/* 主体内容 —— START */
.introduction-main {
	background-color: #F3F5F8;
}

/* 主体内容-区域1 */
.introduction-main .main-one {
	margin-top: 63px;
	margin-bottom: 84px;
	width: 1200px;
}

.introduction-main .main-one .one-desc {
	margin-top: 10px;
	margin-bottom: 27px;
}

.main-one .one-container .container-img {
	width: 500px;
	height: 500px;
}

.main-one .one-container .container-list {
	width: 554px;
}

.one-container .container-list .list-item {
	padding: 45px 36px;
	width: 269px;
	height: 248px;
	border-radius: 4px;
	border: 1px solid #FFFFFF;
	background-color: rgba(255, 255, 255, 0.65);
}

.container-list .list-item .item-title {
	margin-top: 32px;
}
/* end */

/* 主体内容-区域2 */
.introduction-main .main-two {
	padding-top: 40px;
	background-color: #EBEDF3;
}

.main-two .two-container .two-desc {
	margin-bottom: 27px;
}
/* end */

/* 主体内容-区域3 */
.introduction-main .main-three {
	padding-top: 48px;
	padding-bottom: 40px;
	background-color: #FFFFFF;
}

.introduction-main .main-three .three-container {
	width: 500px;
	height: 500px;
}

.main-three .three-container .container-item {
	width: 400px;
	height: 220px;
	background-image: url("../../img/icon51.png");
	background-size: cover;
}

.main-three .three-container .container-item:nth-of-type(1) {
	top: 0;
	left: -305px;
}

.main-three .three-container .container-item:nth-of-type(2) {
	top: 0;
	right: -305px;
}

.main-three .three-container .container-item:nth-of-type(3) {
	bottom: 20px;
	left: -305px;
}

.main-three .three-container .container-item:nth-of-type(4) {
	bottom: 20px;
	right: -305px;
}

.three-container .container-item .item-title {
	top: 6px;
	left: 35px;
}

.three-container .container-item .item-desc {
	top: 66px;
	left: 35px;
	width: 354px;
	line-height: 32px;
}
/* end */

/* 主体内容 —— END */