.major_box{width: 1224px;margin: auto;}
.major_ban{position: relative;z-index: 10;}
.major_ban img{display: block;width: 100%;}
.major_tit{text-align: center;}
.major_tit p{color: #cecece;}
.major_pro{height: 420px;width: 100%;position: relative;background: url(/images/majorbj.jpg)no-repeat 0 0/cover;}
.major_intro{width: 500px;color: #FFFFFF;position: absolute;left: 75px;top: 50%;transform: translateY(-50%);}

@media only screen and (max-width:1440px ) {
	.major_box{width: 1124px;}
	.major_pro{height: 400px;}
	.major_intro{left: 60px;}
}
@media only screen and (max-width:1336px ) {
	.major_box{width: 1024px;}
	.major_pro{height: 350px;}
	.major_intro{left: 50px;}
}
@media only screen and (max-width:1280px ) {
	.major_box{width: 924px;}
}
@media only screen and (max-width:992px ) {
	.major_box{width: 768px;}
	.major_pro{height: 300px;}
	.major_intro{left: 40px;top: 40%;}
}
@media only screen and (max-width:768px ) {
	.major_box{width:100%;padding: 40px 15px 0;box-sizing: border-box;}
	.major_pro{height: 300px;}
	.major_intro{left: 40px;top: 40%;width: 400px;}
}
@media only screen and (max-width:500px ) {
	.major_box{padding: 30px 15px 0;}
	.major_pro{height: 300px;}
	.major_intro{left: 30px;top: 20%;width: 300px;transform: translateY(0);}
}
/*制气列表*/
.gas_list{margin: 15px auto 0;width: 1224px;}
.gas_list li{color: #FFFFFF; width: 189px;float: left;transition: all .3s ease-in;overflow: hidden;height: 189px;}
.gas_list li.active{width: 466px;}
.gas_pro{display: none; width: 466px;height: 100%;padding: 60px 35px 0 45px;box-sizing: border-box;}
.gas_list li.active .gas_pro{display: block;}
.gas_list li:nth-child(1){background: #a1c4f8;}
.gas_list li:nth-child(2){background: #7fb3e6;}
.gas_list li:nth-child(3){background: #b1d5f8;}
.gas_list li:nth-child(4){background: #adc6eb;}
.gas_list li:nth-child(5){background: #184c9a;}
.gas_info{margin-top: 12px;}
.gas_info a{color: #FFFFFF;}
.gas_use{display: block; cursor: pointer; width: 100%;height: 100%;text-align: center; padding: 0 20px; padding-top: 48px;box-sizing: border-box;}
.gas_pic{margin-bottom: 8px; height: 60px;line-height: 60px; width: 100%;text-align: center;}
.gas_pic img{vertical-align: middle;transition: all .3s ease-in;}
.gas_list li.active .gas_use{display: none;}
.gas_list li:hover img{transform: scale(1.05);}
.gas_tit a{display: inline-block; color: #FFFFFF;transform: scale(1); opacity: 0.8;transition: all .3s ease-in;}
.gas_tit a:hover{opacity: 1;transform: scale(1.03);}
@media only screen and (max-width:1440px ) {
	.gas_list li{width: 170px;height: 160px;}
	.gas_list li.active{width: 444px;}
	.gas_list{width: 1124px;}
	.gas_pro{padding: 50px 26px 0 30px;width: 444px;}
	.gas_use{padding-top:28px;}
}
@media only screen and (max-width:1336px ) {
	.gas_list{width: 1024px;}
	.gas_list li{width: 150px;}
	.gas_list li.active{width: 424px;}
	.gas_list li:nth-child(3) .gas_pic img{height: 38px;}
	.gas_pic img{height: 45px;}
	.gas_pro{padding: 45px 25px 0 25px;width: 424px;}
	.gas_use{padding-top: 20px;}
}
@media only screen and (max-width:1280px ) {
	.gas_list{width: 924px;}
	.gas_list li{width: 125px;height: 138px;}
	.gas_list li:nth-child(3) .gas_pic img{height: 33px;}
	.gas_pic img{height: 45px;}
	.gas_pro{padding: 30px 25px 0 25px;width: 424px;}
	.gas_use{padding-top: 15px;}
	.gas_use .font24 {font-size: 18px;}
}
@media only screen and (max-width:992px ) {
	.gas_list{width: 768px;}
	.gas_list li{width: 100%;height: auto;padding: 25px 20px;}
	.gas_list li.active{width: 100%;}
	.gas_list li .gas_pro{display: block;width: 100%;padding: 0;}
	.gas_use{display: none;}
}
@media only screen and (max-width:768px ) {
	.gas_list{width:100%;padding:0 15px;box-sizing: border-box;}
}
/*模式*/
.patt_box{width: 1224px;margin: 40px auto 72px;}
.patt_pic{width:48.2%; float: left;position: relative;overflow: hidden;}
.patt_pic img{transition: all .3s ease-in; display: block;width: 100%;position: relative;z-index: 50;}
.patt_name{position: absolute;color: #FFFFFF; z-index: 100;left: 25px;bottom: 15px;}
.patt_pic:hover img{transform: scale(1.05);}
.patt_pic:nth-of-type(even){float: right;}
@media only screen and (max-width:1440px ) {
	.patt_box{width: 1124px;margin: 40px auto 52px;}
}
@media only screen and (max-width:1336px ) {
	.patt_box{width: 1024px;margin: 30px auto 42px;}
}
@media only screen and (max-width:1280px ) {
	.patt_box{width: 924px;}
}
@media only screen and (max-width:992px ) {
	.patt_box{width: 768px;margin: 25px auto 32px;}
}
@media only screen and (max-width:768px ) {
	.patt_box{width:100%;padding: 0 20px; box-sizing: border-box;}
    .patt_name{left: 20px;}
}
@media only screen and (max-width:500px ) {
	.patt_box{padding: 0 15px;}
	 .patt_pic{width: 100%;margin-top: 20px;}
}<!--耗时1756502390.7113秒-->