@charset "UTF-8";
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h1,h2,h3{font-family:Georgia,'Times New Roman','Songti SC','SimSun',serif;font-weight:600;letter-spacing:0}
.rich pre,code,kbd{font-family:'SF Mono',Menlo,Consolas,'Courier New',monospace;font-size:.92em}
.rich pre{background:#1c1c1e;border:1px solid var(--line);border-radius:8px}
::selection{background:rgba(10,132,255,.35);color:#fff}
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rgba(255,214,10,.4);min-height:40px}body:has(dialog[open]){overflow:hidden}
@media(max-width:800px){main{padding:28px 18px 90px}.answer-layout{grid-template-columns:1fr}.answer-sidebar{display:none}.entry-grid{gap:12px}.entry-card{padding:18px}.answer-top>span{max-width:50%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.login-shell{gap:25px;margin-top:40px}.login-intro h1{font-size:35px}.case-grid{grid-template-columns:1fr}}
@media(max-width:560px){header{height:67px;padding:0 17px}.brand b{font-size:17px}.brand small{font-size:8px}.brand-mark{width:34px;height:34px}.header-right{gap:5px}.user-pill{font-size:12px}#shutdown{display:none}nav{position:fixed;bottom:0;left:0;right:0;height:62px;padding:0 10px env(safe-area-inset-bottom);gap:0;justify-content:space-between;z-index:80;border-top:1px solid var(--line);box-shadow:none}nav button{flex:1;font-size:12px;min-width:0}nav button.active:after{bottom:auto;top:0;left:20%;right:20%}main{padding:25px 15px 95px}h1{font-size:27px}.page-heading p{font-size:12px}.eyebrow{font-size:9px}.hero-strip{padding:16px 2px;margin:20px 0}.hero-strip strong{font-size:20px}.hero-strip span{font-size:10px}.resume-card{padding:18px;gap:15px}.resume-card h3{font-size:14px}.resume-card button{font-size:12px;padding:9px 13px;white-space:nowrap}.entry-grid{grid-template-columns:1fr;gap:10px}.entry-card{min-height:0;padding:18px;position:relative}.entry-icon{float:left;margin:0 15px 0 0;width:39px;height:39px;line-height:39px}.entry-card h3{font-size:15px}.entry-card p{font-size:12px;margin-top:3px}.entry-link{position:absolute;right:18px;top:22px;font-size:0}.entry-link:after{content:'→';font-size:18px}.panel{padding:20px;border-radius:12px}.section-title h2{font-size:18px}.section-title>span{font-size:10px}.form-grid{grid-template-columns:1fr;gap:13px}.form-grid select{width:100%;font-size:16px}.mode-picker{gap:8px}.mode-picker>label{padding:12px 10px;gap:8px}.mode-picker strong{font-size:12px}.mode-picker span{font-size:10px}.start-action{flex-direction:column;align-items:stretch;margin-top:18px}.start-action button{width:100%}.answer-top{gap:8px}.answer-top>span{font-size:11px;max-width:40%}.answer-top button{font-size:12px;padding:7px 10px}.answer-top #leave{padding:7px 0}.question-panel{padding:21px 17px}.question-number{font-size:22px;margin-right:0}.question-meta{gap:8px;margin-bottom:17px}.question-meta .text-btn{font-size:11px;white-space:nowrap}.tag{font-size:10px;padding:2px 5px}.question-body{font-size:17px;line-height:1.85;margin-bottom:20px}.choice{padding:13px 12px;gap:12px}.choice-key{width:27px;height:27px;flex-basis:27px;font-size:12px}.choice>.rich{font-size:15px}.choices{gap:10px}.question-actions{padding-top:20px;margin-top:22px;gap:8px}.question-actions button{font-size:12px;padding:10px 13px}.question-actions>div{gap:6px}.answer-hint{font-size:10px}.answer-hint>span{float:none;display:block;margin-top:6px}.analysis{padding:15px}.analysis-title{gap:7px}.analysis-title strong{font-size:14px}.analysis-title span{font-size:11px}.paper-grid{grid-template-columns:1fr;gap:12px}.paper-card{padding:20px}.paper-card>p{margin-bottom:18px}.paper-card h3{font-size:15px}.paper-year{font-size:21px}.pagination{font-size:11px;gap:8px}.pagination select{margin-right:0}.pagination button{padding:4px 10px}.filter-line{flex-wrap:wrap}.filter-line input{max-width:calc(100% - 80px);font-size:16px}.question-list{padding:4px 14px}.question-list-row{gap:9px;padding:14px 0}.question-list-row p{font-size:12px}.question-list-row>.tag{font-size:9px}.list-number{width:20px;flex-basis:20px}.level-tabs{gap:5px}.level-tabs button{padding:9px 3px;font-size:11px}.level-tabs span{display:block;margin:0;font-size:10px}.knowledge-card .section-title{align-items:flex-start}.knowledge-card select{font-size:12px;max-width:90px;padding:7px}.knowledge-card h2{font-size:16px}.knowledge-card p,.knowledge-card li{font-size:13px}.account-summary{gap:12px}.account-summary h2{font-size:16px}.account-summary button{font-size:12px;padding:8px 11px}.account-actions button,.file-button{font-size:13px}.result-panel{padding:26px 16px}.result-actions{flex-direction:column}.result-stats b{font-size:23px}.login-shell{display:block;margin:15px 0}.login-intro{margin-bottom:25px}.login-intro h1{font-size:32px}.login-intro p{margin-top:13px;font-size:12px}.login-form{padding:24px}.login-form input{font-size:16px}#toast{bottom:78px}}

/* ===== v4 ===== */
/* v4：知识点卡片 / 分区进度 / 错题本 */
.kp-toolbar{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:16px}
.kp-toolbar label{font-size:12px;color:var(--muted);display:flex;gap:6px;align-items:center}
.kp-toolbar select{padding:8px 10px;font-size:13px}
.kp-toolbar .muted{margin-left:auto;font-size:12px}
.kp-count{font-size:12px;color:var(--muted);margin-bottom:8px}
.kp-card{padding:30px 32px}
.kp-head{display:flex;justify-content:space-between;gap:20px;align-items:flex-start}
.kp-head h2{font-size:23px;line-height:1.45;margin:6px 0 8px}
.kp-head .muted{font-size:12px}
.star-btn{font-size:13px;padding:8px 14px;white-space:nowrap}
.star-btn.on{color:#ffd60a;border-color:rgba(255,214,10,.32);background:rgba(255,214,10,.10)}
.kp-summary{font-size:15px;line-height:1.95;color:var(--ink);margin:18px 0}
.kp-facts{margin:0 0 18px;padding-left:22px}
.kp-facts li{margin:9px 0;font-size:14px;line-height:1.8}
.kp-terms{display:flex;gap:7px;flex-wrap:wrap;margin:14px 0 4px}
.kp-state{display:flex;gap:8px;align-items:center;margin:18px 0;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:18px}
.kp-state>span{font-size:12px;color:var(--muted);margin-right:6px}
.kp-state button{font-size:13px;min-height:36px;padding:5px 13px}
.kp-related{border-top:1px solid var(--line);margin-top:16px;padding-top:18px}
.kp-related .section-title{margin-bottom:12px}
.kp-related h3{font-size:15px}
.rel-q{border:1px solid var(--line);border-radius:10px;padding:11px 14px;margin-bottom:9px}.rel-legend .dot.right{background:var(--green)}.rel-legend .dot.wrong{background:var(--red)}
.rel-q summary{cursor:pointer;font-size:14px;line-height:1.7}
.rel-q summary .tag{margin-right:8px}
.rel-q .rich{font-size:14px;border-top:1px solid var(--line);margin-top:11px;padding-top:11px}
.kp-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.kp-actions button{font-size:13px}
.kp-nav{display:flex;justify-content:space-between;border-top:1px solid var(--line);margin-top:22px;padding-top:20px}
.kp-nav button{min-width:132px}
.progress-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}
.progress-card{border:1px solid var(--line);border-radius:15px;padding:19px}
.progress-card.warn{border-color:rgba(255,69,58,.4);background:rgba(255,69,58,.10)}
.progress-card.good{border-color:rgba(48,209,88,.4);background:rgba(48,209,88,.12)}
.progress-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;margin-bottom:15px}
.progress-head h3{font-size:16px}
.progress-head p{font-size:11px;color:var(--muted);margin-top:4px}
.state{font-size:11px;padding:3px 9px;border-radius:20px;white-space:nowrap}
.state.idle{background:rgba(255,255,255,.08);color:rgba(255,255,255,.62)}
.state.run{background:rgba(10,132,255,.16);color:var(--primary)}
.state.warn{background:rgba(255,69,58,.12);color:var(--red)}
.state.good{background:rgba(48,209,88,.12);color:var(--green)}
.progress-line{display:flex;align-items:center;gap:10px;margin:8px 0;font-size:12px;color:var(--muted)}
.progress-line>span{width:44px;flex:0 0 44px}
.progress-line .bar{flex:1;height:6px;background:rgba(255,255,255,.08);border-radius:4px;overflow:hidden}
.progress-line .bar i{display:block;height:100%;background:var(--primary);border-radius:4px}
.progress-line .bar i.kp{background:#0a84ff}
.progress-line b{font-size:12px;color:var(--ink);min-width:64px;text-align:right}
.progress-actions{display:flex;gap:7px;margin-top:14px;flex-wrap:wrap}
.progress-actions button{font-size:12px;min-height:34px;padding:5px 11px}
.wrong-list{display:grid;gap:11px;margin-bottom:18px}
.wrong-row{display:flex;justify-content:space-between;align-items:center;gap:14px;border:1px solid var(--line);border-radius:12px;padding:15px 17px}
.wrong-row b{font-size:15px}
.wrong-row p{font-size:12px;margin-top:4px}
.wrong-actions{display:flex;gap:8px;flex-wrap:wrap}
.wrong-actions button{font-size:12px;min-height:36px;padding:6px 12px}
.weak-panel{border-color:rgba(255,214,10,.32);background:rgba(255,214,10,.10)}
.weak-row{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:12px 0;border-bottom:1px dashed rgba(255,214,10,.32)}
.weak-row:last-child{border-bottom:0}
.weak-row b{font-size:15px}
.weak-row p{font-size:12px;margin-top:3px}
.weak-actions{display:flex;gap:8px;flex-wrap:wrap}
.weak-actions button{font-size:12px;min-height:36px;padding:6px 12px}
@media(max-width:800px){.progress-grid{grid-template-columns:1fr}.kp-card{padding:22px 18px}}
@media(max-width:560px){.kp-toolbar{display:grid;grid-template-columns:1fr 1fr;gap:10px}.kp-toolbar label{width:auto;flex-direction:column;align-items:stretch;gap:5px;white-space:nowrap;font-size:11px}.kp-toolbar select{width:100%;font-size:14px;padding:7px 9px}.kp-toolbar button{font-size:12px;padding:8px 10px;white-space:nowrap}.kp-toolbar .muted{grid-column:1/-1;margin-left:0;text-align:right}.kp-head{flex-direction:column;gap:10px}.kp-head h2{font-size:19px}.star-btn{width:100%}.kp-summary{font-size:14px}.kp-facts li{font-size:13px}.kp-nav button{min-width:0;flex:1}.kp-actions button{width:100%}.kp-state button{flex:1}.progress-card{padding:16px}.progress-line>span{width:38px;flex-basis:38px}.wrong-row{flex-direction:column;align-items:stretch}.wrong-actions button{flex:1}.weak-row{flex-direction:column;align-items:stretch}.weak-actions button{flex:1}}

/* ===== 统一练习选择面板（一键选齐条件） ===== */
.practice-launch{display:flex;align-items:center;gap:14px;width:100%;text-align:left;padding:16px 19px;border:1px solid var(--line);border-radius:12px;background:#3a3a3c}
.practice-launch:hover{border-color:rgba(255,255,255,.22);background:rgba(255,255,255,.08)}
.practice-launch .pl-main{display:flex;flex-direction:column;gap:3px;min-width:0}
.practice-launch .pl-label{font-size:12px;color:var(--muted)}
.practice-launch .pl-summary{font-weight:600;font-size:14px;color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.practice-launch .pl-hint{margin-left:auto;flex-shrink:0;font-size:12px;color:var(--primary);background:var(--primary-soft);border-radius:8px;padding:5px 12px;font-weight:600}
.practice-dialog{max-width:560px;width:calc(100% - 32px);max-height:calc(100vh - 60px);padding:0;display:flex;flex-direction:column;overflow:hidden}
.practice-dialog .pd-scroll{overflow:auto;padding:22px 22px 4px;min-height:0}
.practice-dialog .section-title{margin-bottom:6px}
.opt-group{margin-top:15px}
.opt-group h4{margin:0 0 8px;font-size:12px;color:rgba(255,255,255,.62);font-weight:600}
.opt-chips{display:flex;flex-wrap:wrap;gap:8px}
.opt-chip{min-height:34px;padding:6px 14px;border-radius:10px;border:1px solid var(--line);background:var(--paper);color:var(--ink);font-size:13px}
.opt-chip:hover{border-color:rgba(255,255,255,.22);background:rgba(255,255,255,.06)}
.opt-chip[aria-pressed="true"]{background:var(--primary-soft);border-color:rgba(10,132,255,.45);color:var(--primary);font-weight:600}
.opt-hint{margin:7px 0 0;font-size:12px;color:var(--muted)}
.practice-foot{display:flex;align-items:center;gap:12px;border-top:1px solid var(--line);margin-top:15px;padding:14px 22px;background:var(--paper);flex-shrink:0}
.practice-foot>span{font-size:12px;color:var(--muted)}
.pf-actions{margin-left:auto;display:flex;gap:10px;align-items:center}
.pf-actions .primary{min-width:120px}
.bank-daily-hint{font-size:12px;color:var(--muted)}
#bankLaunch .start-action{border-top:0;margin-top:14px;padding-top:0}
@media (max-width:840px){
.practice-launch{padding:13px 15px}
.practice-launch .pl-hint{padding:4px 10px}
.practice-foot{flex-wrap:wrap}
.pf-actions{width:100%;margin-left:0}
.pf-actions .primary{flex:1}
.bank-daily-hint{display:none}
}
/* ===== 多空题干补全 + 做题记录回看 ===== */
.blank-ask{color:var(--primary);font-weight:750;border-bottom:2px solid var(--primary);padding:0 2px;white-space:nowrap}
.blank-filled{color:var(--green);font-weight:600;background:rgba(48,209,88,.12);border-bottom:1px dashed rgba(48,209,88,.4);border-radius:4px;padding:1px 4px;white-space:nowrap}
.stem-family-hint{font-size:12px;color:var(--muted);margin:-16px 0 20px}
button.history-row{display:flex;align-items:center;justify-content:space-between;gap:15px;width:100%;text-align:left;border:0;border-bottom:1px solid var(--line);border-radius:0;padding:11px 0;min-height:0;background:transparent}
button.history-row:hover{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.22)}
button.history-row:last-of-type{border-bottom:0}
button.history-row b{font-size:14px}
button.history-row p{font-size:12px}
.history-list .soft-btn{margin-top:10px}

/* ===== 图片灯箱(点击放大居中,点击任意处收回) ===== */
.image-lightbox{border:0;padding:0;background:transparent;width:100vw;height:100vh;max-width:100vw;max-height:100vh;overflow:hidden;display:flex;align-items:center;justify-content:center}
.image-lightbox::backdrop{background:rgba(0,0,0,.78)}
.image-lightbox img{max-width:min(1600px,94vw);max-height:88vh;width:auto;height:auto;border-radius:10px;border:1px solid rgba(255,255,255,.14);background:#1c1c1e;cursor:zoom-out;touch-action:none;will-change:transform;user-select:none;-webkit-user-drag:none}
.image-lightbox .lb-close{position:fixed;top:14px;right:18px;min-height:36px;padding:6px 13px;font-size:14px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:8px;color:rgba(255,255,255,.85)}
.image-lightbox .lb-close:hover{background:rgba(255,255,255,.14)}
/* ===== 做题记录回看:汇总条 ===== */
.hist-chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
/* ===== obsidian卡片 图谱页 ===== */
.obs-chips{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 16px}
.obs-chips .opt-chip small{color:var(--muted);font-weight:400}
.obs-chips .opt-chip.on{background:var(--primary-soft);border-color:rgba(10,132,255,.45);color:var(--primary)}
.obs-shell{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:18px;align-items:start}
.obs-canvas-wrap{position:relative;border:1px solid var(--line);border-radius:12px;background:#16161a;overflow:hidden}
#obsCanvas{display:block;width:100%;height:auto;touch-action:none;cursor:default}
.obs-tip{position:absolute;pointer-events:none;background:#3a3a3c;border:1px solid rgba(255,255,255,.14);color:rgba(255,255,255,.95);font-size:12px;padding:5px 10px;border-radius:8px;max-width:260px;z-index:5}
.obs-side{position:sticky;top:20px;padding:20px}
.obs-area-list{display:flex;flex-direction:column;gap:6px;margin-top:10px}
.obs-area-row{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted)}
.obs-area-row i{width:9px;height:9px;border-radius:50%;display:inline-block;flex-shrink:0}
.obs-area-row b{color:var(--ink);margin-left:auto}
@media (max-width:840px){.obs-shell{grid-template-columns:1fr}.obs-side{position:static}}

/* ===== obsidian卡片:动效与质感 ===== */
.obs-canvas-wrap{min-height:0}
#obsCanvas{width:100%;height:clamp(380px,62vh,640px);display:block}
.obs-zoom{position:absolute;top:12px;right:12px;display:flex;flex-direction:column;gap:6px;z-index:4}
.obs-zoom button{min-height:34px;width:36px;padding:0;font-size:15px;border-radius:8px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);color:rgba(255,255,255,.85)}
.obs-zoom button:hover{background:rgba(255,255,255,.14)}
.blank-missing{color:var(--muted);border-bottom:1px dashed var(--line);padding:0 2px}

/* ===== 手机端触控优化 ===== */
@media (max-width:840px){
.rel-card-grid button{min-height:42px;font-size:13px}
.answer-card-grid button{min-height:42px}
.rel-card-grid{grid-template-columns:repeat(auto-fill,minmax(42px,1fr));max-height:176px}
.obs-chips .opt-chip{min-height:40px;padding:8px 14px}
.obs-zoom button{min-height:42px;width:44px;font-size:17px}
.kp-toolbar summary,.account-fold>summary{min-height:40px;display:flex;align-items:center}
}

/* ===== 原站解析折叠(补全解析为主时) ===== */
.analysis-orig{margin-top:10px;font-size:12px}
.analysis-orig>summary{cursor:pointer;color:var(--muted)}
.analysis-orig>summary:hover{color:var(--primary)}
.analysis-orig .rich{font-size:13px;margin-top:8px;color:var(--muted)}
.analysis-extra .rich b{color:var(--ink)}

/* ===== 单题一屏:桌面端解析区上限+内部滚动(补全解析后不撑长页面) ===== */
.question-panel .analysis>.rich{max-height:min(44vh,430px);overflow-y:auto;padding-right:4px}
@media (min-width:841px){.question-panel .analysis{max-height:34vh;overflow-y:auto}}