/* 自定义样式 */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 导航菜单项样式 */
.nav-item {
    display: flex;
    align-items: center;
    padding: 6px 12px;
    border-radius: 6px;
    color: #4b5563;
    font-weight: 500;
    transition: all 0.2s ease;
}

.nav-item:hover {
    background-color: #f3f4f6;
}

.nav-item.active {
    color: #1d4ed8;
    background-color: #eff6ff;
}

/* 美化滚动条 */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

/* 数据卡片动画效果 */
.data-card {
    transition: all 0.3s ease;
}

.data-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* 图表容器样式 */
.chart-container {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    background: white;
}

/* 聊天气泡样式 */
.chat-bubble-user {
    background: #0062ff;
    color: white;
    border-radius: 18px 18px 4px 18px;
}

.chat-bubble-ai {
    background: #f2f2f7;
    color: #1d1d1f;
    border-radius: 18px 18px 18px 4px;
}

/* 苹果风格按钮 */
.apple-button {
    background: #0071e3;
    border-radius: 6px;
    color: white;
    font-weight: 500;
    padding: 8px 16px;
    transition: all 0.2s ease;
}

.apple-button:hover {
    background: #0077ed;
}

/* 数据表格样式 */
.data-table th {
    font-weight: 500;
    color: #6e6e73;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.75rem;
}

.data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid #e5e5ea;
}