:root{--ld-bg:#f6f8fb;--ld-card:#fff;--ld-text:#172033;--ld-muted:#657086;--ld-border:#dfe5ee;--ld-accent:#2457d6;--ld-soft:#eef3ff}
.ld-wrap{max-width:1180px;margin:0 auto;padding:42px 22px 64px;font-family:Arial,sans-serif;color:var(--ld-text)}
.ld-hero{text-align:center;max-width:850px;margin:0 auto 30px}.ld-badge{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;background:var(--ld-soft);padding:8px 12px;border-radius:999px;margin-bottom:14px}.ld-hero h1,.ld-chat-head h1,.ld-thanks h1{font-size:clamp(30px,4vw,52px);line-height:1.08;margin:0 0 16px}.ld-hero p,.ld-chat-head p,.ld-thanks p{font-size:18px;line-height:1.6;color:var(--ld-muted)}
.ld-start-card,.ld-chat-card,.ld-side,.ld-thanks{background:var(--ld-card);border:1px solid var(--ld-border);border-radius:18px;box-shadow:0 12px 30px rgba(20,35,70,.07)}.ld-start-card{max-width:760px;margin:0 auto;padding:28px}.ld-thanks{max-width:760px;margin:40px auto;padding:36px;text-align:center}
label{display:block;font-weight:700;margin:18px 0 8px}select,input,textarea{width:100%;box-sizing:border-box;border:1px solid #cfd7e4;border-radius:10px;padding:13px 14px;font-size:16px;background:#fff;color:#172033}textarea{resize:vertical;line-height:1.45}.ld-primary,.ld-secondary{border:0;border-radius:10px;padding:13px 18px;font-size:16px;font-weight:700;cursor:pointer}.ld-primary{background:var(--ld-accent);color:#fff;margin-top:18px}.ld-secondary{background:#eef1f6;color:#293349;margin-top:10px}.ld-primary:disabled{opacity:.6;cursor:wait}.ld-privacy{font-size:13px;color:var(--ld-muted);margin-top:12px}.ld-error{margin-top:14px;padding:12px;border-radius:10px;background:#fff1f1;color:#9a2323}.ld-link-button{display:inline-block;text-decoration:none}
.ld-conversation-wrap{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(300px,.75fr);gap:24px;align-items:start}.ld-chat-card{padding:26px}.ld-chat-head{border-bottom:1px solid var(--ld-border);padding-bottom:16px}.ld-chat-head h1{font-size:32px}.ld-messages{min-height:420px;max-height:62vh;overflow-y:auto;padding:22px 4px;display:flex;flex-direction:column;gap:14px}.ld-message{max-width:82%;padding:13px 15px;border-radius:15px;white-space:pre-wrap;line-height:1.48}.ld-message.assistant{align-self:flex-start;background:#f0f3f8}.ld-message.visitor{align-self:flex-end;background:#2457d6;color:#fff}.ld-reply-form{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:end;border-top:1px solid var(--ld-border);padding-top:16px}.ld-reply-form .ld-primary{margin:0;height:48px}.ld-side{padding:24px;position:sticky;top:20px}.ld-side h2{margin-top:0}.ld-side span{font-weight:400;color:var(--ld-muted);font-size:13px}
@media(max-width:820px){.ld-conversation-wrap{grid-template-columns:1fr}.ld-side{position:static}.ld-wrap{padding:26px 14px 48px}.ld-message{max-width:92%}.ld-reply-form{grid-template-columns:1fr}.ld-reply-form .ld-primary{width:100%}}