#chat-toggle{position:fixed;right:22px;bottom:22px;width:58px;height:58px;border-radius:50%;background:#1677ff;color:#fff;display:flex;align-items:center;justify-content:center;font-size:24px;cursor:pointer;z-index:9999;box-shadow:0 10px 30px #1677ff59;transition:.25s ease}#chat-toggle:hover{transform:translateY(-3px) scale(1.05);background:#0d6efd}#chatbox{position:fixed;right:22px;bottom:92px;width:395px;height:575px;background:#fff;border-radius:22px;overflow:hidden;display:flex;flex-direction:column;z-index:9999;box-shadow:0 20px 55px #00000038;border:1px solid #e5eaf2}.chat-hidden{display:none!important}#chat-header{height:78px;background:#1877f2;color:#fff;padding:14px 18px;display:flex;align-items:center;justify-content:space-between}.chat-info{display:flex;align-items:center;gap:12px;min-width:0}.chat-avatar-head{width:46px;height:46px;border-radius:50%;background:#fff;padding:3px;position:relative;flex-shrink:0}.chat-avatar-head img{width:100%;height:100%;object-fit:cover;border-radius:50%}.online-dot{position:absolute;right:2px;bottom:3px;width:12px;height:12px;background:#21c35b;border:2px solid #fff;border-radius:50%}.chat-title-text{display:flex;flex-direction:column;min-width:0}.chat-title-text strong{font-size:16px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:260px}.chat-title-text small{font-size:12px;opacity:.9}#chat-close{width:38px;height:38px;border-radius:50%;border:none;background:#ffffff24;color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:17px;transition:.2s}#chat-close:hover{background:#ffffff40}.chat-note{padding:14px 28px 12px;text-align:center;color:#8b95a5;font-size:13px;line-height:1.45;background:#fff}#chat-body{flex:1;padding:16px 18px;overflow-y:auto;background:#fff}#chat-body::-webkit-scrollbar{width:6px}#chat-body::-webkit-scrollbar-thumb{background:#cfd7e3;border-radius:20px}.msg-user,.msg-ai{display:flex;gap:9px;margin-bottom:14px;align-items:flex-end}.msg-user{justify-content:flex-end}.msg-ai{justify-content:flex-start}.msg-avatar{width:32px;height:32px;min-width:32px;border-radius:50%;overflow:hidden;background:#fff;border:1px solid #dce4ef}.msg-avatar img{width:100%;height:100%;object-fit:cover}.msg-user span,.msg-ai span{display:block;max-width:76%;padding:11px 14px;border-radius:18px;font-size:14px;line-height:1.5;white-space:pre-wrap;word-break:break-word}.msg-user span{background:#1877f2;color:#fff;border-bottom-right-radius:6px}.msg-ai span{background:#f0f2f5;color:#111827;border-bottom-left-radius:6px}#chat-input{min-height:70px;padding:12px 14px;border-top:1px solid #edf0f4;background:#fff;display:flex;align-items:center;gap:10px}#chat-input input{flex:1;height:44px;border:none;background:#f0f2f5;border-radius:24px;padding:0 16px;outline:none;font-size:14px}#chat-input input:focus{background:#e9eef5}#chat-input button{width:44px;height:44px;border:none;border-radius:50%;background:#1877f2;color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;cursor:pointer;transition:.2s}#chat-input button:hover{transform:scale(1.05);background:#0d6efd}@media(max-width:768px){#chat-toggle{right:16px;bottom:16px;width:56px;height:56px;font-size:22px}#chatbox{right:0;bottom:0;width:100%;height:100dvh;border-radius:20px 20px 0 0}#chat-header{height:74px;padding:12px 14px}.chat-avatar-head{width:42px;height:42px}.chat-title-text strong{font-size:14px;max-width:230px}.chat-title-text small{font-size:11px}.chat-note{font-size:12px;padding:12px 20px 10px}#chat-body{padding:14px 12px}.msg-avatar{width:30px;height:30px;min-width:30px}.msg-user span,.msg-ai span{max-width:82%;font-size:13px;padding:10px 13px}#chat-input{padding:10px;padding-bottom:calc(10px + env(safe-area-inset-bottom))}#chat-input input{height:42px;font-size:13px}#chat-input button{width:42px;height:42px}}@media(max-width:480px){.chat-title-text strong{max-width:190px}.msg-user span,.msg-ai span{max-width:86%;font-size:12.5px}}