@charset "utf-8";
*{
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}
body{
	background: white;
	font-family: "微软雅黑", sans-serif;
}

/*头部一*/
.header{
	width:100%;
	max-width: 1920px;
	height:300px;
	display: flex;
	align-items: center;	/* 垂直居中 */
	justify-content: center;	/* 水平居中 */
	margin: 0 auto;
	background:url(../img/classification/bg.jpg) no-repeat;
	background-size: 100% 100%;
}
.header h1{
	font-size: 60px;
	color:gainsboro;
}

/* 导航栏部分 */
.navbar {
    width: 100%;
    background-color: #ffffff;
    z-index: 999;
	padding-top: 20px;
	padding-bottom: 20px;
}
.navbar-container {
    max-width: 1920px;
    height: 100%;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    color: #000000;
    font-size: 40px;
    font-weight: bold;
    text-decoration: none;
	text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}
.pc-nav {
    display: flex;
    list-style: none;
    height: 100%;
}
.pc-nav li {
    position: relative;
    height: 100%;
}
.pc-nav li a {
    display: block;
    padding: 0 20px;
	font-size: 35px;
    color: #000000;
    text-decoration: none;
    transition: background 0.3s;
}
.pc-nav li a:hover {
    background-color: #d9dbdd;
}
.pc-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background-color: #fff;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    list-style: none;
    display: none;
}
.pc-dropdown li a {
    color: #333;
    line-height: 70px;
    padding: 0 20px;
}
.pc-dropdown li a:hover {
    background-color: #f3f4f6;
    color: red;
}
.pc-nav li:hover .pc-dropdown {
    display: block;
}
.hamburger {
    display: none;
    background: none;
    border: none;
    color: black;
    font-size: 24px;
    cursor: pointer;
    padding: 5px;
}
.mobile-menu {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    width: 100%;
    height: calc(100vh - 60px);
    background-color: #fff;
    overflow-y: auto;
}
.mobile-nav {
    list-style: none;
}
.mobile-nav > li {
    border-bottom: 1px solid #e5e7eb;
}
.mobile-nav > li > a {
    display: block;
    padding: 16px 20px;
    color: #333;
    text-decoration: none;
    font-size: 16px;
}
.mobile-dropdown {
    list-style: none;
    background-color: #f9fafb;
    display: none;
}
.mobile-dropdown li a {
    display: block;
    padding: 14px 20px 14px 40px;
    color: #666;
    text-decoration: none;
    font-size: 15px;
    border-bottom: 1px solid #e5e7eb;
}


/* 内容区 */
.inner{
	width: 100%;
	max-width: 1920px;
	margin: 0 auto;
}
.part_two{
	height: 500px;
	color: black;
	margin:0 auto;
	margin-top: 10px;
}
.first_left{
	width: 50%;
	float: left;
}
.first_left img{
	height: 500px;
	width: 100%;
}
.clear_fix:after{
	content: '';
	display: block;
	clear: both;
}
/* .clear_fix{
		clear: both;
	} */
.first_text{
	padding-left:30px ;
	padding-top: 30px;
	float: left;
	width: 50%;
}
.first_text h2{
	font-size: 45px;
	padding-bottom:10px ;
	color: black;
}
.first_text .first_title{
	padding-bottom: 12px;
	font-size: 20px;
}
.first_text p,blockquote{
	width: 90%;
	font-size: 30px;
	letter-spacing: 2px;
	line-height: 40px;
	white-space: pre-wrap;
}
/* 尾部部分样品 */
.mini-footer{
  width: 100%;
  max-width: 1920px;
  background: #f8f9fa;
  color: #6c757d;
  font-size: 30px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 50px;
  padding-bottom: 50px;
}
.mini-footer .copyright{
  font-size: 30px;
  line-height:200px
  color: #6c757d;
}
/* 移动端 */
@media screen and (max-width: 768px) {
	/* 头部 */
	.header{
		display:none;
	}
	/* 导航栏移动端 */
	.navbar{
		padding-top:10px ;
		padding-bottom: 10px;
	}
	.logo{
		font-size: 18px;
	}
	.pc-nav {
	    display: none;
	}
	.hamburger {
	    display: block;
	}
	.part_two{
		height: 200px;
		padding-bottom
	}
	.first_left{
		width: 100%;
		margin:0px;
		padding: 0px;
	}
	.first_left img{
		display: block;
		width: 100%;
		height: auto;
	}
	.first_text{
		display: none;
	}
	.mini-footer {
	  width: 100%;
	}
	.mini-footer .copyright{
		font-size:14px;
	}
}
@media (hover: hover) {
    img:hover {
        opacity: 0.9;
    }
}