/*  pdf文件下载 */

.pdf_list { width: 100%; }

.pdf_list ul { list-style: none; padding: 0; }

.pdf_list ul li {

	width: 23%; 

	height: auto; 

	float: left; 

	margin-right: 2%; 

	margin-bottom: 20px; 

	box-shadow: 0 0 15px rgba(0,0,0,.15);

	transition: all .35s; 				

}

.pdf_list ul li:nth-child(4n) { margin-right: 0; }

.pdf_list ul li .post_title {

	background-image: url(https://www.gmesemi.com/wp-content/uploads/2021/02/QQ%E6%88%AA%E5%9B%BE20210201192657.png);

	background-repeat: no-repeat;

	background-position: 91% 20px;

	background-size: 30px;

	padding: 20px;

	padding-right: 25%;

	min-height: 86px;

	height: 117px;

	font-size: 15px;								

}



.pdf_list ul li .post_title a {

	display: block;

	display: -webkit-box;

    color: #333;

    line-height: 1.34;

    text-decoration: none;

    height: 82px;

    overflow: hidden;

    text-overflow: ellipsis;

    -webkit-line-clamp: 4;

    -webkit-box-orient: vertical;

}



.pdf_list ul li .post_time {

	display: block;

	margin: 0px;

	border-top: 1px solid #eaeaea;

	padding: 15px 20px;

	color: #adadad;

}



.pdf_list ul li:hover { box-shadow: 0 0 35px rgba(0,0,0,.15); transition: all .35s; }







@media  screen and ( max-width:768px)  {

	.pdf_list ul li { width: 100%; float: none; margin-right: 0; }

}



@media only screen and (min-device-width : 768px) and (max-device-width : 1024px)   {

	.pdf_list ul li { width: 48%; margin-right: 4%; float: left; }

	.pdf_list ul li:nth-child(2n) { margin-right: 0; }

}



/*  pdf文件下载-end */