.menu_box{ width: 100%; height: 85px; background: #FFFFFF; box-shadow: 0 10px 10px -10px rgba(15,150,69,0.4);; position: relative; z-index: 2;}

.menu_content{ width: 1200px; height: 65px; margin: auto; position: relative; top: 10px; z-index: 2;}

.menu_list{ width: auto; height: 65px; float: left; vertical-align: middle; margin-left: 50px; font-size: 22px;}
.menu_list li{ line-height: 65px; margin: 0 50px;  float: left;}
.menu_list li span{ cursor: pointer; color: #000000; line-height: 41px; margin-top: 12px; display: block;}
.menu_list li.active span{ font-weight: bold; color: #4f645a; border-bottom: 3px solid #16a951;}
.menu_list li span:hover{ font-weight: bold;}

.product_box{ width: 100%; height: auto; background: url(../img/bg1.jpg); background-size: 100% 100%; padding: 80px 0 40px 0;}
.product_content{ width: 1200px; height: auto; margin: auto;}

.product_list{ width: 1140px; height: auto; margin-left: 30px; font-size: 0; }
.product_list li{ width: 326px; height: 286px; display: inline-block; margin: 27px; position: relative; -webkit-transition: 1s; transition: 1s;}
.product_list li a{ width: 100%; height: 100%; display: block;}
.img_box{ width: 326px; height: 226px; background: #FFFFFF; position: absolute; left: 0; top: 0; box-shadow:  0 0 8px 0px rgba(15,150,69,0.4);}
.img_box .imgs{ max-width: 300px; max-height: 200px; position: absolute; left: -9999px; top: -9999px; right: -9999px; bottom: -9999px; margin: auto;}
.product_txt{ width: 326px; height: 60px; text-align: center; line-height: 60px; position: absolute; left: 0; top: 226px; font-size: 16px; font-weight: bold; color: #495a52; text-align: center;}

.product_list li:hover{ -webkit-transform: scale(1.1); transform: scale(1.1);}