.product {
    padding-top: 30px;
}

.product-el {
    font-size: 0;
    padding: 30px 0;
}

.product-el-left,
.product-el-right {
    display: inline-block;
    vertical-align: middle;
}

.product-el-left {
    width: 500px;
    padding: 0 70px;
    text-align: center;
}

.product-el-right {
    width: 700px;
    font-size: 16px;
}


.product-link a::after {
    content: "-";
    margin: 0 8px;
}

.product-link a:last-child::after {
    content: '';
    margin: 0;
}



.product-el-left__handle a {
    background-color: #419cf6;
    color: #FFF;
    display: inline-block;
    padding: 5px 10px;
    border-radius: 0 6px 0 6px;
    font-size: 14px;
}

.product-el-left__handle {
    display: flex;
    justify-content: space-between;
}

.product-el-left img {
    width: 100%;
}

.product-el-right .title {
    color: #3c93e5;
    font-size: 20px;
    line-height: 50px;
}

.product-el-right p {
    line-height: 32px;
    text-indent: 2em;
    color: #666666;
}

.product-el-right li {
    line-height: 32px;
    color: #666666;
}

.product-el-right li::before {
    /* padding-left: 20px; */
    content: '';
    display: inline-block;
    vertical-align: middle;
    width: 15px;
    height: 15px;
    background-color: #419cf6;
    border-radius: 50%;
    margin-right: 20px;
}


.product-nav {
    background-color: #cfcece;
    text-align: center;
    line-height: 54px;
    position: sticky;
    top: 80px;
}

.product-nav .w {
    padding: 0 200px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.product #type,
.product #arg,
.product #interface,
.product #app {
    scroll-margin-top: 134px;
}


.product-content h4,
.product-type h4,
.product-interface h4 {
    text-align: center;
    font-size: 20px;
    line-height: 70px;
}

.product-type {
    background-color: #efefef;
    padding: 30px 0 50px;
}

.product-type-content {
    padding-top: 30px;
    font-size: 0;
    display: flex;
    align-items: stretch;
}

.product-type-content__item {
    display: inline-block;
    width: 380px;
    /* height: 200px; */
    background-color: #fff;
    border-radius: 5px;
    box-shadow: 0px 0px 10px 6px #CCC;
    padding: 10px 20px 20px;
    vertical-align: middle;
}

.product-type-content__item:nth-child(2) {
    margin: 0 20px;
}

html {
    scroll-behavior: smooth;
}


.product-type-content__item .title {
    color: #419cf6;
    font-size: 22px;
    text-align: center;
    line-height: 44px;
    margin-bottom: 10px;
}

.product-type-content__item__box {
    text-align: center;
}

.product-type-content__item__text {
    display: inline-block;

}

.product-type-content__item__text p {
    font-size: 16px;
    text-align: left;
    line-height: 36px;
    color: #333333;
}

.product-type-content__item__text p::before {
    content: '';
    display: inline-block;
    vertical-align: middle;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background-color: #000;
    margin-right: 10px;
}


.product-arg .ii {
    font-size: 0;
    display: inline-block;
    width: 49%;
    vertical-align: top;
}

.product-arg .ii table {
    width: 100% !important;
}

.product-arg .ii:last-child {
    margin-left: 1.5%;
}


.product td,
.product th {
    box-sizing: content-box;
}


.product-interface {
    background: url(../images/product-bg.jpg) no-repeat center;
    background-size: 100% 100%;
    padding-bottom: 40px;
}