.bottom{
			font-family: "microsoft yahei";
			width: 100%;
			background-color: #282828;
			color: #ffffff;
			vertical-align: center;
			padding: 50px 0 20px 0;
			margin-top: 15px;
		}
		.footer {
			background-color: #282828;
			color: #ffffff;
			width: 100%;
			display: flex;
            flex-direction: row;
            flex-wrap: wrap;
			align-items:stretch;
			vertical-align: center;
			padding-bottom: 30px;
		}
		.footer-item{
            margin: 0 auto;
			align-items:baseline;
		}

		.footer ul {
			list-style: none;
		}
		
		.footer ul li {
			margin-top: 16px;
		}
		
		.footer-item .product_item{
			font-weight: lighter;
		}
		
		.footer-item .contact_item{
			font-weight: lighter;
		}
		
		.footer .logo_div{
			text-align: center;
			flex-grow: 2; 
		}
		
		.footer .product_div{
			flex-grow: 2; 
		}
		
		.footer .contact_us{
			flex-grow: 2; 
		}
		
		.footer .focus_us{
			flex-grow: 2; 
		}
		
		.footer .focus_us img:hover{
			width:70%; 
		}
		
		.footer .logo_div .tianji_logo{
			width: 100%;
			max-width: 200px;
		}
		
		.bottom .footer-other{
			font-size: smaller;
			margin: 0 50px;
			border-top: 1px solid #FFFFFF;
		}
		
		
		
		.bottom .footer-other .other-items{
			padding: 10px 0;
			display: flex;
			flex-direction: row;
			flex-wrap: wrap;
			align-items:stretch;
			vertical-align: center;
		}
		
		
		.bottom .footer-other .other-items .other-item{
			text-align: left;
			vertical-align: center;
			margin: 0 auto;
			padding-top:10px;
			flex-grow: 1; 
		}
		
		.bottom .footer-other .other-items .other-item span{
			margin-left: 10px;
		}
		
		.bottom .footer-other .other-items .copyright{
			text-align: right;
			vertical-align: center;
			margin: 0 auto;
			padding-top:10px;
			flex-grow: 2; 
		}