.ai-tx{--ink: oklch(22% .05 240);--ink-soft: oklch(40% .03 245);--ink-faint: oklch(55% .02 250);--paper: oklch(97.8% .005 264);--paper-2: oklch(100% 0 0);--paper-edge: oklch(95.5% .025 270);--line: oklch(90% .02 260);--line-strong: oklch(80% .03 262);--accent: oklch(55% .2 270);--accent-deep: oklch(45% .18 268);--accent-on-dark: oklch(74% .14 286);--cta: oklch(36% .14 258);--cta-hover: oklch(30% .14 258);--dusk-1: oklch(20% .04 255);--dusk-2: oklch(22% .05 268);--dusk-3: oklch(24% .06 282);--on-dark: oklch(96% .005 264);--on-dark-soft: oklch(72% .02 262);--maxw: 1140px;--r: 12px;--sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--serif: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;font-family:var(--sans);color:var(--ink-soft);background:var(--paper);line-height:1.55;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;min-height:100vh}.ai-tx *,.ai-tx *:before,.ai-tx *:after{box-sizing:border-box}.ai-tx 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a{color:var(--ink-soft);text-decoration:none;font-size:.93rem;font-weight:500;transition:color .15s}.ai-tx .nav-links a:hover{color:var(--ink)}.ai-tx .nav-cta{display:flex;align-items:center;gap:14px}.ai-tx .nav-cta .btn{padding:10px 18px;font-size:.9rem}.ai-tx .lang-switch{position:relative}.ai-tx .lang-switch-btn{display:inline-flex;align-items:center;gap:6px;font-family:var(--sans);font-weight:500;font-size:.82rem;color:var(--ink-soft);background:transparent;border:1px solid var(--line-strong);border-radius:999px;padding:8px 12px;cursor:pointer;transition:border-color .15s,color .15s,background .15s;white-space:nowrap}.ai-tx .lang-switch-btn:hover{border-color:var(--accent);color:var(--ink);background:#4761e40d}.ai-tx .lang-switch-chevron{width:12px;height:12px;transition:transform .18s ease}.ai-tx .lang-switch-chevron.open{transform:rotate(180deg)}.ai-tx .lang-switch-menu{position:absolute;right:0;top:calc(100% + 6px);min-width:148px;background:var(--paper-2);border:1px solid 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.note{margin-top:22px;border-left:3px solid var(--accent);background:#4761e40d;border-radius:8px;padding:20px 24px}.ai-tx #how .s-head{max-width:none}.ai-tx .note p{font-size:1rem;color:var(--ink-soft)}.ai-tx .note p+p{margin-top:10px}.ai-tx .note b{color:var(--ink);font-weight:600}.ai-tx .why h2{max-width:none}.ai-tx .why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin-top:44px}@media(max-width:760px){.ai-tx .why-grid{grid-template-columns:1fr;gap:24px}}.ai-tx .why-pt{border-top:2px solid var(--accent);padding-top:18px}.ai-tx .why-pt h3{font-size:1.12rem;margin-bottom:8px;font-family:var(--sans);font-weight:700;letter-spacing:-.015em}.ai-tx .why-pt p{font-size:.98rem}.ai-tx .quotes{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}@media(max-width:760px){.ai-tx .quotes{grid-template-columns:1fr}}.ai-tx .quote{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r);padding:32px}.ai-tx .quote 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.field{margin-bottom:16px;flex:1}.ai-tx .field label{display:block;font-size:.82rem;font-weight:600;color:var(--ink);margin-bottom:6px}.ai-tx .field input{width:100%;font-family:var(--sans);font-size:1rem;color:var(--ink);background:#fff;border:1px solid var(--line-strong);border-radius:10px;padding:12px 14px;transition:border-color .15s,box-shadow .15s}.ai-tx .field input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #4761e426}.ai-tx .form-card .btn{width:100%;justify-content:center;margin-top:4px}.ai-tx .hp{position:absolute!important;left:-9999px;width:1px;height:1px;overflow:hidden}.ai-tx .form-note{font-size:.8rem;color:var(--ink-faint);margin-top:14px;text-align:center}.ai-tx .form-error{font-size:.85rem;color:#b91c1c;margin-bottom:12px;text-align:center}.ai-tx .form-success{max-width:520px;margin:0 auto;background:var(--paper-2);border:1px solid var(--line);border-radius:16px;padding:34px;font-family:var(--serif);font-size:1.15rem;color:var(--ink);font-weight:600}.ai-tx footer{background:var(--paper);border-top:1px solid var(--line);padding:52px 0 40px}.ai-tx .foot{display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:30px}.ai-tx .foot .brand{font-size:1.2rem}.ai-tx .foot-tag{color:var(--ink-faint);font-size:.92rem;margin-top:8px;max-width:300px}.ai-tx .foot-links{display:flex;gap:40px;flex-wrap:wrap}.ai-tx .foot-links a{color:var(--ink-soft);text-decoration:none;font-size:.93rem}.ai-tx .foot-links a:hover{color:var(--ink)}.ai-tx .foot-bottom{margin-top:42px;padding-top:22px;border-top:1px solid var(--line);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;color:var(--ink-faint);font-size:.85rem}.ai-tx .reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}.ai-tx .reveal.in{opacity:1;transform:none}@media(prefers-reduced-motion:reduce){.ai-tx .reveal{opacity:1;transform:none;transition:none}}