*{box-sizing:border-box}body{margin:0;background-color:var(--paper);background-image:linear-gradient(rgb(21 33 59/.033) 1px,transparent 1px),linear-gradient(90deg,rgb(21 33 59/.033) 1px,transparent 1px),linear-gradient(rgb(21 33 59/.015) 1px,transparent 1px),linear-gradient(90deg,rgb(21 33 59/.015) 1px,transparent 1px);background-size:40px 40px,40px 40px,8px 8px,8px 8px;color:var(--ink);font-family:var(--font-body);font-size:16px}button,input,textarea{font:inherit;color:inherit}button{cursor:pointer}a{text-decoration:none}button:focus-visible,a:focus-visible,textarea:focus-visible{outline:3px solid var(--accent);outline-offset:2px}.shell{max-width:760px;margin:auto;padding:16px 16px 82px;min-height:100vh}.route-page{animation:enter .16s ease-out;transform:none!important}main.shell{overflow-x:hidden}.q-page{overflow-wrap:anywhere}.nav{position:fixed;z-index:5;bottom:0;width:100%;display:flex;background:var(--paper);border-top:1px solid var(--line)}.nav.hidden{display:none}.nav a{position:relative;flex:1;min-height:60px;text-align:center;padding:6px;color:var(--ink-2);font-size:11px}.nav i{display:block;height:24px;font-style:normal}.nav svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.nav .active{color:var(--accent)}.nav .active:before{content:"";position:absolute;top:0;left:calc(50% - 12px);width:24px;height:2px;background:var(--accent)}h1,h2,h3,.display{font-family:var(--font-display)}h1{font-size:26px;font-weight:600;letter-spacing:-.01em;margin:0 0 18px}.card,.list-item,.ring{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius)}.card,.list-item{padding:16px;margin-bottom:10px}.muted{color:var(--ink-2);font-size:14px}.row{display:flex;gap:var(--gap);align-items:center;justify-content:space-between;flex-wrap:wrap}.tabs{display:flex;gap:6px;overflow-x:auto;white-space:nowrap;margin-bottom:16px;padding-bottom:2px}.tabs button,.pill,.btn{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--ink);background:transparent;border-radius:var(--radius-sm);padding:0 11px;min-height:40px;font-size:14px;font-weight:500;white-space:nowrap}.tabs .active,.btn.primary{background:var(--accent);color:var(--paper);border-color:var(--accent)}.tabs button{border-color:var(--line)}.progress{height:8px;background:var(--paper-2);border-radius:9px;overflow:hidden}.progress>*{display:block;height:100%;background:var(--accent)}.countdown{margin:0 0 18px}.countdown small,.ring small,.home-numbers small,.exam-card small{display:block;color:var(--ink-3);font-size:12px}.countdown strong{font-size:56px;line-height:1}.countdown span{font-size:18px;margin-left:6px}.countdown p{display:inline;margin-left:12px;font-size:13px;color:var(--ink-2)}.rings{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.ring{min-height:76px;padding:12px;display:flex;align-items:center;gap:10px;position:relative}.ring svg{width:48px;height:48px;flex:none}.ring-value{position:absolute;left:12px;width:48px;text-align:center;font-size:12px}.ring b{display:block;font-size:15px;font-weight:600}.home-review{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:12px}.home-numbers{display:flex;gap:18px}.home-numbers b{display:block;font-size:28px;line-height:1.1}.chapter-item{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:center}.chapter-item b{display:block;font-size:16px;font-weight:600;line-height:1.3}.chapter-item span{display:block;color:var(--ink-3);font-size:13px;line-height:1.4;margin-top:3px}.chapter-item .progress{grid-column:1/-1}.q-shell{max-width:none;padding:0;min-height:100dvh}.q-page{padding:0 0 calc(64px + env(safe-area-inset-bottom))}.q-head,.q-foot{position:sticky;z-index:3;background:var(--paper);border-block:1px solid var(--line);padding:4px 16px;display:flex;align-items:center;gap:8px}.q-head{top:0;height:48px}.q-head .subject{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.q-number,.timer{font-family:var(--font-mono);font-size:13px;white-space:nowrap}.q-head .btn{min-height:36px;padding:0 8px}.q-body{max-width:760px;margin:auto;padding:22px 16px}.pill{min-height:0;border-color:var(--line);font-size:12px;color:var(--ink-2);padding:4px 8px}.stem{font-size:calc(17px + var(--font-size));line-height:1.65;margin:16px 0 18px}.option{width:100%;min-height:52px;text-align:left;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-sm);margin:8px 0;padding:10px 12px;display:flex;gap:12px;align-items:center;line-height:1.55;font-size:calc(16px + var(--font-size));transition:background .22s}.option:hover,.option:active{background:var(--paper-2)}.option b{display:grid;place-items:center;width:28px;height:28px;flex:none;border:1px solid var(--ink);border-radius:50%;font:600 18px var(--font-display)}.option.ok{background:var(--ok-soft);border-left:3px solid var(--ok)}.option.bad{background:var(--bad-soft);border-left:3px solid var(--bad)}.option.selected{border-color:var(--accent);background:var(--accent-soft)}.analysis{animation:slide .2s ease-out;border-top:1px solid var(--line);padding:16px;background:var(--paper-2);line-height:1.7}.analysis p{margin:6px 0}.analysis-head{display:flex;justify-content:space-between;gap:12px}.analysis .actions{display:flex;gap:8px;margin-top:12px}.analysis .actions .btn{flex:1;padding:0 4px}.bad-text{color:var(--bad)}.q-foot{position:fixed;bottom:0;left:0;right:0;justify-content:space-between;padding-bottom:calc(8px + env(safe-area-inset-bottom));min-height:56px}.confirm{width:120px}.switch{border:0;background:transparent;font-size:13px}.switch i{display:inline-block;width:28px;height:16px;border-radius:9px;background:var(--line);vertical-align:middle;margin-left:4px}.switch i:after{content:"";display:block;width:12px;height:12px;margin:2px;background:var(--paper);border-radius:50%;transition:transform .16s}.switch.on i{background:var(--accent)}.switch.on i:after{transform:translate(12px)}.drawer{position:fixed;z-index:8;inset:auto 0 0;background:var(--paper);border:1px solid var(--line);padding:18px;max-height:60vh;overflow:auto}.dots{display:grid;grid-template-columns:repeat(8,1fr);gap:10px}.dot{border-radius:50%;width:34px;height:34px;border:0;background:var(--paper-2)}.dot.done{background:var(--ink);color:var(--paper)}.dot.wrong{background:var(--bad);color:var(--paper)}.dot.mark{background:var(--gold);color:var(--paper)}.toast{position:fixed;z-index:10;bottom:80px;left:50%;transform:translate(-50%);padding:10px 14px;background:var(--ink);color:var(--paper);border-radius:var(--radius-sm);font-size:13px}.exam-card{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:center}.exam-card small{grid-column:1}.report strong{font-size:42px}.card p span{float:right}.heat{height:20px;background:var(--accent-soft);margin:8px 0}.bar-chart{height:120px;display:flex;align-items:end;gap:4px}.bar-chart i{flex:1;background:var(--accent)}textarea{width:100%;min-height:130px;padding:10px;border:1px solid var(--line);background:var(--paper);border-radius:var(--radius-sm)}@keyframes enter{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}@keyframes slide{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}@media (min-width:900px){.nav{top:0;bottom:0;width:72px;display:block;border-right:1px solid var(--line);border-top:0}.nav a{display:block;padding:14px 4px}.shell{margin-left:72px;padding:16px 32px 24px}.q-shell{margin-left:0;padding:0}.q-foot{left:0}.rings{grid-template-columns:repeat(4,1fr)}}.observation>b{display:block;margin-bottom:10px}.observation-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}.observation-grid span,.review-stats span{min-width:0;background:var(--paper-2);border-radius:var(--radius-sm);padding:8px}.observation-grid small,.review-stats small{display:block;color:var(--ink-3);font-size:12px;white-space:nowrap}.observation-grid strong{display:block;margin-top:3px;font-size:14px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.radar-item{position:relative;padding:12px 12px 16px}.radar-top{display:flex;align-items:center;gap:8px;min-width:0}.radar-top b{min-width:0;flex:1;font-size:15px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.radar-top code{font:12px var(--font-mono);white-space:nowrap}.radar-top>i{font-style:normal;font-weight:600;color:var(--ok)}.radar-meta{display:flex;align-items:center;gap:5px;min-width:0;margin-top:6px;color:var(--ink-3);font-size:12px;white-space:nowrap}.radar-meta>span:first-child{overflow:hidden;text-overflow:ellipsis}.radar-meta em{font-style:normal}.radar-meta .pill{flex:none;padding:3px 7px}.weak-bar{position:absolute;right:12px;bottom:8px;left:12px;height:4px;overflow:hidden;border-radius:4px;background:var(--line)}.weak-bar i{display:block;height:100%;border-radius:inherit}.weak-bar .bad{background:var(--bad)}.weak-bar .gold{background:var(--gold)}.weak-bar .ok{background:var(--ok)}.weak-bar .untrained{background:#8a94a68c}.radar-item.mastered{opacity:.6}.review-summary{display:grid;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:14px}.review-summary>.display{font-size:42px;line-height:1}.review-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}.review-stats b{display:block;margin-top:3px;font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.review-filters{position:sticky;z-index:2;top:0;margin-inline:-16px;padding:10px 16px 8px;background:var(--paper)}.review-filters button{border-radius:999px}.review-pills{display:flex;gap:5px;overflow:hidden;margin-bottom:12px;white-space:nowrap}.review-pills .pill{overflow:hidden;text-overflow:ellipsis}.review-stem{display:block;line-height:1.6}.review-options{margin:10px 0}.review-options p{margin:7px 0;line-height:1.5}.review-analysis{margin:12px 0;padding:10px;background:var(--paper-2);border-radius:var(--radius-sm);line-height:1.6}.review-analysis p{margin:4px 0 0}.feel-control{display:flex;width:100%;margin:14px 0 10px;border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden}.feel-control button{flex:1;min-width:0;min-height:40px;border:0;border-right:1px solid var(--line);background:transparent;font-size:13px}.feel-control button:last-child{border-right:0}.feel-control button.active{background:var(--accent);color:var(--paper)}.review-q textarea{display:block;min-height:54px;line-height:1.5;resize:none;overflow:hidden}.chapter-actions{display:flex;gap:6px}.session-overlay,.confirm-overlay{position:fixed;z-index:30;top:0;right:0;bottom:0;left:0;background:#15213b6b;display:flex;align-items:end}.session-sheet,.confirm-card{width:100%;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius) var(--radius) 0 0;padding:18px;max-height:90dvh;overflow:auto}.session-sheet>b{display:block;margin:16px 0 8px}.session-sheet .tabs{margin:6px 0}.confirm-overlay{z-index:31;align-items:center;justify-content:center;padding:16px}.confirm-card{width:min(360px,100%);border-radius:var(--radius);max-height:none}.confirm-card>div{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}.pause-cover{position:fixed;z-index:20;top:0;right:0;bottom:0;left:0;border:0;background:var(--ink);color:var(--paper);font:600 24px var(--font-display)}@media (min-width:900px){.session-overlay{align-items:center;justify-content:center}.session-sheet{width:420px;border-radius:var(--radius);max-height:min(720px,90dvh)}}.stats-numbers{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.stats-numbers .card{margin:0;padding:12px}.stats-numbers small{display:block;color:var(--ink-3);font-size:12px}.stats-numbers b{display:block;margin-top:4px;font-size:28px}.stats-chapter{display:grid;grid-template-columns:1fr auto;gap:6px 10px;align-items:end;margin:14px 0}.stats-chapter b{display:block;font-size:14px}.stats-chapter span{color:var(--ink-3);font-size:13px}.stats-chapter .progress{grid-column:1/2}.stats-chapter .progress .ok{background:var(--ok)}.stats-chapter .progress .gold{background:var(--gold)}.stats-chapter .progress .bad{background:var(--bad)}.stats-chapter em{grid-column:2;grid-row:2;font:12px var(--font-mono);font-style:normal}.stats-unstarted{border-top:1px solid var(--line);margin:12px 0 0;padding-top:12px}.stats-chart{display:block;width:100%;height:128px;fill:var(--accent)}.stats-calendar{display:grid;grid-template-columns:repeat(7,1fr);gap:6px}.stats-calendar span{display:grid;place-items:center;aspect-ratio:1;border-radius:50%;background:var(--paper-2);font:12px var(--font-mono);color:var(--ink-3)}.stats-calendar .done{background:var(--accent);color:var(--paper)}@media (min-width:900px){.stats-numbers{grid-template-columns:repeat(4,minmax(0,1fr))}}.q-route-page{animation:none}.q-foot{z-index:40}.toast{pointer-events:none}.saved-note{margin-top:12px;padding:12px;background:var(--paper);border-radius:var(--radius-sm)}.saved-note>div{display:flex;align-items:center;justify-content:space-between;gap:8px}.saved-note p{margin:8px 0 0;white-space:pre-wrap}.route-page{animation:fade-in .16s ease-out}.countdown p{display:block;margin:4px 0 0;color:var(--ink-3);font-size:12px}.ring-progress{white-space:nowrap;font-size:12px}.ring-progress-short{display:none}.q-page{padding-bottom:calc(72px + env(safe-area-inset-bottom))}.q-head .subject{min-width:0}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@media (max-width: 430px){.ring-progress-full{display:none}.ring-progress-short{display:inline}}@media (min-width: 900px){.q-page{max-width:760px;margin:auto}.q-foot{left:50%;right:auto;width:min(760px,100%);transform:translate(-50%)}}a{color:inherit;text-decoration:none}.empty-chapter{opacity:.58}.empty-state{text-align:center;padding:32px 16px;color:var(--ink-2)}.case-list{width:100%;text-align:left;display:block;color:inherit}.case-list small{display:block;margin-top:6px;color:var(--ink-3)}.case-toggle{width:100%;border:0;background:transparent;color:inherit;text-align:left;font-weight:600;padding:0}.case-toggle span{float:right;color:var(--accent);font-size:13px}.case-sub textarea{margin-top:14px}.stat-row{display:grid;grid-template-columns:1fr auto;gap:4px 10px;align-items:center;margin:10px 0}.stat-row small{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.stat-row .heat{grid-column:1 / -1;margin:0;background:var(--paper-2)}.stat-row .heat i{display:block;height:100%;background:var(--accent)}.daily-card{display:flex;align-items:center;justify-content:space-between;gap:16px}.daily-card>div{min-width:0}.daily-card h3,.daily-card p{display:inline;margin:0}.daily-card p{margin-left:8px}.daily-card .btn{flex:none}.ring small{font-size:12px;white-space:nowrap}.report-actions{grid-column:1 / -1;display:flex;gap:8px;margin-top:2px}.report-actions .btn{flex:1}.review-summary>.display{font-size:40px}.stats-calendar{grid-template-columns:repeat(7,28px);gap:6px}.stats-calendar span{width:28px;height:28px;aspect-ratio:auto;font:11px var(--font-mono)}.pill{min-height:28px}@media (min-width: 900px){.ring-progress-full{display:none}.ring-progress-short{display:inline}}@media (max-width: 520px){.daily-card{align-items:flex-start;flex-direction:column}.daily-card h3,.daily-card p{display:block}.daily-card p{margin:4px 0 0}}:root{--paper:#F6F3EC;--paper-2:#EEEAE0;--ink:#15213B;--ink-2:#4A5568;--ink-3:#8A94A6;--line:#D9D3C5;--accent:#0E7C86;--accent-soft:#D6ECEE;--ok:#2E7D4F;--ok-soft:#DDF0E3;--bad:#C8412B;--bad-soft:#F8DDD6;--gold:#B7791F;--gold-soft:#F6E9CF;--radius:10px;--radius-sm:6px;--gap:12px;--font-display:"Fraunces","Noto Serif SC","Songti SC","SimSun",Georgia,serif;--font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;--font-mono:"JetBrains Mono","Consolas",monospace;--font-size:0px}@font-face{font-family:Fraunces;src:url(../fonts/fraunces-latin.woff2) format("woff2");font-display:swap;unicode-range:U+0000-00FF}@media (prefers-color-scheme: dark){:root:not([data-theme=light]){--paper:#12161F;--paper-2:#1A2029;--ink:#E8E4DA;--ink-2:#B8B2A6;--ink-3:#7C7568;--line:#2A3140;--accent:#3FB0BA;--accent-soft:#1c3b42;--ok:#63b882;--ok-soft:#183d29;--bad:#ec7f6d;--bad-soft:#48251f;--gold:#e0ae58;--gold-soft:#493718}}[data-theme=dark]{--paper:#12161F;--paper-2:#1A2029;--ink:#E8E4DA;--ink-2:#B8B2A6;--ink-3:#7C7568;--line:#2A3140;--accent:#3FB0BA;--accent-soft:#1c3b42;--ok:#63b882;--ok-soft:#183d29;--bad:#ec7f6d;--bad-soft:#48251f;--gold:#e0ae58;--gold-soft:#493718}