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button{color:var(--ink-2);text-align:left;cursor:pointer;border-radius:8px;align-items:center;gap:8px;width:100%;padding:8px 10px;font-size:13px;display:flex}[data-aicert] .wsw-foot button:hover{background:var(--bg-elev);color:var(--ink)}[data-aicert] .bc{color:var(--ink-3);border-left:1px solid var(--line);align-items:center;gap:6px;height:30px;margin-left:6px;padding-left:12px;font-size:13px;display:flex}[data-aicert] .bc a{color:var(--ink-2);cursor:pointer}[data-aicert] .bc a:hover{color:var(--ink)}[data-aicert] .bc .sep{color:var(--ink-4);font-size:11px}[data-aicert] .bc .now{color:var(--ink);font-weight:500}[data-aicert] .app{flex-direction:column;min-height:100vh;display:flex}[data-aicert] .tb{z-index:50;background:var(--bg);border-bottom:1px solid var(--line);position:sticky;top:0}[data-aicert] .tb-in{align-items:center;gap:24px;max-width:1440px;margin:0 auto;padding:14px 28px;display:flex}[data-aicert] .tb.landing .tb-in{padding:24px 32px}[data-aicert] .brand{letter-spacing:-.02em;align-items:center;gap:10px;font-size:19px;font-weight:600;display:inline-flex}[data-aicert] .brand.sm{gap:8px;font-size:16px}[data-aicert] .topnav{flex:1;gap:28px;margin-left:36px;display:flex}[data-aicert] .topnav a{color:var(--ink-2);cursor:pointer;font-size:14px}[data-aicert] .topnav a:hover{color:var(--ink)}[data-aicert] .tba{align-items:center;gap:10px;margin-left:auto;display:flex}[data-aicert] .search{background:var(--paper);border:1px solid var(--line);max-width:460px;color:var(--ink-3);border-radius:999px;flex:1;align-items:center;gap:8px;margin:0 auto;padding:7px 14px;display:flex}[data-aicert] .search input{color:var(--ink);background:0 0;border:none;outline:none;flex:1;font-size:13px}[data-aicert] .streak{color:var(--ink-2);background:var(--clay-wash);border-radius:999px;align-items:center;gap:6px;padding:6px 12px;font-size:13px;display:inline-flex}[data-aicert] .streak svg{color:var(--clay)}[data-aicert] .av{background:var(--plum);color:#fff;border-radius:50%;place-items:center;width:32px;height:32px;font-size:12px;font-weight:600;display:grid}[data-aicert] .body{flex:1;width:100%;max-width:1440px;margin:0 auto;display:flex}[data-aicert] .side{border-right:1px solid var(--line);flex-shrink:0;width:248px;padding:20px 18px}[data-aicert] .side-in{position:sticky;top:84px}[data-aicert] .side-h{text-transform:uppercase;letter-spacing:.08em;color:var(--ink-3);padding:0 12px 8px;font-size:10px;font-weight:600}[data-aicert] .nav{flex-direction:column;gap:2px;display:flex}[data-aicert] .ni{border-radius:var(--r-md);color:var(--ink-2);text-align:left;cursor:pointer;align-items:center;gap:10px;padding:9px 12px;font-size:14px;display:flex}[data-aicert] .ni:hover{background:var(--bg-elev);color:var(--ink)}[data-aicert] .ni.active{background:var(--ink);color:#fff8f1}[data-aicert] .ni .dot{background:var(--clay);border-radius:50%;width:6px;height:6px;margin-left:auto}[data-aicert] .side-foot{border-top:1px dashed var(--line);margin-top:24px;padding-top:18px}[data-aicert] .examdate{background:var(--clay-wash);border-radius:var(--r-md);border:1px solid var(--clay-soft);gap:10px;padding:12px;display:flex}[data-aicert] .examdate svg{color:var(--clay-deep);flex-shrink:0;margin-top:2px}[data-aicert] .examdate-l{color:var(--clay-deep);letter-spacing:.04em;text-transform:uppercase;font-size:11px;font-weight:600}[data-aicert] .examdate-d{color:var(--ink);margin-top:2px;font-size:14px;font-weight:600}[data-aicert] .main{flex:1;min-width:0;padding:28px 36px 80px}[data-aicert] .lp{max-width:1280px;margin:0 auto;padding:0 32px 80px}[data-aicert] .eb{color:var(--clay-deep);background:var(--clay-wash);border:1px solid var(--clay-soft);border-radius:999px;align-items:center;gap:8px;padding:6px 14px;font-size:12px;font-weight:500;display:inline-flex}[data-aicert] .eb-d{background:var(--clay);border-radius:50%;width:6px;height:6px;box-shadow:0 0 0 4px #c964422e}[data-aicert] .hero{padding:60px 0 80px}[data-aicert] .hero-grid{grid-template-columns:1.1fr 1fr;align-items:center;gap:64px;display:grid}[data-aicert] .h1{letter-spacing:-.035em;font-size:clamp(56px,7vw,96px);font-weight:500;line-height:.96;font-family:var(--serif);margin:22px 0 0}[data-aicert] .h1 i{color:var(--clay);font-style:italic;font-weight:600}[data-aicert] .h1zh{color:var(--ink-3);letter-spacing:.02em;font-size:22px;font-family:var(--serif);margin-top:14px}[data-aicert] .lede{color:var(--ink-2);text-wrap:pretty;max-width:520px;margin:28px 0 0;font-size:18px;line-height:1.55}[data-aicert] .cta-row{flex-wrap:wrap;gap:12px;margin-top:32px;display:flex}[data-aicert] .trust{border-top:1px dashed var(--line);align-items:center;gap:16px;margin-top:32px;padding-top:28px;display:flex}[data-aicert] .trust-num{font-size:14px;font-weight:600}[data-aicert] .trust-text{color:var(--ink-2);font-size:13px}[data-aicert] .stack{height:540px;position:relative}[data-aicert] .stack-glow{z-index:-1;background:radial-gradient(60% 60%,#c9644226,#0000 70%);position:absolute;inset:-40px}[data-aicert] .sc{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-lg);padding:18px;position:absolute}[data-aicert] .sc-paper{width:300px;top:0;left:0;transform:rotate(-5deg)}[data-aicert] .sc-paper-tag{font-size:10px;font-family:var(--mono);color:var(--ink-3);letter-spacing:.06em}[data-aicert] .sc-paper-t{font-family:var(--serif);margin:6px 0 12px;font-size:18px;font-weight:500;line-height:1.25}[data-aicert] .sc-paper-line{background:var(--bg-sunk);border-radius:3px;height:6px;margin-bottom:6px}[data-aicert] .sc-paper-line.s{width:60%}[data-aicert] .sc-arrow{width:80px;height:80px;color:var(--clay);z-index:3;place-items:center;display:grid;position:absolute;top:200px;left:140px;transform:rotate(15deg)}[data-aicert] .sc-q{z-index:2;width:340px;top:130px;right:20px;transform:rotate(3deg)}[data-aicert] .sc-q-tag{color:var(--clay-deep);text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px;font-size:10px;font-weight:700}[data-aicert] .sc-q-stem{margin-bottom:12px;font-size:14px;font-weight:500;line-height:1.4}[data-aicert] .sc-q-opt{border:1px solid var(--line);color:var(--ink-2);border-radius:8px;align-items:center;gap:8px;margin-bottom:5px;padding:7px 10px;font-size:12px;display:flex}[data-aicert] .sc-q-opt.on{background:var(--clay-wash);border-color:var(--clay-soft);color:var(--clay-deep)}[data-aicert] .sc-q-l{background:var(--bg-elev);border-radius:4px;place-items:center;width:18px;height:18px;font-size:10px;font-weight:700;display:grid}[data-aicert] .sc-q-opt.on .sc-q-l{background:var(--clay);color:#fff}[data-aicert] .sc-prog{z-index:2;width:280px;top:380px;left:60px;transform:rotate(-2deg)}[data-aicert] .sc-prog-l{color:var(--ink-3);text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px;font-size:10px}[data-aicert] .sc-prog-row{grid-template-columns:60px 1fr 30px;align-items:center;gap:8px;margin-bottom:6px;font-size:11px;display:grid}[data-aicert] .sc-prog-bar{background:var(--bg-sunk);border-radius:999px;height:5px;overflow:hidden}[data-aicert] .sc-prog-bar span{background:var(--clay);height:100%;display:block}[data-aicert] .logos{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:40px 0}[data-aicert] .logos-l{text-align:center;color:var(--ink-3);letter-spacing:.06em;text-transform:uppercase;margin-bottom:22px;font-size:12px}[data-aicert] .logos-row{opacity:.55;flex-wrap:wrap;justify-content:space-around;gap:32px;display:flex}[data-aicert] .logo-c{font-family:var(--serif);letter-spacing:-.02em;color:var(--ink-2);font-size:22px;font-weight:500}[data-aicert] .sh{text-align:center;max-width:760px;margin:0 auto 56px}[data-aicert] .sh .eb{margin-bottom:16px}[data-aicert] .h2{font-family:var(--serif);letter-spacing:-.025em;text-wrap:balance;margin:0;font-size:clamp(36px,4.4vw,56px);font-weight:500;line-height:1.05}[data-aicert] .sub{color:var(--ink-2);margin-top:18px;font-size:17px;line-height:1.5}[data-aicert] .how{padding:100px 0}[data-aicert] .how-rail{grid-template-columns:repeat(3,1fr);gap:24px;max-width:980px;margin:0 auto;display:grid;position:relative}[data-aicert] .how-n{font-family:var(--serif);color:var(--clay);letter-spacing:-.04em;font-size:56px;font-weight:500;line-height:1}[data-aicert] .how-t{font-family:var(--serif);letter-spacing:-.01em;margin:14px 0 8px;font-size:22px;font-weight:500}[data-aicert] .how-d{color:var(--ink-2);font-size:14px;line-height:1.5}[data-aicert] .how-vis{background:var(--bg-sunk);border-radius:var(--r-md);justify-content:center;align-items:center;min-height:120px;margin-top:18px;padding:16px;display:flex}[data-aicert] .feat{padding:60px 0 100px}[data-aicert] .feat-grid{grid-template-columns:repeat(3,1fr);grid-auto-rows:minmax(280px,auto);gap:18px;display:grid}[data-aicert] .fc{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);flex-direction:column;gap:12px;padding:24px;display:flex;position:relative;overflow:hidden}[data-aicert] .fc.span2{grid-column:span 2}[data-aicert] .fc h3{font-family:var(--serif);letter-spacing:-.015em;margin:0;font-size:22px;font-weight:500;line-height:1.2}[data-aicert] .fc p{color:var(--ink-2);margin:0;font-size:14px;line-height:1.5}[data-aicert] .fc-vis{flex:1;align-items:center;min-height:160px;margin-top:8px;display:flex}[data-aicert] .fv-bi{grid-template-columns:1fr 1fr;gap:12px;width:100%;display:grid}[data-aicert] .fv-bi-col{background:var(--bg-sunk);border-radius:var(--r-md);padding:14px}[data-aicert] .fv-bi-l{letter-spacing:.06em;color:var(--ink-3);margin-bottom:6px;font-size:10px;font-weight:700}[data-aicert] .fv-bi-l.zh-tag{color:var(--clay)}[data-aicert] .fv-bi-t{font-size:13px;line-height:1.5}[data-aicert] .fv-mq{background:var(--bg-sunk);border-radius:var(--r-md);width:100%;padding:14px}[data-aicert] .fv-mq-stem{margin-bottom:8px;font-size:12px;font-weight:500}[data-aicert] .fv-mq-opt{border-radius:6px;align-items:center;gap:6px;margin-bottom:4px;padding:6px 10px;font-size:11px;display:flex}[data-aicert] .fv-mq-opt.right{color:var(--success);background:#deead3}[data-aicert] .fv-mq-opt.wrong{color:var(--error);background:#fae2dc;text-decoration:line-through}[data-aicert] .fv-tutor{flex-direction:column;gap:6px;width:100%;display:flex}[data-aicert] .bub{border-radius:12px;max-width:80%;padding:8px 12px;font-size:12px;line-height:1.4}[data-aicert] .bub.user{background:var(--ink);color:#fff8f1;border-bottom-right-radius:4px;align-self:flex-end}[data-aicert] .bub.tutor{background:var(--bg-sunk);border:1px solid var(--line);border-bottom-left-radius:4px;align-self:flex-start}[data-aicert] .pr{padding:60px 0 100px}[data-aicert] .pr-grid{grid-template-columns:repeat(3,1fr);gap:18px;max-width:1080px;margin:0 auto;display:grid}[data-aicert] .pr-c{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);flex-direction:column;gap:12px;padding:32px 28px;display:flex;position:relative}[data-aicert] .pr-c.featured{border:2px solid var(--clay);transform:translateY(-8px);box-shadow:0 20px 60px #c964422e}[data-aicert] .pr-tag{background:var(--clay);color:#fff8f1;letter-spacing:.04em;border-radius:999px;padding:4px 12px;font-size:11px;font-weight:600;position:absolute;top:-12px;left:50%;transform:translate(-50%)}[data-aicert] .pr-name{font-family:var(--serif);font-size:18px;font-weight:500}[data-aicert] .pr-amt{font-family:var(--serif);letter-spacing:-.03em;font-size:48px;font-weight:500;line-height:1}[data-aicert] .pr-amt span{color:var(--ink-3);letter-spacing:0;font-size:16px;font-weight:400;font-family:var(--sans)}[data-aicert] .pr-list{flex-direction:column;gap:10px;margin:14px 0;padding:0;font-size:13px;list-style:none;display:flex}[data-aicert] .pr-list li{align-items:center;gap:8px;display:flex}[data-aicert] .pr-list li svg{color:var(--success);flex-shrink:0}[data-aicert] .faq{max-width:760px;margin:0 auto;padding:60px 0 100px}[data-aicert] .faq-i{border-bottom:1px solid var(--line);padding:18px 0}[data-aicert] .faq-q{cursor:pointer;width:100%;font-family:var(--serif);text-align:left;color:inherit;justify-content:space-between;align-items:center;gap:16px;padding:0;font-size:18px;font-weight:500;display:flex}[data-aicert] .faq-q-zh{color:var(--ink-3);font-size:13px;font-family:var(--serif);margin-left:8px}[data-aicert] .faq-q svg{color:var(--ink-3);transition:transform .2s}[data-aicert] .faq-i.open .faq-q svg{transform:rotate(45deg)}[data-aicert] .faq-a{color:var(--ink-2);max-height:0;font-size:14px;line-height:1.6;transition:max-height .25s,padding-top .25s;overflow:hidden}[data-aicert] .faq-i.open .faq-a{max-height:200px;padding-top:12px}[data-aicert] .faq-azh{color:var(--ink-3);margin-top:6px;font-size:13px}[data-aicert] .fcta{padding:80px 0 60px}[data-aicert] .fc-card{background:var(--ink);color:#fff8f1;border-radius:var(--r-xl);text-align:center;padding:72px 48px;position:relative;overflow:hidden}[data-aicert] .fc-card:before{content:"";background:radial-gradient(circle,#c9644266,#0000 70%);width:400px;height:400px;position:absolute;bottom:-100px;left:-100px}[data-aicert] .fc-card:after{content:"";background:radial-gradient(circle,#7a4a5259,#0000 70%);width:400px;height:400px;position:absolute;top:-100px;right:-100px}[data-aicert] .fc-h{font-family:var(--serif);letter-spacing:-.025em;margin:0;font-size:clamp(40px,5vw,64px);font-weight:500;line-height:1.05;position:relative}[data-aicert] .fc-zh{opacity:.7;font-size:18px;font-family:var(--serif);margin-top:14px;position:relative}[data-aicert] .fc-sub{opacity:.75;margin:24px 0 32px;font-size:16px;position:relative}[data-aicert] .fc-card .btn-primary{position:relative}[data-aicert] .fc-h-accent{color:var(--clay-soft);font-style:italic;font-family:var(--serif)}[data-aicert] .billing-toggle{background:var(--bg-sunk);border-radius:10px;gap:0;margin-top:18px;padding:4px;display:inline-flex}[data-aicert] .billing-toggle .seg-i{padding:7px 18px}[data-aicert] .foot{border-top:1px solid var(--line);padding:48px 0 24px}[data-aicert] .foot-in{grid-template-columns:1fr 3fr;gap:64px;max-width:1280px;margin:0 auto;padding:0 32px;display:grid}[data-aicert] .foot-cols{grid-template-columns:repeat(4,1fr);gap:32px;display:grid}[data-aicert] .foot-cols a{color:var(--ink-2);cursor:pointer;padding:4px 0;font-size:13px;display:block}[data-aicert] .foot-cols a:hover{color:var(--ink)}[data-aicert] .foot-h{letter-spacing:.04em;text-transform:uppercase;color:var(--ink);margin-bottom:12px;font-size:12px;font-weight:600}[data-aicert] .foot-fine{border-top:1px solid var(--line);color:var(--ink-3);justify-content:space-between;max-width:1280px;margin:32px 32px 0;padding-top:24px;font-size:12px;display:flex}[data-aicert] .dash{max-width:1140px;margin:0 auto}[data-aicert] .dash-hero{justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:32px;display:flex}[data-aicert] .dash-eyebrow{color:var(--ink-2);font-size:14px}[data-aicert] .dash-h1{font-family:var(--serif);letter-spacing:-.025em;margin:6px 0 0;font-size:44px;font-weight:500;line-height:1.05}[data-aicert] .dash-h1zh{color:var(--ink-3);font-size:16px;font-family:var(--serif);margin-top:6px}[data-aicert] .dash-grid{grid-template-columns:repeat(3,1fr);gap:18px;display:grid}[data-aicert] .dc{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px}[data-aicert] .dc.span2{grid-column:span 2}[data-aicert] .dc-h{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}[data-aicert] .dc-h h3{font-family:var(--serif);letter-spacing:-.01em;margin:0;font-size:17px;font-weight:500}[data-aicert] .dc-link{color:var(--ink-2);cursor:pointer;font-size:13px}[data-aicert] .dc-link:hover{color:var(--clay-deep)}[data-aicert] .resume{cursor:pointer;border-radius:var(--r-md);grid-template-columns:200px 1fr;gap:24px;padding:8px;transition:background .15s;display:grid}[data-aicert] .resume:hover{background:var(--bg-elev)}[data-aicert] .resume-thumb{background:linear-gradient(135deg, var(--clay), var(--clay-deep));border-radius:var(--r-md);aspect-ratio:4/3;color:#fff8f1;font-family:var(--serif);text-align:center;place-items:center;padding:20px;font-size:14px;display:grid;position:relative}[data-aicert] .resume-tag{font-size:10px;font-weight:600;font-family:var(--sans);background:#00000040;border-radius:999px;padding:3px 8px;position:absolute;top:10px;left:10px}[data-aicert] .resume-mod{color:var(--ink-3);font-size:12px}[data-aicert] .resume-t{font-family:var(--serif);letter-spacing:-.015em;margin:4px 0;font-size:22px;font-weight:500;line-height:1.2}[data-aicert] .resume-zh{color:var(--ink-3);font-size:13px;font-family:var(--serif);margin-bottom:14px}[data-aicert] .resume-bar{background:var(--bg-sunk);border-radius:999px;height:6px;margin-bottom:10px;overflow:hidden}[data-aicert] .resume-bar span{background:var(--clay);height:100%;display:block}[data-aicert] .resume-meta{color:var(--ink-3);gap:16px;font-size:12px;display:flex}[data-aicert] .streak-num{align-items:baseline;gap:8px;margin-bottom:16px;display:flex}[data-aicert] .streak-num .serif{font-family:var(--serif);letter-spacing:-.04em;font-size:56px;font-weight:500;line-height:1}[data-aicert] .streak-num small{color:var(--ink-3);font-size:14px}[data-aicert] .streak-grid{grid-template-columns:repeat(7,1fr);gap:4px;margin-bottom:12px;display:grid}[data-aicert] .streak-cell{aspect-ratio:1;background:var(--bg-sunk);border-radius:4px}[data-aicert] .streak-cell.filled{background:var(--clay)}[data-aicert] .streak-cell.today{box-shadow:0 0 0 2px var(--clay-soft)}[data-aicert] .streak-note{color:var(--ink-3);font-size:12px}[data-aicert] .doms{flex-direction:column;gap:10px;display:flex}[data-aicert] .dom-row{grid-template-columns:160px 1fr 60px;align-items:center;gap:14px;display:grid}[data-aicert] .dom-name{font-family:var(--serif);font-size:14px;font-weight:500}[data-aicert] .dom-track{background:var(--bg-sunk);border-radius:999px;height:10px;position:relative;overflow:hidden}[data-aicert] .dom-fill{border-radius:999px;position:absolute;inset:0 auto 0 0}[data-aicert] .dom-fill.low{background:#d88060}[data-aicert] .dom-fill.mid{background:var(--gold)}[data-aicert] .dom-fill.high{background:var(--success)}[data-aicert] .dom-v{text-align:right;font-size:13px;font-weight:600;font-family:var(--mono)}[data-aicert] .plan-col{flex-direction:column;gap:10px;font-size:13px;display:flex}[data-aicert] .plan-item{align-items:flex-start;gap:10px;display:flex}[data-aicert] .plan-item-dot{border-radius:50%;flex-shrink:0;width:8px;height:8px;margin-top:6px}[data-aicert] .plan-item-dot-clay{background:var(--clay)}[data-aicert] .plan-item-dot-gold{background:var(--gold)}[data-aicert] .plan-item-dot-success{background:var(--success)}[data-aicert] .plan-item-meta{color:var(--ink-3);font-size:12px}[data-aicert] .plan-cta{align-self:flex-start;margin-top:14px}[data-aicert] .recent-q{grid-template-columns:repeat(3,1fr);gap:12px;display:grid}[data-aicert] .rq{background:var(--bg);border:1px solid var(--line);border-radius:var(--r-md);cursor:pointer;padding:14px}[data-aicert] .rq:hover{border-color:var(--clay)}[data-aicert] .rq-tag{color:var(--clay-deep);text-transform:uppercase;letter-spacing:.05em;margin-bottom:6px;font-size:10px;font-weight:700}[data-aicert] .rq-q{margin-bottom:10px;font-size:13px;line-height:1.4}[data-aicert] .rq-age{color:var(--ink-3);font-size:11px}[data-aicert] .lib{max-width:1240px;margin:0 auto}[data-aicert] .lib-head{justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:24px;display:flex}[data-aicert] .lib-h1{font-family:var(--serif);letter-spacing:-.025em;margin:0;font-size:44px;font-weight:500;line-height:1.05}[data-aicert] .lib-sub{color:var(--ink-2);max-width:560px;margin:8px 0 0;font-size:15px}[data-aicert] .lib-bar{border-bottom:1px solid var(--line);grid-template-columns:auto 1fr auto;align-items:center;gap:14px;margin-bottom:22px;padding-bottom:18px;display:grid}[data-aicert] .tabs{background:var(--bg-sunk);border-radius:10px;gap:4px;padding:4px;display:flex}[data-aicert] .tab{cursor:pointer;font:inherit;color:var(--ink-2);background:0 0;border:0;border-radius:7px;align-items:center;gap:6px;padding:7px 14px;font-size:13px;font-weight:500;display:inline-flex}[data-aicert] .tab.on{background:var(--paper);color:var(--ink);box-shadow:0 1px 2px #0000000f}[data-aicert] .lib-grid{grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:18px;display:grid}[data-aicert] .lc{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);cursor:pointer;flex-direction:column;padding:22px;transition:transform .18s,border-color .18s,box-shadow .18s;display:flex;position:relative;overflow:hidden}[data-aicert] .lc:before{content:"";background:var(--t,var(--clay));height:4px;position:absolute;inset:0 0 auto}[data-aicert] .lc:hover{border-color:var(--t,var(--clay));transform:translateY(-2px);box-shadow:0 12px 28px #0000000f}[data-aicert] .lc-top{align-items:center;gap:12px;margin-bottom:14px;display:flex}[data-aicert] .lc-icon{background:var(--tw,var(--clay-wash));width:40px;height:40px;color:var(--td,var(--clay-deep));border:1px solid var(--ts,var(--clay-soft));border-radius:10px;place-items:center;display:grid}[data-aicert] .lc-meta{flex-direction:column;flex:1;gap:1px;display:flex}[data-aicert] .lc-code{color:var(--td,var(--clay-deep));letter-spacing:.05em;font-size:11px;font-weight:700;font-family:var(--mono)}[data-aicert] .lc-src{text-transform:uppercase;letter-spacing:.08em;color:var(--ink-3);font-size:10px}[data-aicert] .lc-title{font-family:var(--serif);letter-spacing:-.012em;margin-bottom:6px;font-size:19px;font-weight:500;line-height:1.25}[data-aicert] .lc-blurb{color:var(--ink-2);margin-bottom:16px;font-size:13px;line-height:1.5}[data-aicert] .lc-stats{color:var(--ink-3);gap:14px;margin-bottom:14px;font-size:12px;display:flex}[data-aicert] .lc-stats span{align-items:center;gap:4px;display:inline-flex}[data-aicert] .lc-prog{align-items:center;gap:8px;margin-bottom:12px;display:flex}[data-aicert] .lc-prog-bar{background:var(--bg-sunk);border-radius:999px;flex:1;height:5px;overflow:hidden}[data-aicert] .lc-prog-bar span{background:var(--t,var(--clay));height:100%;display:block}[data-aicert] .lc-prog-l{color:var(--ink-3);font-size:11px}[data-aicert] .lc-cta{justify-content:space-between;align-items:center;gap:12px;margin-top:auto;display:flex}[data-aicert] .t-clay{--t:var(--clay);--tw:var(--clay-wash);--ts:var(--clay-soft);--td:var(--clay-deep)}[data-aicert] .t-plum{--t:var(--plum);--tw:#eae0f0;--ts:#d9c8e1;--td:#5a3640}[data-aicert] .t-sky{--t:var(--sky);--tw:#dce7ec;--ts:#bfcfd8;--td:#41606d}[data-aicert] .t-olive{--t:var(--olive);--tw:#e5e3cc;--ts:#c9c7a6;--td:#4d4c2c}[data-aicert] .t-gold{--t:var(--gold);--tw:#f1e4c0;--ts:#decf94;--td:#957324}[data-aicert] .t-ink{--t:var(--ink);--tw:#ddd6c8;--ts:#b5aea1;--td:#1b1a18}[data-aicert] .upl{max-width:980px;margin:0 auto}[data-aicert] .upl-h1{font-family:var(--serif);letter-spacing:-.022em;margin:0;font-size:38px;font-weight:500;line-height:1.1}[data-aicert] .upl-sub{color:var(--ink-2);max-width:580px;margin:8px 0 24px;font-size:14px}[data-aicert] .drop{border:2px dashed var(--clay-soft);border-radius:var(--r-lg);text-align:center;background:var(--clay-wash);cursor:pointer;padding:64px 32px;transition:all .2s}[data-aicert] .drop:hover{border-color:var(--clay);background:#faead9}[data-aicert] .drop-h{font-family:var(--serif);color:var(--ink);margin:14px 0 6px;font-size:24px;font-weight:500}[data-aicert] .drop-d{color:var(--ink-3);margin-bottom:18px;font-size:13px}[data-aicert] .opts{grid-template-columns:1fr 1fr;gap:18px;margin-top:24px;display:grid}[data-aicert] .opt-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px}[data-aicert] .opt-h{text-transform:uppercase;letter-spacing:.06em;color:var(--ink-2);margin-bottom:14px;font-size:13px;font-weight:600}[data-aicert] .upl-l{color:var(--ink-2);margin:14px 0 6px;font-size:12px;font-weight:500;display:block}[data-aicert] .upl-l:first-child{margin-top:0}[data-aicert] .upl-input{background:var(--bg);border:1px solid var(--line);width:100%;height:38px;font:inherit;color:var(--ink);box-sizing:border-box;border-radius:8px;outline:0;padding:0 12px;font-size:13px}[data-aicert] .upl-input:focus{border-color:var(--clay);background:var(--paper)}[data-aicert] .seg{background:var(--bg-sunk);border-radius:8px;gap:0;padding:3px;display:flex}[data-aicert] .seg-i{cursor:pointer;font:inherit;color:var(--ink-2);background:0 0;border:0;border-radius:6px;flex:1;padding:7px 8px;font-size:12px}[data-aicert] .seg-i.on{background:var(--paper);color:var(--ink);font-weight:500;box-shadow:0 1px 2px #0000000f}[data-aicert] .upl-foot{justify-content:space-between;align-items:center;margin-top:24px;display:flex}[data-aicert] .gen{text-align:center;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);margin-top:24px;padding:64px 32px}[data-aicert] .gen-orb{background:linear-gradient(135deg, var(--clay), var(--plum));border-radius:50%;width:80px;height:80px;margin:0 auto 18px;animation:2s infinite aicert-pulse;position:relative}@keyframes aicert-pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.85;transform:scale(1.1)}}[data-aicert] .gen-h{font-family:var(--serif);margin:0 0 6px;font-size:24px;font-weight:500}[data-aicert] .gen-d{color:var(--ink-2);font-size:14px}[data-aicert] .gen-log{text-align:left;background:var(--bg-sunk);max-width:540px;font-size:13px;line-height:1.7;font-family:var(--mono);border-radius:10px;margin:24px auto 0;padding:16px}[data-aicert] .gen-line{color:var(--ink-2);align-items:center;gap:8px;display:flex}[data-aicert] .gen-line svg{color:var(--moss)}[data-aicert] .gen-line.now{color:var(--ink);font-weight:500}[data-aicert] .gen-spin{border:2px solid var(--clay-soft);border-top-color:var(--clay);border-radius:50%;width:11px;height:11px;animation:.8s linear infinite aicert-spin}@keyframes aicert-spin{to{transform:rotate(360deg)}}[data-aicert] .quiz{max-width:820px;margin:0 auto}[data-aicert] .quiz-head{justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:28px;display:flex}[data-aicert] .quiz-eyebrow{color:var(--ink-3);align-items:center;gap:10px;margin-bottom:8px;font-size:12px;display:flex}[data-aicert] .quiz-h1{font-family:var(--serif);letter-spacing:-.02em;margin:0;font-size:30px;font-weight:500;line-height:1.15}[data-aicert] .quiz-prog{text-align:right}[data-aicert] .quiz-prog-bar{gap:4px;margin-bottom:6px;display:flex}[data-aicert] .pip{background:var(--bg-sunk);border-radius:999px;width:24px;height:6px}[data-aicert] .pip.active{background:var(--clay)}[data-aicert] .pip.right{background:var(--success)}[data-aicert] .pip.wrong{background:var(--error)}[data-aicert] .quiz-prog-l{color:var(--ink-3);font-size:12px}[data-aicert] .quiz-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:36px 40px}[data-aicert] .quiz-stem{font-family:var(--serif);letter-spacing:-.015em;text-wrap:pretty;margin:0;font-size:22px;font-weight:500;line-height:1.3}[data-aicert] .quiz-stem-zh{font-family:var(--serif);color:var(--ink-3);margin-top:6px;font-size:14px}[data-aicert] .quiz-cite{background:var(--bg);border-radius:var(--r-md);border-left:3px solid var(--plum);color:var(--ink-2);font-size:12px;line-height:1.5;font-family:var(--mono);align-items:flex-start;gap:8px;margin-top:18px;padding:12px 14px;display:flex}[data-aicert] .quiz-cite svg{color:var(--plum);flex-shrink:0;margin-top:2px}[data-aicert] .quiz-opts{flex-direction:column;gap:10px;margin:24px 0 0;display:flex}[data-aicert] .qo{border:1.5px solid var(--line);border-radius:var(--r-md);background:var(--bg);text-align:left;cursor:pointer;align-items:center;gap:14px;padding:16px 18px;transition:all .15s;display:flex}[data-aicert] .qo:hover:not(:disabled){border-color:var(--ink-3);background:var(--bg-elev)}[data-aicert] .qo.picked{border-color:var(--clay);background:var(--clay-wash)}[data-aicert] .qo.right{border-color:var(--success);background:#deead3}[data-aicert] .qo.wrong{border-color:var(--error);background:#fae2dc}[data-aicert] .qo-l{background:var(--paper);border:1px solid var(--line);width:28px;height:28px;font-size:13px;font-weight:600;font-family:var(--mono);border-radius:8px;flex-shrink:0;place-items:center;display:grid}[data-aicert] .qo.picked .qo-l{background:var(--clay);color:#fff;border-color:var(--clay)}[data-aicert] .qo.right .qo-l{background:var(--success);color:#fff;border-color:var(--success)}[data-aicert] .qo.wrong .qo-l{background:var(--error);color:#fff;border-color:var(--error)}[data-aicert] .qo-t{flex:1;font-size:15px;line-height:1.45}[data-aicert] .expl{border-radius:var(--r-md);border:1px solid var(--line);background:var(--bg);margin-top:22px;padding:18px 20px}[data-aicert] .expl.good{background:#eaf2dd;border-color:#c6d9b4}[data-aicert] .expl.bad{background:#faeae3;border-color:#f2c9bd}[data-aicert] .expl-h{align-items:center;gap:8px;font-size:14px;font-weight:600;display:flex}[data-aicert] .expl.good .expl-h{color:var(--success)}[data-aicert] .expl.bad .expl-h{color:var(--error)}[data-aicert] .expl-why{color:var(--ink);margin-top:10px;font-size:14px;line-height:1.55}[data-aicert] .expl-zh{color:var(--ink-3);font-size:13px;font-family:var(--serif);margin-top:6px}[data-aicert] .quiz-actions{border-top:1px dashed var(--line);justify-content:space-between;gap:10px;margin-top:28px;padding-top:20px;display:flex}[data-aicert] .quiz-meta-tag{font-size:11px;font-family:var(--mono);color:var(--ink-3);letter-spacing:.05em;margin-bottom:14px}[data-aicert] .qo-correct-flag{color:var(--success);align-items:center;gap:4px;font-size:13px;font-weight:600;display:inline-flex}[data-aicert] .expl-actions{gap:10px;margin-top:14px;display:flex}[data-aicert] .res{max-width:1140px;margin:0 auto}[data-aicert] .res-hero{border-radius:var(--r-xl);background:linear-gradient(135deg,#deead3,#eaf2dd);border:1px solid #c6d9b4;grid-template-columns:1fr auto;align-items:center;gap:32px;margin-bottom:28px;padding:36px 40px;display:grid}[data-aicert] .res-h1{font-family:var(--serif);letter-spacing:-.025em;margin:0;font-size:48px;font-weight:500;line-height:1.05}[data-aicert] .res-h1zh{font-family:var(--serif);color:var(--ink-3);margin-top:6px;font-size:16px}[data-aicert] .res-sub{color:var(--ink-2);max-width:540px;margin:18px 0 24px;font-size:16px;line-height:1.55}[data-aicert] .res-score{font-family:var(--serif);letter-spacing:-.04em;color:var(--success);font-size:96px;font-weight:500;line-height:1}[data-aicert] .res-score-l{color:var(--ink-3);text-align:center;letter-spacing:.05em;text-transform:uppercase;margin-top:4px;font-size:13px}[data-aicert] .res-grid{grid-template-columns:repeat(2,1fr);gap:18px;display:grid}[data-aicert] .rc{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px}[data-aicert] .rc h3{font-family:var(--serif);margin:0 0 18px;font-size:17px;font-weight:500}[data-aicert] .rc-col{flex-direction:column;gap:10px;display:flex}[data-aicert] .rc-col.rc-col-wide{gap:14px}[data-aicert] .rc-col.rc-col-roomy{gap:12px;font-size:14px}[data-aicert] .res-eyebrow{color:var(--success);letter-spacing:.04em;text-transform:uppercase;font-size:13px;font-weight:600}[data-aicert] .res-h1-accent{color:var(--success);font-style:italic}[data-aicert] .res-requeued{background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:14px}[data-aicert] .res-requeued-stem{margin-top:4px;font-size:13px;line-height:1.4}[data-aicert] .res-step{align-items:flex-start;gap:10px;display:flex}[data-aicert] .res-chart{display:block}[data-aicert] .res-chart-bar{fill:var(--clay-soft)}[data-aicert] .res-chart-bar.slow{fill:var(--clay)}[data-aicert] .res-chart-label{fill:var(--ink-3)}[data-aicert] .res-chart-baseline{stroke:var(--ink-4);opacity:.5}[data-aicert] .tut{grid-template-columns:240px 1fr;gap:24px;max-width:1140px;min-height:calc(100vh - 200px);margin:0 auto;display:grid}[data-aicert] .tut-rail{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);align-self:flex-start;padding:18px}[data-aicert] .tut-rail-h{color:var(--ink-3);text-transform:uppercase;letter-spacing:.05em;margin-bottom:12px;font-size:11px;font-weight:600}[data-aicert] .thread{text-align:left;cursor:pointer;border-radius:8px;padding:10px 12px;font-size:13px}[data-aicert] .thread:hover{background:var(--bg-elev)}[data-aicert] .thread.on{background:var(--ink);color:#fff8f1}[data-aicert] .thread-t{font-weight:500}[data-aicert] .thread-d{color:var(--ink-3);margin-top:2px;font-size:11px}[data-aicert] .thread.on .thread-d{color:#ffffff80}[data-aicert] .tut-main{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);flex-direction:column;display:flex;overflow:hidden}[data-aicert] .tut-head{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;padding:22px 28px;display:flex}[data-aicert] .tut-h{font-family:var(--serif);letter-spacing:-.015em;margin:0;font-size:22px;font-weight:500}[data-aicert] .tut-stream{flex-direction:column;flex:1;gap:20px;min-height:400px;max-height:60vh;padding:28px;display:flex;overflow-y:auto}[data-aicert] .tm{gap:10px;display:flex}[data-aicert] .tm.user{justify-content:flex-end}[data-aicert] .tm.tutor .bw{max-width:80%}[data-aicert] .tm.user .bw{max-width:70%}[data-aicert] .tm-av{background:var(--clay-wash);width:32px;height:32px;color:var(--clay-deep);border-radius:50%;flex-shrink:0;place-items:center;display:grid}[data-aicert] .bw{flex-direction:column;gap:8px;display:flex}[data-aicert] .bb{border-radius:var(--r-md);white-space:pre-line;padding:14px 16px;font-size:14px;line-height:1.55}[data-aicert] .tm.tutor .bb{background:var(--bg);border:1px solid var(--line);border-bottom-left-radius:4px}[data-aicert] .tm.user .bb{background:var(--ink);color:#fff8f1;border-bottom-right-radius:4px}[data-aicert] .tm-cite{color:var(--ink-3);font-size:11px;font-family:var(--mono);background:var(--bg-sunk);border-radius:4px;align-self:flex-start;padding:4px 8px}[data-aicert] .tut-input{border-top:1px solid var(--line);background:var(--bg);padding:18px 24px}[data-aicert] .tut-box{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);align-items:flex-end;gap:10px;padding:12px;display:flex}[data-aicert] .tut-box:focus-within{border-color:var(--clay)}[data-aicert] .tut-box textarea{resize:none;color:var(--ink);background:0 0;border:none;outline:none;flex:1;min-height:24px;font-size:14px;line-height:1.5}[data-aicert] .tut-rail-scope{border-bottom:1px solid var(--line);margin-bottom:8px;padding:4px 8px 12px}[data-aicert] .tut-rail-h-flush{margin:0}[data-aicert] .tut-rail-scope-t{margin-top:4px;font-size:13px;font-weight:500}[data-aicert] .tut-rail-scope-d{color:var(--ink-3);margin-top:2px;font-size:11px}[data-aicert] .tut-rail-list{flex-direction:column;gap:4px;display:flex}[data-aicert] .tut-rail-newbtn{width:100%;margin-top:14px}[data-aicert] .tut-head-sub{color:var(--ink-3);margin-top:2px;font-size:12px}[data-aicert] .tut-send-btn{padding:8px 14px}[data-aicert] .tut-chips{flex-wrap:wrap;gap:8px;margin-top:10px;display:flex}[data-aicert] .lobby{max-width:1280px;margin:0 auto}[data-aicert] .lobby-hero{justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:32px;display:flex}[data-aicert] .lobby-h1{font-family:var(--serif);letter-spacing:-.025em;margin:0;font-size:44px;font-weight:500;line-height:1.05}[data-aicert] .lobby-zh{color:var(--ink-3);font-size:16px;font-family:var(--serif);margin-top:6px}[data-aicert] .lobby-tabs{background:var(--bg-sunk);border-radius:10px;gap:4px;width:max-content;margin-bottom:22px;padding:4px;display:flex}[data-aicert] .lobby-stats{grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:32px;display:grid}[data-aicert] .lobby-stat{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:18px 22px}[data-aicert] .lobby-stat-l{color:var(--ink-3);text-transform:uppercase;letter-spacing:.06em;font-size:11px;font-weight:600}[data-aicert] .lobby-stat-v{font-family:var(--serif);letter-spacing:-.02em;margin-top:6px;font-size:28px;font-weight:500;line-height:1}[data-aicert] .lobby-stat-d{color:var(--ink-3);margin-top:4px;font-size:12px}[data-aicert] .lobby-create{background:linear-gradient(135deg, var(--clay-wash), #faead9);border:1.5px dashed var(--clay-soft);border-radius:var(--r-lg);cursor:pointer;flex-direction:column;justify-content:center;min-height:280px;padding:24px;transition:transform .15s,border-color .15s;display:flex}[data-aicert] .lobby-create:hover{border-color:var(--clay);transform:translateY(-2px)}[data-aicert] .lobby-create-ic{background:var(--clay);color:#fff8f1;border-radius:12px;place-items:center;width:48px;height:48px;margin-bottom:14px;display:grid}[data-aicert] .lobby-create h3{font-family:var(--serif);letter-spacing:-.015em;color:var(--ink);margin:0 0 6px;font-size:22px;font-weight:500}[data-aicert] .lobby-create p{color:var(--ink-2);margin:0;font-size:13px;line-height:1.5}[data-aicert] .lobby-create-cta{color:var(--clay-deep);margin-top:14px;font-size:12px;font-weight:500}[data-aicert] .lobby-hero-eyebrow{color:var(--ink-2);font-size:13px}[data-aicert] .lobby-hero-actions{gap:10px;display:flex}[data-aicert] .tab-n{color:var(--ink-3);margin-left:4px;font-size:11px}[data-aicert] .lc-zh{color:var(--ink-3);font-size:13px;font-family:var(--serif);margin-top:-2px;margin-bottom:8px}[data-aicert] .lc-icon-glyph{font-size:18px;font-weight:600}[data-aicert] .lc-icon-glyph.lc-icon-glyph-sm{font-size:16px}[data-aicert] .lc-cta-meta{color:var(--ink-3);font-size:12px}[data-aicert] .lc-cta-pad{margin-top:14px}[data-aicert] .lc-kind{letter-spacing:.05em;text-transform:uppercase;font-size:10px;font-weight:700;font-family:var(--mono);border-radius:999px;padding:3px 8px;position:absolute;top:14px;right:14px}[data-aicert] .lc-kind.official{color:#41606d;background:#dce7ec}[data-aicert] .lc-kind.private{background:var(--bg-sunk);color:var(--ink-3)}[data-aicert] .mkt{max-width:1280px;margin:0 auto}[data-aicert] .mkt-hero{border-radius:var(--r-xl);background:linear-gradient(135deg,#dce7ec,#eaf2dd);border:1px solid #bfcfd8;grid-template-columns:1.4fr 1fr;align-items:center;gap:32px;margin-bottom:32px;padding:40px 36px;display:grid}[data-aicert] .mkt-h1{font-family:var(--serif);letter-spacing:-.022em;margin:0;font-size:38px;font-weight:500;line-height:1.1}[data-aicert] .mkt-sub{color:var(--ink-2);max-width:480px;margin:14px 0 22px;font-size:15px}[data-aicert] .mkt-cats{flex-wrap:wrap;gap:8px;margin-bottom:22px;display:flex}[data-aicert] .mkt-cat{background:var(--paper);border:1px solid var(--line);cursor:pointer;border-radius:999px;padding:6px 14px;font-size:13px}[data-aicert] .mkt-cat.on{background:var(--ink);color:var(--paper);border-color:var(--ink)}[data-aicert] .mkt-h1-accent{color:var(--clay);font-style:italic}[data-aicert] .mkt-stack{height:200px;position:relative}[data-aicert] .mkt-stack-card{width:200px;position:absolute}[data-aicert] .mkt-stack-card-1{top:0;left:30px;transform:rotate(-6deg)}[data-aicert] .mkt-stack-card-2{background:var(--clay-wash);top:30px;left:160px;transform:rotate(4deg)}[data-aicert] .mkt-stack-t{font-size:14px}[data-aicert] .mkt-stack-tag-warm{color:var(--clay-deep)}[data-aicert] .wiz{max-width:920px;margin:0 auto}[data-aicert] .wiz-stepper{justify-content:center;align-items:center;gap:0;margin-bottom:36px;display:flex}[data-aicert] .wiz-step{align-items:center;gap:10px;display:flex}[data-aicert] .wiz-step+.wiz-step{margin-left:0}[data-aicert] .wiz-step-num{background:var(--bg-sunk);width:30px;height:30px;color:var(--ink-3);font-size:13px;font-weight:600;font-family:var(--mono);border:1.5px solid #0000;border-radius:50%;place-items:center;display:grid}[data-aicert] .wiz-step.on .wiz-step-num{background:var(--clay);color:#fff8f1;border-color:var(--clay)}[data-aicert] .wiz-step.done .wiz-step-num{background:var(--success);color:#fff;border-color:var(--success)}[data-aicert] .wiz-step-l{color:var(--ink-3);font-size:13px;font-weight:500}[data-aicert] .wiz-step.on .wiz-step-l,[data-aicert] .wiz-step.done .wiz-step-l{color:var(--ink)}[data-aicert] .wiz-line{background:var(--line);width:60px;height:1.5px;margin:0 12px}[data-aicert] .wiz-line.done{background:var(--success)}[data-aicert] .wiz-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:36px}[data-aicert] .wiz-h2{font-family:var(--serif);letter-spacing:-.018em;margin:0 0 8px;font-size:28px;font-weight:500}[data-aicert] .wiz-sub{color:var(--ink-2);margin:0 0 24px;font-size:14px}[data-aicert] .wiz-foot{border-top:1px dashed var(--line);justify-content:space-between;margin-top:28px;padding-top:20px;display:flex}[data-aicert] .wiz-h2-inline{margin:0;font-size:22px}[data-aicert] .wiz-h2-sub{color:var(--ink-3);margin:4px 0 0;font-size:13px}[data-aicert] .wiz-chip-row{color:var(--ink-3);gap:10px;margin-bottom:18px;font-size:12px;display:flex}[data-aicert] .wiz-chip-row.wiz-chip-row-tight{margin-bottom:6px}[data-aicert] .drop-ic{color:var(--clay-deep)}[data-aicert] .drop-sample{color:var(--ink-3);margin-top:14px;font-size:12px}[data-aicert] .drop-sample-link{color:var(--clay-deep);cursor:pointer;text-decoration:underline}[data-aicert] .opt-desc{color:var(--ink-2);margin:0 0 14px;font-size:13px;line-height:1.5}[data-aicert] .mix-card{text-align:left;cursor:pointer;border:1.5px solid var(--line);background:var(--paper);border-radius:8px;width:100%;margin-bottom:6px;padding:10px 12px;transition:border-color .15s,background .15s;display:block}[data-aicert] .mix-card:hover{border-color:var(--ink-3)}[data-aicert] .mix-card.on{border-color:var(--clay);background:var(--clay-wash)}[data-aicert] .mix-card-t{color:var(--ink);font-size:13px;font-weight:500}[data-aicert] .mix-card-d{color:var(--ink-3);font-size:11px;font-family:var(--mono);margin-top:2px}[data-aicert] .tree-mod-meta{flex:1}[data-aicert] .merge-pop-empty{color:var(--ink-3);cursor:not-allowed}[data-aicert] .ft-types{gap:6px;display:flex}[data-aicert] .ft-type{background:var(--bg-sunk);color:var(--ink-3);font-family:var(--mono);cursor:pointer;border:0;border-radius:4px;padding:3px 7px;font-size:11px}[data-aicert] .ft-type.on{background:var(--clay-wash);color:var(--clay-deep)}[data-aicert] .ft-time{color:var(--ink-3);font-size:11px;font-family:var(--mono);text-align:right;width:54px}[data-aicert] .build-status-wrap{align-items:center;gap:14px;display:flex}[data-aicert] .build-status{color:#fff;border-radius:50%;flex-shrink:0;place-items:center;width:36px;height:36px;display:grid}[data-aicert] .build-status-success{background:var(--success)}[data-aicert] .build-status-error{background:var(--clay);font-weight:600}[data-aicert] .build-mod-cross{font-size:14px;font-weight:700}[data-aicert] .build-mod-pending{background:var(--bg);border:2px solid var(--line-strong);border-radius:50%;width:11px;height:11px;display:inline-block}[data-aicert] .build-mod-t{font-family:var(--serif);font-size:14px;font-weight:500}[data-aicert] .build-mod-d{color:var(--ink-3);font-size:11px;font-family:var(--mono);margin-top:2px}[data-aicert] .build-mod-bar-err{background:var(--clay)!important}[data-aicert] .pv-meta-regen{color:var(--clay-deep)}[data-aicert] .pv-choice-t{flex:1}[data-aicert] .pv-choice-tick{color:var(--success);display:flex}[data-aicert] .pv-nav{gap:8px;display:flex}[data-aicert] .pub-summary{background:var(--bg-sunk);color:var(--ink-3);font-size:12px;font-family:var(--mono);border-radius:8px;margin-top:18px;padding:14px}[data-aicert] .pub-summary strong{color:var(--ink-2)}[data-aicert] .tree{flex-direction:column;gap:6px;margin-top:18px;display:flex}[data-aicert] .tree-mod{background:var(--bg);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden}[data-aicert] .tree-mod-h{cursor:pointer;align-items:center;gap:12px;padding:12px 14px;display:flex}[data-aicert] .tree-mod-h:hover{background:var(--bg-elev)}[data-aicert] .tree-mod-n{font-family:var(--mono);color:var(--ink-3);width:24px;font-size:11px}[data-aicert] .tree-mod-t{font-family:var(--serif);flex:1;font-size:15px;font-weight:500}[data-aicert] .tree-mod-zh{color:var(--ink-3);font-size:12px;font-family:var(--serif)}[data-aicert] .tree-mod-c{font-family:var(--mono);color:var(--ink-3);font-size:11px}[data-aicert] .tree-act{gap:6px;display:flex}[data-aicert] .tree-act button{border:1px solid var(--line);color:var(--ink-2);background:var(--paper);border-radius:6px;padding:4px 8px;font-size:11px}[data-aicert] .tree-act button:hover{border-color:var(--ink-3);color:var(--ink)}[data-aicert] .tree-sub{flex-direction:column;gap:4px;padding:0 14px 12px 50px;display:flex}[data-aicert] .tree-sub-i{color:var(--ink-2);align-items:center;gap:8px;padding:6px 0;font-size:13px;display:flex}[data-aicert] .tree-sub-i:before{content:"·";color:var(--ink-4)}[data-aicert] .syl{max-width:1080px;margin:0 auto}[data-aicert] .syl-h1{font-family:var(--serif);letter-spacing:-.022em;margin:0;font-size:38px;font-weight:500;line-height:1.1}[data-aicert] .syl-sub{color:var(--ink-2);max-width:560px;margin:8px 0 24px;font-size:14px}[data-aicert] .syl-tree{flex-direction:column;gap:10px;display:flex}[data-aicert] .syl-mod{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}[data-aicert] .syl-mod.locked{opacity:.55}[data-aicert] .syl-mod-h{cursor:pointer;grid-template-columns:auto 1fr auto auto;align-items:center;gap:18px;padding:18px 22px;display:grid}[data-aicert] .syl-mod-h:hover{background:var(--bg-elev)}[data-aicert] .syl-mod.active .syl-mod-h{background:var(--clay-wash)}[data-aicert] .syl-mod-n{font-family:var(--serif);color:var(--ink-4);letter-spacing:-.03em;font-size:32px;font-weight:500;line-height:1}[data-aicert] .syl-mod.active .syl-mod-n{color:var(--clay)}[data-aicert] .syl-mod.done .syl-mod-n{color:var(--success)}[data-aicert] .syl-mod-t{font-family:var(--serif);letter-spacing:-.012em;font-size:20px;font-weight:500;line-height:1.2}[data-aicert] .syl-mod-zh{color:var(--ink-3);font-size:13px;font-family:var(--serif);margin-top:2px}[data-aicert] .syl-mod-prog{align-items:center;gap:10px;width:200px;display:flex}[data-aicert] .syl-mod-bar{background:var(--bg-sunk);border-radius:999px;flex:1;height:5px;overflow:hidden}[data-aicert] .syl-mod-bar span{background:var(--clay);height:100%;display:block}[data-aicert] .syl-mod.done .syl-mod-bar span{background:var(--success)}[data-aicert] .syl-mod-pct{font-family:var(--mono);color:var(--ink-2);text-align:right;width:36px;font-size:12px}[data-aicert] .syl-mod-cta{align-items:center;gap:8px;display:flex}[data-aicert] .syl-mod-items{border-top:1px solid var(--line);background:var(--bg-sunk);padding:0 22px 18px}[data-aicert] .syl-mod-i{border-bottom:1px dashed var(--line);grid-template-columns:24px 1fr 80px 80px;align-items:center;gap:14px;padding:10px 8px;font-size:14px;display:grid}[data-aicert] .syl-mod-i:last-child{border-bottom:0}[data-aicert] .syl-mod-i-ic{border:1.5px solid var(--ink-4);border-radius:50%;place-items:center;width:18px;height:18px;display:grid}[data-aicert] .syl-mod-i-ic.done{background:var(--success);border-color:var(--success);color:#fff}[data-aicert] .syl-mod-i-ic.active{border-color:var(--clay);background:var(--clay);color:#fff}[data-aicert] .syl-mod-i-t{color:var(--ink-2)}[data-aicert] .syl-mod-i-m{font-family:var(--mono);color:var(--ink-3);text-align:right;font-size:12px}[data-aicert] .syl-mod-i-act{color:var(--clay-deep);cursor:pointer;text-align:right;font-size:12px;font-weight:500}[data-aicert] .syl-mod-locked{color:var(--ink-3);font-size:12px}[data-aicert] .page-head{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:18px;display:flex}[data-aicert] .page-eyebrow{color:var(--ink-3);font-size:13px}[data-aicert] .src{max-width:1080px;margin:0 auto}[data-aicert] .src-list{flex-direction:column;gap:10px;display:flex}[data-aicert] .src-row{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-md);grid-template-columns:48px 1fr auto auto auto;align-items:center;gap:18px;padding:16px 20px;display:grid}[data-aicert] .src-row:hover{border-color:var(--line-strong)}[data-aicert] .src-ic{background:var(--clay-wash);width:36px;height:36px;color:var(--clay-deep);font-family:var(--mono);border-radius:8px;place-items:center;font-size:11px;font-weight:600;display:grid}[data-aicert] .src-name{font-size:14px;font-weight:500}[data-aicert] .src-meta{color:var(--ink-3);margin-top:2px;font-size:12px}[data-aicert] .src-tag{color:var(--moss);font-size:11px;font-weight:600;font-family:var(--mono);background:#deead3;border-radius:999px;padding:3px 10px}[data-aicert] .src-pages{font-family:var(--mono);color:var(--ink-3);font-size:12px}[data-aicert] .src-add{background:var(--clay-wash);border:1.5px dashed var(--clay-soft);border-radius:var(--r-md);cursor:pointer;align-items:center;gap:14px;margin-bottom:18px;padding:24px;display:flex}[data-aicert] .src-add:hover{border-color:var(--clay)}[data-aicert] .src-add-ic{color:var(--clay-deep)}[data-aicert] .src-add-t{font-size:14px;font-weight:500}[data-aicert] .src-add-d{color:var(--ink-3);margin-top:2px;font-size:12px}[data-aicert] .adm{max-width:1280px;margin:0 auto}[data-aicert] .adm-h1{font-family:var(--serif);letter-spacing:-.022em;margin:0;font-size:38px;font-weight:500;line-height:1.1}[data-aicert] .adm-tabs{border-bottom:1px solid var(--line);gap:2px;margin:24px 0;display:flex}[data-aicert] .adm-tab{cursor:pointer;font:inherit;color:var(--ink-2);background:0 0;border:0;border-bottom:2px solid #0000;align-items:center;gap:8px;margin-bottom:-1px;padding:12px 18px;font-size:14px;display:inline-flex;position:relative}[data-aicert] .adm-tab.on{color:var(--ink);border-bottom-color:var(--clay);font-weight:500}[data-aicert] .adm-stats{grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:22px;display:grid}[data-aicert] .adm-stat{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;position:relative}[data-aicert] .adm-stat-icon{background:var(--clay-wash);width:36px;height:36px;color:var(--clay-deep);border-radius:10px;place-items:center;margin-bottom:14px;display:grid}[data-aicert] .adm-stat-v{font-family:var(--serif);letter-spacing:-.02em;font-size:32px;font-weight:500;line-height:1}[data-aicert] .adm-stat-l{color:var(--ink-3);margin-top:4px;font-size:12px}[data-aicert] .adm-stat-d{font-size:11px;font-family:var(--mono);color:var(--moss);background:#dce8d4;border-radius:6px;padding:2px 8px;position:absolute;top:22px;right:22px}[data-aicert] .tbl{border-collapse:collapse;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);width:100%;font-size:13px;overflow:hidden}[data-aicert] .tbl thead th{text-align:left;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-3);background:var(--bg-sunk);border-bottom:1px solid var(--line);padding:12px 22px;font-size:11px;font-weight:600}[data-aicert] .tbl tbody td{border-bottom:1px solid var(--line);vertical-align:middle;padding:14px 22px}[data-aicert] .tbl tbody tr:last-child td{border-bottom:0}[data-aicert] .tbl tbody tr:hover{background:var(--bg-sunk)}[data-aicert] .adm-head{margin-bottom:8px}[data-aicert] .adm-cohort-name{font-family:var(--serif);font-size:15px}[data-aicert] .adm-prog{align-items:center;gap:10px;display:flex}[data-aicert] .adm-prog-bar{background:var(--bg-sunk);border-radius:999px;width:120px;height:6px;overflow:hidden}[data-aicert] .adm-prog-fill{background:var(--clay);height:100%}[data-aicert] .adm-prog-pct{font-size:12px}[data-aicert] .adm-cohort-open{padding:5px 10px;font-size:12px}[data-aicert] .wiz-stepper.compact{flex-wrap:wrap;gap:4px 0}[data-aicert] .wiz-stepper.compact .wiz-step-l{font-size:12px}[data-aicert] .wiz-stepper.compact .wiz-line{width:28px;margin:0 6px}[data-aicert] .wiz-stepper.compact .wiz-step-num{width:26px;height:26px;font-size:12px}[data-aicert] .tree-mod.off{opacity:.55}[data-aicert] .tree-mod.expanded .tree-mod-h{background:var(--bg-elev);border-bottom:1px solid var(--line)}[data-aicert] .tree-pages{font-family:var(--mono);color:var(--ink-3);background:var(--bg-sunk);border-radius:4px;margin-right:6px;padding:2px 6px;font-size:11px}[data-aicert] .tree-mod-chev{color:var(--ink-3);transition:transform .15s}[data-aicert] .tree-mod.expanded .tree-mod-chev{transform:rotate(180deg)}[data-aicert] .tree-kp{background:var(--bg-elev);border-top:1px solid var(--line);padding:14px 14px 14px 50px}[data-aicert] .tree-kp-h{text-transform:uppercase;letter-spacing:.06em;color:var(--ink-3);margin-bottom:8px;font-size:11px;font-weight:600}[data-aicert] .tree-kp-list{flex-direction:column;gap:6px;display:flex}[data-aicert] .tree-kp-i{color:var(--ink-2);align-items:flex-start;gap:10px;font-size:13px;line-height:1.45;display:flex}[data-aicert] .tree-kp-i:before{content:"";background:var(--clay);border-radius:50%;flex-shrink:0;width:5px;height:5px;margin-top:8px}[data-aicert] .merge-pop{background:var(--paper);border:1px solid var(--line);box-shadow:var(--shadow-md);z-index:50;border-radius:8px;min-width:240px;padding:6px;position:absolute;top:calc(100% + 4px);right:0}[data-aicert] .merge-pop-h{color:var(--ink-3);text-transform:uppercase;letter-spacing:.06em;padding:6px 10px;font-size:11px}[data-aicert] .merge-pop button{text-align:left;width:100%;font:inherit;color:var(--ink);cursor:pointer;background:0 0;border:0;border-radius:6px;padding:8px 10px;font-size:13px;display:block}[data-aicert] .merge-pop button:hover{background:var(--bg-elev)}[data-aicert] .tree-act-wrap{gap:6px;display:flex;position:relative}[data-aicert] .ft-list{flex-direction:column;gap:10px;margin-top:18px;display:flex}[data-aicert] .ft-row{background:var(--bg);border:1px solid var(--line);border-radius:var(--r-md);grid-template-columns:auto 1fr auto auto auto;align-items:center;gap:14px;padding:14px 16px;display:grid}[data-aicert] .ft-row.off{opacity:.5;background:var(--bg-sunk)}[data-aicert] .ft-row-n{font-family:var(--mono);color:var(--ink-3);font-size:11px}[data-aicert] .ft-row-t{font-family:var(--serif);font-size:14px;font-weight:500}[data-aicert] .ft-row-zh{color:var(--ink-3);font-size:11px}[data-aicert] .ft-stepper{background:var(--bg-sunk);border-radius:6px;align-items:center;gap:0;padding:2px;display:flex}[data-aicert] .ft-stepper button{cursor:pointer;width:24px;height:24px;font:inherit;color:var(--ink-2);background:0 0;border:0;border-radius:4px}[data-aicert] .ft-stepper button:hover{background:var(--paper)}[data-aicert] .ft-stepper-v{font-family:var(--mono);text-align:center;width:32px;font-size:12px}[data-aicert] .ft-toggle{background:var(--bg-sunk);border:1px solid var(--line);cursor:pointer;border-radius:999px;width:36px;height:20px;transition:all .15s;position:relative}[data-aicert] .ft-toggle.on{background:var(--clay);border-color:var(--clay)}[data-aicert] .ft-toggle:after{content:"";background:#fff;border-radius:50%;width:16px;height:16px;transition:all .15s;position:absolute;top:1px;left:1px;box-shadow:0 1px 2px #0003}[data-aicert] .ft-toggle.on:after{left:17px}[data-aicert] .ft-summary{color:var(--ink-3);font-size:12px;font-family:var(--mono);border-top:1px dashed var(--line);justify-content:flex-end;gap:14px;margin-top:14px;padding-top:14px;display:flex}[data-aicert] .ft-summary strong{color:var(--ink);font-family:var(--serif);font-size:14px;font-weight:500}[data-aicert] .build-head{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}[data-aicert] .build-actions{gap:8px;display:flex}[data-aicert] .build-mod-list{flex-direction:column;gap:8px;margin-top:18px;display:flex}[data-aicert] .build-mod{background:var(--bg);border:1px solid var(--line);border-radius:var(--r-md);grid-template-columns:auto 1fr auto auto;align-items:center;gap:12px;padding:12px 14px;display:grid}[data-aicert] .build-mod-icon{place-items:center;width:18px;height:18px;display:grid}[data-aicert] .build-mod-icon.done{color:var(--success)}[data-aicert] .build-mod-icon.err{color:var(--error)}[data-aicert] .build-mod.err{border-color:var(--clay-soft);background:var(--clay-wash)}[data-aicert] .build-mod-bar{background:var(--bg-sunk);border-radius:999px;width:100px;height:4px;overflow:hidden}[data-aicert] .build-mod-bar>div{background:var(--clay);height:100%;transition:width .3s}[data-aicert] .build-mod-bar.done>div{background:var(--success)}[data-aicert] .build-mod-meta{font-family:var(--mono);color:var(--ink-3);text-align:right;min-width:60px;font-size:11px}[data-aicert] .build-retry{border:1px solid var(--clay-soft);background:var(--paper);color:var(--clay-deep);cursor:pointer;border-radius:6px;padding:4px 10px;font-size:11px}[data-aicert] .build-mini-orb{background:linear-gradient(135deg, var(--clay), var(--plum));border-radius:50%;width:36px;height:36px;animation:2s infinite aicert-pulse}[data-aicert] .pv-head{justify-content:space-between;align-items:center;gap:14px;margin-bottom:18px;display:flex}[data-aicert] .pv-progress{gap:6px;display:flex}[data-aicert] .pv-dot{background:var(--bg-sunk);border-radius:999px;width:30px;height:4px}[data-aicert] .pv-dot.done{background:var(--success)}[data-aicert] .pv-dot.now{background:var(--clay)}[data-aicert] .pv-card{background:var(--bg);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px}[data-aicert] .pv-meta{color:var(--ink-3);font-size:11px;font-family:var(--mono);gap:8px;margin-bottom:14px;display:flex}[data-aicert] .pv-q{font-family:var(--serif);margin:0 0 16px;font-size:18px;font-weight:500;line-height:1.45}[data-aicert] .pv-choices{flex-direction:column;gap:8px;margin-bottom:18px;display:flex}[data-aicert] .pv-choice{border:1px solid var(--line);background:var(--paper);border-radius:8px;align-items:flex-start;gap:10px;padding:10px 12px;font-size:14px;display:flex}[data-aicert] .pv-choice.correct{border-color:var(--success);background:#658f6214}[data-aicert] .pv-choice-l{font-family:var(--mono);color:var(--ink-3);flex-shrink:0;width:14px;margin-top:2px;font-size:11px}[data-aicert] .pv-rationale{color:var(--ink-2);background:var(--bg-elev);border-left:2px solid var(--clay);border-radius:0 6px 6px 0;padding:10px 14px;font-size:13px;line-height:1.55}[data-aicert] .pv-rationale strong{color:var(--clay-deep)}[data-aicert] .pv-foot-row{justify-content:space-between;align-items:center;gap:12px;margin-top:18px;display:flex}[data-aicert] .pv-judge{gap:6px;display:flex}[data-aicert] .pv-judge button{border:1px solid var(--line);background:var(--paper);font:inherit;color:var(--ink-2);cursor:pointer;border-radius:6px;padding:6px 12px;font-size:12px}[data-aicert] .pv-judge button:hover{border-color:var(--ink-3)}[data-aicert] .pv-judge button.bad{color:var(--clay-deep);border-color:var(--clay-soft)}[data-aicert] .pv-judge button.bad:hover{background:var(--clay-wash)}[data-aicert] .pub-list{flex-direction:column;gap:10px;margin-top:18px;display:flex}[data-aicert] .pub-opt{border:1.5px solid var(--line);border-radius:var(--r-md);background:var(--bg);cursor:pointer;gap:14px;padding:18px;transition:all .15s;display:flex}[data-aicert] .pub-opt:hover{border-color:var(--ink-3)}[data-aicert] .pub-opt.on{border-color:var(--clay);background:var(--clay-wash)}[data-aicert] .pub-opt-radio{border:1.5px solid var(--line-strong);background:var(--paper);border-radius:50%;flex-shrink:0;place-items:center;width:18px;height:18px;margin-top:2px;display:grid}[data-aicert] .pub-opt.on .pub-opt-radio{border-color:var(--clay);background:var(--clay)}[data-aicert] .pub-opt.on .pub-opt-radio:after{content:"";background:#fff;border-radius:50%;width:8px;height:8px}[data-aicert] .pub-opt-icon{font-size:20px}[data-aicert] .pub-opt-body{flex:1}[data-aicert] .pub-opt-t{font-family:var(--serif);margin:0 0 4px;font-size:16px;font-weight:500}[data-aicert] .pub-opt-d{color:var(--ink-2);font-size:13px;line-height:1.5}[data-aicert] .pub-opt-tag{font-family:var(--mono);text-transform:uppercase;letter-spacing:.06em;color:var(--ink-3);margin-top:6px;font-size:10px;display:inline-block}@media (max-width:920px){[data-aicert] .hero-grid{grid-template-columns:1fr}[data-aicert] .stack{display:none}[data-aicert] .opts,[data-aicert] .tut{grid-template-columns:1fr}}