.list-introduct {
    font-size: 0;
    padding: 30px 0;
}

.list-introduct .item-introduct {
    display: inline-block;
    margin: 0 0.5%;
    width: 24.25%;
    height: 302px;
    padding: 30px;
    border-radius: 3px;
    color: #fff;
    box-shadow: 0 53px 158px rgba(0, 0, 0, 0.15);
    vertical-align: top;
    box-sizing: border-box;
}

.list-introduct .item-introduct:first-child {
    margin-left: 0;
}

.list-introduct .item-introduct:last-child {
    margin-right: 0;
}

.list-introduct .item-introduct.bg-gradient-red {
    box-shadow: 0 53px 158px rgba(254, 71, 71, 0.15);
}

.list-introduct .item-introduct.bg-gradient-yellow {
    box-shadow: 0 53px 158px rgba(255, 191, 30, 0.15);
}

.list-introduct .item-introduct.bg-gradient-green {
    box-shadow: 0 53px 158px rgba(160, 220, 36, 0.15);
}

.list-introduct .item-introduct.bg-gradient-cyan {
    box-shadow: 0 53px 158px rgba(35, 212, 177, 0.15);
}

.list-introduct .item-introduct .title {
    margin: 0;
    font-size: 33px;
    text-align: center;
}

.list-introduct .item-introduct .title:after {
    content: "";
    display: block;
    margin: 30px auto;
    width: 30px;
    height: 2px;
    background: #fff;
}

.list-introduct .item-introduct .detail {
    font-size: 15px;
}

.list-system-function {
    padding: 30px;
    font-size: 0;
}

.list-system-function .item {
    display: inline-block;
    width: 30%;
    height: 100px;
    margin: 70px 1.5% 0;
    font-size: 0;
    vertical-align: top;
}

.list-system-function .item .container-image,
.list-system-function .item .container-text {
}

.list-system-function .item .container-image {
    width: 60px;
}

.list-system-function .item .container-image .img {
    width: 100%;
}

.list-system-function .item .container-text {
    margin-left: 85px;
}

.list-system-function .item .title {
    margin: 0;
    font-size: 25px;
    font-weight: bold;
    color: #996600;
}

.list-system-function .item .detail {
    font-size: 14px;
    color: #666;
}

.container-system-function {
    margin-top: 200px;
}

.container-system-function > .title {
    margin: 40px auto;
    font-size: 50px;
    font-weight: bold;
    text-align: center;
}

.container-system-function .container-control {
    margin-top: 100px;
    text-align: center;
}

.container-system-function .container-control .btn {
    display: inline-block;
    margin: 20px 10px 0;
    font-size: 30px;
    font-weight: bold;
    padding: 20px;
    border-radius: 4px;
    color: #fff;
    background: #8bc9ff;
}