body {
    font-family: "Helvetica Neue", "Helvetica", "Arial", Helvetica, sans-serif;
    font-size: 14px;
    font-weight: 400;
    color: #000;
    padding-top: 75px;
    line-height: 2;
}

* {
    box-sizing: border-box;
    -moz-box-sizing: border-box; /* Firefox */
    -webkit-box-sizing: border-box;
}

img {
    border: 0;
}

.clearfix:after {
    content: " ";
    visibility: hidden;
    display: block;
    height: 0;
    clear: both;
}

.container {
    min-width: auto;  /* 改变最小宽度以适应内容布局 */
    padding: 0 20px;  /* 可选：为容器添加一些填充 */
}

.header {
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    height: 75px;
    border-bottom: 1px solid #DDD;
    background-color: #FFF;
    z-index: 100;
    overflow: auto;
}

.header-left {
    float: left;
}

.logo {
    font-size: 25px;
    margin: 13px 50px 0 50px;
}

.header-right {
    float: right;
}

.header-nav {
    margin-right: 20px;
}

.header-nav li {
    display: inline-block;
}

.header-nav a {
    display: inline-block;
    line-height: 90px;
    height: 75px;
    font-size: 14px;
    color: #000;
    padding: 0 30px;
    text-decoration: none;
}

@media (max-width: 980px) {
    .logo {
        font-size: 30px;
    }

    .header-nav a {
        font-size: 30px;
        padding: 0 20px;
    }

    .default-page .page-content {
        padding: 0 14px !important;
    }

    .default-page .page-title {
        word-break: keep-all;
    }
}

.header-nav a:hover {
    border-bottom: 5px solid #000;
}

.banner {
    height: 500px;
    overflow: hidden;
}

.banner-item {
    position: relative;
    height: 500px;
    background-color: #000;
    opacity: 0.7; /* 将整个元素的不透明度设置为0.5 */
}

.banner-item .banner-title {
    position: absolute;
    z-index: 3;
    top: 100px;
    left: 200px;
    width: 900px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: #FFF;
    font-size: 40px;
}

.banner-item .banner-content {
    position: absolute;
    z-index: 3;
    top: 200px;
    left: 200px;
    color: #FFF;
    width: 900px;
    font-size: 20px;
}
.banner-item .banner-title, .banner-item .banner-content {
    background-color: rgba(0, 0, 0, 0.5); /* 添加半透明的黑色背景 */
    padding: 10px; /* 添加一些内填充 */
    border-radius: 5px; /* 可选: 为背景添加一些圆角 */
}

.banner-item .bac-image {
    position: absolute;
    z-index: 2;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.unslider {
    position: relative;
}

.unslider-arrow {
    position: absolute;
    top: 190px;
    width: 30px;
    height: 100px;
    background-color: #DDD;
    z-index: 5;
    text-indent: -999px;
    overflow: hidden;
}

.unslider-arrow.prev {
    left: 0;
    background: url('/images/rectangle.png') no-repeat center center;
    background-size: 100% 100%;
}

.unslider-arrow.next {
    right: 0;
    background: url('/images/rectangle02.png') no-repeat center center;
    background-size: 100% 100%;
}

.unslider-nav {
    position: absolute;
    z-index: 5;
    margin: auto;
    left: 0;
    right: 0;
    bottom: 10px;
}

.unslider-nav ol li {
    display: inline-block;
    width: 12px;
    height: 12px;
    margin: 0 6px;
    background: transparent;
    border-radius: 6px;
    overflow: hidden;
    text-indent: -999em;
    border: 2px solid #fff;
    cursor: pointer;
}

.unslider-nav ol li.unslider-active {
    background: #fff;
    cursor: default;
}

.default-page {
    padding: 20px;  /* 减少填充以适应新的布局 */
    text-align: left;  /* 将文本对齐更改为左对齐，以适应新的布局 */
    position: relative;
}

.default-page.dark {
    background-color: #F4F4F4;
}

.default-page .page-title {
    font-size: 30px;
    margin: 5px 0 20px;
    text-align: center;  /* 保持页面标题居中对齐 */
}

.default-page .page-content {
    font-size: 16px;
    padding: 0 200px;
    margin: 8px 0 35px;
}

.default-cards {
    margin: 60px -1% 0;
}

.default-cards > .card {
    margin: 0 2.5%;
    float: left;
    width: 28.3%;
    padding: 25px;
    background-color: #FFF;
}

.default-cards > .card > .card-title {
    font-size: 24px;
    text-align: center;
    margin: 2px 0 10px;
}

.default-cards > .card > .card-content {
    font-size: 14px;
    text-align: left;
    margin: 2px 0 20px;
    height: 130px;
    overflow: hidden;
}

.footer {
    height: 75px;
    background-color: #000;
    color: #FFF;
}

.footer .copyright {
    line-height: 75px;
    height: 75px;
    font-size: 12px;
    text-align: center;
}

.icon-email {
    display: inline-block;
    vertical-align: middle;
    margin-right: 5px;
    width: 28px;
    height: 17px;
    background: url(/images/icon-email.png) no-repeat center center;
}

.framework-sections {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: space-between;
}

.framework-section {
    flex: 1 1 48%;
    border: 1px solid #ccc;
    padding: 20px;
    box-sizing: border-box;
}

.framework-title {
    font-size: 18px;
    margin-bottom: 10px;
}

.framework-section ul {
    padding-left: 20px;
}