:root{--blue:#0087c9;--blue-dark:#005f8f;--ink:#0b2237;--muted:#5a7184;--bg:#f6fafd;--card:#ffffff;--line:#dcebf3}*{box-sizing:border-box}body{margin:0;font-family:ui-sans-system,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg)}main{max-width:1120px;margin:0 auto;padding:0 20px 48px}.site-header{display:flex;justify-content:space-between;align-items:center;padding:18px 0 6px}.logo{height:44px;width:auto}.lang-toggle{display:flex;border:1px solid var(--line);border-radius:999px;overflow:hidden;background:#fff}.lang-toggle button{border:0;background:transparent;padding:8px 16px;cursor:pointer;font-weight:600;color:var(--muted)}.lang-toggle button.on{background:var(--blue);color:#fff}.hero{text-align:left;padding:28px 0 8px;max-width:720px}.badge{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.04em;color:var(--blue-dark);background:#e3f2fa;padding:5px 12px;border-radius:999px;margin:0 0 14px}.hero h1{font-size:44px;line-height:1.08;margin:0 0 14px}.hero .sub{font-size:18px;line-height:1.55;color:var(--muted);margin:0}.demo{display:grid;grid-template-columns:1fr 420px;grid-gap:36px;gap:36px;align-items:start;margin-top:28px}@media (max-width:900px){.demo{grid-template-columns:1fr}.hero h1{font-size:34px}}.demo-copy p{font-size:16px;line-height:1.6;color:var(--ink)}.owner-note{border-left:3px solid var(--blue);padding:8px 14px;background:#eef7fc;border-radius:0 8px 8px 0}.demo-copy h2{font-size:22px;margin:28px 0 12px}.steps{display:grid;grid-gap:12px;gap:12px}.step{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 16px}.step h3{margin:0 0 4px;font-size:16px}.step p{margin:0;font-size:15px}.pricing p,.step p{color:var(--muted)}.chat-card{background:var(--card);border:1px solid var(--line);border-radius:16px;box-shadow:0 18px 40px rgba(6,60,92,.12);display:flex;flex-direction:column;overflow:hidden;position:-webkit-sticky;position:sticky;top:16px}@media (max-width:900px){.chat-card{position:static}}.chat-head{display:flex;align-items:center;gap:10px;padding:12px 14px;border-bottom:1px solid var(--line);background:#fbfdff}.chat-head strong{display:block;font-size:15px}.chat-head span{display:block;font-size:12px;color:var(--muted)}.live-dot{margin-left:auto;width:10px;height:10px;border-radius:50%;background:#22b573}.chat-body{height:380px;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:8px;background:#fdfefe}.msg{max-width:85%;padding:9px 12px;border-radius:14px;font-size:14.5px;line-height:1.45;white-space:pre-wrap}.msg.bot{background:#eef4f8;align-self:flex-start;border-bottom-left-radius:4px}.msg.user{background:var(--blue);color:#fff;align-self:flex-end;border-bottom-right-radius:4px}.msg.typing{color:var(--muted);letter-spacing:2px}.lead-saved{align-self:center;font-size:13px;font-weight:600;color:#0d7a4a;background:#e6f7ee;border:1px solid #bfe9d2;padding:7px 12px;border-radius:999px}.chips{display:flex;flex-wrap:wrap;gap:6px;padding:10px 12px 0}.chips button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:6px 11px;font-size:13px;cursor:pointer;color:var(--blue-dark)}.chips button:hover{border-color:var(--blue)}.chips button:disabled{opacity:.5;cursor:default}.chat-input{display:flex;gap:8px;padding:12px}.chat-input input{flex:1 1;border:1px solid var(--line);border-radius:10px;padding:11px 12px;font-size:15px;outline:none}.chat-input input:focus{border-color:var(--blue)}.chat-input button{background:var(--blue);color:#fff;border:0;border-radius:10px;padding:0 18px;font-weight:700;cursor:pointer}.chat-input button:disabled{opacity:.6}footer{margin-top:44px;color:var(--muted);font-size:14px;text-align:center}