.chat-fab{position:fixed;right:18px;bottom:18px;z-index:9999}
.chat-btn{display:inline-flex;align-items:center;gap:10px;border:1px solid rgba(36,28,21,.12);background:rgba(255,255,255,.92);backdrop-filter:blur(10px);padding:12px 14px;border-radius:999px;box-shadow:0 14px 30px rgba(36,28,21,.14);cursor:pointer;font-weight:800;color:#241c15}
.chat-dot{width:10px;height:10px;border-radius:99px;background:#ffe01b;box-shadow:0 0 0 4px rgba(255,224,27,.25)}
.chat-panel{position:fixed;right:18px;bottom:72px;width:360px;max-width:calc(100vw - 36px);height:520px;max-height:calc(100vh - 120px);background:rgba(255,255,255,.98);border:1px solid rgba(36,28,21,.12);border-radius:18px;box-shadow:0 24px 60px rgba(36,28,21,.18);display:none;overflow:hidden;z-index:9999}
.chat-panel.open{display:flex;flex-direction:column}
.chat-head{padding:12px 14px;border-bottom:1px solid rgba(36,28,21,.12);display:flex;align-items:center;justify-content:space-between;gap:10px}
.chat-title{font-weight:900;letter-spacing:-0.02em}
.chat-sub{font-size:12px;color:rgba(36,28,21,.65)}
.chat-x{border:0;background:transparent;font-size:20px;line-height:1;cursor:pointer;color:rgba(36,28,21,.7)}
.chat-body{padding:12px 12px;overflow:auto;display:flex;flex-direction:column;gap:10px}
.msg{max-width:85%;padding:10px 12px;border-radius:14px;font-size:14px;line-height:1.35}
.msg.user{margin-left:auto;background:#241c15;color:#fff;border-bottom-right-radius:6px}
.msg.bot{margin-right:auto;background:rgba(36,28,21,.05);color:#241c15;border-bottom-left-radius:6px}
.chat-foot{padding:12px;border-top:1px solid rgba(36,28,21,.12);display:flex;gap:10px}
.chat-input{flex:1;border:1px solid rgba(36,28,21,.12);border-radius:14px;padding:10px 12px;font-size:14px;outline:none}
.chat-send{border:1px solid rgba(36,28,21,.12);background:#ffe01b;color:#241c15;font-weight:900;border-radius:14px;padding:10px 12px;cursor:pointer}
.chat-send:disabled{opacity:.6;cursor:not-allowed}
@media (max-width:640px){
  .chat-panel{right:12px;left:12px;bottom:76px;width:auto;height:60vh}
  .chat-fab{right:12px;bottom:12px}
}