.chat-tab-container{position:fixed;right:24px;bottom:24px;z-index:9999;width:320px;min-height:480px;max-height:800px;max-width:800px;display:flex;flex-direction:column;border-radius:16px;border:1px solid rgba(33,69,204,.15);box-shadow:0 8px 32px rgba(0,0,0,.12),0 2px 8px rgba(33,69,204,.08);background:#fff;overflow:hidden;resize:none;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.resizer{position:absolute;width:16px;height:16px;top:0;left:0;cursor:nw-resize;z-index:10000;border-top-left-radius:16px;display:flex;align-items:center;justify-content:center;opacity:.4;transition:opacity .2s}.resizer:hover{opacity:.9}.resizer:before{content:"";display:block;width:8px;height:8px;border-top:2px solid #2145cc;border-left:2px solid #2145cc;border-top-left-radius:2px}.chat-tab-container.minimized{width:52px;height:52px;min-height:0;border-radius:50%;background:#2145cc;border:none;box-shadow:0 4px 16px rgba(33,69,204,.4);cursor:pointer;overflow:hidden;display:flex;align-items:center;justify-content:center;transition:transform .15s ease,box-shadow .15s ease}.chat-tab-container.minimized:hover{transform:scale(1.07);box-shadow:0 6px 20px rgba(33,69,204,.5)}.chat-header{background:linear-gradient(135deg,#2145cc,#1a38a8);color:#fff;padding:12px 14px;display:flex;justify-content:space-between;align-items:center;cursor:pointer;flex-shrink:0;-webkit-user-select:none;-moz-user-select:none;user-select:none}.chat-header.minimized{width:100%;height:100%;justify-content:center;align-items:center;padding:0;background:transparent;color:#fff}.chat-header-info{display:flex;flex-direction:column;gap:2px}.chat-title{font-size:14px;font-weight:700;letter-spacing:.01em}.chat-subtitle{font-size:11px;opacity:.85;display:flex;align-items:center;gap:4px}.chat-status-dot{width:6px;height:6px;background:#4ade80;border-radius:50%;display:inline-block;box-shadow:0 0 0 2px rgba(74,222,128,.3)}.minimize-button{display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:8px;background:hsla(0,0%,100%,.15);transition:background .15s;flex-shrink:0}.minimize-button:hover{background:hsla(0,0%,100%,.25)}.chat-messages{flex:1;padding:14px 12px;overflow-y:auto;background:#f8faff;display:flex;flex-direction:column;gap:10px}.chat-messages::-webkit-scrollbar{width:4px}.chat-messages::-webkit-scrollbar-track{background:transparent}.chat-messages::-webkit-scrollbar-thumb{background:rgba(33,69,204,.2);border-radius:4px}.message{max-width:82%;padding:9px 13px;border-radius:16px;font-size:13px;line-height:1.5;word-break:break-word;animation:msgIn .18s ease}@keyframes msgIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.message.user{align-self:flex-end;background:#2145cc;color:#fff;border-bottom-right-radius:4px}.message.server{align-self:flex-start;background:#dcfce7;color:#14532d;border-bottom-left-radius:4px}.chat-input{display:flex;align-items:flex-end;gap:8px;padding:10px 12px;background:#fff;border-top:1px solid rgba(33,69,204,.1);flex-shrink:0}.chat-input textarea{flex:1;padding:9px 11px;font-size:13px;font-family:inherit;border:1px solid #dde3f0;border-radius:10px;resize:none;outline:none;max-height:100px;line-height:1.4;color:#1e293b;background:#f8faff;transition:border-color .2s}.chat-input textarea:focus{border-color:#2145cc;background:#fff;box-shadow:0 0 0 3px rgba(33,69,204,.1)}.chat-input textarea::-moz-placeholder{color:#94a3b8}.chat-input textarea::placeholder{color:#94a3b8}.chat-send-button{flex-shrink:0;width:38px;height:38px;border-radius:10px;background:#2145cc;color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s,transform .1s}.chat-send-button:hover{background:#7e22ce}.chat-send-button:active{transform:scale(.93)}.chat-send-button:disabled{background:#c7d0e8;cursor:not-allowed}