:root{--bg:#f3f1ec;--card:#fffefa;--text:#1d2428;--muted:#687075;--line:#d8d7d2;--soft:#ebe9e3;--dark:#344d5b}*{box-sizing:border-box}body{margin:0;font-family:Inter,"Noto Sans SC","PingFang SC",system-ui,sans-serif;background:var(--bg);color:var(--text)}a{color:inherit;text-decoration:none}.top{height:68px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 28px;position:sticky;top:0;z-index:10}.brand{font-weight:850;letter-spacing:-.03em}.nav{display:flex;gap:8px;align-items:center}.nav a,.nav button{border:1px solid var(--line);background:#fff;border-radius:10px;padding:9px 12px;font:inherit;font-size:13px;cursor:pointer}.wrap{max-width:1320px;margin:0 auto;padding:32px 24px 70px}.hero{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:24px}.hero h1{font-size:36px;letter-spacing:-.04em;margin:0 0 6px}.hero p{margin:0;color:var(--muted)}.range{display:flex;gap:6px}.range button{border:1px solid var(--line);background:#fff;padding:8px 11px;border-radius:9px;cursor:pointer}.range button.active{background:#17191c;color:#fff}.metric-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}.metric{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px}.metric b{display:block;font-size:28px;letter-spacing:-.04em}.metric span{display:block;font-size:12px;color:var(--muted);margin-top:7px}.layout{display:grid;grid-template-columns:1.55fr .85fr;gap:16px;margin-top:16px}.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px}.card h2{font-size:17px;margin:0 0 16px}.chart{height:220px;display:flex;align-items:end;gap:5px;border-bottom:1px solid var(--line);padding:12px 0}.bar{flex:1;min-width:4px;background:#1e2024;border-radius:5px 5px 0 0;opacity:.85;position:relative}.bar:hover:after{content:attr(data-tip);position:absolute;bottom:100%;left:50%;transform:translateX(-50%);white-space:nowrap;background:#111;color:#fff;padding:5px 7px;border-radius:6px;font-size:11px}.errors{display:grid;gap:10px}.error-row{display:grid;grid-template-columns:80px 1fr 36px;gap:10px;align-items:center;font-size:13px}.track{height:8px;background:var(--soft);border-radius:99px;overflow:hidden}.track i{display:block;height:100%;background:#24272b}.queue{margin-top:16px}.queue-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.queue-list{display:grid;gap:8px}.qrow{display:grid;grid-template-columns:1fr auto auto;gap:12px;align-items:center;padding:13px 14px;border:1px solid var(--line);border-radius:12px}.qrow strong{font-size:14px}.qrow small{display:block;color:var(--muted);margin-top:4px}.tag{font-size:11px;background:var(--soft);padding:5px 7px;border-radius:999px}.go{font-size:12px;border:1px solid var(--line);padding:7px 9px;border-radius:8px}.chapters{display:grid;gap:8px}.crow{display:grid;grid-template-columns:1fr 70px 60px;gap:10px;font-size:13px;padding:10px 0;border-bottom:1px solid #f0f1f2}.empty{color:var(--muted);font-size:13px;padding:18px 0}@media(max-width:1100px){.metric-grid{grid-template-columns:repeat(3,1fr)}.layout{grid-template-columns:1fr}}@media(max-width:650px){.top{padding:0 14px}.wrap{padding:22px 14px 60px}.hero{display:block}.range{margin-top:16px}.metric-grid{grid-template-columns:repeat(2,1fr)}.metric b{font-size:24px}.qrow{grid-template-columns:1fr auto}.qrow .tag{display:none}}

.subject-switch{display:flex;gap:8px;flex-wrap:wrap;margin:8px 0 18px}.subject-switch button{border:1px solid #dfe2e6;background:#fff;border-radius:999px;padding:8px 13px;font:inherit;font-size:12px;font-weight:750;color:#60666d;cursor:pointer}.subject-switch button.active{background:#24272b;color:#fff;border-color:#24272b}.eyebrow{font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:#8b9096;font-weight:800}

.queue-head{gap:16px}.queue-head h2{margin-bottom:3px}.queue-count{font-size:11px;color:var(--muted)}.queue-filter{display:grid;gap:5px;font-size:10px;color:var(--muted);font-weight:750}.queue-filter select{min-width:150px;border:1px solid var(--line);background:#fff;border-radius:9px;padding:8px 10px;font:inherit;color:var(--text)}.queue-tags{display:flex;gap:5px;flex-wrap:wrap;justify-content:flex-end}.teacher-tag,.value-tag,.band-tag,.quiet-badge{font-size:10px;line-height:1;border-radius:999px;padding:6px 8px;background:var(--soft);white-space:nowrap}.teacher-tag.must{font-weight:850}.teacher-tag.very_hard{border:1px dashed #c9cdd2;background:#fff}.value-tag{font-weight:900;background:#202226;color:#fff;min-width:27px;text-align:center}.band-tag{background:#f5f6f7;color:#676c73}.reason{margin-top:5px!important;color:#555b62!important}.evidence-card{margin-top:16px}.evidence-head{display:flex;align-items:center;justify-content:space-between;gap:16px}.evidence-head h2{margin:3px 0 0}.quiet-badge{color:#737980}.evidence-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:18px}.evidence-item{border:1px solid var(--line);border-radius:13px;padding:13px;display:flex;align-items:center;gap:11px}.value-big{width:34px;height:34px;border-radius:9px;background:#202226;color:#fff;display:grid;place-items:center;font-weight:900}.evidence-item b{font-size:13px}.evidence-item small{display:block;color:var(--muted);margin-top:3px}.evidence-note{color:var(--muted);font-size:12px;line-height:1.65;margin:14px 0 0}.source-warning{font-size:11px;color:#6a7077;background:#f5f6f7;border-radius:10px;padding:9px 11px;margin-top:10px}@media(max-width:760px){.queue-head{align-items:flex-start}.queue-filter select{min-width:132px}.evidence-grid{grid-template-columns:repeat(2,1fr)}.qrow{grid-template-columns:1fr auto}.queue-tags{grid-column:1/-1;justify-content:flex-start}.qrow .go{grid-column:2;grid-row:1}}

/* v9 Academic analysis — deliberate, opt-in, low-anxiety */
:root{--bg:#f3f1ec;--card:#fffefa;--text:#20272a;--muted:#727776;--line:#d8d5ce;--soft:#ece9e2;--dark:#2c3438;--accent:#344d5b}
body{background:var(--bg);color:var(--text)}
.top{height:62px;background:rgba(250,249,246,.94);border-bottom-color:var(--line);backdrop-filter:blur(12px)}.brand{font-family:"Songti SC","STSong","SimSun",serif;font-weight:700;letter-spacing:.02em}.nav a,.nav button{border-radius:4px;background:transparent;border-color:transparent}.nav a:hover,.nav button:hover{border-color:var(--line)}
.wrap{max-width:1180px;padding-top:46px}.subject-switch{border-bottom:1px solid var(--line);gap:18px;margin-bottom:30px}.subject-switch button{border:0;border-bottom:1px solid transparent;border-radius:0;background:transparent;padding:9px 1px;color:#737876}.subject-switch button.active{background:transparent;color:var(--text);border-color:#445b67}
.hero{align-items:start;margin-bottom:22px}.hero h1{font-family:"Songti SC","STSong","SimSun",serif;font-size:34px;letter-spacing:.02em;font-weight:700}.hero p{line-height:1.75}.range button{border-radius:4px;background:transparent}.range button.active{background:#344d5b;border-color:#344d5b}
.status-story{padding:28px 0 30px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:8px 0 18px}.story-kicker{font-size:9px;letter-spacing:.14em;color:#919591;font-weight:700}.status-story h2{font-family:"Songti SC","STSong","SimSun",serif;font-size:24px;font-weight:700;line-height:1.5;margin:10px 0 8px;max-width:800px}.status-story p{margin:0;max-width:820px;color:#6f7574;font-size:13px;line-height:1.8}
.metrics-disclosure{margin:0 0 22px;border-bottom:1px solid var(--line);padding-bottom:18px}.metrics-disclosure>summary{list-style:none;cursor:pointer;font-size:12px;color:#59666c;width:max-content;padding:6px 0}.metrics-disclosure>summary::-webkit-details-marker{display:none}.metrics-disclosure>summary:after{content:' ＋';color:#9a9c98}.metrics-disclosure[open]>summary:after{content:' －'}.metric-grid{grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line);border-left:1px solid var(--line);margin-top:12px}.metric{border:0;border-right:1px solid var(--line);border-bottom:1px solid var(--line);border-radius:0;background:transparent;padding:18px 20px}.metric b{font-family:Georgia,"Times New Roman",serif;font-size:25px;font-weight:500}.metric span{line-height:1.55}
.layout{gap:18px}.card{border-radius:5px;background:var(--card);border-color:var(--line);padding:22px;box-shadow:none}.card h2{font-family:"Songti SC","STSong","SimSun",serif;font-size:18px;font-weight:700}.chart{border-color:#d9d6cf}.bar{background:#526772;border-radius:2px 2px 0 0;opacity:.72}.track{height:5px;background:#ece9e2}.track i{background:#657983}.error-row{color:#4f595d}.qrow{border-radius:4px;background:transparent;padding:14px 12px}.tag,.teacher-tag,.value-tag,.band-tag,.quiet-badge{border-radius:3px}.value-tag{background:#35454d}.go{border-radius:4px}.crow{grid-template-columns:1fr 60px 50px}.crow b{font-family:Georgia,"Times New Roman",serif;font-weight:500}.evidence-item{border-radius:4px;background:transparent}.value-big{border-radius:3px;background:#35454d}.source-warning{border-radius:3px;background:#f0eee8}.evidence-note{line-height:1.8}
@media(max-width:760px){.wrap{padding-top:28px}.hero h1{font-size:29px}.metric-grid{grid-template-columns:1fr 1fr}.status-story h2{font-size:21px}.card{padding:17px}}

/* v10 — quiet insight layer */
.hero-tools{display:flex;align-items:flex-end;gap:14px;flex-wrap:wrap}.chapter-filter{display:flex;flex-direction:column;gap:6px;font-size:11px;color:var(--muted)}.chapter-filter select{min-width:210px;border:1px solid var(--line);background:transparent;color:var(--text);border-radius:4px;padding:8px 30px 8px 10px;font:inherit}.hidden{display:none!important}.insight-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:18px;margin-top:18px}.card-head{display:flex;justify-content:space-between;align-items:flex-start;gap:18px;margin-bottom:14px}.card-head h2{margin:4px 0 0}.clusters{display:grid;gap:0;border-top:1px solid var(--line)}.cluster-row{display:grid;grid-template-columns:1fr auto;gap:16px;padding:14px 2px;border-bottom:1px solid var(--line);align-items:center}.cluster-row strong{font-family:"Songti SC","STSong","SimSun",serif;font-weight:700;font-size:15px}.cluster-row span,.cluster-row small{display:block;margin-top:4px;color:var(--muted);font-size:12px;line-height:1.6}.cluster-row small{color:#555f62}.cluster-row a{font-size:11px;color:#536872;white-space:nowrap}.chapter-story{font-family:"Songti SC","STSong","SimSun",serif;font-size:18px;line-height:1.75;margin:4px 0 18px;color:#364247}.chapter-details{border-top:1px solid var(--line);padding-top:12px}.chapter-details>summary{list-style:none;cursor:pointer;font-size:12px;color:#5e696c;width:max-content}.chapter-details>summary::-webkit-details-marker{display:none}.chapter-details>summary:after{content:' ＋';color:#939795}.chapter-details[open]>summary:after{content:' －'}.chapter-detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:0;margin-top:13px;border-top:1px solid var(--line);border-left:1px solid var(--line)}.chapter-detail-grid>div{padding:13px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.chapter-detail-grid b{display:block;font-family:Georgia,"Times New Roman",serif;font-size:21px;font-weight:500}.chapter-detail-grid span{display:block;margin-top:5px;font-size:11px;color:var(--muted)}.crow{width:100%;border:0;background:transparent;text-align:left;color:inherit;cursor:pointer;font:inherit}.crow:hover{background:rgba(70,83,87,.035)}
@media(max-width:900px){.insight-layout{grid-template-columns:1fr}.hero{align-items:flex-start;flex-direction:column}.hero-tools{width:100%;justify-content:space-between}.chapter-filter{flex:1}.chapter-filter select{width:100%}}
@media(max-width:620px){.hero-tools{align-items:stretch;flex-direction:column}.range{width:100%}.range button{flex:1}.cluster-row{grid-template-columns:1fr}.cluster-row a{justify-self:start}.chapter-detail-grid{grid-template-columns:1fr 1fr}}