.qch-landing{--orange:#ff6b00;--orange-soft:#ff6b001f;--ink:#0f172a;--muted:#64748b;--muted2:#475569;--surface:#fff;--line:#0f172a14;--border-strong:#0f172a24;--radius:20px;--radius-sm:12px;--font:"Plus Jakarta Sans",system-ui,sans-serif}@media (prefers-color-scheme:dark){.qch-landing{--ink:#f8fafc;--muted:#94a3b8;--muted2:#64748b;--surface:#0f1419;--line:#f8fafc14;--border-strong:#f8fafc24;--orange-soft:#ff6b002e}}.qch-landing *{box-sizing:border-box}.qch-landing.is-root{background:var(--surface);color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased;margin:0;line-height:1.6}.qch-landing .bg-mesh{background:radial-gradient(900px 500px at 85% -5%,#ff6b0026,transparent 55%),radial-gradient(700px 400px at 0 30%,#6366f11f,transparent 50%),var(--surface);min-height:100vh}.qch-landing .wrap{max-width:1120px;margin:0 auto;padding:0 20px 80px}.qch-landing header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;padding:20px 0 48px;display:flex}.qch-landing .logo{color:inherit;align-items:center;line-height:0;text-decoration:none;display:flex}.qch-landing .logo-img{-o-object-fit:contain;object-fit:contain;border-radius:14px;width:auto;max-width:min(200px,42vw);height:52px;display:block;box-shadow:0 10px 32px #ff6b0047}.qch-landing nav{flex-wrap:wrap;align-items:center;gap:10px 20px;display:flex}.qch-landing nav a{color:var(--muted);font-size:.9rem;font-weight:600;text-decoration:none}.qch-landing nav a:hover{color:var(--ink)}.qch-landing .btn{cursor:pointer;border:none;border-radius:999px;justify-content:center;align-items:center;padding:12px 22px;font-family:inherit;font-size:.9rem;font-weight:700;text-decoration:none;transition:transform .15s,filter .15s;display:inline-flex}.qch-landing .btn:active{transform:scale(.98)}.qch-landing .btn-primary{background:linear-gradient(135deg,var(--orange),#ea580c);color:#fff;box-shadow:0 12px 32px #ff6b0059}.qch-landing .btn-primary:hover{filter:brightness(1.05)}.qch-landing .btn-ghost{border:1px solid var(--line);color:var(--ink);background:0 0}.qch-landing .hero{grid-template-columns:1fr 1fr;align-items:center;gap:48px;padding-bottom:72px;display:grid}@media (max-width:900px){.qch-landing .hero{grid-template-columns:1fr;gap:40px}}.qch-landing .hero h1{letter-spacing:-.04em;margin:0 0 16px;font-size:clamp(2.1rem,4.5vw,3.1rem);font-weight:800;line-height:1.1}.qch-landing .hero h1 span{background:linear-gradient(135deg,#6366f1,var(--orange));color:#0000;-webkit-background-clip:text;background-clip:text}.qch-landing .lead{color:var(--muted);max-width:34ch;margin:0 0 28px;font-size:1.125rem}.qch-landing .hero-cta{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.qch-landing .micro{color:var(--muted);margin-top:18px;font-size:.8125rem}.qch-landing .mock{background:linear-gradient(145deg,#6366f159,#ff6b0059);border-radius:28px;padding:2px;position:relative;box-shadow:0 40px 80px #0f172a1f}@media (prefers-color-scheme:dark){.qch-landing .mock{box-shadow:0 40px 80px #00000073}}.qch-landing .mock-inner{aspect-ratio:9/16;background:var(--surface);border:1px solid var(--line);border-radius:26px;flex-direction:column;max-height:520px;margin:0 auto;display:flex;overflow:hidden}.qch-landing .mock-bar{border-bottom:1px solid var(--line);color:var(--muted);background:#0f172a0a;align-items:center;height:44px;padding:0 14px;font-size:.75rem;font-weight:700;display:flex}@media (prefers-color-scheme:dark){.qch-landing .mock-bar{background:#ffffff0a}}.qch-landing .mock-body{flex-direction:column;flex:1;gap:12px;padding:20px;display:flex}.qch-landing .chip{background:var(--orange-soft);color:var(--orange);border-radius:999px;align-self:flex-start;padding:6px 12px;font-size:.75rem;font-weight:600}.qch-landing .mock-line{background:var(--line);border-radius:8px;max-width:100%;height:12px}.qch-landing .mock-line.short{width:55%}.qch-landing .mock-card{border:1px solid var(--line);background:#ff6b000f;border-radius:16px;margin-top:auto;padding:16px}.qch-landing .mock-card strong{margin-bottom:6px;font-size:.9rem;display:block}.qch-landing .mock-card span{color:var(--muted);font-size:.8rem}.qch-landing section{border-top:1px solid var(--line);padding:56px 0}.qch-landing .section-head{max-width:560px;margin-bottom:40px}.qch-landing .section-head h2{letter-spacing:-.03em;margin:0 0 12px;font-size:clamp(1.6rem,3vw,2rem);font-weight:800}.qch-landing .section-head p{color:var(--muted);margin:0;font-size:1.05rem}.qch-landing .grid-3{grid-template-columns:repeat(3,1fr);gap:20px;display:grid}@media (max-width:800px){.qch-landing .grid-3{grid-template-columns:1fr}}.qch-landing .card{border:1px solid var(--line);border-radius:var(--radius);background:#fff6;padding:24px}@media (prefers-color-scheme:dark){.qch-landing .card{background:#ffffff08}}.qch-landing .card-icon{background:var(--orange-soft);border-radius:14px;justify-content:center;align-items:center;width:44px;height:44px;margin-bottom:16px;font-size:1.25rem;display:flex}.qch-landing .card h3{margin:0 0 8px;font-size:1.05rem;font-weight:700}.qch-landing .card p{color:var(--muted);margin:0;font-size:.9375rem}.qch-landing .steps{counter-reset:step;grid-template-columns:repeat(3,1fr);gap:24px;display:grid}@media (max-width:800px){.qch-landing .steps{grid-template-columns:1fr}}.qch-landing .step{padding-left:52px;position:relative}.qch-landing .step:before{background:linear-gradient(135deg,#6366f1,var(--orange));color:#fff;content:counter(step);counter-increment:step;border-radius:12px;justify-content:center;align-items:center;width:36px;height:36px;font-size:.9rem;font-weight:800;display:flex;position:absolute;top:0;left:0}.qch-landing .step h3{margin:0 0 8px;font-size:1.05rem}.qch-landing .step p{color:var(--muted);margin:0;font-size:.9375rem}.qch-landing .cta-band{background:linear-gradient(135deg,#6366f11f,var(--orange-soft));border:1px solid var(--line);text-align:center;border-radius:28px;margin-top:24px;padding:48px 32px}.qch-landing .cta-band h2{margin:0 0 12px;font-size:clamp(1.5rem,3vw,1.85rem);font-weight:800}.qch-landing .cta-band p{color:var(--muted);max-width:480px;margin:0 auto 24px}.qch-landing footer{border-top:1px solid var(--line);color:var(--muted);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;padding:40px 0 24px;font-size:.875rem;display:flex}.qch-landing footer a{color:var(--muted);font-weight:600;text-decoration:none}.qch-landing footer a:hover{color:var(--ink)}.qch-landing .sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.qch-landing .subscribe-form{flex-wrap:wrap;justify-content:center;align-items:stretch;gap:10px;max-width:480px;margin:0 auto 12px;display:flex}.qch-landing .subscribe-form input[type=email]{border:1px solid var(--border-strong);border-radius:var(--radius-sm);color:var(--ink);background:#0f172aa6;flex:200px;min-width:0;padding:12px 14px;font-family:inherit;font-size:.9375rem}@media (prefers-color-scheme:dark){.qch-landing .subscribe-form input[type=email]{background:#ffffff0f}}.qch-landing .subscribe-form .btn{flex:none}.qch-landing .hp{opacity:0;width:1px;height:1px;position:absolute;left:-9999px}.qch-landing .subscribe-msg{color:var(--muted);min-height:1.4em;margin:0;font-size:.875rem}.qch-landing .subscribe-msg.ok{color:#22c55e}.qch-landing .subscribe-msg.err{color:#f87171}.qch-landing .subscribe-note{color:var(--muted2);max-width:420px;margin:12px auto 0;font-size:.75rem}