body {
    margin: 0;
    padding: 0;
    font-family: \5FAE\8F6F\96C5\9ED1;
    font-size: 14px;
    line-height: 1.1;
    background-color: #f7f8f9;
}
html{min-width: 1200px;} 
li{list-style-type: none;}
ul{padding-inline-start: 0px;}
a {text-decoration: none;}
header {
    padding: 0px;
    flex-direction: row;
    align-items: center;
    box-shadow: -1px 8px 20px 0px #a4b8ff2b;
    border: none;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 9999;
    background-color: #fff;
}
.logo{float: left;}
.logo span{float: left; position:absolute; top: 4px;} 
.logo span a{ margin-right: 10px; text-decoration: none;
    color: #999;
    font-size: 14px;}
.logo span a:hover{color: red;}    
.ad{float: left;
    position: absolute;
    top: 45px;
    margin-left: 196px;} 
.ad i{padding: 1px 4px; background: #ff0000; color: #ffffff; font-size: 12px; margin-right: 8px; }  
.ad a{color: #ff0000;
    font-size: 16px;
    margin-right: 20px;}    
.ad a:hover{color: #057915;}   
.logo img{ width: 120px;  margin-top: 38px;}     
.cdan {
    width: 100%; background-color: #1f2a3b;
}
.top {
    width: 1200px; margin: 0 auto; height: 80px;}
/* 设置导航栏样式 */
nav {
    width: 1200px;
    height: 32px;
    line-height: 32px;
margin: 0 auto;
background-color: #1f2a3b;
color: #fff;
/* padding: 10px; 
display: flex; */
justify-content: space-between;
align-items: center;
font-size: 15px;
}
nav span{float: right;  background-color: #637fe4;  padding: 0 10px;}
nav span a{float: right; margin-right: 0px; color: #ffffff;}
nav span a:hover{color: #f7e018;}
nav a{ text-decoration: none; color: #fff; margin-right: 15px; }
nav a:hover{ color: #fffb25; }
/* 设置下拉菜单样式 */
.dropdown {
    position: relative;
    display: inline-block;
}
.dropdown a{ color: #ffa825; text-decoration: none; font-size: 15px; }
.dropdown-content {
display: none;
font-size: 12px;
position: absolute;
z-index: 1;
background-color: #285192;
min-width: 70px;
box-shadow: 0px 8px 16px 0px rgb(0 0 0 / 20%);
padding: 2px 4px;
border-radius: 0 0 5px 5px;
}
.dropdown-content a{ margin-right: -15px;}
/* 鼠标悬停时显示下拉内容 */
.dropdown:hover .dropdown-content {
   display: block; 
}

/* 调整下拉内容链接样式 */
.dropdown-content a { font-size: 14px;
   color:#ffffff; 
   text-decoration:none; 
   display:block;  
   line-height: 24px;
}

/* 调整鼠标悬停时链接背景颜色和字体颜色 */
.dropdown-content a:hover { 
  color:#f7ff8d; 
}

/*底部*/
.foot {
	width: 100%;
	height: 373px;
	background: #1f2a3b url(https://www.ovo.com.cn/img/bg.png) no-repeat center center;
    padding-bottom: 15px;
    color: #ffffff; float: left;
}
.foot .foot_con {
	width: 1200px;
	height: 345px;
	margin: 0 auto;
}
.ter4 {
	width: 250px;
	height: 345px;
	float: left;
}
.ter4 ul{ width: 250px; line-height: 30px; font-size: 15px;     padding-inline-start: 0px;}
.ter4 ul span{ font-size: 18px; font-weight: 600; line-height: 40px; }
.ter4 ul li{height: 30px; line-height: 30px; list-style: none;}
.ter4 ul li a{ color: #ffffff;}
.ter4 img {
    margin-top: 35px;
    width: 145px;
}
.ter3 {
	background: url(../images/ter01.jpg) no-repeat left 87px;
	width: 300px;
	height: 308px;
	float: left;
}
.ter3 span {
	display: block;
	font-size: 18px;
	color: #ffffff;
	font-weight: bold;
	margin-top: 55px;
}
.ter3 img {
	width: 140px;
	height: 140px;
	margin-top: 40px;
}
.ter2 {
    width: 790px;
    height: 345px;
    float: left;
    margin-left: 30px;
    padding-left: 20px;
    padding-right: 20px;
    border-left: 1px #ffffff2e dotted;
    border-right: 1px #ffffff2e dotted;
}
.ter2 ul {float: left; width: 798px;  margin-top: -5px; font-size: 14px;}
.ter2 ul a{ color: #d6d6d6; margin-right: 10px; line-height: 24px; font-size: 14px;}
.ter2 ul a:hover{ color: #fff67f;}
.ter2 span {
	width: 350px;
	font-size: 18px;
	color: #ffffff;
	margin-top: 40px;
	display: block;
	font-weight: bold;
}
.ter2 p {
    font-size: 18px;
    color: #ffffff;
    margin-top: 40px;
    font-weight: bold;
}
.ter2 p a {
	color: #a8a8a8;
}
.ter2 p a:hover {
	color: #d2030f;
}
.ter1 {
	width: 60px;
	height: 308px;
	float: right;
	background: url(../images/ter01.jpg) no-repeat left 87px;
}
.ter1 p {
	width: 60px;
	font-size: 18px;
	color: #ffffff;
	margin-top: 40px;
	font-weight: bold;
}
.ter1 ul {
    margin-top: -8px;
}
.ter1 ul li {
	width: 60px;
	float: left;
}
.ter1 ul li a {
	color: #d6d6d6;
    line-height: 32px;
    font-size: 15px;
}
.ter1 ul li a:hover {
	color: #d2030f;
}
.copy {
	width: 100%;
	height: 41px;
	background: #1d1d1d; border-top: 1px solid #363636;
}
.copy_box {
	width: 1200px;
	height: 40px;
	margin: 0 auto;
}
.copy_box p.copy1 {
	font-size: 15px;
	color: #ffffff;
	line-height: 40px;
	float: left;
}
.copy_box p.copy2 {
	font-size: 15px;
	color: #ffffff;
	line-height: 40px;
	float: right;
}
.copy_box p.copy2 a {
	font-size: 15px;
	color: #ffffff;
}
.copy_box p.copy2 a:hover {
	color: #d2030f;
}
.about{    width: 1200px;
    margin: 0 auto;
    line-height: 41px;
    text-align: center;
    border-top: 1px #ffffff1a dotted;}
.about a{ color: #ffffff; margin-left: 10px; margin-right: 10px; text-align: center;}
.about a:hover{ color: #f3ff8a; text-align: center;}