html,
body {
    width: 100%;
    height: 100%;
    background-color: #e5e7e9;
    font-family: "微软雅黑";
}

.main {
    width: 100%;
    height: 100%;
}

.main-content {
	margin: 0px auto; 
    width: 1200px;
    height: 1984px;
    background-color: #fff;
}

.main-head {
	width: 100%;
	height: 200px;
	background-image: url(../img/00001.jpg);
}

.about-us-text ,
.culture-text ,
.development-history {
	height: 102px;
}

.about-us-text > p ,
.culture-text > p,
.development-history-text > p {
	text-align: center;
	font-size: 24px;
	height: 72px;
	line-height: 72px;
	background-image: url(../img/step.png);
	background-repeat: no-repeat;
	background-position: bottom center;
	text-indent: 2px;
	letter-spacing: 2px;
}

.culture-text {
	margin: 52px 0px 36px;
}

.development-history-text {
	margin: 38px 0px;
}

.culture {
	box-sizing: border-box;
	padding: 24px 0px;
	widows: 100%;
	height: 232px;
	background-color: #eee;
}

.culture > ul {
	margin: 0px auto;
	width: 1094px;
	height: 177px;
	font-size: 0px;
}

.culture > ul > li ,
.culture > ul > li > img {
	display: inline-block;
	width: 252px;
	height: 177px;
}

.culture > ul > li {
	margin-right: 28px;
}

.culture > ul > li:last-child {
	margin-right: 0px; 
}

.development-history {
	margin: 0px auto;
	width: 1094px;
	height: 545px;
}

.development-history > ul {
	margin: 0px auto;
	width: 1094px;
	height: 545px;
}

.development-history > ul > li {
	margin-right: 6px;
}

.development-history > ul > li:nth-child(4),
.development-history > ul > li:last-child {
	margin-right: 0px;
}

.development-history > ul > li:nth-child(5),
.development-history > ul > li:nth-child(6),
.development-history > ul > li:nth-child(7) {
	margin-top: 6px;
}

.development-history > ul > li,
.development-history > ul > li > img {
	font-size: 0px;
	display: inline-block;
	width: 265px;
	height: 265px;
}

.development-history > ul > li:last-child,
.development-history > ul > li:last-child > img {
	width: 541px;
}

.about-us {
	position: relative;
	margin: 0px auto;
	width: 1094px;
	height: 476px;
}

.about-us-texts {
	position: absolute;
	padding-top: 13px;
	left: 0px;
	width: 50%;
	height: 100%;
	color: #494949;
}

.about-us-texts > p {
	text-indent: 35px;
	line-height: 36px;
	font-size: 20px;
} 

.about-us-img {
	position: absolute;
	right: 0px;
	width: 50%;
	height: 100%;
	background-image: url(../img/00002.jpg);
	background-repeat: no-repeat;
	background-position: bottom right; 
}

.bold {
	font-weight: bold;
}