:root{color-scheme:light;--paper:#f8f5ed;--ink:#173d32;--muted:#59665b;--line:#d9dfd1;--surface:#fffdf7;--accent:#315d45;--gap:24px}
*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--paper);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.65}a{color:inherit;text-underline-offset:4px}button,input{font:inherit}button{cursor:pointer}button,a,input{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #8b702d;outline-offset:4px}::selection{color:#fffdf7;background:var(--accent)}[hidden]{display:none!important}.skip-link{position:absolute;left:20px;top:-100px;z-index:30;padding:12px;background:var(--ink);color:white}.skip-link:focus{top:12px}.world-header{display:flex;align-items:center;gap:40px;min-height:76px;padding:14px max(24px,calc((100vw - 1280px)/2));border-bottom:1px solid var(--line);background:var(--surface)}.world-brand{display:flex;align-items:center;gap:9px;text-decoration:none;font-size:18px;font-weight:700;white-space:nowrap}.world-brand img{border-radius:8px}.world-brand span{font-weight:500;color:var(--muted)}.world-header nav{display:flex;gap:28px}.world-header nav a{display:flex;align-items:center;min-height:44px;text-decoration:none;font-size:14px;color:var(--muted)}.world-header nav a[aria-current]{color:var(--ink);font-weight:700;box-shadow:inset 0 -2px var(--accent)}.back-link{margin-left:auto;font-size:14px;white-space:nowrap}main{max-width:1280px;margin:auto;padding:0 28px}.world-intro{display:flex;align-items:end;justify-content:space-between;gap:24px;padding:28px 0 24px}.world-intro h1{margin:0;font:600 clamp(36px,3.8vw,48px)/1.2 Georgia,"Songti SC",serif;letter-spacing:-.02em}.world-invitation{font:500 23px/1.5 Georgia,"Songti SC",serif;margin:14px 0 8px}.world-description{margin:12px 0 0;color:var(--muted);font-size:15px;line-height:1.85}.world-description strong{color:var(--ink);font-weight:650}.world-learner{display:flex;flex-direction:column;align-items:end;gap:3px;font-size:13px;max-width:260px;text-align:right;color:var(--muted)}.world-learner a,.world-learner button{min-height:32px}.world-learner button{color:var(--ink);border:0;background:none;text-decoration:underline;text-underline-offset:4px}.world-controls{position:sticky;top:0;z-index:5;background:var(--paper);padding:18px 0 12px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:28px}.world-filter-row{display:flex;align-items:end;justify-content:space-between;gap:24px}.city-filters{display:flex;flex-wrap:wrap;gap:7px}.city-filters button{display:flex;align-items:center;gap:6px;min-height:42px;padding:7px 13px;border:1px solid transparent;border-radius:7px;background:transparent;color:var(--muted);white-space:nowrap}.city-filters button span{font-size:12px;font-variant-numeric:tabular-nums}.city-filters button:hover{background:#e9ede2;color:var(--ink)}.city-filters button[aria-pressed=true]{background:var(--ink);color:var(--surface);border-color:var(--ink)}.world-search{display:grid;gap:4px;font-size:12px;color:var(--muted);flex:0 1 252px}.world-search input{min-height:42px;width:100%;min-width:0;border:1px solid #c7cec1;border-radius:7px;background:var(--surface);color:var(--ink);padding:8px 12px;font-size:14px;caret-color:var(--accent)}.world-search input::placeholder{color:#637060}.world-result-row{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:8px;font-size:13px;color:var(--muted);min-height:28px}.world-result-row p{margin:0;font-variant-numeric:tabular-nums}.world-result-row button{border:0;background:none;color:var(--ink);padding:4px 2px;text-decoration:underline;text-underline-offset:4px}.world-gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap);align-items:start;outline:none}.world-gallery.is-masonry{grid-auto-rows:8px;row-gap:20px;align-items:stretch}.world-card{min-width:0;align-self:start;margin:0}.world-card-link{display:block;text-decoration:none;background:var(--surface);border-radius:10px;overflow:hidden;border:1px solid var(--line);transition:border-color .18s,box-shadow .18s}.world-card-link:hover{border-color:#839b84;box-shadow:0 8px 22px #243f3010}.world-art{position:relative;aspect-ratio:var(--art-ratio,3/2);max-height:360px;background:#e3e8d9;overflow:hidden}.world-art>img{display:block;width:100%;height:100%;object-fit:cover;transition:filter .2s}.world-art>img[src$=".svg"]{object-fit:contain}.world-card-link:hover .world-art>img{filter:brightness(1.04)}.world-art[data-image-error]:before{content:"场景预览暂未载入";position:absolute;inset:0;display:grid;place-items:center;font-size:14px;color:var(--muted)}.world-city{position:absolute;bottom:12px;left:12px;display:block;padding:4px 10px;background:var(--surface);color:var(--ink);font-size:12px;font-weight:650;border-radius:4px}.world-card-copy{padding:19px 22px 18px}.world-card h2{font:600 22px/1.45 Georgia,"Songti SC",serif;margin:0 0 10px;text-wrap:pretty}.world-card p{font-size:14px;line-height:1.75;color:var(--muted);margin:0 0 22px;text-wrap:pretty}.world-card p[lang=en]{font-size:14px}.world-card-action{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:14px;font-weight:650;color:var(--accent)}.world-card-action svg{width:22px;height:22px;flex:none}.empty-state{text-align:center;padding:65px 16px 90px}.empty-state h2{font:600 28px Georgia,"Songti SC",serif;margin:0 0 12px}.empty-state p{color:var(--muted)}.empty-state button{border:1px solid var(--ink);border-radius:6px;padding:10px 20px;min-height:44px;background:var(--ink);color:white}.world-footnote{font-size:14px;color:var(--muted);border-top:1px solid var(--line);padding:24px 0 36px;margin:42px 0 0}.noscript{padding:18px;border:1px solid var(--line)}#launch-status{background:#ebe8d9;border-radius:6px;padding:12px 16px;margin-bottom:20px}
@media(max-width:1080px){.world-filter-row{align-items:start;flex-direction:column;gap:10px}.world-search{width:100%;flex-basis:auto;max-width:440px}.world-gallery{grid-template-columns:repeat(2,minmax(0,1fr))}.world-controls{padding-top:12px}.world-intro{padding-top:32px}}
@media(max-width:600px){main{padding:0 18px}.world-header{padding:12px 18px;gap:8px;flex-wrap:wrap}.world-header nav{order:3;width:100%;gap:25px}.world-header nav a{min-height:36px}.world-brand{font-size:16px}.world-brand img{width:30px;height:30px}.world-intro{display:block;padding:27px 0 22px}.world-intro h1{font-size:36px}.world-invitation{font-size:21px;margin-top:12px}.world-description{font-size:14px}.world-learner{max-width:none;text-align:left;align-items:center;flex-direction:row;justify-content:space-between;margin-top:15px;gap:12px;font-size:12px}.world-controls{margin-bottom:20px}.city-filters{gap:4px;flex-wrap:nowrap;overflow-x:auto;max-width:100%;padding:4px 2px 7px;scrollbar-width:thin;scrollbar-color:#a8b7a0 transparent}.city-filters button{padding:7px 12px;min-height:42px}.world-filter-row{gap:6px}.world-search{gap:2px}.world-result-row{margin-top:6px}.world-gallery{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.world-gallery.is-masonry{grid-auto-rows:8px;row-gap:20px}.world-art{max-height:none}.world-card-copy{padding:12px}.world-card h2{font-size:18px;line-height:1.45;margin-bottom:12px}.world-card p{display:none}.world-card-action{font-size:13px;min-height:28px}.world-card-action svg{width:18px;height:18px}.world-city{font-size:11px;padding:2px 6px;left:7px;bottom:7px}.world-card-link{border-radius:8px}.world-footnote{margin-top:28px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

@media(max-width:350px){.world-gallery{grid-template-columns:1fr}.world-gallery.is-masonry{grid-auto-rows:auto}.world-card{grid-row-end:auto!important}.world-card p{display:block;font-size:14px}.world-card h2{font-size:22px}}