.aca-chat-bubble{position:fixed;bottom:24px;right:24px;width:60px;height:60px;border-radius:50%;background:#1976d2;border:none;cursor:pointer;box-shadow:0 4px 16px #1976d266;display:flex;align-items:center;justify-content:center;transition:transform .2s,box-shadow .2s;z-index:10000;padding:0;overflow:hidden}.aca-chat-bubble:hover{transform:scale(1.08);box-shadow:0 6px 24px #1976d28c}.aca-chat-bubble-icon{width:100%;height:100%;border-radius:50%;object-fit:cover}.aca-chat-container{position:fixed;bottom:24px;right:24px;width:380px;height:580px;background:#fff;border-radius:16px;box-shadow:0 12px 48px #0000002e;display:flex;flex-direction:column;overflow:hidden;z-index:10000;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;isolation:isolate}.aca-chat-header{padding:14px 16px;background:#1976d2;color:#fff;display:flex;justify-content:space-between;align-items:center}.aca-chat-header-left{display:flex;align-items:center;gap:10px}.aca-chat-header-avatar{width:38px;height:38px;border-radius:50%;overflow:hidden;border:2px solid rgba(255,255,255,.3);flex-shrink:0}.aca-chat-header-avatar img{width:100%;height:100%;object-fit:cover}.aca-chat-header-info{display:flex;flex-direction:column;gap:2px}.aca-chat-header-name{font-size:15px;font-weight:600;letter-spacing:-.2px}.aca-chat-header-status{font-size:11px;opacity:.9;display:flex;align-items:center;gap:4px}.aca-chat-status-dot{width:7px;height:7px;border-radius:50%;background:#4caf50;display:inline-block}.aca-chat-header-right{display:flex;gap:4px}.aca-chat-header-btn{background:#ffffff1f;border:none;color:#fff;width:32px;height:32px;border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s}.aca-chat-header-btn:hover{background:#ffffff40}.aca-chat-messages{flex:1;padding:16px;overflow-y:auto;background:#f8f9fa}.aca-chat-empty,.aca-chat-welcome{text-align:center;padding:48px 24px;display:flex;flex-direction:column;align-items:center;gap:8px}.aca-chat-empty-icon,.aca-chat-welcome-icon{width:56px;height:56px;border-radius:50%;overflow:hidden;margin-bottom:8px;box-shadow:0 2px 12px #1976d233}.aca-chat-empty-icon img,.aca-chat-welcome-icon img{width:100%;height:100%;object-fit:cover}.aca-chat-empty p,.aca-chat-welcome-subtitle{color:#666;font-size:13px;margin:0}.aca-chat-welcome-title{font-size:16px;font-weight:600;color:#333;margin:0}.aca-chat-empty button{margin-top:12px;padding:8px 20px;background:#1976d2;color:#fff;border:none;border-radius:20px;cursor:pointer;font-size:13px;font-weight:500;transition:background .2s}.aca-chat-empty button:hover{background:#1565c0}.aca-chat-msg{display:flex;gap:8px;margin-bottom:16px;align-items:flex-start}.aca-chat-msg.user{flex-direction:row-reverse}.aca-chat-msg-avatar{width:30px;height:30px;border-radius:50%;overflow:hidden;flex-shrink:0;margin-top:18px}.aca-chat-msg-avatar img{width:100%;height:100%;object-fit:cover}.aca-chat-msg-bubble-wrap{display:flex;flex-direction:column;max-width:78%}.aca-chat-msg.user .aca-chat-msg-bubble-wrap{align-items:flex-end}.aca-chat-msg-sender{font-size:11px;color:#888;margin-bottom:3px;margin-left:2px}.aca-chat-msg-bubble{padding:10px 14px;border-radius:16px;font-size:13px;line-height:1.5;word-wrap:break-word}.aca-chat-msg.assistant .aca-chat-msg-bubble{background:#fff;color:#333;border:1px solid #e8e8e8;border-top-left-radius:4px}.aca-chat-msg.user .aca-chat-msg-bubble{background:#1976d2;color:#fff;border-top-right-radius:4px}.aca-chat-link{color:#1976d2;font-weight:600;text-decoration:underline;cursor:pointer}.aca-chat-link:hover{color:#0d47a1}.aca-chat-msg-time{font-size:10px;color:#aaa;margin-top:3px;margin-left:2px;margin-right:2px}.aca-chat-msg-bubble h2,.aca-chat-msg-bubble h3,.aca-chat-msg-bubble h4{margin:6px 0 4px;line-height:1.3}.aca-chat-msg-bubble h2{font-size:15px}.aca-chat-msg-bubble h3{font-size:14px}.aca-chat-msg-bubble h4{font-size:13px;font-weight:600}.aca-chat-msg-bubble ul{margin:4px 0;padding-left:16px}.aca-chat-msg-bubble li{margin-bottom:2px}.aca-chat-msg-bubble hr{border:none;border-top:1px solid #eee;margin:6px 0}.aca-chat-msg-bubble code{background:#0000000f;padding:1px 5px;border-radius:4px;font-size:11.5px;font-family:SF Mono,Fira Code,monospace}.aca-chat-msg-bubble strong{font-weight:600}.aca-chat-typing{display:flex;gap:4px;padding:12px 16px!important}.aca-chat-typing span{width:7px;height:7px;border-radius:50%;background:#bbb;animation:typingBounce 1.4s infinite ease-in-out}.aca-chat-typing span:nth-child(2){animation-delay:.2s}.aca-chat-typing span:nth-child(3){animation-delay:.4s}@keyframes typingBounce{0%,80%,to{transform:scale(.7);opacity:.4}40%{transform:scale(1);opacity:1}}.aca-chat-input-area{padding:8px 12px 12px;background:#fff;border-top:1px solid #eee;display:flex;flex-direction:column;gap:6px}.aca-chat-model-selector{position:relative}.aca-chat-model-btn{display:flex;align-items:center;gap:4px;padding:3px 8px;border:1px solid #e0e0e0;border-radius:12px;background:#f8f9fa;cursor:pointer;font-size:11px;color:#666;transition:all .15s}.aca-chat-model-btn:hover:not(:disabled){border-color:#1976d2;color:#1976d2;background:#e3f2fd}.aca-chat-model-btn:disabled{opacity:.5;cursor:not-allowed}.aca-chat-model-btn svg:first-child{color:#1976d2}.aca-chat-model-dropdown{position:absolute;bottom:calc(100% + 4px);left:0;min-width:200px;max-height:200px;overflow-y:auto;background:#fff;border:1px solid #e0e0e0;border-radius:10px;box-shadow:0 4px 16px #0000001f;z-index:30;padding:4px}.aca-chat-model-option{padding:8px 12px;font-size:12px;color:#333;border-radius:6px;cursor:pointer;transition:background .1s}.aca-chat-model-option:hover{background:#f0f4ff}.aca-chat-model-option.active{background:#e3f2fd;color:#1976d2;font-weight:500}.aca-chat-input-row{display:flex;gap:8px;align-items:flex-end}.aca-chat-input-row textarea{flex:1;padding:10px 14px;border:1px solid #e0e0e0;border-radius:20px;resize:none;font-family:inherit;font-size:13px;max-height:80px;transition:border-color .2s;line-height:1.4}.aca-chat-input-row textarea:focus{outline:none;border-color:#1976d2;box-shadow:0 0 0 2px #1976d21a}.aca-chat-send-btn{width:38px;height:38px;background:#1976d2;color:#fff;border:none;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s,transform .1s;flex-shrink:0}.aca-chat-send-btn:hover:not(:disabled){background:#1565c0;transform:scale(1.05)}.aca-chat-send-btn:disabled{background:#bdbdbd;cursor:not-allowed}.aca-chat-config-panel{flex:1;overflow-y:auto;padding:16px;background:#f8f9fa}.aca-chat-config-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}.aca-chat-config-header h4{margin:0;font-size:14px;font-weight:600;color:#333}.aca-chat-config-header button{background:none;border:none;font-size:18px;cursor:pointer;color:#666;padding:4px 8px;border-radius:6px;transition:background .15s}.aca-chat-config-header button:hover{background:#e0e0e0}.aca-provider-card{background:#fff;border:1px solid #e8e8e8;border-radius:10px;padding:12px 14px;margin-bottom:8px;transition:border-color .2s,box-shadow .2s}.aca-provider-card.active{border-color:#1976d2;box-shadow:0 0 0 1px #1976d226}.aca-provider-card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.aca-provider-card-name{font-size:13px;font-weight:600;color:#333}.aca-provider-card-badge{font-size:10px;padding:2px 8px;border-radius:10px;background:#e8f5e9;color:#2e7d32;font-weight:500}.aca-provider-card-badge.active{background:#1976d2;color:#fff}.aca-provider-card-actions{display:flex;gap:6px}.aca-provider-btn{padding:5px 10px;border:none;border-radius:6px;font-size:11px;font-weight:500;cursor:pointer;transition:all .15s}.aca-provider-btn.activate{background:#e3f2fd;color:#1565c0}.aca-provider-btn.activate:hover{background:#bbdefb}.aca-provider-btn.edit{background:#f5f5f5;color:#555}.aca-provider-btn.edit:hover{background:#e0e0e0}.aca-provider-btn.delete{background:#ffebee;color:#c62828}.aca-provider-btn.delete:hover{background:#ffcdd2}.aca-provider-btn.save{background:#1976d2;color:#fff}.aca-provider-btn.save:hover{background:#1565c0}.aca-provider-btn.save:disabled{opacity:.5;cursor:not-allowed}.aca-provider-btn.cancel{background:#f5f5f5;color:#555}.aca-provider-btn.cancel:hover{background:#e0e0e0}.aca-provider-card-form{margin-top:8px}.aca-provider-input{width:100%;padding:8px 10px;border:1px solid #e0e0e0;border-radius:6px;font-size:12px;font-family:SF Mono,Fira Code,monospace;margin-bottom:8px;box-sizing:border-box;transition:border-color .2s}.aca-provider-input:focus{outline:none;border-color:#1976d2;box-shadow:0 0 0 2px #1976d21a}.aca-provider-card-form-actions{display:flex;gap:6px;justify-content:flex-end}.aca-chat-history-panel{flex:1;overflow-y:auto;padding:16px;background:#f8f9fa}.aca-chat-history-empty{text-align:center;color:#888;font-size:13px;padding:24px 0}.aca-chat-history-list{display:flex;flex-direction:column;gap:4px}.aca-chat-history-item{display:flex;align-items:center;gap:4px;padding:10px 12px;border-radius:8px;background:#fff;border:1px solid #e8e8e8;transition:all .15s}.aca-chat-history-item.active{border-color:#1976d2;background:#e3f2fd}.aca-chat-history-item-content{flex:1;cursor:pointer;display:flex;flex-direction:column;gap:2px;min-width:0}.aca-chat-history-item-title{font-size:12.5px;font-weight:500;color:#333;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.aca-chat-history-item-date{font-size:10.5px;color:#999}.aca-chat-history-item-delete{background:none;border:none;color:#bbb;cursor:pointer;padding:4px;border-radius:4px;display:flex;align-items:center;justify-content:center;transition:all .15s;flex-shrink:0}.aca-chat-history-item-delete:hover{color:#c62828;background:#ffebee}.aca-chat-toast{position:absolute;bottom:70px;left:12px;right:12px;padding:10px 14px;border-radius:10px;font-size:12px;font-weight:500;display:flex;align-items:center;gap:8px;animation:slideUp .2s ease-out;box-shadow:0 4px 12px #0000001f;z-index:10}.aca-chat-toast.success{background:#e8f5e9;color:#2e7d32;border:1px solid #c8e6c9}.aca-chat-toast.error{background:#ffebee;color:#c62828;border:1px solid #ffcdd2}@keyframes slideUp{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.aca-chat-confirm-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:20;border-radius:16px}.aca-chat-confirm{background:#fff;border-radius:12px;padding:20px;margin:16px;box-shadow:0 8px 24px #0003;max-width:280px;width:100%}.aca-chat-confirm p{margin:0 0 16px;font-size:13px;color:#333;line-height:1.5}.aca-chat-confirm-actions{display:flex;gap:8px;justify-content:flex-end}.aca-chat-confirm-cancel{padding:8px 16px;border:1px solid #e0e0e0;border-radius:8px;background:#fff;color:#555;font-size:12px;font-weight:500;cursor:pointer;transition:background .15s}.aca-chat-confirm-cancel:hover{background:#f5f5f5}.aca-chat-confirm-ok{padding:8px 16px;border:none;border-radius:8px;background:#d32f2f;color:#fff;font-size:12px;font-weight:500;cursor:pointer;transition:background .15s}.aca-chat-confirm-ok:hover{background:#b71c1c}@media(max-width:480px){.aca-chat-container{width:100%;height:100%;bottom:0;right:0;border-radius:0}.aca-chat-bubble{bottom:16px;right:16px}}