body {
    background: #F8F9FB;
    color: #303133;
}

/* BANNER图 */
.t-banner {
    height: 540px;
    background: url(../images/banner_tab.jpg) no-repeat center center;
    background-size: cover;
    position: relative;
}

.banner-box {
    width: 1200px;
    height: 100%;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
}

.banner-box2,
.solution-title {
    display: none;
}

.banner-text {
    width: 600px;
    position: absolute;
    top: 50%;
    left: 0;
    transform: translate(0, -50%);
}

.banner-text h1 {
    font-size: 60px;
    font-weight: bold;
    color: #19293A;
    padding: 20px;
    display: block;
}

.banner-text span {
    font-size: 16px;
    padding: 15px;
    display: block;
}

/* 方案列表 */
.solution-item {
    height: calc(100vh - 80px);
    position: relative;
}

.solution-bg {
   width: 100%;
   height: 550px;
   position: absolute;
   bottom: 0;
   left: 0;
   padding-left: 250px;
   background-size: cover !important;
   display: flex;
   flex-direction: column;
   justify-content: center;
}

.solution-bg h1 {
    font-size: 50px;
    font-weight: bold;
}

.solution-desc {
    margin-top: 10px;
    font-size: 22px;
}

.solution-content {
    display: flex;
    align-items: flex-start;
    height: 100%;
    position: relative;
    z-index: 1;
}

/* 导航 */
.nav-list {
    width: 470px;
    background: #FFFFFF;
}

.nav-item {
    height: 60px;
    border: 1px solid #F2F3F9;
    padding-right: 50px;
    line-height: 60px;
    font-size: 15px;
    font-weight: bold;
    text-align: right;
    position: relative;
}

.nav-icon {
    display: none;
    /* width: 130px; */
    height: 100%;
    position: absolute;
    right: 0;
    top: 0;
}

.nav-item:hover {
    color: #FF4C15;
}

.nav-active {
    background: #FF4C15;
    color: #FFF;
}

.nav-item.nav-active:hover {
    color: #FFF;
}

.nav-item:hover .nav-icon,
.nav-active .nav-icon {
    display: block;
}

/* 子方案 */
.entrance-box {
    width: calc(100% - 472px);
    height: 100%;
}

.entrance-scroll {
    margin: 0 auto;
    width: 750px;
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
}

.entrance-list {
    margin: 0 auto;
    width: 715px;
    display: flex;
    flex-wrap: wrap;
    align-items: stretch;
    padding: 10px 0;
}

.entrance-item {
    width: 350px;
    background: #FFFFFF;
    border-radius: 10px 10px 10px 10px;
    padding: 30px;
    margin-bottom: 15px;
    overflow: hidden;
    position: relative;
    display: block;
    height: auto !important;
}

.entrance-item:nth-child(2n) {
    margin-left: 15px;
}

.entrance-item:hover {
    box-shadow: 0px 4px 20px 0px rgba(255,76,21,0.1);
    border: 1px solid #FF4C15;
}

.entrance-item:hover .entrance-name {
    color: #FF4C15;
}

.entrance-item:hover .more-icon {
    display: block;
}

.entrance-name {
    font-size: 25px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.entrance-desc {
    margin-top: 20px;
    font-size: 15px;
}

.more-icon {
    width: 20px;
    height: 20px;
    display: none;
}

.entrance-block {
    height:150px;
    margin-top:10px;
}

.entrance-logo {
    width: 350px;
    height: 180px;
    position: absolute;
    left: 0;
    bottom: 0;
}

@media screen and (max-width:768px) {

    .t-banner {
        height: 250px;
        background: url(../images/mobile/m_tab.png) no-repeat center center;
        background-size: cover;
    }

    .t-banner .banner-box,
    .solution-content .nav-list,
    .solution-bg {
        display: none;
    }

    .banner-box2 {
        display: block;
        background: #FFFFFF;
        padding-top: 20px;
    }

    .banner-text2 {
        text-align: center;
        margin-bottom: 10px;
    }

    .banner-text2 h1 {
        font-size: 24px;
        font-weight: bold;
        margin-bottom: 10px;
    }

    .banner-text2 span {
        font-size: 13px;
        width: 145px;
        display: inline-block;
    }

    .nav-list {
        width: 100%;
        display: flex;
        flex-wrap: wrap;
    }

    .nav-item {
        width: 50%;
        height: 40px;
        border: 1px solid #F2F3F9;
        padding: 0;
        text-align: center;
        line-height: 40px;
        font-size: 12px;
        font-weight: bold;
    }

    .nav-item:hover .nav-icon {
        display: none;
    }

    .nav-active .nav-icon {
        display: none;
    }

    .solution {
        background: #F2F3F9;
    }

    .solution-item {
        width: 100%;
        height: auto;
        padding: 20px 10px 10px 10px
    }

    .solution-title {
        display: block;
        font-size: 13px;
        text-align: center;
    }

    .solution-title h1 {
        font-size: 16px;
        font-weight: bold;
        margin-bottom: 10px;
    }

    .solution-content {
        display: block;
        height: auto;
    }

    .entrance-box,
    .entrance-scroll {
        width: 100%;
        height: auto;
    }

    .entrance-list {
        width: 100%;
    }

    .entrance-item {
        width: calc(50% - 5px);
        margin-bottom: 10px;
        padding: 20px;
    }

    .entrance-item:nth-child(2n) {
        margin-left: 10px;
    }

    .entrance-name {
        font-size: 14px;
    }

    .entrance-desc {
        font-size: 12px;
        margin-top: 10px;
        text-overflow: -o-ellipsis-lastline;
        overflow: hidden;
        text-overflow: ellipsis;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        line-clamp: 2;
        -webkit-box-orient: vertical;
    }

    .entrance-block {
        height: 70px;
        margin-top: 5px;
    }

    .entrance-logo {
        width: 100%;
        height: 90px;
    }
}