.topnav {
    width: 1200px;
    margin: auto;
    display: flex;
    align-items: center;
    padding: 20px 0;
    font-size: 14px;
}
.clear:after {
    content: '';
    display: block;
    clear: both;
  }
a {
    display: flex;
    align-items: center;
    text-decoration: none; /* 去除默认的下划线 */
    outline: none; /* 去除旧版浏览器的点击后的外虚线框 */
    color: #999999; /* 去除默认的颜色和点击后变化的颜色 */
}
.navactive {
    color: #4A4A4A;
}
.split {
    padding: 0 15px;
}
.skillsbox {
    display: flex;
    align-items: center;
    justify-content: center;
}
.box {
    width: 1200px;
    display: flex;
    justify-content: space-between;
}
.clearfix {
    height: 50px;
}
.skillsleft {
    width: 23.1%;
}
.innersidebar {
    width: 100%;
}
.sidebaritem {
    width: 100%;
    line-height: 50px;
    font-size: 18px;
    border-bottom: 1px #999999 solid;
    cursor: pointer;
}
.sidebaractive {
    color: #CF5543;
}
.skillsright {
    width: 71.7%;
}
.imglogo {
    max-width: 100%;
    height: auto;
    vertical-align: middle;
}
p {
    font-family: 'Open Sans', sans-serif;
    font-weight: 400;
    color: #555555;
    line-height: 24px;
    margin: 0 0 20px;
}
h2 {
    margin-bottom: 30px;
    font-size: 30px;
    font-family: 'Montserrat', sans-serif;
    color: #222;
    font-weight: 600;
    line-height: 1.5;
    margin: 0 0 15px;
    text-rendering: optimizeLegibility;
}
h2:after {
    content: "";
    width: 80px;
    height: 2px;
    display: block;
    margin-top: 15px;
    background-color: #CF5543;
}
.cetext {
    min-height: 146px;
    margin-bottom: 20px;
}
.cetext img {
    width: 240px;
    height: 146px;
    margin-right: 30px;
}
.cetext h5 {
    font-size: 18px;
    font-family: 'Montserrat', sans-serif;
    color: #222;
    font-weight: 600;
    line-height: 1.5;
    margin: 0 0 15px;
    text-rendering: optimizeLegibility;
}
.cert {
    display: flex;
    justify-content: space-between;
    min-height: 256px;
    margin-bottom: 20px;
}
.cert img {
    width: 180px;
    height: 256px;
    margin-right: 30px;
}
.items {
    height: auto;
    margin-top: 20px;
}
.items h3 {
    font-size: 20px;
    font-family: 'Montserrat', sans-serif;
    color: #222;
    font-weight: 600;
    line-height: 1.5;
    margin: 0 0 15px;
    text-rendering: optimizeLegibility;
}
.employee {
    width: 100%;
    min-height: 280px;
    margin-bottom: 30px;
}
.employee img {
    width: 280px;
    height: 280px;
    margin-right: 30px;
}
.employee strong {
    font-weight: bold;
    font-size: 14px;
}


/* 页面样式 */
@media screen and (max-width:900px) {
    .topnav {
        display: none;
    }
    .skillsbox {
        padding: 0 40px;
    }
    .box {
        display: block;
    }
    .skillsleft {
        width: 100%;
    }
    .skillsright {
        width: 100%;
    }
}

@media screen and (max-width:1500px) {
	html{
		font-size: 0.95px;
	}
}
@media screen and (max-width:1400px) {
	html{
		font-size: 0.9px;
	}
}
@media screen and (max-width:1300px) {
	html{
		font-size: 0.85px;
	}
}

@media screen and (max-width:768px) {
	html{
		font-size: 0.4px;
	}
}
@media screen and (max-width:698px) {
	html{
		font-size: 0.36354px;
	}
}
@media screen and (max-width:648px) {
	html{
		font-size: 0.3375px;
	}
}
@media screen and (max-width:608px) {
	html{
		font-size: 0.31666px;
	}
}
@media screen and (max-width:540px) {
	html{
		font-size: 0.28125px;
	}
}
@media screen and (max-width:490px) {
	html{
		font-size: 0.2552px;
	}
}
@media screen and (max-width:414px) {
	html{
		font-size: 0.215625px;
	}
}
@media screen and (max-width:390px) {
	html{
		font-size: 0.20417px;
	}
}
@media screen and (max-width:375px) {
	html{
		font-size: 0.19531px;
	}
}
@media screen and (max-width:360px) {
	html{
		font-size: 0.1875px;
	}
}
@media screen and (max-width:280px) {
	html{
		font-size: 0.14583px;
	}
}