.sec:nth-child(2n) {
    background: #F9FAFF;
}

.sec-content .top {
    overflow: hidden;
}

.sec-content .top .advertising {
    width: 280px;
    height: 478px;
    padding: 20px;
    border-radius: 6px;
    box-sizing: border-box;
    float: left;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}

.sec-content .advertising .title {
    font-size: 24px;
    font-weight: 600;
    color: #fff;
    line-height: 33px;
}

.sec-content .advertising .sub-title {
    font-size: 16px;
    color: #fff;
    line-height: 22px;
    margin-top: 6px;
}

.sec-content .advertising .desc {
    font-size: 14px;
    color: #B2CAFF;
    line-height: 20px;
    padding-bottom: 24px;
    margin-top: 8px;
    border-bottom: 1px dashed #B2CAFF;
}

.sec-content .advertising .scene-title {
    margin-top: 16px;
    font-size: 18px;
    font-weight: 600;
    line-height: 25px;
    color: #fff;
}

.sec-content .advertising .scene-list .scene {
    width: 67px;
    height: 23px;
    line-height: 23px;
    text-align: center;
    float: left;
    margin-top: 10px;
    margin-right: 18px;
    font-size: 12px;
    color: #fff;
    cursor: pointer;
    border-radius: 2px;
    background: rgba(255, 255, 255, .15);
}

.sec-content .advertising .more {
    width: 100%;
    height: 40px;
    border-radius: 4px;
    background: #fff;
    text-align: center;
    line-height: 40px;
    font-size: 14px;
    color: #333;
    margin-top: 20px;
    cursor: pointer;
}

.sec-content .advertising .more a {
    display: block;
    width: 100%;
    height: 100%;
}

.sec-content .advertising .scene-list .scene:nth-child(3n) {
    margin-right: 0;
}

.sec-content .top .tool-list {
    width: 920px;
    float: left;
    padding-left: 26px;
    box-sizing: border-box;
}

.sec-content .tool-list .tool {
    display: block;
    width: 280px;
    height: 140px;
    box-sizing: border-box;
    float: left;
    background: linear-gradient(180deg, #F4F5F8 0%, #FFFFFF 100%);
    box-shadow: 0px 4px 6px 0px #EFF3F9;
    border-radius: 6px;
    border: 2px solid #FFFFFF;
    margin-right: 26px;
    margin-top: 26px;
    overflow: hidden;
}

.sec-content .tool-list .tool .tool-content {
    width: 100%;
    height: 100px;
    position: relative;
    box-sizing: border-box;
    padding: 24px;
}

.sec-content .tool-list .tool .tool-content .text-box .title {
    font-size: 20px;
    font-weight: 600;
    color: #000;
    line-height: 28px;
}

.sec-content .tool-list .tool .tool-content .text-box .desc {
    width: 200px;
    font-size: 16px;
    line-height: 22px;
    margin-top: 5px;
    color: #666;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sec-content .tool-list .tool .tool-more {
    width: 100%;
    height: 40px;
    line-height: 40px;
    box-sizing: border-box;
    padding: 0 24px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: #C3C3C3;
    border-radius: 0 0 6px 6px;
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.sec-content .tool-list .tool .tool-more::before {
    content: '';
    display: block;
    width: 100%;
    height: 100%;
    background: #276AEF;
    z-index: -1;
    position: absolute;
    left: 0;
    top: 0;
    border-radius: 0 0 6px 6px;
    transform: translateY(100%);
    transition: all .5s;
}

.sec-content .tool-list .tool .tool-more .text {
    font-size: 16px;
    line-height: 40px;
}

.sec-content .tool-list .tool .tool-more .icon {
    width: 16px;
    height: 16px;
    background: url(../../images/solution/marketingtools/more_gray.png) no-repeat center/cover;
}

.sec-content .tool-list .tool:hover .tool-more {
    color: #fff;
}

.sec-content .tool-list .tool:hover .tool-more .icon {
    background: url(../../images/solution/marketingtools/more_wihte.png) no-repeat center/cover;
}

.sec-content .tool-list .tool:hover .tool-more::before {
    transform: translateY(0);
}

.sec-content .tool-list .tool .tool-content .img-box {
    width: 40px;
    position: absolute;
    right: 24px;
    top: 24px;
}

.sec-content .tool-list .tool .tool-content .img-box img {
    width: 100%;
}

.sec-content .top .tool-list .tool:nth-child(3n) {
    margin-right: 0;
}

.sec-content .top .tool-list .tool:nth-child(-n+3) {
    margin-top: 0;
}

.sec-content .bottom .tool-list .tool:nth-child(4n) {
    margin-right: 0;
}

.sec-content .bottom .tool-list .tool:nth-child(-n+4) {
    margin-top: 0;
}

.sec-content .bottom {
    display: none;
    margin-top: 26px;
}

.sec-content .more-tool {
    font-size: 16px;
    line-height: 22px;
    color: #444;
    margin-top: 60px;
    text-align: center;
    cursor: pointer;
}

.sec-content .more-tool span {
    vertical-align: middle;
}

.sec-content .more-tool img {
    width: 16px;
    vertical-align: middle;
    margin-left: 6px;
}

.sec-content .more-tool.shrink img {
    transform: rotate(180deg);
}

.hot .item {
    width: 389px;
    height: 176px;
    border-radius: 6px;
    float: left;
    margin-top: 16px;
    margin-right: 16px;
}

.hot .item:nth-child(-n+3) {
    margin-top: 0;
}

.hot .item:nth-child(3n) {
    margin-right: 0;
}

.hot .item  a {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    flex-direction: column;
    position: relative;
    z-index: 1;
    box-sizing: border-box;
    padding-left: 33px;
    overflow: hidden;
    border-radius: 6px;
}

.hot .item .bg-img {
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    z-index: -1;
}

.hot .item .title {
    font-size: 33px;
    color: #fff;
    font-weight: 700;
}

.hot .item .desc {
    font-size: 18px;
    color: #fff;
    margin-top: 12px;
}