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@media(max-width:1250px){.desktop-nav{display:none;position:absolute;top:100%;left:0;right:0;height:auto;background:#151c12;border-bottom:1px solid var(--border);padding:18px;gap:12px;justify-content:space-around;flex-wrap:wrap}.desktop-nav.open{display:flex}.desktop-nav>a{height:auto;padding:8px;font-size:16px}.desktop-nav a[aria-current]:after{display:none}.mobile-menu{display:block}.header-row .search-trigger{margin-left:auto}}
@media(max-width:1100px){.home-hero{grid-template-columns:1fr}.hero-copy{max-width:850px}.hero-experiment{min-height:400px}.hero-experiment canvas{height:310px}}
@media(max-width:700px){.lab-header{height:auto;min-height:130px}.header-row{height:auto;min-height:130px;flex-wrap:wrap;padding-block:12px;gap:12px}.header-row .language-switch{order:10;width:100%}.language-switch button{min-height:44px;font-size:16px}.header-row .brand-name{display:inline}.lab-brand{font-size:16px}.header-row .search-trigger{margin-left:auto}.hero-stats>span:last-child{font-size:16px}.section-heading{align-items:flex-start}.section-note{flex-basis:100%}.curiosity{flex-wrap:wrap}.curiosity>div{flex-basis:100%}.timeline-entry{flex-wrap:wrap}.timeline-entry>div{flex-basis:100%}.hero-experiment{min-height:420px}.hero-description,.card-copy p,.timeline-entry p,.page-heading p,.curiosity p,.prose{font-size:18px}.hero-actions{gap:18px}.axis-caption{margin-inline:0}.search-dialog{padding:16px}.search-top{align-items:flex-start;gap:12px}.search-top h2{font-size:20px}.search-foot{gap:12px}}
.formula-chip{font-size:18px}.formula-chip sup{font-size:16px}
.section-heading.compact h2>.i18n>[data-lang]{font-size:inherit}
@media(max-width:600px){.category-grid{grid-template-columns:1fr}}
.home-intro{max-width:650px;margin-top:24px}.home-intro-name{font-size:22px;line-height:1.6;font-weight:600;color:var(--ink);margin:0 0 16px}.home-intro .hero-description{font-size:18px;line-height:1.85}.home-intro .i18n>[data-lang="zh"]{font-size:inherit;opacity:1;margin-top:8px}
/* Page rhythm: keep related text together and leave room between separate blocks. */
:root{--space-copy:24px;--space-block:32px;--space-section:64px}
.category-grid,.featured-grid,.article-grid{gap:24px}
.category-tile{padding:24px;display:flex;flex-direction:column}
.category-top{margin-bottom:24px}.category-tile h3{margin-bottom:12px}
.category-en{margin-top:auto;padding-top:24px}
.card-copy{padding:24px}.card-category{margin-bottom:16px}
.card-copy h3{margin-bottom:18px}.card-copy p{margin-bottom:24px}
.card-tags{gap:10px;margin-bottom:24px}.card-meta{padding-top:18px;gap:12px 20px}
.section-heading{margin-bottom:28px;gap:24px}
.category-section,.featured-section,.library-section{padding-top:var(--space-section)}
.library-controls{padding-bottom:16px;margin-bottom:32px;gap:24px}
.library-footer{padding-block:28px;gap:20px}
.page-heading{padding-bottom:48px}.page-heading p{margin-top:24px}
.index-row{padding:28px 12px;gap:20px 28px}
.timeline-entry{padding-block:28px}.timeline-entry h3{margin-block:12px}
.timeline-entry p{margin-top:16px}.timeline-year{margin-bottom:64px}
.about-grid .prose p{margin-bottom:24px}.about-grid .prose h2{margin-top:48px;margin-bottom:24px}
.about-grid .prose .lime-button{margin-top:8px}.about-rss{display:inline-flex;margin:20px 0 0 24px}
.curiosity{padding:32px;gap:32px}.curiosity h2{margin-block:16px}.curiosity p{margin-bottom:8px}
.search-result{padding:20px 12px}.search-result strong{margin-block:8px}
.search-top{gap:20px}.search-foot{gap:16px}
.article-heading{padding-bottom:48px}.article-heading>p{margin-block:24px}
.article-tags{gap:12px 20px;flex-wrap:wrap}.reading-layout{padding-top:40px;row-gap:36px}
.article-toc nav{gap:6px}.article-toc nav>a{padding:12px 10px}
.i18n>[data-lang=zh]{margin-top:8px}.i18n.inline>[data-lang=zh]{margin-top:0}
html[data-language=zh] .i18n>[data-lang=zh]{margin-top:0}
@media(max-width:800px){:root{--space-section:48px}.category-grid,.featured-grid,.article-grid{gap:20px}.category-tile,.card-copy{padding:22px}.index-row{gap:16px 20px}.reading-layout{row-gap:32px}.article-toc{padding:20px}.article-toc nav{gap:8px 16px}}
@media(max-width:560px){.category-tile,.card-copy{padding:20px}.section-heading{gap:16px;margin-bottom:24px}.page-heading{padding-bottom:36px}.library-controls{gap:20px}.curiosity{padding:24px;gap:24px}.about-rss{display:flex;margin:24px 0 0}.index-row{padding:24px 8px}.index-row h3{flex-basis:100%}.article-heading{padding-bottom:32px}}
.about-grid .prose>:first-child{margin-top:0}

.category-group .section-heading h2>.category-symbol{display:inline;font-size:1em;letter-spacing:normal;margin:0}
.search-result small>.i18n{display:inline-flex;vertical-align:top}