#fbchat*{box-sizing:border-box;margin:0;padding:0}
#fbchat{position:fixed;bottom:20px;right:20px;z-index:99999;font-family:"Microsoft YaHei",sans-serif;font-size:14px}
#fbchat .chat-btn{width:60px;height:60px;border-radius:50%;background:linear-gradient(135deg,#1a7a5c,#0e5a3c);color:#fff;border:none;cursor:pointer;box-shadow:0 4px 20px rgba(26,122,92,.4);display:flex;align-items:center;justify-content:center;transition:transform .3s;position:relative}
#fbchat .chat-btn:hover{transform:scale(1.1)}
#fbchat .chat-btn svg{width:28px;height:28px;fill:#fff}
#fbchat .chat-btn .badge{position:absolute;top:-4px;right:-4px;background:#e74c3c;color:#fff;font-size:11px;min-width:20px;height:20px;border-radius:10px;display:none;align-items:center;justify-content:center;padding:0 5px;font-weight:700;border:2px solid #fff}
#fbchat .chat-btn .badge.show{display:flex}
#fbchat .chat-win{display:none;width:370px;height:520px;background:#fff;border-radius:16px;box-shadow:0 8px 40px rgba(0,0,0,.15);overflow:hidden;flex-direction:column;position:absolute;bottom:80px;right:0;animation:fbUp .3s}
#fbchat .chat-win.open{display:flex}
@keyframes fbUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
#fbchat .chat-hd{background:linear-gradient(135deg,#1a7a5c,#0e5a3c);color:#fff;padding:12px 16px;display:flex;align-items:center;justify-content:space-between}
#fbchat .chat-hd .hd-info{display:flex;align-items:center;gap:12px}
#fbchat .chat-hd .avatar{width:40px;height:40px;background:rgba(255,255,255,.2);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px}
#fbchat .chat-hd h3{font-size:15px;margin:0;font-weight:600}
#fbchat .chat-hd span{font-size:11px;opacity:.85}
#fbchat .chat-close{background:none;border:none;color:#fff;font-size:24px;cursor:pointer;padding:0 0 4px 8px;line-height:1}
#fbchat .chat-msgs{flex:1;overflow-y:auto;padding:12px 14px;display:flex;flex-direction:column;gap:8px;background:#f6faf8}
#fbchat .msg .sender{font-size:11px;color:#666;margin-bottom:2px}
#fbchat .msg.user{text-align:right}
#fbchat .msg.user>div:last-child{display:inline-block;max-width:80%;padding:8px 14px;border-radius:18px;border-bottom-right-radius:4px;background:#1a7a5c;color:#fff;word-break:break-word;font-size:14px;line-height:1.5}
#fbchat .msg.admin>div:last-child{display:inline-block;max-width:80%;padding:8px 14px;border-radius:18px;border-bottom-left-radius:4px;background:#fff;color:#333;word-break:break-word;font-size:14px;line-height:1.5;box-shadow:0 1px 3px rgba(0,0,0,.08)}
#fbchat .msg.system{text-align:center}
#fbchat .msg.system>span{display:inline-block;background:#e8f4ef;color:#555;font-size:12px;padding:4px 12px;border-radius:10px}
#fbchat .msg .meta{font-size:10px;color:#aaa;margin-top:2px}
#fbchat .quick-replies{display:none;padding:8px 12px;gap:6px;flex-wrap:wrap;border-top:1px solid #eee;background:#fff}
#fbchat .quick-replies button{background:#e8f4ef;color:#1a7a5c;border:1px solid #bcd8cc;padding:6px 14px;border-radius:16px;font-size:12px;cursor:pointer;white-space:nowrap;transition:all .2s}
#fbchat .quick-replies button:hover{background:#1a7a5c;color:#fff}
#fbchat .chat-input{display:none;padding:8px 12px;border-top:1px solid #eee;gap:8px;background:#fff}
#fbchat .chat-input input{flex:1;border:1px solid #d4e8dd;border-radius:20px;padding:8px 16px;font-size:14px;outline:none}
#fbchat .chat-input input:focus{border-color:#1a7a5c}
#fbchat .chat-input button{background:#1a7a5c;border:none;width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer}
#fbchat .chat-input button svg{width:18px;height:18px;fill:#fff}
#fbchat .name-form{text-align:center;padding:30px 10px}
#fbchat .name-form p{font-size:15px;color:#555;margin-bottom:16px}
#fbchat .name-form input{width:100%;max-width:220px;border:1px solid #d4e8dd;border-radius:20px;padding:10px 16px;font-size:14px;text-align:center;outline:none;margin:0 auto 12px;display:block}
#fbchat .name-form button{background:#1a7a5c;color:#fff;border:none;padding:10px 36px;border-radius:20px;font-size:14px;cursor:pointer}
#fbchat .name-form button.skip{background:none;color:#999;font-size:12px;display:block;margin:8px auto 0}
@media(max-width:420px){#fbchat{bottom:10px;right:10px}#fbchat .chat-win{width:calc(100vw-20px);height:calc(100vh-120px);bottom:70px;border-radius:12px}#fbchat .chat-btn{width:52px;height:52px}}