:root{
  --ink:#11142f;--ink-2:#252b4f;--body:#626a86;--muted:#7a8198;
  --purple:#5b38e6;--purple-2:#7c5cff;--purple-3:#9c84ff;--lav:#f0ecff;
  --lav-2:#f8f6ff;--canvas:#fbfaff;--white:#fff;--line:#e7e5f2;--green:#2f9275;
  --shadow:0 28px 78px rgba(64,44,151,.12);--shadow-soft:0 16px 45px rgba(62,47,127,.08);
  --radius:28px;--max:1440px
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--canvas);color:var(--ink);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}body::selection{background:#dbd3ff;color:#28196f}a{color:inherit;text-decoration:none}button,select{font:inherit}.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;left:18px;top:-60px;z-index:999;padding:12px 16px;background:#11142f;color:#fff;border-radius:12px;transition:top .2s}.skip-link:focus{top:16px}

.site-header{height:86px;display:grid;grid-template-columns:160px 1fr auto;align-items:center;gap:24px;padding:0 max(4vw,28px);position:sticky;top:0;z-index:100;background:rgba(251,250,255,.86);backdrop-filter:blur(20px);border-bottom:1px solid rgba(231,229,242,.68)}.brand{display:inline-flex;align-items:center;width:max-content;max-width:100%;min-width:0;line-height:0}.brand-lockup{height:42px;width:auto;display:block;filter:drop-shadow(0 4px 9px rgba(91,56,230,.08));transition:transform .22s ease,filter .22s ease}.brand:hover .brand-lockup,.brand:focus-visible .brand-lockup{transform:translateY(-1px);filter:drop-shadow(0 7px 14px rgba(91,56,230,.13))}.brand-footer .brand-lockup{height:43px;filter:drop-shadow(0 0 12px rgba(139,111,255,.23))}.primary-nav{display:flex;align-items:center;justify-content:center;gap:34px}.primary-nav a{font-size:14px;color:#353b5c;font-weight:650;position:relative}.primary-nav a::after{content:"";position:absolute;left:50%;right:50%;bottom:-8px;height:2px;background:var(--purple);transition:.22s}.primary-nav a:hover::after,.primary-nav a:focus-visible::after{left:0;right:0}.header-actions{display:flex;align-items:center;gap:13px}.language-picker{position:relative;display:flex;align-items:center;gap:6px;min-height:40px;border:1px solid transparent;border-radius:12px;padding:5px 9px;color:#4c5370;white-space:nowrap}.language-picker:focus-within{border-color:#b9aeff;box-shadow:0 0 0 4px rgba(91,56,230,.1)}.language-picker svg{width:18px;height:18px;flex:0 0 auto}.language-current-full,.language-current-code{font-size:13px;font-weight:700;line-height:1}.language-current-code{display:none}.language-picker select{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer;border:0;outline:0}.login-link{font-size:14px;font-weight:700;padding:10px 8px}.button{display:inline-flex;align-items:center;justify-content:center;gap:11px;min-height:52px;padding:0 23px;border:0;border-radius:15px;color:#fff;background:linear-gradient(135deg,#6d43ef,#4b25c7);font-weight:780;box-shadow:0 15px 32px rgba(77,39,199,.24);transition:transform .22s,box-shadow .22s}.button svg{width:19px;height:19px}.button:hover{transform:translateY(-2px);box-shadow:0 20px 42px rgba(77,39,199,.28)}.button:focus-visible,.quiet-link:focus-visible,.program-tab:focus-visible,.menu-toggle:focus-visible{outline:3px solid rgba(91,56,230,.26);outline-offset:3px}.button-small{min-height:46px;padding:0 18px;font-size:14px}.button-compact{min-height:44px;padding:0 18px;font-size:13px}.menu-toggle{display:none}

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.hero-path{height:640px;position:relative;z-index:2;align-self:center}.path-line{position:absolute;inset:12px 28px 14px 8px;width:185px;height:610px;overflow:visible}.path-line path{fill:none;stroke-linecap:round}.path-base{stroke:#e5e0fb;stroke-width:5}.path-progress{stroke:url(#none);stroke:var(--purple-2);stroke-width:2.5;stroke-dasharray:8 10;filter:drop-shadow(0 0 6px rgba(116,84,245,.32));animation:pathDraw 3.8s ease both}.path-step{position:absolute;display:flex;gap:14px;align-items:center;width:225px;opacity:0;animation:stepIn .5s ease forwards}.path-icon{width:50px;height:50px;border-radius:50%;background:#fff;border:1px solid #e5e0f7;display:grid;place-items:center;color:var(--purple);box-shadow:0 10px 28px rgba(62,43,146,.10);flex:0 0 auto}.path-icon svg{width:23px;height:23px}.path-step strong{display:block;font-size:18px;letter-spacing:-.025em}.path-step small{display:block;color:#747c94;line-height:1.45;margin-top:3px;font-size:12px}.step-answer{left:4px;top:25px;animation-delay:.2s}.step-signal{left:34px;top:154px;animation-delay:.65s}.step-insight{left:5px;top:284px;animation-delay:1.1s}.step-decision{left:53px;top:410px;animation-delay:1.55s}.step-kavo{left:26px;top:506px;animation-delay:2s}.kavo-node{width:59px;height:59px;border-radius:50%;display:grid;place-items:center;background:#fff;border:1.5px solid #8067f5;box-shadow:0 0 0 6px rgba(117,82,247,.055),0 12px 28px rgba(64,36,155,.12);overflow:visible;flex:0 0 auto;position:relative}.kavo-node::after{content:"";position:absolute;inset:-7px;border-radius:50%;border:1px solid rgba(118,82,247,.23);animation:kavoHalo 3.4s ease-in-out infinite}.kavo-node img{width:100%;height:100%;object-fit:contain;display:block}.step-kavo strong{color:#5232ce;font-size:18px}.step-kavo small{color:#463a84;font-weight:650}.step-kavo::before{display:none}

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.section-shell{max-width:calc(var(--max) - 56px);margin:0 auto}.section-heading{display:flex;justify-content:space-between;gap:60px;align-items:end;margin-bottom:42px}.section-heading>div{max-width:720px}.section-heading h2,.families-copy h2,.research-inner h2,.pricing-section h2,.final-copy h2{font-size:clamp(42px,4.6vw,70px);line-height:1.03;letter-spacing:-.058em;margin:17px 0 0}.section-heading p,.families-copy>p,.research-inner>div>p,.pricing-section>div>p,.final-copy>p{max-width:520px;color:#6e758c;line-height:1.65;font-size:17px;margin:0}.section-heading.centered{display:block;text-align:center}.section-heading.centered p{margin:15px auto 0}.magic{margin-top:20px;padding:45px 38px 38px;background:#fff;border:1px solid var(--line);border-radius:30px;box-shadow:var(--shadow-soft);position:relative;overflow:hidden}.magic::after{content:"";position:absolute;width:420px;height:240px;right:-110px;bottom:-140px;background:radial-gradient(ellipse,rgba(110,77,238,.15),transparent 68%)}.magic-heading h2{font-size:clamp(30px,3vw,48px);letter-spacing:-.045em;margin:10px 0 0}.magic-flow{display:grid;grid-template-columns:1fr 32px 1fr 32px 1.15fr 32px 1.2fr 32px 1fr 32px 1fr;gap:6px;align-items:center;position:relative;z-index:2}.magic-card{height:180px;border:1px solid #e8e5f2;border-radius:18px;background:#fff;padding:18px;box-shadow:0 11px 28px rgba(64,43,135,.05);display:flex;flex-direction:column;align-items:flex-start}.magic-card>span{font-size:11px;color:#6f7590;font-weight:750}.magic-card>strong{font-size:16px;line-height:1.35;margin:auto 0 9px}.magic-card>small{font-size:10px;color:#7b8196;line-height:1.45}.flow-arrow{text-align:center;color:#7658ea;font-style:normal;font-size:22px}.mini-chart{width:100%;height:48px;display:flex;align-items:flex-end;gap:6px;margin:21px 0 14px}.mini-chart i{display:block;flex:1;background:linear-gradient(#957cfa,#6543df);border-radius:6px 6px 2px 2px}.mini-chart i:nth-child(1){height:30%}.mini-chart i:nth-child(2){height:55%}.mini-chart i:nth-child(3){height:42%}.mini-chart i:nth-child(4){height:80%}.mini-chart i:nth-child(5){height:62%}.magic-kavo{background:#fbf9ff;border-color:#cbbfff;box-shadow:0 14px 35px rgba(91,57,210,.10)}.magic-kavo img{width:60px;height:60px;object-fit:contain;align-self:center;margin:auto;filter:drop-shadow(0 9px 18px rgba(73,49,165,.12))}.magic-kavo strong{color:#43318f;font-size:13px;margin:0}.magic-next b{width:30px;height:30px;border-radius:50%;background:var(--purple);color:#fff;display:grid;place-items:center;margin-top:auto;align-self:center}

.how{padding:118px 34px 104px}.how-path{display:grid;grid-template-columns:1fr 50px 1fr 50px 1fr 50px 1fr 50px 1fr;align-items:start;margin-top:60px}.how-path article{text-align:center}.how-path article>span{width:76px;height:76px;margin:0 auto 17px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(145deg,#fff,#eee9ff);border:1px solid #e2dcfa;color:var(--purple)}.how-path article>span svg{width:33px;height:33px}.how-path article>strong{font-size:16px}.how-path article>p{font-size:12px;color:#757d94;line-height:1.5;max-width:145px;margin:8px auto 0}.how-path>i{height:1px;background:linear-gradient(90deg,#d8d1fa,#7f62ec,#d8d1fa);margin-top:38px}.how-kavo img{width:66px!important;height:66px!important;object-fit:contain}.how-path article>span.how-kavo{overflow:visible;background:linear-gradient(145deg,#fff,#f1edff);border-color:#cfc4ff;box-shadow:0 10px 25px rgba(77,49,166,.09)}.principles{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow-soft);overflow:hidden;margin-bottom:115px}.principles article{display:flex;gap:15px;padding:25px 23px}.principles article+article{border-left:1px solid var(--line)}.principles article>span{width:48px;height:48px;border-radius:15px;background:#f2efff;color:var(--purple);display:grid;place-items:center;flex:0 0 auto}.principles svg{width:25px;height:25px}.principles strong{font-size:14px}.principles p{font-size:11px;color:#757c92;line-height:1.5;margin:6px 0 0}

.programs-section{padding:110px 35px}.program-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:17px}.program-grid article{min-height:235px;border:1px solid var(--line);border-radius:23px;background:#fff;padding:25px;transition:.22s}.program-grid article:hover{transform:translateY(-4px);border-color:#c7bafa;box-shadow:var(--shadow-soft)}.program-grid article>span{color:#6341df;font-size:12px;font-weight:900}.program-grid h3{font-size:22px;letter-spacing:-.035em;margin:55px 0 12px}.program-grid p{font-size:13px;color:#747b91;line-height:1.55;margin:0}.families-section{display:grid;grid-template-columns:1fr .95fr;gap:88px;align-items:center;padding:120px 35px}.families-copy .quiet-link{margin-top:28px}.parent-report{background:#fff;border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow);padding:28px}.parent-report header{display:flex;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line);font-size:12px;color:#777e94}.parent-report header strong{color:var(--ink)}.parent-report>div{padding:20px 0;border-bottom:1px solid var(--line)}.parent-report b{font-size:13px}.parent-report p{font-size:13px;color:#6e768c;line-height:1.55;margin:7px 0 0}.parent-report footer{display:flex;align-items:center;gap:10px;padding-top:18px;color:#665b83;font-size:11px}.parent-report footer img{width:40px;height:40px;object-fit:contain;border-radius:50%;filter:drop-shadow(0 5px 11px rgba(75,48,161,.10))}.research-section{background:#11142f;color:#fff;padding:118px 0}.research-inner{padding:0 35px;display:grid;grid-template-columns:1fr 1fr;gap:100px;align-items:start}.research-inner .kicker{background:rgba(126,92,255,.17);color:#b9aaff}.research-inner h2{max-width:620px}.research-inner>div>p{color:#afb4ca}.research-points{display:grid;gap:14px}.research-points article{display:grid;grid-template-columns:42px 1fr;column-gap:16px;padding:20px;border:1px solid rgba(255,255,255,.11);border-radius:18px;background:rgba(255,255,255,.035)}.research-points span{grid-row:span 2;color:#9e87ff;font-weight:900}.research-points strong{font-size:14px}.research-points p{font-size:12px;color:#aeb3c8;line-height:1.5;margin:6px 0 0}.pricing-section{padding:115px 35px;display:grid;grid-template-columns:1fr .9fr;gap:100px;align-items:center}.pricing-card{border:1px solid var(--line);border-radius:26px;background:#fff;padding:30px;box-shadow:var(--shadow-soft)}.pricing-card ul{list-style:none;margin:0 0 28px;padding:0;display:grid;gap:15px}.pricing-card li{padding-left:27px;position:relative;color:#535b75}.pricing-card li::before{content:"✓";position:absolute;left:0;top:0;width:19px;height:19px;border-radius:50%;display:grid;place-items:center;background:#ede8ff;color:#5d3cdf;font-size:11px;font-weight:900}.final-cta{min-height:430px;margin-bottom:0;border-radius:36px 36px 0 0;background:linear-gradient(135deg,#f5f1ff,#fbfaff);padding:75px 55px;display:grid;grid-template-columns:1fr 390px;align-items:center;overflow:hidden;position:relative}.final-cta::before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;right:-70px;bottom:-220px;background:radial-gradient(circle,rgba(125,91,247,.2),transparent 68%)}.final-copy{position:relative;z-index:2}.final-copy>p{margin:17px 0 28px}.final-kavo{height:330px;position:relative;z-index:2;display:grid;place-items:end center}.final-kavo>img{height:330px;max-width:100%;object-fit:contain;filter:drop-shadow(0 25px 30px rgba(64,42,146,.15))}.final-kavo>div{position:absolute;left:0;top:38px;background:#fff;border:1px solid #e3dff4;border-radius:18px 18px 4px 18px;padding:16px 18px;box-shadow:var(--shadow-soft);max-width:180px;font-size:12px;line-height:1.45}.final-kavo>div span{color:#e5aa3c;margin-left:5px}

.site-footer{background:#0d1028;color:#fff;padding:65px max(4vw,28px) 25px}.footer-top{max-width:var(--max);margin:0 auto;display:grid;grid-template-columns:1.3fr repeat(4,1fr);gap:55px}.brand-footer{color:#fff}.footer-brand p{color:#b1b5c9;line-height:1.62;font-size:13px;margin-top:22px}.footer-top>div:not(.footer-brand){display:flex;flex-direction:column;gap:9px}.footer-top>div>strong{font-size:13px;margin-bottom:7px}.footer-top a{font-size:12px;color:#aeb3c7}.footer-top a:hover{color:#fff}.footer-bottom{max-width:var(--max);margin:50px auto 0;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;color:#858ba2;font-size:11px}.footer-bottom div{display:flex;gap:20px}

[dir="rtl"] .primary-nav,[dir="rtl"] .header-actions,[dir="rtl"] .hero-actions,[dir="rtl"] .access-note,[dir="rtl"] .path-step,[dir="rtl"] .principles article,[dir="rtl"] .parent-report footer{direction:rtl}[dir="rtl"] .hero-path{transform:scaleX(-1)}[dir="rtl"] .hero-path .path-step{transform:scaleX(-1)}[dir="rtl"] .evidence-canvas,[dir="rtl"] .hero-copy,[dir="rtl"] .section-heading,[dir="rtl"] .families-copy,[dir="rtl"] .research-inner,[dir="rtl"] .pricing-section{text-align:right}
[lang^="zh"] h1,[lang="ja"] h1,[lang="ko"] h1{font-size:clamp(62px,5.5vw,90px);letter-spacing:-.045em;white-space:nowrap}[lang^="zh"] .hero-lede,[lang="ja"] .hero-lede,[lang="ko"] .hero-lede{line-height:1.55}[lang^="zh"] h2,[lang^="zh"] h3{word-break:keep-all}

@keyframes kavoHalo{0%,100%{transform:scale(.98);opacity:.35}50%{transform:scale(1.08);opacity:.8}}@keyframes pathDraw{from{stroke-dashoffset:220;opacity:.05}to{stroke-dashoffset:0;opacity:1}}@keyframes stepIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}@media(prefers-reduced-motion:reduce){.kavo-node::after{animation:none!important}html{scroll-behavior:auto}.path-progress,.path-step{animation:none;opacity:1}.button,.program-grid article{transition:none}}

@media(max-width:1240px){.site-header{grid-template-columns:150px 1fr auto}.primary-nav{gap:20px}.hero{grid-template-columns:minmax(370px,.85fr) 245px minmax(470px,1.1fr);gap:20px}.hero h1{font-size:72px;white-space:nowrap}.evidence-canvas{min-height:550px}.canvas-body{grid-template-columns:1fr 150px}.magic-flow{grid-template-columns:repeat(3,1fr);gap:12px}.flow-arrow{display:none}.magic-card{height:165px}.magic-card:nth-of-type(4),.magic-card:nth-of-type(5),.magic-card:nth-of-type(6){margin-top:4px}.section-heading{gap:35px}.program-grid{grid-template-columns:repeat(2,1fr)}.footer-top{grid-template-columns:1.2fr repeat(4,1fr);gap:35px}}
@media(max-width:1020px){.site-header{grid-template-columns:minmax(0,1fr) auto}.language-current-full{display:none}.language-current-code{display:inline}.language-picker{min-width:48px;justify-content:center}.primary-nav{position:fixed;left:18px;right:18px;top:78px;display:none;flex-direction:column;align-items:stretch;background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:var(--shadow);z-index:101}.primary-nav.is-open{display:flex}.primary-nav a{padding:10px}.menu-toggle{display:flex;width:44px;height:44px;border:1px solid var(--line);border-radius:13px;background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px;position:absolute;right:18px}.menu-toggle span{width:18px;height:2px;background:#343a57;border-radius:2px}.header-actions{margin-right:55px}.login-link{display:none}.hero{grid-template-columns:1fr 250px;padding-top:46px;min-height:auto}.hero-copy{padding-right:10px}.hero-path{height:590px}.evidence-canvas{grid-column:1/-1;min-height:auto;margin-top:-90px}.magic{margin-left:18px;margin-right:18px}.how-path{grid-template-columns:repeat(5,1fr);gap:12px}.how-path>i{display:none}.principles{grid-template-columns:repeat(2,1fr);margin-left:18px;margin-right:18px}.principles article:nth-child(3){border-left:0;border-top:1px solid var(--line)}.principles article:nth-child(4){border-top:1px solid var(--line)}.families-section,.pricing-section,.research-inner{grid-template-columns:1fr;gap:52px}.final-cta{grid-template-columns:1fr 300px}.footer-top{grid-template-columns:1.4fr repeat(2,1fr)}.footer-top>div:nth-child(4),.footer-top>div:nth-child(5){margin-top:20px}}
@media(max-width:720px){.site-header{height:70px;padding:0 16px}.eyebrow{font-size:9px;padding:6px 10px;letter-spacing:.015em}.brand-lockup{height:34px}.header-actions{margin-right:48px;gap:5px}.language-picker{padding:3px}.language-picker svg{display:none}.language-picker select{max-width:72px;font-size:12px}.button-small{display:none}.hero{display:block;padding:44px 19px 34px}.hero h1{font-size:clamp(58px,17vw,77px);margin-top:24px}.hero-lede{font-size:18px}.program-tab{height:42px;padding:0 13px;font-size:12px}.hero-actions{gap:16px;flex-wrap:wrap}.hero-actions .button{min-width:180px}.hero-path{height:auto;margin:30px 0 22px;max-width:none;display:grid;grid-template-columns:repeat(5,1fr);gap:4px;align-items:start;position:relative;padding:18px 0 8px}.hero-path::before{content:"";position:absolute;left:8%;right:8%;top:43px;height:1px;background:linear-gradient(90deg,#ddd6ff,#7655ef,#ddd6ff)}.path-line{display:none}.path-step{position:relative!important;left:auto!important;top:auto!important;width:auto;display:grid;justify-items:center;gap:6px;text-align:center;opacity:1;animation:none}.path-step>div{min-width:0}.path-step strong{font-size:11px}.path-step small{display:none}.path-icon{width:48px;height:48px;position:relative;z-index:2}.path-icon svg{width:21px;height:21px}.kavo-node{width:53px;height:53px;position:relative;z-index:2}.step-kavo::before{display:none}.step-kavo strong{font-size:11px}.evidence-canvas{margin:0;min-height:auto}.canvas-head{grid-template-columns:1fr}.canvas-head>div+div{border-left:0;border-top:1px solid var(--line)}.canvas-body{grid-template-columns:1fr;padding:22px}.progress-panel{grid-template-columns:auto auto;justify-content:start;gap:18px}.progress-ring{width:98px;height:98px}.evidence-metrics{grid-template-columns:1fr 1fr}.canvas-next{align-items:flex-start;flex-direction:column}.magic{margin:28px 12px 0;padding:30px 18px}.section-heading{display:block}.section-heading p{margin-top:15px}.magic-flow{grid-template-columns:1fr;gap:10px}.magic-card{height:auto;min-height:145px}.flow-arrow{display:block;transform:rotate(90deg);height:20px}.how{padding:82px 20px}.how-path{grid-template-columns:1fr;gap:18px}.how-path article{display:grid;grid-template-columns:72px 1fr;text-align:left;align-items:center;column-gap:15px}.how-path article>span{grid-row:span 2;margin:0}.how-path article>p{margin:4px 0 0;max-width:none}.principles{grid-template-columns:1fr;margin-bottom:70px}.principles article+article{border-left:0;border-top:1px solid var(--line)}.programs-section,.families-section,.pricing-section{padding:75px 20px}.program-grid{grid-template-columns:1fr}.research-section{padding:82px 0}.research-inner{padding:0 20px}.final-cta{margin:0 12px;grid-template-columns:1fr;padding:55px 26px 0}.final-kavo{height:290px;margin-top:20px}.final-kavo>img{height:285px}.footer-top{grid-template-columns:1fr 1fr;gap:38px 24px}.footer-brand{grid-column:1/-1}.footer-bottom{flex-direction:column;gap:15px}.footer-bottom div{flex-wrap:wrap}.site-footer{padding-left:20px;padding-right:20px}}
.js-motion .magic-card,.js-motion .how-path article,.js-motion .principles article,.js-motion .program-grid article,.js-motion .research-points article{opacity:0;transform:translateY(14px);transition:opacity .55s ease var(--delay,0ms),transform .55s ease var(--delay,0ms)}.is-revealed{opacity:1!important;transform:none!important}@media(prefers-reduced-motion:reduce){.kavo-node::after{animation:none!important}.magic-card,.how-path article,.principles article,.program-grid article,.research-points article{opacity:1;transform:none}}
.legal-shell{max-width:980px;margin:0 auto;padding:90px 28px 110px}.legal-shell .kicker{margin-bottom:18px}.legal-shell h1{font-size:clamp(48px,6vw,78px);letter-spacing:-.06em;margin:0 0 18px}.legal-shell .legal-updated{color:#7b8298;font-size:13px;margin-bottom:45px}.legal-shell article{background:#fff;border:1px solid var(--line);border-radius:24px;padding:38px;box-shadow:var(--shadow-soft)}.legal-shell h2{font-size:25px;letter-spacing:-.035em;margin:36px 0 12px}.legal-shell h2:first-child{margin-top:0}.legal-shell p,.legal-shell li{color:#5f6780;line-height:1.75;font-size:15px}.legal-shell a{color:#5b38e6;text-decoration:underline}.simple-header{height:82px;display:flex;align-items:center;justify-content:space-between;padding:0 max(4vw,28px);border-bottom:1px solid var(--line);background:#fbfaff}.simple-header>a:last-child{font-size:14px;font-weight:750;color:#5b38e6}.not-found{min-height:75vh;display:grid;place-items:center;text-align:center;padding:40px}.not-found img{width:180px}.not-found h1{font-size:clamp(52px,8vw,100px);margin:10px 0}.not-found p{color:#6e758c;margin-bottom:24px}

@media(max-width:360px){.brand{max-width:128px}.brand-lockup{height:28px;max-width:104px}.hero h1{font-size:55px}.program-tab{padding:0 10px}.header-actions{margin-right:44px}}
.pricing-section>div,.pricing-card,.final-copy,.final-kavo{min-width:0}
@media(max-width:720px){[lang^="zh"] .section-heading h2,[lang^="zh"] .families-copy h2,[lang^="zh"] .research-inner h2,[lang^="zh"] .pricing-section h2,[lang^="zh"] .final-copy h2{font-size:30px;white-space:nowrap;letter-spacing:-.035em}}
@media(max-width:360px){[lang^="zh"] .section-heading h2,[lang^="zh"] .families-copy h2,[lang^="zh"] .research-inner h2,[lang^="zh"] .pricing-section h2,[lang^="zh"] .final-copy h2{font-size:27px}}

@media(max-width:1220px) and (min-width:1021px){.language-current-full{display:none}.language-current-code{display:inline}.language-picker{min-width:48px;justify-content:center}}
:is([lang="bn"],[lang="mr"],[lang="pa"],[lang="gu"],[lang="ta"],[lang="te"],[lang="hi"]){font-variant-ligatures:normal}
:is([lang="bn"],[lang="mr"],[lang="pa"],[lang="gu"],[lang="ta"],[lang="te"],[lang="hi"]) h1{letter-spacing:-.025em;line-height:1.08}
:is([lang="ar"],[lang="fa"],[lang="he"],[lang="ur"]) .hero h1{letter-spacing:-.03em;line-height:1.06}
:is([lang="ar"],[lang="fa"],[lang="he"],[lang="ur"]) .language-picker{direction:rtl}

/* v9.0 Question Quality */
.verified-proof{margin:0 0 18px;position:relative;width:max-content;max-width:100%}.verified-proof summary{list-style:none;display:inline-flex;align-items:center;gap:7px;padding:7px 10px;border:1px solid #dcd5ff;background:#f6f3ff;border-radius:999px;color:#5232ce;font-size:10px;cursor:pointer}.verified-proof summary::-webkit-details-marker{display:none}.verified-proof summary span{width:17px;height:17px;border-radius:50%;display:grid;place-items:center;background:#5c3edd;color:#fff;font-size:9px}.verified-proof>div{position:absolute;left:0;top:38px;z-index:20;width:235px;padding:13px 15px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-soft)}.verified-proof p{margin:5px 0;color:#646c84;font-size:10px}.verified-proof p::before{content:"✓";color:#5c3edd;font-weight:900;margin-right:6px}
.quality-section{padding:116px 35px;display:grid;grid-template-columns:.82fr 1.18fr;gap:82px;align-items:center}.quality-copy h2{font-size:clamp(46px,5vw,72px);line-height:1.02;letter-spacing:-.06em;margin:19px 0 21px}.quality-copy>p{color:#69718a;font-size:17px;line-height:1.65;max-width:590px}.quality-statement{display:grid;gap:4px;padding:19px 21px;margin:27px 0;border-left:3px solid #6d4be9;background:#f7f4ff;border-radius:0 15px 15px 0}.quality-statement strong{font-size:15px}.quality-statement span{font-size:12px;color:#6c748c}.quality-canvas{background:#fff;border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow);overflow:hidden}.quality-canvas>header{display:flex;justify-content:space-between;align-items:center;padding:22px 25px;border-bottom:1px solid var(--line)}.quality-canvas>header span{display:block;color:#6d748c;font-size:11px}.quality-canvas>header strong{display:block;margin-top:6px;font-size:17px}.verified-badge{display:flex!important;align-items:center;gap:7px!important;padding:8px 11px;border-radius:999px;background:#f1edff!important;color:#5434d3!important;font-weight:800!important}.verified-badge i{width:18px;height:18px;border-radius:50%;display:grid;place-items:center;background:#5c3edd;color:#fff;font-style:normal;font-size:10px}.quality-question{padding:27px 25px}.quality-question>p{font-family:Georgia,serif;font-size:29px;margin:0 0 20px}.quality-question>div{display:grid;grid-template-columns:1fr 1fr;gap:9px}.quality-question button{height:45px;text-align:left;padding:0 14px;border:1px solid #e3e1ed;border-radius:11px;background:#fff;color:#565d73}.quality-question button.is-key{border-color:#836af3;background:#f5f2ff;color:#4f31cc;box-shadow:inset 0 0 0 1px #836af3}.quality-meta{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.quality-meta>div{padding:17px 20px}.quality-meta>div+div{border-left:1px solid var(--line)}.quality-meta span{display:block;color:#81879b;font-size:9px;text-transform:uppercase;letter-spacing:.07em}.quality-meta strong{display:block;margin-top:6px;font-size:12px}.quality-checks{padding:18px 22px;display:grid;grid-template-columns:1fr 1fr;gap:11px}.quality-checks span{font-size:11px;color:#5f6780}.quality-checks span::before{content:"✓";display:inline-grid;place-items:center;width:18px;height:18px;margin-right:7px;border-radius:50%;background:#eee9ff;color:#5938d7;font-weight:900}.quality-canvas>footer{display:flex;gap:13px;align-items:center;margin:0 17px 17px;padding:16px 18px;border-radius:17px;background:linear-gradient(135deg,#faf9ff,#f1edff)}.quality-canvas>footer img{width:43px;height:43px}.quality-canvas>footer strong{display:block;font-size:12px;color:#5232ce}.quality-canvas>footer p{font-size:11px;color:#666e86;line-height:1.5;margin:4px 0 0}.research-link{color:#c4b8ff;text-decoration:underline;text-underline-offset:3px}
.standards-main{background:#fbfaff}.standards-hero{padding:100px 35px 90px;text-align:center}.standards-hero h1{font-size:clamp(50px,7vw,92px);line-height:.98;letter-spacing:-.07em;max-width:1050px;margin:24px auto}.standards-hero>p{max-width:760px;margin:0 auto;color:#69718a;font-size:18px;line-height:1.65}.standards-hero-proof{display:inline-grid;grid-template-columns:34px auto;column-gap:9px;align-items:center;text-align:left;margin-top:32px;padding:12px 17px;border:1px solid #dcd5ff;background:#fff;border-radius:17px;box-shadow:var(--shadow-soft)}.standards-hero-proof>span{grid-row:span 2;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:#5c3edd;color:#fff}.standards-hero-proof strong{font-size:13px}.standards-hero-proof small{color:#757d93}.standards-principles{padding:35px 35px 110px}.standards-principles>h2{font-size:42px;letter-spacing:-.05em}.standards-principles>div{display:grid;grid-template-columns:repeat(3,1fr);gap:17px;margin-top:35px}.standards-principles article{min-height:260px;padding:28px;border:1px solid var(--line);border-radius:23px;background:#fff}.standards-principles article>span{color:#6948e4;font-weight:900}.standards-principles h3{font-size:24px;letter-spacing:-.035em;margin:55px 0 13px}.standards-principles p,.workflow-list p,.standards-bottom p{color:#6c748b;line-height:1.65}.standards-workflow{padding:105px 0;background:#11142f;color:#fff}.standards-workflow>.section-shell{padding:0 35px}.workflow-list{margin-top:42px}.workflow-list article{display:grid;grid-template-columns:70px 1fr;gap:22px;padding:25px 0;border-top:1px solid rgba(255,255,255,.12)}.workflow-list article:last-child{border-bottom:1px solid rgba(255,255,255,.12)}.workflow-list b{color:#9f89ff;font-size:20px}.workflow-list h3{margin:0;font-size:24px}.workflow-list p{margin:7px 0 0;color:#aeb4ca}.standards-lifecycle{padding:105px 35px}.standards-lifecycle h2{font-size:clamp(35px,4vw,58px);letter-spacing:-.05em;max-width:900px}.lifecycle-track{display:flex;align-items:center;gap:12px;margin-top:45px;overflow:auto;padding-bottom:9px}.lifecycle-track span{flex:0 0 auto;padding:13px 17px;border:1px solid #ded9f3;background:#fff;border-radius:999px;font-size:12px;font-weight:780}.lifecycle-track i{flex:1 0 28px;height:2px;background:linear-gradient(90deg,#d8d1fa,#7655ef)}.standards-bottom{display:grid;grid-template-columns:1fr 1fr;gap:18px;padding:0 35px 110px}.standards-bottom article{padding:31px;border:1px solid var(--line);border-radius:24px;background:#fff}.standards-bottom h2{font-size:27px;letter-spacing:-.04em}.standards-bottom .button{margin-top:16px}
@media(max-width:1020px){.quality-section{grid-template-columns:1fr;gap:48px}.standards-principles>div{grid-template-columns:1fr}.standards-principles article{min-height:auto}.standards-principles h3{margin-top:28px}.standards-bottom{grid-template-columns:1fr}}
@media(max-width:720px){.verified-proof>div{position:static;margin-top:7px}.quality-section{padding:78px 20px}.quality-copy h2{font-size:38px}.quality-meta{grid-template-columns:1fr}.quality-meta>div+div{border-left:0;border-top:1px solid var(--line)}.quality-checks{grid-template-columns:1fr}.quality-canvas>header{align-items:flex-start;gap:14px}.verified-badge{font-size:10px!important}.standards-hero{padding:70px 20px 65px}.standards-hero h1{font-size:43px}.standards-principles,.standards-lifecycle,.standards-bottom{padding-left:20px;padding-right:20px}.standards-workflow>.section-shell{padding:0 20px}.workflow-list article{grid-template-columns:46px 1fr;gap:12px}.workflow-list h3{font-size:20px}[lang^="zh"] .quality-copy h2,[lang^="zh"] .standards-hero h1{white-space:nowrap;font-size:30px}}

@media(max-width:720px){[lang^="zh"] .standards-lifecycle h2{font-size:24px;white-space:nowrap;letter-spacing:-.035em}[lang^="zh"] .standards-principles h2,[lang^="zh"] .standards-bottom h2{white-space:nowrap}}
@media(max-width:390px){[lang^="zh"] .standards-lifecycle h2{font-size:21px}}

/* v9.0 locale and overflow refinements */
[lang="ja"] .standards-hero h1,[lang="ko"] .standards-hero h1{white-space:normal;word-break:keep-all}
.standards-lifecycle{overflow:hidden;min-width:0}.lifecycle-track{max-width:100%;min-width:0}


/* v10.0 — Learning Built Around You */
.hero{min-height:800px;grid-template-columns:minmax(555px,1.06fr) minmax(200px,.36fr) minmax(465px,.92fr);gap:20px}
.hero-copy{padding-bottom:0}
.hero h1{max-width:680px;margin:23px 0 10px;font-size:clamp(52px,4.1vw,70px);line-height:.98;white-space:normal;letter-spacing:-.067em;background:linear-gradient(108deg,#0f1533 10%,#0f1533 63%,#6040df 96%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-aspiration{width:max-content;max-width:100%;margin:0 0 17px;font-size:clamp(31px,2.55vw,45px);line-height:1.05;letter-spacing:-.055em;font-weight:850;background:linear-gradient(96deg,#6542e3,#8a61ff 57%,#4c35c6);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lede{font-size:clamp(18px,1.32vw,22px);line-height:1.55;letter-spacing:-.025em;margin-bottom:27px;max-width:670px}
.hero-lede span:last-child{color:#4e35ca}
.hero-proofline{display:flex;flex-wrap:wrap;gap:8px 15px;margin-top:21px;color:#69718a;font-size:11px;font-weight:720}
.hero-proofline span{display:inline-flex;align-items:center;gap:6px}
.hero-proofline span::before{content:"✓";width:18px;height:18px;display:grid;place-items:center;border-radius:50%;background:#eeeaff;color:#5a3bd5;font-size:10px;font-weight:900}
[dir="rtl"] .hero-proofline{direction:rtl}
[lang^="zh"] .hero h1{font-size:clamp(48px,4.6vw,66px);white-space:nowrap;letter-spacing:-.055em}
[lang^="zh"] .hero-aspiration{font-size:clamp(30px,3vw,42px);white-space:nowrap;letter-spacing:-.045em}
[lang="ja"] .hero h1,[lang="ko"] .hero h1{white-space:normal;font-size:clamp(43px,3.75vw,60px);line-height:1.04}
.programs-section h2,.families-copy h2,.research-inner h2,.pricing-section h2,.final-copy h2{text-wrap:balance}
.footer-brand p{font-size:16px;font-weight:760;line-height:1.55;color:#d0d2df}
.footer-brand p span:last-child{color:#b9a9ff}

@media(max-width:1240px){
  .hero{grid-template-columns:minmax(440px,.96fr) 210px minmax(440px,1fr);gap:17px}
  .hero h1{font-size:58px}
  .hero-aspiration{font-size:35px}
  [lang^="zh"] .hero h1{font-size:48px}
  [lang^="zh"] .hero-aspiration{font-size:31px}
}
@media(max-width:1020px){
  .hero{grid-template-columns:1fr 225px;padding-top:46px}
  .hero h1{max-width:700px;font-size:56px}
  .hero-aspiration{font-size:34px}
  .hero-proofline{max-width:620px}
  [lang^="zh"] .hero h1{font-size:46px}
  [lang^="zh"] .hero-aspiration{font-size:30px}
}
@media(max-width:720px){
  .hero{padding-top:40px}
  .hero h1{font-size:clamp(42px,11.4vw,55px);line-height:1.01;margin:22px 0 10px;letter-spacing:-.055em}
  .hero-aspiration{font-size:clamp(27px,7.2vw,34px);margin-bottom:16px}
  .hero-lede{font-size:17px;line-height:1.56;margin-bottom:24px}
  .hero-proofline{margin-top:18px;gap:8px 13px;font-size:10.5px}
  [lang^="zh"] .hero h1{font-size:30px;white-space:nowrap;letter-spacing:-.045em}
  [lang^="zh"] .hero-aspiration{font-size:25px;white-space:nowrap;letter-spacing:-.035em}
  [lang="ja"] .hero h1,[lang="ko"] .hero h1{font-size:36px}
  [lang^="zh"] .magic-heading h2,[lang^="zh"] .how .section-heading h2,[lang^="zh"] .quality-copy h2,[lang^="zh"] .programs-section .section-heading h2,[lang^="zh"] .families-copy h2,[lang^="zh"] .research-inner h2,[lang^="zh"] .pricing-section h2,[lang^="zh"] .final-copy h2{white-space:nowrap;font-size:28px;letter-spacing:-.04em}
}
@media(max-width:390px){
  [lang^="zh"] .hero h1{font-size:28px}
  [lang^="zh"] .hero-aspiration{font-size:23px}
  [lang^="zh"] .magic-heading h2,[lang^="zh"] .how .section-heading h2,[lang^="zh"] .quality-copy h2,[lang^="zh"] .programs-section .section-heading h2,[lang^="zh"] .families-copy h2,[lang^="zh"] .research-inner h2,[lang^="zh"] .pricing-section h2,[lang^="zh"] .final-copy h2{font-size:25px}
}
@media(max-width:360px){
  .hero h1{font-size:40px}
  [lang^="zh"] .hero h1{font-size:26px}
  [lang^="zh"] .hero-aspiration{font-size:21px}
  [lang^="zh"] .magic-heading h2,[lang^="zh"] .how .section-heading h2,[lang^="zh"] .quality-copy h2,[lang^="zh"] .programs-section .section-heading h2,[lang^="zh"] .families-copy h2,[lang^="zh"] .research-inner h2,[lang^="zh"] .pricing-section h2,[lang^="zh"] .final-copy h2{font-size:23px}
}

/* v10.0 Chinese headline scale */
[lang^="zh"] .quality-copy h2,[lang^="zh"] .families-copy h2{font-size:44px;white-space:nowrap;letter-spacing:-.045em}
@media(max-width:1240px) and (min-width:1021px){[lang^="zh"] .quality-copy h2,[lang^="zh"] .families-copy h2{font-size:32px}}
@media(max-width:1020px) and (min-width:721px){[lang^="zh"] .quality-copy h2,[lang^="zh"] .families-copy h2{font-size:40px}}

@media(max-width:720px){[lang^="zh"] .quality-copy h2,[lang^="zh"] .families-copy h2{font-size:28px;white-space:nowrap;letter-spacing:-.04em}}
@media(max-width:390px){[lang^="zh"] .quality-copy h2,[lang^="zh"] .families-copy h2{font-size:25px}}
@media(max-width:360px){[lang^="zh"] .quality-copy h2,[lang^="zh"] .families-copy h2{font-size:23px}}


/* Hero typography foundation */
.hero{
  min-height:770px;
  grid-template-columns:minmax(510px,1.02fr) minmax(195px,.37fr) minmax(490px,.94fr);
  gap:26px;
  padding-top:44px;
  padding-bottom:58px;
}
.hero-copy{max-width:660px;min-width:0;align-self:center;padding:6px 0 12px;overflow:visible}
.hero .eyebrow{padding:8px 14px;font-size:10px;letter-spacing:.045em;background:#f0ecff;border:1px solid #e7e1ff;box-shadow:0 7px 22px rgba(91,56,230,.045)}
.hero-title{
  max-width:650px;
  margin:24px 0 0;
  padding:0 0 .12em;
  color:var(--ink);
  background:none;
  font-size:clamp(50px,3.95vw,64px);
  line-height:1.08;
  letter-spacing:-.058em;
  font-weight:830;
  white-space:normal;
  overflow:visible;
  text-wrap:balance;
}
.hero-title-line{display:block;overflow:visible;padding-bottom:.11em;margin-bottom:-.07em}
.hero-title-line-primary{color:#11142f}
.hero-title-line-secondary{color:#11142f}
.hero-title-line-secondary em{font-style:normal;color:#6242e5}
.hero-title-line-secondary>span:not(:empty)+em{margin-inline-start:.12em}
.hero-title-line-secondary:has(>span:empty):has(>em:empty){display:none}
.hero-aspiration{
  width:auto;
  max-width:100%;
  margin:12px 0 0;
  color:#714ee7;
  background:none;
  font-size:clamp(27px,2.08vw,34px);
  line-height:1.2;
  letter-spacing:-.035em;
  font-weight:790;
  overflow:visible;
}
.hero-lede{
  max-width:610px;
  margin:23px 0 0;
  font-size:clamp(17px,1.27vw,20px);
  line-height:1.68;
  letter-spacing:-.016em;
  color:#414968;
}
.hero-lede span{display:block}
.hero-lede span:last-child{color:#5840d5}
.hero-conversion{max-width:625px;margin-top:26px;padding-top:22px;border-top:1px solid rgba(87,65,181,.12)}
.hero-conversion .program-tabs{margin:0 0 22px;gap:9px}
.hero-conversion .program-tab{height:44px;padding:0 16px;border-radius:11px}
.hero-actions{gap:20px;flex-wrap:wrap}
.hero-actions .button{min-height:55px;padding:0 24px}
.hero-actions .quiet-link{font-size:13.5px}
.hero-proofline{margin-top:18px;gap:9px 16px;font-size:10.5px;line-height:1.35}
.hero-proofline span{white-space:nowrap}
.hero-proofline span::before{width:17px;height:17px;flex:0 0 auto}

[lang^="zh"] .hero-title{font-size:clamp(42px,3.55vw,54px);line-height:1.16;letter-spacing:-.055em;white-space:nowrap;padding-bottom:.15em}
[lang^="zh"] .hero-title-line{padding-bottom:.14em;margin-bottom:-.08em}
[lang^="zh"] .hero-aspiration{margin-top:7px;font-size:clamp(28px,2.35vw,36px);line-height:1.26;letter-spacing:-.04em;font-weight:770}
[lang^="zh"] .hero-lede{font-size:clamp(17px,1.24vw,20px);line-height:1.75;letter-spacing:-.015em}

@media(max-width:1240px){
  .hero{grid-template-columns:minmax(430px,.96fr) 190px minmax(440px,1fr);gap:17px}
  .hero-title{font-size:56px;max-width:610px}
  .hero-aspiration{font-size:30px}
  [lang^="zh"] .hero-title{font-size:46px}
  [lang^="zh"] .hero-aspiration{font-size:29px}
}
@media(max-width:1020px){
  .hero{grid-template-columns:1fr 220px;padding-top:42px}
  .hero-copy{padding-right:12px;max-width:700px}
  .hero-title{font-size:54px;max-width:650px}
  .hero-aspiration{font-size:30px}
  .hero-conversion{max-width:640px}
  [lang^="zh"] .hero-title{font-size:43px}
  [lang^="zh"] .hero-aspiration{font-size:28px}
}
@media(max-width:720px){
  .hero{padding:38px 19px 34px}
  .hero-copy{padding:0;max-width:none}
  .hero .eyebrow{font-size:8.8px;padding:7px 10px;letter-spacing:.025em}
  .hero-title{margin-top:20px;font-size:clamp(39px,10.8vw,50px);line-height:1.1;letter-spacing:-.052em;padding-bottom:.1em}
  .hero-title-line{padding-bottom:.1em;margin-bottom:-.06em}
  .hero-aspiration{margin-top:9px;font-size:clamp(24px,6.7vw,30px);line-height:1.24}
  .hero-lede{margin-top:20px;font-size:16.5px;line-height:1.65}
  .hero-conversion{margin-top:22px;padding-top:19px}
  .hero-conversion .program-tabs{margin-bottom:19px;gap:7px}
  .hero-conversion .program-tab{height:40px;padding:0 12px;font-size:11.5px}
  .hero-actions{gap:14px}
  .hero-actions .button{min-height:52px;max-width:320px}
  .hero-actions .quiet-link{font-size:12.5px}
  .hero-proofline{margin-top:16px;gap:8px 12px;font-size:9.8px}
  [lang^="zh"] .hero-title{font-size:30px;line-height:1.2;letter-spacing:-.045em;white-space:nowrap}
  [lang^="zh"] .hero-aspiration{font-size:24px;line-height:1.3}
  [lang^="zh"] .hero-lede{font-size:16px;line-height:1.72}
}
@media(max-width:390px){
  [lang^="zh"] .hero-title{font-size:28px}
  [lang^="zh"] .hero-aspiration{font-size:22px}
}
@media(max-width:360px){
  .hero-title{font-size:38px}
  [lang^="zh"] .hero-title{font-size:26px}
  [lang^="zh"] .hero-aspiration{font-size:20px}
}


/* Responsive hero composition */
.hero-lede br{display:none}
.hero-path .path-step>div{min-width:0;max-width:118px;overflow-wrap:break-word}
.evidence-canvas{min-width:0}
.step-decision{left:40px}

/* Compact three-column layout for medium desktop widths */
@media(min-width:1281px) and (max-width:1399px){
  .hero{
    grid-template-columns:minmax(430px,1fr) 210px minmax(420px,.97fr);
    gap:15px;
    padding-left:max(3.25vw,34px);
    padding-right:max(3.25vw,34px);
  }
  .hero-copy{max-width:560px}
  .hero-title{font-size:clamp(50px,4vw,55px);max-width:560px}
  .hero-aspiration{font-size:29px}
  .hero-lede{font-size:17px;max-width:545px}
  .hero-path .path-step>div{max-width:105px}
  .step-answer{left:0}
  .step-signal{left:17px}
  .step-insight{left:0}
  .step-decision{left:18px}
  .step-kavo{left:8px}
  .canvas-body{grid-template-columns:minmax(0,1fr) 142px;gap:16px;padding-left:22px;padding-right:22px}
  .canvas-head>div{padding-left:22px;padding-right:22px}
  .evidence-metrics{gap:8px}
  .canvas-next{margin-left:14px;margin-right:14px;padding-left:18px;padding-right:18px}
}

/* One-column editorial layout for small desktops and tablets.
   The path becomes a clear horizontal bridge between the message and evidence. */
@media(min-width:721px) and (max-width:1280px){
  .hero{
    display:grid;
    grid-template-columns:1fr;
    gap:0;
    min-height:auto;
    padding-top:42px;
    padding-bottom:58px;
    overflow:hidden;
  }
  .hero-copy{width:min(100%,780px);max-width:none;padding-right:0}
  .hero-title{font-size:clamp(48px,5.1vw,57px);max-width:740px}
  [lang="en"] .hero-title-line,[lang^="zh"] .hero-title-line{white-space:nowrap}
  .hero-aspiration{font-size:clamp(27px,2.7vw,31px)}
  .hero-lede{max-width:720px;font-size:17px}
  .hero-conversion{max-width:700px}
  .hero-path{
    order:2;
    width:min(100%,930px);
    height:auto;
    margin:34px auto 30px;
    padding:18px 0 10px;
    display:grid;
    grid-template-columns:repeat(5,minmax(0,1fr));
    gap:8px;
    align-items:start;
    position:relative;
  }
  .hero-path::before{
    content:"";
    position:absolute;
    left:8%;right:8%;top:45px;height:1px;
    background:linear-gradient(90deg,#ddd6ff,#7655ef,#ddd6ff);
  }
  .path-line{display:none}
  .path-step{
    position:relative!important;
    left:auto!important;
    top:auto!important;
    width:auto;
    display:grid;
    justify-items:center;
    gap:7px;
    text-align:center;
    opacity:1;
    animation:none;
  }
  .hero-path .path-step>div{max-width:150px;min-width:0}
  .path-step strong{font-size:13px}
  .path-step small{font-size:10px;line-height:1.35;margin-top:3px}
  .path-icon{width:52px;height:52px;position:relative;z-index:2}
  .kavo-node{width:57px;height:57px;position:relative;z-index:2}
  .step-kavo strong{font-size:13px}
  .evidence-canvas{
    order:3;
    grid-column:auto;
    width:min(100%,900px);
    justify-self:center;
    margin:0 auto;
    min-height:auto;
  }
  .canvas-body{grid-template-columns:minmax(0,1fr) 170px}
}

@media(min-width:721px) and (max-width:900px){
  .hero{padding-left:28px;padding-right:28px}
  .hero-title{font-size:clamp(43px,5.8vw,49px)}
  .hero-aspiration{font-size:26px}
  .hero-lede{font-size:16.5px}
  .hero-path{margin-top:30px;gap:5px}
  .hero-path .path-step>div{max-width:122px}
  .path-step strong{font-size:12px}
  .path-step small{font-size:9px}
  .path-icon{width:48px;height:48px}
  .kavo-node{width:53px;height:53px}
}

[lang^="zh"] .hero-lede br{display:none}


/* v10.2 — Compact editorial hero */
.hero{
  min-height:720px;
  grid-template-columns:minmax(575px,1.1fr) minmax(175px,.32fr) minmax(480px,.92fr);
  gap:22px;
  padding-top:40px;
  padding-bottom:50px;
}
.hero-copy{max-width:690px;padding-top:0;padding-bottom:6px}
.hero-title{
  max-width:620px;
  margin-top:22px;
  padding-bottom:.10em;
  font-size:clamp(46px,3.5vw,56px);
  line-height:1.06;
  letter-spacing:-.056em;
}
[lang="en"] .hero-title-line{white-space:nowrap}
.hero-aspiration{display:none!important}
.hero-lede{
  max-width:680px;
  margin-top:26px;
  font-size:clamp(16px,1.18vw,18px);
  line-height:1.58;
}
.hero-lede span+span{margin-top:3px}
@media(min-width:721px){
  [lang="en"] .hero-lede span:first-child{white-space:nowrap}
}
.hero-conversion{margin-top:25px}

@media(min-width:1281px) and (max-width:1399px){
  .hero{
    grid-template-columns:minmax(515px,1fr) 180px minmax(420px,.92fr);
    gap:16px;
    padding-left:max(3.1vw,32px);
    padding-right:max(3.1vw,32px);
  }
  .hero-copy{max-width:570px}
  .hero-title{max-width:565px;font-size:48px}
  .hero-lede{max-width:565px;font-size:16px;letter-spacing:-.022em}
  .hero-path .path-step>div{max-width:102px}
  .step-answer{left:0}.step-signal{left:12px}.step-insight{left:0}.step-decision{left:14px}.step-kavo{left:5px}
}

@media(min-width:721px) and (max-width:1280px){
  .hero{display:grid;grid-template-columns:1fr;min-height:auto;padding-top:38px;padding-bottom:54px}
  .hero-copy{width:min(100%,800px);max-width:none}
  .hero-title{max-width:720px;font-size:clamp(42px,4.2vw,49px)}
  .hero-lede{max-width:760px;font-size:16.5px}
  .hero-path{margin-top:24px;margin-bottom:24px}
}

@media(min-width:721px) and (max-width:900px){
  .hero-title{font-size:clamp(39px,4.85vw,43px)}
  .hero-lede{font-size:15.5px;letter-spacing:-.024em}
}

@media(max-width:720px){
  .hero{padding:34px 19px 32px}
  .hero-title{font-size:clamp(30px,8.25vw,36px);line-height:1.05;letter-spacing:-.052em;margin-top:19px}
  [lang="en"] .hero-title-line{white-space:nowrap}
  .hero-lede{margin-top:22px;font-size:16px;line-height:1.58}
  [lang="en"] .hero-lede span:first-child{white-space:normal}
  .hero-conversion{margin-top:21px;padding-top:18px}
}

@media(max-width:350px){
  [lang="en"] .hero-title{font-size:28px;letter-spacing:-.048em}
}


/* v10.2.1 final specificity correction */
.hero h1.hero-title{font-size:clamp(46px,3.5vw,56px);max-width:620px}
@media(min-width:1281px) and (max-width:1399px){.hero h1.hero-title{font-size:48px;max-width:565px}}
@media(min-width:721px) and (max-width:1280px){.hero h1.hero-title{font-size:clamp(42px,4.2vw,49px);max-width:720px}}
@media(min-width:721px) and (max-width:900px){.hero h1.hero-title{font-size:clamp(39px,4.85vw,43px)}}
@media(max-width:720px){.hero h1.hero-title{font-size:clamp(30px,8.25vw,36px)}}
@media(max-width:350px){.hero h1.hero-title{font-size:28px}}


/* v10.2.1 final path-column spacing */
@media(min-width:1400px){
  .hero{grid-template-columns:minmax(545px,1.04fr) minmax(205px,.38fr) minmax(480px,.92fr);gap:20px}
  .hero-copy{max-width:570px}
  .hero-path .path-step{width:185px;gap:10px}
  .hero-path .path-step>div{max-width:105px}
  .step-answer{left:0}.step-signal{left:8px}.step-insight{left:0}.step-decision{left:10px}.step-kavo{left:5px}
}
@media(min-width:1281px) and (max-width:1399px){
  .hero-path .path-step{width:180px;gap:9px}
  .hero-path .path-step>div{max-width:98px}
  .step-answer{left:0}.step-signal{left:7px}.step-insight{left:0}.step-decision{left:7px}.step-kavo{left:3px}
}


/* v10.2 final precision patch */
.hero-lede-short{display:none}
[lang="en"] .hero-lede-full{white-space:nowrap}
@media(min-width:1400px){
  .hero{
    grid-template-columns:minmax(545px,1.06fr) 205px minmax(480px,.94fr);
    gap:18px;
  }
  .hero-copy{max-width:590px}
  .hero-path .path-step>div{max-width:112px}
  .step-answer{left:0}.step-signal{left:12px}.step-insight{left:0}.step-decision{left:14px}.step-kavo{left:4px}
}
@media(max-width:720px){
  [lang="en"] .hero-lede-full{display:none}
  [lang="en"] .hero-lede-short{display:block;white-space:nowrap}
}


/* v10.2.1 — exact requested hero refinements */
.hero-aspiration{display:none!important}
.hero h1.hero-title{
  max-width:620px;
  font-size:clamp(46px,3.5vw,56px);
  line-height:1.06;
  padding-bottom:.10em;
}
.hero-lede-short{display:none}
[lang="en"] .hero-lede-full{display:block;white-space:nowrap}
@media(min-width:1281px) and (max-width:1399px){
  .hero h1.hero-title{font-size:48px;max-width:565px}
  [lang="en"] .hero-lede{font-size:16px;letter-spacing:-.022em;max-width:590px}
}
@media(min-width:721px) and (max-width:1280px){
  .hero h1.hero-title{font-size:clamp(42px,4.2vw,49px);max-width:720px}
  [lang="en"] .hero-lede{max-width:760px}
}
@media(min-width:721px) and (max-width:900px){
  .hero h1.hero-title{font-size:clamp(39px,4.85vw,43px)}
  [lang="en"] .hero-lede{font-size:15.5px;letter-spacing:-.024em}
}
@media(max-width:720px){
  .hero h1.hero-title{font-size:clamp(30px,8.25vw,36px)}
  [lang="en"] .hero-lede-full{display:none}
  [lang="en"] .hero-lede-short{display:block;white-space:nowrap}
}
@media(max-width:350px){
  .hero h1.hero-title{font-size:28px}
  [lang="en"] .hero-lede-short{font-size:15px}
}


/* v10.2.1 — responsive lede visibility specificity */
.hero-lede .hero-lede-short{display:none!important}
@media(max-width:720px){
  [lang="en"] .hero-lede .hero-lede-full{display:none!important}
  [lang="en"] .hero-lede .hero-lede-short{display:block!important;white-space:nowrap}
}


/* v10.2.2 — latest-base section-title consistency and explainable-personalization layout */
:root{--home-section-title-size:clamp(30px,3vw,48px)}
.magic-heading h2,
.how .section-heading h2,
.quality-copy h2,
.programs-section .section-heading h2,
.families-copy h2,
.research-inner h2,
.pricing-section h2,
.final-copy h2{
  font-size:var(--home-section-title-size);
  line-height:1.06;
  letter-spacing:-.05em;
  margin-top:17px;
}
[lang^="zh"] .magic-heading h2,
[lang^="zh"] .how .section-heading h2,
[lang^="zh"] .quality-copy h2,
[lang^="zh"] .programs-section .section-heading h2,
[lang^="zh"] .families-copy h2,
[lang^="zh"] .research-inner h2,
[lang^="zh"] .pricing-section h2,
[lang^="zh"] .final-copy h2{
  font-size:var(--home-section-title-size);
  white-space:nowrap;
  letter-spacing:-.045em;
}
.research-inner{
  grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);
  gap:clamp(56px,6vw,104px);
  align-items:start;
}
.research-inner>div:first-child{min-width:0;padding-top:4px}
.research-inner h2{max-width:none}
.research-inner>div>p{max-width:610px;margin-top:18px}
.research-points{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
}
.research-points article{
  min-width:0;
  min-height:142px;
  grid-template-columns:42px minmax(0,1fr);
  align-content:start;
  padding:24px;
}
.research-points strong{font-size:15px;line-height:1.35}
.research-points p{font-size:12.5px;line-height:1.55;margin-top:8px}
.research-link{display:inline-flex;align-items:center;gap:7px;text-decoration:none}
.research-link::after{content:"→";font-weight:900}

@media(max-width:1180px){
  .research-inner{grid-template-columns:1fr;gap:42px}
  .research-inner>div>p{max-width:680px}
}
@media(max-width:720px){
  :root{--home-section-title-size:28px}
  .research-points{grid-template-columns:1fr;gap:13px}
  .research-points article{min-height:auto;padding:20px}
}
@media(max-width:390px){:root{--home-section-title-size:25px}}
@media(max-width:360px){:root{--home-section-title-size:23px}}


/* v10.2.2 — keep long single-line Chinese section titles within the CTA at tablet edge widths */
@media(max-width:820px){
  .final-cta{margin:0 12px;grid-template-columns:1fr;padding:55px 26px 0}
  .final-kavo{height:290px;margin-top:20px}
  .final-kavo>img{height:285px}
}


/* v10.3.0 — Hi! Kavo learner-facing positioning */
.primary-nav{gap:clamp(18px,2vw,28px)}
.primary-nav a{white-space:nowrap}

.hero{min-height:760px}
.hero-kavo-intro{display:flex;align-items:center;gap:16px;max-width:640px;margin:23px 0 0}
.hero-kavo-avatar{width:76px;height:76px;flex:0 0 auto;object-fit:contain;filter:drop-shadow(0 12px 24px rgba(66,42,150,.13))}
.hero-kavo-copy{min-width:0}
.hero-kavo-copy>strong{display:block;color:#242949;font-size:17px;line-height:1.38;letter-spacing:-.018em;font-weight:780}
.hero-kavo-system{max-width:610px;margin:8px 0 0!important;font-size:15.5px!important;line-height:1.48!important;letter-spacing:-.015em!important}
.hero-kavo-system span{display:block!important}
.hero-kavo-system span+span{margin-top:2px;color:#5b3ddd}
.hero-conversion{margin-top:22px}
.step-kavo .kavo-node img{width:100%;height:100%;object-fit:contain;border-radius:50%}

.kavo-section{padding:26px 34px 112px}
.kavo-stage{display:grid;grid-template-columns:minmax(300px,.78fr) minmax(0,1.22fr);gap:clamp(44px,6vw,92px);min-height:580px;padding:0 clamp(36px,5vw,76px);border:1px solid #dfdaf4;border-radius:34px;background:linear-gradient(135deg,#f8f6ff 0%,#f1edff 54%,#fbfaff 100%);box-shadow:0 24px 68px rgba(66,45,148,.10);overflow:hidden;position:relative}
.kavo-stage::before{content:"";position:absolute;width:680px;height:420px;left:-190px;bottom:-245px;border:2px solid rgba(112,78,237,.13);border-radius:50%;transform:rotate(-9deg)}
.kavo-stage::after{content:"";position:absolute;width:500px;height:240px;right:-140px;top:-155px;background:radial-gradient(ellipse,rgba(139,112,255,.17),transparent 68%);pointer-events:none}
.kavo-visual{min-width:0;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;position:relative;z-index:2;padding-top:42px}
.kavo-visual .kicker{align-self:flex-start;position:absolute;left:0;top:42px}
.kavo-full{display:block;width:auto;height:min(500px,43vw);max-height:500px;object-fit:contain;object-position:center bottom;filter:drop-shadow(0 24px 34px rgba(42,37,94,.16))}
.kavo-signature{position:absolute;left:8px;bottom:28px;display:inline-flex;align-items:center;padding:9px 13px;border-radius:999px;background:rgba(255,255,255,.9);border:1px solid rgba(109,79,232,.17);color:#5135ca;font-size:11px;font-weight:800;letter-spacing:.02em;box-shadow:0 10px 25px rgba(69,47,154,.10)}
.kavo-copy{min-width:0;align-self:center;position:relative;z-index:2;padding:72px 0 66px}
.kavo-copy h2{font-size:var(--home-section-title-size);line-height:1.06;letter-spacing:-.05em;margin:18px 0 0;max-width:720px}
.kavo-copy>p{max-width:660px;margin:20px 0 0;color:#626a83;font-size:17px;line-height:1.65}
.kavo-journey{margin-top:34px;border-top:1px solid rgba(97,70,204,.14)}
.kavo-step{display:grid;grid-template-columns:48px minmax(0,1fr);gap:18px;padding:21px 0;border-bottom:1px solid rgba(97,70,204,.14);transform:translateY(10px);transition:.45s ease}
.js-motion .kavo-step{opacity:0;transform:translateY(14px)}
.kavo-step.is-revealed{opacity:1;transform:none;transition-delay:var(--delay,0ms)}
.kavo-step>span{color:#7655ef;font-size:13px;font-weight:850;padding-top:3px}
.kavo-step strong{display:block;font-size:18px;letter-spacing:-.02em}
.kavo-step p{margin:7px 0 0;color:#6a7188;font-size:13.5px;line-height:1.55;max-width:620px}

.families-title-short{display:none}
.footer-kavo-lockup{width:max-content;max-width:100%;margin:15px 0 0;padding:7px 11px;border:1px solid rgba(164,145,255,.27);border-radius:999px;color:#d9d0ff;font-size:11px;font-weight:780;letter-spacing:.02em}

@media(max-width:1180px){
  .site-header{grid-template-columns:minmax(0,1fr) auto}
  .language-current-full{display:none}.language-current-code{display:inline}
  .language-picker{min-width:48px;justify-content:center}
  .primary-nav{position:fixed;left:18px;right:18px;top:78px;display:none;flex-direction:column;align-items:stretch;background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:var(--shadow);z-index:101}
  .primary-nav.is-open{display:flex}
  .primary-nav a{padding:10px}
  .menu-toggle{display:flex;width:44px;height:44px;border:1px solid var(--line);border-radius:13px;background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px;position:absolute;right:18px}
  .menu-toggle span{width:18px;height:2px;background:#343a57;border-radius:2px}
  .header-actions{margin-right:55px}
  .login-link{display:none}
}

@media(min-width:721px) and (max-width:1280px){
  .hero{min-height:auto}
  .hero-kavo-intro{max-width:760px}
}

@media(max-width:1020px){
  .kavo-stage{grid-template-columns:minmax(240px,.62fr) minmax(0,1.38fr);gap:34px;padding:0 38px}
  .kavo-full{height:430px}
  .kavo-copy{padding:62px 0 58px}
}

@media(max-width:720px){
  .hero-kavo-intro{align-items:flex-start;gap:12px;margin-top:20px}
  .hero-kavo-avatar{width:58px;height:58px}
  .hero-kavo-copy>strong{font-size:14px;line-height:1.42}
  .hero-kavo-system{font-size:13px!important;line-height:1.48!important;margin-top:6px!important}
  .kavo-section{padding:20px 12px 78px}
  .kavo-stage{grid-template-columns:1fr;gap:0;padding:0 22px;border-radius:28px}
  .kavo-copy{order:1;padding:48px 0 18px}
  .kavo-copy h2{font-size:var(--home-section-title-size);white-space:nowrap;letter-spacing:-.045em}
  .kavo-copy>p{font-size:15px;line-height:1.62}
  .kavo-journey{margin-top:27px}
  .kavo-step{grid-template-columns:38px minmax(0,1fr);gap:12px;padding:18px 0}
  .kavo-step strong{font-size:16px}
  .kavo-step p{font-size:12.5px}
  .kavo-visual{order:2;height:340px;padding:12px 0 0;justify-content:flex-end}
  .kavo-visual .kicker{display:none}
  .kavo-full{height:325px;max-width:100%}
  .kavo-signature{left:0;bottom:18px}
  [lang^="zh"] .families-title-full{display:none}
  [lang^="zh"] .families-title-short{display:inline}
}

@media(max-width:390px){
  .hero-kavo-avatar{width:52px;height:52px}
  .hero-kavo-copy>strong{font-size:13px}
  .hero-kavo-system{font-size:12.2px!important}
  .kavo-stage{padding:0 18px}
  .kavo-copy h2{font-size:23px}
  .kavo-visual{height:310px}
  .kavo-full{height:295px}
}

@media(prefers-reduced-motion:reduce){
  .kavo-step{opacity:1;transform:none;transition:none}
}

/* v10.3.0 anchor offset for the sticky header */
#magic,#about,#question-quality,#kavo,#programs,#families,#research,#pricing{scroll-margin-top:110px}
@media(max-width:720px){#magic,#about,#question-quality,#kavo,#programs,#families,#research,#pricing{scroll-margin-top:84px}}

/* v10.3.0 QA refinement — let long localized Kavo titles wrap on narrow screens while preserving compact Chinese titles */
@media(max-width:720px){
  .kavo-copy h2{white-space:normal;overflow-wrap:anywhere;text-wrap:balance}
  [lang^="zh"] .kavo-copy h2{white-space:nowrap;overflow-wrap:normal}
}

/* v10.3.0 QA refinement — preserve one-line Chinese section headings at 320px */
@media(max-width:330px){
  :root{--home-section-title-size:22px}
  [lang^="zh"] .magic-heading h2,
  [lang^="zh"] .how .section-heading h2,
  [lang^="zh"] .quality-copy h2,
  [lang^="zh"] .kavo-copy h2,
  [lang^="zh"] .programs-section .section-heading h2,
  [lang^="zh"] .families-copy h2,
  [lang^="zh"] .research-inner h2,
  [lang^="zh"] .pricing-section h2,
  [lang^="zh"] .final-copy h2{font-size:22px}
}

/* ── 动效层 ─────────────────────────────────────────────────────────────
   门控原则：所有「初始隐藏」只在 .js-motion 下生效。JS 未执行、
   出错或用户开启减弱动效时，内容一律直接可见，绝不永久隐藏。 */

/* 1) 首屏分层入场 */
@keyframes heroRise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes heroRiseSide{from{opacity:0;transform:translateY(18px) scale(.985)}to{opacity:1;transform:none}}
.js-motion :is(.hero .eyebrow,.hero-title,.hero-kavo-intro,.hero-lede,.hero-conversion,.hero-proofline){
  animation:heroRise .62s cubic-bezier(.22,.61,.36,1) both;animation-delay:var(--rise,0ms)}
.js-motion .hero .eyebrow{--rise:0ms}
.js-motion .hero-title{--rise:70ms}
.js-motion .hero-kavo-intro{--rise:150ms}
.js-motion .hero-lede{--rise:210ms}
.js-motion .hero-conversion{--rise:280ms}
.js-motion .hero-proofline{--rise:350ms}
.js-motion .evidence-canvas{animation:heroRiseSide .72s cubic-bezier(.22,.61,.36,1) both;animation-delay:240ms}

/* 2) Kavo 区块 —— 本版新的定位重心 */
/* 用过渡而非 animation…forwards：终态是真实的计算样式，
   即使动画被禁用或未执行，加上 .is-live 后仍会到达可见状态。
   Kavo 形象是品牌主视觉，不能因动画失败而隐形。 */
@keyframes kavoBreathe{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}
.js-motion :is(.kavo-full,.kavo-visual .kicker,.kavo-signature){
  opacity:0;transform:translateY(18px);
  transition:opacity .8s cubic-bezier(.22,.61,.36,1) var(--kd,0ms),
             transform .8s cubic-bezier(.22,.61,.36,1) var(--kd,0ms)}
.js-motion .kavo-visual .kicker{--kd:120ms}
.js-motion .kavo-signature{--kd:520ms}
.js-motion .kavo-section.is-live :is(.kavo-full,.kavo-visual .kicker,.kavo-signature){
  opacity:1;transform:none}
/* 呼吸只作用在内层包裹，避免与入场 transform 打架 */
.js-motion .kavo-section.is-live .kavo-full{animation:kavoBreathe 7s ease-in-out 1.2s infinite}

/* 3) 进度环从 0 扫到目标值（注册属性后 conic-gradient 角度才可过渡） */
@property --progress{syntax:"<number>";inherits:false;initial-value:0}
.progress-ring{transition:--progress .9s cubic-bezier(.22,.61,.36,1)}

/* 4) 顶栏滚动后浮起 */
.site-header{transition:box-shadow .25s ease,background-color .25s ease}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(64,44,151,.07);background:rgba(251,250,255,.94)}

/* 5) 切换科目时数值淡入淡出，避免硬跳 */
.evidence-metrics strong,[data-goal-value],[data-progress],[data-evidence-count],
[data-next-title],[data-next-focus]{transition:opacity .18s ease}
.evidence-canvas.is-switching :is(.evidence-metrics strong,[data-goal-value],[data-progress],
[data-evidence-count],[data-next-title],[data-next-focus]){opacity:.35}

/* 6) magic 流程箭头与柱状图依次点亮 */
@keyframes flowPulse{0%{opacity:.25;transform:translateX(-3px)}55%{opacity:1;transform:none}100%{opacity:.65;transform:none}}
@keyframes barGrow{to{transform:none}}
.js-motion .magic-flow .flow-arrow{opacity:.25}
.js-motion .magic-flow.is-flowing .flow-arrow{animation:flowPulse .5s ease forwards;animation-delay:var(--flow-delay,0ms)}
.mini-chart i{transform-origin:bottom}
.js-motion .mini-chart i{transform:scaleY(0)}
.js-motion .magic-flow.is-flowing .mini-chart i{animation:barGrow .5s cubic-bezier(.22,.61,.36,1) forwards;
  animation-delay:calc(var(--bar-i,0)*70ms + 160ms)}
.mini-chart i:nth-child(1){--bar-i:0}.mini-chart i:nth-child(2){--bar-i:1}
.mini-chart i:nth-child(3){--bar-i:2}.mini-chart i:nth-child(4){--bar-i:3}
.mini-chart i:nth-child(5){--bar-i:4}

/* 7) 交互反馈：按钮箭头前推、卡片悬停微抬 */
.button svg,.quiet-link svg{transition:transform .22s cubic-bezier(.22,.61,.36,1)}
.button:hover svg,.button:focus-visible svg,.quiet-link:hover svg,.quiet-link:focus-visible svg{transform:translateX(3px)}
[dir="rtl"] .button:hover svg,[dir="rtl"] .button:focus-visible svg,
[dir="rtl"] .quiet-link:hover svg,[dir="rtl"] .quiet-link:focus-visible svg{transform:translateX(-3px)}
.magic-card,.principles article,.parent-report,.kavo-step{transition:transform .22s ease,box-shadow .22s ease}
.magic-card:hover,.principles article:hover{transform:translateY(-2px)}

/* 8) 常驻微动 */
@keyframes kavoFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}
.js-motion .final-kavo>img{animation:kavoFloat 6s ease-in-out infinite}
@keyframes streakBeat{0%,100%{transform:rotate(-10deg) scale(1)}50%{transform:rotate(-10deg) scale(1.12)}}
.js-motion .streak-dot{animation:streakBeat 2.6s ease-in-out infinite}

@media(prefers-reduced-motion:reduce){
  .js-motion :is(.hero .eyebrow,.hero-title,.hero-kavo-intro,.hero-lede,.hero-conversion,
  .hero-proofline,.evidence-canvas,.kavo-full,.kavo-visual .kicker,.kavo-signature,
  .final-kavo>img,.streak-dot){animation:none;opacity:1;transform:none}
  .js-motion .kavo-step{opacity:1;transform:none}
  .progress-ring,.site-header,.button svg,.quiet-link svg,.magic-card,.principles article,
  .parent-report,.kavo-step{transition:none}
  .js-motion .mini-chart i{transform:none}
  .js-motion .magic-flow .flow-arrow{opacity:.65}
  .js-motion .magic-flow.is-flowing .flow-arrow{animation:none}
  .evidence-canvas.is-switching :is(.evidence-metrics strong,[data-goal-value],[data-progress],
  [data-evidence-count],[data-next-title],[data-next-focus]){opacity:1}
}