.navigation-chat-overlay{position:fixed;inset:0;z-index:3000;background:rgba(3,7,24,.78);backdrop-filter:blur(5px);display:grid;place-items:center;padding:16px;color:#e9f0ff;font-family:Arial,Microsoft YaHei,sans-serif}.navigation-chat{width:min(100%,370px);height:min(610px,calc(100dvh - 32px));display:flex;flex-direction:column;background:linear-gradient(145deg,#162344,#0a1428);border:1px solid #6c66bc;border-radius:24px;box-shadow:0 20px 70px #0008;overflow:hidden}.navigation-chat header{display:flex;align-items:center;gap:12px;padding:20px 18px 15px;background:linear-gradient(110deg,#1e315b,#26224b);flex-shrink:0}.navigation-chat h2{font-size:21px;font-weight:800;margin:0}.navigation-chat header p{font-size:11px;color:#a9b8d4;margin:5px 0 0}.navigation-chat button{cursor:pointer;border:0;color:inherit;background:transparent}.navigation-chat header>button{margin-left:auto;align-self:flex-start;padding:4px}.chat-avatar{width:54px;height:54px;border-radius:16px;background:#304467;overflow:hidden}.chat-avatar img{width:100%;height:100%;-o-object-fit:cover;object-fit:cover;-o-object-position:50% 15%;object-position:50% 15%;transform:scale(1.3)}.chat-notice{display:flex;gap:7px;align-items:center;font-size:11px;padding:11px 16px;color:#aebddd;border-bottom:1px solid #314362}.chat-messages{flex:1;min-height:0;overflow-y:auto;padding:18px 15px;display:flex;flex-direction:column;gap:15px;overscroll-behavior:contain}.chat-bubble{max-width:87%;font-size:13px;line-height:1.7;background:#1c2b48;border:1px solid #344663;border-radius:14px 14px 14px 4px;padding:10px 12px;overflow-wrap:anywhere}.chat-bubble p{margin:0;white-space:pre-wrap}.chat-row{display:flex;flex-shrink:0}.chat-row.is-mine{justify-content:flex-end}.is-mine .chat-bubble{background:linear-gradient(120deg,#16c5bf,#0faaa9);color:#062332;border-color:#37ded1;border-radius:14px 14px 4px 14px}.chat-bubble small{display:block;text-align:right;font-size:10px;opacity:.7;margin-top:4px}.chat-bubble img{display:block;max-width:100%;max-height:180px;border-radius:8px}.chat-bubble button{font-size:11px;text-decoration:underline;padding:4px}.chat-composer{flex-shrink:0;margin:0 14px;border:1px solid #3b5076;border-radius:15px;padding:10px;background:#0c172d}.chat-composer textarea{display:block;width:100%;height:49px;resize:none;background:transparent;color:#e6efff;border:0;outline:none;font-size:13px}.chat-composer textarea::-moz-placeholder{color:#7685a2}.chat-composer textarea::placeholder{color:#7685a2}.chat-composer>div{display:flex;align-items:center;justify-content:space-between}.chat-composer>div>button:first-child{color:#e3b85c;padding:5px}.chat-composer .chat-send{background:linear-gradient(135deg,#28e3d7,#06b7ca);color:#05313b;border-radius:10px;min-width:68px;padding:8px 16px;font-size:13px;font-weight:800}.navigation-chat button:disabled{opacity:.5;cursor:default}.chat-composer textarea:focus-visible,.navigation-chat button:focus-visible{outline:2px solid #74dfed;outline-offset:3px}.chat-status{font-size:11px;color:#ecc281;margin:0 0 7px}.navigation-chat footer{text-align:center;padding:9px;font-size:10px;color:#8091b1;flex-shrink:0}