:root{
  --ink:#13233a;--ink-2:#2e4058;--muted:#62748a;--line:#dfe6ee;--line-strong:#cbd6e2;
  --bg:#ffffff;--soft:#f5f7fa;--soft-blue:#eef5ff;--blue:#1668dc;--blue-dark:#0e55ba;
  --green:#15735a;--green-soft:#edf8f3;--amber:#a46100;--amber-soft:#fff5df;--navy:#0c1b2f;
  --shadow:0 16px 45px rgba(25,42,67,.08);--radius:18px;--radius-lg:28px;--max:1180px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:92px}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg);font-size:16px;line-height:1.62;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button{cursor:pointer}.container{width:min(var(--max),calc(100% - 40px));margin-inline:auto}.icon-svg{width:20px;height:20px;flex:0 0 auto}.eyebrow{font-size:12px;line-height:1.2;text-transform:uppercase;letter-spacing:.12em;font-weight:800;color:var(--blue);margin-bottom:13px}.eyebrow.light{color:#8fc1ff}h1,h2,h3,p{margin-top:0}h1,h2,h3{letter-spacing:-.025em;line-height:1.12}h1{font-size:clamp(42px,6.2vw,76px);letter-spacing:-.055em}h2{font-size:clamp(30px,4vw,44px)}h3{font-size:21px}p{color:var(--ink-2)}:focus-visible{outline:3px solid #1668dc;outline-offset:3px}
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(223,230,238,.9)}.navbar{height:72px;display:flex;align-items:center;gap:34px}.brand{display:inline-flex;align-items:center;gap:11px;font-weight:850;letter-spacing:-.025em}.brand-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:11px;background:var(--ink);color:#fff;font-size:11px;letter-spacing:-.02em}.brand-name{font-size:18px}.navlinks{display:flex;align-items:center;gap:5px}.nav-link{font-size:14px;font-weight:700;color:#50647d;padding:10px 12px;border-radius:10px}.nav-link:hover,.nav-link.active{color:var(--ink);background:var(--soft)}.nav-link.active{color:var(--blue)}.nav-actions{margin-left:auto;display:flex;gap:8px}.icon-btn{width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:11px;color:var(--ink);display:grid;place-items:center}.icon-btn:hover{background:var(--soft)}.menu-btn{display:none}
.btn{min-height:46px;border-radius:12px;padding:0 17px;border:1px solid transparent;display:inline-flex;align-items:center;justify-content:center;gap:9px;font-size:14px;font-weight:800;transition:.18s ease}.btn .icon-svg{width:17px}.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 20px rgba(22,104,220,.16)}.btn-primary:hover{background:var(--blue-dark);transform:translateY(-1px)}.btn-secondary{background:#fff;border-color:var(--line-strong);color:var(--ink)}.btn-secondary:hover{border-color:#aebdcc;background:var(--soft)}.btn-light{background:#fff;color:var(--navy)}.link-button{border:0;background:transparent;color:var(--blue);font-size:13px;font-weight:800;padding:4px}.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}
.home-hero{padding:74px 0 70px;background:linear-gradient(180deg,#f5f9ff 0,#fff 100%);border-bottom:1px solid var(--line)}.hero-layout{display:grid;grid-template-columns:1.12fr .88fr;gap:64px;align-items:center}.hero-copy h1{margin:0 0 22px}.hero-copy h1 span{color:var(--blue)}.hero-lead{font-size:20px;max-width:680px;color:#50647d}.hero-facts{display:flex;gap:24px;margin-top:31px;padding-top:22px;border-top:1px solid var(--line);color:var(--muted);font-size:13px}.hero-facts b{color:var(--ink);font-size:17px;margin-right:4px}.hero-visual{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow);position:relative}.visual-label{font-size:12px;text-transform:uppercase;letter-spacing:.09em;font-weight:800;color:var(--muted);padding:2px 2px 15px}.system-stack{display:grid;gap:9px}.system-stack a{display:flex;align-items:center;gap:15px;padding:16px;border:1px solid var(--line);border-radius:15px;transition:.16s;background:#fff}.system-stack a:hover{border-color:#a9c8f2;transform:translateX(3px);box-shadow:0 8px 20px rgba(22,104,220,.06)}.system-stack a>span{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:var(--soft-blue);color:var(--blue);font-size:12px;font-weight:900}.system-stack b,.system-stack small{display:block}.system-stack small{color:var(--muted);margin-top:2px}
.section{padding:78px 0}.section.compact{padding:28px 0}.section-tint{background:var(--soft)}.section-dark{background:var(--navy);color:#fff}.section-dark p{color:#c2cfdd}.section-head,.split-head{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;margin-bottom:30px}.section-head h2,.split-head h2{margin-bottom:7px}.section-head p,.split-head>p{margin:0;max-width:680px;color:var(--muted)}.split-head>div{max-width:650px}.split-head>p{max-width:390px}.section-note{font-size:12px;font-weight:800;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:7px 10px;white-space:nowrap}.grid{display:grid;gap:16px}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.feature-card{min-height:260px;border:1px solid var(--line);border-radius:18px;padding:21px;background:#fff;display:flex;flex-direction:column;transition:.18s;box-shadow:0 5px 18px rgba(25,42,67,.025)}.feature-card:hover{transform:translateY(-3px);border-color:#b7c9dd;box-shadow:0 16px 36px rgba(25,42,67,.08)}.feature-icon{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:var(--soft-blue);color:var(--blue);margin-bottom:26px}.card-kicker{font-size:11px;letter-spacing:.11em;text-transform:uppercase;font-weight:850;color:var(--muted)}.feature-card h3{margin:8px 0}.feature-card p{font-size:14px;color:var(--muted);margin-bottom:24px}.card-more{display:flex;align-items:center;gap:7px;color:var(--blue);font-size:13px;font-weight:800;margin-top:auto}.card-more .icon-svg{width:16px}
.learning-path{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.learning-path a{border:1px solid var(--line);background:#fff;border-radius:16px;padding:18px;min-height:152px}.learning-path span{width:29px;height:29px;border-radius:9px;background:var(--ink);color:#fff;display:grid;place-items:center;font-size:11px;font-weight:900;margin-bottom:20px}.learning-path b,.learning-path small{display:block}.learning-path small{color:var(--muted);margin-top:5px;line-height:1.45}.learning-path a:hover{border-color:#a9c8f2}.panel{border:1px solid var(--line);border-radius:20px;background:#fff;padding:23px}.lab-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:18px;align-items:stretch}.control-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.control-head h3{margin:0}.control{padding:10px 0 17px}.control label{display:flex;justify-content:space-between;gap:20px;align-items:center;font-size:14px;font-weight:750;margin-bottom:12px}.control input[type=range],.score-controls input[type=range]{width:100%;accent-color:var(--blue)}.toggle-row{display:flex;justify-content:space-between;align-items:center;gap:20px;border-top:1px solid var(--line);padding:14px 0;cursor:pointer}.toggle-row b,.toggle-row small{display:block}.toggle-row b{font-size:14px}.toggle-row small{font-size:12px;color:var(--muted);margin-top:2px}.switch{position:relative;width:44px;height:25px;flex:0 0 auto}.switch input{position:absolute;opacity:0}.slider{position:absolute;inset:0;background:#cbd5df;border-radius:999px;transition:.2s}.slider:after{content:"";position:absolute;width:19px;height:19px;left:3px;top:3px;border-radius:50%;background:white;box-shadow:0 1px 5px #0002;transition:.2s}.switch input:checked+.slider{background:var(--blue)}.switch input:checked+.slider:after{transform:translateX(19px)}.lab-meta{font-size:12px;color:var(--muted);background:var(--soft);border-radius:10px;padding:10px 12px;margin-top:8px}.quiz-box{display:flex;flex-direction:column;min-height:390px}.quiz-topline{display:flex;justify-content:space-between;align-items:center;gap:15px;font-size:12px;color:var(--muted)}.progress{height:7px;background:#e9eef4;border-radius:999px;overflow:hidden;margin:12px 0 22px}.progress i{display:block;height:100%;background:var(--blue);border-radius:inherit}.quiz-q{font-size:25px;font-weight:850;letter-spacing:-.02em;margin-bottom:20px}.answers{display:grid;gap:9px}.answer{padding:13px 14px;text-align:left;border:1px solid var(--line);border-radius:11px;background:#fff;color:var(--ink);font-weight:650}.answer:hover{border-color:#9ec1ef;background:#f8fbff}.answer.correct{border-color:#8bc5ae;background:var(--green-soft)}.answer.wrong{border-color:#dfaaa7;background:#fff4f3}.answer.disabled{cursor:default}.feedback{display:none;margin-top:13px;padding:12px 14px;border-radius:11px;background:var(--green-soft);color:#2c624f;font-size:14px}.feedback.show{display:block}.scoreline{display:flex;justify-content:space-between;margin-top:auto;padding-top:18px;font-size:13px;color:var(--muted);font-weight:750}.dark-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:75px;align-items:center}.dark-grid h2{margin-bottom:18px}.dark-grid p{font-size:18px}.principle-list{display:grid;gap:10px}.principle-list>div{display:grid;grid-template-columns:42px 1fr;gap:14px;padding:17px;border:1px solid #29405e;border-radius:14px;background:#10233d}.principle-list span{width:32px;height:32px;border-radius:9px;background:#1b385d;color:#a8d0ff;display:grid;place-items:center;font-size:11px;font-weight:900}.principle-list p{font-size:14px;margin:0;color:#c8d4e2}
.site-footer{background:#091728;color:#bac8d8;padding:55px 0 25px}.footer-top{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:42px}.footer-brand p{max-width:360px;color:#8fa2b7;font-size:14px;margin-top:18px}.footer-logo{color:#fff}.footer-logo .brand-mark{background:#fff;color:var(--navy)}.site-footer h4{color:#fff;font-size:13px;margin:4px 0 15px}.site-footer>div>div:not(.footer-brand) a{display:block;color:#aab9ca;font-size:14px;padding:4px 0}.site-footer a:hover{color:#fff}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #1b2a3d;margin-top:38px;padding-top:20px;color:#71859c;font-size:12px}
.breadcrumbs{display:flex;align-items:center;gap:8px;font-size:12px;color:#8090a3;margin-bottom:28px}.breadcrumbs a:hover{color:var(--blue)}.page-hero,.article-hero{background:linear-gradient(180deg,#f6f9fd 0,#fff 100%);border-bottom:1px solid var(--line)}.hub-hero{padding:55px 0 58px}.hub-hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:70px;align-items:end}.hub-hero h1{margin:0 0 20px;font-size:clamp(42px,5vw,64px)}.hub-hero p{font-size:19px;max-width:740px;color:#52667f}.hero-summary{border:1px solid var(--line);border-radius:18px;background:#fff;padding:20px;box-shadow:0 10px 30px rgba(25,42,67,.04)}.hero-summary>span{display:block;font-size:11px;text-transform:uppercase;letter-spacing:.1em;font-weight:850;color:var(--muted);margin-bottom:13px}.hero-summary ol{padding-left:19px;margin:0}.hero-summary li{padding:5px 0;color:var(--ink-2);font-size:14px}.hero-summary p{font-size:14px;margin:8px 0}.flow-strip{display:flex;align-items:center;justify-content:center;gap:14px;overflow:auto}.flow-strip>div{display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:12px;background:#fff;padding:10px 14px;white-space:nowrap}.flow-strip>div span{font-size:10px;color:var(--blue);font-weight:900}.flow-strip .icon-svg{width:16px;color:#a3b2c2}.matrix-wrap{border:1px solid var(--line);border-radius:18px;overflow:auto;background:#fff}.matrix{width:100%;border-collapse:collapse;min-width:760px}.matrix th,.matrix td{text-align:left;padding:16px 18px;border-bottom:1px solid var(--line);vertical-align:top}.matrix th{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);background:#f8fafc}.matrix td{font-size:14px;color:var(--ink-2)}.matrix tr:last-child td{border-bottom:0}.callout{display:grid;grid-template-columns:auto 1fr auto;gap:18px;align-items:center;padding:24px;border:1px solid var(--line);border-radius:18px;background:#fff}.callout-icon{width:44px;height:44px;border-radius:12px;background:var(--soft-blue);color:var(--blue);display:grid;place-items:center}.callout h3{margin:0 0 5px}.callout p{margin:0;color:var(--muted)}.term-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.term-grid>div{padding:20px;border:1px solid var(--line);border-radius:16px;background:#fff}.term-grid span{font-size:11px;text-transform:uppercase;letter-spacing:.1em;color:var(--blue);font-weight:850}.term-grid h3{margin:12px 0 8px}.term-grid p{margin:0;font-size:14px;color:var(--muted)}
.picker-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:28px;align-items:start}.picker-steps{display:grid;gap:16px}.picker-step{border:1px solid var(--line);border-radius:18px;padding:18px;margin:0;display:grid;grid-template-columns:repeat(2,1fr);gap:9px}.picker-step:first-child{grid-template-columns:repeat(3,1fr)}.picker-step legend{width:100%;font-size:17px;font-weight:850;padding:0 0 12px}.picker-step legend span{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:8px;background:var(--ink);color:#fff;font-size:11px;margin-right:8px}.choice{border:1px solid var(--line);background:#fff;border-radius:12px;padding:13px;text-align:left;min-height:82px;color:var(--ink)}.choice b,.choice small{display:block}.choice small{font-size:12px;color:var(--muted);margin-top:3px}.choice:hover{border-color:#a8c3e5}.choice.selected{border-color:var(--blue);box-shadow:inset 0 0 0 1px var(--blue);background:var(--soft-blue)}.result-sticky{position:sticky;top:96px;border:1px solid var(--line);border-radius:20px;padding:22px;background:#fff;box-shadow:var(--shadow)}.chip{display:inline-flex;align-items:center;border-radius:999px;padding:5px 9px;font-size:11px;font-weight:850}.chip.amber{background:var(--amber-soft);color:var(--amber)}.chip.blue{background:var(--soft-blue);color:var(--blue)}.type-result{padding:20px 0}.type-result h3{font-size:28px;margin:5px 0 8px}.type-result p{margin:0;color:var(--muted)}.type-result a{display:inline-flex;margin-top:16px;color:var(--blue);font-weight:800;font-size:14px}.result-help{border-top:1px solid var(--line);padding-top:16px}.result-help p{font-size:13px;color:var(--muted);margin:5px 0 0}
.article-hero{padding:46px 0 48px}.article-hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 390px;gap:65px;align-items:end}.article-hero h1{font-size:clamp(40px,5.3vw,64px);margin:0 0 18px}.article-hero p{font-size:19px;max-width:760px;color:#53667d}.article-meta{display:flex;gap:18px;flex-wrap:wrap;margin-top:24px;font-size:12px;color:var(--muted);font-weight:750}.article-meta span{display:flex;align-items:center;gap:6px}.article-meta .icon-svg{width:16px}.hero-key{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px}.hero-key>span{font-size:11px;text-transform:uppercase;letter-spacing:.1em;font-weight:850;color:var(--blue)}.hero-key ul{list-style:none;padding:0;margin:12px 0 0;display:grid;gap:11px}.hero-key li{display:grid;grid-template-columns:18px 1fr;gap:8px;font-size:13px;color:var(--ink-2)}.hero-key .icon-svg{width:17px;color:var(--green);margin-top:2px}.article-layout{display:grid;grid-template-columns:minmax(0,760px) 280px;gap:76px;padding-top:54px;padding-bottom:90px;justify-content:center}.article-body{min-width:0}.article-body>section:first-child{margin-top:0}.article-section{margin:0 0 48px}.article-section h2{font-size:32px;margin:0 0 16px;scroll-margin-top:100px}.article-section p{font-size:17px;line-height:1.78;color:#354a63;margin:0 0 16px}.article-side{min-width:0}.side-card{border:1px solid var(--line);border-radius:16px;padding:17px;background:#fff;margin-bottom:14px}.toc-card{position:sticky;top:93px}.side-card>span{display:block;font-size:11px;text-transform:uppercase;letter-spacing:.09em;font-weight:850;color:var(--muted);margin-bottom:10px}.toc-card a,.mobile-toc a{display:flex;gap:9px;padding:7px 0;font-size:13px;font-weight:700;color:#50647a}.toc-card a:hover,.mobile-toc a:hover{color:var(--blue)}.toc-card a span,.mobile-toc a span{color:#9aabba;font-size:10px;padding-top:2px}.principle{margin-top:16px}.principle p{font-size:13px;color:var(--muted);margin:0 0 8px}.mobile-toc{display:none;border:1px solid var(--line);border-radius:14px;padding:15px;margin-bottom:34px}.mobile-toc b{font-size:13px;display:block;margin-bottom:7px}.practice-block{display:grid;grid-template-columns:48px 1fr;gap:18px;background:var(--soft-blue);border:1px solid #d8e8fc;border-radius:20px;padding:23px;margin:58px 0}.practice-icon{width:44px;height:44px;border-radius:12px;background:#fff;color:var(--blue);display:grid;place-items:center}.practice-block span{font-size:11px;text-transform:uppercase;letter-spacing:.1em;font-weight:850;color:var(--blue)}.practice-block h2{font-size:25px;margin:6px 0 8px}.practice-block p{margin:0;color:#425a76}.checklist{margin:60px 0}.checklist-head{display:flex;justify-content:space-between;gap:28px;align-items:end;margin-bottom:20px}.checklist-head h2{font-size:32px;margin:0}.checklist-head>p{max-width:330px;margin:0;color:var(--muted);font-size:14px}.checklist ul{list-style:none;padding:0;margin:0;border:1px solid var(--line);border-radius:16px;overflow:hidden}.checklist li{display:flex;align-items:flex-start;gap:12px;padding:14px 16px;border-bottom:1px solid var(--line);color:var(--ink-2)}.checklist li:last-child{border:0}.check-box{width:18px;height:18px;border:1.5px solid #a8b6c6;border-radius:5px;margin-top:3px;flex:0 0 auto}.next-section{border-top:1px solid var(--line);padding-top:42px;margin-top:55px}.next-section h2{font-size:30px;margin-bottom:18px}.next-links{display:grid;gap:8px}.next-links a{display:flex;justify-content:space-between;align-items:center;border:1px solid var(--line);border-radius:12px;padding:13px 14px;font-size:14px;font-weight:750}.next-links a:hover{border-color:#aac5e6;color:var(--blue)}.next-links .icon-svg{width:16px}
.article-demo{border:1px solid var(--line);border-radius:20px;background:#fff;padding:22px;margin:0 0 52px;box-shadow:0 10px 30px rgba(25,42,67,.035)}.demo-head h2{font-size:27px;margin:10px 0 7px}.demo-head p{font-size:14px!important;color:var(--muted)!important;margin-bottom:20px!important}.score-demo{display:grid;grid-template-columns:1fr .65fr;gap:18px}.score-controls{display:grid;gap:12px}.score-controls label{font-size:13px;font-weight:750}.score-controls label>output{float:right;color:var(--blue)}.score-controls input[type=range]{display:block;margin-top:7px}.check-row{display:flex;gap:8px;align-items:center}.score-preview{background:var(--navy);color:#fff;border-radius:16px;padding:20px;display:flex;flex-direction:column;justify-content:center}.score-preview>span{font-size:11px;text-transform:uppercase;letter-spacing:.1em;color:#89a0ba}.score-preview strong{display:block;font-size:29px;margin:7px 0}.score-preview p{color:#b8c6d6!important;font-size:13px!important;margin:0!important}.formula{margin-top:16px;border-top:1px solid #29405c;padding-top:12px;color:#91bffa;font-size:12px}.timer-demo{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:center}.timer-demo label{display:block;font-size:13px;font-weight:800;margin-bottom:6px}.select{width:100%;height:44px;border:1px solid var(--line);border-radius:11px;padding:0 10px;background:#fff;margin-bottom:10px}.timer-demo .btn{width:100%}.timer-face{min-height:190px;background:var(--navy);border-radius:16px;color:#fff;display:grid;place-items:center;align-content:center}.timer-face span,.timer-face small{color:#94a8bf;font-size:12px;text-transform:uppercase;letter-spacing:.08em}.timer-face strong{font-size:74px;line-height:1;margin:5px}.tf-row{display:flex;gap:9px}.tf-row .btn{flex:1}.inline-note{margin-top:12px;padding:12px 13px;border-radius:11px;background:var(--soft);color:var(--muted);font-size:13px}.inline-note.good{background:var(--green-soft);color:#275e4a}.inline-note.warn{background:var(--amber-soft);color:#76500f}
.search-modal[hidden]{display:none}.search-modal{position:fixed;inset:0;background:rgba(7,17,31,.72);z-index:100;padding:86px 18px;display:flex;justify-content:center;align-items:flex-start}.search-shell{width:min(700px,100%);background:#fff;border-radius:19px;box-shadow:0 30px 80px rgba(0,0,0,.22);overflow:hidden}.search-field{display:flex;align-items:center;gap:10px;padding:15px 16px;border-bottom:1px solid var(--line)}.search-field .icon-svg{color:var(--muted)}.search-field input{flex:1;border:0;outline:0;font-size:17px;min-width:0}.search-close{border:0;background:var(--soft);width:32px;height:32px;border-radius:9px;color:var(--muted);font-size:20px}.search-hint{display:flex;justify-content:space-between;padding:9px 16px;border-bottom:1px solid var(--line);font-size:11px;color:var(--muted)}.kbd{border:1px solid var(--line-strong);background:#fff;border-radius:5px;padding:1px 5px}.search-results{max-height:55vh;overflow:auto;padding:7px}.search-results a{display:block;padding:10px;border-radius:10px}.search-results a:hover,.search-results a.active{background:var(--soft)}.search-results b{display:block;font-size:14px}.search-results small{display:block;color:var(--muted);font-size:12px;margin-top:2px}.search-empty{padding:20px;color:var(--muted);text-align:center;font-size:14px}
@media(max-width:1000px){.grid-4{grid-template-columns:repeat(2,1fr)}.hero-layout,.hub-hero-grid,.article-hero-grid,.dark-grid{grid-template-columns:1fr;gap:34px}.article-hero-grid{align-items:start}.hero-key{max-width:700px}.article-layout{grid-template-columns:minmax(0,1fr);max-width:800px}.article-side{display:none}.mobile-toc{display:block}.learning-path{grid-template-columns:repeat(2,1fr)}.footer-top{grid-template-columns:1.4fr 1fr 1fr}.footer-top>div:last-child{display:none}.term-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:820px){.navbar{height:66px}.navlinks{display:none;position:absolute;top:66px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:12px 20px 18px;box-shadow:0 18px 34px rgba(25,42,67,.08)}.navlinks.open{display:grid}.nav-link{padding:11px 10px}.menu-btn{display:grid}.lab-grid,.picker-grid,.score-demo,.timer-demo{grid-template-columns:1fr}.picker-step:first-child,.picker-step{grid-template-columns:1fr}.result-sticky{position:static}.callout{grid-template-columns:auto 1fr}.callout .btn{grid-column:1/-1}.footer-top{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.footer-bottom{flex-direction:column}.section-head,.split-head,.checklist-head{align-items:flex-start;flex-direction:column;gap:10px}.split-head>p,.checklist-head>p{max-width:none}.flow-strip{justify-content:flex-start}.home-hero{padding-top:50px}}
@media(max-width:560px){.container{width:min(var(--max),calc(100% - 24px))}.brand-name{display:none}h1{font-size:42px}.home-hero{padding:38px 0 46px}.hero-lead,.hub-hero p,.article-hero p{font-size:17px}.hero-facts{gap:14px;flex-wrap:wrap}.section{padding:56px 0}.grid-4,.grid-2,.learning-path,.term-grid{grid-template-columns:1fr}.feature-card{min-height:220px}.hero-actions{flex-direction:column}.hero-actions .btn{width:100%}.article-hero{padding:34px 0 38px}.article-layout{padding-top:32px;padding-bottom:60px}.article-section h2{font-size:28px}.article-section p{font-size:16px}.practice-block{grid-template-columns:1fr}.footer-top{grid-template-columns:1fr}.footer-brand{grid-column:auto}.footer-bottom span:last-child{display:none}.quiz-q{font-size:21px}.section-head h2,.split-head h2{font-size:31px}.tf-row{flex-direction:column}.search-modal{padding-top:70px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}


/* Intent-complete editorial layer */
.skip-link{position:fixed;left:16px;top:12px;z-index:9999;padding:10px 14px;background:#0b2a4a;color:#fff;border-radius:8px;transform:translateY(-160%);transition:transform .15s ease;font-weight:700}
.skip-link:focus{transform:translateY(0)}
.nav-link[aria-current="page"]{color:#0d5fc7;font-weight:750;position:relative}
.nav-link[aria-current="page"]::after{content:"";position:absolute;left:0;right:0;bottom:-9px;height:2px;background:#1668dc;border-radius:2px}
.intent-summary{display:grid;gap:20px}.intent-summary>div:first-child{max-width:800px}.intent-summary h2{margin:.35rem 0 0}
.decision-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:18px 0}.decision-card{padding:18px;border-radius:14px;border:1px solid var(--line);background:#fff}.decision-card span{display:block;font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;font-weight:800;margin-bottom:8px}.decision-card p{margin:0}.decision-card.good{border-color:#b9dfc7;background:#f4fbf6}.decision-card.good span{color:#237646}.decision-card.caution{border-color:#eed9a5;background:#fffaf0}.decision-card.caution span{color:#8a5a00}
.example-box{border-left:4px solid #1668dc;background:#f5f9ff;padding:16px 18px;border-radius:0 12px 12px 0}.example-box p{margin:0}.worked-example{padding-top:0}
.source-block{margin:42px 0 24px;padding:26px;border:1px solid var(--line);border-radius:18px;background:#fbfcfe}.source-head{display:grid;grid-template-columns:1.4fr 1fr;gap:24px;align-items:end}.source-head h2{margin:.3rem 0 0}.source-head>p{margin:0;color:var(--muted)}.source-block ol{margin:22px 0 0;padding-left:22px;display:grid;gap:14px}.source-block li{padding-left:5px}.source-block li a{font-weight:750;color:#0d5fc7}.source-block li p{margin:4px 0 0;color:var(--muted);font-size:.92rem}.source-meta{margin-top:18px;padding-top:14px;border-top:1px solid var(--line);font-size:.84rem;color:var(--muted)}
.editorial-meta-extra{white-space:nowrap}.editorial-footnote{max-width:1180px;margin:0 auto;padding:14px 24px 24px;color:var(--muted);font-size:.82rem}
.sandbox-clock{font-variant-numeric:tabular-nums;font-weight:800}.sandbox-clock.danger{color:#b3261e}.leaderboard-mini{display:grid;gap:6px;margin-top:12px}.leaderboard-mini div{display:flex;justify-content:space-between;padding:7px 9px;border-radius:8px;background:#f5f7fa;font-size:.86rem}.leaderboard-mini .me{background:#eaf3ff;font-weight:750}
.type-result .fit-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:14px 0}.type-result .fit-grid span{display:block;padding:10px;border-radius:9px;background:#f5f7fa;font-size:.86rem}.type-result .why{padding:10px 12px;border-left:3px solid #1668dc;background:#f5f9ff;margin:12px 0}
@media(max-width:760px){.decision-grid,.source-head,.type-result .fit-grid{grid-template-columns:1fr}.nav-link[aria-current="page"]::after{display:none}.source-block{padding:20px}}


/* Production polish v2 */
:root{--violet:#6557d9;--red:#b42318;--cyan:#087ea4;--chart-1:#1668dc;--chart-2:#15735a;--chart-3:#a46100;--surface-elevated:#ffffff;--shadow-soft:0 18px 55px rgba(17,36,61,.09)}
body:before{content:"";position:fixed;inset:0 0 auto;height:3px;background:#e8eef5;z-index:90;pointer-events:none}
.reading-progress{position:fixed;left:0;right:0;top:0;height:3px;z-index:91;pointer-events:none}.reading-progress__bar{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--blue),var(--violet));transform-origin:left center;transition:width .08s linear}
.site-header{box-shadow:0 1px 0 rgba(19,35,58,.025)}
.feature-card,.panel,.article-demo,.source-block{box-shadow:0 8px 30px rgba(17,36,61,.035)}
.article-body{counter-reset:visual}
.learning-visual{margin:56px 0;padding:28px;border:1px solid var(--line);border-radius:22px;background:linear-gradient(145deg,#fbfdff,#f5f8fc);overflow:hidden;position:relative}.learning-visual:before{counter-increment:visual;content:"MODEL " counter(visual,decimal-leading-zero);position:absolute;right:20px;top:18px;font-size:10px;font-weight:900;letter-spacing:.13em;color:#9aabc0}.visual-section-head{display:flex;justify-content:space-between;gap:20px;margin-bottom:23px;padding-right:90px}.visual-section-head h2{font-size:30px;margin:.35rem 0 0}.visual-note{margin-top:18px;padding:14px 16px;border:1px solid #cfe0f5;border-radius:12px;background:#f3f8ff;color:#35506e;font-size:14px}.visual-caption{margin:14px 0 0!important;font-size:12px!important;color:var(--muted)!important}.visual-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:18px}.visual-grid-3>div{padding:15px;border:1px solid var(--line);border-radius:14px;background:#fff}.visual-grid-3 b{font-size:14px}.visual-grid-3 p{font-size:13px!important;margin:5px 0 0!important;color:var(--muted)!important}
.mechanics-map{display:grid;grid-template-columns:1fr auto 1fr auto 1fr auto 1fr auto 1fr;align-items:center;gap:8px}.map-node{padding:16px 13px;border:1px solid var(--line);border-radius:14px;background:#fff;min-height:112px}.map-node.primary{border-color:#b7d2f4;background:#f4f8ff}.map-node.accent{border-color:#b9dfc7;background:#f3fbf6}.map-node span{font-size:10px;font-weight:900;color:var(--blue)}.map-node b,.map-node small{display:block}.map-node b{margin-top:12px}.map-node small{margin-top:3px;color:var(--muted);font-size:11px}.map-arrow{color:#9aabc0;font-weight:900}
.format-spectrum{padding:10px 8px 34px}.spectrum-axis{display:flex;justify-content:space-between;font-size:11px;font-weight:800;color:var(--muted);margin-bottom:9px}.spectrum-track{height:12px;border-radius:999px;background:linear-gradient(90deg,#fde8d8,#eaf3ff,#e4f5eb);position:relative}.spectrum-track:after{content:"";position:absolute;left:0;right:0;top:50%;height:2px;background:#6f8299;opacity:.4}.spectrum-track i{position:absolute;top:50%;width:14px;height:14px;border-radius:50%;background:#fff;border:3px solid var(--blue);transform:translate(-50%,-50%);z-index:2}.spectrum-labels{position:relative;height:34px}.spectrum-labels span{position:absolute;top:9px;transform:translateX(-10%);font-size:11px;font-weight:800;white-space:nowrap}
.model-toolbar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}.model-chip{border:1px solid var(--line);background:#fff;border-radius:999px;padding:9px 13px;color:var(--ink-2);font-weight:800;font-size:12px}.model-chip.selected{background:var(--ink);border-color:var(--ink);color:#fff}.profile-chart{display:grid;gap:14px}.profile-row{display:grid;grid-template-columns:160px 1fr 58px;align-items:center;gap:12px}.profile-row>span{font-size:13px;font-weight:750}.profile-bar{height:22px;background:#e8eef5;border-radius:8px;overflow:hidden}.profile-bar i{display:block;height:100%;width:var(--score);background:linear-gradient(90deg,var(--blue),#6da8f3);border-radius:inherit;transition:width .3s ease}.profile-row.winner .profile-bar i{background:linear-gradient(90deg,var(--green),#5ab58f)}.profile-row output{text-align:right;font-weight:900;font-size:13px}
.pressure-lab>label,.calibrator-control label{display:flex;justify-content:space-between;font-size:14px;margin-bottom:10px}.pressure-lab input,.calibrator input,.mix-controls input{width:100%;accent-color:var(--blue)}.effect-bars{display:grid;gap:12px;margin-top:22px}.effect-bars>div{display:grid;grid-template-columns:190px 1fr 48px;align-items:center;gap:12px}.effect-bars span{font-size:12px;font-weight:750}.effect-bars i{display:block;height:10px;border-radius:999px;background:#e5ebf2;overflow:hidden}.effect-bars b{display:block;height:100%;border-radius:inherit;background:var(--blue);transition:width .2s}.effect-bars>div:nth-child(2) b{background:var(--amber)}.effect-bars>div:nth-child(3) b{background:var(--green)}.effect-bars output{text-align:right;font-size:11px;font-weight:900}
.calibrator{display:grid;grid-template-columns:1fr .75fr;gap:22px;align-items:center}.calibrator-result{padding:20px;border-radius:16px;background:var(--navy);color:#fff}.calibrator-result span{font-size:10px;text-transform:uppercase;letter-spacing:.1em;color:#91a5bc}.calibrator-result strong{display:block;font-size:24px;margin:8px 0}.calibrator-result p{color:#c0cedc!important;font-size:13px!important;margin:0!important}
.session-timeline{display:flex;gap:4px;align-items:stretch}.session-timeline>div{flex:var(--w);min-width:90px;padding:14px 10px;border-radius:11px;background:#eaf3ff;border:1px solid #c9def8}.session-timeline .break{background:#fff5df;border-color:#efd39c}.session-timeline .final{background:#edf8f3;border-color:#b9dfc7}.session-timeline b,.session-timeline small{display:block}.session-timeline b{font-size:12px}.session-timeline small{font-size:10px;color:var(--muted);margin-top:4px}
.feedback-compare{display:grid;grid-template-columns:1fr 1fr;gap:14px}.feedback-compare article{padding:19px;border:1px solid var(--line);border-radius:15px;background:#fff;position:relative}.feedback-compare article.recommended{border-color:#a9ccee;background:#f8fbff}.status-dot{position:absolute;width:9px;height:9px;border-radius:50%;background:#9cadbf;right:16px;top:16px}.recommended .status-dot{background:var(--blue)}.fake-answer{margin:14px 0 10px;padding:10px 12px;border-radius:9px;font-weight:850;font-size:13px}.fake-answer.good{background:var(--green-soft);color:#286047}.feedback-compare p{font-size:13px!important;margin:0!important;color:var(--muted)!important}
.rng-lab{display:grid;grid-template-columns:.7fr 1.3fr;gap:24px;align-items:center}.rng-bars{display:grid;gap:12px}.rng-bar{display:grid;grid-template-columns:90px 1fr 38px;gap:9px;align-items:center}.rng-bar span{font-size:12px;font-weight:800}.rng-bar i{height:16px;border-radius:6px;background:#e8edf3;overflow:hidden}.rng-bar b{display:block;height:100%;width:var(--w);background:var(--blue);transition:width .25s}.rng-bar.medium b{background:var(--green)}.rng-bar.hard b{background:var(--amber)}.rng-bar output{font-size:12px;font-weight:900;text-align:right}
.meta-feedback-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.meta-feedback-grid>div{padding:18px;border:1px solid var(--line);border-radius:15px;background:#fff;min-height:180px}.mini-kicker{display:block;font-size:10px;letter-spacing:.09em;text-transform:uppercase;font-weight:900;color:var(--muted);margin-bottom:18px}.mini-progress{height:8px;border-radius:999px;background:#e7edf3;overflow:hidden;margin:16px 0 9px}.mini-progress i{display:block;height:100%;background:var(--blue)}.meta-feedback-grid small{display:block;color:var(--muted);font-size:11px;margin-top:10px}.streak-number{display:block;font-size:52px;line-height:1;color:var(--amber)}.mini-rank{margin:0;padding:0;list-style:none;display:grid;gap:6px}.mini-rank li{display:flex;justify-content:space-between;padding:7px 9px;background:var(--soft);border-radius:8px;font-size:12px}.mini-rank li.me{background:var(--soft-blue);color:var(--blue)}
.genre-map{height:360px;border:1px solid var(--line);border-radius:18px;background:linear-gradient(#0000 49.5%,#dfe6ee 50%,#0000 50.5%),linear-gradient(90deg,#0000 49.5%,#dfe6ee 50%,#0000 50.5%),linear-gradient(145deg,#fff,#f7f9fc);position:relative;margin:10px 0 0}.axis-y,.axis-x{position:absolute;font-size:10px;text-transform:uppercase;letter-spacing:.08em;font-weight:900;color:var(--muted)}.axis-y.top{top:12px;left:50%;transform:translateX(-50%)}.axis-y.bottom{bottom:12px;left:50%;transform:translateX(-50%)}.axis-x.left{left:12px;top:50%;transform:translateY(-50%) rotate(-90deg)}.axis-x.right{right:12px;top:50%;transform:translateY(-50%) rotate(90deg)}.genre-point{position:absolute;left:var(--x);top:var(--y);transform:translate(-50%,-50%);width:16px;height:16px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 5px #1668dc24}.genre-point b{position:absolute;left:15px;top:-8px;white-space:nowrap;background:#fff;border:1px solid var(--line);padding:5px 7px;border-radius:7px;font-size:10px;font-style:normal;box-shadow:0 5px 15px #0000000a}.genre-point.accent{background:var(--green);box-shadow:0 0 0 5px #15735a24}.genre-point.warn{background:var(--amber);box-shadow:0 0 0 5px #a4610024}
.card-anatomy{display:grid;grid-template-columns:240px 60px 1fr;gap:18px;align-items:center}.demo-card{height:290px;border-radius:18px;border:1px solid #c8d5e4;background:linear-gradient(150deg,#fff,#edf5ff);padding:18px;box-shadow:0 20px 40px rgba(23,53,88,.1);display:flex;flex-direction:column}.demo-card span{font-size:9px;letter-spacing:.12em;font-weight:900;color:var(--blue)}.demo-card b{font-size:21px;margin:auto 0}.demo-card small{color:var(--muted)}.role-arrow{text-align:center;font-size:28px;color:#90a2b5}.role-list{display:grid;gap:12px}.role-list>div{padding:15px;border:1px solid var(--line);border-radius:13px;background:#fff}.role-list p{font-size:13px!important;margin:4px 0 0!important;color:var(--muted)!important}
.state-flow{display:flex;align-items:stretch;gap:7px}.state-flow>div{flex:1;min-width:100px;padding:15px 10px;border:1px solid var(--line);border-radius:12px;background:#fff}.state-flow>i{align-self:center;color:#93a4b7;font-style:normal}.state-flow span{display:block;font-size:10px;color:var(--blue);font-weight:900}.state-flow b{display:block;font-size:12px;margin-top:4px}.state-flow .core{background:#f3f8ff;border-color:#bad4f4}.state-flow .reward{background:#f1faf5;border-color:#b9dfc7}.compact-flow{margin-top:18px}.compact-flow>div{padding:12px}
.system-architecture{text-align:center}.arch-node{width:min(420px,100%);margin:auto;padding:16px;border:1px solid var(--line);border-radius:14px;background:#fff}.arch-node.server{background:var(--navy);color:#fff}.arch-node span{display:block;font-size:9px;letter-spacing:.1em;color:var(--muted);font-weight:900}.arch-node.server span{color:#93a8c0}.arch-line{width:2px;height:25px;background:#bdcad8;margin:auto}.arch-line.split{height:32px}.arch-children{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.arch-children>div{padding:14px;border:1px solid var(--line);border-radius:12px;background:#fff}.arch-children b,.arch-children small{display:block}.arch-children small{color:var(--muted);font-size:11px;margin-top:4px}
.mix-lab{display:grid;grid-template-columns:.8fr 1.2fr;gap:26px;align-items:center}.mix-controls{display:grid;gap:12px}.mix-controls label{font-size:12px;font-weight:800}.mix-controls input{display:block;margin-top:6px}.mix-stack{height:58px;border-radius:13px;overflow:hidden;display:flex;background:#e8edf3}.mix-stack i{height:100%;transition:width .2s}.mix-stack .knowledge{background:var(--blue)}.mix-stack .execution{background:var(--green)}.mix-stack .chance{background:var(--amber)}.mix-legend{display:flex;gap:13px;flex-wrap:wrap;margin-top:12px}.mix-legend span{font-size:11px;font-weight:750}.mix-legend i{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:4px}.mix-legend .knowledge{background:var(--blue)}.mix-legend .execution{background:var(--green)}.mix-legend .chance{background:var(--amber)}
.legal-triage{display:grid;grid-template-columns:1fr 1fr;gap:20px}.triage-checks{display:grid;gap:8px}.triage-checks label{display:flex;gap:9px;align-items:flex-start;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:13px}.triage-checks input{accent-color:var(--blue);margin-top:3px}.triage-result{padding:20px;border-radius:15px;background:var(--navy);color:#fff}.triage-result span{font-size:9px;text-transform:uppercase;letter-spacing:.1em;color:#93a8c0}.triage-result b{display:block;font-size:21px;margin:8px 0}.triage-result p{margin:0!important;color:#c4d0dd!important;font-size:13px!important}.triage-result.warn{background:#6b4300}.triage-result.high{background:#70241e}
.dual-loop{display:grid;grid-template-columns:1fr 1fr;gap:12px}.dual-loop>div{padding:16px;border:1px solid var(--line);border-radius:14px;background:#fff}.dual-loop>div>span{font-size:10px;letter-spacing:.09em;text-transform:uppercase;font-weight:900;color:var(--muted)}.loop-row{display:flex;align-items:center;gap:6px;margin-top:14px;flex-wrap:wrap}.loop-row b{font-size:11px;padding:7px 9px;border-radius:8px;background:var(--soft-blue)}.loop-row i{font-style:normal;color:#94a5b6}
.component-map{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.component-map>div{padding:16px;border:1px solid var(--line);border-radius:14px;background:#fff}.component-map span{font-size:9px;text-transform:uppercase;letter-spacing:.09em;font-weight:900;color:var(--blue)}.component-map b,.component-map small{display:block}.component-map b{font-size:14px;margin:10px 0 4px}.component-map small{font-size:11px;color:var(--muted)}
.dimension-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.dimension-grid>div{padding:20px;border:1px solid var(--line);border-radius:15px;background:#fff}.dimension-grid span{font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--blue);font-weight:900}.dimension-grid b,.dimension-grid small{display:block}.dimension-grid b{font-size:16px;margin:14px 0 5px}.dimension-grid small{font-size:11px;color:var(--muted)}
.online-flow{display:flex;align-items:stretch;gap:6px}.online-flow>i{align-self:center;font-style:normal;color:#9bacbd}.of-node{flex:1;padding:14px 9px;border:1px solid var(--line);border-radius:12px;background:#fff}.of-node.final{background:#f1faf5;border-color:#b9dfc7}.of-node span{font-size:9px;color:var(--blue);font-weight:900}.of-node b,.of-node small{display:block}.of-node b{font-size:12px;margin:5px 0}.of-node small{font-size:9px;color:var(--muted)}.failure-strip{margin-top:14px;display:flex;gap:8px;flex-wrap:wrap;align-items:center}.failure-strip b{font-size:11px}.failure-strip span{padding:6px 8px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:10px}
.live-timeline{display:grid;grid-template-columns:1fr 2fr .7fr 1fr 1fr;gap:5px}.live-timeline>div{padding:15px 10px;border-radius:11px;background:#fff;border:1px solid var(--line)}.live-timeline .lock{background:#fff5df;border-color:#efd39c}.live-timeline .reveal{background:#edf8f3;border-color:#b9dfc7}.live-timeline b,.live-timeline small{display:block}.live-timeline b{font-size:11px}.live-timeline small{font-size:9px;color:var(--muted);margin-top:4px}
.pub-timeline{display:grid;grid-template-columns:repeat(6,1fr);gap:5px}.pub-timeline>div{padding:13px 10px;border-radius:11px;background:#fff;border:1px solid var(--line)}.pub-timeline .break{background:#fff7e8}.pub-timeline .final{background:#f0faf4}.pub-timeline span{font-size:9px;color:var(--blue);font-weight:900}.pub-timeline b,.pub-timeline small{display:block}.pub-timeline b{font-size:11px;margin:5px 0}.pub-timeline small{font-size:9px;color:var(--muted)}
.music-matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.music-matrix>div{padding:16px;border:1px solid var(--line);border-radius:13px;background:#fff}.music-matrix span{font-size:9px;text-transform:uppercase;letter-spacing:.08em;color:var(--violet);font-weight:900}.music-matrix b,.music-matrix small{display:block}.music-matrix b{margin:10px 0 4px;font-size:14px}.music-matrix small{font-size:10px;color:var(--muted)}
.visual-question-demo{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:center}.mock-image{height:250px;border-radius:16px;background:linear-gradient(145deg,#dbe9f7,#f6e6c9);position:relative;overflow:hidden;border:1px solid #c8d6e5}.shape{position:absolute;border-radius:40% 60% 55% 45%;background:#769ac1;opacity:.8}.shape.one{width:160px;height:120px;left:45px;top:55px;transform:rotate(-12deg)}.shape.two{width:120px;height:150px;right:55px;bottom:22px;background:#d59b5d;transform:rotate(18deg)}.hotspot{position:absolute;left:53%;top:43%;width:36px;height:36px;border-radius:50%;border:3px solid #fff;background:var(--blue);color:#fff;font-size:20px;box-shadow:0 5px 14px #0004}.visual-question-demo p{font-size:13px!important;color:var(--muted)!important}
.probability-demo{display:grid;grid-template-columns:160px 1fr;gap:25px;align-items:center}.prob-ring{width:150px;height:150px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--blue) 0 50%,#e5ebf2 50% 100%);position:relative}.prob-ring:after{content:"";position:absolute;inset:18px;background:#fff;border-radius:50%}.prob-ring span{position:relative;z-index:2;font-size:30px;font-weight:900}.probability-demo p{font-size:14px!important;margin:8px 0!important}.probability-demo small{color:var(--muted)}
.mcq-editor{display:grid;grid-template-columns:1fr 1fr;gap:14px}.mcq-version{padding:18px;border:1px solid var(--line);border-radius:15px;background:#fff}.mcq-version.bad{border-color:#ecc5c0}.mcq-version.good{border-color:#b9dfc7}.mcq-version>span{font-size:9px;text-transform:uppercase;letter-spacing:.09em;font-weight:900;color:var(--muted)}.mcq-version>b{display:block;margin:12px 0}.mcq-version button{display:block;width:100%;text-align:left;border:1px solid var(--line);background:var(--soft);padding:8px 9px;border-radius:8px;margin:6px 0;font-size:11px}.mcq-version small{display:block;color:var(--muted);font-size:10px;margin-top:10px}
@media(max-width:900px){.mechanics-map{grid-template-columns:1fr}.map-arrow{transform:rotate(90deg);text-align:center}.visual-grid-3,.meta-feedback-grid,.component-map,.dimension-grid,.music-matrix{grid-template-columns:repeat(2,1fr)}.calibrator,.rng-lab,.mix-lab,.legal-triage,.card-anatomy,.visual-question-demo{grid-template-columns:1fr}.role-arrow{transform:rotate(90deg)}.state-flow,.online-flow{overflow-x:auto;padding-bottom:8px}.state-flow>div,.of-node{min-width:125px}.pub-timeline{grid-template-columns:repeat(3,1fr)}.live-timeline{grid-template-columns:1fr 2fr 1fr}.live-timeline>div:nth-child(n+4){grid-column:auto}.dual-loop{grid-template-columns:1fr}}
@media(max-width:620px){.learning-visual{padding:20px;margin:42px 0}.visual-section-head{padding-right:40px}.visual-section-head h2{font-size:26px}.visual-grid-3,.meta-feedback-grid,.component-map,.dimension-grid,.music-matrix,.feedback-compare,.mcq-editor{grid-template-columns:1fr}.effect-bars>div{grid-template-columns:1fr}.effect-bars output{text-align:left}.profile-row{grid-template-columns:105px 1fr 42px}.session-timeline{overflow-x:auto}.session-timeline>div{min-width:110px}.genre-map{height:420px}.genre-point b{white-space:normal;width:105px}.arch-children{grid-template-columns:1fr}.pub-timeline{grid-template-columns:repeat(2,1fr)}.live-timeline{display:flex;overflow-x:auto}.live-timeline>div{min-width:120px}.probability-demo{grid-template-columns:1fr}.prob-ring{margin:auto}}
main > .learning-visual{width:min(var(--max),calc(100% - 40px));margin:56px auto}.learning-visual button:focus-visible,.learning-visual input:focus-visible{outline:3px solid var(--blue);outline-offset:3px}@media(max-width:560px){main > .learning-visual{width:calc(100% - 24px);margin:42px auto}}