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var(--nh-accent-strong)}.security-reminder{font-size:11px;color:#fff6;text-align:center;padding:8px 4px 0;margin-top:8px}@media(max-width:768px){.messages-area{padding:16px;gap:12px}.message{max-width:95%;gap:12px;padding:16px}.message-avatar{width:36px;height:36px;font-size:12px}.message-text{font-size:15px}.chat-input-area{padding:10px 12px 14px}.chat-textarea{min-height:48px;padding:12px;font-size:16px}.send-button{min-height:48px;padding:12px 14px;font-size:14px}.input-container{gap:8px}.action-buttons{gap:12px}.action-button{flex:1;justify-content:center;font-size:14px;height:44px}}.messages-area::-webkit-scrollbar{width:6px}.messages-area::-webkit-scrollbar-track{background:transparent}.messages-area::-webkit-scrollbar-thumb{background:#fff3;border-radius:3px}.messages-area::-webkit-scrollbar-thumb:hover{background:#ffffff4d}.streaming-cursor .message-text:after{content:"▋";display:inline;animation:blink-cursor 1s step-end infinite;color:var(--nh-accent)}@keyframes 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