:root{--ink:#0f1b2d;--muted:#5b6778;--bg:#f6f7f9;--card:#fff;--brand:#f28c28;--brand-d:#d9731a;--navy:#13294b;--ok:#1f9d55;--line:#e3e7ee;--r:14px}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.55}
a{color:var(--navy)}img{max-width:100%}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
header.nav{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.95);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-weight:800;font-size:1.35rem;text-decoration:none;color:var(--navy);letter-spacing:-.5px}.logo span{color:var(--brand)}
.nav ul{display:flex;gap:22px;list-style:none;margin:0;padding:0}.nav ul a{text-decoration:none;color:var(--ink);font-weight:500}
.btn{display:inline-block;background:var(--brand);color:#fff;border:0;border-radius:999px;padding:12px 22px;font-weight:700;text-decoration:none;cursor:pointer;font-size:1rem}
.btn:hover{background:var(--brand-d)}.btn.ghost{background:transparent;color:var(--navy);border:2px solid var(--navy)}
.demo-banner{background:#fff3cd;color:#6b4e00;text-align:center;font-size:.85rem;padding:6px 12px;border-bottom:1px solid #f1d98a}
.hero{background:linear-gradient(135deg,var(--navy),#1d3f73);color:#fff;padding:72px 0 80px}
.hero .wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(2rem,4.4vw,3.2rem);line-height:1.1;margin:0 0 16px;letter-spacing:-1px}
.hero p.lead{font-size:1.15rem;color:#d7e1f2;max-width:560px}.hero .ctas{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.hero .btn.ghost{color:#fff;border-color:#fff}
.pill{display:inline-block;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);padding:4px 12px;border-radius:999px;font-size:.85rem;margin-bottom:14px}
.phone{background:#0b1220;border-radius:34px;padding:14px;box-shadow:0 30px 60px rgba(0,0,0,.35);max-width:330px;margin-left:auto}
.phone .screen{background:#eef1f6;border-radius:24px;padding:14px;min-height:360px;display:flex;flex-direction:column;gap:8px;color:var(--ink);font-size:.9rem}
.bubble{padding:9px 12px;border-radius:16px;max-width:85%}.bubble.in{background:#fff;align-self:flex-start}.bubble.out{background:#2f7bf6;color:#fff;align-self:flex-end}
.bubble.sys{background:transparent;color:var(--muted);font-size:.75rem;align-self:center;text-align:center}
section{padding:72px 0}section h2{font-size:clamp(1.6rem,3vw,2.2rem);margin:0 0 10px;letter-spacing:-.5px}
.sub{color:var(--muted);max-width:720px;margin:0 0 32px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.stat{font-size:2rem;font-weight:800;color:var(--brand-d)}.src{font-size:.78rem;color:var(--muted)}
.calc label{display:block;font-weight:600;margin:12px 0 4px}.calc input{width:100%;padding:10px;border:1px solid var(--line);border-radius:10px;font-size:1rem}
.calc .out{margin-top:18px;background:#fff7ef;border:1px dashed var(--brand);border-radius:12px;padding:16px;font-size:1.05rem}
.steps .num{width:38px;height:38px;border-radius:50%;background:var(--brand);color:#fff;display:grid;place-items:center;font-weight:800;margin-bottom:10px}
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.features .card{padding:18px}.features h3{font-size:1.02rem;margin:6px 0}
.features p{margin:0;color:var(--muted);font-size:.92rem}.ico{font-size:1.5rem}
.pricing{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:860px}
.plan{position:relative}.plan.best{border:2px solid var(--brand);box-shadow:0 12px 30px rgba(242,140,40,.15)}
.plan .tag{position:absolute;top:-12px;right:18px;background:var(--brand);color:#fff;font-size:.78rem;font-weight:700;padding:3px 10px;border-radius:999px}
.price{font-size:2.6rem;font-weight:800}.price small{font-size:1rem;color:var(--muted);font-weight:500}
.plan ul{padding-left:0;list-style:none}.plan li{padding:5px 0 5px 26px;position:relative}.plan li:before{content:"✓";position:absolute;left:0;color:var(--ok);font-weight:800}
.plan li.no{color:var(--muted)}.plan li.no:before{content:"–";color:var(--muted)}
.demo-wrap{display:grid;grid-template-columns:1.2fr .8fr;gap:24px}
.chat{background:#fff;border:1px solid var(--line);border-radius:var(--r);display:flex;flex-direction:column;height:560px;overflow:hidden}
.chat-head{background:var(--navy);color:#fff;padding:12px 16px;display:flex;justify-content:space-between;align-items:center}
.chat-head small{color:#c9d6ea}.chat-head button{background:transparent;border:1px solid #fff;color:#fff;border-radius:999px;padding:4px 12px;cursor:pointer}
.chat-log{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:8px;background:#eef1f6}
.msg{padding:9px 13px;border-radius:16px;max-width:82%;white-space:pre-wrap;font-size:.93rem}
.msg.bot{background:#fff;align-self:flex-start;border-bottom-left-radius:4px}.msg.user{background:#2f7bf6;color:#fff;align-self:flex-end;border-bottom-right-radius:4px}
.msg.sys{align-self:center;background:transparent;color:var(--muted);font-size:.78rem;text-align:center}.msg.typing{color:var(--muted);font-style:italic}
.chat-quick{display:flex;flex-wrap:wrap;gap:6px;padding:8px 12px;border-top:1px solid var(--line)}
.chat-quick button{border:1px solid var(--navy);background:#fff;color:var(--navy);border-radius:999px;padding:5px 11px;cursor:pointer;font-size:.85rem}
.chat-form{display:flex;border-top:1px solid var(--line)}.chat-form input{flex:1;border:0;padding:14px;font-size:1rem;outline:none}
.chat-form button{border:0;background:var(--brand);color:#fff;padding:0 20px;font-weight:700;cursor:pointer}
.lead-row{display:flex;justify-content:space-between;gap:12px;border-bottom:1px dashed var(--line);padding:8px 0;font-size:.9rem}.lead-row span{color:var(--muted)}.lead-row b{text-align:right}
details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin-bottom:10px}summary{font-weight:700;cursor:pointer}
form.audit label{display:block;font-weight:600;margin:12px 0 4px}
form.audit input,form.audit select,form.audit textarea{width:100%;padding:11px;border:1px solid var(--line);border-radius:10px;font:inherit}
form.audit .check{display:flex;gap:10px;align-items:flex-start;font-weight:400;font-size:.9rem}form.audit .check input{width:auto;margin-top:4px}
.note{font-size:.82rem;color:var(--muted)}
footer{background:#0b1626;color:#b8c4d6;padding:48px 0 30px;font-size:.88rem}footer a{color:#e6ecf5}footer h4{color:#fff;margin:0 0 8px}
footer .cols{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:28px}
.alt{background:#fff}
@media (max-width:900px){.hero .wrap,.grid2,.demo-wrap,.pricing,footer .cols{grid-template-columns:1fr}.grid3{grid-template-columns:1fr}.features{grid-template-columns:1fr 1fr}.nav ul{display:none}.phone{margin:0 auto}}
@media (max-width:520px){.features{grid-template-columns:1fr}section{padding:52px 0}}

.navr{display:flex;align-items:center;gap:14px}.navtel{font-weight:700;color:var(--ink);text-decoration:none;white-space:nowrap}@media (max-width:900px){.navtel{display:none}}