/* 学科区沿用现有颜色与卡片，桌面分组菜单、手机保留六个主入口。 */
.sidebar{padding:24px 15px 18px}.brand{padding:0 7px 20px}.nav-list{overflow-y:auto;gap:3px;min-height:0}.nav-btn{padding:9px 14px}.nav-group-title{font-size:10px;letter-spacing:1px;color:#8ea99b;margin:18px 14px 5px}.sidebar-foot{padding-top:15px}.sidebar-foot .side-garden{display:none}.mobile-nav{display:none}.learn-progress{display:flex;align-items:center;justify-content:space-between;gap:12px;background:#e9efdf;padding:13px 18px;border-radius:13px;margin-bottom:20px}.learn-progress>span{font-size:13px}.learn-progress .btn{min-height:35px;padding:6px 14px}.subject-shortcuts{margin:26px 0}.subject-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-bottom:24px}.subject-entry{position:relative;text-align:left;border:1px solid #e2e5d9;border-radius:18px;background:#fff;display:grid;padding:23px;min-height:174px;align-content:start;transition:box-shadow .15s}.subject-entry:hover{box-shadow:0 7px 20px #244c3b0c}.subject-entry-icon{font-size:32px;line-height:1.3;margin-bottom:18px}.subject-entry strong{font-size:20px}.subject-entry small{margin-top:6px;font-size:12px}.entry-arrow{position:absolute;right:22px;top:22px;font-size:22px;color:#7e9483}.subject-entry.chinese{background:#f6ebe1}.subject-entry.pinyin{background:#f0eafa}.subject-entry.math{background:#e7efe5}.subject-entry.english{background:#e8f0f5}.subject-entry.reading{background:#f6f0dc}.subject-entry.logic{background:#eeeef4}.subject-grid.compact{grid-template-columns:repeat(6,minmax(0,1fr));gap:10px}.compact .subject-entry{padding:16px 13px;min-height:111px}.compact .subject-entry-icon{font-size:23px;margin-bottom:11px}.compact .subject-entry strong{font-size:14px}.compact .subject-entry small,.compact .entry-arrow{display:none}.learn-overview{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:20px}.learn-hint{font-size:12px;color:var(--muted);line-height:1.9;margin:10px 0 15px}.learn-actions{display:flex;flex-wrap:wrap;gap:9px;align-items:center;margin-top:13px}.learn-actions .btn{padding:8px 13px;min-height:35px;font-size:12px}.lesson-toolbar{display:flex;flex-wrap:wrap;gap:16px;align-items:end;margin-bottom:22px}.lesson-select{flex:1;max-width:430px}.lesson-select select{width:100%}.lesson-card .section-header{margin-top:22px}.character-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(145px,1fr));gap:14px}.character-card{text-align:center;border:1px solid var(--line);border-radius:15px;padding:19px 12px;background:#fdfdf9}.pinyin-label{font-size:20px;letter-spacing:2px;color:#86624b}.hanzi{font-size:62px;line-height:1.6;font-family:Kaiti,"STKaiti",serif;margin:4px auto;background:linear-gradient(90deg,transparent 49.5%,#e9e5dc 50%,transparent 50.5%),linear-gradient(0deg,transparent 49.5%,#e9e5dc 50%,transparent 50.5%);border:1px solid #e9e5dc;width:96px}.character-card p{font-size:13px;min-height:27px}.character-card .learn-actions{justify-content:center;gap:6px}.character-card .btn{font-size:11px;padding:5px 8px;min-height:30px}.prompt-list{margin:20px 0;color:#6d7c68;line-height:2}.pinyin-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(135px,1fr));gap:13px}.pinyin-card{text-align:center;border:1px solid #e5e0f0;background:#f6f3fb;border-radius:15px;padding:16px 10px;display:grid;gap:8px}.pinyin-card strong{font-size:37px;font-weight:500;color:#6c5484}.pinyin-card p{font-size:15px}.pinyin-card .btn{padding:7px 9px;min-height:33px;font-size:11px}.math-points{display:grid;gap:12px}.math-points article{display:flex;gap:12px;align-items:center;border-bottom:1px solid var(--line);padding-bottom:13px;flex-wrap:wrap}.math-points article p{flex:1;min-width:190px}.math-points .btn{font-size:11px;padding:6px 9px;min-height:31px}.point-number{width:28px;height:28px;background:#eaf0df;color:#55704c;border-radius:50%;display:grid;place-items:center;flex-shrink:0}.mode-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}.mode-card{border-radius:15px;background:#edf2e6;border:1px solid #e1e8d9;display:grid;padding:20px 13px;gap:8px;text-align:left}.mode-card>span{font-size:28px;font-weight:600;height:42px}.mode-card strong{font-size:14px}.mode-card small{font-size:11px}.mode-card.unavailable{opacity:.4}.english-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(185px,1fr));gap:14px}.word-card{border:1px solid #dce7ec;background:#f3f8fa;padding:20px;border-radius:16px;text-align:center}.word-emoji{font-size:42px}.word-card h2{font-size:23px;color:#325c73;margin:7px 0}.word-card .learn-actions{justify-content:center}.phrase-card{margin-top:22px}.phrase-card>h2{font-size:25px;margin:15px 0}.phrase-card>p{color:var(--muted);margin-bottom:15px}.phrase-card+section{margin-top:22px}.quiz-panel{margin:0 0 22px;border:2px solid #b4c998;padding:26px}.quiz-progress{height:5px;border-radius:20px;background:#eaf0e1;margin-bottom:24px;overflow:hidden}.quiz-progress i{height:100%;display:block;background:#6f9056}.quiz-visual{white-space:pre-wrap;text-align:center;font-size:33px;line-height:1.7;overflow-wrap:anywhere;margin:18px 0}.quiz-prompt{font-size:26px;line-height:1.6;margin:22px 0}.quiz-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px;margin-top:23px}.quiz-option{padding:19px;border:1px solid #dae4d0;border-radius:13px;background:#f6f9f0;font-size:25px;font-weight:600}.quiz-option:hover{border-color:var(--green);background:#e8f0db}.quiz-result{text-align:center;display:grid;gap:10px}.quiz-result>span{font-size:45px}.quiz-result strong{font-size:23px}.quiz-result+.learn-actions{justify-content:center}.quiz-explanations{margin-top:20px}.quiz-explanations summary{cursor:pointer;color:var(--green)}.quiz-explanation{padding:17px 12px;border-top:1px solid var(--line);margin-top:10px;line-height:1.9}.quiz-explanation.incorrect{background:#fcf4e8}.mini-visual{white-space:pre-wrap}.learn-row{display:flex;gap:15px;align-items:center;padding:17px 0;border-bottom:1px solid var(--line)}.learn-row:last-child{border:0}.learn-row>div:first-of-type{flex:1;min-width:0}.learn-row small{display:block;margin-top:4px}.learn-row p{font-size:12px;margin-top:7px;white-space:pre-wrap;overflow-wrap:anywhere}.learn-history{margin-top:22px}.learn-records{margin-top:25px}.learn-record-stats{display:flex;gap:14px;flex-wrap:wrap}.learn-record-stats>span{background:#f0f3e8;padding:8px 13px;border-radius:9px}.book-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-bottom:24px}.book-card{display:flex;gap:20px;padding:20px}.book-cover{width:100px;min-height:160px;border-radius:4px 9px 9px 4px;background:#8d7254;color:#fff;box-shadow:inset 6px 0 #0002;display:flex;flex-direction:column;padding:16px 14px;flex-shrink:0}.book-cover span{font-size:23px}.book-cover strong{font-size:17px;line-height:1.5;margin:12px 0}.book-cover small{font-size:10px;color:#fff9;margin-top:auto}.cover-1{background:#5b7d74}.cover-2{background:#9b6659}.cover-3{background:#727d9c}.book-info{min-width:0}.book-info h3{margin:8px 0}.book-info p{font-size:12px;color:var(--muted)}.book-info .btn{font-size:11px;padding:6px 10px;min-height:31px}.reading-summary{display:flex;gap:20px;align-items:center;margin-bottom:22px;padding:15px 20px;background:#f1e8c9;border-radius:13px}.reading-summary strong{font-size:19px}.reading-summary span{font-size:13px}.logic-intro{text-align:center;padding:35px}.logic-art{font-size:64px;margin-bottom:22px}.logic-art span{display:block;color:#bc9750;font-size:35px;letter-spacing:14px}.logic-intro h2{font-size:24px}.logic-intro p{margin:15px auto 24px;max-width:500px;color:var(--muted)}.farm-land{padding:27px;background:#e9efdb;border:1px solid #dde6c9;border-radius:23px;margin-bottom:24px}.farm-heading{display:flex;justify-content:space-between;gap:15px;align-items:center;margin-bottom:25px}.farm-heading p{font-size:12px;color:#6b7f58;margin-top:7px}.farm-heading>strong{font-size:25px;color:#896a1e}.farm-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:13px;max-width:800px;margin:auto}.farm-plot{background:#d3bc92;border:3px solid #cbb386;border-bottom:7px solid #bca171;border-radius:18px;min-height:116px;display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative}.farm-plot>span{font-size:35px;line-height:1.5;color:#9c865d}.farm-plot.planted>span{font-size:48px;filter:drop-shadow(0 5px 2px #534a2822)}.farm-plot small{color:#755c32;font-size:11px}.plant-shop{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.plant-shop article{text-align:center;padding:15px 10px;background:#f7f8f1;border-radius:16px}.plant-icon{font-size:48px}.plant-shop p{font-size:12px;color:var(--muted);margin:7px 0 14px}.plant-shop .btn{font-size:12px;min-height:34px;padding:8px 12px}.plan-date{font-size:18px;color:#79906a;flex-shrink:0}.plan-done strong{text-decoration:line-through;color:var(--muted)}.plan-row .learn-actions{margin-top:0}.progress-options{display:grid;gap:13px;max-height:55vh;overflow-y:auto;padding:16px 1px}.progress-options input{flex-shrink:0}.notes-filters{margin-bottom:22px;display:flex;align-items:center;gap:20px;flex-wrap:wrap}.notes-filters .learn-actions{margin:0;flex:1}.notes-filters .learn-hint{flex-basis:100%;margin:0}.notes-filters label{display:flex;align-items:center}.note-content{white-space:pre-wrap}.quiz-input-form{display:flex;gap:13px;align-items:end;margin-top:20px}.quiz-input-form input{font-size:26px;width:150px}.paper-list{margin-bottom:23px}.paper-card{margin-bottom:15px}.paper-meta{display:flex;gap:12px;flex-wrap:wrap;font-size:12px;color:var(--muted);margin:8px 0}.paper-note{white-space:pre-wrap;font-size:13px;margin-top:12px}.learn-primary-actions{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}.cal-day.partial{background:#f6edce}.cal-day.all-done{background:#dcebc5}.calendar-legend{display:flex;flex-wrap:wrap;gap:15px;margin-top:18px;font-size:11px;color:var(--muted)}.calendar-legend i{display:inline-block;width:9px;height:9px;border-radius:50%;background:#f6edce;margin-right:5px}.calendar-legend .full{background:#dcebc5}
@media(min-width:761px) and (max-height:850px){.nav-btn{padding:7px 13px}.nav-group-title{margin-top:10px}.brand{padding-bottom:12px}.nav-btn .icon{width:18px;height:18px}.sidebar-foot{padding-top:8px}.sidebar{padding-top:18px}}
@media(max-width:1100px){.mode-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.book-grid{grid-template-columns:1fr}.subject-grid.compact{grid-template-columns:repeat(3,minmax(0,1fr))}.subject-grid.compact .subject-entry{min-height:90px}.learn-overview{grid-template-columns:1fr}.plant-shop{gap:9px}.plant-shop article{padding:12px 4px}.book-card{max-width:none}}
@media(max-width:760px){.sidebar{display:none!important}.mobile-nav{position:fixed;display:grid;grid-template-columns:repeat(6,minmax(0,1fr));bottom:0;left:0;right:0;background:#fffef9;border-top:1px solid var(--line);z-index:10;padding:8px 3px max(8px,env(safe-area-inset-bottom));box-shadow:0 -4px 20px #28432e05}.mobile-nav button{display:flex;align-items:center;flex-direction:column;gap:4px;font-size:10px;color:#7e897d;padding:5px 0;border-radius:9px}.mobile-nav button.active{color:#315c40;background:#edf3df;font-weight:650}.mobile-nav .icon{width:19px;height:19px}.content{padding-bottom:105px}.subject-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.subject-entry{padding:18px;min-height:154px}.subject-entry strong{font-size:18px}.subject-entry-icon{font-size:30px;margin-bottom:10px}.subject-entry small{font-size:11px}.subject-grid.compact{gap:8px}.subject-grid.compact .subject-entry{padding:12px;min-height:92px}.learn-progress{padding:12px;align-items:flex-start}.learn-progress>span{font-size:12px;flex:1}.learn-progress .btn{padding:7px 10px;font-size:11px}.heading{flex-wrap:wrap}.heading h1{font-size:26px}.lesson-toolbar{gap:12px}.lesson-select{max-width:none;min-width:100%}.character-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.character-card{padding:16px 7px}.pinyin-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.math-points article p{min-width:190px}.mode-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.mode-card{padding:15px}.english-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.word-card{padding:16px 8px}.word-card h2{font-size:22px}.word-card .learn-actions{gap:6px}.word-card .btn{padding:7px;font-size:11px}.quiz-panel{padding:20px 16px}.quiz-prompt{font-size:23px}.quiz-option{padding:16px 10px;font-size:22px}.quiz-visual{font-size:25px}.book-card{padding:15px;gap:14px}.book-cover{width:88px;min-height:154px;padding:13px 12px}.book-info h3{font-size:15px}.book-info .learn-actions{gap:7px}.farm-land{padding:18px 12px}.farm-heading{padding:0 7px;align-items:flex-start}.farm-heading p{max-width:220px}.farm-heading>strong{font-size:20px;white-space:nowrap}.farm-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:9px}.farm-plot{min-height:100px;border-radius:13px}.farm-plot.planted>span{font-size:39px}.plant-shop{grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.plant-icon{font-size:44px}.plan-row{flex-wrap:wrap}.plan-row .learn-actions{width:100%;justify-content:flex-end}.learn-row{gap:10px}.learn-row .btn{font-size:11px;padding:8px 10px;min-height:34px}.learn-record-stats{gap:8px;font-size:12px}.reading-summary{gap:12px}.reading-summary strong{font-size:16px}.notes-filters{gap:14px}.notes-filters .learn-actions{flex-basis:100%}}
@media print{.mobile-nav{display:none}}

.paper-catalog{margin:18px 0 22px;padding:15px;border:1px solid var(--line);border-radius:12px;background:#f9faf5}.paper-catalog summary{cursor:pointer;color:var(--green);font-weight:600}.paper-catalog .learn-row{padding:12px 0}.paper-catalog .learn-row strong{font-size:13px}

/* 平板保留菜单文字，避免多个学科只剩相同图标。 */
@media(min-width:761px) and (max-width:1100px){.app-shell{grid-template-columns:190px minmax(0,1fr)}.sidebar{width:190px}.nav-btn span,.brand strong,.brand small,.nav-group-title{display:block}.brand{padding-left:0;gap:8px}.brand strong{font-size:17px}.brand small{font-size:8px}.nav-btn{justify-content:flex-start}.main{grid-column:2}.content{padding:25px 22px}.topbar{padding:0 22px}.brand-mark{width:35px;height:35px}.nav-title{display:none}}
.learn-actions .btn,.learn-row .btn,.small-btn{font-size:13px}.paper-meta,.learn-row small,.book-info p,.character-card p{font-size:13px}.paper-more{grid-column:1/-1;border-top:1px solid var(--line);padding-top:14px}.paper-more summary{cursor:pointer;color:var(--muted);margin-bottom:14px}.paper-more .form-grid{margin-top:14px}.book-info details{font-size:13px;margin:8px 0}.book-info details p{margin-top:10px}.progress-options{font-size:14px}.card>details>summary{font-size:14px}.paper-history{margin-top:22px}.paper-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.paper-card-head h3{flex:1}.paper-history .paper-card{border-bottom:1px solid var(--line);padding:12px 0 18px}.paper-history .paper-card:last-child{border:0}.learn-primary-actions .btn{font-size:14px}

.note-card .note-content{min-height:0;font-size:16px;margin-bottom:20px}.note-card{min-height:0}.task-details{margin-top:7px;font-size:12px;color:var(--muted)}.task-details summary{cursor:pointer}.hero-info h2{margin-bottom:22px}.paper-card .learn-row small{font-size:14px}.paper-list .paper-card{padding-top:18px;border-top:1px solid var(--line)}.quiz-options:has(.quiz-input-form){display:block}.quiz-input-form{flex-wrap:wrap}