@font-face{font-family:Itim;src:url('assets/fonts/Itim-Regular.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:MindmapHand;src:url('assets/fonts/XiaolaiSC-Regular.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}
:root{--paper:#fff;--canvas:#fafbfc;--ink:#303238;--muted:#646b74;--line:#e7e8eb;--quiet:#f5f6f8;--yellow:#f7e7a1;--yellow-hover:#f2dc85;--yellow-tint:#fff9df;--yellow-edge:#d5bd67;--radius:12px;--font-body:Itim,MindmapHand,'Microsoft YaHei','PingFang SC',sans-serif;--font-heading:Itim,MindmapHand,'Microsoft YaHei','PingFang SC',sans-serif;color-scheme:light;font-synthesis:none}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-body);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased}
button,input,select{font:inherit;color:inherit}
button,a,input,select,summary{-webkit-tap-highlight-color:transparent}
button{cursor:pointer}
button:disabled{cursor:default;opacity:.45}
button{border:0;background:none}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
p,h1,h2,h3,h4{margin:0}
h1,h2,h3,h4,.brand-name,.topic-name{font-family:var(--font-heading);font-weight:700;font-synthesis:weight;text-wrap:balance}
h1{font-size:36px;line-height:1.25}
h2{font-size:24px;line-height:1.35}
h3{font-size:20px;line-height:1.4}
p{max-width:72ch;text-wrap:pretty}
[hidden]{display:none!important}
:focus-visible{outline:2px solid var(--ink);outline-offset:4px}
h1[tabindex='-1']:focus,h2[tabindex='-1']:focus,#main:focus{outline:none}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.icon{display:inline-block;width:22px;height:22px;flex:0 0 auto;vertical-align:middle}
.skip-link{position:fixed;z-index:100;left:16px;top:12px;padding:12px 20px;background:var(--yellow);border-radius:8px;transform:translateY(-160%)}
.skip-link:focus{transform:translateY(0)}
.app-shell{max-width:1280px;margin:0 auto;min-height:calc(100vh - 112px)}
.topbar{height:80px;display:flex;align-items:center;gap:48px;padding:0 32px;border-bottom:1px solid var(--line)}
.brand{display:inline-flex;align-items:center;gap:9px;flex-shrink:0;min-height:44px}
.brand-icon{width:42px;height:32px;object-fit:contain}
.brand-name{font-size:28px;line-height:36px;white-space:nowrap}
.topnav{display:flex;align-self:stretch;align-items:stretch;gap:32px}
.nav-link{position:relative;display:flex;align-items:center;gap:5px;white-space:nowrap;min-height:44px;color:var(--muted);font-size:18px}
.nav-link.is-active{color:var(--ink)}
.nav-link.is-active:after{content:'';position:absolute;bottom:15px;left:0;right:0;height:3px;background:var(--yellow-edge);border-radius:4px}
.nav-link:hover{color:var(--ink)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:16px}
.icon-button{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border:1px solid transparent;border-radius:50%;flex:0 0 auto}
.icon-button:hover{background:var(--quiet)}
.icon-button[aria-pressed=true]{background:var(--yellow-tint);border-color:var(--yellow-edge)}
.header-search-trigger{display:none}
.saved-count{font-family:var(--font-body);font-size:12px;min-width:18px;line-height:18px;text-align:center;border-radius:12px;background:var(--yellow-tint)}
.search-form{display:flex;align-items:center;position:relative;gap:12px}
.search-form>.icon{position:absolute;left:15px;z-index:1;pointer-events:none;width:20px;height:20px}
.search-input{min-width:0;width:100%;height:44px;padding:8px 40px;border:1px solid var(--line);border-radius:24px;background:var(--canvas);font-size:14px;outline-offset:3px}
.search-input::placeholder{color:#747982;opacity:1}
.header-search{width:250px;gap:0}
.header-search .search-button{position:absolute;right:0;width:40px;height:40px}
.header-search .search-button .icon{width:16px;height:16px}
.header-search .search-input{padding-right:40px}
.hero-search .search-input{height:50px;border-radius:10px;background:var(--paper);padding-right:12px;font-size:16px}
.hero-search .search-button{height:50px;flex-shrink:0;min-width:120px}
.primary-button,.secondary-button{display:inline-flex;justify-content:center;align-items:center;gap:8px;min-height:44px;padding:9px 18px;border:1px solid transparent;border-radius:10px;line-height:24px;white-space:nowrap}
.primary-button{background:var(--yellow);color:var(--ink)}
.primary-button:hover{background:var(--yellow-hover)}
.secondary-button{border-color:var(--line);background:var(--paper)}
.secondary-button:hover{background:var(--canvas);border-color:#c8cbd0}
.text-link{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;color:var(--muted);font-size:14px;line-height:20px}
.text-link:hover{color:var(--ink)}
.text-link .icon{width:18px;height:18px}
.text-link:disabled{opacity:.38}
.content{min-width:0;padding:36px 32px 48px}
.workspace{min-width:0}
.discovery-hero{max-width:1000px;margin:8px auto 36px;padding:0 48px}
.hero-intro{display:flex;align-items:center;justify-content:space-between;gap:32px;margin-bottom:24px}
.hero-intro h1{font-size:48px;line-height:56px}
.hero-intro h1 span{white-space:nowrap}
.hero-intro p{margin-top:8px;font-size:20px;color:var(--muted);line-height:28px}
.hero-book{width:112px;height:84px;object-fit:contain;flex:0 0 auto}
.category-entries{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-bottom:32px}
.category-entry{display:flex;align-items:center;gap:18px;min-height:92px;padding:16px 20px;border:1px solid var(--line);border-radius:var(--radius)}
.category-entry:hover{background:#fffdf4;border-color:var(--yellow-edge)}
.category-entry-copy{min-width:0;display:grid;gap:2px}
.category-entry strong{font-family:var(--font-heading);font-weight:400;font-size:20px;line-height:28px}
.category-entry small{font-size:14px;line-height:20px;color:var(--muted)}
.category-art{width:52px;height:52px;flex-shrink:0;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center}
.category-art img{width:62px;height:62px;max-width:none;object-fit:contain;flex-shrink:0}
.category-art-category-food img{width:84px;height:84px}
.category-entry-all{display:none}
.section-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}
.section-heading h2{font-size:24px;line-height:32px}
.section-heading .text-link{min-height:32px}
.topic-grid{display:grid;gap:16px;min-width:0}
.home-topic-grid{grid-template-columns:repeat(5,minmax(0,1fr))}
.topic-card{position:relative;min-width:0;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);transition:background-color .15s,border-color .15s}
.topic-card:hover{background:var(--yellow-tint);border-color:var(--yellow-edge)}
.topic-card:focus-within{outline:2px solid var(--ink);outline-offset:3px}
.topic-card-link{display:block;height:100%;padding:12px 12px 44px;border-radius:var(--radius)}
.topic-card-link:focus-visible{outline:none}
.topic-card-art{height:168px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;overflow:hidden;border-radius:8px}
.topic-card-art img{width:100%;height:100%;object-fit:contain;mix-blend-mode:multiply}
.topic-name{font-size:24px;line-height:32px}
.topic-name span[lang=en]{font-family:Itim,var(--font-heading);font-size:26px}
.topic-summary{font-size:16px;line-height:24px;margin-top:6px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.topic-card-arrow{position:absolute;right:14px;bottom:12px;display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--quiet)}
.topic-card-arrow .icon{width:16px;height:16px}
.topic-card:hover .topic-card-arrow{background:var(--yellow)}
.topic-card-favorite{position:absolute;right:5px;top:5px;width:36px;height:36px;background:rgba(255,255,255,.95);opacity:0;transition:opacity .15s}
.topic-card-favorite .icon{width:18px;height:18px}
.topic-card:hover .topic-card-favorite,.topic-card:focus-within .topic-card-favorite,.topic-card-favorite[aria-pressed=true]{opacity:1}
.topic-card-favorite:hover{background:var(--yellow-tint)}
.has-sidebar{display:grid;grid-template-columns:208px minmax(0,1fr)}
.sidebar{border-right:1px solid var(--line);padding:36px 16px 32px 24px}
.sidebar-label{font-size:14px;line-height:20px;color:var(--muted);margin-bottom:16px;padding-left:12px}
.category-nav{display:grid;gap:10px}
.category-link{display:flex;align-items:center;gap:12px;min-height:48px;padding:10px 12px;border-radius:10px;font-size:16px;color:var(--muted)}
.category-link span{min-width:0}
.category-link small{margin-left:auto;font-size:14px}
.category-link .icon{width:22px;height:22px}
.category-link:hover{background:var(--canvas)}
.category-link.is-active{background:var(--yellow-tint);color:var(--ink)}
.sidebar-note{margin:48px 12px 0;font-size:14px;line-height:24px;color:var(--muted)}
.results-heading{margin:0 0 28px}
.results-heading h1{font-size:30px;line-height:36px}
.results-description{color:var(--muted);margin-top:8px;font-size:16px}
.results-heading .hero-search{margin-top:24px;max-width:760px}
.directory-filters{display:none}
.results-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
.directory-group{margin-bottom:32px}
.directory-group>h2{font-size:20px;line-height:28px;margin-bottom:16px}
.directory-group>h2 span{font-family:var(--font-body);font-size:18px}
.directory-group .results-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.result-card .topic-card-art{height:144px}
.directory-group .topic-summary{-webkit-line-clamp:1}
.directory-group.is-single .result-card{grid-column:1/-1}
.directory-group.is-single .topic-card-link{display:grid;grid-template-columns:120px minmax(0,1fr);align-items:center;gap:20px;padding:12px 48px 12px 12px}
.directory-group.is-single .topic-card-art{height:104px;margin-bottom:0}
.directory-group.is-single .topic-card-arrow{top:50%;bottom:auto;transform:translateY(-50%)}
.empty-state{padding:72px 24px;max-width:680px;margin:0 auto;text-align:center}
.empty-state h1{font-size:30px;line-height:36px}
.empty-state p{margin:12px auto 24px;color:var(--muted)}
.empty-icon{display:flex;align-items:center;justify-content:center;width:56px;height:56px;margin:0 auto 20px;border-radius:50%;background:var(--yellow-tint)}
.empty-icon .icon{width:28px;height:28px}
.reader-header{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-top:-16px;margin-bottom:20px}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--muted);min-height:40px}
.breadcrumb>.icon{width:12px;height:12px}
.breadcrumb .text-link{font-size:14px;min-height:36px}
.reader-header-tools .text-link{font-size:14px;min-height:36px}
.reader-layout{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);grid-template-rows:auto 1fr;column-gap:36px;align-items:start}
.reader-title-row{grid-column:2;grid-row:1;display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:12px;min-width:0}
.reader-title{font-size:30px;line-height:40px}
.reader-title [lang=en]{font-size:36px}
.reader-title-row .secondary-button{min-height:36px;padding:6px 12px;font-size:14px;border-radius:9px}
.reader-title-row .secondary-button .icon{width:18px;height:18px}
.reader-visual{grid-column:1;grid-row:1 / span 2;min-width:0}
.reader-map{display:flex;align-items:center;justify-content:center;background:var(--canvas);border:1px solid var(--line);border-radius:10px;overflow:hidden}
.reader-map img{width:100%;height:auto;max-height:680px;object-fit:contain}
.map-actions{display:flex;align-items:center;justify-content:center;gap:12px;margin-top:12px;flex-wrap:wrap}
.map-actions .secondary-button{font-size:14px;padding:8px 12px}
.map-actions .icon{width:18px;height:18px}
.reader-panel{grid-column:2;grid-row:2;min-width:0}
.learning-tabs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px;border-bottom:1px solid var(--line);padding-bottom:10px;margin-bottom:20px}
.learning-tab{display:flex;align-items:center;justify-content:center;min-height:42px;padding:6px 8px;border-radius:9px;font-family:var(--font-body);font-size:16px;color:var(--muted);white-space:nowrap}
.learning-tab:hover{background:var(--canvas);color:var(--ink)}
.learning-tab.is-active{background:var(--yellow-tint);color:var(--ink)}
.map-guide{padding:20px 0}
.map-guide h2{font-size:24px;line-height:32px;margin-bottom:12px}
.map-guide p,.map-guide-list{color:var(--muted);font-size:16px;line-height:28px}
.map-guide-list{padding-left:20px;margin:24px 0}
.map-guide-list li+li{margin-top:12px}
.map-guide-actions{display:flex;align-items:center;gap:24px;margin-top:24px}
.qa-card{border:1px solid var(--line);border-radius:var(--radius);padding:16px 20px 0}
.qa-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px}
.eyebrow{font-size:14px;color:var(--muted)}
.hint-toggle{display:flex;align-items:center;gap:6px;padding:0;min-height:36px;font-size:12px;color:var(--muted)}
.hint-state{display:none}
.switch{display:block;position:relative;width:30px;height:18px;border-radius:12px;background:#dfe1e5}
.switch:after{content:'';position:absolute;width:12px;height:12px;border-radius:50%;top:3px;left:3px;background:var(--paper);transition:transform .15s}
.hint-toggle[aria-checked=true] .switch{background:var(--yellow-edge)}
.hint-toggle[aria-checked=true] .switch:after{transform:translateX(12px)}
.qa-row{display:grid;grid-template-columns:36px minmax(0,1fr) auto;align-items:start;gap:12px;padding:16px 0 20px;min-width:0}
.qa-letter{display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:var(--yellow-tint);border-radius:50%;font-family:Itim,sans-serif;font-size:24px;line-height:32px}
.answer-letter{background:var(--quiet);color:var(--muted)}
.question-text{font-family:Itim,var(--font-body);font-size:24px;line-height:32px;font-weight:400}
.answer-text{font-family:Itim,var(--font-body);font-size:20px;line-height:28px}
.translation{font-size:16px;line-height:24px;margin-top:4px;color:var(--muted)}
.answer-block{border-top:1px solid var(--line);padding-top:24px}
.inline-audio{display:grid;gap:4px;justify-items:center;padding-top:1px}
.audio-play{min-height:38px;padding:6px 10px;font-size:14px;line-height:20px;border-radius:20px;gap:5px}
.audio-play .icon{width:16px;height:16px}
.inline-audio>span{font-size:12px;line-height:16px;color:var(--muted)}
.audio-transport{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--line);padding-top:8px}
.audio-buttons{display:flex;gap:16px;align-items:center}
.audio-buttons .text-link{font-size:14px}
.audio-rate{display:flex;align-items:center;gap:6px;white-space:nowrap;font-size:14px;color:var(--muted)}
.audio-rate select{min-height:36px;padding:4px 6px;background:var(--paper);border:1px solid var(--line);border-radius:8px;font-size:14px}
.audio-status{font-size:12px;line-height:18px;color:var(--muted);padding:0 0 12px}
[data-audio][aria-pressed=true],[data-audio][aria-pressed=true]:hover,[data-audio][aria-pressed=true]:active{background:var(--yellow);color:var(--ink);border-color:var(--yellow-edge);box-shadow:inset 0 0 0 1px var(--yellow-edge);border-radius:20px}
.qa-pager{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:4px 0;border-top:1px solid var(--line)}
.question-progress{font-size:14px;color:var(--muted);white-space:nowrap}
.answer-reveal{margin:4px 0 20px 48px;font-size:16px}
.practice-note{font-size:14px;color:var(--muted);margin-top:16px}
.resource-entry{display:flex;align-items:center;justify-content:center;gap:20px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line);font-size:14px;color:var(--muted)}
.resource-library{padding-top:32px;margin-top:32px;border-top:1px solid var(--line)}
.resource-library .section-heading{align-items:start}
.resource-library .section-heading p{font-size:14px;color:var(--muted)}
.resource-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.resource-card{min-width:0;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.resource-preview{display:flex;height:200px;padding:10px;align-items:center;justify-content:center;background:var(--canvas)}
.resource-preview img{width:100%;height:100%;object-fit:contain}
.resource-caption{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px 12px;font-size:14px}
.resource-caption a{display:flex;align-items:center;justify-content:center;width:40px;height:40px}
.guide-heading{max-width:760px;margin:12px auto 32px}
.guide-heading p{font-size:18px;line-height:28px;margin-top:12px;color:var(--muted)}
.guide-list{max-width:760px;margin:0 auto;padding:0;list-style:none}
.guide-list li{display:flex;gap:20px;border-bottom:1px solid var(--line);padding:28px 0}
.guide-list h2{font-size:24px;line-height:32px;margin-bottom:8px}
.guide-list p{color:var(--muted);line-height:28px}
.step-number{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;flex-shrink:0;border-radius:50%;font-family:Itim,sans-serif;font-size:24px;background:var(--yellow-tint)}
.guide-action{max-width:760px;margin:28px auto}
.faq-list,.info-content{max-width:760px;margin:40px auto 0}
.faq-list h2{margin-bottom:16px}
.faq-list details{padding:16px 0;border-bottom:1px solid var(--line)}
.faq-list summary{cursor:pointer;font-size:18px;line-height:28px;min-height:40px}
.faq-list p{color:var(--muted);line-height:28px;margin:8px 0}
.info-content h2{font-size:24px;line-height:32px;margin:28px 0 12px}
.info-content p{color:var(--muted);line-height:28px}
.site-footer{max-width:1216px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:24px 0 32px;border-top:1px solid var(--line);font-size:14px;line-height:24px;color:var(--muted)}
.footer-links{display:flex;gap:20px;flex-wrap:wrap}
.footer-links a{padding:6px 0}
.footer-links a:hover{color:var(--ink)}
.mobile-nav{display:none}
dialog{max-width:560px;width:calc(100% - 32px);max-height:calc(100dvh - 48px);padding:24px;border:1px solid var(--line);border-radius:16px;background:var(--paper);color:var(--ink)}
dialog::backdrop{background:rgba(32,35,40,.28)}
.dialog-header{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px}
.dialog-header h2{font-size:24px;line-height:32px}
.dialog-search{display:flex;align-items:center;gap:8px;margin-bottom:20px}
.dialog-search input{width:100%;height:44px;border:1px solid var(--line);border-radius:10px;padding:8px 12px;background:var(--paper)}
.dialog-category-list .category-link{border-bottom:1px solid var(--line);border-radius:0}
.dialog-category-group{border-bottom:1px solid var(--line);padding:12px 0}
.dialog-category-group summary{display:flex;align-items:center;gap:12px;min-height:44px;cursor:pointer;list-style:none}
.dialog-category-group summary .icon:last-child{margin-left:auto;width:16px}
.dialog-topic-list{padding-left:32px}
.dialog-topic-link{display:flex;align-items:center;gap:12px;min-height:44px;color:var(--muted)}
.dialog-topic-link .icon{margin-left:auto;width:16px}
.dialog-empty{padding:20px 0;color:var(--muted)}
.help-content p{color:var(--muted);margin-bottom:20px}
.help-content li{margin-bottom:20px}
.toast{position:fixed;z-index:90;bottom:28px;left:50%;transform:translate(-50%,16px);opacity:0;pointer-events:none;max-width:calc(100% - 32px);padding:12px 20px;background:var(--ink);color:var(--paper);font-size:16px;border-radius:10px;transition:opacity .15s,transform .15s;text-align:center}
.toast.is-visible{opacity:1;transform:translate(-50%,0)}
.noscript{margin:40px;padding:24px;border:1px solid var(--line);border-radius:12px}
.media-error{padding:24px 12px;text-align:center;min-height:140px;border:1px dashed var(--line);border-radius:10px}
.media-error p{color:var(--muted);margin-bottom:12px}
.pswp{--pswp-bg:#fff;--pswp-icon-color:var(--ink);--pswp-icon-color-secondary:#fff;--pswp-icon-stroke-color:#fff}
.pswp__top-bar{background:rgba(255,255,255,.96)}
.pswp__custom-caption{position:absolute;bottom:12px;left:50%;transform:translateX(-50%);max-width:90%;padding:8px 16px;border-radius:8px;background:rgba(255,255,255,.95);font-size:14px;text-align:center;color:var(--ink)}
.pswp__button--download{display:flex;align-items:center;justify-content:center;width:auto;min-width:96px;flex:0 0 auto;padding-inline:16px;white-space:nowrap;font-family:var(--font-body);font-size:14px;line-height:20px;text-decoration:none}
@media(min-width:1450px){.app-shell{max-width:1360px}.site-footer{max-width:1296px}.topic-card-art{height:184px}}
@media(max-width:1100px){.topbar{gap:28px;padding-inline:24px}.topnav{gap:24px}.header-search{width:205px}.content{padding-inline:24px}.brand-name{font-size:22px}.discovery-hero{padding-inline:24px}.category-entry{gap:12px;padding:14px}.category-entry small{font-size:12px}.topic-card-art{height:144px}.topic-name{font-size:18px}.topic-name span[lang=en]{font-size:20px}.home-topic-grid{gap:12px}.topic-card-link{padding:10px 10px 42px}.has-sidebar{grid-template-columns:180px minmax(0,1fr)}.sidebar{padding-left:14px}.results-grid,.directory-group .results-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.reader-layout{column-gap:24px;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr)}.qa-card{padding:12px 14px 0}.qa-row{gap:8px;grid-template-columns:30px minmax(0,1fr)}.qa-letter{width:30px;height:30px;font-size:22px}.inline-audio{grid-column:2;justify-items:start;display:flex;align-items:center;gap:8px}.question-text{font-size:24px}.site-footer{margin-inline:24px}.resource-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:800px){.topbar{height:72px;gap:24px}.header-search{width:170px}.header-actions{gap:4px}.brand-name{font-size:20px}.brand-icon{width:30px;height:28px}.topnav{gap:20px}.content{padding-top:28px}.discovery-hero{padding:0;margin-top:0}.hero-intro{gap:16px}.hero-intro h1{font-size:30px;line-height:36px}.hero-book{width:92px;height:72px}.category-entry{padding:14px 10px;gap:8px;min-height:80px}.category-entry strong{font-size:18px}.category-entry small{display:none}.category-art{width:44px;height:44px}.category-art img{width:54px;height:54px}.category-art-category-food img{width:72px;height:72px}.home-topic-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.topic-card-art{height:180px}.has-sidebar{grid-template-columns:160px minmax(0,1fr)}.sidebar{padding:28px 10px}.category-link{padding:10px 8px;gap:8px}.category-link .icon{width:20px;height:20px}.sidebar-label{padding-left:8px}.results-grid,.directory-group .results-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.result-card .topic-card-art{height:152px}.reader-layout{column-gap:20px;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr)}.learning-tabs{gap:0}.learning-tab{font-size:14px;padding:6px 3px}.reader-title{font-size:24px}.reader-title [lang=en]{font-size:30px}.map-actions{gap:8px}.map-actions .secondary-button{padding:8px}.map-actions .icon{display:none}.audio-transport{flex-wrap:wrap;gap:0}.audio-rate{margin-left:auto}.resource-entry{flex-wrap:wrap;gap:4px}.site-footer{align-items:start;flex-direction:column;gap:8px}.guide-heading h1{font-size:30px;line-height:36px}}
@media(max-width:620px){html{scroll-padding-top:78px}.app-shell{min-height:calc(100dvh - 160px)}.topbar{height:64px;padding:0 20px;gap:16px}.brand{gap:6px}.brand-name{font-size:22px;line-height:28px}.brand-icon{width:30px;height:26px}.topnav,.header-search{display:none}.header-actions{gap:4px}.header-search-trigger{display:inline-flex}.icon-button{width:40px;height:40px}.header-favorite{display:inline-flex}.content{padding:28px 20px 32px}.discovery-hero{margin:0 0 24px}.hero-intro{margin-bottom:24px}.hero-intro h1{max-width:12em;font-size:30px;line-height:36px;letter-spacing:0}.hero-intro p{font-size:16px;line-height:24px;max-width:22em;margin-top:10px}.hero-book{display:none}.hero-search .search-input{height:48px;font-size:14px;padding-left:40px;border-radius:10px}.hero-search .search-button{min-width:48px;width:48px;height:48px;padding:10px;border-radius:10px}.hero-search .search-button span{display:none}.hero-search{gap:8px}.hero-search .search-button .icon{width:20px;height:20px}.category-entries{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-bottom:28px}.category-entry{min-height:68px;padding:12px 14px;gap:10px}.category-entry-all{display:flex}.category-entry strong{font-size:16px;line-height:24px}.category-entry>.icon{width:32px;height:32px;margin:4px}.category-art{width:36px;height:36px}.category-art img{width:46px;height:46px}.category-art-category-food img{width:62px;height:62px}.section-heading{margin-bottom:14px;gap:12px}.section-heading h2{font-size:22px;line-height:28px}.section-heading .text-link{font-size:12px}.home-topic-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.topic-card-link{padding:10px 10px 42px}.topic-card-art{height:156px;margin-bottom:10px}.topic-name{font-size:18px;line-height:24px}.topic-name span[lang=en]{font-size:20px}.topic-summary{font-size:14px;line-height:20px;margin-top:6px}.topic-card-favorite{width:36px;height:36px;opacity:1}.topic-card-favorite .icon{width:16px;height:16px}.topic-card-arrow{width:28px;height:28px;right:10px;bottom:10px}.has-sidebar{display:block}.sidebar{display:none}.directory-filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}.filter-link{min-height:40px;display:flex;align-items:center;justify-content:center;padding:7px 14px;border:1px solid var(--line);border-radius:20px;font-size:14px;color:var(--muted)}.filter-link.is-active{background:var(--yellow-tint);border-color:var(--yellow-edge);color:var(--ink)}.results-heading{margin-bottom:24px}.results-heading h1{font-size:30px;line-height:36px}.results-heading .hero-search{margin-top:20px}.results-description{font-size:16px;line-height:24px}.results-grid,.directory-group .results-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.result-card .topic-card-art{height:148px}.directory-group>h2{font-size:20px}.reader-header{margin-top:-12px;margin-bottom:16px;gap:8px}.breadcrumb{font-size:12px;gap:4px}.breadcrumb .text-link{font-size:12px}.reader-header-tools .text-link{width:36px;min-height:36px}.reader-header-tools .text-link span{display:none}.reader-header-tools .icon{width:18px}.reader-layout{display:flex;flex-direction:column;gap:0}.reader-title-row{width:100%;order:0;margin-bottom:18px}.reader-title{font-size:28px;line-height:36px}.reader-title [lang=en]{font-size:32px}.reader-visual{width:100%;order:1;margin-bottom:24px}.reader-map{max-width:400px;margin:0 auto}.reader-map img{max-height:440px;width:100%;object-fit:contain}.map-actions{margin-top:10px;gap:10px}.map-actions .secondary-button{padding:6px 12px;min-height:40px;font-size:14px}.map-actions .icon{display:inline-block;width:16px;height:16px}.reader-panel{width:100%;order:2}.learning-tabs{padding-bottom:12px;margin-bottom:16px;gap:4px}.learning-tab{min-height:42px;font-size:16px;padding:6px 4px}.qa-card{padding:12px 14px 0}.qa-toolbar{gap:8px;margin-bottom:4px}.eyebrow{font-size:12px}.hint-toggle{font-size:12px;gap:5px;min-height:40px}.qa-row{grid-template-columns:30px minmax(0,1fr);gap:8px;padding:16px 0}.qa-letter{width:30px;height:30px;font-size:22px}.question-text{font-size:24px;line-height:32px}.answer-text{font-size:20px;line-height:28px}.translation{font-size:16px;line-height:24px;margin-top:4px}.inline-audio{display:flex;gap:8px;grid-column:2;padding-top:4px;align-items:center;justify-items:start}.audio-play{min-height:40px;padding:8px 12px}.inline-audio>span{font-size:12px}.audio-buttons{gap:14px}.audio-transport{gap:4px;padding-top:8px}.audio-rate select{min-height:40px;font-size:14px}.question-progress{font-size:14px}.qa-pager .text-link{font-size:14px;gap:2px}.qa-pager .icon{width:14px}.audio-status{font-size:12px}.answer-reveal{margin-left:38px;max-width:calc(100% - 38px)}.map-guide{padding:8px 0}.map-guide h2{font-size:24px}.map-guide p,.map-guide-list{font-size:16px;line-height:28px}.resource-entry{margin-top:28px;padding-top:20px;text-align:center}.resource-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.resource-library .section-heading{display:block}.resource-library h2{margin-bottom:6px}.resource-preview{height:168px}.resource-caption{font-size:12px;padding:6px 8px}.guide-heading{margin-top:0;margin-bottom:20px}.guide-heading h1{font-size:30px;line-height:36px}.guide-heading p{font-size:16px;line-height:28px}.guide-list li{gap:14px;padding:22px 0}.guide-list h2{font-size:22px;line-height:28px}.guide-list p{font-size:16px;line-height:28px}.faq-list{margin-top:32px}.faq-list summary{font-size:18px}.empty-state{padding:48px 0}.empty-state h1{font-size:28px}.site-footer{padding:20px 0 100px;margin:0 20px;gap:12px;font-size:12px;line-height:20px}.footer-links{gap:20px}.footer-links a{min-height:40px;display:flex;align-items:center}.mobile-nav{position:fixed;z-index:30;left:0;bottom:0;width:100%;display:flex;align-items:center;justify-content:space-around;gap:16px;padding:8px 20px calc(8px + env(safe-area-inset-bottom));border-top:1px solid var(--line);background:rgba(255,255,255,.98)}.mobile-nav-link{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:2px;min-width:64px;min-height:48px;padding:4px 16px;border-radius:10px;color:var(--muted);font-size:12px;line-height:16px}.mobile-nav-link .icon{width:22px;height:22px}.mobile-nav-link.is-active{background:var(--yellow-tint);color:var(--ink)}.toast{bottom:88px;width:max-content;max-width:calc(100% - 32px);font-size:14px}.dialog-header h2{font-size:22px}dialog{padding:20px}.reader-header-tools{flex-shrink:0}}
@media(max-width:360px){.topbar{padding-inline:16px}.content{padding-inline:16px}.category-entry{padding:10px;gap:6px}.category-entry strong{font-size:16px}.category-art{width:32px;height:32px}.topic-card-art{height:132px}.topic-grid{gap:10px}.topic-name{font-size:16px}.topic-name span[lang=en]{font-size:18px}.topic-card-link{padding:8px 8px 42px}.audio-buttons{gap:8px}.qa-card{padding-inline:10px}.qa-pager .text-link{font-size:12px}.learning-tab{font-size:14px}.site-footer{margin-inline:16px}}
@media(hover:none){.topic-card-favorite{opacity:1}.topic-card-favorite{width:40px;height:40px}}
@media(min-width:1101px){.category-entry{min-height:100px}.category-art{width:60px;height:60px}.category-art img{width:70px;height:70px}.category-art-category-food img{width:96px;height:96px}.category-entry strong{font-size:24px;line-height:32px}.category-entry small{font-size:16px;line-height:24px}}
@media(max-width:1100px) and (min-width:621px){.directory-group .results-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:620px){.brand-name{font-size:24px}.hero-intro h1{font-size:36px;line-height:44px}.hero-intro h1 span{display:block}.category-entry strong{font-size:18px}.topic-name{font-size:20px;line-height:28px}.topic-name span[lang=en]{font-size:22px}.directory-group .topic-summary{-webkit-line-clamp:2}.directory-group.is-single .topic-card-link{grid-template-columns:100px minmax(0,1fr);gap:12px;padding-right:40px}.directory-group.is-single .topic-card-art{height:104px}body[data-step=qa] .reader-panel,body[data-step=speak] .reader-panel{order:1}body[data-step=qa] .reader-visual,body[data-step=speak] .reader-visual{order:2;margin-top:24px;margin-bottom:0}.learning-tabs{scroll-margin-top:16px}}
@media(max-width:360px){.hero-intro h1{font-size:32px;line-height:40px}.directory-group.is-single .topic-card-link{grid-template-columns:88px minmax(0,1fr);gap:8px}.topic-name{font-size:18px}.topic-name span[lang=en]{font-size:20px}}
@media(max-width:620px){.icon-button,.topic-card-favorite{width:44px;height:44px}.audio-play,.map-actions .secondary-button,.learning-tab,.filter-link,.hint-toggle,.audio-rate select{min-height:44px}.reader-header-tools .text-link{width:44px;min-height:44px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}
@media print{.topbar,.mobile-nav,.site-footer,.map-actions,.reader-header-tools,.reader-title-row button,.learning-tabs,.audio-transport,.audio-status,.inline-audio,.qa-pager,.hint-toggle,.resource-entry{display:none!important}.content{padding:0}.reader-layout{display:block}.reader-map img{max-height:none}.reader-panel{margin-top:24px}.qa-card{break-inside:avoid}.reader-title-row{display:block}.reader-map{border:0}.topic-card-favorite{display:none}}