:root{
  --bg:#eee9df; --paper:#f8f5ef; --paper-2:#f1ede5; --ink:#1a2430; --muted:#727a7f;
  --line:#d8d1c5; --line-strong:#b9b0a2; --red:#9b2d30; --red-soft:#e8d3d0;
  --blue:#315b78; --blue-soft:#d8e3e8; --gold:#9b762b; --gold-soft:#ece3cd;
  --green:#3e6d5a; --green-soft:#d9e5dc; --purple:#6b5578; --purple-soft:#e2dbe7;
  --shadow:0 8px 28px rgba(40,34,27,.06); --radius:13px;
}
*{box-sizing:border-box} html,body{margin:0;height:100%;font-family:"Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;background:var(--bg);color:var(--ink)}
button,input{font:inherit;color:inherit} button{cursor:pointer}.hidden{display:none!important}
body{overflow:hidden;background-image:radial-gradient(rgba(74,66,56,.045) .7px,transparent .7px);background-size:9px 9px}
.app-shell{height:100vh;display:grid;grid-template-rows:68px 48px minmax(0,1fr) 76px;gap:0}
.topbar{display:grid;grid-template-columns:330px minmax(320px,680px) 1fr;align-items:center;padding:0 22px;border-bottom:1px solid var(--line);background:rgba(248,245,239,.92);backdrop-filter:blur(12px);z-index:10}
.brand-wrap{display:flex;align-items:center;gap:12px}.brand-mark{width:38px;height:38px;border:1px solid var(--red);color:var(--red);display:grid;place-items:center;font-family:serif;font-size:23px}.brand-title{font-weight:800;letter-spacing:.08em;font-size:18px}.brand-sub{font-size:9px;letter-spacing:.15em;color:var(--muted);margin-top:2px}
.search-wrap{position:relative;display:flex;align-items:center;border:1px solid var(--line-strong);background:#fffdfa;height:38px;border-radius:8px;padding:0 10px;box-shadow:inset 0 1px 0 #fff}.search-icon{font-size:22px;color:var(--muted);margin-right:7px}.search-wrap input{width:100%;border:0;outline:0;background:transparent;font-size:13px}.search-kbd{font-size:10px;border:1px solid var(--line);border-radius:4px;padding:2px 5px;color:var(--muted);white-space:nowrap}.search-results{position:absolute;top:44px;left:0;right:0;background:#fffdfa;border:1px solid var(--line-strong);box-shadow:var(--shadow);border-radius:9px;max-height:420px;overflow:auto;z-index:30;padding:6px}.search-item{display:grid;grid-template-columns:8px 1fr auto;gap:9px;align-items:center;padding:9px 10px;border-radius:6px}.search-item:hover{background:var(--paper-2)}.search-item .dot{width:7px;height:7px;border-radius:50%}.search-item b{font-size:13px}.search-item small{color:var(--muted);font-size:10px}.search-item em{font-style:normal;font-size:10px;color:var(--muted)}
.top-actions{justify-self:end;display:flex;gap:7px}.ghost-btn,.icon-btn{border:1px solid var(--line);background:transparent;border-radius:7px;padding:7px 10px;font-size:12px}.ghost-btn:hover,.icon-btn:hover{background:#fff}.ghost-btn.active{background:var(--ink);color:#fff;border-color:var(--ink)}
.modebar{display:flex;align-items:center;justify-content:space-between;padding:0 22px;background:var(--paper);border-bottom:1px solid var(--line)}.view-tabs{display:flex;height:100%;gap:2px}.view-tab{position:relative;border:0;background:transparent;padding:0 17px;font-size:12px;color:var(--muted)}.view-tab.active{color:var(--ink);font-weight:700}.view-tab.active:after{content:"";position:absolute;left:15px;right:15px;bottom:0;height:2px;background:var(--red)}.modebar-right{display:flex;gap:7px;align-items:center;font-size:10px;color:var(--muted)}.status-dot{width:6px;height:6px;background:var(--green);border-radius:50%;box-shadow:0 0 0 3px var(--green-soft)}
.workspace{min-height:0;display:grid;grid-template-columns:232px minmax(0,1fr) 310px;gap:10px;padding:10px}.panel{background:rgba(248,245,239,.94);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);min-height:0}.sidebar,.detail{display:flex;flex-direction:column;overflow:hidden}.panel-head{height:44px;display:flex;align-items:center;justify-content:space-between;padding:0 13px;border-bottom:1px solid var(--line);font-size:11px;font-weight:800;letter-spacing:.1em;text-transform:uppercase}.icon-btn{padding:3px 7px}.nav-tree{overflow:auto;padding:10px;flex:1}.nav-section{margin-bottom:13px}.nav-section-title{font-size:10px;color:var(--muted);letter-spacing:.12em;margin:4px 6px 6px}.nav-item{display:flex;align-items:center;gap:8px;padding:7px 8px;border-radius:6px;font-size:12px}.nav-item:hover{background:var(--paper-2)}.nav-item.active{background:var(--red-soft);color:#6e2023;font-weight:700}.nav-dot{width:7px;height:7px;border-radius:2px;flex:0 0 auto}.nav-count{margin-left:auto;font-size:9px;color:var(--muted)}
.coverage-card{border-top:1px solid var(--line);padding:12px;background:var(--paper-2)}.coverage-title{font-size:10px;font-weight:800;letter-spacing:.1em;margin-bottom:8px}.coverage-row{display:flex;justify-content:space-between;font-size:9px;margin:6px 0 3px}.coverage-bar{height:3px;background:#ded8ce}.coverage-bar i{display:block;height:100%;background:var(--ink)}.coverage-note{font-size:8px;line-height:1.5;color:var(--muted);margin-top:8px}
.stage{display:flex;flex-direction:column;overflow:hidden}.stage-head{height:66px;padding:11px 17px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.stage-head h1{font-family:Georgia,"Songti SC",serif;font-size:23px;font-weight:600;margin:2px 0 0}.eyebrow{font-size:9px;letter-spacing:.16em;color:var(--red);font-weight:800}.stage-tools{display:flex;gap:6px}.stage-chip{border:1px solid var(--line);background:transparent;border-radius:20px;padding:5px 9px;font-size:9px}.stage-chip.active{background:var(--ink);color:#fff}.stage-content{overflow:auto;flex:1;position:relative;padding:16px}
.detail-content{padding:15px;overflow:auto;flex:1}.detail-empty{height:100%;display:grid;place-items:center;text-align:center;color:var(--muted);font-size:12px;line-height:1.7}.node-type{display:inline-flex;align-items:center;gap:6px;font-size:9px;font-weight:800;letter-spacing:.12em;color:var(--muted)}.type-swatch{width:7px;height:7px;border-radius:50%}.detail-title{font-family:Georgia,"Songti SC",serif;font-size:23px;line-height:1.3;margin:9px 0 5px}.detail-date{font-size:11px;color:var(--muted);margin-bottom:10px}.importance{display:flex;gap:2px;margin:8px 0 14px}.star{font-size:10px;color:#b5ac9d}.star.on{color:var(--gold)}.detail-summary{font-size:12px;line-height:1.8;padding:11px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.detail-section{margin-top:16px}.detail-section h3{font-size:9px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin:0 0 8px}.tag-list{display:flex;flex-wrap:wrap;gap:5px}.tag{border:1px solid var(--line);background:#fffaf2;border-radius:15px;padding:4px 8px;font-size:9px}.claim-card{border-left:2px solid var(--red);padding:6px 0 6px 10px;margin:7px 0;font-size:11px;line-height:1.6}.relation-item{display:flex;gap:7px;align-items:flex-start;padding:6px 0;border-bottom:1px dashed var(--line);font-size:10px}.relation-item button{border:0;background:none;padding:0;color:var(--blue);text-align:left}.rel-label{color:var(--muted);width:52px;flex:0 0 52px}.source-card{padding:8px;background:var(--paper-2);border-radius:6px;margin:6px 0;font-size:9px;line-height:1.5}.source-card a{color:var(--blue);text-decoration:none}.source-grade{display:inline-block;border:1px solid var(--line-strong);padding:1px 4px;margin-right:5px;font-weight:800}
.time-dock{display:grid;grid-template-columns:95px minmax(0,1fr);grid-template-rows:38px 22px;align-items:center;padding:5px 22px 6px;background:var(--paper);border-top:1px solid var(--line);z-index:5}.time-dock-label{grid-row:1/3;align-self:center}.time-dock-label span{display:block;font-size:9px;color:var(--muted);letter-spacing:.1em}.time-dock-label b{font-family:Georgia,serif;font-size:21px;font-weight:500}.time-dock input{width:100%;accent-color:var(--red)}.epoch-labels{display:flex;justify-content:space-between;font-size:8px;color:var(--muted)}.epoch-labels span{cursor:pointer}.epoch-labels span:hover{color:var(--red)}
/* timeline */
.timeline{min-width:920px}.timeline-ruler{display:grid;grid-template-columns:110px 1fr;align-items:end;margin-bottom:4px}.timeline-years{position:relative;height:30px;border-bottom:1px solid var(--line-strong)}.year-tick{position:absolute;bottom:0;transform:translateX(-50%);font-size:8px;color:var(--muted);padding-bottom:4px}.year-tick:after{content:"";position:absolute;left:50%;bottom:-4px;height:4px;border-left:1px solid var(--line-strong)}.track{display:grid;grid-template-columns:110px 1fr;min-height:64px;border-bottom:1px solid var(--line)}.track-name{padding:14px 10px 0 3px;font-size:10px;color:var(--muted);letter-spacing:.08em}.track-lane{position:relative;min-height:64px;background-image:linear-gradient(90deg,rgba(80,70,55,.045) 1px,transparent 1px);background-size:calc(100% / 10) 100%}.timeline-node{position:absolute;top:13px;transform:translateX(-50%);border:0;background:transparent;width:82px;text-align:center;padding:0}.timeline-node .pin{width:9px;height:9px;border-radius:50%;display:block;margin:0 auto 5px;border:2px solid var(--paper);box-shadow:0 0 0 1px currentColor}.timeline-node span:last-child{display:block;font-size:8px;line-height:1.25;background:rgba(248,245,239,.88);padding:2px}.timeline-node:hover span:last-child{font-weight:800}.future-node{opacity:.5}.future-node .pin{border-radius:2px}.time-mask{position:absolute;top:0;bottom:0;right:0;background:rgba(238,233,223,.75);pointer-events:none;border-left:1px dashed var(--red)}
/* matrix */
.matrix-wrap{min-width:820px}.matrix{display:grid;grid-template-columns:100px repeat(7,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.matrix-cell{min-height:67px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:6px}.matrix-head{min-height:32px;background:var(--paper-2);font-size:9px;font-weight:800;display:grid;place-items:center}.matrix-rowhead{font-size:11px;font-family:Georgia,serif;background:var(--paper-2);display:flex;align-items:center;padding-left:10px}.meeting-card{width:100%;height:100%;border:0;border-radius:5px;background:#fffdfa;text-align:left;padding:5px;position:relative}.meeting-card:hover{outline:1px solid var(--line-strong)}.meeting-card b{display:block;font-size:9px;line-height:1.3}.meeting-card small{font-size:8px;color:var(--muted)}.meeting-card.hot:before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--red)}.meeting-card.future{border:1px dashed var(--line-strong);background:transparent}.matrix-legend{display:flex;gap:13px;font-size:9px;color:var(--muted);margin-bottom:10px}
/* theory */
.theory-canvas{min-width:900px;display:grid;grid-template-columns:repeat(6,1fr);gap:12px;align-items:start}.theory-column{position:relative}.theory-column:after{content:"→";position:absolute;right:-11px;top:38px;color:var(--line-strong)}.theory-column:last-child:after{display:none}.theory-era{font-size:8px;letter-spacing:.1em;color:var(--muted);margin-bottom:5px}.theory-main{border:1px solid var(--line-strong);background:#fffdfa;border-radius:8px;padding:12px 10px;margin-bottom:8px;width:100%;text-align:left}.theory-main:hover{transform:translateY(-1px);box-shadow:var(--shadow)}.theory-main b{display:block;font-family:Georgia,"Songti SC",serif;font-size:15px}.theory-main small{display:block;color:var(--muted);font-size:8px;margin-top:4px}.theory-child{border-left:1px solid var(--line);padding:5px 7px;margin-left:6px;font-size:9px}.theory-child button{border:0;background:none;padding:0;text-align:left;font-size:9px}.theory-child button:hover{color:var(--red)}
/* reform */
.reform-lanes{min-width:820px}.reform-lane{margin-bottom:17px}.reform-title{display:flex;align-items:center;gap:8px;font-size:10px;font-weight:800;margin-bottom:7px}.reform-chain{display:flex;align-items:stretch;gap:0}.reform-step{position:relative;width:150px;min-height:82px;border:1px solid var(--line);background:#fffdfa;padding:9px;text-align:left}.reform-step:not(:last-child):after{content:"→";position:absolute;right:-14px;top:29px;z-index:2;color:var(--line-strong)}.reform-step+ .reform-step{margin-left:19px}.reform-step b{display:block;font-size:10px;line-height:1.35}.reform-step small{display:block;margin-top:5px;font-size:8px;color:var(--muted)}.reform-step:hover{border-color:var(--red)}
/* graph */
.graph-wrap{display:grid;grid-template-columns:minmax(620px,1fr) 190px;min-height:500px}.graph-svg{width:100%;height:530px;background:radial-gradient(circle at center,rgba(255,255,255,.85),rgba(248,245,239,.35));border:1px solid var(--line);border-radius:9px}.graph-edge{stroke:#bcb4a8;stroke-width:1}.graph-edge-label{font-size:8px;fill:#7c756d}.graph-node{cursor:pointer}.graph-node circle{stroke:#fff;stroke-width:2}.graph-node text{font-size:9px;fill:var(--ink);text-anchor:middle}.graph-node.center text{font-weight:800;font-size:11px}.graph-side{padding-left:12px}.graph-side h3{font-size:10px;margin:0 0 8px}.graph-side p{font-size:9px;color:var(--muted);line-height:1.6}.graph-filter{display:block;width:100%;text-align:left;border:0;border-bottom:1px solid var(--line);background:transparent;padding:7px 2px;font-size:9px}
/* cards overview */
.overview-grid{display:grid;grid-template-columns:repeat(3,minmax(180px,1fr));gap:10px}.overview-card{border:1px solid var(--line);background:#fffdfa;border-radius:8px;padding:13px;text-align:left}.overview-card:hover{border-color:var(--line-strong);box-shadow:var(--shadow)}.overview-kicker{font-size:8px;color:var(--muted);letter-spacing:.12em}.overview-card b{display:block;font-family:Georgia,"Songti SC",serif;font-size:16px;margin:6px 0}.overview-card p{font-size:9px;line-height:1.6;color:var(--muted);margin:0}.overview-stat{font-size:19px;font-family:Georgia,serif;color:var(--red);margin-top:9px}
@media(max-width:980px){.topbar{grid-template-columns:210px 1fr auto}.brand-sub{display:none}.workspace{grid-template-columns:190px minmax(0,1fr)}.detail{position:fixed;right:10px;top:126px;bottom:86px;width:310px;z-index:20;box-shadow:0 20px 50px rgba(0,0,0,.18)}.overview-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){body{overflow:auto}.app-shell{height:auto;min-height:100vh;grid-template-rows:auto auto auto auto}.topbar{position:sticky;top:0;grid-template-columns:1fr auto;padding:9px 12px;gap:8px}.brand-wrap{grid-column:1}.search-wrap{grid-column:1/3;grid-row:2}.top-actions{grid-column:2;grid-row:1}.modebar{overflow-x:auto;padding:0 8px;position:sticky;top:98px;z-index:8}.modebar-right{display:none}.view-tab{padding:0 11px;white-space:nowrap;height:44px}.workspace{display:block;padding:7px}.sidebar{display:none}.stage{min-height:620px}.detail{position:static;width:auto;min-height:360px;margin-top:8px}.time-dock{position:sticky;bottom:0;grid-template-columns:70px 1fr;padding:4px 10px}.epoch-labels{font-size:7px}.stage-content{padding:10px}.overview-grid{grid-template-columns:1fr}.graph-wrap{grid-template-columns:1fr;min-width:720px}.graph-side{display:none}}
/* ===== V0.2 extensions ===== */
.search-item{width:100%;border:0;background:transparent;text-align:left}.search-empty{padding:13px;font-size:11px;color:var(--muted)}
.nav-item{width:100%;border:0;background:transparent;text-align:left}.workspace.nav-collapsed{grid-template-columns:0 minmax(0,1fr) 310px}.workspace.nav-collapsed .sidebar{opacity:0;pointer-events:none;border:0}.workspace{transition:grid-template-columns .18s ease}.sidebar{transition:opacity .18s ease}
.mini-action{border:1px solid var(--line);background:#fffdfa;border-radius:5px;padding:5px 7px;font-size:9px}.mini-action:hover{border-color:var(--red);color:var(--red)}.detail-compare-row{display:flex;gap:5px;align-items:center;margin:-2px 0 10px}.compare-mark{font-size:8px;color:var(--red);margin-left:auto}.claim-proof{display:inline-block;margin-left:7px;font-size:7px;border:1px solid var(--green);color:var(--green);border-radius:8px;padding:1px 4px;vertical-align:middle}
.overview-principle{margin-top:12px;border:1px solid var(--line);background:#fffdfa;border-radius:8px;padding:15px}.principle-title{font-family:Georgia,"Songti SC",serif;font-size:19px;margin:7px 0}.principle-copy{font-size:10px;color:var(--muted);line-height:1.85}
.matrix-v02{min-width:1070px}.matrix-future-empty,.matrix-na{height:100%;min-height:54px;display:grid;place-items:center;text-align:center;color:#aaa;font-size:8px}.matrix-future-empty{border:1px dashed var(--line);border-radius:4px;color:var(--muted);padding:4px}.matrix-v02 .meeting-card small{display:block;margin-top:4px;line-height:1.25}.matrix-v02 .matrix-cell{min-height:70px}
.reform-title small{margin-left:auto;color:var(--muted);font-weight:400;font-size:8px}.reform-chain{overflow-x:auto;padding-bottom:4px}.reform-step{flex:0 0 156px}
/* Xi thought view */
.xi-hero{display:grid;grid-template-columns:1fr auto;align-items:center;gap:20px;border:1px solid var(--line-strong);background:linear-gradient(135deg,#fffdfa,#f3eee4);border-radius:10px;padding:18px;margin-bottom:14px}.xi-hero h2{font-family:Georgia,"Songti SC",serif;font-size:22px;margin:5px 0 7px}.xi-hero p{max-width:820px;font-size:10px;line-height:1.8;color:var(--muted);margin:0}.xi-hero button{border:1px solid var(--red);color:var(--red);background:transparent;border-radius:6px;padding:8px 10px;font-size:9px}.xi-groups{display:grid;gap:14px}.xi-group{border:1px solid var(--line);border-radius:9px;background:rgba(255,253,250,.72);overflow:hidden}.xi-group>header{display:flex;align-items:center;justify-content:space-between;padding:11px 13px;background:var(--paper-2);border-bottom:1px solid var(--line)}.xi-group>header span{display:block;font-family:Georgia,"Songti SC",serif;font-size:17px}.xi-group>header small{display:block;font-size:8px;color:var(--muted);margin-top:2px}.xi-group>header b{font-family:Georgia,serif;font-size:22px;color:var(--red)}.xi-topic-grid{display:grid;grid-template-columns:repeat(5,minmax(140px,1fr));gap:8px;padding:10px}.xi-group.specific .xi-topic-grid{grid-template-columns:repeat(5,minmax(140px,1fr))}.xi-topic-card{position:relative;border:1px solid var(--line);background:#fffdfa;border-radius:7px;padding:10px;text-align:left;min-height:92px}.xi-topic-card:hover{border-color:var(--red);box-shadow:var(--shadow)}.xi-topic-card b{display:block;font-size:11px;line-height:1.35;padding-right:18px}.xi-topic-card p{font-size:8px;line-height:1.55;color:var(--muted);margin:6px 0 0}.xi-index{position:absolute;right:7px;top:7px;font-family:Georgia,serif;font-size:12px;color:#b9b0a2}
.system-grid{display:grid;grid-template-columns:repeat(4,minmax(220px,1fr));gap:10px;align-items:start;min-width:980px}.system-column{border:1px solid var(--line);background:#fffdfa;border-radius:9px;overflow:hidden}.system-head{width:100%;border:0;border-bottom:1px solid var(--line);background:var(--paper-2);text-align:left;padding:13px}.system-head span{float:right;font-size:8px;color:var(--muted)}.system-head b{display:block;font-family:Georgia,"Songti SC",serif;font-size:17px}.system-head p{font-size:8px;color:var(--muted);line-height:1.55;margin:5px 0 0}.system-leaves{max-height:520px;overflow:auto}.system-leaves button{display:grid;grid-template-columns:24px 1fr;gap:5px;width:100%;border:0;border-bottom:1px dashed var(--line);background:transparent;text-align:left;padding:8px 9px;font-size:9px;line-height:1.4}.system-leaves button:hover{background:var(--red-soft)}.system-leaves button span{font-family:Georgia,serif;color:var(--red)}
/* compare */
.compare-controls{display:grid;grid-template-columns:1fr 40px 1fr;gap:8px;align-items:end;margin-bottom:10px}.compare-controls label{display:grid;gap:4px;font-size:9px;color:var(--muted)}.compare-controls select{width:100%;border:1px solid var(--line-strong);background:#fffdfa;border-radius:6px;padding:8px;font-size:10px}.compare-controls>button{border:1px solid var(--line);background:#fffdfa;border-radius:6px;height:33px}.compare-insight{display:grid;grid-template-columns:160px 1fr 1fr;border:1px solid var(--line);border-radius:8px;background:var(--paper-2);margin-bottom:10px}.compare-insight>div{padding:9px 11px;border-right:1px solid var(--line)}.compare-insight>div:last-child{border-right:0}.compare-insight span{display:block;font-size:7px;letter-spacing:.1em;color:var(--muted);text-transform:uppercase}.compare-insight b{display:block;font-size:10px;margin-top:3px}.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.compare-card{border:1px solid var(--line);background:#fffdfa;border-radius:9px;padding:14px;position:relative}.compare-label{position:absolute;right:12px;top:10px;width:25px;height:25px;display:grid;place-items:center;border:1px solid var(--red);color:var(--red);font-family:Georgia,serif;border-radius:50%}.compare-card h2{font-family:Georgia,"Songti SC",serif;font-size:20px;margin:7px 35px 4px 0}.compare-card h3{font-size:8px;letter-spacing:.12em;color:var(--muted);margin:15px 0 7px;text-transform:uppercase}.compare-summary{font-size:10px;line-height:1.75;padding:9px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.compare-rel{display:grid;grid-template-columns:76px 1fr;width:100%;border:0;border-bottom:1px dashed var(--line);background:transparent;text-align:left;padding:7px 0;font-size:9px}.compare-rel span{color:var(--muted)}.compare-rel:hover{color:var(--red)}.compare-empty{font-size:9px;color:var(--muted);padding:6px 0}
/* coverage */
.quality-summary{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-bottom:12px}.quality-summary>div{border:1px solid var(--line);background:#fffdfa;border-radius:8px;padding:11px}.quality-summary span{display:block;font-size:8px;color:var(--muted)}.quality-summary b{display:block;font-family:Georgia,serif;font-size:22px;margin-top:4px;color:var(--red)}.coverage-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}.coverage-module{border:1px solid var(--line);background:#fffdfa;border-radius:8px;padding:12px}.coverage-module header{display:flex;justify-content:space-between;align-items:center;font-size:10px}.coverage-module header span{font-size:8px;color:var(--muted)}.quality-bar{height:5px;background:#ded8ce;margin:10px 0 4px}.quality-bar i{display:block;height:100%;background:var(--green)}.coverage-module strong{font-family:Georgia,serif;color:var(--green);font-size:17px}.coverage-module p{font-size:8px;line-height:1.6;color:var(--muted);margin:5px 0 0}.evidence-rule{margin-top:12px;border-left:3px solid var(--red);background:#fffdfa;padding:13px 15px}.evidence-rule h2{font-family:Georgia,"Songti SC",serif;font-size:18px;margin:5px 0}.evidence-rule p{font-size:9px;color:var(--muted);line-height:1.8;margin:0}
@media(max-width:1180px){.xi-topic-grid,.xi-group.specific .xi-topic-grid{grid-template-columns:repeat(3,minmax(140px,1fr))}.coverage-grid{grid-template-columns:repeat(2,1fr)}.quality-summary{grid-template-columns:repeat(3,1fr)}}
@media(max-width:700px){.xi-hero{grid-template-columns:1fr}.xi-topic-grid,.xi-group.specific .xi-topic-grid{grid-template-columns:1fr 1fr}.compare-grid{grid-template-columns:1fr}.compare-insight{grid-template-columns:1fr}.compare-insight>div{border-right:0;border-bottom:1px solid var(--line)}.compare-controls{grid-template-columns:1fr 34px 1fr}.coverage-grid,.quality-summary{grid-template-columns:1fr 1fr}.workspace.nav-collapsed{grid-template-columns:1fr}}

/* V0.3 exam distinctions */
.confusion-grid{display:grid;grid-template-columns:repeat(2,minmax(260px,1fr));gap:10px}.confusion-card{border:1px solid var(--line);background:#fffdfa;border-radius:9px;padding:13px}.confusion-card header{display:flex;gap:8px;align-items:center;border-bottom:1px solid var(--line);padding-bottom:8px}.confusion-card header span{font-family:Georgia,serif;color:var(--red);font-size:17px}.confusion-card header b{font-size:11px}.confusion-card h3{font-family:Georgia,"Songti SC",serif;font-size:15px;margin:11px 0 6px}.confusion-card p{font-size:9px;line-height:1.75;color:var(--muted);min-height:48px}.confusion-pair{display:grid;grid-template-columns:1fr 28px 1fr;align-items:center;gap:5px;margin:9px 0}.confusion-pair button{border:1px solid var(--line);background:var(--paper-2);border-radius:6px;padding:7px 5px;font-size:9px}.confusion-pair span{text-align:center;font-family:Georgia,serif;color:var(--red);font-size:8px}.confusion-compare{margin-top:8px;width:100%;border:1px solid var(--line-strong);background:transparent;border-radius:6px;padding:7px;font-size:9px}.confusion-compare:hover,.confusion-pair button:hover{border-color:var(--red);color:var(--red)}
@media(max-width:900px){.confusion-grid{grid-template-columns:1fr}}

/* ===== V0.4 true mobile layouts ===== */
.mobile-timeline,.mobile-matrix,.mobile-theory,.mobile-reform,.mobile-graph{display:none}
@media(max-width:760px){
  body{overflow:auto;-webkit-overflow-scrolling:touch}
  .app-shell{height:auto;min-height:100dvh;grid-template-rows:auto auto auto auto}
  .topbar{position:sticky;top:0;z-index:40;grid-template-columns:minmax(0,1fr) auto;padding:8px 10px;gap:7px;background:rgba(248,245,239,.97)}
  .brand-wrap{gap:8px;min-width:0}.brand-mark{width:32px;height:32px;font-size:19px}.brand-title{font-size:15px}.brand-sub{display:block;font-size:7px;letter-spacing:.08em;white-space:nowrap}
  .top-actions{gap:4px}.ghost-btn{padding:6px 7px;font-size:10px}.search-wrap{grid-column:1/3;height:36px}.search-wrap input{font-size:12px}.search-kbd{display:none}
  .modebar{position:sticky;top:88px;z-index:35;height:44px;overflow-x:auto;overflow-y:hidden;padding:0 5px;scrollbar-width:none}.modebar::-webkit-scrollbar{display:none}.view-tabs{min-width:max-content}.view-tab{height:44px;padding:0 10px;font-size:11px}.modebar-right{display:none}
  .workspace{display:block;padding:6px}.sidebar{display:none}.panel{border-radius:10px}.stage{min-height:0;overflow:visible}.stage-head{height:auto;min-height:58px;padding:9px 12px;gap:8px}.stage-head h1{font-size:19px}.stage-tools{flex-wrap:wrap;justify-content:flex-end}.stage-chip{padding:5px 8px;font-size:8px}.stage-content{overflow:visible;padding:8px}
  .detail{position:static;width:auto;min-height:0;margin-top:7px;overflow:visible}.detail-content{overflow:visible;padding:12px}.detail-title{font-size:20px}.detail-summary{font-size:11px}.claim-card{font-size:10px}
  .time-dock{position:sticky;bottom:0;z-index:30;grid-template-columns:62px minmax(0,1fr);grid-template-rows:28px 18px;padding:3px 8px;background:rgba(248,245,239,.97);backdrop-filter:blur(10px)}.time-dock-label b{font-size:17px}.epoch-labels{font-size:6px}.epoch-labels span:nth-child(2),.epoch-labels span:nth-child(4){display:none}
  .overview-grid{grid-template-columns:1fr}.overview-card{min-height:110px}
  .xi-hero{grid-template-columns:1fr;padding:13px}.xi-hero h2{font-size:18px}.xi-topic-grid,.xi-group.specific .xi-topic-grid{grid-template-columns:1fr}.xi-topic-card{min-height:0}.system-grid{min-width:0;grid-template-columns:1fr}.system-leaves{max-height:none}
  .compare-controls{grid-template-columns:1fr 32px 1fr}.compare-grid,.compare-insight{grid-template-columns:1fr}.compare-insight>div{border-right:0;border-bottom:1px solid var(--line)}.compare-card{padding:12px}.compare-card h2{font-size:18px}.quality-summary,.coverage-grid{grid-template-columns:1fr 1fr}.quality-summary b{font-size:18px}.confusion-grid{grid-template-columns:1fr}.confusion-card p{min-height:0}
  .timeline,.matrix-wrap,.theory-canvas,.reform-lanes,.graph-wrap{display:none!important}.mobile-timeline,.mobile-matrix,.mobile-theory,.mobile-reform,.mobile-graph{display:block}
  .mobile-timeline{display:grid;gap:10px}.mobile-timeline-section{border:1px solid var(--line);border-radius:8px;background:#fffdfa;overflow:hidden}.mobile-timeline-section>header{display:flex;justify-content:space-between;align-items:center;padding:9px 10px;background:var(--paper-2);font-size:10px}.mobile-timeline-section>header span{color:var(--muted);font-size:8px}.mobile-timeline-list{padding:3px 8px}.mobile-timeline-item{position:relative;width:100%;display:grid;grid-template-columns:48px 12px 1fr;gap:7px;align-items:start;border:0;border-bottom:1px dashed var(--line);background:transparent;text-align:left;padding:8px 0}.mobile-timeline-item:last-child{border-bottom:0}.mobile-timeline-item time{font-family:Georgia,serif;font-size:11px;color:var(--muted);text-align:right;padding-top:1px}.mobile-line-dot{width:8px;height:8px;border-radius:50%;margin-top:3px;box-shadow:0 0 0 2px #fff}.mobile-timeline-item div b{display:block;font-size:11px}.mobile-timeline-item div small{display:block;font-size:8px;color:var(--muted);line-height:1.5;margin-top:3px}.mobile-timeline-item.future{opacity:.6}
  .mobile-matrix{display:grid;gap:7px}.mobile-session{border:1px solid var(--line);border-radius:8px;background:#fffdfa;overflow:hidden}.mobile-session summary{display:flex;justify-content:space-between;align-items:center;padding:10px 11px;background:var(--paper-2);font-size:11px;cursor:pointer}.mobile-session summary span{font-size:8px;color:var(--muted)}.mobile-meeting-card{width:100%;display:grid;grid-template-columns:42px 1fr;gap:8px;border:0;border-bottom:1px solid var(--line);background:transparent;text-align:left;padding:9px 10px}.mobile-meeting-card>span{font-family:Georgia,serif;color:var(--gold);font-size:13px}.mobile-meeting-card b{display:block;font-size:11px}.mobile-meeting-card small{font-size:8px;color:var(--muted)}.mobile-meeting-card p{font-size:8px;color:var(--muted);line-height:1.5;margin:4px 0 0}.mobile-meeting-card.hot{border-left:3px solid var(--red)}.mobile-meeting-card.future{border-left:3px dashed var(--red);opacity:.7}
  .mobile-theory{display:grid;gap:0}.mobile-theory-era{display:grid;grid-template-columns:50px 1fr;gap:8px}.mobile-theory-spine{position:relative;text-align:right;padding-top:10px}.mobile-theory-spine:after{content:"";position:absolute;right:4px;top:27px;bottom:-4px;width:1px;background:var(--line-strong)}.mobile-theory-era:last-child .mobile-theory-spine:after{display:none}.mobile-theory-spine span{font-family:Georgia,serif;font-size:10px;color:var(--muted);margin-right:13px}.mobile-theory-spine i{position:absolute;right:0;top:13px;width:9px;height:9px;border-radius:50%;box-shadow:0 0 0 3px var(--paper)}.mobile-theory-body{padding:4px 0 12px}.mobile-theory .theory-main{width:100%;min-height:0;text-align:left;padding:10px;border-top:1px solid var(--line);border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:#fffdfa;border-radius:0 7px 7px 0}.mobile-theory .theory-main b{display:block;font-size:12px}.mobile-theory .theory-main small{display:block;font-size:8px;color:var(--muted);line-height:1.5;margin-top:4px}.mobile-theory-children{display:flex;flex-wrap:wrap;gap:4px;margin-top:5px}.mobile-theory-children button{border:1px solid var(--line);background:var(--paper-2);border-radius:12px;padding:4px 7px;font-size:8px}
  .mobile-reform{display:grid;gap:7px}.mobile-reform-lane{border:1px solid var(--line);background:#fffdfa;border-radius:8px;overflow:hidden}.mobile-reform-lane summary{display:flex;justify-content:space-between;padding:10px 11px;background:var(--paper-2);font-size:10px}.mobile-reform-lane summary span{font-size:8px;color:var(--muted)}.mobile-reform-step{width:100%;display:grid;grid-template-columns:28px 1fr;gap:7px;border:0;border-bottom:1px dashed var(--line);background:transparent;text-align:left;padding:8px 10px}.mobile-reform-step>span{font-family:Georgia,serif;color:var(--green);font-size:10px}.mobile-reform-step b{display:block;font-size:10px}.mobile-reform-step small{font-size:8px;color:var(--muted)}
  .mobile-graph-center{border:1px solid;border-left-width:4px;border-radius:8px;background:#fffdfa;padding:12px;margin-bottom:8px}.mobile-graph-center b{display:block;font-family:Georgia,"Songti SC",serif;font-size:18px}.mobile-graph-center small{font-size:8px;color:var(--muted)}.mobile-graph-list{display:grid;gap:5px}.mobile-graph-list button{width:100%;display:grid;grid-template-columns:72px 8px 1fr;gap:7px;align-items:start;border:1px solid var(--line);border-radius:7px;background:#fffdfa;text-align:left;padding:8px}.mobile-graph-list>button>span{font-size:8px;color:var(--muted)}.mobile-graph-list i{width:7px;height:7px;border-radius:50%;margin-top:3px}.mobile-graph-list b{display:block;font-size:10px}.mobile-graph-list small{display:block;font-size:8px;line-height:1.45;color:var(--muted);margin-top:2px}
}
@media(max-width:430px){.brand-sub{display:none}.top-actions .ghost-btn{font-size:0}.top-actions .ghost-btn::first-letter{font-size:12px}.quality-summary,.coverage-grid{grid-template-columns:1fr}.compare-controls{grid-template-columns:1fr}.compare-controls>button{display:none}.xi-group>header span{font-size:15px}}

/* ===== V0.4.1 learning flow ===== */
.detail-backdrop{display:none}.detail-close-btn{display:none}
.study-mark-row{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0 4px}.study-mark{border:1px solid var(--line);background:#fffdfa;border-radius:16px;padding:5px 8px;font-size:9px;color:var(--ink)}.study-mark.active{border-color:var(--gold);background:#fff6dc;color:#725817}.study-mark.weak.active{border-color:var(--red);background:var(--red-soft);color:#7b2529}.study-mark.mastered.active{border-color:var(--green);background:#eaf4ee;color:#315f4d}
.keypoint-section{margin-top:10px}.keypoint-card{display:grid;grid-template-columns:22px 1fr;gap:8px;align-items:start;padding:8px 0;border-bottom:1px dashed var(--line);font-size:11px;line-height:1.65}.keypoint-card>span{display:grid;place-items:center;width:20px;height:20px;border-radius:50%;background:var(--red-soft);color:var(--red);font-family:Georgia,serif;font-size:10px;font-weight:700}.keypoint-card em{display:inline-block;margin-left:6px;font-style:normal;font-size:7px;color:var(--green);border:1px solid var(--green);border-radius:8px;padding:0 4px}
.detail-more,.detail-source-details{margin-top:14px;border-top:1px solid var(--line);padding-top:10px}.detail-more>summary,.detail-source-details>summary{cursor:pointer;font-size:9px;font-weight:800;letter-spacing:.08em;color:var(--muted);padding:4px 0;list-style:none}.detail-more>summary::-webkit-details-marker,.detail-source-details>summary::-webkit-details-marker{display:none}.detail-more>summary:after,.detail-source-details>summary:after{content:'＋';float:right;color:var(--muted)}.detail-more[open]>summary:after,.detail-source-details[open]>summary:after{content:'−'}
.mobile-study-nav{display:none}

@media(max-width:760px){
  body.detail-open{overflow:hidden}
  .detail-backdrop{display:block;position:fixed;inset:0;z-index:79;background:rgba(25,22,18,.34);backdrop-filter:blur(2px);opacity:0;pointer-events:none;transition:opacity .18s ease}
  .detail-backdrop.open{opacity:1;pointer-events:auto}
  .detail{position:fixed!important;left:0;right:0;bottom:0;top:auto;width:auto!important;height:min(92dvh,820px);min-height:0!important;margin:0!important;z-index:80;border-radius:18px 18px 0 0!important;box-shadow:0 -18px 60px rgba(0,0,0,.22)!important;overflow:hidden!important;transform:translateY(102%);transition:transform .22s ease;background:var(--paper)}
  .detail.mobile-open{transform:translateY(0)}
  .detail-head{height:46px;flex:0 0 46px;background:rgba(248,245,239,.98);position:relative}.detail-head:before{content:'';position:absolute;top:6px;left:50%;transform:translateX(-50%);width:36px;height:4px;border-radius:4px;background:var(--line-strong)}
  .detail-close-btn{display:inline-flex;font-size:18px;line-height:1;padding:1px 7px}.detail-content{overflow:auto!important;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;padding:10px 14px calc(22px + env(safe-area-inset-bottom))!important}
  .mobile-study-nav{position:sticky;top:-10px;z-index:3;display:grid;grid-template-columns:1fr auto 1fr;gap:7px;align-items:center;margin:-10px -14px 12px;padding:8px 14px;border-bottom:1px solid var(--line);background:rgba(248,245,239,.96);backdrop-filter:blur(10px)}.mobile-study-nav button{border:1px solid var(--line);background:#fffdfa;border-radius:14px;padding:6px 8px;font-size:9px}.mobile-study-nav button:last-child{text-align:right}.mobile-study-nav button:disabled{opacity:.32}.mobile-study-nav span{text-align:center;color:var(--muted);font-size:8px;min-width:46px}
  .detail-title{font-size:24px!important;line-height:1.25;margin-top:7px}.detail-date{font-size:10px}.importance{margin:6px 0 9px}.study-mark-row{display:grid;grid-template-columns:repeat(4,1fr);gap:5px;margin:8px 0 12px}.study-mark{padding:7px 3px;font-size:9px;border-radius:8px}
  .keypoint-section{background:#fffaf2;border:1px solid var(--line);border-radius:10px;padding:10px 11px;margin:8px 0 12px}.keypoint-section h3{color:var(--red)!important}.keypoint-card{font-size:11px;padding:7px 0}.detail-section{margin-top:13px}.detail-section h3{font-size:9px}.detail-summary{border:0!important;padding:0!important;font-size:11px!important;line-height:1.8}.relation-item{font-size:10px;padding:7px 0}.rel-label{width:58px;flex-basis:58px}.detail-compare-row{margin-top:15px;padding-top:12px;border-top:1px solid var(--line)}
  .detail-more,.detail-source-details{border:1px solid var(--line);border-radius:8px;padding:0 9px;margin-top:12px;background:#fffdfa}.detail-more>summary,.detail-source-details>summary{padding:9px 0}.detail-more .claim-card,.detail-source-details .source-card{margin-left:0;margin-right:0}
}
@media(prefers-reduced-motion:reduce){.detail,.detail-backdrop{transition:none!important}}
.study-summary-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin-bottom:12px}.study-summary-grid article{border:1px solid var(--line);background:#fffdfa;border-radius:9px;padding:12px}.study-summary-grid span{display:block;font-size:9px;color:var(--muted);letter-spacing:.08em}.study-summary-grid b{display:block;font-family:Georgia,serif;font-size:28px;margin:5px 0}.study-summary-grid button{border:1px solid var(--red);background:var(--red-soft);color:var(--red);border-radius:14px;padding:5px 9px;font-size:9px}.study-summary-grid button:disabled{opacity:.35}.study-summary-grid small{font-size:8px;color:var(--muted)}.study-section{border:1px solid var(--line);border-radius:9px;background:#fffdfa;margin:9px 0;overflow:hidden}.study-section>header{display:flex;justify-content:space-between;align-items:center;padding:9px 11px;background:var(--paper-2);font-size:10px}.study-section>header span{font-size:8px;color:var(--muted)}.study-list button{width:100%;display:grid;grid-template-columns:8px 1fr auto;gap:9px;align-items:center;text-align:left;border:0;border-bottom:1px dashed var(--line);background:transparent;padding:9px 11px}.study-list button:last-child{border-bottom:0}.study-list i{width:7px;height:7px;border-radius:50%}.study-list b{display:block;font-size:10px}.study-list small{display:block;font-size:8px;color:var(--muted);margin-top:2px}.study-list>button>span{color:var(--muted)}.study-empty{padding:18px;text-align:center;color:var(--muted);font-size:9px;line-height:1.7}
@media(max-width:760px){.study-summary-grid{grid-template-columns:1fr 1fr}.study-summary-grid article:first-child{grid-column:1/3}.study-section{margin:7px 0}.study-list b{font-size:11px}.study-list button{padding:10px 11px}}


/* ===== V0.5 canonical phrases + desktop study workbench ===== */
.desktop-study-nav{display:grid;grid-template-columns:1fr auto 1fr;gap:6px;align-items:center;margin:-3px 0 12px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.desktop-study-nav button{border:1px solid var(--line);background:#fffdfa;border-radius:15px;padding:5px 8px;font-size:9px}.desktop-study-nav button:last-child{text-align:right}.desktop-study-nav button:disabled{opacity:.3}.desktop-study-nav span{text-align:center;font-size:8px;color:var(--muted)}
.desktop-shortcuts{display:flex;flex-wrap:wrap;gap:5px;margin:13px 0 0;padding-top:10px;border-top:1px dashed var(--line)}.desktop-shortcuts span{font-size:8px;color:var(--muted);border:1px solid var(--line);border-radius:5px;padding:3px 5px;background:#fffdfa}
.canonical-intro{display:grid;grid-template-columns:82px 1fr;gap:14px;align-items:center;border:1px solid var(--line);background:linear-gradient(135deg,#fffaf2,#f8f5ef);border-radius:12px;padding:14px 16px;margin-bottom:12px}.canonical-intro>b{font-family:Georgia,serif;font-size:44px;color:var(--red);text-align:center}.canonical-intro strong{font-size:15px}.canonical-intro p{font-size:10px;color:var(--muted);margin:5px 0 0;line-height:1.65}
.canonical-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px}.canonical-card{text-align:left;border:1px solid var(--line);background:#fffdfa;border-radius:10px;padding:12px;min-height:205px;transition:.15s ease}.canonical-card:hover{transform:translateY(-1px);border-color:var(--line-strong);box-shadow:var(--shadow)}.canonical-top{display:flex;justify-content:space-between;gap:8px;align-items:center}.canonical-top span{font-size:8px;color:var(--red);font-weight:800;letter-spacing:.08em}.canonical-top em{font-style:normal;font-size:8px;color:var(--gold)}.canonical-card>small{display:block;color:var(--muted);font-size:8px;margin:12px 0 3px}.canonical-card h3{font-size:12px;margin:0;color:var(--muted);font-weight:600}.canonical-card>b{display:block;font-family:Georgia,"Songti SC",serif;font-size:19px;line-height:1.35;margin:4px 0 8px}.canonical-card>p{font-size:9px;line-height:1.65;color:#4e565b;margin:0}.canonical-traps{margin-top:9px;padding-top:8px;border-top:1px dashed var(--line)}.canonical-traps i{display:block;font-style:normal;font-size:8px;color:var(--red);font-weight:800;margin-bottom:4px}.canonical-traps span{display:block;font-size:8px;color:var(--muted);line-height:1.45}
@media(min-width:1200px){.workspace{grid-template-columns:240px minmax(0,1fr) 340px}.detail{position:relative}.detail-content{scrollbar-gutter:stable}.canonical-grid{grid-template-columns:repeat(3,minmax(220px,1fr))}}
@media(max-width:1100px) and (min-width:761px){.canonical-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){.canonical-intro{grid-template-columns:58px 1fr;padding:10px}.canonical-intro>b{font-size:34px}.canonical-grid{grid-template-columns:1fr}.canonical-card{min-height:0;padding:12px}.canonical-card>b{font-size:20px}.desktop-study-nav,.desktop-shortcuts{display:none!important}}

.canonical-filters{display:flex;flex-wrap:wrap;gap:5px;margin-bottom:10px}.canonical-filters .stage-chip{background:#fffdfa}.canonical-filters .stage-chip.active{background:var(--ink);color:#fff}
@media(max-width:760px){.canonical-filters{flex-wrap:nowrap;overflow-x:auto;padding-bottom:5px;scrollbar-width:none}.canonical-filters::-webkit-scrollbar{display:none}.canonical-filters .stage-chip{white-space:nowrap;flex:0 0 auto}}

/* ===== V0.6 recall / evolution / pinned workbench / smart search ===== */
.pinned-reference{display:grid;grid-template-columns:auto minmax(0,1fr) auto auto;gap:6px;align-items:center;border:1px solid #d7c89f;background:#fff8df;border-radius:8px;padding:7px 8px;margin:0 0 10px;font-size:8px}.pinned-reference>span{color:#8a6a24;font-weight:800}.pinned-reference>b{font-size:9px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.pinned-reference button{border:1px solid var(--line);background:#fffdfa;border-radius:12px;padding:4px 6px;font-size:8px}.pinned-reference button:last-child{border-color:var(--red);color:var(--red)}
.evolution-tabs{display:flex;gap:5px;overflow-x:auto;padding-bottom:7px;margin-bottom:8px;scrollbar-width:none}.evolution-tabs::-webkit-scrollbar{display:none}.evolution-tabs .stage-chip{white-space:nowrap;flex:0 0 auto}.evolution-hero{border:1px solid var(--line);background:linear-gradient(135deg,#fffaf2,#f0f4f1);border-radius:12px;padding:15px 17px;margin-bottom:13px}.evolution-hero>span{font-size:8px;color:var(--green);font-weight:900;letter-spacing:.12em}.evolution-hero h2{font-family:Georgia,"Songti SC",serif;font-size:22px;margin:4px 0}.evolution-hero p{margin:0;font-size:11px;color:#4f5960}.evolution-hero small{display:block;margin-top:8px;color:var(--muted);font-size:9px;line-height:1.6}.evolution-chain{max-width:850px;margin:0 auto}.evolution-step{display:grid;grid-template-columns:1fr;justify-items:center}.evolution-step>button{width:100%;display:grid;grid-template-columns:38px 1fr;gap:10px;text-align:left;border:1px solid var(--line);background:#fffdfa;border-radius:10px;padding:10px 12px;transition:.15s ease}.evolution-step>button:hover{border-color:var(--line-strong);transform:translateY(-1px);box-shadow:var(--shadow)}.evolution-step>button>span{width:32px;height:32px;display:grid;place-items:center;border-radius:50%;background:var(--green-soft);color:var(--green);font-family:Georgia,serif;font-weight:700}.evolution-step b{display:block;font-size:12px}.evolution-step small{display:block;font-size:8px;color:var(--muted);margin:2px 0 4px}.evolution-step p{font-size:9px;color:#505a60;line-height:1.55;margin:0}.evolution-step>i{font-style:normal;color:var(--line-strong);font-size:18px;line-height:22px}
.recall-toolbar{display:flex;gap:5px;flex-wrap:wrap;margin-bottom:9px}.recall-toolbar .stage-chip b{margin-left:4px;color:var(--red)}.recall-stats{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}.recall-stats span{border:1px solid var(--line);background:#fffdfa;border-radius:14px;padding:5px 9px;font-size:8px;color:var(--muted)}.recall-stats b{color:var(--ink);font-size:10px}.recall-card{max-width:760px;margin:16px auto;border:1px solid var(--line);border-radius:16px;background:#fffdfa;box-shadow:var(--shadow);padding:18px;min-height:360px;display:flex;flex-direction:column}.recall-card header{display:flex;justify-content:space-between;align-items:center;font-size:8px;color:var(--muted);letter-spacing:.08em}.recall-card header>span{color:var(--red);font-weight:900}.recall-question{font-family:Georgia,"Songti SC",serif;font-size:25px;line-height:1.55;text-align:center;margin:auto 10px;padding:24px 8px}.recall-reveal{align-self:center;border:1px solid var(--red);background:var(--red-soft);color:var(--red);border-radius:24px;padding:9px 28px;font-size:11px;font-weight:700}.recall-answer{border-top:1px solid var(--line);padding-top:14px;text-align:center}.recall-answer small{display:block;color:var(--muted);font-size:8px}.recall-answer>b{display:block;font-family:Georgia,"Songti SC",serif;font-size:23px;line-height:1.5;margin:5px 0}.recall-answer p{font-size:9px;color:#5a6165;line-height:1.6;margin:4px auto 10px;max-width:610px}.recall-answer button{border:0;background:transparent;color:var(--blue);font-size:9px}.recall-grades{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin-top:16px}.recall-grades button{border:1px solid var(--line);background:#fff;border-radius:10px;padding:9px 6px;font-size:11px;font-weight:700}.recall-grades button:first-child{border-color:#d9a3a5;color:var(--red)}.recall-grades button:nth-child(2){border-color:#d8c38e;color:#81651e}.recall-grades button:last-child{border-color:#9fc3ad;color:var(--green)}.recall-grades small{display:block;font-size:7px;font-weight:400;color:var(--muted);margin-top:3px}.recall-empty{text-align:center;border:1px dashed var(--line);border-radius:12px;padding:35px;background:#fffdfa}.recall-empty b{font-size:14px}.recall-empty p{font-size:9px;color:var(--muted)}
.search-smart>div{min-width:0}.search-smart small{display:block!important;max-width:540px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--muted);margin-top:2px}.search-smart i{display:block;font-style:normal;font-size:7px;color:var(--green);margin-top:2px}
@media(max-width:760px){.pinned-reference{display:none}.evolution-hero{padding:12px}.evolution-hero h2{font-size:20px}.evolution-chain{margin:0}.evolution-step>button{grid-template-columns:34px 1fr;padding:10px}.recall-toolbar{flex-wrap:nowrap;overflow-x:auto;padding-bottom:5px;scrollbar-width:none}.recall-toolbar::-webkit-scrollbar{display:none}.recall-toolbar .stage-chip{white-space:nowrap;flex:0 0 auto}.recall-card{min-height:calc(100dvh - 270px);margin:8px 0;padding:14px;border-radius:12px}.recall-question{font-size:23px;margin:auto 0}.recall-answer>b{font-size:22px}.recall-grades{position:sticky;bottom:0;background:#fffdfa;padding-top:7px}.recall-stats{gap:4px}.recall-stats span{padding:4px 7px}.search-smart small{max-width:230px}}


/* ===== V0.6.1 portrait recall focus ===== */
@media (max-width:900px), (hover:none) and (pointer:coarse) and (orientation:portrait){
  body.mobile-layout .sidebar{display:none!important}
  body.mobile-layout .workspace{display:block!important;padding:6px!important}
  body.mobile-layout .stage{min-height:0}
  body.mobile-layout .detail:not(.mobile-open){pointer-events:none}

  body.recall-focus{overflow:hidden!important;background:var(--paper)}
  body.recall-focus .app-shell{display:block!important;height:100dvh!important;min-height:100dvh!important;overflow:hidden}
  body.recall-focus .topbar,
  body.recall-focus .modebar,
  body.recall-focus .sidebar,
  body.recall-focus .detail,
  body.recall-focus .detail-backdrop,
  body.recall-focus .time-dock{display:none!important}
  body.recall-focus .workspace{display:block!important;height:100dvh!important;padding:0!important;overflow:hidden}
  body.recall-focus .stage{height:100dvh!important;min-height:100dvh!important;border:0!important;border-radius:0!important;box-shadow:none!important;background:var(--paper)!important;overflow:hidden!important;display:flex!important;flex-direction:column}
  body.recall-focus .stage-head{position:relative!important;top:auto!important;z-index:5;flex:0 0 auto;min-height:58px!important;padding:8px 12px!important;border-bottom:1px solid var(--line);background:rgba(248,245,239,.98)}
  body.recall-focus .stage-head .eyebrow{font-size:7px}
  body.recall-focus .stage-head h1{font-size:19px!important;margin-top:2px}
  body.recall-focus .stage-tools{gap:4px!important;flex-wrap:nowrap!important}
  body.recall-focus .stage-tools .stage-chip{padding:6px 8px!important;font-size:8px!important;white-space:nowrap}
  body.recall-focus .stage-content{flex:1;min-height:0!important;overflow:auto!important;padding:8px 12px calc(10px + env(safe-area-inset-bottom))!important;-webkit-overflow-scrolling:touch;overscroll-behavior:contain}
  body.recall-focus .recall-toolbar{position:sticky;top:0;z-index:4;margin:0 -2px 6px;padding:2px 0 7px;background:rgba(248,245,239,.97);backdrop-filter:blur(8px)}
  body.recall-focus .recall-stats{display:none!important}
  body.recall-focus .recall-card{width:100%!important;max-width:none!important;min-height:calc(100dvh - 125px)!important;margin:0!important;padding:14px 8px 10px!important;border:0!important;border-radius:0!important;box-shadow:none!important;background:transparent!important}
  body.recall-focus .recall-card header{padding:0 2px;font-size:9px}
  body.recall-focus .recall-question{font-size:clamp(25px,7vw,34px)!important;line-height:1.55!important;margin:auto 0!important;padding:28px 8px!important}
  body.recall-focus .recall-reveal{width:min(78%,320px);min-height:48px;font-size:14px!important;margin:0 auto 10px}
  body.recall-focus .recall-answer{padding:18px 6px 0!important}
  body.recall-focus .recall-answer>b{font-size:clamp(23px,6.5vw,31px)!important;line-height:1.5}
  body.recall-focus .recall-answer p{font-size:11px!important;line-height:1.75!important}
  body.recall-focus .recall-grades{position:sticky!important;bottom:0!important;grid-template-columns:repeat(3,1fr)!important;gap:7px!important;margin:14px -2px 0!important;padding:8px 2px calc(2px + env(safe-area-inset-bottom))!important;background:linear-gradient(to bottom,rgba(248,245,239,.88),var(--paper) 28%)}
  body.recall-focus .recall-grades button{min-height:56px!important;font-size:12px!important;border-radius:12px!important}
  body.recall-focus .recall-grades small{font-size:8px!important}
  body.recall-focus .recall-empty{margin-top:18px}
}

/* V0.7 production update notice */
.atlas-update-notice{position:fixed;left:50%;bottom:18px;z-index:120;transform:translateX(-50%);display:grid;grid-template-columns:auto minmax(0,1fr) auto auto;align-items:center;gap:9px;width:min(720px,calc(100vw - 24px));padding:10px 12px;border:1px solid var(--line);border-radius:12px;background:rgba(255,253,250,.98);box-shadow:0 14px 44px rgba(44,38,30,.18)}.atlas-update-notice>span{font-size:8px;color:var(--red);font-weight:900}.atlas-update-notice>b{font-size:10px}.atlas-update-notice button{border:1px solid var(--line);background:#fffdfa;border-radius:8px;padding:6px 9px;font-size:9px}.atlas-update-notice #atlasUpdateNow{border-color:var(--red);color:var(--red);background:var(--red-soft);font-weight:800}@media(max-width:760px){.atlas-update-notice{bottom:8px;grid-template-columns:1fr auto;padding:9px}.atlas-update-notice>span,.atlas-update-notice #atlasUpdateLater{display:none}.atlas-update-notice>b{font-size:9px}}

/* ===== V0.7.1 mobile layout hardening / history snapshot ===== */
body.mobile-layout{overflow-x:hidden!important;max-width:100vw}
body.mobile-layout .app-shell,
body.mobile-layout .workspace,
body.mobile-layout .stage,
body.mobile-layout .stage-content{width:100%!important;max-width:100vw!important;min-width:0!important;box-sizing:border-box}
body.mobile-layout .app-shell{height:auto;min-height:100dvh;grid-template-rows:auto auto auto auto}
body.mobile-layout .topbar{position:sticky;top:0;z-index:40;grid-template-columns:minmax(0,1fr) auto!important;padding:8px 10px!important;gap:7px!important;background:rgba(248,245,239,.97)}
body.mobile-layout .brand-wrap{min-width:0}.mobile-layout .brand-title{font-size:15px}.mobile-layout .brand-sub{font-size:7px;white-space:nowrap}
body.mobile-layout .search-wrap{grid-column:1/3!important;height:36px}.mobile-layout .search-wrap input{font-size:12px}
body.mobile-layout .modebar{position:sticky;top:88px;z-index:35;height:44px;overflow-x:auto!important;overflow-y:hidden;padding:0 5px;scrollbar-width:none}
body.mobile-layout .modebar::-webkit-scrollbar{display:none}.mobile-layout .view-tabs{min-width:max-content}.mobile-layout .view-tab{height:44px;padding:0 10px;font-size:11px;white-space:nowrap}
body.mobile-layout .modebar-right{display:none!important}.mobile-layout .sidebar{display:none!important}.mobile-layout .workspace{display:block!important;padding:6px!important}
body.mobile-layout .stage{min-height:0!important;overflow:visible!important}.mobile-layout .stage-content{overflow:visible!important;padding:8px!important}
body.mobile-layout .timeline,
body.mobile-layout .matrix-wrap,
body.mobile-layout .theory-canvas,
body.mobile-layout .reform-lanes,
body.mobile-layout .graph-wrap{display:none!important;min-width:0!important}
body.mobile-layout .mobile-timeline,
body.mobile-layout .mobile-matrix,
body.mobile-layout .mobile-theory,
body.mobile-layout .mobile-reform,
body.mobile-layout .mobile-graph{display:block!important;min-width:0!important;width:100%!important}
body.mobile-layout .system-grid{min-width:0!important;width:100%!important;grid-template-columns:1fr!important}
body.mobile-layout .xi-topic-grid,
body.mobile-layout .xi-group.specific .xi-topic-grid{grid-template-columns:1fr!important;min-width:0!important}
body.mobile-layout .canonical-grid,
body.mobile-layout .confusion-grid,
body.mobile-layout .coverage-grid,
body.mobile-layout .quality-summary,
body.mobile-layout .compare-grid,
body.mobile-layout .compare-insight{grid-template-columns:1fr!important;min-width:0!important}
body.mobile-layout .reform-chain{overflow-x:visible!important}
body.mobile-layout img,body.mobile-layout svg,body.mobile-layout canvas{max-width:100%}
body.mobile-layout .detail:not(.mobile-open){pointer-events:none}
body.mobile-layout .time-dock{grid-template-columns:68px minmax(0,1fr)!important;width:100%;max-width:100vw;box-sizing:border-box}

.time-dock.active{border-top-color:var(--red);box-shadow:0 -4px 14px rgba(155,45,48,.08)}
.time-dock.active .time-dock-label span,.time-dock.active .time-dock-label b{color:var(--red)}
.history-snapshot-empty{border:1px dashed var(--line-strong);border-radius:10px;background:#fffdfa;padding:30px 18px;text-align:center}
.history-snapshot-empty b{font-size:15px}.history-snapshot-empty p{font-size:10px;color:var(--muted);line-height:1.7;margin:7px 0 0}

/* ===== V0.7.2 daily learning system ===== */
.recall-daily-panel{max-width:760px;margin:0 auto 10px;border:1px solid var(--line);background:#fffdfa;border-radius:12px;padding:11px 13px}.recall-daily-panel>header{display:flex;justify-content:space-between;align-items:flex-end;gap:12px}.recall-daily-panel>header span{display:block;font-size:8px;color:var(--muted);letter-spacing:.06em}.recall-daily-panel>header b{display:block;font-size:13px;margin-top:2px}.recall-daily-panel>header strong{font-family:Georgia,serif;font-size:22px;color:var(--red)}
.daily-progress{height:7px;border-radius:99px;background:#ebe4d8;overflow:hidden;margin:9px 0 10px}.daily-progress i{display:block;height:100%;background:var(--red);border-radius:inherit;transition:width .2s ease}.daily-detail-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}.daily-detail-grid>div{border:1px solid var(--line);background:var(--paper-2);border-radius:8px;padding:7px 8px}.daily-detail-grid span{display:block;color:var(--muted);font-size:7px}.daily-detail-grid b{display:block;font-size:12px;margin-top:2px}
.recall-settings{margin-top:8px;border-top:1px dashed var(--line);padding-top:7px}.recall-settings summary{cursor:pointer;color:var(--muted);font-size:8px;user-select:none}.recall-settings-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding-top:8px}.recall-settings-row label{display:flex;align-items:center;gap:6px;font-size:9px;font-weight:700}.recall-settings-row select{border:1px solid var(--line);background:#fff;border-radius:8px;padding:5px 7px;font-size:9px}.recall-settings-row>small{flex:1;min-width:200px;color:var(--muted);font-size:8px;line-height:1.5}.recall-backup-actions{display:flex;gap:5px}.recall-backup-actions button{border:1px solid var(--line);background:#fff;border-radius:12px;padding:5px 8px;font-size:8px}
.daily-study-grid{grid-template-columns:repeat(4,1fr)}.today-study-card{border-color:#d9a3a5!important;background:linear-gradient(145deg,#fffdfa,#fbf0ed)!important}.today-study-card b{color:var(--red)}
@media(max-width:900px){.daily-study-grid{grid-template-columns:1fr 1fr}.daily-study-grid .today-study-card{grid-column:1/3}.recall-daily-panel{max-width:none}.daily-detail-grid{grid-template-columns:1fr 1fr}.recall-settings-row>small{min-width:100%}}
@media(max-width:560px){.recall-daily-panel{padding:9px 10px}.recall-daily-panel>header strong{font-size:18px}.recall-settings-row{align-items:flex-start}.recall-backup-actions{width:100%}.recall-backup-actions button{flex:1}}
@media(max-width:900px) and (orientation:portrait),(hover:none) and (pointer:coarse) and (orientation:portrait){body.recall-focus .recall-daily-panel{margin:0 0 6px;padding:7px 9px;border-radius:9px}body.recall-focus .recall-daily-panel>header span{font-size:7px}body.recall-focus .recall-daily-panel>header b{font-size:10px}body.recall-focus .recall-daily-panel>header strong{font-size:16px}body.recall-focus .daily-progress{height:5px;margin:5px 0 0}body.recall-focus .daily-detail-grid,body.recall-focus .recall-settings{display:none!important}}