:root{
  --paper:#f6f4ef;--surface:#fffdf8;--surface-soft:#eef3ed;--ink:#20332b;--deep:#173429;
  --muted:#718078;--line:#dde2db;--green:#1f684f;--mint:#dceddf;--gold:#c8912e;
  --red:#b94b3f;--red-soft:#f9e7e2;--memory:#315f72;--memory-soft:#edf3f5;
  --shadow:0 8px 24px rgba(23,52,41,.06);font-family:"PingFang SC","Noto Sans CJK SC",system-ui,sans-serif;color-scheme:light
}

.practice-filters .practice-shuffle{margin-left:auto;border-color:var(--green);color:var(--green)}
.practice-filters .practice-reset{margin-left:0}
.practice-filters .practice-overview-toggle{border-color:color-mix(in srgb,var(--memory) 55%,var(--line));color:var(--memory)}
.practice-filters .practice-overview-toggle.active{border-color:var(--memory);background:var(--memory-soft);color:var(--memory)}

/* 2026考试大纲：只读速览，不混入学习进度、记忆和练习。 */
body.is-syllabus .progress-card,
body.is-syllabus #review-center-entry,
body.is-syllabus .filter-drawer,
body.is-syllabus .hero-progress,
body.is-syllabus .stats,
body.is-syllabus .study-rail,
body.is-syllabus .toolbar{display:none!important}
body.is-syllabus .study-workspace{grid-template-columns:minmax(0,1fr)}
body.is-syllabus .hero{min-height:190px;background:linear-gradient(135deg,#173f32 0%,#205c47 62%,#33745d 100%)}
body.is-syllabus .hero-copy{max-width:860px}
body.is-syllabus .unit-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;overflow:visible;border:0;border-radius:0;background:transparent}
body.is-syllabus .unit-card{grid-template-columns:38px minmax(0,1fr);gap:16px;padding:22px;border:1px solid var(--line);border-radius:13px;background:var(--surface);box-shadow:var(--shadow)}
body.is-syllabus .unit-card.syllabus-detail{border-top:3px solid color-mix(in srgb,var(--green) 68%,var(--line))}
body.is-syllabus .unit-card.syllabus-detail .unit-index{background:var(--surface-soft);color:var(--green)}
body.is-syllabus .unit-index{width:38px;height:38px;background:var(--deep);color:#fff}
body.is-syllabus .points{display:block!important}
body.is-syllabus .point{padding:10px 0;font-size:13px;line-height:1.75}
body.is-syllabus .favorite,
body.is-syllabus .unit-actions label,
body.is-syllabus .note,
body.is-syllabus .memory-entry{display:none!important}
body.is-syllabus .unit-actions{justify-content:flex-start}
body.is-syllabus .evidence-button{border-color:color-mix(in srgb,var(--green) 35%,var(--line));background:var(--surface-soft)}

@media(max-width:900px){body.is-syllabus .unit-grid{grid-template-columns:1fr}}
@media(max-width:800px){
  body.is-syllabus .hero{min-height:0;padding:20px}
  body.is-syllabus .hero p{display:block;margin-top:10px;font-size:11px}
  body.is-syllabus .unit-card{grid-template-columns:1fr;padding:18px}
  body.is-syllabus .unit-index{display:grid}
  body.is-syllabus .points-title,body.is-syllabus .points{display:block!important}
  body.is-syllabus .section-heading{align-items:flex-start}
  body.is-syllabus .section-heading>span{max-width:145px}
}

.memory-navigation{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.memory-navigation button,.memory-unit-nav button{padding:8px 11px;border:1px solid var(--line);border-radius:7px;background:var(--paper);color:var(--ink);cursor:pointer}
.memory-navigation span{color:var(--muted);font-size:11px}
.memory-hub-summary{display:grid;grid-template-columns:repeat(4,1fr);gap:9px;margin:20px 0}
.memory-hub-summary>div{padding:14px;border:1px solid var(--line);border-radius:9px;background:var(--paper)}
.memory-hub-summary strong,.memory-hub-summary span{display:block}.memory-hub-summary strong{font-size:24px;color:var(--green)}.memory-hub-summary span{margin-top:3px;color:var(--muted);font-size:10px}
.memory-topic-list{display:grid;gap:10px}.memory-topic-row{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:14px;padding:15px;border:1px solid var(--line);border-radius:10px;background:var(--surface)}
.memory-topic-index{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--surface-soft);color:var(--green);font-weight:800}
.memory-topic-info small{color:var(--green);font-size:10px}.memory-topic-info h3{margin:4px 0;font-size:15px}.memory-topic-info p{margin:4px 0 8px;color:var(--muted);font-size:11px}.memory-topic-info>div{height:4px;background:var(--paper)}.memory-topic-info>div i{display:block;height:100%;background:var(--gold)}.memory-topic-info>span{display:block;margin-top:5px;color:var(--muted);font-size:9px}
.memory-topic-row>button{padding:8px 11px;border:0;border-radius:7px;background:var(--green);color:#fff;cursor:pointer}.memory-unit-nav{display:grid;grid-template-columns:1fr auto 1fr;gap:9px;margin-top:24px;padding-top:18px;border-top:1px solid var(--line)}.memory-unit-nav button:last-child{justify-self:end}.memory-unit-nav button:disabled{opacity:.35;cursor:default}
@media(max-width:800px){.memory-hub-summary{grid-template-columns:1fr 1fr}.memory-topic-row{grid-template-columns:auto 1fr}.memory-topic-row>button{grid-column:2;justify-self:start}.memory-unit-nav{grid-template-columns:1fr 1fr}.memory-unit-nav button:nth-child(2){display:none}.memory-unit-nav button:last-child{justify-self:stretch}}
[data-theme="dark"]{--paper:#121713;--surface:#1b221e;--surface-soft:#243028;--ink:#edf3ef;--deep:#edf3ef;--muted:#a3afa7;--line:#344039;--green:#8dd4b7;--mint:#244d3d;--gold:#edbd5a;--red:#ee857a;--red-soft:#392522;--memory:#9bc8dd;--memory-soft:#1b3038;--shadow:0 8px 24px rgba(0,0,0,.22);color-scheme:dark}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink)}
button,input,textarea{font:inherit}
button{color:inherit}
.app-shell{display:grid;grid-template-columns:276px minmax(0,1fr);min-height:100vh}

.sidebar{position:sticky;top:0;height:100vh;overflow:auto;padding:28px 20px;background:var(--surface);border-right:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:10px;background:var(--green);color:#fff;font-family:"Songti SC",serif;font-size:18px;font-weight:700}
.brand strong,.brand small{display:block}.brand strong{font-family:"Songti SC",serif;font-size:20px;color:var(--deep)}.brand small{margin-top:2px;color:var(--muted);font-size:11px}
.progress-card{margin:18px 0 24px;padding:12px 14px;border:1px solid var(--line);border-radius:9px;background:var(--surface-soft)}
.progress-card>div:first-child{display:flex;align-items:center;justify-content:space-between}.progress-card span{font-size:11px;color:var(--muted)}.progress-card strong{font-size:14px;color:var(--green)}
.progress-track,.hero-progress-track{height:6px;margin-top:9px;overflow:hidden;border-radius:6px;background:color-mix(in srgb,var(--green) 16%,transparent)}
.progress-track i,.hero-progress-track i{display:block;width:0;height:100%;border-radius:inherit;background:var(--green);transition:width .25s}
.review-center-entry{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:10px;width:100%;margin:-10px 0 22px;padding:11px 12px;border:1px solid var(--line);border-radius:9px;background:var(--surface);text-align:left;cursor:pointer}.review-center-entry:hover{border-color:var(--green);background:var(--surface-soft)}.review-center-entry.urgent{border-color:color-mix(in srgb,var(--red) 48%,var(--line));background:var(--red-soft)}.review-entry-icon{display:grid;place-items:center;width:30px;height:30px;border-radius:8px;background:var(--memory-soft);color:var(--memory);font-weight:800}.review-entry-copy{min-width:0}.review-entry-copy strong,.review-entry-copy small{display:block}.review-entry-copy strong{font-size:12px}.review-entry-copy small{margin-top:2px;overflow:hidden;color:var(--muted);font-size:9px;line-height:1.4}.review-center-entry em{display:grid;place-items:center;min-width:24px;height:24px;padding:0 6px;border-radius:12px;background:var(--red);color:#fff;font-size:10px;font-style:normal}

#chapters{margin:0 0 20px}
.directory-heading{display:flex;align-items:end;justify-content:space-between;margin:0 2px 9px}.directory-heading>div span,.directory-heading>div strong{display:block}.directory-heading>div span{color:var(--muted);font-size:10px;font-weight:700;letter-spacing:.1em}.directory-heading>div strong{margin-top:3px;font-size:13px}.directory-heading>small{max-width:96px;color:var(--muted);font-size:9px;line-height:1.4;text-align:right}
.accordion-list,.practice-accordion-list{display:grid;gap:4px}
.accordion-subject{border-radius:8px;overflow:hidden}
.accordion-subject-trigger,.practice-subject-trigger{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:9px;width:100%;min-height:42px;padding:8px 10px;border:0;border-radius:8px;background:transparent;text-align:left;cursor:pointer}
.accordion-subject-trigger:hover,.practice-subject-trigger:hover{background:var(--surface-soft)}
.accordion-subject.active>.accordion-subject-trigger,.practice-subject.active>.practice-subject-trigger{background:var(--mint)}
.subject-code{color:var(--muted);font-size:11px;font-weight:700;white-space:nowrap}.subject-copy{min-width:0}.subject-copy strong,.subject-copy small{display:block}.subject-copy strong{font-size:13px;line-height:1.35}.subject-copy small{display:none}.accordion-subject-trigger>i,.practice-subject-trigger>i{color:var(--muted);font-size:13px;font-style:normal}
.accordion-children{display:grid;gap:3px;margin:3px 0 6px;padding-left:28px}
.accordion-chapter,.practice-chapter-row{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:7px;width:100%;padding:8px;border:0;border-radius:7px;background:transparent;text-align:left;cursor:pointer}
.accordion-chapter:hover,.accordion-chapter.active,.practice-chapter-row:hover{background:var(--surface-soft)}
.accordion-chapter>span,.practice-chapter-row>span{display:flex;align-items:center;gap:7px;min-width:0}.accordion-chapter>span:before,.practice-chapter-row>span:before{content:"";width:6px;height:6px;flex:0 0 auto;border-radius:50%;background:var(--line)}.accordion-chapter.active>span:before{background:var(--green)}.accordion-chapter b,.practice-chapter-row b{font-size:10px;color:var(--muted)}.accordion-chapter strong,.practice-chapter-row strong{font-size:11px}.accordion-chapter i,.practice-chapter-row i{font-size:9px;font-style:normal;color:var(--muted)}
.accordion-empty{margin:0;padding:8px 10px;color:var(--muted);font-size:10px;line-height:1.5}

.legend{padding-top:18px;border-top:1px solid var(--line)}
.practice-cascade-heading{display:flex;align-items:end;justify-content:space-between;margin:0 2px 9px}.practice-cascade-heading span{font-size:12px;font-weight:700;letter-spacing:.06em}.practice-cascade-heading small{max-width:104px;color:var(--muted);font-size:9px;line-height:1.35;text-align:right}
.practice-accordion-list{padding:6px;border:1px solid var(--line);border-radius:10px;background:var(--paper)}
.practice-subject-trigger{min-height:38px}.practice-subject.active>.practice-subject-trigger{background:var(--surface-soft)}
.practice-subject .accordion-children{padding:6px;margin:0;background:var(--surface);border-radius:8px}
.practice-chapter-row{grid-template-columns:minmax(0,1fr) auto auto;background:var(--surface)}.practice-chapter-row em{padding:3px 6px;border-radius:10px;background:var(--green);color:#fff;font-size:8px;font-style:normal}.practice-chapter-row:disabled{opacity:.5;cursor:not-allowed}
.paper-library-entry{display:flex;align-items:center;justify-content:space-between;gap:9px;width:100%;margin-top:9px;padding:11px;border:1px solid var(--line);border-radius:9px;background:var(--surface);text-align:left;cursor:pointer}.paper-library-entry:hover,.paper-library-entry.active{border-color:var(--green);background:var(--mint)}.paper-library-entry>span{display:grid;grid-template-columns:auto 1fr;column-gap:8px;align-items:center}.paper-library-entry b{grid-row:1/3;display:grid;place-items:center;width:26px;height:26px;border-radius:7px;background:var(--deep);color:#fff;font-size:10px}.paper-library-entry strong,.paper-library-entry small{display:block}.paper-library-entry strong{font-size:11px}.paper-library-entry small{margin-top:2px;color:var(--muted);font-size:8px}.paper-library-entry em{white-space:nowrap;color:var(--green);font-size:9px;font-style:normal}
.filter-drawer{margin-top:12px}.filter-drawer summary{padding:9px 2px;color:var(--muted);font-size:11px;cursor:pointer}.filter-list{display:grid;grid-template-columns:1fr 1fr;gap:6px;padding-top:4px}.filter{padding:8px;border:1px solid var(--line);border-radius:7px;background:transparent;color:var(--muted);font-size:10px;cursor:pointer}.filter:hover,.filter.active{border-color:var(--green);background:var(--mint);color:var(--deep)}

main{min-width:0;padding:0 36px 72px}
.topbar{position:sticky;top:0;z-index:8;display:flex;align-items:center;gap:14px;height:72px;background:color-mix(in srgb,var(--paper) 92%,transparent);backdrop-filter:blur(14px)}
.breadcrumb{min-width:220px;color:var(--muted);font-size:12px}.mobile-menu{display:none}
.search{display:flex;align-items:center;gap:8px;width:min(380px,38vw);margin-left:auto;padding:8px 12px;border:1px solid var(--line);border-radius:8px;background:var(--surface)}.search>span{color:var(--muted);font-size:10px}.search input{min-width:0;width:100%;border:0;outline:0;background:transparent;color:var(--ink);font-size:12px}
.actions{display:flex;align-items:center;gap:7px}.actions button{padding:7px 9px;border:1px solid var(--line);border-radius:7px;background:var(--surface);font-size:10px;cursor:pointer}.sync-status{display:inline-flex;align-items:center;gap:6px;white-space:nowrap;color:var(--muted);font-size:10px}.sync-status:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--gold)}.sync-status[data-state="synced"]:before{background:var(--green)}.sync-status[data-state="offline"]:before{background:var(--red)}.sync-status[data-state="syncing"]:before{animation:pulse 1s infinite}@keyframes pulse{50%{opacity:.3}}

.hero{display:flex;align-items:center;gap:32px;min-height:182px;padding:26px 30px;border-radius:12px;background:var(--deep);color:#fff}
.hero-copy{min-width:0;flex:1}.hero .eyebrow{display:inline-flex;padding:5px 10px;border-radius:14px;background:rgba(255,255,255,.09);color:#d9e9df;font-size:11px}.hero h1{margin:12px 0 0;font-family:"Songti SC",serif;font-size:clamp(28px,3vw,38px);font-weight:700}.hero p{margin:8px 0 0;color:#cfddd4;font-size:13px;line-height:1.65}
.hero-progress{width:250px}.hero-progress>div:first-child{display:flex;align-items:center;justify-content:space-between}.hero-progress span{color:#c8d9cf;font-size:11px}.hero-progress strong{font-size:18px}.hero-progress-track{background:rgba(255,255,255,.16)}.hero-progress-track i{background:#92cda7}.hero-progress button{display:flex;align-items:center;justify-content:space-between;gap:22px;margin:14px 0 0 auto;padding:10px 14px;border:0;border-radius:8px;background:#fff;color:#173429;font-size:12px;font-weight:700;cursor:pointer}.hero-progress button span{color:#173429;font-size:15px}
.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:22px 0 26px}.stat{display:flex;align-items:center;gap:12px;min-height:78px;padding:14px 18px;border:1px solid var(--line);border-radius:10px;background:var(--surface);text-align:left;cursor:pointer}.stat:first-child{background:var(--mint)}.stat:hover{border-color:var(--green)}.stat-icon{display:grid;place-items:center;width:34px;height:34px;border-radius:8px;background:color-mix(in srgb,#fff 70%,transparent);color:var(--green);font-weight:800}.stat-copy{min-width:0;flex:1}.stat strong,.stat span{display:block}.stat strong{font-size:13px}.stat span{margin-top:3px;color:var(--muted);font-size:11px}.stat-arrow{color:var(--muted)}

.chapter-dashboard{max-width:1060px;margin:0 auto 28px;padding:22px;border:1px solid color-mix(in srgb,var(--green) 20%,var(--line));border-radius:14px;background:linear-gradient(145deg,color-mix(in srgb,var(--mint) 45%,var(--surface)),var(--surface));box-shadow:var(--shadow)}
.dashboard-heading{display:flex;align-items:end;justify-content:space-between;gap:24px}.dashboard-heading>div>span{color:var(--green);font-size:10px;font-weight:800;letter-spacing:.12em}.dashboard-heading h2{margin:5px 0 0;font-family:"Songti SC",serif;font-size:23px}.dashboard-heading p{margin:0;color:var(--muted);font-size:10px}.dashboard-heading p b{color:var(--ink);font-size:13px}.dashboard-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;margin-top:16px}.dashboard-tile{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:9px;min-height:74px;padding:10px;border:1px solid var(--line);border-radius:10px;background:var(--surface);text-align:left;cursor:pointer}.dashboard-tile:hover,.dashboard-tile.active{transform:translateY(-1px);border-color:var(--green);box-shadow:var(--shadow)}.dashboard-tile i{display:grid;place-items:center;width:30px;height:30px;border-radius:8px;background:var(--surface-soft);color:var(--green);font-size:11px;font-style:normal;font-weight:800}.dashboard-tile span,.dashboard-tile strong,.dashboard-tile small{display:block}.dashboard-tile strong{font-size:11px}.dashboard-tile small{margin-top:3px;color:var(--muted);font-size:8px;line-height:1.4}.dashboard-tile em{align-self:start;min-width:22px;padding:3px 6px;border-radius:10px;background:var(--paper);color:var(--muted);font-size:9px;font-style:normal;text-align:center}.dashboard-tile.lane-teacher i{background:#fff0d3;color:#9b6500}.dashboard-tile.lane-must_memorize i{background:var(--red-soft);color:var(--red)}.dashboard-tile.lane-trap i{background:#f7e4e2;color:var(--red)}.dashboard-tile.lane-new_material i{background:var(--memory-soft);color:var(--memory)}.dashboard-rule{margin:14px 0 0;padding-top:12px;border-top:1px dashed var(--line);color:var(--muted);font-size:9px;line-height:1.65}.dashboard-rule strong{color:var(--green)}

.study-workspace{display:block;max-width:1060px;margin:auto}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:18px;margin:0 0 10px}.section-heading h2{margin:0;font-family:"Songti SC",serif;font-size:26px;color:var(--deep)}.section-heading p{margin:4px 0 0;color:var(--muted);font-size:11px}.section-heading>span{max-width:360px;color:var(--muted);font-size:10px;text-align:right}.toolbar{display:flex;justify-content:flex-end;margin-bottom:10px}.toolbar button{padding:7px 10px;border:1px solid var(--line);border-radius:7px;background:var(--surface);font-size:10px;cursor:pointer}
.study-lanes{position:sticky;z-index:6;top:72px;display:flex;gap:7px;overflow-x:auto;margin:0 0 10px;padding:9px;border:1px solid var(--line);border-radius:10px;background:color-mix(in srgb,var(--paper) 94%,transparent);backdrop-filter:blur(12px)}.study-lanes button{display:flex;align-items:center;gap:7px;white-space:nowrap;padding:7px 10px;border:1px solid transparent;border-radius:15px;background:transparent;color:var(--muted);font-size:10px;cursor:pointer}.study-lanes button b{display:grid;place-items:center;min-width:20px;height:20px;padding:0 5px;border-radius:10px;background:var(--surface);font-size:9px}.study-lanes button:hover,.study-lanes button.active{border-color:var(--green);background:var(--mint);color:var(--deep)}
.unit-grid{display:grid;gap:12px;background:transparent}
.unit-card{display:grid;grid-template-columns:30px minmax(0,1fr);gap:14px;padding:20px;border:1px solid var(--line);border-radius:12px;background:var(--surface);box-shadow:0 3px 14px rgba(23,52,41,.035)}.unit-card[data-priority="must_memorize"]{border-left:4px solid var(--red)}.unit-card[data-priority="important"]{border-left:4px solid var(--gold)}.unit-card[data-priority="supplement"]{border-left:4px solid var(--memory)}.unit-index{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--surface-soft);color:var(--green);font-size:12px;font-weight:700}.unit-card[data-priority="must_memorize"] .unit-index{background:var(--red-soft);color:var(--red)}.unit-card[data-priority="important"] .unit-index{color:var(--gold)}.unit-card[data-priority="supplement"] .unit-index{color:var(--memory)}
.unit-body{min-width:0}.unit-head{display:flex;justify-content:space-between;gap:14px}.chapter{color:var(--green);font-size:10px;font-weight:700}.unit-card h2{margin:5px 0 0;font-size:15px;line-height:1.55}.favorite{height:28px;padding:0 8px;border:1px solid var(--line);border-radius:7px;background:transparent;color:var(--gold);font-size:9px;cursor:pointer}.summary{margin:7px 0;color:var(--muted);font-size:12px;line-height:1.6}.tags{display:flex;gap:5px;flex-wrap:wrap}.tag{padding:3px 7px;border-radius:10px;background:var(--surface-soft);color:var(--muted);font-size:9px}
.unit-signals{display:grid;gap:7px;margin:12px 0}.unit-signal{display:grid;grid-template-columns:auto minmax(0,1fr);gap:9px;align-items:start;padding:9px 11px;border-radius:8px;background:var(--paper)}.unit-signal b{padding:2px 6px;border-radius:9px;background:var(--surface);color:var(--green);font-size:9px;white-space:nowrap}.unit-signal span{font-size:11px;line-height:1.65}.unit-signal.tone-teacher{background:#fff8e9}.unit-signal.tone-teacher b{color:#9b6500}.unit-signal.tone-official{background:var(--mint)}.unit-signal.tone-trap{background:var(--red-soft)}.unit-signal.tone-trap b{color:var(--red)}
.memory-entry{margin:16px 0 12px;padding:14px;border:1px solid color-mix(in srgb,var(--green) 22%,var(--line));border-radius:10px;background:color-mix(in srgb,var(--mint) 35%,var(--surface))}.memory-entry-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}.memory-entry-head span{color:var(--green);font-size:11px;font-weight:800}.memory-entry-head small{color:var(--muted);font-size:9px}.direct-memory-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px}.direct-memory-block{padding:12px;border:1px solid var(--line);border-radius:8px;background:var(--surface)}.direct-memory-block>b{display:block;color:var(--green);font-size:10px}.direct-memory-block p{margin:6px 0 0;font-size:11px;line-height:1.7}.direct-memory-block.mnemonic{background:var(--memory-soft)}.direct-memory-block.mnemonic>strong{display:block;margin-top:7px;color:var(--memory);font-size:17px}.direct-memory-block ul{margin:7px 0 0;padding-left:18px;color:var(--muted);font-size:10px;line-height:1.65}.direct-memory-block.minimum{border-left:4px solid var(--gold)}.inline-contrasts,.inline-recalls{margin-top:12px}.inline-contrasts>h3,.inline-recalls>h3{margin:0 0 7px;font-size:11px}.inline-contrast{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin-top:7px}.inline-contrast>div{padding:9px;border-radius:7px;background:var(--surface)}.inline-contrast>div:first-child{border-left:3px solid var(--red)}.inline-contrast>div:nth-child(2){border-left:3px solid var(--green)}.inline-contrast b,.inline-contrast span{display:block}.inline-contrast b{font-size:9px}.inline-contrast span{margin-top:4px;font-size:10px;line-height:1.55}.inline-contrast small{grid-column:1/-1;color:var(--muted);font-size:9px}.inline-recall-card{margin-top:7px;padding:10px;border:1px solid var(--line);border-radius:8px;background:var(--surface)}.inline-recall-question{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:8px;align-items:start}.inline-recall-question b{color:var(--memory);font-size:9px}.inline-recall-question span{font-size:11px;line-height:1.55}.inline-recall-question small{color:var(--muted);font-size:9px}.inline-recall-card details{margin-top:7px}.inline-recall-card summary{color:var(--green);font-size:10px;cursor:pointer}.inline-recall-answer{margin-top:7px;padding:9px;border-radius:7px;background:var(--memory-soft)}.inline-recall-answer p{margin:0;font-size:11px;line-height:1.65}.inline-recall-answer>small{display:block;margin-top:5px;color:var(--muted)}
.points-title{margin-top:12px;color:var(--muted);font-size:9px;font-weight:700;letter-spacing:.06em}.points{margin-top:5px}.point{padding:7px 0;border-top:1px dashed var(--line);font-size:12px;line-height:1.65}.point-label{display:inline-block;margin-right:6px;padding:2px 6px;border-radius:9px;background:var(--surface-soft);color:var(--green);font-size:9px}.kind-teacher_must,.kind-correction{color:var(--red);font-weight:700}.kind-teacher_must .point-label,.kind-correction .point-label{color:var(--red);background:var(--red-soft)}.kind-course_fact .point-label{color:var(--gold)}.kind-agent_note{color:var(--muted)}
.source-annex{margin-top:8px;border:1px solid color-mix(in srgb,var(--memory) 28%,var(--line));border-radius:9px;background:var(--memory-soft)}.source-annex>summary{padding:11px 13px;color:var(--memory);font-size:10px;font-weight:800;cursor:pointer}.source-annex>div{padding:0 13px 12px}.source-annex .point{color:var(--ink);font-weight:400}.source-annex .point-label{color:var(--memory);background:var(--surface)}
.point.distilled{border-left:3px solid var(--memory);background:color-mix(in srgb,var(--memory-soft) 62%,var(--surface));}.point.distilled.kind-must_memorize{border-left-color:var(--red);background:var(--red-soft)}.point.distilled.kind-exam_trap,.point.distilled.kind-version_check{border-left-color:#b87713;background:#fff7e6}.distill-pending{margin:8px 0;padding:10px 12px;border-radius:8px;background:var(--surface-soft);color:var(--muted);font-size:10px}
.unit-actions{display:flex;align-items:center;justify-content:space-between;margin-top:12px}.evidence-button{padding:7px 10px;border:1px solid var(--line);border-radius:7px;background:transparent;color:var(--green);font-size:10px;cursor:pointer}.unit-actions label{color:var(--muted);font-size:10px}.unit-actions input{accent-color:var(--green)}.note{width:100%;margin-top:10px;padding:9px;border:1px solid var(--line);border-radius:7px;resize:vertical;background:var(--paper);color:var(--ink);font-size:11px;line-height:1.5}
.empty{padding:70px 24px;text-align:center}.empty strong,.empty span{display:block}.empty span{margin-top:6px;color:var(--muted);font-size:12px}

.study-rail{position:sticky;top:92px;align-self:start;display:grid;gap:14px}.memory-path,.due-card{padding:18px;border:1px solid var(--line);border-radius:12px;background:var(--surface)}.memory-path h2{margin:0;font-family:"Songti SC",serif;font-size:20px}.memory-path ol{display:grid;gap:13px;margin:16px 0;padding:0;list-style:none}.memory-path li{display:flex;align-items:center;gap:10px}.memory-path li>b{display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--surface-soft);color:var(--muted);font-size:11px}.memory-path li:first-child>b{background:var(--green);color:#fff}.memory-path li span,.memory-path li strong,.memory-path li small{display:block}.memory-path li strong{font-size:12px}.memory-path li small{margin-top:2px;color:var(--muted);font-size:10px}.memory-path>button,.due-card>button{width:100%;padding:9px 11px;border:0;border-radius:7px;background:var(--green);color:#fff;font-size:11px;cursor:pointer}.due-card{background:var(--red-soft)}.due-card strong,.due-card span{display:block}.due-card strong{color:var(--red);font-size:12px}.due-card span{margin:6px 0 11px;color:var(--muted);font-size:10px;line-height:1.5}.due-card>button{border:1px solid color-mix(in srgb,var(--red) 35%,var(--line));background:transparent;color:var(--red)}

dialog{width:min(920px,92vw);max-height:88vh;padding:0;border:0;border-radius:14px;background:var(--surface);color:var(--ink);box-shadow:0 30px 90px rgba(0,0,0,.3)}dialog::backdrop{background:rgba(4,15,10,.62);backdrop-filter:blur(4px)}.dialog-close{position:sticky;z-index:2;float:right;top:12px;margin:12px;width:34px;height:34px;border:0;border-radius:50%;background:var(--paper);font-size:20px;cursor:pointer}#dialog-content,#memory-content{padding:34px}.evidence{clear:both;padding:18px 0;border-top:1px solid var(--line)}.evidence img{display:block;max-width:100%;max-height:520px;margin:12px auto;border-radius:9px}.locator{display:inline-block;color:var(--green);font-size:11px}.raw{padding:11px;border-radius:7px;white-space:pre-wrap;background:var(--paper);color:var(--muted);font-size:12px;line-height:1.65}.analysis{line-height:1.75}.confidence{color:var(--muted);font-size:10px}
.memory-dialog{width:min(1040px,94vw)}#memory-content>h1{margin:7px 0 0;font-family:"Songti SC",serif;font-size:34px}.memory-lead{max-width:760px;margin:12px 0 24px;color:var(--muted);line-height:1.75}.memory-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.memory-step{position:relative;padding:18px;border:1px solid var(--line);border-radius:10px;background:var(--paper)}.memory-step>b{position:absolute;right:14px;top:10px;color:color-mix(in srgb,var(--memory) 30%,transparent);font-size:34px}.memory-step>span{display:block;padding-right:34px;color:var(--memory);font-size:11px;font-weight:800}.memory-step p{margin:9px 0 0;line-height:1.7}.memory-step.mnemonic{background:var(--memory-soft)}.memory-step.mnemonic>strong{display:block;margin-top:12px;color:var(--memory);font-size:20px}.memory-step ul{padding-left:19px;color:var(--muted);line-height:1.7}.contrast-card{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:12px 0;border-top:1px solid var(--line)}.contrast-card>div{padding:12px;background:var(--paper)}.contrast-card>div:first-child{border-left:3px solid var(--red)}.contrast-card>div:nth-child(2){border-left:3px solid var(--green)}.contrast-card small{grid-column:1/-1;color:var(--muted)}.recall-card{margin:10px 0;padding:18px;border:1px solid var(--line);border-radius:10px}.recall-meta{display:flex;justify-content:space-between}.recall-meta span{color:var(--memory);font-size:10px}.recall-meta small{color:var(--muted)}.recall-card h3{line-height:1.55}.hint-button,.recall-reveal,.rating button{padding:8px 10px;border:1px solid var(--line);border-radius:7px;background:var(--paper);cursor:pointer}.recall-reveal{margin-left:6px;background:var(--memory);color:#fff}.recall-hint,.recall-answer{margin-top:12px;padding:11px;background:var(--memory-soft)}.rating{display:flex;align-items:center;gap:7px;flex-wrap:wrap;margin-top:12px;padding-top:10px;border-top:1px solid var(--line)}.rating span{margin-right:auto;color:var(--muted);font-size:11px}
.recall-card.review-target{border-color:var(--memory);box-shadow:0 0 0 3px color-mix(in srgb,var(--memory) 16%,transparent)}.rating-result{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:4px 12px;margin-top:12px;padding:12px;border-radius:8px;background:var(--surface)}.rating-result strong{color:var(--green);font-size:12px}.rating-result span{grid-column:1;color:var(--muted);font-size:10px;line-height:1.55}.rating-result button{grid-column:2;grid-row:1/3;padding:8px 10px;border:0;border-radius:7px;background:var(--green);color:#fff;font-size:10px;cursor:pointer}

.review-view{max-width:1080px;margin:auto;scroll-margin-top:82px}.review-hero{display:flex;align-items:end;justify-content:space-between;gap:30px;padding:22px 0 26px;border-bottom:1px solid var(--line)}.review-hero .eyebrow{color:var(--green);font-size:11px;font-weight:700}.review-hero h1{margin:8px 0 0;font-family:"Songti SC",serif;font-size:clamp(30px,4vw,46px);line-height:1.2}.review-hero p{max-width:720px;margin:12px 0 0;color:var(--muted);font-size:13px;line-height:1.75}.review-today{min-width:176px;padding:18px;border-radius:12px;background:var(--deep);color:#fff}.review-today strong,.review-today span,.review-today small{display:block}.review-today strong{font-size:38px}.review-today span{margin-top:2px;font-weight:700}.review-today small{margin-top:8px;color:#c9d9d1;font-size:10px}.review-science{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:20px 0}.review-science>div{padding:16px;border:1px solid var(--line);border-radius:10px;background:var(--surface)}.review-science>div:nth-child(1){border-top:3px solid var(--red)}.review-science>div:nth-child(2){border-top:3px solid var(--gold)}.review-science>div:nth-child(3){border-top:3px solid var(--green)}.review-science b,.review-science strong,.review-science span{display:block}.review-science b{color:var(--muted);font-size:10px}.review-science strong{margin-top:6px;font-size:14px;line-height:1.4}.review-science span{margin-top:6px;color:var(--muted);font-size:10px;line-height:1.55}.review-science>p{grid-column:1/-1;margin:0;padding:11px 14px;border-radius:8px;background:var(--memory-soft);color:var(--muted);font-size:10px;line-height:1.6}.review-filters{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:7px;margin:18px 0}.review-filters button{display:flex;align-items:center;justify-content:space-between;gap:6px;padding:10px;border:1px solid var(--line);border-radius:9px;background:var(--surface);color:var(--muted);font-size:10px;cursor:pointer}.review-filters button.active{border-color:var(--green);background:var(--mint);color:var(--deep)}.review-filters strong{display:grid;place-items:center;min-width:22px;height:22px;border-radius:11px;background:var(--surface-soft);font-size:10px}.review-list{display:grid;gap:10px}.review-item{padding:18px;border:1px solid var(--line);border-left:4px solid var(--memory);border-radius:10px;background:var(--surface)}.review-item.category-forgotten{border-left-color:var(--red)}.review-item.category-hard{border-left-color:var(--gold)}.review-item.category-mastered{border-left-color:var(--green)}.review-item.is-due{box-shadow:var(--shadow)}.review-item-meta{display:flex;align-items:center;justify-content:space-between;gap:12px}.review-item-meta span{color:var(--green);font-size:10px}.review-item-meta em{padding:3px 8px;border-radius:10px;background:var(--surface-soft);color:var(--muted);font-size:9px;font-style:normal}.review-item.is-due .review-item-meta em{background:var(--red-soft);color:var(--red)}.review-item h2{margin:9px 0 0;font-size:17px;line-height:1.55}.review-item>p{margin:5px 0 12px;color:var(--muted);font-size:11px}.review-item-plan{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.review-item-plan span{padding:9px;border-radius:7px;background:var(--paper);color:var(--muted);font-size:10px}.review-item-plan b{display:block;margin-bottom:3px;color:var(--ink);font-size:9px}.review-item>button,.review-empty button{margin-top:12px;padding:9px 12px;border:0;border-radius:7px;background:var(--green);color:#fff;font-size:11px;cursor:pointer}.review-empty{padding:60px 20px;text-align:center;border:1px dashed var(--line);border-radius:12px;background:var(--surface)}.review-empty strong,.review-empty span{display:block}.review-empty strong{font-family:"Songti SC",serif;font-size:22px}.review-empty span{max-width:560px;margin:8px auto 0;color:var(--muted);font-size:11px;line-height:1.7}
.review-panel{max-width:none;margin:0 0 26px;padding:18px 20px 22px;border:1px solid color-mix(in srgb,var(--memory) 28%,var(--line));border-radius:14px;background:color-mix(in srgb,var(--memory-soft) 46%,var(--surface));box-shadow:var(--shadow)}.review-panel-bar{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:0 0 14px;border-bottom:1px solid var(--line)}.review-panel-bar strong,.review-panel-bar span{display:block}.review-panel-bar strong{color:var(--memory);font-size:12px}.review-panel-bar span{margin-top:3px;color:var(--muted);font-size:10px}.review-panel-bar button{padding:9px 12px;border:0;border-radius:8px;background:var(--green);color:#fff;font-size:10px;cursor:pointer}.review-panel .review-hero{padding-top:20px}

.practice-view{max-width:1000px;margin:auto}.practice-hero{display:flex;align-items:end;justify-content:space-between;gap:24px;padding:12px 0 24px;border-bottom:1px solid var(--line)}.practice-hero h1{margin:6px 0 0;font-family:"Songti SC",serif;font-size:40px}.practice-hero p{max-width:620px;color:var(--muted);line-height:1.7}.practice-summary{display:flex;gap:8px}.practice-summary>div{min-width:96px;padding:12px;border:1px solid var(--line);border-radius:9px;background:var(--surface)}.practice-summary strong,.practice-summary span{display:block}.practice-summary strong{font-size:20px}.practice-summary span{color:var(--muted);font-size:10px}.practice-filters{display:flex;gap:6px;flex-wrap:wrap;margin:18px 0}.practice-filters button{padding:7px 10px;border:1px solid var(--line);border-radius:15px;background:var(--surface);color:var(--muted);font-size:11px;cursor:pointer}.practice-filters button.active{border-color:var(--green);background:var(--mint);color:var(--deep)}.practice-filters .practice-reset{margin-left:auto}.practice-card{padding:30px;border:1px solid var(--line);border-top:3px solid var(--green);border-radius:12px;background:var(--surface);box-shadow:var(--shadow)}.practice-card-meta{display:flex;justify-content:space-between;color:var(--green);font-size:11px}.practice-progress{height:4px;margin:12px 0 24px;background:var(--paper)}.practice-progress i{display:block;height:100%;background:var(--gold)}.practice-card h2{font-size:22px;line-height:1.55}.practice-hint{color:var(--muted);font-size:11px}.practice-options{display:grid;gap:9px;margin-top:20px;padding:0;border:0}.practice-option{display:grid;grid-template-columns:auto auto 1fr auto;align-items:center;gap:10px;padding:12px;border:1px solid var(--line);border-radius:8px;background:var(--paper);cursor:pointer}.practice-option:has(input:checked){border-color:var(--green);background:var(--mint)}.practice-option>b{display:grid;place-items:center;width:26px;height:26px;border:1px solid var(--line);border-radius:50%;font-size:11px}.practice-option>i{color:var(--muted);font-size:10px;font-style:normal}.practice-option.is-correct{border-color:var(--green);background:var(--mint)}.practice-option.is-wrong{border-color:var(--red);background:var(--red-soft)}.practice-validation{color:var(--red);font-weight:700}.practice-feedback{margin-top:18px;padding:16px;border-left:3px solid var(--green);background:var(--memory-soft)}.answered-wrong .practice-feedback{border-left-color:var(--red)}.practice-feedback p{line-height:1.7}.practice-feedback small{color:var(--muted)}.practice-actions{display:grid;grid-template-columns:1fr auto 1fr;gap:9px;margin-top:20px}.practice-actions button{padding:9px 12px;border:1px solid var(--line);border-radius:7px;background:var(--paper);cursor:pointer}.practice-actions button:last-child{justify-self:end}.practice-actions .practice-submit{min-width:140px;background:var(--green);color:#fff}.practice-actions button:disabled{opacity:.35}.practice-empty{padding:60px;text-align:center;border:1px dashed var(--line);background:var(--surface)}
.paper-view{max-width:1080px;margin:auto}.paper-hero{padding:28px 0 24px;border-bottom:1px solid var(--line)}.paper-hero .eyebrow{color:var(--green);font-size:11px;font-weight:800}.paper-hero h1{margin:8px 0 0;font-family:"Songti SC",serif;font-size:42px}.paper-hero>p{max-width:760px;margin:12px 0 0;color:var(--muted);font-size:13px;line-height:1.75}.paper-notice{display:flex;gap:12px;margin-top:18px;padding:12px 14px;border-left:4px solid var(--gold);background:var(--memory-soft)}.paper-notice b{white-space:nowrap;color:var(--gold);font-size:11px}.paper-notice span{font-size:11px;line-height:1.6}.paper-year-nav{position:sticky;top:72px;z-index:5;display:flex;gap:7px;overflow:auto;padding:12px 0;background:color-mix(in srgb,var(--paper) 94%,transparent);backdrop-filter:blur(10px)}.paper-year-nav a{padding:6px 10px;border:1px solid var(--line);border-radius:14px;background:var(--surface);color:var(--muted);font-size:10px;text-decoration:none}.paper-year-nav a:hover{border-color:var(--green);color:var(--green)}.paper-year{scroll-margin-top:125px;padding:18px 0}.paper-year-heading{display:flex;align-items:end;justify-content:space-between;margin-bottom:10px}.paper-year-heading h2{margin:0;font-family:"Songti SC",serif;font-size:26px}.paper-year-heading span{color:var(--muted);font-size:10px}.paper-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.paper-card{display:flex;flex-direction:column;min-height:168px;padding:16px;border:1px solid var(--line);border-radius:10px;background:var(--surface)}.paper-card-meta{display:flex;align-items:center;justify-content:space-between}.paper-card-meta span{color:var(--green);font-size:10px;font-weight:700}.paper-card-meta em{padding:3px 6px;border-radius:10px;background:var(--surface-soft);color:var(--muted);font-size:8px;font-style:normal}.paper-card h3{margin:12px 0 0;font-size:15px;line-height:1.55}.paper-card p{margin:7px 0 12px;color:var(--muted);font-size:10px}.paper-card>a{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding:9px 11px;border-radius:7px;background:var(--deep);color:#fff;font-size:10px;text-decoration:none}.paper-card>a span{font-size:14px}
.paper-mode-tabs{display:flex;gap:8px;margin:18px 0}.paper-mode-tabs button{display:flex;align-items:center;gap:8px;padding:9px 13px;border:1px solid var(--line);border-radius:18px;background:var(--surface);color:var(--muted);cursor:pointer}.paper-mode-tabs button.active{border-color:var(--green);background:var(--mint);color:var(--deep)}.paper-mode-tabs b{padding:2px 6px;border-radius:10px;background:var(--surface-soft);font-size:9px}.paper-online-intro{padding:8px 0 30px}.paper-online-intro h2{margin:7px 0;font-family:"Songti SC",serif;font-size:30px}.paper-online-intro>div>p{max-width:760px;color:var(--muted);line-height:1.7}.paper-online-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:18px}.paper-online-card{display:flex;flex-direction:column;align-items:flex-start;min-height:180px;padding:20px;border:1px solid var(--line);border-radius:12px;background:var(--surface);text-align:left;cursor:pointer}.paper-online-card:hover{border-color:var(--green);box-shadow:var(--shadow)}.paper-online-card>span{color:var(--green);font-size:10px;font-weight:800}.paper-online-card>strong{margin-top:12px;font-size:17px;line-height:1.5}.paper-online-card>small{margin-top:8px;color:var(--muted)}.paper-online-card>em{margin-top:auto;color:var(--green);font-size:11px;font-style:normal;font-weight:700}.paper-practice-bar{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:14px;margin:10px 0 18px;padding:12px;border:1px solid var(--line);border-radius:10px;background:var(--surface)}.paper-practice-bar>button,.paper-practice-bar>a{padding:8px 10px;border:1px solid var(--line);border-radius:7px;background:var(--paper);color:var(--deep);font-size:10px;text-decoration:none;cursor:pointer}.paper-practice-bar>span{min-width:0}.paper-practice-bar strong,.paper-practice-bar small{display:block}.paper-practice-bar strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.paper-practice-bar small{margin-top:3px;color:var(--muted);font-size:9px}.paper-question-card{margin-bottom:32px}
.answer-overview{padding:22px;border:1px solid var(--line);border-radius:12px;background:var(--surface);box-shadow:var(--shadow)}
.answer-overview-head{display:flex;align-items:end;justify-content:space-between;gap:24px;padding-bottom:17px;border-bottom:1px solid var(--line)}
.answer-overview-head .eyebrow{color:var(--green);font-size:10px;font-weight:800}
.answer-overview-head h2{margin:5px 0 0;font-family:"Songti SC",serif;font-size:28px}
.answer-overview-head p{margin:7px 0 0;color:var(--muted);font-size:11px;line-height:1.6}
.answer-overview-stats{display:grid;grid-template-columns:repeat(4,minmax(62px,1fr));gap:7px}
.answer-overview-stats span{min-width:68px;padding:9px 10px;border:1px solid var(--line);border-radius:8px;color:var(--muted);font-size:9px;background:var(--paper)}
.answer-overview-stats b{display:block;margin-bottom:2px;color:var(--ink);font-size:18px}
.answer-overview-stats .is-correct b{color:var(--green)}.answer-overview-stats .is-wrong b{color:var(--red)}
.answer-overview-legend{display:flex;gap:14px;flex-wrap:wrap;margin:15px 0 12px;color:var(--muted);font-size:9px}
.answer-overview-legend span{display:flex;align-items:center;gap:5px}.answer-overview-legend span:before{content:"";width:9px;height:9px;border:1px solid var(--line);border-radius:3px;background:var(--paper)}
.answer-overview-legend .is-correct:before{border-color:var(--green);background:var(--mint)}.answer-overview-legend .is-wrong:before{border-color:var(--red);background:var(--red-soft)}.answer-overview-legend .is-current:before{box-shadow:0 0 0 2px var(--gold)}
.answer-overview-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(42px,1fr));gap:7px}
.answer-overview-number{min-height:40px;padding:6px 3px;border:1px solid var(--line);border-radius:7px;background:var(--paper);color:var(--muted);font-size:11px;font-weight:700;cursor:pointer}
.answer-overview-number:hover{transform:translateY(-1px);border-color:var(--green)}
.answer-overview-number.is-correct{border-color:color-mix(in srgb,var(--green) 68%,var(--line));background:var(--mint);color:var(--green)}
.answer-overview-number.is-wrong{border-color:color-mix(in srgb,var(--red) 68%,var(--line));background:var(--red-soft);color:var(--red)}
.answer-overview-number.is-current{box-shadow:0 0 0 2px var(--gold)}
.paper-practice-bar>button.active{border-color:var(--memory);background:var(--memory-soft);color:var(--memory)}
.external-library-entry{width:100%;display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:8px;padding:11px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--deep);text-align:left;cursor:pointer}.external-library-entry:hover,.external-library-entry.active{border-color:var(--memory);background:var(--memory-soft)}.external-library-entry>span{display:grid;grid-template-columns:28px 1fr;align-items:center;gap:2px 8px}.external-library-entry b{grid-row:1/3;display:grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--memory);color:#fff}.external-library-entry strong{font-size:11px}.external-library-entry small{color:var(--muted);font-size:8px}.external-library-entry em{white-space:nowrap;color:var(--memory);font-size:9px;font-style:normal}
.external-hero .paper-notice{border-left-color:var(--memory)}.external-subject-tabs{display:flex;gap:7px;overflow:auto;margin:16px 0;padding-bottom:3px}.external-subject-tabs button{white-space:nowrap;padding:8px 11px;border:1px solid var(--line);border-radius:16px;background:var(--surface);color:var(--muted);cursor:pointer}.external-subject-tabs button.active{border-color:var(--memory);background:var(--memory-soft);color:var(--memory)}.external-subject-tabs b{font-size:9px}.external-evidence-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:12px 0}.external-evidence-grid span{padding:9px;border-radius:7px;background:var(--paper);font-size:10px;line-height:1.5}.external-evidence-grid b{display:block;margin-bottom:3px;color:var(--memory);font-size:9px}
.external-status-tabs{display:flex;flex-wrap:wrap;gap:7px;margin:-4px 0 12px}.external-status-tabs button{padding:8px 11px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--muted);cursor:pointer}.external-status-tabs button.active{border-color:var(--green);background:var(--mint);color:var(--deep)}.external-status-tabs button[data-external-status="wrong"].active{border-color:var(--red);background:var(--red-soft);color:var(--red)}.external-status-tabs b{margin-left:3px;font-size:9px}.external-question-card .practice-card-meta small{white-space:nowrap}.practice-empty p{color:var(--muted);font-size:11px}
.external-rapid-banner{display:flex;align-items:center;justify-content:space-between;gap:18px;margin:12px 0;padding:16px 18px;border:1px solid color-mix(in srgb,var(--red) 32%,var(--line));border-radius:11px;background:linear-gradient(135deg,var(--red-soft),var(--surface))}.external-rapid-banner.active{border-color:color-mix(in srgb,var(--memory) 45%,var(--line));background:linear-gradient(135deg,var(--memory-soft),var(--surface))}.external-rapid-banner>div{display:grid;gap:4px}.external-rapid-banner span{color:var(--red);font-size:10px;font-weight:800}.external-rapid-banner.active span{color:var(--memory)}.external-rapid-banner strong{font-size:15px}.external-rapid-banner small{color:var(--muted);font-size:10px;line-height:1.5}.external-rapid-banner button,.external-rapid-summary-actions button{flex:0 0 auto;padding:10px 14px;border:0;border-radius:8px;background:var(--red);color:#fff;font-weight:800;cursor:pointer}.external-rapid-banner.active button{background:var(--memory)}.external-rapid-banner button:disabled,.external-rapid-summary-actions button:disabled{opacity:.4;cursor:not-allowed}.external-rapid-summary{padding:28px;border:1px solid var(--line);border-top:4px solid var(--memory);border-radius:12px;background:var(--surface);box-shadow:var(--shadow)}.external-rapid-summary h2{margin:8px 0;font-family:"Songti SC",serif;font-size:30px}.external-rapid-summary>p{color:var(--muted);line-height:1.7}.external-rapid-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:9px;margin:20px 0}.external-rapid-stats span{padding:13px;border-radius:8px;background:var(--paper);color:var(--muted);font-size:10px}.external-rapid-stats b{display:block;margin-bottom:4px;color:var(--deep);font-size:22px}.external-rapid-stats .is-correct b{color:var(--green)}.external-rapid-stats .is-wrong b{color:var(--red)}.external-rapid-summary-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}.external-rapid-summary-actions button:nth-child(2){background:var(--memory)}.external-rapid-summary-actions button:last-child{border:1px solid var(--line);background:var(--paper);color:var(--deep)}
.mobile-bottom{display:none}

@media(max-width:1180px){.dashboard-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:1050px){.hero-progress{width:220px}.review-filters{grid-template-columns:repeat(3,1fr)}}
@media(max-width:800px){
  .app-shell{display:block}.sidebar{position:fixed;z-index:30;inset:0 auto 0 0;width:min(320px,88vw);height:100vh;transform:translateX(-105%);transition:transform .2s;box-shadow:0 0 40px rgba(0,0,0,.18)}body.sidebar-open .sidebar{transform:translateX(0)}body.sidebar-open:after{content:"";position:fixed;z-index:25;inset:0;background:rgba(0,0,0,.28)}
  main{padding:0 16px 84px}.topbar{height:58px}.mobile-menu{display:inline-flex;padding:7px 9px;border:1px solid var(--line);border-radius:7px;background:var(--surface);font-size:10px}.breadcrumb{min-width:0;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.search{display:none}.actions #theme,.actions #export{display:none}.sync-status{max-width:78px;overflow:hidden;text-overflow:ellipsis}
  .hero{display:block;min-height:0;padding:16px 18px}.hero .eyebrow{padding:0;background:transparent}.hero h1{font-size:24px}.hero p{display:none}.hero-progress{width:100%;margin-top:12px}.hero-progress>div:first-child span{display:none}.hero-progress button{margin-top:10px}
  .stats{gap:8px;margin:12px 0}.stat{display:grid;place-items:center;gap:3px;min-height:64px;padding:8px;text-align:center}.stat-icon{width:auto;height:auto;background:transparent}.stat-copy strong{font-size:11px}.stat-copy span{font-size:9px}.stat-arrow{display:none}
  .chapter-dashboard{margin:0 0 18px;padding:15px}.dashboard-heading{display:block}.dashboard-heading h2{font-size:19px;line-height:1.4}.dashboard-heading p{margin-top:8px}.dashboard-grid{grid-template-columns:1fr 1fr}.dashboard-tile{min-height:65px}.dashboard-tile:first-child{grid-column:1/-1}.dashboard-rule{font-size:10px}.study-lanes{top:58px;margin-left:-4px;margin-right:-4px}.study-lanes button{padding:7px 9px}
  .section-heading{margin-top:8px}.section-heading h2{font-size:22px}.section-heading>span{font-size:9px}.toolbar{margin-bottom:8px}.unit-card{grid-template-columns:1fr;padding:16px}.unit-index{display:none}.unit-card h2{font-size:16px}.points-title,.points,.note{display:block}.point{font-size:13px;line-height:1.75}.note{font-size:12px}.unit-actions{margin-top:10px}.unit-grid{border-radius:10px}.direct-memory-grid,.inline-contrast{grid-template-columns:1fr}.inline-contrast small{grid-column:1}.inline-recall-question{grid-template-columns:auto 1fr}.inline-recall-question small{grid-column:2}.memory-entry{padding:11px}.unit-signal{grid-template-columns:1fr}.unit-signal b{justify-self:start}
  .mobile-bottom{position:fixed;z-index:18;left:0;right:0;bottom:0;display:flex;justify-content:space-around;height:62px;padding-bottom:env(safe-area-inset-bottom);border-top:1px solid var(--line);background:color-mix(in srgb,var(--surface) 96%,transparent);backdrop-filter:blur(12px)}.mobile-bottom button{flex:1;border:0;background:transparent;color:var(--muted);font-size:10px}.mobile-bottom button.active{color:var(--green);font-weight:700}
  .paper-hero{padding-top:14px}.paper-hero h1{font-size:31px}.paper-notice{display:block}.paper-notice span{display:block;margin-top:5px}.paper-year-nav{top:58px}.paper-grid,.paper-online-grid{grid-template-columns:1fr}.paper-card{min-height:150px}.paper-year{scroll-margin-top:110px}.paper-mode-tabs{position:sticky;z-index:5;top:58px;padding:8px 0;background:color-mix(in srgb,var(--paper) 94%,transparent)}.paper-mode-tabs button{flex:1;justify-content:center}.paper-practice-bar{grid-template-columns:1fr auto}.paper-practice-bar>span{grid-column:1/-1;grid-row:1}.paper-practice-bar>button{grid-column:1}.paper-practice-bar>a{grid-column:2}.paper-online-card{min-height:155px}
  #dialog-content,#memory-content{padding:24px 17px}.memory-grid,.contrast-card{grid-template-columns:1fr}.contrast-card small{grid-column:auto}.rating-result{grid-template-columns:1fr}.rating-result span,.rating-result button{grid-column:1;grid-row:auto}.review-view{scroll-margin-top:66px}.review-panel{padding:14px;margin-bottom:18px}.review-panel-bar{display:block}.review-panel-bar button{width:100%;margin-top:10px}.review-hero{display:block;padding-top:8px}.review-today{margin-top:14px}.review-science{grid-template-columns:1fr}.review-science>p{grid-column:auto}.review-filters{display:flex;overflow-x:auto;padding-bottom:5px}.review-filters button{min-width:118px}.review-item{padding:15px}.review-item-plan{grid-template-columns:1fr}.practice-hero{display:block}.practice-summary{display:grid;grid-template-columns:repeat(3,1fr);margin-top:14px}.practice-summary>div{min-width:0}.practice-card{padding:20px}.practice-option{grid-template-columns:auto auto 1fr}.practice-option>i{grid-column:3}.practice-actions{grid-template-columns:1fr 1fr}.practice-actions .practice-submit{grid-column:1/-1;grid-row:1}.practice-actions button:last-child{justify-self:stretch}
}

.practice-filters .practice-reset{margin-left:0}
.paper-practice-bar{grid-template-columns:auto auto minmax(0,1fr) auto}

@media(max-width:800px){
  .answer-overview{padding:15px}
  .answer-overview-head{display:block}
  .answer-overview-stats{grid-template-columns:repeat(4,1fr);margin-top:14px}
  .answer-overview-stats span{min-width:0;padding:8px 5px;text-align:center}
  .answer-overview-grid{grid-template-columns:repeat(6,1fr);gap:6px}
  .answer-overview-number{min-height:38px}
  .answer-overview-legend{gap:10px}
  .paper-practice-bar{grid-template-columns:1fr 1fr}
  .paper-practice-bar>span{grid-column:1/-1;grid-row:1}
  .paper-practice-bar>button{grid-column:auto}
  .paper-practice-bar>a{grid-column:1/-1;text-align:center}
  .external-evidence-grid{grid-template-columns:1fr}.external-subject-tabs{position:sticky;top:58px;z-index:4;padding:8px 0;background:color-mix(in srgb,var(--paper) 94%,transparent)}.external-rapid-banner{display:block;padding:14px}.external-rapid-banner button{width:100%;margin-top:12px}.external-rapid-stats{grid-template-columns:repeat(2,1fr)}.external-rapid-summary{padding:20px}.external-rapid-summary-actions{display:grid}.external-rapid-summary-actions button{width:100%}
}