65}.feature-evidence{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(250px,.65fr);gap:24px;padding:2px 0 28px 54px}.feature-evidence-images{display:grid;grid-template-columns:repeat(var(--count,1),minmax(0,1fr));gap:9px}.feature-evidence-image{position:relative;display:grid;grid-template-rows:minmax(260px,440px) auto;margin:0;background:#d9d4ca;overflow:hidden}.feature-evidence-image img{width:100%;height:100%;object-fit:contain;min-width:0;min-height:0}.feature-evidence-image figcaption{padding:7px 9px;background:var(--paper);color:var(--muted);font-size:11px}.evidence-box{position:absolute;border:2px solid rgba(255,255,255,.96);box-shadow:0 0 0 9999px rgba(20,20,18,.17),0 0 0 1px rgba(0,0,0,.2);pointer-events:none}.feature-look{align-self:center;padding-right:8px}.feature-look p{line-height:1.65}.feature-look small{color:var(--muted);line-height:1.5}
@media(max-width:840px){.dimension-section,.feature-evidence{grid-template-columns:1fr}.feature-evidence{padding-left:0}.dimension-grid{grid-template-columns:1fr 1fr}.feature-evidence-image{grid-template-rows:minmax(240px,58vh) auto}}
@media(max-width:540px){.dimension-grid{grid-template-columns:1fr}.dimension:last-child{grid-column:auto}.feature-section .feature summary{grid-template-columns:34px minmax(0,1fr) 18px}.feature-evidence-images{grid-template-columns:1fr}.feature-evidence-image{grid-template-rows:minmax(300px,62vh) auto}}

/* v0.8：面向真实使用者的结果延伸与保存动作 */
.start-copy{max-width:900px}
.text-button{min-height:47px;padding:10px 6px;border:0;color:var(--muted);background:transparent;text-decoration:underline;text-underline-offset:4px;cursor:pointer}
.text-button:focus-visible,.mini-work:focus-visible{outline:3px solid var(--gold);outline-offset:3px}
.dimension-section{display:grid;grid-template-columns:minmax(210px,.5fr) minmax(0,1.5fr);gap:24px;align-items:start}
.dimension-head h2{font-size:clamp(27px,3.3vw,42px)}
.dimension-grid{grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;margin-top:0}
.dimension{min-height:0;padding:13px 14px}
.dimension:last-child{grid-column:auto}
.dimension p{margin-top:8px;font-size:14px;line-height:1.5}
.explore-panel{margin-top:24px;padding:26px;border:1px solid var(--line);background:rgba(255,255,255,.32)}
.explore-head{max-width:760px}
.explore-head h3{font-size:clamp(27px,3.2vw,40px)}
.explore-head>p:last-child{color:var(--muted);line-height:1.65}
.mini-gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:22px}
.mini-work{display:block;border:1px solid var(--line);color:inherit;background:var(--panel);text-decoration:none}
.mini-work .image-frame{height:300px}
.mini-work-copy{padding:12px 13px 15px}
.mini-work-copy strong{display:block}
.mini-work-copy small{display:block;margin-top:5px;color:var(--muted);line-height:1.45}
.finish-card{padding:30px}
.finish-card>div:first-child{max-width:760px}
.finish-card h2{font-size:clamp(28px,4vw,46px)}
.finish-actions{flex-wrap:wrap;gap:12px;margin-top:22px}
@media(max-width:840px){.dimension-section{grid-template-columns:1fr}.dimension-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.dimension:last-child{grid-column:1/-1}.mini-gallery{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:540px){.dimension-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.dimension:last-child{grid-column:1/-1}.mini-gallery{grid-template-columns:1fr}.mini-work .image-frame{height:390px}}

/* v0.8.1：手机结果页精简与阶段标题强化 */
.result-hero{padding:clamp(24px,4vw,42px);border-left:5px solid var(--red);background:rgba(255,255,255,.34)}
.result-artist{display:block}
.result-latin{display:block;margin-top:8px;color:var(--muted);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:clamp(16px,1.7vw,23px);font-weight:500;line-height:1.35;letter-spacing:.01em}
.result-period{display:block;margin-top:16px;color:var(--red);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:clamp(25px,3.3vw,42px);font-weight:700;line-height:1.28;letter-spacing:0}
.extension-copy h3{font-size:clamp(22px,2.6vw,30px);line-height:1.25}
.feature-look p{margin:0}
@media(max-width:540px){h1{font-size:12vw}.result-hero{padding:23px 20px}.result-latin{margin-top:5px;font-size:16px}.result-period{margin-top:12px;font-size:24px}}
.feature-section .section-title h2{font-size:clamp(24px,3.2vw,38px);line-height:1.2}
@media(max-width:540px){.feature-section .section-title h2{font-size:24px}}
.resample-actions{display:flex;flex-wrap:wrap;gap:10px}
@media(max-width:540px){.resample-actions{width:100%;flex-direction:column}.resample-actions button{width:100%}}

/* v0.8.2：用户视角清扫与手机首屏收紧 */
.evidence-section{margin-top:24px;padding-top:18px}
.evidence-section .eyebrow{margin-bottom:8px}
.evidence-section .evidence-strip{margin-top:0}
.stage-card{margin-top:48px}
.extension-layout,.related-layout{gap:18px}
.extension-pair{margin-top:12px}
.extension-copy{padding:clamp(20px,3vw,30px)}
.extension-copy .work-year{margin:0}
.extension-copy .latin{margin:7px 0}
.extension-copy>p:not(.work-year):not(.latin){margin:10px 0 0}
.extension-actions{margin-top:15px}
@media(max-width:540px){
  .screen[data-screen="result"]{padding-top:24px}
  .result-hero{padding:19px 17px}
  .result-artist{font-size:11vw}
  .result-period{font-size:22px;line-height:1.22}
  .evidence-section{margin-top:12px;padding-top:12px}
  .evidence-strip.single .evidence-card .image-frame{height:min(49vh,410px)}
  .evidence-copy{padding:10px 12px 12px}
  .evidence-copy .latin{margin-top:3px}
  .result-section{margin-top:42px;padding-top:24px}
  .stage-card{margin-top:34px}
  .extension-layout,.related-layout{gap:10px}
  .extension-frame,.related-frame{height:auto;min-height:0;max-height:none;padding:0}
  .extension-frame img,.related-frame img{width:auto;max-width:100%;height:auto;max-height:54vh;object-fit:contain}
  .extension-copy{padding:17px 16px 18px}
  .extension-copy h3{margin-top:4px;font-size:22px}
  .extension-actions{margin-top:12px}
}

/* 与结果图的序号一致：小号、红色、无衬线。 */
.feature-section .feature summary>span:first-child{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;font-size:18px;font-weight:700;line-height:1.5;font-variant-numeric:tabular-nums}

/* v0.8.3：选择过程返回上一步 */
.topbar-left{min-width:0;display:flex;align-items:center;gap:14px}
.back-button{min-height:38px;padding:7px 10px;border:1px solid var(--line);border-radius:3px;background:rgba(255,255,255,.28);font-size:13px;white-space:nowrap;cursor:pointer}
.back-button:focus-visible{outline:3px solid var(--gold);outline-offset:3px}
.brand{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.progress{flex:0 0 auto}
@media(max-width:540px){.topbar-inner{gap:9px}.topbar-left{gap:8px}.back-button{padding:7px 8px}.brand{font-size:12px}.progress{gap:6px}}

/* v0.11.3：特征标注只以画面为坐标，标题始终留在标注之外。 */
.feature-evidence-images{align-items:start}
.feature-evidence-image{display:block;background:transparent}
.feature-evidence-media{display:flex;align-items:center;justify-content:center;min-height:260px;max-height:440px;overflow:hidden;background:#d9d4ca}
.feature-evidence-artwork{position:relative;display:inline-block;width:fit-content;max-width:100%;line-height:0}
.feature-evidence-artwork img{display:block;width:auto;height:auto;max-width:100%;max-height:440px;object-fit:contain}
.feature-evidence-artwork .evidence-box{box-sizing:border-box;box-shadow:0 0 0 9999px rgba(20,20,18,.17),0 0 0 1px rgba(0,0,0,.2)}
@media(max-width:840px){.feature-evidence-media{min-height:240px;max-height:58vh}.feature-evidence-artwork img{max-height:58vh}}
@media(max-width:540px){.feature-evidence-media{min-height:300px;max-height:62vh}.feature-evidence-artwork img{max-height:62vh}}

/* v0.11.4：莫奈系列绘画以同一对象的双图对照呈现。 */
.extension-zoom{width:100%;padding:0;border:0;color:inherit;cursor:zoom-in}
.extension-zoom:focus-visible,.artwork-zoom-close:focus-visible{outline:3px solid var(--gold);outline-offset:3px}
.comparison-intro{margin:10px 0 0;color:var(--muted);font-size:14px;line-height:1.55}
.extension-section.is-comparison .extension-works{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:18px}
.extension-section.is-comparison .extension-layout{display:flex;flex-direction:column;gap:0;margin:0;min-width:0}
.extension-section.is-comparison .extension-frame{height:auto;min-height:0;max-height:none;aspect-ratio:1.16}
.extension-section.is-comparison .extension-frame img{width:100%;height:100%;max-height:none;object-fit:contain}
.extension-section.is-comparison .extension-copy{flex:1;justify-content:flex-start;padding:16px 17px 18px;border-top:0}
.extension-section.is-comparison .extension-copy h3{font-size:clamp(17px,2.2vw,25px);line-height:1.32}
.extension-section.is-comparison .extension-copy>p:not(.work-year):not(.latin){display:none}
.extension-section.is-comparison .extension-actions{margin-top:auto;padding-top:12px}
.comparison-footer{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:17px}
.comparison-footer p{max-width:730px;margin:0;color:#4f5049;line-height:1.65}
.comparison-footer #comparisonActions{flex:0 0 auto}
.artwork-zoom-dialog{position:fixed;max-width:min(96vw,1280px);max-height:94vh;padding:16px 16px 12px;border:1px solid var(--line);background:var(--paper);box-shadow:0 18px 70px rgba(0,0,0,.3)}
.artwork-zoom-dialog::backdrop{background:rgba(16,19,21,.8)}
.artwork-zoom-dialog img{display:block;max-width:calc(96vw - 32px);max-height:calc(94vh - 74px);width:auto;height:auto;object-fit:contain}
.artwork-zoom-dialog p{margin:8px 42px 0 0;color:var(--muted);font-size:13px}
.artwork-zoom-close{position:absolute;top:7px;right:9px;display:grid;place-items:center;width:36px;height:36px;border:0;border-radius:50%;background:rgba(238,234,225,.94);font-size:24px;cursor:pointer}
.feature.is-comparison .feature-evidence-images{grid-template-columns:repeat(2,minmax(0,1fr))}
.feature-zoom{padding:0;border:0;background:none;cursor:zoom-in}
.feature-zoom:focus-visible{outline:3px solid var(--gold);outline-offset:3px}
.feature.is-comparison .feature-evidence-media{min-height:0}
.feature.is-comparison .feature-evidence-image figcaption{font-size:11px;line-height:1.4}
@media(max-width:540px){.feature.is-comparison .feature-evidence-images{grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}.feature.is-comparison .feature-evidence-artwork img{max-height:44vh}.feature.is-comparison .feature-evidence-image figcaption{padding:6px 4px;font-size:10px}}
@media(max-width:540px){
  .extension-section.is-comparison .extension-works{gap:8px;margin-top:13px}
  .extension-section.is-comparison .extension-frame{aspect-ratio:1.12}
  .extension-section.is-comparison .extension-copy{padding:9px 9px 12px}
  .extension-section.is-comparison .extension-copy h3{font-size:15px;line-height:1.34}
  .extension-section.is-comparison .extension-copy .latin{display:block;font-size:11px;line-height:1.4}
  .extension-section.is-comparison .extension-copy .work-year{font-size:inherit}
  .extension-section.is-comparison .extension-actions{padding-top:8px}
  .extension-section.is-comparison .source-link{font-size:12px}
  .comparison-footer{display:block;margin-top:13px}
  .comparison-footer p{font-size:14px}
  .comparison-footer #comparisonActions{margin-top:13px}
}

/* v0.11.13：单幅作品左对齐；多幅作品用浅灰底组织，并将图文留在同一视觉组。 */
.evidence-section .evidence-strip{display:flex;align-items:flex-start;gap:16px;max-width:none;overflow-x:auto;scroll-snap-type:x proximity;padding-bottom:6px}
.evidence-card{flex:0 0 min(29%,290px);min-width:210px;scroll-snap-align:start;background:transparent}
.evidence-strip.single .evidence-card{flex-basis:min(100%,520px)}
.evidence-section .evidence-strip:not(.single){padding:14px;background:#d9d4ca}
.evidence-strip[data-count="2"] .evidence-card{flex:0 1 calc((100% - 16px)/2)}
.evidence-strip[data-count="3"] .evidence-card{flex:0 1 calc((100% - 32px)/3)}
.evidence-card .image-frame{display:block;height:auto;background:transparent;overflow:visible}
.evidence-card .image-frame img{display:block;width:auto;max-width:100%;height:auto;max-height:360px;object-fit:contain}
.evidence-copy{padding:8px 0 0}
.extension-section .extension-frame{display:flex;align-items:flex-start;justify-content:flex-start;min-height:0;height:auto;background:transparent}
.extension-section .extension-frame img{display:block;width:auto;max-width:100%;height:auto;max-height:560px;object-fit:contain}
.extension-section .extension-copy{justify-content:flex-start;padding:0;border:0;background:transparent}
.extension-section.is-comparison .extension-frame{aspect-ratio:auto}
.extension-section.is-comparison .extension-frame img{width:auto;max-width:100%;height:auto;max-height:430px}
.extension-section.is-comparison .extension-copy{padding:8px 0 0;border:0;background:transparent}

/* v0.11.14：年份与进度数字使用稳定的无衬线字形。 */
body{font-variant-numeric:lining-nums tabular-nums}
#relatedHeading,#relatedGalleryHeading{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-weight:650;font-size:clamp(25px,3.15vw,36px);line-height:1.35;letter-spacing:-.015em}
@media(max-width:540px){
  #relatedHeading,#relatedGalleryHeading{font-size:clamp(25px,6.8vw,31px);line-height:1.34}
  /* 在作品延伸和画面证据里保留完整构图，不再用固定高灰底把画居中。 */
  #relatedSection .related-frame,.mini-work .image-frame,.feature-evidence-media{min-height:0;height:auto;max-height:none;background:transparent;justify-content:flex-start;align-items:flex-start}
  #relatedSection .related-frame img,.mini-work .image-frame img{display:block;width:auto;max-width:100%;height:auto;max-height:56vh;object-fit:contain}
  .mini-work{border:0;background:transparent}
  .mini-work-copy{padding:9px 0 13px}
  .feature-evidence-media{overflow:hidden}
  .tie-grid{gap:24px;margin-top:24px}
  .tie-card{display:block;border:0;background:transparent}
  .tie-images{display:flex;align-items:flex-start;justify-content:flex-start;gap:8px;min-height:0;height:auto;background:transparent}
  .tie-images img{display:block;flex:0 1 auto;width:auto;max-width:calc(50% - 4px);height:auto;max-height:240px;object-fit:contain}
  .tie-images.one img{max-width:100%}
  .tie-copy{display:block;padding:10px 0 0}
  .tie-copy p{margin-top:4px}
}
@media(min-width:841px){
  .extension-section:not(.is-comparison) .extension-layout{display:flex;align-items:flex-start;gap:clamp(16px,2.2vw,28px)}
  .extension-section:not(.is-comparison) .extension-frame{flex:0 1 auto;width:fit-content;max-width:min(60%,640px)}
  .extension-section:not(.is-comparison) .extension-copy{flex:1;min-width:0}
}
@media(max-width:540px){
  .evidence-section .evidence-strip{gap:12px}
  .evidence-section .evidence-strip:not(.single){padding:10px}
  .evidence-card{flex-basis:min(72vw,300px);min-width:0}
  .evidence-strip[data-count="2"] .evidence-card,.evidence-strip[data-count="3"] .evidence-card{flex:0 0 min(72vw,300px)}
  .evidence-strip.single .evidence-card{flex-basis:100%}
  .evidence-card .image-frame img{max-height:48vh}
  .extension-section .extension-frame img{max-height:54vh}
  .extension-section .extension-copy{padding:8px 0 0}
  .extension-section.is-comparison .extension-frame img{max-height:36vh}
}

/* 正式站匿名研究记录：必须由用户主动选择是否记录。 */
.research-consent{max-width:740px;margin-top:30px;padding:20px 22px;border:1px solid var(--line);background:rgba(255,255,255,.38)}
.research-consent p{margin:0;color:#505149;font-size:14px;line-height:1.65}
.research-consent-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.research-consent-actions .primary,.research-consent-actions .secondary{margin:0;min-width:180px}
.research-consent small{display:block;margin-top:12px;color:var(--muted);font-size:12px;line-height:1.5}
.research-state{display:block;margin-top:5px;color:var(--muted);font-size:11px}
.research-feedback{margin-top:54px;padding:26px 28px;border:1px solid var(--line);background:rgba(255,255,255,.36)}
.research-feedback h2{font-size:clamp(24px,3vw,36px)}
.research-feedback-intro{margin:10px 0 0;color:var(--muted);font-size:14px;line-height:1.6}
.research-feedback form{display:grid;gap:18px;margin-top:22px}
.research-feedback fieldset{min-width:0;margin:0;padding:0;border:0}
.research-feedback legend{padding:0;color:var(--ink);font-size:16px;font-weight:650;line-height:1.5}
.feedback-options{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.feedback-options label{display:flex;align-items:center;gap:7px;min-height:38px;padding:7px 11px;border:1px solid var(--line);border-radius:3px;cursor:pointer;background:rgba(255,255,255,.44);font-size:14px}
.feedback-options label:has(input:checked){border-color:var(--blue);background:rgba(69,108,115,.12)}
.feedback-options input{accent-color:var(--blue)}
.feedback-note-label{font-size:14px;line-height:1.55}
.research-feedback textarea{display:block;width:100%;max-width:700px;margin-top:-10px;padding:11px 12px;resize:vertical;border:1px solid var(--line);border-radius:3px;background:rgba(255,255,255,.7);font:inherit;font-size:14px;line-height:1.55}
.feedback-actions{display:flex;align-items:center;flex-wrap:wrap;gap:18px}
.research-feedback .inline-message{margin:0}
@media(max-width:540px){.research-consent{padding:17px 16px}.research-consent-actions{flex-direction:column}.research-consent-actions .primary,.research-consent-actions .secondary{width:100%}.research-feedback{padding:22px 18px}.feedback-options{gap:7px}.feedback-options label{font-size:13px}}

/* v0.11.15：先完成用户自己的保存动作，再以轻量方式收集可选反馈。 */
.xiaohongshu-link{display:inline-block;margin-top:15px;color:var(--blue);font-size:13px;text-underline-offset:3px}
.xiaohongshu-link:focus-visible{outline:3px solid var(--gold);outline-offset:3px}
.research-feedback{margin-top:34px;padding:21px 24px;background:rgba(255,255,255,.24)}
.research-feedback .eyebrow{margin-bottom:0}
.research-feedback form{gap:16px;margin-top:17px}
@media(max-width:540px){
  .research-feedback{margin-top:28px;padding:19px 16px}
  .feedback-options label{flex:1 1 88px;justify-content:center}
  /* 多幅已选作品保持同一观看高度；灰底只承担多幅作品的成组关系。 */
  .evidence-section .evidence-strip:not(.single) .evidence-card .image-frame{display:flex;align-items:flex-start;justify-content:flex-start;height:min(42vh,340px)}
  .evidence-section .evidence-strip:not(.single) .evidence-card .image-frame img{width:100%;height:100%;max-height:none;object-fit:contain;object-position:left top}
  /* 同一对象的双图对照使用同一高度标尺。 */
  .extension-section.is-comparison .extension-frame{height:min(36vh,300px)}
  .extension-section.is-comparison .extension-frame img{width:100%;height:100%;max-height:none;object-fit:contain;object-position:left top}
}

/* v0.11.16：统一作品信息层级，并让文字紧跟实际画面，不再由固定高图片框制造空白。 */
.extension-copy h3{margin:0;font-size:clamp(22px,2.6vw,30px);line-height:1.3}
.extension-copy .latin{margin:6px 0 0}
.extension-copy .latin .work-year{margin:0;color:inherit;font-size:inherit;font-weight:500;letter-spacing:0}
#relatedHeading,#relatedGalleryHeading{font-size:clamp(22px,2.7vw,30px);line-height:1.35}
.mini-work-copy small{margin-top:4px}
.extension-section.is-comparison .extension-frame{display:flex;align-items:flex-start;justify-content:flex-start;height:auto;min-height:0;aspect-ratio:auto}
.extension-section.is-comparison .extension-frame img{display:block;width:auto;height:clamp(150px,40vw,430px);max-width:100%;max-height:none;object-fit:contain;object-position:left top}
@media(max-width:540px){
  .evidence-section .evidence-strip:not(.single) .evidence-card .image-frame{display:block;height:auto}
  .evidence-section .evidence-strip:not(.single) .evidence-card .image-frame img{display:block;width:auto;max-width:100%;height:auto;max-height:42vh;object-fit:contain}
  .evidence-copy{padding-top:7px}
  .extension-copy h3{font-size:21px}
  #relatedHeading,#relatedGalleryHeading{font-size:22px}
  .extension-section.is-comparison .extension-frame{height:auto}
  .extension-section.is-comparison .extension-frame img{width:auto;height:clamp(150px,40vw,180px);max-width:100%;max-height:none;object-fit:contain}
}

/* v0.11.18：已选作品按原画比例决定高度，避免横构图落在固定高容器里形成大块留白。 */
.evidence-card .image-frame,.evidence-strip.single .evidence-card .image-frame,.evidence-strip:not(.single) .evidence-card .image-frame{display:flex;align-items:flex-start;justify-content:flex-start;height:auto;min-height:0;background:transparent}
.evidence-card .image-frame img,.evidence-strip.single .evidence-card .image-frame img,.evidence-strip:not(.single) .evidence-card .image-frame img{display:block;width:auto;max-width:100%;height:auto;max-height:min(56vh,560px);object-fit:contain;object-position:left top}
@media(max-width:540px){
  .evidence-card .image-frame img,.evidence-strip.single .evidence-card .image-frame img,.evidence-strip:not(.single) .evidence-card .image-frame img{max-height:48vh}
}