:root{--ink:#0f172a;--muted:#475569;--soft:#64748b;--line:#e2e8f0;--bg:#ffffff;--tint:#f8fafc;--blue:#2563eb;--blue-d:#1d4ed8;--green:#16a34a}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font:16px/1.65 Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}
.container{max-width:1120px;margin:0 auto;padding:0 24px}
.nav{position:sticky;top:0;z-index:5;background:#ffffffe6;backdrop-filter:saturate(1.6) blur(10px);border-bottom:1px solid var(--line)}
.nav .container{display:flex;align-items:center;gap:28px;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink);font-size:18px}.logo img{width:30px;height:30px}.logo:hover{text-decoration:none}
.nav nav{display:flex;gap:24px;margin-left:auto;align-items:center}.nav nav a{color:var(--muted);font-size:15px}.nav nav a.btn{color:#fff}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;border-radius:10px;background:var(--blue);color:#fff;font-weight:600;font-size:15px;border:1px solid var(--blue)}
.btn:hover{background:var(--blue-d);text-decoration:none}.btn.ghost{background:#fff;color:var(--ink);border-color:var(--line)}.btn.ghost:hover{background:var(--tint)}
.btn.disabled{background:#e2e8f0;border-color:#e2e8f0;color:#64748b;pointer-events:none}
.hero{padding:80px 0 56px;background:linear-gradient(180deg,#eff6ff 0%,#fff 70%)}
.hero .container{display:grid;grid-template-columns:1fr 1.15fr;gap:48px;align-items:center}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--blue);background:#dbeafe;padding:4px 12px;border-radius:999px;margin-bottom:18px}
h1{font-size:52px;line-height:1.08;letter-spacing:-.03em;margin:0 0 20px}h2{font-size:36px;line-height:1.15;letter-spacing:-.025em;margin:0 0 14px}h3{font-size:19px;margin:0 0 6px}
.lead{font-size:19px;color:var(--muted);margin:0 0 28px}.cta{display:flex;gap:12px;flex-wrap:wrap}.note{font-size:13px;color:var(--soft);margin-top:14px}
.hero img.shot{width:100%;border-radius:14px;box-shadow:0 2px 6px #0f172a14,0 30px 70px #0f172a24;border:1px solid var(--line)}
section{padding:80px 0}section.tint{background:var(--tint);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.center{text-align:center}.sub{color:var(--muted);font-size:18px;max-width:640px;margin:0 auto 44px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px}
.card p{margin:0;color:var(--muted)}.ico{width:40px;height:40px;border-radius:10px;background:#dbeafe;color:var(--blue);display:flex;align-items:center;justify-content:center;font-weight:700;margin-bottom:14px}
.steps{counter-reset:s}.steps .card h3::before{counter-increment:s;content:counter(s);display:inline-flex;width:28px;height:28px;border-radius:50%;background:var(--blue);color:#fff;font-size:14px;align-items:center;justify-content:center;margin-right:10px}
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch;max-width:1000px;margin:0 auto}
.plan{background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px;display:flex;flex-direction:column}
.plan.best{border:2px solid var(--blue);box-shadow:0 20px 50px #2563eb1f;position:relative}.badge{position:absolute;top:-13px;left:28px;background:var(--blue);color:#fff;font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px}
.price{font-size:44px;font-weight:800;letter-spacing:-.03em;margin:10px 0 0}.price small{font-size:16px;font-weight:500;color:var(--soft)}
.plan ul{list-style:none;padding:0;margin:20px 0 26px;flex:1}.plan li{padding:6px 0 6px 26px;position:relative;color:var(--muted)}.plan li::before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:700}
.plan .btn{width:100%}.small{font-size:13px;color:var(--soft)}
.faq{max-width:780px;margin:0 auto}.faq details{border-bottom:1px solid var(--line);padding:18px 0}.faq summary{cursor:pointer;font-weight:600;font-size:17px;list-style:none;display:flex;justify-content:space-between}.faq summary::after{content:"+";color:var(--soft);font-size:22px;line-height:1}.faq details[open] summary::after{content:"–"}.faq p{color:var(--muted);margin:10px 0 0}
.band{background:var(--ink);color:#fff;border-radius:20px;padding:56px;text-align:center}.band p{color:#cbd5e1}.band .btn{background:#fff;color:var(--ink);border-color:#fff}
footer{border-top:1px solid var(--line);padding:44px 0;color:var(--soft);font-size:14px}footer .container{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px}footer h4{color:var(--ink);font-size:14px;margin:0 0 10px}footer a{color:var(--soft);display:block;margin:4px 0}
.legal{max-width:780px;margin:0 auto;padding:56px 24px 80px}.legal h1{font-size:40px}.legal h2{font-size:22px;margin:36px 0 10px;letter-spacing:-.01em}.legal p,.legal li{color:#334155}.legal .meta{color:var(--soft);font-size:14px}
.callout{background:#eff6ff;border:1px solid #bfdbfe;border-radius:12px;padding:16px 20px;color:#1e3a8a}
@media(max-width:900px){h1{font-size:40px}.hero .container,.grid3,.plans,footer .container{grid-template-columns:1fr}.nav nav a:not(.btn){display:none}.band{padding:36px 22px}section{padding:56px 0}}