.introduction p {
    margin-top: 60px;
    line-height: 36px;
	color: #3b3b3b !important;
    padding-bottom: 50px;
}

.introduction .xian {
    width: 1363px;
    height: 1px;
    margin: 0 auto;
    background-color: #d9d9d9;
}

@media (max-width: 1440px) {
    .introduction .xian {
        width: 100%;
    }
}