.sub-banner {
    position: relative;
    width: 100%;
    height: 620px;
    background: url(../images/product_service_go_complaint/complaintbanner.jpg) 50% 0 no-repeat;
}

.sub-banner h1 {
    margin: 0;
    line-height: 80px;
    font-weight: 400;
    font-size: 56px;
    text-align: center;
    color: #fff;
}

.sub-banner p {
    margin-top: 24px;
    margin-bottom: 0;
    font-size: 28px;
    font-weight: 400;
    line-height: 44px;
    color: #fff;
}

.sub-banner .sub-banner-inner {
    position: absolute;
    top: 144px;
    left: 0;
    width: 100%;
}

.sub-banner .sub-banner-inner .register {
    display: inline-block;
    margin-top: 56px;
    background-color: #176de6;
    height: 48px;
    line-height: 48px;
    width: 144px;
    border-color: #176de6;
    font-size: 16px;
    border-radius: 0;
    color: #fff;
}

.sub-banner .sub-banner-inner .register:hover {
    background-color: #3f90f2;
    border-color: #3f90f2;
}

/*  content */
#content h1 {
    font-size: 40px;
    font-weight: 400;
    line-height: 56px;
    margin: 0 0 24px;
}
#content p {
    color: #000;
    font-size: 16px;
    font-weight: 400;
    line-height: 24px;
}
#content .first {
    text-align: center;
    padding: 120px 0;
}
#content .first p {
    text-align: center;
}
#content .first img {
    margin: 48px auto 0;
}
#content .second {
    width: 100%;
    padding: 120px 0;
    background: url(../images/product_service_go_complaint/2-banner.png) 50% 0 no-repeat;
}
#content .second h1 {
    color: #fff;
}
#content .second p {
    color: #fff;
    margin-bottom: 8px;
}
#content .second .register {
    border-color: #fff;
    color: #fff;
    margin: 64px 0 0;
}
#content .third {
    text-align: center;
    background: linear-gradient(180deg, rgba(255, 255, 255, 1) 0%, rgba(246, 246, 246, 1) 100%);
    padding: 120px 0;
}
#content .third h1 {
    margin-bottom: 50px;
}

#content .introduce-list .introduce-item {
    margin: 0 auto;
    width: 880px;
    display: flex;
    margin-top: 24px;
    min-height: 104px;
    background: rgba(255, 255, 255, 1);
    box-shadow: 0px 2px 16px 0px rgba(0, 0, 0, 0.1);
    border-radius: 4px;
    overflow: hidden;
}

#content .introduce-list .introduce-item img {
    display: inline-block;
    height: 100%;
    width: 240px;
}

#content .introduce-list .introduce-item .introduce-item-content {
    flex: 1;
    padding: 20px 40px;
}

#content .introduce-list .introduce-item .introduce-item-content p {
    font-size: 16px;
    font-weight: 400;
    line-height: 32px;
    color: #000;
    margin: 0;
}
#content .introduce-list .introduce-item .introduce-item-content .item-04 {
    margin-top: 18px;
}
#content .four {
    padding: 120px 0;
    background: rgba(10, 19, 33, 1);
}
#content .four .container {
    max-width: 920px;
    padding: 0;
}
#content .four h1 {
    color: #fff;
    text-align: center;
    margin-bottom: 48px;
}
#content .four h3 {
    width: 50px;
    height: 50px;
    line-height: 50px;
    font-weight: normal;
    text-align: center;
    margin: 0;
    color: #fff;
    border-bottom: 1px solid #176de6;
}
#content .four ul {
    margin: 0 auto;
    overflow: hidden;
}
#content .four ul li {
    float: left;
    cursor: pointer;
    padding: 0;
    max-width: 256px;
}
#content .four ul li.padding-center {
    margin: 0 74px;
}
#content .four ul li.active h3 {
    background-color: #176de6;
    color: #fff;
}
#content .four ul li.active p {
    color: #fff;
}
#content .four ul li p {
    margin: 34px 0 0 0;
    font-size: 16px;
    line-height: 24px;
    text-align: justify;
    color: rgba(255, 255, 255, 0.45);
}
#content .four .register {
    border-color: #fff;
    color: #fff;
}
#content .five {
    background: linear-gradient(180deg, rgba(255, 255, 255, 1) 0%, rgba(246, 246, 246, 1) 100%);
}
#content .five .img {
    margin: 48px 0 0;
}
#content .five .img img {
    width: 64px;
    height: 64px;
    margin: 0 32px;
}
#content .register {
    display: block;
    width: 120px;
    height: 40px;
    border: 1px solid #176de6;
    color: #176de6;
    line-height: 40px;
    margin: 64px auto 0;
    text-align: center;
}

#content .register:hover {
    color: #fff;
    background-color: #3f90f2;
    border-color: #3f90f2;
}

#content .six {
    padding-top: 100px;
    margin-bottom: 120px;
}

#content .six h2 {
    margin-bottom: 80px;
}

#content .six .customer-list .customer-item {
    display: inline-block;
    padding: 0 46px;
    width: 360px;
}

#content .six .customer-list .customer-item img {
    margin-bottom: 17px;
    width: 200px;
    height: 128px;
}

#content .six .customer-list .customer-item p {
    display: block;
    text-align: center;
    font-size: 16px;
    font-weight: 400;
    line-height: 24px;
    color: #000;
}
@media (min-width: 750px) and (max-width: 991px) {
    .sub-banner h1 {
        font-size: 44px;
    }
    #content h1 {
        font-size: 32px;
    }
    #content .four ul li.padding-center {
        padding: 0 10px;
        margin: 0;
    }
    #content .introduce-list .introduce-item {
        max-width: 760px;
    }
    #content .five .img img {
        margin: 0 24px;
    }
    #content .four ul li {
        max-width: 250px;
    }
}