body,
html {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background-color: #fff;
}

.header {
    position: relative;
    background-image: url('../img/logo-bacg.jpg');
    /* 替换为你的背景图片路径 */
    background-size: cover;
    background-position: center;
    color: white;
    /*padding: 20px;*/
    text-align: center;
}

.logo {
    position: absolute;
    top: 10px;
    left: 20px;
    width: 200px;
    /* 根据你的Logo大小调整 */
    height: auto;
}

.menu {
    display: inline-block;
    margin-left: 40%;
    margin-top: 20px;
    /*margin-right: auto;*/
    /*text-align: center;*/
}

.menu a {
    color: white;
    text-decoration: none;
    margin: 50px;
    font-size: 18px;
    position: relative;
}

.menu a.active::after,
.menu a:hover::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: -10px;
    width: 120%;
    height: 2px;
    background-color: white;
    transform: translateX(-50%);
    /* opacity: 1; 不需要这个属性了，因为.active类会负责显示 */
}


/* 移除.menu a::after的默认样式，因为我们不再需要它默认隐藏 */

.menu a::after {
    content: none;
    /* 初始时不显示伪元素 */
}

.banner {
    background-image: url('../img/banner-index.jpg');
    /* 替换为你的banner背景图片路径 */
    background-size: cover;
    /* 确保图片覆盖整个容器 */
    background-position: center;
    /* 图片居中显示 */
    height: 50vh;
    /* 视口高度的100%，即全屏高度 */
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    /* 根据需要调整文字颜色 */
}

.banner-content {
    /* 你可以在这里添加padding或margin来调整内容的位置 */
    padding: 20px;
    position: absolute;
    left: 10%;
    /*background: rgba(0, 0, 0, 0.5); /* 可选：添加一个半透明的黑色背景以使文字更易读 */
    */
}

.banner-content h1 {
    font-size: 5em;
}

.banner-content p a {
    text-decoration: none;
    font-size: 2em;
    color: #FFFFFF;
}


/* 新增关于我们部分的样式 */

.about-us {
    text-align: center;
    padding-top: 50px;
    background-color: #fff;
    /* 可选：添加一个背景色以区分不同部分 */
}

.about-us .icon {
    margin-bottom: 20px;
    width: 100px;
    /* 根据图标大小调整 */
    height: auto;
}

.about-us .title {
    font-size: 2em;
    margin-bottom: 40px;
}


/* 新增三个并排部分的样式 */

.features {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    width: 80%;
    margin: 50px auto;
}

.feature {
    flex: 1;
    width: 20%;
    /* 设置最小宽度以确保内容不会过于拥挤 */
    margin: 10px;
    box-sizing: border-box;
    text-align: center;
}

.feature img {
    max-width: 100%;
    height: auto;
    /*border-radius: 10px;*/
    /* 可选：为图片添加圆角 */
}

.feature .description {
    margin-top: 20px;
    font-size: 1.5em;
}

.feature .description p {
    text-align: left;
    width: 80%;
    margin: 0 auto;
    font-size: 18px
}

.system-features {
    width: 100%;
    height: 700px;
    background-image: url('../img/banner-xt.jpg');
    /* 替换为您的背景图片路径 */
    background-size: cover;
    background-position: center;
    padding: 60px 0;
    text-align: center;
}

.system-features .container {
    /* 可选：限制容器宽度以提高可读性 */
    margin: 50px auto;
    color: #fff;
}

.system-features .title {
    font-size: 2em;
    margin-bottom: 20px;
}

.system-features .content {
    width: 80%;
    margin: 20px auto;
}

.system-features .content p {
    font-size: 1.5em;
    line-height: 2em;
    width: 95%;
    margin: 20px auto;
    text-align: left;
}

.successCases {
    margin: 50px auto;
}

.successCases .title {
    margin: 50px auto;
    text-align: center;
    /*display: flex;
				align-items: center;
				justify-content: center;*/
}

.successCases .icon {
    width: 50px;
    height: 50px;
    margin-right: 10px;
}

.successCases h1 {
    margin: 0;
}

.successCases .gallery {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
}

.successCases .row {
    display: flex;
    justify-content: center;
    /*margin-bottom: 20px;*/
}

.successCases .image-container {
    flex: 1;
    max-width: 25%;
    /* 4张图片，每张占25%宽度 */
    box-sizing: border-box;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 8px rgba(74, 74, 74, 0.2);
}

.successCases .image-container img {
    width: 100%;
    height: auto;
}

.successCases .overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(91, 89, 89, 0.4);
    /* 半透明黑色背景 */
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.successCases .image-container:hover .overlay {
    opacity: 0.8;
    background-color: gray;
    /* 鼠标悬停时显示灰色背景 */
}

footer {
    /* background-color: #f8f9fa; */
    padding: 20px 0;
    text-align: center;
    border-top: 1px solid #ddd;
}

.footer-container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    width: 80%;
    margin: 0 auto;
}

.column {
    flex: 1;
    min-width: 200px;
    /* 确保列不会太小 */
    margin: 10px;
    padding: 10px;
    box-sizing: border-box;
}

.column h3 {
    margin-top: 0;
}

.column ul {
    list-style-type: none;
    padding: 0;
}

.column ul li {
    margin: 5px 0;
}

.column ul li a {
    text-decoration: none;
    color: #333;
}

.column ul li a:hover {
    text-decoration: underline;
}

.qrcode img {
    max-width: 100%;
    height: auto;
}

.foot-ban a {
    text-decoration: none;
    color: #333;
}

.foot-ban a :hover {
    color: aquamarine;
}


/* 响应式设计 */

@media (max-width: 768px) {
    .column {
        flex: 1 1 100%;
        /* 在小屏幕上每列占满一行 */
    }
    .menu a {
        margin: 10px;
        display: block;
        text-align: center;
    }
}