body,dl,dt,ul,ol,h1,h2,h3,h4,input,button,textarea,p,dd{ margin: 0; padding: 0;}
img{border: 0; vertical-align: middle;}
:focus{outline: 0;}
body{line-height: 1.5; font-family:"Microsoft YaHei"}
ol,ul{list-style: none;}
:link,:visited{text-decoration: none;}
table{border-collapse: collapse;border-spacing: 0;}
input,button,textarea,select,option{font-family: inherit;font-size: inherit;font-style: inherit;font-weight: inherit;}
.clearfix:after{content: "";display: block;height: 0;clear: both;visibility: hidden;}
.clearfix{_zoom:1;}
.clear{clear: both;}

.flex{display:flex;}
.flex1{display:flex;justify-content:space-between;flex-wrap:wrap;}
.flex2{display:flex;justify-content: space-between;}
.flex3{display:flex;justify-content: space-between;align-items: center;}
.flex4{display:flex;justify-content:center;align-items: center;}

.clamp_1{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:1;overflow:hidden;}
.clamp_2{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden;}
.clamp_3{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden;}