.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    text-align: center;
}

/* 添加h1和h2的样式 */
h1 {
    font-size: 32px;
    margin-bottom: 20px;
}

h2 {
    font-size: 24px;
    margin-bottom: 15px;
}

.navigation-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

.nav-button {
    padding: 15px 30px;
    font-size: 18px;
    background-color: #007bff;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.nav-button:hover {
    background-color: #0056b3;
}

.back-button {
    padding: 8px 15px;
    background-color: #007bff;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    margin-bottom: 20px;
    display: inline-block;
    float: right;
}

.back-button:hover {
    background-color: #0056b3;
}

.header {
    padding: 20px;
    text-align: center;
    overflow: hidden;
    width: 90%;
}

/* 在现有的CSS基础上添加以下样式 */

/* 容器响应式样式 */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* 导航按扭响应式样式 */
.navigation-buttons {
    display: flex;
    flex-direction: row;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.nav-button {
    min-width: 200px;
    padding: 15px 25px;
    font-size: 16px;
}

/* 移动端适配 */
@media screen and (max-width: 768px) {
    h1 {
        font-size: 24px;
        text-align: center;
    }

    h2 {
        font-size: 20px;
    }

    .navigation-buttons {
        flex-direction: column;
        align-items: center;
    }

    .nav-button {
        width: 100%;
        max-width: 300px;
    }

    .back-button {
        float: right;
        margin: 0 0 20px 0;
    }

    .header {
        padding: 15px;
    }
}

/* 确保在小屏幕设备上的可读性 */
@media screen and (max-width: 480px) {
    .container {
        padding: 10px;
    }

    h1 {
        font-size: 20px;
    }

    h2 {
        font-size: 18px;
    }

    .nav-button {
        font-size: 14px;
        padding: 12px 20px;
    }
}

/* 添加control-buttons的样式 */
.control-buttons {
    display: flex;
    gap: 15px;
    margin: 20px auto;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    max-width: 800px;
}

.control-buttons button {
    padding: 10px 20px;
    font-size: 14px;
    border: none;
    border-radius: 5px;
    background-color: #007bff;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.control-buttons button:hover {
    background-color: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.control-buttons button:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.control-buttons span {
    padding: 8px 15px;
    background-color: #f8f9fa;
    border-radius: 4px;
    font-size: 14px;
    color: #495057;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* 移动端适配 */
@media screen and (max-width: 768px) {
    .control-buttons {
        flex-direction: column;
        gap: 10px;
    }
    
    .control-buttons button {
        width: 100%;
        max-width: 300px;
    }
    
    .control-buttons span {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }
}

/* 在现有样式的基础上添加 */

.table-container {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 0 auto 20px auto;
    background: 
        linear-gradient(to right, white 30%, rgba(255,255,255,0)),
        linear-gradient(to right, rgba(255,255,255,0), white 70%) 100% 0,
        radial-gradient(farthest-side at 0% 50%, rgba(0,0,0,.2), rgba(0,0,0,0)),
        radial-gradient(farthest-side at 100% 50%, rgba(0,0,0,.2), rgba(0,0,0,0)) 100% 0;
    background-repeat: no-repeat;
    background-color: white;
    background-size: 40px 100%, 40px 100%, 14px 100%, 14px 100%;
    background-position: 0 0, 100% 0, 0 0, 100% 0;
    background-attachment: local, local, scroll, scroll;
}

/* 调整portfolio-group在移动端的样式 */
@media screen and (max-width: 768px) {
    .portfolio-group {
        margin: 15px 0;
        padding: 10px;
        width: 100%;
        box-sizing: border-box;
    }
    
    .table-container {
        margin: 10px -10px;  /* 抵消父元素的padding */
        width: calc(100% + 20px);  /* 补偿margin */
    }
    
    table {
        margin-bottom: 0;  /* 移除表格底部边距，因为容器已经有了 */
    }
}

/* 添加body基础样式确保整体居中 */
body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* 图表容器居中 */
.chart-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

/* portfolio组居中 */
.portfolio-group {
    width: 100%;
    max-width: 1200px;
    margin: 20px auto;
    box-sizing: border-box;
}