/* 全局样式 */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
}

/* 自定义滚动条 */
#chat-messages::-webkit-scrollbar {
    width: 6px;
}
#chat-messages::-webkit-scrollbar-track {
    background: #292524;
}
#chat-messages::-webkit-scrollbar-thumb {
    background: #57534e;
    border-radius: 3px;
}
#chat-messages::-webkit-scrollbar-thumb:hover {
    background: #78716c;
}

/* 打字机动画 */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}
.typing-dot {
    animation: pulse 1.5s infinite;
}

/* 移动端优化 */
@media (max-width: 640px) {
    nav .space-x-6 {
        gap: 0.75rem;
    }
    nav a {
        font-size: 0.75rem;
    }
}