/* ===== base (original dark tokens, overridden below) ===== */
@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Manrope:wght@400;500;600;700;800&family=Noto+Sans+SC:wght@400;500;600;700;800;900&display=swap');
:root{
  --bg:#071018;--bg-soft:#0b1722;--panel:#0e1d2a;--panel-2:#122536;--line:rgba(176,215,231,.13);
  --text:#eef8fb;--muted:#93aab8;--quiet:#607785;--teal:#58e0c4;--lime:#c8f36a;--purple:#aa92ff;
  --orange:#ffb86a;--danger:#ff7d86;--shadow:0 22px 70px rgba(0,0,0,.25);--radius:20px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:'Noto Sans SC',Manrope,sans-serif;line-height:1.6}body:before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.33;background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(to bottom,black,transparent 85%)}
a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;cursor:pointer}button:focus-visible,a:focus-visible{outline:2px solid var(--lime);outline-offset:4px}.mono{font-family:'DM Mono',monospace}.eyebrow{font:500 11px/1.2 'DM Mono',monospace;letter-spacing:.12em;text-transform:uppercase;color:var(--teal)}
.topbar{height:72px;position:fixed;z-index:20;top:0;left:0;right:0;display:flex;align-items:center;gap:18px;padding:0 30px;background:rgba(7,16,24,.84);border-bottom:1px solid var(--line);backdrop-filter:blur(20px)}.brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:-.03em}.brand-mark{width:28px;height:28px;border-radius:9px;background:linear-gradient(135deg,var(--teal),var(--lime));position:relative;box-shadow:0 0 24px rgba(88,224,196,.3)}.brand-mark:after{content:"";position:absolute;left:8px;top:7px;width:12px;height:14px;border:2px solid var(--bg);border-top:0;border-radius:2px 2px 5px 5px;transform:skewY(-20deg)}.topbar-spacer{flex:1}.topbar-note{color:var(--muted);font-size:12px}.icon-btn{border:1px solid var(--line);background:rgba(255,255,255,.03);border-radius:11px;padding:8px 12px;font-size:12px;display:inline-flex;align-items:center;gap:7px}.icon-btn:hover{border-color:rgba(88,224,196,.5);background:rgba(88,224,196,.08)}.completion-btn{margin-top:13px;font-size:11px;color:var(--muted)}.completion-btn[aria-pressed="true"]{color:var(--teal);border-color:rgba(88,224,196,.45)}
.layout{display:grid;grid-template-columns:260px minmax(0,1fr);min-height:100vh}.sidebar{position:fixed;top:72px;bottom:0;width:260px;padding:28px 18px 24px;border-right:1px solid var(--line);background:rgba(8,18,28,.7);overflow:auto}.side-label{padding:0 12px 12px;color:var(--quiet);font:500 10px 'DM Mono',monospace;letter-spacing:.14em;text-transform:uppercase}.chapter-nav{display:flex;flex-direction:column;gap:5px}.chapter-nav a{display:flex;gap:12px;align-items:flex-start;padding:10px 12px;border-radius:12px;color:var(--muted);font-size:13px;transition:.2s}.chapter-nav a span:last-child{display:grid;gap:2px;min-width:0}.chapter-nav a b{font-size:13px;font-weight:700}.chapter-nav a small{display:block;color:var(--quiet);font-size:10px;line-height:1.35}.chapter-nav a.done small{color:var(--teal)}.chapter-nav a:hover{background:rgba(255,255,255,.04);color:var(--text)}.chapter-nav a.active{background:linear-gradient(90deg,rgba(88,224,196,.15),transparent);color:var(--text);box-shadow:inset 2px 0 var(--teal)}.chapter-nav .num{font:500 11px 'DM Mono',monospace;color:var(--quiet);min-width:24px;padding-top:2px}.chapter-nav a.active .num{color:var(--teal)}.progress-wrap{margin:28px 12px 0;padding-top:20px;border-top:1px solid var(--line)}.progress-head{display:flex;justify-content:space-between;color:var(--muted);font-size:11px}.progress-track{height:4px;background:rgba(255,255,255,.08);border-radius:9px;overflow:hidden;margin-top:9px}.progress-fill{height:100%;width:0;background:linear-gradient(90deg,var(--teal),var(--lime));transition:.3s}
.main{grid-column:2;padding:72px 44px 80px;min-width:0}.section{max-width:1120px;margin:0 auto;padding:92px 0 20px;scroll-margin-top:80px}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px}.section-title{font-size:clamp(26px,3vw,42px);line-height:1.1;letter-spacing:-.045em;margin:6px 0 0}.section-desc{max-width:620px;color:var(--muted);font-size:15px}.section-rule{height:1px;background:var(--line);margin-top:10px}
.hero{max-width:1120px;min-height:calc(100vh - 72px);margin:0 auto;display:grid;grid-template-columns:1.03fr .97fr;align-items:center;gap:60px;padding:80px 0 45px}.hero h1{font-size:clamp(48px,7vw,88px);line-height:1.02;letter-spacing:-.08em;margin:17px 0 22px;max-width:650px}.hero h1 em{font-style:normal;color:var(--teal)}.hero-lead{font-size:18px;color:#bdd0d8;max-width:590px;margin:0 0 30px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.primary-btn,.secondary-btn{border-radius:12px;padding:12px 17px;font-size:13px;font-weight:700;border:1px solid transparent}.primary-btn{background:var(--lime);color:#0a151b}.primary-btn:hover{filter:brightness(1.06);transform:translateY(-1px)}.secondary-btn{border-color:var(--line);background:rgba(255,255,255,.035)}.secondary-btn:hover{background:rgba(255,255,255,.08)}.hero-meta{display:flex;gap:23px;flex-wrap:wrap;margin-top:42px;color:var(--muted);font-size:12px}.hero-meta strong{display:block;color:var(--text);font-size:18px;letter-spacing:-.03em}.console{position:relative;padding:20px;border:1px solid rgba(88,224,196,.22);border-radius:25px;background:linear-gradient(150deg,rgba(16,42,54,.9),rgba(10,23,34,.94));box-shadow:var(--shadow);overflow:hidden}.console:before{content:"";position:absolute;inset:-30% -10% auto auto;width:260px;height:260px;background:radial-gradient(circle,rgba(88,224,196,.22),transparent 67%)}.console-head{display:flex;align-items:center;gap:8px;color:var(--muted);font:500 11px 'DM Mono',monospace}.console-dot{width:7px;height:7px;border-radius:50%;background:var(--teal);box-shadow:0 0 14px var(--teal)}.console-title{font-size:21px;font-weight:700;letter-spacing:-.04em;margin:25px 0 18px}.console-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.signal{padding:15px;border:1px solid var(--line);background:rgba(255,255,255,.035);border-radius:14px}.signal span{display:block;color:var(--muted);font-size:11px}.signal strong{display:block;margin-top:6px;font-size:21px;letter-spacing:-.05em}.signal strong.teal{color:var(--teal)}.signal strong.lime{color:var(--lime)}.console-flow{display:flex;align-items:center;gap:7px;margin-top:19px;color:var(--muted);font-size:11px}.flow-line{flex:1;height:1px;background:linear-gradient(90deg,var(--teal),var(--purple));opacity:.7}.console-foot{display:flex;justify-content:space-between;margin-top:22px;color:var(--quiet);font-size:10px}
.path-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.path-card{position:relative;min-height:150px;padding:16px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.025);transition:.2s}.path-card:hover{transform:translateY(-3px);border-color:rgba(88,224,196,.4)}.path-card .path-num{font:500 11px 'DM Mono',monospace;color:var(--teal)}.path-card h3{font-size:16px;margin:16px 0 8px;letter-spacing:-.03em}.path-card p{font-size:11px;color:var(--muted);margin:0}.path-card .path-arrow{position:absolute;right:14px;bottom:14px;color:var(--quiet)}
.boundary-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.boundary-card{padding:22px;border-radius:18px;border:1px solid var(--line);background:rgba(255,255,255,.025)}.boundary-card.good{border-color:rgba(88,224,196,.35)}.boundary-card.bad{border-color:rgba(255,125,134,.3)}.boundary-card h3{margin:0 0 12px;font-size:18px}.boundary-card ul{list-style:none;padding:0;margin:0;display:grid;gap:9px}.boundary-card li{font-size:13px;color:var(--muted);padding-left:18px;position:relative}.boundary-card.good li:before{content:"＋";position:absolute;left:0;color:var(--teal)}.boundary-card.bad li:before{content:"－";position:absolute;left:0;color:var(--danger)}.decision-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}.decision{padding:17px;border-radius:15px;border-left:3px solid var(--teal);background:rgba(88,224,196,.08)}.decision:nth-child(2){border-color:var(--orange);background:rgba(255,184,106,.07)}.decision:nth-child(3){border-color:var(--danger);background:rgba(255,125,134,.07)}.decision b{display:block;font-size:14px}.decision span{display:block;color:var(--muted);font-size:11px;margin-top:5px}
.matrix-wrap{display:grid;grid-template-columns:1fr 290px;gap:14px}.matrix{display:grid;grid-template-columns:repeat(2,1fr);grid-template-rows:repeat(2,1fr);min-height:360px;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:rgba(255,255,255,.02)}.matrix-cell{padding:20px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);position:relative}.matrix-cell:nth-child(2n){border-right:0}.matrix-cell:nth-child(n+3){border-bottom:0}.matrix-cell h4{font-size:15px;margin:0 0 8px}.matrix-cell p{font-size:11px;color:var(--muted);max-width:200px;margin:0}.matrix-cell.priority{background:linear-gradient(140deg,rgba(88,224,196,.15),rgba(88,224,196,.03))}.matrix-cell.priority:after{content:"优先试点";position:absolute;top:16px;right:16px;font:500 10px 'DM Mono',monospace;color:var(--teal)}.axis-label{font:500 10px 'DM Mono',monospace;color:var(--quiet);margin-top:8px;text-align:center}.score-card{padding:20px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.025)}.score-card h3{margin:0 0 14px;font-size:17px}.score-row{display:flex;justify-content:space-between;padding:11px 0;border-bottom:1px solid var(--line);font-size:12px;color:var(--muted)}.score-row strong{color:var(--text)}.score-total{display:flex;justify-content:space-between;margin-top:16px;font-size:13px}.score-total strong{font-size:25px;color:var(--lime)}
.case-tabs,.tool-tabs{display:flex;gap:8px;overflow:auto;padding-bottom:5px;margin-bottom:15px}.tab{white-space:nowrap;padding:9px 13px;border:1px solid var(--line);background:transparent;border-radius:10px;color:var(--muted);font-size:12px}.tab[aria-selected="true"]{color:var(--bg);border-color:var(--teal);background:var(--teal);font-weight:700}.case-panel{display:grid;grid-template-columns:1.02fr .98fr;gap:14px}.case-main,.case-side{padding:23px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.025)}.case-main h3{margin:5px 0 14px;font-size:25px;letter-spacing:-.045em}.case-main p{color:var(--muted);font-size:13px}.case-flow{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:23px 0 5px}.flow-chip{padding:8px 11px;background:rgba(255,255,255,.06);border-radius:8px;font-size:11px}.flow-chip.active{color:var(--bg);background:var(--lime);font-weight:700}.case-side h4{font-size:13px;margin:0 0 9px;color:var(--muted)}.case-side .check-list{display:grid;gap:8px;margin-bottom:21px}.check-list div{font-size:12px;padding-left:17px;position:relative}.check-list div:before{content:"✓";position:absolute;left:0;color:var(--teal)}.metric{padding:14px;background:rgba(200,243,106,.08);border-radius:12px}.metric span{display:block;color:var(--muted);font-size:10px}.metric strong{display:block;color:var(--lime);font-size:15px;margin-top:4px}.prompt-box{margin-top:14px;padding:16px;background:#08131b;border:1px solid var(--line);border-radius:13px}.prompt-label{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:10px;margin-bottom:8px}.prompt-text{font:12px/1.7 'DM Mono',monospace;color:#cfe7ed;white-space:pre-wrap}.copy-btn{border:0;background:rgba(88,224,196,.12);color:var(--teal);border-radius:8px;padding:6px 9px;font-size:11px}.copy-btn:hover{background:rgba(88,224,196,.22)}
.tool-layout{display:grid;grid-template-columns:1fr 1fr;gap:14px}.tool-panel{padding:23px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.025)}.tool-panel h3{font-size:25px;margin:5px 0 10px;letter-spacing:-.045em}.tool-kicker{display:inline-flex;align-items:center;gap:7px;color:var(--muted);font-size:11px}.tool-kicker i{width:8px;height:8px;background:var(--teal);border-radius:50%}.tool-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px}.tool-fact{padding:13px;border-radius:12px;background:rgba(255,255,255,.045)}.tool-fact span{font-size:10px;color:var(--quiet);display:block}.tool-fact p{font-size:12px;margin:5px 0 0;color:var(--muted)}.tool-caution{margin-top:16px;padding:12px 14px;border-left:2px solid var(--orange);background:rgba(255,184,106,.06);color:var(--muted);font-size:11px}.other-tools{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.other-tool{padding:14px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.02)}.other-tool b{display:block;font-size:14px}.other-tool span{font-size:11px;color:var(--muted)}
.lab-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}.lab-card{padding:16px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.025);min-height:155px}.lab-card .lab-num{color:var(--purple);font:500 11px 'DM Mono',monospace}.lab-card h3{font-size:14px;margin:15px 0 7px}.lab-card p{color:var(--muted);font-size:11px;margin:0}.lab-card button{margin-top:14px;width:100%}
.agent-ladder{display:grid;grid-template-columns:repeat(5,1fr);gap:0;margin:20px 0 25px}.agent-step{position:relative;padding:18px 14px 16px;border-top:2px solid var(--line);text-align:center}.agent-step:after{content:"→";position:absolute;right:-6px;top:13px;color:var(--quiet)}.agent-step:last-child:after{display:none}.agent-step.active{border-color:var(--teal)}.agent-step b{display:block;font-size:13px}.agent-step span{display:block;color:var(--muted);font-size:10px;margin-top:5px}.canvas{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.canvas-item{padding:15px;border:1px solid var(--line);border-radius:13px;background:rgba(255,255,255,.025)}.canvas-item span{display:block;color:var(--teal);font:500 10px 'DM Mono',monospace;text-transform:uppercase}.canvas-item p{font-size:12px;color:var(--muted);margin:8px 0 0}.canvas-item.wide{grid-column:span 2}.canvas-item.highlight{border-color:rgba(200,243,106,.35);background:rgba(200,243,106,.06)}
.safety-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.safety-list{display:grid;gap:9px}.safety-item{display:flex;gap:12px;align-items:flex-start;padding:14px;border:1px solid var(--line);border-radius:13px;background:rgba(255,255,255,.025)}.safety-icon{width:25px;height:25px;display:grid;place-items:center;border-radius:8px;background:rgba(88,224,196,.12);color:var(--teal);font-size:13px}.safety-item b{display:block;font-size:13px}.safety-item span{display:block;color:var(--muted);font-size:11px;margin-top:3px}.roi{padding:22px;border:1px solid rgba(200,243,106,.22);border-radius:18px;background:linear-gradient(145deg,rgba(200,243,106,.1),rgba(255,255,255,.025))}.roi h3{margin:0;font-size:20px}.roi p{color:var(--muted);font-size:12px}.roi-equation{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:22px 0}.roi-equation span{padding:10px 12px;border:1px solid var(--line);border-radius:9px;font-size:11px}.roi-equation strong{color:var(--lime);font-size:21px}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.week{padding:19px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.025)}.week:first-child{border-top:2px solid var(--teal)}.week:nth-child(2){border-top:2px solid var(--purple)}.week:nth-child(3){border-top:2px solid var(--orange)}.week:nth-child(4){border-top:2px solid var(--lime)}.week small{font:500 10px 'DM Mono',monospace;color:var(--quiet)}.week h3{margin:12px 0 7px;font-size:16px}.week p{color:var(--muted);font-size:11px;margin:0}.week ul{list-style:none;padding:0;margin:13px 0 0;display:grid;gap:7px}.week li{font-size:11px;color:#bed0d6;padding-left:14px;position:relative}.week li:before{content:"·";position:absolute;left:2px;color:var(--teal);font-size:17px;line-height:13px}
.resource-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.resource{padding:16px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.025)}.resource-type{font:500 10px 'DM Mono',monospace;color:var(--purple);text-transform:uppercase}.resource h3{font-size:14px;margin:10px 0 5px}.resource p{font-size:11px;color:var(--muted);margin:0 0 10px}.resource a{font-size:11px;color:var(--teal)}.resource time{display:block;color:var(--quiet);font-size:10px;margin-top:9px}
.opening-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:14px}.opening-card,.concept-card,.responsibility-card{padding:22px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.025)}.opening-card h3{margin:4px 0 12px;font-size:22px;letter-spacing:-.04em}.opening-card p{color:var(--muted);font-size:13px}.opening-script{margin-top:16px;padding:15px;border-left:3px solid var(--lime);background:rgba(200,243,106,.07);color:#dbe9d2;font-size:13px}.opening-points{display:grid;gap:10px}.opening-point{padding:14px;border-radius:13px;background:rgba(88,224,196,.07)}.opening-point b{display:block;font-size:13px}.opening-point span{display:block;color:var(--muted);font-size:11px;margin-top:4px}.concept-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.concept-card{min-height:215px}.concept-card .concept-icon{font:500 11px 'DM Mono',monospace;color:var(--teal)}.concept-card h3{margin:14px 0 8px;font-size:19px}.concept-card p{margin:0;color:var(--muted);font-size:12px}.concept-card .analogy{margin-top:14px;padding-top:12px;border-top:1px solid var(--line);color:#cde0e6;font-size:11px}.responsibility-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}.responsibility-card{padding:17px}.responsibility-card h3{margin:0 0 7px;font-size:15px}.responsibility-card p{margin:0;color:var(--muted);font-size:11px}.responsibility-card strong{display:block;color:var(--lime);font-size:12px;margin-top:10px}
.footer{max-width:1120px;margin:70px auto 0;padding:25px 0 0;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;color:var(--quiet);font-size:11px}.mobile-menu{display:none}.toast{position:fixed;z-index:50;right:24px;bottom:24px;padding:11px 15px;border-radius:10px;background:var(--lime);color:#08131a;font-size:12px;font-weight:700;opacity:0;transform:translateY(10px);pointer-events:none;transition:.25s}.toast.show{opacity:1;transform:translateY(0)}
body.presenter-mode .sidebar{display:none}body.presenter-mode .layout{display:block}body.presenter-mode .main{padding-left:6vw;padding-right:6vw}.presenter-mode .section{max-width:1280px}.presenter-mode .section-title{font-size:clamp(34px,4vw,58px)}.presenter-mode .hero h1{font-size:clamp(60px,9vw,120px)}
@media(max-width:1050px){.main{padding-left:28px;padding-right:28px}.hero{gap:30px}.path-grid{grid-template-columns:repeat(3,1fr)}.lab-grid{grid-template-columns:repeat(3,1fr)}.matrix-wrap{grid-template-columns:1fr}.score-card{display:block}.concept-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){.topbar{height:62px;padding:0 16px}.topbar-note{display:none}.mobile-menu{display:inline-flex}.layout{display:block}.sidebar{display:none;top:62px;width:280px;z-index:30;background:#0a1722;box-shadow:var(--shadow)}.sidebar.open{display:block}.main{padding:62px 16px 50px}.section{padding-top:70px}.section-head{display:block}.section-desc{margin-top:12px}.hero{display:block;min-height:auto;padding:70px 0 25px}.hero h1{font-size:clamp(48px,15vw,72px)}.hero-lead{font-size:16px}.console{margin-top:40px}.hero-meta{margin-top:30px}.path-grid,.boundary-grid,.case-panel,.tool-layout,.safety-grid,.opening-grid,.responsibility-grid{grid-template-columns:1fr}.path-card{min-height:125px}.decision-strip,.timeline{grid-template-columns:1fr 1fr}.matrix{min-height:470px}.lab-grid{grid-template-columns:1fr 1fr}.other-tools,.resource-grid{grid-template-columns:1fr 1fr}.concept-grid{grid-template-columns:1fr 1fr}.agent-ladder{grid-template-columns:1fr;gap:0}.agent-step{text-align:left;border-top:0;border-left:2px solid var(--line);padding:13px 16px}.agent-step:after{content:"↓";right:auto;left:8px;top:auto;bottom:-9px}.canvas{grid-template-columns:1fr 1fr}.canvas-item.wide{grid-column:span 2}.footer{display:block}.footer span{display:block;margin-top:8px}}
@media(max-width:430px){.decision-strip,.timeline,.lab-grid,.other-tools,.resource-grid,.tool-grid,.canvas,.concept-grid{grid-template-columns:1fr}.canvas-item.wide{grid-column:auto}.console-grid{grid-template-columns:1fr 1fr}.main{padding-left:14px;padding-right:14px}.section-title{font-size:30px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* ===== ux-refresh: light study surface (active theme) ===== */
/* Course workspace refresh: a calmer study surface with one strong action color. */
:root{
  --bg:#f3f7f5;--bg-soft:#e8f0ed;--panel:#ffffff;--panel-2:#eef5f2;--line:#d6e3de;
  --text:#122b25;--muted:#58716a;--quiet:#789089;--teal:#087f6e;--lime:#d4ef69;
  --purple:#6758c9;--orange:#d9653c;--danger:#c94b56;--shadow:0 18px 45px rgba(18,43,37,.10);--radius:16px;
}
html{background:var(--bg)}
body{background:var(--bg);color:var(--text);font-size:15px}
body:before{opacity:.16;background-image:linear-gradient(rgba(18,43,37,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(18,43,37,.08) 1px,transparent 1px);mask-image:linear-gradient(to bottom,black,transparent 60%)}
button,a{touch-action:manipulation}
.topbar{height:68px;padding:0 clamp(16px,4vw,48px);background:rgba(255,255,255,.92);border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}
.brand{color:var(--text);font-size:14px}.brand-mark{width:30px;height:30px;border-radius:10px;background:var(--teal);box-shadow:0 5px 14px rgba(8,127,110,.2)}.brand-mark:after{border-color:#fff}
.topbar-note{color:var(--muted);font-size:12px}.icon-btn{min-height:44px;padding:8px 13px;border-color:var(--line);background:var(--panel);color:var(--text);border-radius:10px;transition:background .2s,border-color .2s,transform .2s}.icon-btn:hover{border-color:var(--teal);background:var(--panel-2);transform:translateY(-1px)}
.layout{grid-template-columns:248px minmax(0,1fr)}
.sidebar{top:68px;width:248px;padding:28px 16px 24px;background:rgba(248,251,249,.92);border-right:1px solid var(--line)}
.side-label{color:var(--quiet)}.chapter-nav{gap:4px}.chapter-nav a{padding:11px 12px;color:var(--muted);border-radius:10px}.chapter-nav a:hover{background:var(--panel-2);color:var(--text)}.chapter-nav a.active{background:#dff2eb;color:var(--text);box-shadow:inset 3px 0 var(--teal)}.chapter-nav .num{color:var(--quiet)}.chapter-nav a.active .num{color:var(--teal)}.chapter-nav a.done small{color:var(--teal)}
.progress-wrap{border-color:var(--line)}.progress-track{background:#dbe6e1}.progress-fill{background:var(--teal)}
.main{padding:68px clamp(18px,4vw,56px) 80px}.section{max-width:1160px;padding:82px 0 28px}.section-head{margin-bottom:26px}.section-title{font-size:clamp(28px,3.2vw,44px);line-height:1.16;letter-spacing:-.045em;color:var(--text)}.section-desc{color:var(--muted);font-size:14px;line-height:1.75}.eyebrow{color:var(--teal);font-size:11px;letter-spacing:.14em}
.hero{max-width:1160px;min-height:calc(100vh - 68px);gap:clamp(34px,6vw,72px);padding:76px 0 52px}.hero h1{font-size:clamp(46px,6vw,78px);line-height:1.08;letter-spacing:-.065em;color:var(--text);margin:15px 0 20px}.hero h1 em{color:var(--teal)}.hero-lead{font-size:17px;line-height:1.8;color:var(--muted);max-width:560px}.hero-actions{gap:10px}.primary-btn,.secondary-btn{min-height:46px;padding:11px 17px;border-radius:10px;transition:transform .2s,background .2s,box-shadow .2s}.primary-btn{background:var(--teal);color:#fff;box-shadow:0 8px 18px rgba(8,127,110,.2)}.primary-btn:hover{filter:none;background:#066b5d;transform:translateY(-2px);box-shadow:0 10px 22px rgba(8,127,110,.25)}.secondary-btn{border-color:var(--line);background:var(--panel);color:var(--text)}.secondary-btn:hover{background:var(--panel-2);transform:translateY(-1px)}.hero-meta{gap:26px;margin-top:34px;color:var(--muted)}.hero-meta strong{color:var(--text);font-size:21px}.hero-note{display:flex;align-items:center;gap:8px;margin-top:24px;color:var(--muted);font-size:12px}.hero-note:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 4px rgba(217,101,60,.12)}
.primary-btn:active,.secondary-btn:active,.icon-btn:active,.tab:active,.copy-btn:active{transform:scale(.98)}
.signature-band{max-width:1160px;margin:0 auto;padding:22px 0 14px}.signature-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:16px}.signature-title{margin:5px 0 0;font-size:clamp(24px,3vw,36px);line-height:1.2;letter-spacing:-.045em}.signature-desc{max-width:520px;margin:0;color:var(--muted);font-size:13px;line-height:1.7}.signature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.signature-card{position:relative;min-height:190px;padding:22px 23px 20px;border:1px solid var(--line);border-radius:16px;background:var(--panel);box-shadow:0 7px 18px rgba(18,43,37,.05);overflow:hidden}.signature-card > *{position:relative;z-index:1}.signature-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--teal);font:500 10px/1.2 'DM Mono',monospace;letter-spacing:.12em;text-transform:uppercase}.signature-card:nth-child(2) .signature-kicker{color:var(--orange)}.signature-kicker:before{content:"01";display:grid;place-items:center;width:24px;height:24px;border-radius:8px;background:#dff2eb;color:var(--teal);font-size:10px}.signature-card:nth-child(2) .signature-kicker:before{content:"02";background:#fff0e7;color:var(--orange)}.signature-card h3{margin:16px 0 8px;font-size:19px;letter-spacing:-.035em}.signature-card p{margin:0;max-width:500px;color:var(--muted);font-size:12px;line-height:1.75}.signature-flow{display:flex;gap:7px;flex-wrap:wrap;margin-top:16px}.signature-flow span{padding:7px 9px;border-radius:8px;background:var(--panel-2);color:var(--text);font-size:11px}.signature-flow b{color:var(--quiet);font-weight:500;align-self:center}
.console{padding:24px;border:0;border-radius:18px;background:#143f36;box-shadow:0 22px 48px rgba(18,63,54,.24)}.console:before{display:none}.console-head{color:#a9cbc1}.console-dot{background:var(--lime);box-shadow:0 0 14px rgba(212,239,105,.7)}.console-title{font-size:24px;margin:30px 0 20px;color:#f6fffb}.signal{padding:16px;border-color:rgba(255,255,255,.14);background:rgba(255,255,255,.07);border-radius:12px}.signal span{color:#a9cbc1}.signal strong{color:#f6fffb}.signal strong.teal{color:#72e3c9}.signal strong.lime{color:var(--lime)}.console-flow{color:#a9cbc1}.flow-line{background:rgba(212,239,105,.55)}.console-foot{color:#89aea3}
.path-grid{grid-template-columns:repeat(4,1fr);gap:12px}.path-card{min-height:164px;padding:18px;border-color:var(--line);border-radius:14px;background:var(--panel);box-shadow:0 7px 18px rgba(18,43,37,.05);transition:transform .2s,border-color .2s,box-shadow .2s}.path-card:hover{transform:translateY(-3px);border-color:#8acbb8;box-shadow:0 12px 25px rgba(18,43,37,.1)}.path-card h3{font-size:16px;color:var(--text)}.path-card p{color:var(--muted)}.path-card .path-arrow{color:var(--teal)}
.boundary-card,.matrix,.score-card,.case-main,.case-side,.tool-panel,.lab-card,.canvas-item,.safety-item,.opening-card,.concept-card,.responsibility-card,.week,.resource,.other-tool{border-color:var(--line);background:var(--panel);box-shadow:0 7px 18px rgba(18,43,37,.045)}.boundary-card.good{border-color:#9ed8c8}.boundary-card.bad{border-color:#e5b5b7}.boundary-card li{color:var(--muted)}.boundary-card.good li:before{color:var(--teal)}.boundary-card.bad li:before{color:var(--danger)}.opening-script{background:#edf8df;border-color:var(--lime);color:#486340}.decision{background:#e6f5f0;border-color:var(--teal)}.decision:nth-child(2){background:#fff2e6;border-color:var(--orange)}.decision:nth-child(3){background:#ffedef;border-color:var(--danger)}.decision span,.opening-point span{color:var(--muted)}
.matrix{overflow:hidden}.matrix-cell{border-color:var(--line)}.matrix-cell.priority{background:#e2f4ed}.matrix-cell.priority:after{color:var(--teal)}.matrix-cell h4{color:var(--text)}.matrix-cell p,.axis-label,.score-row{color:var(--muted)}.score-row{border-color:var(--line)}.score-row strong,.score-total{color:var(--text)}.score-total strong{color:var(--orange)}
.tab{min-height:44px;padding:9px 14px;border-color:var(--line);color:var(--muted);background:var(--panel);border-radius:10px}.tab:hover{border-color:#8acbb8;color:var(--text)}.tab[aria-selected="true"]{background:var(--teal);border-color:var(--teal);color:#fff}.case-main h3,.tool-panel h3{color:var(--text)}.case-main p,.tool-fact p,.case-side h4,.resource p,.week p,.concept-card p,.responsibility-card p{color:var(--muted)}.flow-chip{background:var(--panel-2);color:var(--text)}.flow-chip.active{background:var(--lime);color:var(--text)}.prompt-box{background:#102a25;border-color:#2f5c51}.prompt-text{color:#d8eee7}.copy-btn{min-height:36px;background:#dff2eb;color:var(--teal);border:1px solid #b9ddd2;cursor:pointer}.copy-btn:hover{background:#cde9df}.tool-fact,.other-tool,.metric{background:var(--panel-2)}.tool-fact span,.tool-kicker,.safety-item span,.week small,.resource time{color:var(--quiet)}.tool-caution{background:#fff4e8;border-color:var(--orange);color:#76584b}.lab-card .lab-num,.resource-type{color:var(--purple)}.agent-step{border-color:var(--line)}.agent-step.active{border-color:var(--teal)}.agent-step span{color:var(--muted)}.canvas-item span{color:var(--teal)}.canvas-item p{color:var(--muted)}.canvas-item.highlight{background:#f1f8d9;border-color:#d3e99a}.safety-icon{background:#dff2eb;color:var(--teal)}.roi{border-color:#c9df8b;background:#f1f8d9}.roi p{color:var(--muted)}.roi-equation span{border-color:#cfe0d8;background:rgba(255,255,255,.65)}.roi-equation strong{color:var(--orange)}.week:first-child{border-top-color:var(--teal)}.week:nth-child(2){border-top-color:var(--purple)}.week:nth-child(3){border-top-color:var(--orange)}.week:nth-child(4){border-top-color:var(--lime)}.week li{color:var(--muted)}.resource a{color:var(--teal)}
.completion-btn{margin-top:16px;color:var(--muted)}.completion-btn[aria-pressed="true"]{color:var(--teal);border-color:#8acbb8;background:#e6f5f0}.footer{border-color:var(--line);color:var(--quiet)}.toast{background:var(--teal);color:#fff}
body.presenter-mode .sidebar{display:none}body.presenter-mode .layout{display:block}body.presenter-mode .main{padding-left:6vw;padding-right:6vw}.presenter-mode .section{max-width:1280px}.presenter-mode .hero h1{font-size:clamp(56px,8vw,104px)}
@media(max-width:1050px){.path-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:760px){.topbar{height:62px}.sidebar{top:62px;background:#f7fbf9}.main{padding:62px 16px 50px}.hero{padding:64px 0 30px}.hero h1{font-size:clamp(44px,14vw,68px)}.hero-lead{font-size:16px}.console{margin-top:36px}.signature-band{padding:12px 0 8px}.signature-head{display:block}.signature-desc{margin-top:10px}.signature-grid{grid-template-columns:1fr}.signature-card{min-height:auto;padding:19px}.path-grid{grid-template-columns:1fr 1fr}.section{padding-top:68px}.section-title{font-size:30px}.completion-btn{margin-top:14px}.presenter-mode .hero h1{font-size:clamp(46px,14vw,72px)}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}

/* =====================================================================
   v2 内容块与交互组件（app.js 渲染的新结构）
   ===================================================================== */
.inl{color:var(--teal);text-decoration:underline;text-decoration-color:rgba(8,127,110,.35);text-underline-offset:3px}
.inl:hover{text-decoration-color:var(--teal)}
code{font-family:'DM Mono',monospace;font-size:.92em;background:var(--panel-2);padding:1px 6px;border-radius:6px}
.blocks{display:flex;flex-direction:column;gap:22px}
.blocks > *{margin:0}
.section-head .completion-btn{margin-top:14px}
.part-chip{display:inline-block;margin-left:10px;padding:2px 8px;border-radius:999px;background:var(--panel-2);color:var(--muted);font:500 10px/1.4 'Noto Sans SC',sans-serif;letter-spacing:.04em;text-transform:none;vertical-align:middle}
.nav-part{margin:14px 0 4px 10px;color:var(--quiet);font:500 10px/1.2 'DM Mono',monospace;letter-spacing:.14em;text-transform:uppercase}
.nav-part:first-child{margin-top:0}

/* 文本块 */
.b-lead{font-size:clamp(17px,1.6vw,21px);line-height:1.65;color:var(--text);max-width:820px;padding-left:18px;border-left:3px solid var(--teal)}
.b-prose{max-width:820px}
.b-prose p{margin:0 0 12px;color:var(--text);font-size:15px;line-height:1.85}
.b-prose p:last-child{margin-bottom:0}
.b-note{margin-top:10px;color:var(--muted);font-size:12.5px;line-height:1.7}

/* 十拍 */
.b-beats{display:flex;flex-direction:column;gap:14px}
.beat{display:grid;grid-template-columns:64px minmax(0,1fr);gap:18px;padding:22px 24px;border:1px solid var(--line);border-radius:16px;background:var(--panel);box-shadow:0 7px 18px rgba(18,43,37,.045)}
.beat-num{font-size:26px;font-weight:500;color:var(--teal);line-height:1;padding-top:4px}
.beat-body h3{margin:0 0 10px;font-size:19px;letter-spacing:-.03em}
.beat-body p{margin:0;color:var(--text);font-size:14.5px;line-height:1.8}
.beat .analogy,.gloss .analogy{margin-top:12px;padding:12px 14px;border-radius:12px;background:#edf8df;color:#486340;font-size:13px;line-height:1.7;border:1px solid var(--lime)}
.beat .analogy:before,.gloss .analogy:before{content:"类比 · ";font-weight:700}
.beat-foot{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:12px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;background:var(--panel-2);color:var(--muted);font:500 11px/1.4 'Noto Sans SC',sans-serif}
.chip-demo{background:#fff2e6;color:var(--orange)}
.chip-danger{background:#ffedef;color:var(--danger)}

/* 卡片 */
.b-cards{display:grid;gap:12px}
.b-cards.cols-2{grid-template-columns:repeat(2,1fr)}.b-cards.cols-3{grid-template-columns:repeat(3,1fr)}.b-cards.cols-4{grid-template-columns:repeat(4,1fr)}
.card{padding:18px 19px;border:1px solid var(--line);border-radius:14px;background:var(--panel);box-shadow:0 7px 18px rgba(18,43,37,.045)}
.card h3{margin:8px 0 8px;font-size:16px;letter-spacing:-.02em}
.card p{margin:0;color:var(--muted);font-size:13.5px;line-height:1.75}
.card.tone-good{border-color:#9ed8c8}.card.tone-bad,.card.tone-danger{border-color:#e5b5b7}.card.tone-warn{border-color:#f0c9a8}.card.tone-info{border-color:#c9c2f0}
.card.tone-warn .eyebrow{color:var(--orange)}.card.tone-bad .eyebrow,.card.tone-danger .eyebrow{color:var(--danger)}.card.tone-info .eyebrow{color:var(--purple)}

/* 对照 */
.b-compare{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.cmp{padding:20px 22px;border:1px solid var(--line);border-radius:16px;background:var(--panel)}
.cmp h3{margin:0 0 12px;font-size:16px}
.cmp ul{margin:0;padding-left:0;list-style:none;display:flex;flex-direction:column;gap:9px}
.cmp li{position:relative;padding-left:20px;color:var(--text);font-size:13.5px;line-height:1.7}
.cmp li:before{content:"•";position:absolute;left:4px;color:var(--quiet)}
.goodbad .cmp-l{border-color:#e5b5b7}.goodbad .cmp-l li:before{content:"✕";color:var(--danger)}
.goodbad .cmp-r{border-color:#9ed8c8}.goodbad .cmp-r li:before{content:"✓";color:var(--teal)}

/* 表格 */
.b-table{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:var(--panel)}
.b-table table{width:100%;border-collapse:collapse;font-size:13.5px;min-width:560px}
.b-table th,.b-table td{padding:12px 14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line);line-height:1.65}
.b-table th{background:var(--panel-2);color:var(--muted);font-weight:600;font-size:12px;letter-spacing:.02em;white-space:nowrap}
.b-table tr:last-child td{border-bottom:0}
.b-table .b-note{padding:10px 14px}

/* 引言 / 提示 */
.b-quote{margin:0;padding:22px 26px;border-left:3px solid var(--orange);background:var(--panel);border-radius:0 16px 16px 0;border-top:1px solid var(--line);border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.b-quote p{margin:0 0 10px;font-size:17px;line-height:1.7;letter-spacing:-.01em}
.b-quote footer{color:var(--muted);font-size:12.5px}
.b-callout{padding:16px 18px;border-radius:14px;border:1px solid var(--line);background:var(--panel)}
.b-callout b{display:block;margin-bottom:6px;font-size:14.5px}
.b-callout p{margin:0;color:var(--text);font-size:13.5px;line-height:1.75}
.b-callout.tone-good{background:#e6f5f0;border-color:#9ed8c8}.b-callout.tone-warn{background:#fff2e6;border-color:#f0c9a8}.b-callout.tone-danger{background:#ffedef;border-color:#e5b5b7}.b-callout.tone-info{background:#efedff;border-color:#c9c2f0}

/* 证据 */
.b-evidence .eyebrow{margin-bottom:10px}
.ev-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(280px,100%),1fr));gap:10px}
.ev{padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:var(--panel);font-size:13px;line-height:1.7;position:relative}
.ev-top{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:8px}
.ev-tier{padding:2px 8px;border-radius:999px;font-size:10.5px;font-weight:600;background:var(--panel-2);color:var(--muted)}
.ev-research .ev-tier{background:#e6f5f0;color:var(--teal)}.ev-official .ev-tier{background:#efedff;color:var(--purple)}.ev-law .ev-tier{background:#e9eef7;color:#3b5a99}.ev-vendor .ev-tier{background:#fff2e6;color:var(--orange)}.ev-anecdote .ev-tier{background:#f6efe2;color:#8a6a2e}.ev-expert .ev-tier{background:var(--panel-2);color:var(--muted)}
.ev-verify{padding:2px 8px;border-radius:999px;font-size:10.5px;background:#ffedef;color:var(--danger)}
.ev-date{margin-left:auto;color:var(--quiet);font-size:11px}
.ev-head{font-size:20px;font-weight:800;letter-spacing:-.03em;margin-bottom:6px;color:var(--text)}
.ev-claim{margin:0 0 8px;color:var(--text)}
.ev-src{color:var(--muted);font-size:12px}
.ev-src a{color:var(--teal)}
.ev-note{margin-top:8px;padding-top:8px;border-top:1px dashed var(--line);color:var(--muted);font-size:12px}
.ev-missing{border-color:var(--danger);color:var(--danger)}
.ev-inline{width:100%}
.ev-inline summary{cursor:pointer;list-style:none;display:inline-flex;align-items:center;gap:7px;padding:5px 10px;border-radius:999px;background:var(--panel-2);color:var(--muted);font-size:11.5px}
.ev-inline summary::-webkit-details-marker{display:none}
.ev-inline summary:hover{color:var(--text)}
.ev-dot{width:6px;height:6px;border-radius:50%;background:var(--teal)}
.ev-inline[open] summary{color:var(--teal)}
.ev-inline .ev-grid{margin-top:10px}

/* 清单 / 步骤 / 决定 / 讲师 */
.b-checklist{padding:18px 20px;border:1px solid var(--line);border-radius:14px;background:var(--panel)}
.b-checklist h3{margin:0 0 12px;font-size:16px}
.b-checklist ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:10px}
.b-checklist li{display:grid;grid-template-columns:18px minmax(0,1fr);gap:10px;font-size:14px;line-height:1.7}
.b-checklist small{display:block;color:var(--muted);font-size:12.5px}
.ck{width:16px;height:16px;margin-top:5px;border:2px solid var(--teal);border-radius:5px}
.b-steps{margin:0;padding:0 0 0 0;list-style:none;counter-reset:st;display:flex;flex-direction:column;gap:10px}
.b-steps li{counter-increment:st;display:grid;grid-template-columns:36px minmax(0,1fr);gap:12px;padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:var(--panel)}
.b-steps .step-body{min-width:0}
.b-steps li:before{grid-column:1;grid-row:1}
.b-steps li > *{grid-column:2;min-width:0}
.b-steps li:before{content:counter(st,decimal-leading-zero);font:500 16px/1.3 'DM Mono',monospace;color:var(--teal)}
.b-steps b{display:block;font-size:14.5px;margin-bottom:4px}
.b-steps p{margin:0;color:var(--muted);font-size:13.5px;line-height:1.7}
.b-decision{padding:24px 26px;border-radius:18px;background:#143f36;color:#f6fffb;box-shadow:0 22px 48px rgba(18,63,54,.2)}
.b-decision .eyebrow{color:var(--lime)}
.b-decision h3{margin:10px 0 8px;font-size:20px;letter-spacing:-.03em}
.b-decision p{margin:0 0 14px;color:#cfe6dd;font-size:14px;line-height:1.75}
.b-decision ol{margin:0;padding-left:22px;display:flex;flex-direction:column;gap:8px;font-size:14px;line-height:1.7}
.b-decision ol li::marker{color:var(--lime);font-weight:700}
.b-decision .inl{color:var(--lime)}
.presenter-only{display:none}
body.presenter-mode .presenter-only{display:block}
.b-presenter{padding:16px 18px;border-radius:14px;background:#fff8e8;border:1px dashed var(--orange)}
.b-presenter .eyebrow{color:var(--orange)}
.b-presenter b{display:block;margin:6px 0 4px;font-size:14.5px}
.b-presenter p{margin:0;color:#5a4a34;font-size:13.5px;line-height:1.75}

/* 自测 */
.w-quiz{display:flex;flex-direction:column;gap:12px}
.quiz-head{display:flex;justify-content:space-between;align-items:center}
.quiz-score{color:var(--muted);font-size:13px}.quiz-score b{color:var(--teal);font-size:18px}
.qz{padding:18px 20px;border:1px solid var(--line);border-radius:14px;background:var(--panel)}
.qz h4{margin:0 0 12px;font-size:15px;line-height:1.6}.qz h4 .mono{color:var(--teal);margin-right:6px}
.qz-opts{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
.qz-opt{text-align:left;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--panel);font-size:13.5px;line-height:1.5;transition:border-color .15s,background .15s}
.qz-opt:hover:not(:disabled){border-color:#8acbb8}
.qz-opt.is-ans{border-color:var(--teal);background:#e6f5f0}.qz-opt.is-wrong{border-color:var(--danger);background:#ffedef}
.qz-opt:disabled{cursor:default}
.qz-explain{margin-top:12px;padding:12px 14px;border-radius:10px;background:var(--panel-2);font-size:13px;line-height:1.7}
.qz.ok{border-color:#9ed8c8}.qz.ko{border-color:#e5b5b7}

/* 四问筛选器 / 私有化 */
.w-filter,.w-priv{padding:20px;border:1px solid var(--line);border-radius:16px;background:var(--panel)}
.flt-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.flt-q{font-weight:700;font-size:14px;margin-bottom:8px}
.flt-opts{display:flex;flex-wrap:wrap;gap:6px}
.flt-opts .tab[aria-pressed="true"]{color:#fff;border-color:var(--teal);background:var(--teal);font-weight:700}
.flt-out{margin-top:18px}
.flt-result{margin-top:8px;padding:16px 18px;border-radius:12px;background:var(--panel-2);border:1px solid var(--line)}
.flt-result b{display:block;font-size:15px;margin-bottom:6px}.flt-result p{margin:0;color:var(--muted);font-size:13.5px;line-height:1.75}
.flt-result.tone-good{background:#e6f5f0;border-color:#9ed8c8}.flt-result.tone-warn{background:#fff2e6;border-color:#f0c9a8}.flt-result.tone-danger{background:#ffedef;border-color:#e5b5b7}.flt-result.tone-info{background:#efedff;border-color:#c9c2f0}
.w-priv .flt-result{margin-top:14px}

/* 连乘计算器 */
.w-compound{padding:20px;border:1px solid var(--line);border-radius:16px;background:var(--panel)}
.cp-grid{display:grid;grid-template-columns:1fr 1fr 200px;gap:18px;align-items:end}
.cp-ctrl label{display:flex;justify-content:space-between;font-size:13px;color:var(--muted);margin-bottom:8px}
.cp-ctrl label b{color:var(--text)}
.cp-ctrl input[type=range]{width:100%;accent-color:var(--teal)}
.cp-out{padding:14px 16px;border-radius:12px;background:#143f36;color:#f6fffb}
.cp-out span{display:block;font-size:11px;color:#a9cbc1}.cp-out strong{font-size:32px;line-height:1.1;color:var(--lime)}
.cp-table{width:100%;margin-top:16px;border-collapse:collapse;font-size:13px}
.cp-table th,.cp-table td{padding:8px 10px;border-bottom:1px solid var(--line);text-align:left}
.cp-table th{color:var(--muted);font-weight:600;font-size:12px}

/* 六原语 / 成本 */
.w-prim{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.prim{padding:18px;border:1px solid var(--line);border-radius:14px;background:var(--panel)}
.prim-n{color:var(--teal);font-size:12px}.prim h4{margin:6px 0 6px;font-size:16px}.prim p{margin:0 0 8px;color:var(--muted);font-size:13px;line-height:1.7}
.prim ul{margin:0;padding-left:16px;font-size:13px;color:var(--text);line-height:1.7}
.w-cost{display:flex;flex-direction:column;gap:8px}
.cost-row{display:grid;grid-template-columns:40px minmax(0,1fr);gap:12px;padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:var(--panel)}
.cost-n{color:var(--teal);font-size:16px;padding-top:2px}
.cost-row b{font-size:14.5px}.cost-share{margin-left:10px;padding:2px 8px;border-radius:999px;background:var(--panel-2);color:var(--muted);font-size:11px}
.cost-row p{margin:6px 0 0;color:var(--muted);font-size:13.5px;line-height:1.7}

/* 阶梯 */
.ladder-row{display:grid;grid-template-columns:repeat(6,1fr);gap:0;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--panel)}
.ladder-step{position:relative;padding:18px 14px 16px;border-right:1px solid var(--line);border-top:3px solid var(--line)}
.ladder-step:last-child{border-right:0}
.ladder-step.active{border-top-color:var(--teal);background:#e6f5f0}
.ladder-step.after-line{border-left:3px solid var(--danger)}
.ladder-lv{color:var(--teal);font-size:12px}.ladder-step b{display:block;margin:6px 0 6px;font-size:14.5px}
.ladder-step p{margin:0 0 6px;color:var(--text);font-size:12.5px;line-height:1.6}.ladder-step small{display:block;color:var(--muted);font-size:11.5px;line-height:1.6}
.ladder-line{margin-top:12px;padding:12px 14px;border-radius:12px;background:#ffedef;color:#7a2f37;font-size:13px;line-height:1.7;border:1px solid #e5b5b7}
.ladder-line .chip{margin-right:8px}

/* 案例增强 */
.case-body{margin-top:14px}
.flow-arrow{color:var(--quiet);margin:0 4px}
.case-mode{display:flex;gap:8px;margin:16px 0 10px}
.tab-danger[aria-selected="true"]{background:var(--danger)!important;border-color:var(--danger)!important}
.case-ver{padding:14px 16px;border-radius:12px;border:1px solid var(--line);background:var(--panel-2)}
.case-ver b{display:block;margin-bottom:6px;font-size:14.5px}.case-ver p{margin:0 0 6px;color:var(--text);font-size:13.5px;line-height:1.75}
.case-ver.tone-good{background:#e6f5f0;border-color:#9ed8c8}.case-ver.tone-danger{background:#ffedef;border-color:#e5b5b7}
.measure{margin-top:14px;padding:12px 14px;border-radius:12px;background:rgba(200,243,106,.14);display:flex;flex-direction:column;gap:8px}
.measure .eyebrow{color:#486340}
.measure span{display:block;color:var(--muted);font-size:10.5px}.measure b{font-size:13px;line-height:1.5}
.case-side .ev-inline{margin-top:12px;display:block}

/* 工具 */
.tools-table{margin-top:14px}
.tool-primary{margin-top:12px}

/* 练习（折叠） */
.w-labs{display:flex;flex-direction:column;gap:10px}
.lab{border:1px solid var(--line);border-radius:14px;background:var(--panel);padding:0 18px}
.lab summary{cursor:pointer;list-style:none;display:grid;grid-template-columns:36px minmax(0,1fr);gap:12px;align-items:baseline;padding:16px 0}
.lab-sum{min-width:0}
.lab summary > .lab-num{grid-column:1}
.lab summary > *:not(.lab-num){grid-column:2;min-width:0}
.lab summary::-webkit-details-marker{display:none}
.lab summary b{font-size:15.5px}.lab-goal{display:block;color:var(--muted);font-size:12.5px;margin-top:2px}
.lab .lab-num{color:var(--teal);font-size:14px}
.lab-body{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px;padding:4px 0 16px;border-top:1px dashed var(--line);padding-top:16px}
.lab-input{margin:8px 0 0;white-space:pre-wrap;font:12.5px/1.6 'DM Mono',monospace;background:var(--panel-2);padding:12px;border-radius:10px;color:var(--text)}
.lab-body ol,.rubric{margin:8px 0 0;padding-left:18px;font-size:13px;line-height:1.7}
.lab-body p{margin:8px 0 12px;font-size:13px;line-height:1.7;color:var(--text)}
.lab .copy-btn{margin:0 0 16px}

/* 演示脚本 */
.w-demos .eyebrow{color:var(--orange);margin-bottom:10px}
.demo-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.demo{padding:18px;border:1px dashed var(--orange);border-radius:14px;background:#fff8e8}
.demo-head{display:flex;align-items:center;gap:10px;margin-bottom:8px}.demo-head h4{margin:0;font-size:15.5px}
.demo-proves{font-size:12.5px;color:#5a4a34;margin-bottom:8px}.demo-proves span,.demo-row span{display:inline-block;margin-right:6px;padding:1px 7px;border-radius:999px;background:#fde9cf;color:var(--orange);font-size:10.5px;font-weight:600}
.demo ol{margin:0 0 10px;padding-left:18px;font-size:13px;line-height:1.7;color:#3d3126}
.demo-row{display:flex;gap:8px;align-items:flex-start;font-size:13px;line-height:1.65;margin-bottom:6px}.demo-row p{margin:0}
.demo-closer{margin-top:10px;padding:10px 12px;border-radius:10px;background:#143f36;color:#f6fffb;font-size:13px;line-height:1.6}

/* 30 天 */
.week .eyebrow{margin:12px 0 4px}
.week ul{margin:0;padding-left:16px;font-size:13px;line-height:1.7}
.week .deliver li{color:var(--teal)}
.week-stop{margin-top:12px;padding:10px 12px;border-radius:10px;background:#ffedef;color:#7a2f37;font-size:12.5px;line-height:1.6}

/* 资源 / 词表 / 4D / 证据总表 */
.res-tier{margin-bottom:22px}
.res-tier-head{display:flex;align-items:center;gap:10px;margin-bottom:10px}.res-tier-head h3{margin:0;font-size:17px}
.res-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.res-grid .resource h4{margin:0 0 4px;font-size:14.5px}.res-who{color:var(--quiet);font-size:11.5px;margin-bottom:6px}
.w-gloss{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.gloss{border:1px solid var(--line);border-radius:12px;background:var(--panel);padding:0 16px}
.gloss summary{cursor:pointer;list-style:none;padding:14px 0;display:flex;flex-wrap:wrap;gap:6px 10px;align-items:baseline}
.gloss summary::-webkit-details-marker{display:none}
.gloss summary b{font-size:15px}.gloss-en{color:var(--quiet);font-size:11px}.gloss-plain{display:block;width:100%;color:var(--muted);font-size:13px;line-height:1.65}
.gloss-body{padding:0 0 14px;border-top:1px dashed var(--line);padding-top:12px;font-size:13px;line-height:1.7}
.gloss-trap{margin-top:10px;padding:10px 12px;border-radius:10px;background:#ffedef;color:#7a2f37}
.gloss-body .inl{display:inline-block;margin-top:10px}
.w-fourd{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.fourd{padding:18px;border:1px solid var(--line);border-radius:14px;background:var(--panel)}
.fourd-d{color:var(--teal);font-size:12px}.fourd h4{margin:6px 0 6px;font-size:18px}.fourd p{margin:0 0 10px;color:var(--muted);font-size:13px;line-height:1.7}
.fourd-beats{display:flex;flex-wrap:wrap;gap:6px}
.evlist-tier{margin-bottom:24px}.evlist-tier h3{margin:0 0 10px;font-size:17px}.evlist-tier h3 .mono{color:var(--quiet);font-size:13px;margin-left:6px}
.signal-src{display:block;margin-top:6px;color:#a9cbc1;font-size:10.5px}
.signal-src:hover{color:#f6fffb}

@media(max-width:1050px){.b-cards.cols-4{grid-template-columns:repeat(2,1fr)}.w-fourd{grid-template-columns:repeat(2,1fr)}.ladder-row{grid-template-columns:repeat(3,1fr)}.ladder-step{border-bottom:1px solid var(--line)}.res-grid,.w-prim{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){.beat{grid-template-columns:1fr;gap:8px;padding:18px}.beat-num{font-size:18px}.b-cards.cols-2,.b-cards.cols-3,.b-cards.cols-4,.b-compare,.flt-grid,.qz-opts,.w-prim,.res-grid,.w-gloss,.w-fourd,.demo-grid,.lab-body{grid-template-columns:1fr}.cp-grid{grid-template-columns:1fr}.ladder-row{grid-template-columns:1fr 1fr}.b-lead{font-size:17px}.part-chip{display:none}}
.cp-grid,.cp-ctrl{min-width:0}
.cp-ctrl input[type=range]{max-width:100%;min-width:0}


/* =====================================================================
   单条证据 = 观点式陈述（不再是一张孤零零的小卡片）
   ===================================================================== */
.ev-solo{margin:10px 0 0;padding:30px 34px;border:1px solid var(--line);border-left:3px solid var(--teal);border-radius:16px;background:var(--panel);text-align:center;box-shadow:0 7px 18px rgba(18,43,37,.045)}
.ev-official .ev-solo,.ev-solo.ev-official{border-left-color:var(--purple)}
.ev-solo.ev-vendor{border-left-color:var(--orange)}
.ev-solo.ev-anecdote{border-left-color:#8a6a2e}
.ev-solo.ev-law{border-left-color:#3b5a99}
.ev-solo.ev-expert{border-left-color:var(--quiet)}
.ev-solo-top{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.ev-solo-top .ev-date{margin-left:0}
.ev-solo-head{font-size:clamp(30px,4.4vw,50px);font-weight:800;letter-spacing:-.05em;line-height:1.06;color:var(--text);margin-bottom:14px}
.ev-solo-claim{margin:0 auto;max-width:660px;font-size:clamp(15px,1.5vw,17.5px);line-height:1.75;color:var(--text);border:0;padding:0}
.ev-solo-src{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);display:flex;justify-content:center;align-items:baseline;gap:8px;flex-wrap:wrap;color:var(--muted);font-size:12.5px}
.ev-solo-src b{color:var(--text)}
.ev-solo-src a{color:var(--teal)}
.ev-solo-note{margin:12px auto 0;max-width:660px;color:var(--muted);font-size:12px;line-height:1.7}
.ev-inline.is-solo .ev-solo{padding:22px 24px}
.ev-inline.is-solo .ev-solo-head{font-size:clamp(24px,3vw,34px)}

/* =====================================================================
   工具面板重做：与全站卡片体系统一，不再用旧暗色主题的 10–12px 小字
   ===================================================================== */
.w-tools .tool-panel.tool-primary{margin-top:14px;padding:26px 28px;border:1px solid var(--line);border-radius:18px;background:var(--panel);box-shadow:0 7px 18px rgba(18,43,37,.045)}
.w-tools .tool-primary h3{font-size:26px;margin:6px 0 8px;letter-spacing:-.04em;color:var(--text)}
.w-tools .tool-kicker{font-size:13px;color:var(--muted)}
.w-tools .tool-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(220px,100%),1fr));gap:12px;margin-top:20px}
.w-tools .tool-fact{padding:16px 17px;border-radius:12px;background:var(--panel-2);border:1px solid transparent}
.w-tools .tool-fact span{display:block;margin-bottom:6px;color:var(--teal);font:600 11px/1.2 'DM Mono',monospace;letter-spacing:.08em;text-transform:uppercase}
.w-tools .tool-fact p{margin:0;color:var(--text);font-size:13.5px;line-height:1.7}
.w-tools .tool-caution{margin-top:18px;padding:14px 16px;border-left:3px solid var(--orange);border-radius:0 12px 12px 0;background:#fff4e8;color:#76584b;font-size:13.5px;line-height:1.7}
.w-tools .tool-tabs{margin-bottom:0}

@media(max-width:760px){
  .ev-solo{padding:22px 20px}
  .ev-solo-head{font-size:clamp(26px,9vw,38px)}
  .w-tools .tool-panel.tool-primary{padding:20px}
  .w-tools .tool-primary h3{font-size:22px}
}

/* 兜底：任何网格里只剩一个卡片时，撑满整行并居中，避免"孤零零一张小卡" */
.b-cards:has(> .card:only-child),
.res-grid:has(> .resource:only-child),
.w-prim:has(> .prim:only-child),
.demo-grid:has(> .demo:only-child),
.w-fourd:has(> .fourd:only-child){grid-template-columns:minmax(0,1fr)}
.b-cards > .card:only-child{text-align:center;padding:28px 30px}
.b-cards > .card:only-child h3{font-size:22px;letter-spacing:-.035em}
.b-cards > .card:only-child p{max-width:640px;margin:0 auto;font-size:15px}
.b-cards > .card:only-child .ev-inline{display:inline-block;margin-top:12px}

/* =====================================================================
   演示模式：同一份内容的第二形态
   默认（资料站）= 完整正文；演示模式 = 只留论点，字号放大，供投屏
   ===================================================================== */
.prose-key{display:none}

body.presenter-mode{font-size:20px}
body.presenter-mode .main{padding-top:96px}
body.presenter-mode .section{padding:120px 0 40px}
body.presenter-mode .blocks{gap:40px}

/* 章节头 */
body.presenter-mode .section-title{font-size:clamp(40px,5.2vw,68px);line-height:1.08}
body.presenter-mode .section-desc{font-size:19px;max-width:900px}
body.presenter-mode .eyebrow{font-size:13px}
body.presenter-mode .completion-btn{display:none}

/* 正文：藏起完整段落，只留锚句 */
body.presenter-mode .prose-full{display:none}
body.presenter-mode .prose-key{display:block;margin:0;font-size:clamp(24px,2.9vw,36px);font-weight:700;line-height:1.45;letter-spacing:-.03em;color:var(--text);max-width:1000px;padding-left:22px;border-left:4px solid var(--teal)}
body.presenter-mode .b-lead{font-size:clamp(24px,2.7vw,34px);line-height:1.5;max-width:1000px;border-left-width:4px}
body.presenter-mode .b-prose{max-width:none}

/* 十拍：一拍一屏——大标题 + 类比，正文交给讲师说 */
body.presenter-mode .beat{grid-template-columns:96px minmax(0,1fr);padding:34px 38px;scroll-margin-top:84px}
body.presenter-mode .beat-num{font-size:46px}
body.presenter-mode .beat-body h3{font-size:clamp(28px,3.4vw,42px);line-height:1.2;margin-bottom:14px}
body.presenter-mode .beat-body > p{display:none}
body.presenter-mode .beat .analogy{font-size:19px;line-height:1.7;padding:16px 20px}
body.presenter-mode .beat-foot .ev-inline{display:none}

/* 卡片：标题放大，正文压缩 */
body.presenter-mode .card h3{font-size:22px;line-height:1.35}
body.presenter-mode .card p{font-size:16px;line-height:1.7}
body.presenter-mode .card .ev-inline{display:none}

/* 证据：数字是主角，论述交给讲师 */
body.presenter-mode .ev-claim,body.presenter-mode .ev-note,body.presenter-mode .ev-solo-note{display:none}
body.presenter-mode .ev-head{font-size:30px}
body.presenter-mode .ev-solo-head{font-size:clamp(44px,6.5vw,84px)}
body.presenter-mode .ev-solo-claim{font-size:22px;max-width:860px}
body.presenter-mode .ev-solo{padding:44px 48px}
body.presenter-mode .ev-src,body.presenter-mode .ev-solo-src{font-size:15px}

/* 其余块统一放大 */
body.presenter-mode .b-callout b{font-size:22px}
body.presenter-mode .b-callout p{font-size:18px;line-height:1.75}
body.presenter-mode .b-table table{font-size:17px;min-width:0}
body.presenter-mode .b-table th{font-size:15px}
body.presenter-mode .cmp h3{font-size:22px}
body.presenter-mode .cmp li{font-size:17px;line-height:1.75}
body.presenter-mode .b-checklist li{font-size:19px}
body.presenter-mode .b-checklist small{font-size:16px}
body.presenter-mode .b-steps b{font-size:20px}
body.presenter-mode .b-steps p{font-size:17px}
body.presenter-mode .b-quote p{font-size:clamp(26px,3vw,38px);line-height:1.5}
body.presenter-mode .b-quote footer{font-size:16px}
body.presenter-mode .b-decision h3{font-size:30px}
body.presenter-mode .b-decision p,body.presenter-mode .b-decision ol{font-size:19px}
body.presenter-mode .gloss summary b{font-size:20px}
body.presenter-mode .gloss-plain{font-size:17px}
body.presenter-mode .fourd h4{font-size:24px}
body.presenter-mode .ladder-step b{font-size:18px}
body.presenter-mode .prim h4{font-size:20px}
body.presenter-mode .qz h4{font-size:21px}
body.presenter-mode .qz-opt{font-size:17px}
body.presenter-mode .flt-q{font-size:19px}
body.presenter-mode .cp-out strong{font-size:44px}

/* 投屏时的翻页提示 */
body.presenter-mode #app:after{content:"← → 翻屏 · Esc 退出";position:fixed;right:18px;bottom:16px;z-index:40;padding:7px 13px;border-radius:999px;background:rgba(18,43,37,.82);color:#f6fffb;font:500 12px/1 'DM Mono',monospace;pointer-events:none}

@media(max-width:760px){
  body.presenter-mode{font-size:17px}
  body.presenter-mode .prose-key{font-size:22px;padding-left:16px}
  body.presenter-mode .beat{grid-template-columns:1fr}
  body.presenter-mode .beat-num{font-size:26px}
  body.presenter-mode #app:after{display:none}
}

/* =====================================================================
   一页总览：可拍照带走的那一张
   ===================================================================== */
.w-onepage{border:1px solid var(--line);border-radius:20px;background:var(--panel);padding:30px 32px;box-shadow:0 10px 28px rgba(18,43,37,.07)}
.op-head{text-align:center;padding-bottom:22px;border-bottom:2px solid var(--teal)}
.op-headline{margin:0;font-size:clamp(21px,2.5vw,31px);font-weight:800;line-height:1.4;letter-spacing:-.035em;color:var(--text);max-width:840px;margin-inline:auto}
.op-sub{margin:10px auto 0;max-width:680px;color:var(--muted);font-size:13.5px;line-height:1.7}
.op-numbers{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:20px 0 22px}
.op-num{padding:14px 16px;border-radius:12px;background:#143f36;color:#f6fffb;text-align:center}
.op-num strong{display:block;font-size:clamp(20px,2.4vw,28px);font-weight:800;letter-spacing:-.03em;color:var(--lime);line-height:1.15}
.op-num span{display:block;margin-top:6px;font-size:11.5px;line-height:1.55;color:#a9cbc1}
.op-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;align-items:start}
.op-panel{padding:16px 18px;border:1px solid var(--line);border-radius:14px;background:var(--panel-2)}
.op-panel h3{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin:0 0 12px;font-size:14.5px;letter-spacing:-.01em;color:var(--text)}
.op-more{flex:none;color:var(--teal);font:500 10.5px/1 'DM Mono',monospace}
.op-panel ol,.op-panel ul{margin:0;padding:0;list-style:none}
.op-arc{counter-reset:oa;display:flex;flex-direction:column;gap:6px}
.op-arc li{counter-increment:oa;display:grid;grid-template-columns:22px minmax(0,1fr);gap:8px;font-size:12.5px;line-height:1.55;color:var(--text)}
.op-arc li:before{content:counter(oa,decimal-leading-zero);font:500 11px/1.6 'DM Mono',monospace;color:var(--teal)}
.op-pairs{display:flex;flex-direction:column;gap:9px}
.op-pairs li b{display:block;font-size:12.5px;line-height:1.5;color:var(--text)}
.op-pairs li span{display:block;font-size:11.5px;line-height:1.5;color:var(--muted)}
.op-qa{counter-reset:oq;display:flex;flex-direction:column;gap:6px;margin-bottom:12px}
.op-qa li{counter-increment:oq;display:grid;grid-template-columns:18px minmax(0,1fr);gap:7px;font-size:12.5px;line-height:1.55}
.op-qa li:before{content:counter(oq);font:500 11px/1.6 'DM Mono',monospace;color:var(--teal)}
.op-outs{display:flex;flex-direction:column;gap:6px;padding-top:11px;border-top:1px dashed var(--line)}
.op-outs div{display:grid;grid-template-columns:minmax(0,auto) minmax(0,1fr);gap:8px;align-items:baseline}
.op-outs b{font-size:11px;padding:2px 7px;border-radius:999px;background:#e6f5f0;color:var(--teal);white-space:nowrap}
.op-outs span{font-size:11.5px;line-height:1.55;color:var(--muted)}
.op-ladder{display:flex;flex-wrap:wrap;gap:5px}
.op-ladder span{display:inline-flex;align-items:center;gap:5px;padding:5px 9px;border-radius:8px;background:var(--panel);border:1px solid var(--line);font-size:11.5px}
.op-ladder i{font:500 10px/1 'DM Mono',monospace;color:var(--teal);font-style:normal}
.op-ladder .cross{border-left:3px solid var(--danger)}
.op-line{margin-top:11px;padding:9px 11px;border-radius:10px;background:#ffedef;color:#7a2f37;font-size:11.5px;line-height:1.55}
.op-fourd{display:flex;flex-direction:column;gap:9px}
.op-fourd li{display:grid;grid-template-columns:44px minmax(0,1fr);gap:9px;align-items:baseline}
.op-fourd b{font-size:13px;color:var(--teal)}
.op-fourd span{font-size:11.5px;line-height:1.55;color:var(--muted)}
.op-rules{display:flex;flex-direction:column;gap:7px}
.op-rules li{position:relative;padding-left:14px;font-size:12.5px;line-height:1.55;color:var(--text)}
.op-rules li:before{content:"";position:absolute;left:0;top:8px;width:5px;height:5px;border-radius:50%;background:var(--teal)}
.op-rules li:last-child{color:var(--danger)}

/* 演示模式：整页放大投屏 */
body.presenter-mode .op-headline{font-size:clamp(26px,3.2vw,40px)}
body.presenter-mode .op-num strong{font-size:clamp(24px,2.8vw,34px)}
body.presenter-mode .op-num span,body.presenter-mode .op-panel h3{font-size:15px}
body.presenter-mode .op-arc li,body.presenter-mode .op-qa li,body.presenter-mode .op-rules li,body.presenter-mode .op-pairs li b{font-size:15px}
body.presenter-mode .op-pairs li span,body.presenter-mode .op-outs span,body.presenter-mode .op-fourd span,body.presenter-mode .op-line{font-size:14px}
body.presenter-mode .op-ladder span{font-size:14px}

@media(max-width:1050px){.op-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){.op-grid,.op-numbers{grid-template-columns:1fr}.w-onepage{padding:20px}}

/* 打印：只出这一页，用于发纸质版 */
@media print{
  body{background:#fff}
  .topbar,.sidebar,.toast,.b-presenter,.completion-btn,.op-more{display:none!important}
  #chapters > .section:not(#summary),.hero,.signature-band,.footer{display:none!important}
  .main{padding:0}
  #summary{padding:0}
  .w-onepage{border:0;box-shadow:none;padding:0}
  .op-num{background:#143f36!important;-webkit-print-color-adjust:exact;print-color-adjust:exact}
}