body,h1,h2,h3,h4,blockquote,p,dl,dt,dd,ul,ol,li,th,td,form,fieldset,legend,button,input,textarea,span{margin:0;padding:0}body,button,input,select,textarea{font:12px/1.75 '微软雅黑','宋体',arial,sans-serif}
button,input,select,textarea,h1,h2,h3,h4{font-size:100%;vertical-align:middle}em,i{font-style:normal}ol,ul,li{list-style:none}table{border-collapse:collapse;border-spacing:0}img,fieldset{border:0;vertical-align:middle}
.clear{font-size:0; line-height:0; height:0; overflow:hidden; clear:both; visibility:hidden}
a{color:#000;text-decoration:none;outline:none}a:hover{color:#f60;text-decoration:none}
.clearfix:after {content:"."; display:block; height:0; visibility:hidden; clear:both; }
.clearfix { *zoom:1; }
*{
  box-sizing: border-box;
}

html,body{
  margin: 0;
  padding: 0;
  position: relative;
}

.c {
  width:98%;
  min-width: 1280px;
  margin: 0 auto;
}

.public{
  position: relative;
  top: 12%;
  left: 14%;
}
.public img{
  width: 16%;
}

.chapter{
  position: relative;
  top: 30%;
  left: 0%;
}
.chapter img{
  width: 1200px;
  height: 430px;
  margin:0 auto;
}

.txt{
  position: relative;
  top: 61.5%;
    left: 86%;
}
.txt img{
  width: 7%;
}
.nippon-container{
  overflow: hidden;
}

.banner{
  background: url(../img/banner.png) no-repeat;
  background-size: cover;
  height: 77px;
  margin: auto;
  z-index: 10;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
}

.banner .f-l{
  float: left;
  width: 78px;
  /* height: 46px; */
  padding: 13px 0;
}

.banner .f-l img{
  width: 100%;
  height: 100%;
}

.banner .nav{
  float: right;
  margin: 0;
  padding: 0;
  /* width: 560px;
  padding: 9px 0;
  display: flex; */
}

.banner .nav-item{
  display: inline-block;
  /* text-align: center;
  flex: 1; */
  /* padding: 8px 0; */
}
.banner .nav-item a{
  display: inline-block;
  /*width: 170px;
  height: 77px;*/
  width:138px;
  height:77px;
}
.banner li:nth-child(1) a{
  background: url(../img/text1.png);
  background-size: 100%;
  background-position:center;
}
.banner li:nth-child(2) a{
  background: url(../img/text2.png);
  background-size: 100%;
  background-position:center;
}
.banner li:nth-child(3) a{
  background: url(../img/text3.png);
  background-size: 100%;
  background-position:center;
}
.banner li:nth-child(4) a{
  background: url(../img/text4.png);
  background-size: 100%;
  background-position:center;
}
.banner li:nth-child(5) a{
  background: url(../img/text5.png);
  background-size: 100%;
  background-position:center;
}
.banner li:nth-child(1) a:hover,.banner li:nth-child(1) a.active{
  background: url(../img/text1h.png);
  background-size: 100%;
  background-position:center;
}
.banner li:nth-child(2) a:hover,.banner li:nth-child(2) a.active{
  background: url(../img/text2h.png);
  background-size: 100%;
  background-position:center;
}
.banner li:nth-child(3) a:hover,.banner li:nth-child(3) a.active{
  background: url(../img/text3h.png);
  background-size: 100%;
  background-position:center;
}
.banner li:nth-child(4) a:hover,.banner li:nth-child(4) a.active{
  background: url(../img/text4h.png);
  background-size: 100%;
  background-position:center;
}
.banner li:nth-child(5) a:hover,.banner li:nth-child(5) a.active{
  background: url(../img/text5h.png);
  background-size: 100%;
  background-position:center;
}

.banner .top-buy{
  display:inline-block;vertical-align: top;padding-top:15px
}

.content{
  width: 100%;
  margin:0 auto;

  position: relative;
  background: #fff no-repeat center top;
}

.content1{
  background-image: url(../img/p1_bg.jpg);
  background-size: cover;
  position: relative;
  text-align: center;
  display: block!important;
  /* height: 1000px!important; */
}

.nav-text {
  font-size: 14px;
  float: left;
  height: 77px;
  line-height: 77px;
  padding-left: 2%;
  cursor: pointer;
  color: #00c7ff;
  font-family: 'my-font2';
  letter-spacing: 3px;
}

.nav-text a {
  color: #00c7ff;
}

.content .box-text {
  font-size: 18px;
  position: absolute;
  left: 21%;
  width: 100%;
  top: 70%;
  color: #fff;
  font-family:' my-font4';
}

h1 {
  font-size: 36px;
  letter-spacing: 2px;
  font-weight: 500;
}
.content .box-text p {
  letter-spacing: 4px;
  margin-bottom: 6px;
}
.content .box-text .box-content1 {
  margin-top: 35px;
}

.play-all{
  position: absolute;
  left: 77%;
  top: 23%;
  cursor: pointer;
}
.play-btn{
  position: absolute;
  cursor: pointer;
  left: -8%;
  top: 20%;
  background: url(../images/pc-play1.png) no-repeat top center;
  width: 21px;
  height: 21px;
  margin: auto;
  outline: none;
  border: none;
}

.play-txt{
  /* background: url(../images/click1.png) no-repeat top center; */
  font-size: 21px;
  color: #fff;
  letter-spacing: 2px;
  width: 200px;
  height: 30px;
  font-family: 'my-font4';
}

.play-con{
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  z-index: 15;
  top: 19%;
}
.play-off{
  position: absolute;
  /* right: 26.5%; */
  left: 100%;
  /* transform: translateX(-75%); */
  top: 0;
  background: url(../images/play-off.png) no-repeat top center;
  width: 30px;
  height: 30px;
  outline: none;
  border: none;
}

.content2{
  background-color:#000;
  background-image: url(../img/p2_bg.jpg);
  background-size: cover;
}

.content3{
  background-image: url(../img/p3_bg.jpg);
  background-size: cover;
}

.content4{
  background-image: url(../img/p3_bg.jpg);
  background-size: cover;
}

.content5{
  background-image: url(../img/p4_bg.jpg);
  background-size: cover;
}

.content6{
  background-image: url(../img/p3_bg.jpg);
  background-size: cover;
}


@media (max-width: 1922px) {

}

@media (max-width:1400px) {

}


.last-img{
  width: 1179px;
  bottom: 0%;
  position: absolute;
  left: 50%;
  margin-left: -590px;
  height: 3.8%;
}
.last-img img{
  position: absolute;
  top: 50%;
  margin-top: -10px;
  left: 0;
}
@keyframes play{
  0%{ opacity: 0.8; transform: rotate(0deg); }
  50%{ opacity: 1; transform: rotate(5deg);}
  100%{ opacity: 0.8; transform: rotate(0deg);}
}
@keyframes play2{
  0%{ opacity: 0.8; transform: rotate(0deg); }
  50%{ opacity: 1; transform: rotate(-5deg);}
  100%{ opacity: 0.8; transform: rotate(0deg);}
}


.video{
  width: 854px;
  height: auto;
}