html,
body,
ul,
li,
dl,
dt,
dd {
	margin: 0;
	padding: 0;
}

a {
	text-decoration: none;
}

ul,
ol,
li {
	list-style: none;
}

.center {
	width: 1200px;
	margin: 0px auto;
}

.flex-center {
	display: flex;
	align-items: center;
}

h1.page-title {
	color: #111;
	font-size: 36px;
	font-weight: bold;
	line-height: 1em;
	margin: 0px;
	text-align: center;
	letter-spacing: 2px;
}


/* banner */
.introduce-banner{
	position: relative;
}
.introduce-banner > img{
	display: block;
	width: 100%;
}
.introduce-banner>p{
	color: #FFF;
	font-size: 88px;
	letter-spacing: 5px;
	margin: 0px;
	text-align: center;
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate( -50% , -50% );
}

/* 关于尚德安全 */
.about{
	overflow: hidden;
}
.about .page-title{
	margin: 63px auto 52px;
}
.about-content{
	display: flex;
	margin-bottom: 60px;
}
.about-text{
	flex: 1;
	margin-right: 19px;
}
.about-text>p{
	color: #333;
	font-size: 16px;
	line-height: 28px;
	text-indent: 2em;
	text-align: justify;
	margin: 0px;
}
.about-text>p:first-child{
	margin-bottom: 5px;
}
.about-content>img{
	display: block;
	width: 600px;
	flex-shrink: 0;
}

/* 企业愿景 */
.hope-container{
	width: 100%;
	min-width: 1200px;
	background: url(../../../img/portal/introduce/hope_bg.jpg) no-repeat;
	background-size: cover;
	background-position: center center;
}
.hope{
	overflow: hidden;
}
.hope .page-title{
	margin: 54px auto 57px;
	color: #FFF;
}
.hope-list{
	margin-bottom: 74px;
	display: flex;

}
.hope-item{
	width: 360px;
	height: 280px;
	background-color: rgba(255,255,255,.6);
	overflow: hidden;
}
.hope-list .hope-item:nth-child(2){
	margin: 0px auto;
}
.hope-item > img{
	display: block;
	width: 58px;
	height: 58px;
	margin: 45px auto 17px;
}
.hope-title{
	width: 126px;
	height: 30px;
	margin:0px auto 15px;
	line-height: 30px;
	text-align: center;
	font-size: 18px;
	color: #FFF;
}

.hope-list .hope-item:first-child .hope-title{
	background-color: #D40000;
}
.hope-list .hope-item:nth-child(2) .hope-title{
	background-color: #23C087;
}
.hope-list .hope-item:last-child .hope-title{
	background-color: #E0731F;
}

.hope-detail{
	margin: 0px;
	font-size: 20px;
	color: #111;
	text-align: center;
	line-height: 33px;
}

/* 公司业务 */
.business-container{
	background-color: #F5F5F5;
	overflow: hidden;
}
.business .page-title{
	margin: 48px auto 36px;
}
.business-list{
	display: flex;
	padding-bottom: 40px;
}
.business-item{
	width: 280px;
}
.business-list .business-item:not(:first-child):not(:last-child){
	margin: 0px auto;
}
.business-item > img{
	display: block;
	width: 100%;
}
.business-title{
	color: #111;
	font-size: 20px;
	font-weight: normal;
	line-height: 1em;
	text-align: center;
	margin: 23px auto 17px;
}

.business-detail{
	width: 255px;
	margin: 0px auto;
	color: #333;
	font-size: 14px;
	line-height: 24px;
	word-break: break-all;
	text-align: justify;
}


/* 学习安全知识，提升安全技能 */
.tips{
	position: relative;
	min-width: 1200px;
}
.tips>img{
	display: block;
	width: 100%;
}
.tips>p{
	margin: 0px;
	line-height: 1em;
	font-size: 40px;
	letter-spacing: 3px;
	text-align: center;
	color: #FFF;
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50% ,-50%);
}

/* 联系我们 */
.contact .page-title{
	margin: 62px auto 45px;
}
.contact-title{
	color: #333;
	font-size: 24px;
	font-weight: normal;
	text-align: left;
	line-height: 1em;
	margin: 0px;
}
.contact-list{
	display: flex;
	margin-top: 35px;
}
.contact-item{
	width: 320px;
	color: #666;
	font-size: 16px;
	padding-bottom: 13px;
	border-bottom: 1px dashed #D1D1D1;
}
.contact-item > img{
	display: block;
	width: 20px;
	margin-right: 15px;
}

.contact-list .contact-item:nth-child(2){
	margin: 0px auto;
}

.company-address{
	width: 500px;
	margin: 35px 0px 33px;
	color: #666;
	font-size: 16px;
	padding-bottom: 14px;
	border-bottom: 1px dashed #D1D1D1;
}
.company-address > img{
	display: block;
	width: 18px;
	margin-right: 15px;
}

/* 地图 */
#map{
	width: 100%;
	height: 448px;
	margin: 0px auto 60px;
}