@charset 'utf-8';
body { font-family: '微软雅黑', Arial; background: #fff }

h2.main_title { text-align: center; font-weight: 400; padding-bottom: 39px; background: url(../images/t_bg.png) no-repeat center bottom; line-height: 0 }
h2.main_title a {display: block;font-size: 40px;line-height: 100%;color: #000;}
h2.main_title span { display: block; font-size: 20px; line-height: 100%; color: #7d7d7d; margin-top: 12px }
.seven { background: url(../images/seven_bg.jpg) no-repeat center top; padding-top: 90px }
.seven .content { height: 765px; position: relative }
.seven_info { position: absolute; bottom: 30px; left: 448px }
.seven_info h3 { font-size: 38px; line-height: 42px; color: #333; margin-bottom: 15px }
.seven_info p { height: 50px; position: relative; padding-left: 54px; font-size: 20px; line-height: 50px; color: #333 }
.seven_info p img { position: absolute; width: 30px; top: 10.5px; left: 0 }
.seven_con dl { position: absolute; width: 187px; height: 232px }
.seven_con dt { width: 187px; height: 232px; position: relative; line-height: 0; padding-top: 64px; -webkit-box-sizing: border-box; -moz-box-sizing: border-box; box-sizing: border-box; text-align: center; background: url(../images/seven_bg1.png) no-repeat center 5px; -o-transition: all .3s ease; transition: all .3s ease }
.seven_con dt img { width: 45px; margin: 0 auto; opacity: 0; -o-transition: all .3s ease; transition: all .3s ease; position: absolute; top: 50px; left: 50%; margin-left: -22.5px }
.seven_con dt h4 { font-size: 26px; line-height: 32px; color: #fff; -o-transition: all .3s ease; transition: all .3s ease; width: 100%; top: 70px; position: absolute; left: 3px }
.seven_con dd { 
    /*display: none; position: absolute; width: 491px; height: 422px; background: url(../images/seven_bg3.png) no-repeat center top; padding-left: 52px; padding-right: 41px; -o-transition: all .3s ease; transition: all .3s ease; -webkit-box-sizing: border-box; -moz-box-sizing: border-box; box-sizing: border-box;*/
    display: none;
    position: absolute;
    padding-left: 52px;
    padding-right: 41px;
    -o-transition: all .3s ease;
    transition: all .3s ease;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    background: #fff;
    padding: 20px 16px 16px;
    border-radius: 4px;
    border: 1px solid #e6e6e6;
    box-shadow: 0 0 30px 0 rgba(0,0,0,.16);
    line-height: 0;
}
.seven_con dd:before{
        box-sizing: content-box;
    width: 0px;
    height: 0px;
    position: absolute;
    top: 105px;
    left: -16px;
    padding: 0;
    border-right: 8px solid #FFFFFF;
    border-top: 8px solid transparent;
    border-bottom: 8px solid #fff;
    border-left: 8px solid transparent;
    display: block;
    content: '';
    z-index: 12;
}
.seven_con dd:after{
    box-sizing: content-box;
    width: 0px;
    height: 0px;
    position: absolute;
    top: 104px;
    left: -18px;
    padding: 0;
    border-right: 9px solid #e6e6e6;
    border-top: 9px solid transparent;
    border-bottom: 9px solid #e6e6e6;
    border-left: 9px solid transparent;
    display: block;
    content: '';
    z-index: 10;
}
.seven_con dl:nth-child(5) dd:before,.seven_con dl:nth-child(6) dd:before,.seven_con dl:nth-child(7) dd:before{
    left: auto;
    right:-16px;
    border-right: 8px solid transparent;
    border-top: 8px solid transparent;
    border-bottom: 8px solid #fff;
    border-left: 8px solid #FFF;
}
.seven_con dl:nth-child(5) dd:after,.seven_con dl:nth-child(6) dd:after,.seven_con dl:nth-child(7) dd:after{
    left:auto;
    right: -18px;
    border-right: 9px solid transparent;
    border-top: 9px solid transparent;
    border-bottom: 9px solid #e6e6e6;
    border-left: 9px solid #e6e6e6;
}
.seven_con dd p { 
    /*font-size: 16px; line-height: 28px; color: #333; padding-left: 34px; background: url(../images/seven_icon.png) no-repeat 12px 8.5px;*/
    font-size: 16px;
    line-height: 34px;
    color: #333;
    padding-left: 22px;
   
    
    position: relative;
    
}
.seven_con dd p:nth-child(odd){
    background: linear-gradient(90deg,rgba(255,255,255,1) 0%,rgba(242,244,247,1) 100%);
}
.seven_con dd p:before{
    position: absolute;
    content:"";
    width: 14px;height: 14px;
     background: url(../images/seven_icon.png) no-repeat center;
     left: 0;
     top:10px;
}
.seven_con dd img { width: 392px; 
/*height: 199px;*/
margin-top:16px; }
.seven_con dl:nth-child(1) { left: -7px; bottom: -21px }
.seven_con dl:nth-child(1) dd { 
    /*padding-top: 71px; */
z-index: 2; top: -45px; left: 190px }
.seven_con dl:nth-child(1) dd p{background:none;}
/*.seven_con dl:nth-child(1) dd img { margin-top: 36px }*/
.seven_con dl:nth-child(2) { left: 80px; bottom: 160px }
.seven_con dl:nth-child(2) dd { z-index: 3; top: -45px; left: 190px; 
/*padding-top: 68px*/
}
/*.seven_con dl:nth-child(2) dd img { margin-top: 36px }*/
.seven_con dl:nth-child(3) { left: 251px; bottom: 305px }
.seven_con dl:nth-child(3) dd { z-index: 4; top: -45px; left: 190px; 
/*padding-top: 43px*/
}
/*.seven_con dl:nth-child(3) dd img { margin-top: 35px }*/
.seven_con dl:nth-child(4) { left: 507px; bottom: 373px }
.seven_con dl:nth-child(4) dd { left: 190px; top: -31px; z-index: 5; 
/*padding-top: 30px */
    
}
/*.seven_con dl:nth-child(4) dd img { margin-top: 26px }*/
.seven_con dl:nth-child(5) { right: 251px; bottom: 305px }
.seven_con dl:nth-child(5) dd { z-index: 6; left: -490px; top: -31px; left:-442px;
/*padding-top: 26px; background: url(../images/seven_bg5.png) no-repeat center top*/
}
/*.seven_con dl:nth-child(5) dd img { margin-top: 15px }*/
.seven_con dl:nth-child(6) { right: 80px; bottom: 160px }
.seven_con dl:nth-child(6) dd { 
    /*height: 452px;*/
    z-index: 7; left: -490px; top: -31px; left:-442px;
/*padding-top: 26px; background: url(../images/seven_bg6.png) no-repeat center top*/
}
/*.seven_con dl:nth-child(6) dd img { margin-top: 33px }*/
.seven_con dl:nth-child(7) { right: -7px; bottom: -21px }
.seven_con dl:nth-child(7) dd { 
    /*height: 452px;*/
    z-index: 8; left: -490px; top: -31px; left:-442px;
/*padding-top: 26px; background: url(../images/seven_bg6.png) no-repeat center top*/
}
/*.seven_con dl:nth-child(7) dd img { margin-top: 18px }*/
.seven_con dl:hover dt { background: url(../images/seven_bg2.png) no-repeat center top }
.seven_con dl:hover dt img { opacity: 1; top: 39px }
.seven_con dl:hover dt h4 { top: 90px }
.seven_con dl:hover dd { display: block }

.service {position: relative;overflow: hidden;width: 100%;max-width: 1920px;min-width: 1200px;margin: 0 auto;/* padding-top: 84px; */background: url(../images/service_bg.jpg);/* height: 845px; */}
.service h2 { background-image: url(../images/t_bg2.png); z-index: 3; position: relative }
.service h2 a, .service h2 span {color: #000;}
.service_con {width: 1200px;padding-top: 16px;margin: 0 auto;position: relative;z-index: 3;}
.service_con li {float: left;width: 300px;height: 415px;position: relative;background: rgb(244, 245, 249);border-right: 1px solid #e0e0e0;-webkit-box-sizing: border-box;-moz-box-sizing: border-box;box-sizing: border-box;}
.service_con li .con { width: 300px; height: 415px; -webkit-box-sizing: border-box; -moz-box-sizing: border-box; box-sizing: border-box; -o-transition: all .3s ease; transition: all .3s ease; padding: 48px 24px; position: absolute; left: 0; top: 0 }
.service_con li i { display: block; width: 62px; height: 61px; overflow: hidden; position: relative ;float:left}
.service_con li i img { position: absolute; top: 0; left: 0; width: 62px;  }
.service_con li h3 { font-size: 24px; line-height: 58px; height: 58px; color: #000; font-weight: 700; overflow: hidden; white-space: nowrap; margin-top: 2px; border-bottom: 1px solid #d5d4d4; margin-bottom: 16px }
.service_con li p {font-size: 16px;line-height: 35px;color: #666; padding-left:30px; background-image:url(../images/x.png)}
.service_con li p span { display: block }
.service_con li .more { display: block; display: none; text-align: center; margin: 0 auto; width: 142px; height: 41px; border: 1px solid #fff; -webkit-box-sizing: border-box; -moz-box-sizing: border-box; box-sizing: border-box; font-size: 14px; line-height: 39px; color: #fff; -o-transition: all .3s ease; transition: all .3s ease; margin-top: 40px }
.service_con li .more:hover { width: 150px }
.service_con li:nth-child(1) a.more { margin-top: 68px }
.service_con li:nth-child(22) h4 { font-size: 16px; line-height: 28px; color: #666 }
.service_con li:nth-child(22) p { font-size: 14px; line-height: 20px; color: #999; margin-top: 4px; margin-bottom: 18px }
.service_con li:nth-child(22) p:last-child { margin-bottom: 0 }
.service_con li:nth-child(33) p { font-size: 15px }
.service_con li:nth-child(33) p span { white-space: nowrap }
.service_con li:nth-child(33) a.more { margin-top: 68px }
.service_con li:last-child { border-color: #fff }



.service_con li:nth-child(1).cur .con, .service_con li:nth-child(1):hover .con { background: url(../images/power_bg.jpg) no-repeat center top; top: -55.5px; left: -57.5px; width: 400px; height: 526px; z-index: 2; padding: 103.5px 81.5px 48px; border-color: transparent }
.service_con li:nth-child(1).cur .con i img, .service_con li:nth-child(1):hover .con i img { top: -61px }
.service_con li:nth-child(1).cur .con h3, .service_con li:nth-child(1):hover .con h3 { color: #fff; border-color:#d5d4d4; }
.service_con li:nth-child(1).cur .con h4, .service_con li:nth-child(1):hover .con h4 { color: #fff }
.service_con li:nth-child(1).cur .con p, .service_con li:nth-child(1):hover .con p { color: #fff;padding-left:30px; background-image:url(../images/x2.png) }
.service_con li:nth-child(1).cur .con a.more, .service_con li:nth-child(1):hover .con a.more { display: block }
.service_con li:nth-child(1):nth-child(3).cur .con p, .service_con li:nth-child(1):hover .con p { font-size: 16px }
.service_con li:nth-child(1).cur .con p span, .service_con li:nth-child(1):hover .con p span { margin-bottom: 7px }






.service_con li:nth-child(2).cur .con, .service_con li:nth-child(2):hover .con { background: url(../images/power_bg2.jpg) no-repeat center top; top: -55.5px; left: -57.5px; width: 400px; height: 526px; z-index: 2; padding: 103.5px 81.5px 48px; border-color: transparent }
.service_con li:nth-child(2).cur .con i img, .service_con li:nth-child(2):hover .con i img { top: -61px }
.service_con li:nth-child(2).cur .con h3, .service_con li:nth-child(2):hover .con h3 { color: #fff; border-color:#d5d4d4; }
.service_con li:nth-child(2).cur .con h4, .service_con li:nth-child(2):hover .con h4 { color: #fff }
.service_con li:nth-child(2).cur .con p, .service_con li:nth-child(2):hover .con p { color: #fff;padding-left:30px; background-image:url(../images/x2.png) }
.service_con li:nth-child(2).cur .con a.more, .service_con li:nth-child(2):hover .con a.more { display: block }
.service_con li:nth-child(2):nth-child(3).cur .con p, .service_con li:nth-child(2):hover .con p { font-size: 16px }
.service_con li:nth-child(2).cur .con p span, .service_con li:nth-child(2):hover .con p span { margin-bottom: 7px }






.service_con li:nth-child(3).cur .con, .service_con li:nth-child(3):hover .con { background: url(../images/power_bg3.jpg) no-repeat center top; top: -55.5px; left: -57.5px; width: 400px; height: 526px; z-index: 2; padding: 103.5px 81.5px 48px; border-color: transparent }
.service_con li:nth-child(3).cur .con i img, .service_con li:nth-child(3):hover .con i img { top: -61px }
.service_con li:nth-child(3).cur .con h3, .service_con li:nth-child(3):hover .con h3 { color: #fff; border-color:#d5d4d4; }
.service_con li:nth-child(3).cur .con h4, .service_con li:nth-child(3):hover .con h4 { color: #fff }
.service_con li:nth-child(3).cur .con p, .service_con li:nth-child(3):hover .con p { color: #fff;padding-left:30px; background-image:url(../images/x2.png) }
.service_con li:nth-child(3).cur .con a.more, .service_con li:nth-child(3):hover .con a.more { display: block }
.service_con li:nth-child(3):nth-child(3).cur .con p, .service_con li:nth-child(3):hover .con p { font-size: 16px }
.service_con li:nth-child(3).cur .con p span, .service_con li:nth-child(3):hover .con p span { margin-bottom: 7px }





.service_con li:nth-child(4).cur .con, .service_con li:nth-child(4):hover .con { background: url(../images/power_bg4.jpg) no-repeat center top; top: -55.5px; left: -57.5px; width: 400px; height: 526px; z-index: 2; padding: 103.5px 81.5px 48px; border-color: transparent }
.service_con li:nth-child(4).cur .con i img, .service_con li:nth-child(4):hover .con i img { top: -61px }
.service_con li:nth-child(4).cur .con h3, .service_con li:nth-child(4):hover .con h3 { color: #fff; border-color:#d5d4d4; }
.service_con li:nth-child(4).cur .con h4, .service_con li:nth-child(4):hover .con h4 { color: #fff }
.service_con li:nth-child(4).cur .con p, .service_con li:nth-child(4):hover .con p { color: #fff;padding-left:30px; background-image:url(../images/x2.png) }
.service_con li:nth-child(4).cur .con a.more, .service_con li:nth-child(4):hover .con a.more { display: block }
.service_con li:nth-child(4):nth-child(4).cur .con p, .service_con li:nth-child(4):hover .con p { font-size: 16px }
.service_con li:nth-child(4).cur .con p span, .service_con li:nth-child(4):hover .con p span { margin-bottom: 7px }






.service_bg { position: absolute; width: 100%; height: 969px; top: 0; left: 0 }
.service_bg video { position: absolute; top: 50%; left: 50%; width: auto; height: 100%; -ms-transform: translateX(-50%) translateY(-50%); -moz-transform: translateX(-50%) translateY(-50%); -webkit-transform: translateX(-50%) translateY(-50%); transform: translateX(-50%) translateY(-50%) }
.service_bg:before { position: absolute; left: 0; top: 0; width: 100%; height: 100%; content: ""; background: rgba(0, 0, 0, .6); z-index: 1 }