/* 小屏幕（手机、平板）  大于768 */
@media (max-width:768px) {
    .banner-w {
        flex-direction: column;
    }

    .aside {
        width: 100%;
        margin-top: 30px;
    }

    .aside .u1>li>a {
        font-size: 16px;
    }

    .aside .u2>li>a {
        font-size: 14px;
    }

    .main {
        width: 100%;
    }

    .main .menu {
        display: none;
    }

    .overview .ov {
        flex-direction: column;
        align-items: center;
    }

    .overview .ov .ov-con {
        width: 100%;
        line-height: 2;
        font-size: 16px;
        margin-bottom: 20px;
    }

    .overview .ov .ov-img {
        width: 90%;
        height: 50vw;
    }

    .success .su {
        flex-direction: column;
    }

    .success .su-item {
        width: 100%;
    }

    .success .su-item .su-img {
        width: 90%;
        height: 50vw;
    }

    .main .top h1 {
        font-size: 20px;
    }

    .content .con-title {
        padding: 10px 0;
    }

    .content .con-title .gang {
        margin-right: 15px;
    }

    .content .con-title .name {
        font-size: 20px;
    }

    .point ul>li {
        margin-bottom: 10px;
        font-size: 16px;
        line-height: 2.2;
    }

    .success .su-item .su-name {
        font-size: 14px;
    }
}

/* 中等屏幕  大于768 */
@media (min-width:769px) {
    .banner-w {
        flex-direction: column;
    }

    .main .top {
        position: sticky;
        top: 0;
    }

    .aside .u1>li>a {
        font-size: 18px;
    }

    .aside .u2>li>a {
        font-size: 16px;
    }

    .main .menu {
        display: block;
    }

    .overview .ov {
        flex-direction: row;
    }

    .overview .ov .ov-con {
        width: 60%;
        margin-right: 30px;
        line-height: 40px;
    }

    .overview .ov .ov-img {
        width: 35%;
        height: 25vw;
    }

    .success .su-item:nth-child(2) {
        margin: 0 20px;
    }

    .success .su-item {
        width: 33.333%;
    }

    .success .su-item .su-img {
        width: 100%;
        height: 20vw;
        max-height: 230px;
    }

    .main .top h1 {
        font-size: 25px;
    }

    .content .con-title {
        padding: 20px 0;
    }

    .content .con-title .gang {
        margin-right: 20px;
    }

    .content .con-title .name {
        font-size: 25px;
    }

    .point ul>li {
        margin-bottom: 30px;
        font-size: 18px;
    }

    .success .su-item .su-name {
        font-size: 16px;
    }
}

/* 大屏幕 大于1200 */
@media (min-width:1200px) {
    .banner-w {
        flex-direction: row-reverse;
    }

    .aside {
        position: sticky;
        top: 0;
        width: 23%;
        height: 100vh;
        background-color: #e6eaee75;
        padding: 156px 0 100px 0px;
        margin-left: 50px;
        padding-bottom: 100px;
    }

    .main {
        width: 77%;
        padding-bottom: 100px;
    }

    .overview .ov .ov-img {
        width: 40%;
        height: 15vw;
    }

    .success .su-item {
        width: 33.333%;
    }

    .success .su-item .su-img {
        height: 200px;
    }

    .main .top h1 {
        font-size: 30px;
    }

    .footer {
        margin-top: 0;
    }
}

/* 侧边栏 */
.aside .u1>li>a {
    background-color: #e6eaee94;
}

.aside ul>li>a {
    position: relative;
    display: flex;
    align-items: center;
    padding: 15px 20px 15px 20px;
}

.aside .u2 {
    display: none;
}

.aside .u2>li>a {
    position: relative;
    display: flex;
    align-items: center;
    padding: 13px 20px 13px 20px;
    color: #333;
}

.aside .u2>li>a>span:hover {
    color: #d43418;
}

.aside .active-u1>a {
    display: flex;
    align-items: center;
}

.aside>.u1>li:first-child>.u2 {
    display: block;
}

.aside ul>li>a>span {
    width: 100%;
    display: flex;
    align-items: center;
    color: black;
    justify-content: space-between;
    margin-left: 10px;
}

.aside .active-u1>a::before {
    display: block;
    content: '';
    width: 10px;
    height: 10px;
    background-color: #d43418;
}

.aside .active-u2 span {
    color: #d43418;
    font-weight: bold;
}

/* 内容 */

.banner-w .content {
    width: 100%;
    height: 100%;
    font-size: 18px;
}

.banner-w {
    display: flex;
}

.main .top {
    width: 100%;
    background-color: #fff;
}

.main .top h1 {
    padding: 20px 0;
}

.main .top .menu {
    padding: 15px 0;
    border-bottom: 1px solid #e6eaee;
}

.main .top .menu>a {
    font-size: 18px;
    color: #000;
    margin: 20px 0;
    padding-bottom: 15px;
}

.main .top .menu>a:nth-child(2) {
    margin: 0 60px;
}

.main .top .menu .active {
    border-bottom: 3px solid #d43418;
    font-weight: bold;
}

/* 标题 */
.content .con-title {
    display: flex;
    align-items: center;
    border-bottom: 1px solid #e6eaee;
    margin: 20px 0;
}

.content .con-title .gang {
    width: 5px;
    height: 20px;
    background-color: #d43418;
}

.content .con-title .name {
    font-weight: bold;
}

/* 方案概述 */
.overview .ov {
    display: flex;
}

.overview .ov .ov-con {
    text-indent: 2em;
}

.overview .ov .ov-img {
    border-radius: 20px;
    overflow: hidden;
}

.overview .ov .ov-img img {
    transition: all .3s linear;

}

.overview .ov .ov-img img:hover {
    transform: scale(1.1);
}

/* 方案特点 */
.point ul>li {
    list-style: inside;
}

/* 成功案例 */

.success .su {
    display: flex;
    justify-content: space-between;
}

.success .su-item {
    display: flex;
    box-sizing: border-box;
    flex-direction: column;
    align-items: center;
    flex: 1;
}

.success .su-item .su-img {
    border-radius: 20px;
    overflow: hidden;
}

.success .su-item .su-img img {
    transition: all .3s linear;
}

.success .su-item .su-name {
    font-weight: bold;
    margin: 20px 10px;
    display: inline-block;
    display: -webkit-box;
    /* 将容器以弹性盒子形式布局 */
    -webkit-line-clamp: 1;
    /* 限制文本显示为两行 */
    -webkit-box-orient: vertical;
    /* 将弹性盒子的主轴方向设置为垂直方向 */
    overflow: hidden;
    /* 隐藏容器中超出部分的内容 */
    text-overflow: ellipsis;
    /* 超出容器范围的文本显示省略号 */
}

.success .su-item:hover .su-img img {
    transform: scale(1.1);
}

.success .su-item:hover .su-name {
    color: #d43418;
}