.banner{
    background: url(https://www.51cube.com/wp-content/uploads/2019/10/faqs-banner.jpg) no-repeat center;
    background-size: 1920px 500px;
    height: 500px;
    position: relative;
}
.banner .text-box{
    position: absolute;
    transform: translate(-50%,-50%);
    left: 50%;
    top: 50%;
    display: inline-block;
}
.banner .text-box h3{
    color: #fff;
    font-size: 60px;
    margin-bottom: 25px;
    text-align: center;
    position: relative;
    font-weight: 500;
}
.banner .text-box h3::before,.banner .text-box h3::after{
    content: "";
    width: 80px;
    height: 1px;
    display: block;
    position: absolute;
    background: #fff;
}
.banner .text-box h3::before{
    left: -80px;
    top: 50%;
}
.banner .text-box h3::after{
    right: -80px;
    top: 50%;
}
.banner .text-box p{
    color: #fff;
    font-size: 20px;
    text-align: center;
}
.part-title{
    padding: 75px 0 65px;
    color: #333;
    font-size: 32px;
    margin: 0;
    list-style-type: none;
    text-align: center;
}
@media screen and (max-width: 1440px){
    .banner{
        height: 375px;
        background-size: 1440px 375px;
    }
    .banner .text-box h3{
        font-size: 45px;
        margin-bottom: 19px;
    }
    .banner .text-box p{
        font-size: 16px;
    }
    .part-title{
        font-size: 28px;
        padding: 60px 0 48px;
    }
}
@media screen and (max-width: 720px){
    .banner{
        height: 50vw;
        background-size: 192vw 50vw;
    }
    .banner .text-box h3{
        font-size: 6vw;
        margin-bottom: 2vw
    }
    .banner .text-box p{
        font-size: 3vw
    }
    .banner .text-box h3::before,.banner .text-box h3::after{
        width: 8vw;
    }
    .banner .text-box h3::before{
        left: -8vw;
    }
    .banner .text-box h3::after{
        right: -8vw;
    }
    .part-title{
        padding: 8vw 0 6vw;
        font-size: 6vw;
    }
}
@media screen and (max-width: 480px){
}


.bottom{
    padding-bottom: 80px;
}
/**
 * Submenu
 -----------------------------*/
 .faqs-box{
    float: left;
    width: 46%;
}
 .faqs-box:nth-child(odd){
    margin-right: 8%;
}
 .faqs-box .link{
    cursor: pointer;
    height: 57px;
    line-height: 57px;
    font-size: 16px;
    white-space: nowrap;
    -o-text-overflow: ellipsis;
    text-overflow: ellipsis;
    overflow: hidden;
    border-bottom: 1px solid #eee;
    position: relative;
    padding-right: 30px;
    padding-left: 8px;
 }
 .faqs-box .link::after{
    content: "";
    background: url(https://www.51cube.com/wp-content/uploads/2019/10/openIcon.png);
    display: block;
    background-size: 100% 100%;
    width: 12px;
    height: 12px;
    right: 8px;
    top: 23px;
    position: absolute;
    -webkit-transition: .3s;
    -o-transition: .3s;
    -moz-transition: .3s;
    transition: .3s;
 }
 .faqs-box.open .link::after{
    -webkit-transform: rotate(45deg);
    -moz-transform: rotate(45deg);
    -ms-transform: rotate(45deg);
    -o-transform: rotate(45deg);
    transform: rotate(45deg);
 }
 .faqs-box  .submenu{
    display: none;
    font-size: 14px;
    padding:50px;
    background-color: #fafafa;
 }
 .faqs-box .submenu p,.faqs-box .submenu ol li{
   font-size:14px;
 }
@media(max-width: 992px){
    .accordion{
        padding:0 10px;
    }
    .faqs-box{
        width: 100%;
    }
    .faqs-box:nth-child(odd){
        margin-right: 0;
    }
}
@media(max-width: 720px){
    .faqs-box .link{
        height: 12vw;
        line-height: 12vw;
        font-size: 4vw;
    }
    .faqs-box .link::after{
        width: 3vw;
        height: 3vw;
        top: 4.5vw;
    }
    .faqs-box .submenu{
        padding:4vw;
        font-size: 3.5vw;
    }
    .faqs-box .submenu p,.faqs-box .submenu ol li{
        font-size:3.5vw;
    }
  }