.content{
  width:100%;background-color: #fff; 
}


.content .regAlign {
    font-style: normal;
}
.watch-video-btn-a{background:rgba(0,0,0,0); cursor: pointer}
.watch-video-btn-a,
.watch-video-btn-a .watch-video-btn-a-text,
.watch-video-btn a {
    display: block;
    text-decoration: none;
    text-align: left;
    padding-left:10px;
}
.watch-video-btn-a:hover{
    text-decoration: none;
}

/**基本**/
.watch-video-btn::before,
.watch-video-btn::after {
  position: absolute;
  z-index: -1;
  display: block;
  content: '';
}
.watch-video-btn.top-watch::before,
.watch-video-btn.top-watch::after{
    display:none
}
/**基本**/
.watch-video-btn,
.watch-video-btn::before,
.watch-video-btn::after {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  -webkit-transition: all .4s cubic-bezier(.47, .12, .11, .99);
  transition: all .4s cubic-bezier(.47, .12, .11, .99);
}
.watch-video-btn {
  position: relative;
  z-index: 2; 
  color: #282828; 
  overflow: hidden;
  text-align: center;
}
.watch-video-btn:hover {
  color: #fff;
}
.watch-video-btn::after {
  top: -100%;
  width: 100%;
  height: 100%;
}
.watch-video-btn::after {
    top:0;
    left:-100%;
    width:100%;
    height:100%;
}
.watch-video-btn:hover::after {
  left: 0;
  background-color: #737373;
} 
.watch-video-btn {
    position: relative;
    display: inline-block; 
}
.watch-video-btn.top-watch a {
    position: absolute;
    z-index: 1;
    bottom: -80px;
    left: 50%;
    width: 1024px;
    height: 160px;
    margin-left: -512px;
    cursor: pointer;
    -webkit-transition: background-color .4s cubic-bezier(.47, .12, .11, .99);
    transition: background-color .4s cubic-bezier(.47, .12, .11, .99);
    background: rgba(98, 98, 98, .75);
}
.watch-video-btn.top-watch a:before {
    position: absolute;
    top: 5px;
    left: 5px;
    width: calc(100% - 10px);
    height: calc(100% - 10px);
    content: '';
    -webkit-transition: all .4s cubic-bezier(.47, .12, .11, .99);
    transition: all .4s cubic-bezier(.47, .12, .11, .99);
    background: #626262;
}
.watch-video-btn.top-watch a span {
    font-size: 2.4rem;
    font-weight: bold;
    line-height: 1;
    position: absolute;
    top: 50%;
    left: 50%;
    display: block;
    display: inline-block;
    -webkit-box-sizing: content-box;
    box-sizing: content-box;
    -webkit-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    -webkit-transform-origin: top left;
    -ms-transform-origin: top left;
    transform-origin: top left;
    text-align: left;
    letter-spacing: .1em;
    color: #fff;
}
.watch-video-btn.top-watch a span:after {
    position: absolute;
    top: -8px;
    right: -60px;
    width: 40px;
    height: 40px;
    content: '';
    background: url(../../images/i_play.svg) no-repeat center;
    background-size: 100% auto;
}
.watch-video-btn.top-watch a:after {
    display: none;
}
.watch-video-btn.top-watch {
    width:100%;
    margin-left:0;
    border:0;
    overflow: unset;
    margin-top:8%;
    height: 160px;margin-top: 1%;
}
.watch-video-btn.top-watch a:hover:before {
    /*top: 15px;
    left: 15px;
    width: calc(100% - 30px);
    height: calc(100% - 30px);*/
    transform: scale(0.99,0.96);
}
.watch-video-btn a, 
.watch-video-btn-a .watch-video-btn-a-text { 
    text-decoration: none;
}
.watch-video-btn:hover a,.watch-video-btn:hover a:after, 
.watch-video-btn-a:hover .watch-video-btn-a-text,
.watch-video-btn-a:hover .watch-video-btn-a-text:after  {
    color:#fff;
    transition: 0.3s;
}
.watch-video-btn a:hover {
    color:#fff;
}
/* .watch-video-btn-a .watch-video-btn-a-text:before,
.watch-video-btn a:before {
    display: none;
    content:"";
    position: absolute;
    right: 14.8px;
    top: 52%;
    width: 50px;
    height: 1px;
    background: #737373;
    display: inline-block;
} */
.watch-video-btn-a .watch-video-btn-a-text:after,
.watch-video-btn a:after {
    position: absolute;
    z-index: 1; 
    top: 50%;
    right: 15px;

    width: 32px;
    height: 9px;

    content: '';
    -webkit-transition: right .5s cubic-bezier(.47, .12, .11, .99);
            transition: right .5s cubic-bezier(.47, .12, .11, .99);
    -webkit-transform: translateY(-50%);
        -ms-transform: translateY(-50%);
            transform: translateY(-50%);

    background: url('../../images/i_ar.svg') no-repeat center right;
    background-size: 100% auto;
/*     position: absolute;
    top: 42%;
    right: 15px;
    width: 10px;
    height: 10px;
    content: '';
    border-top: 1px solid #282828;
    border-right: 1px solid #282828;
    -webkit-transform: rotate(45deg);
    transform: rotate(45deg); */
}

.watch-video-btn a:hover:before, 
.watch-video-btn-a:hover .watch-video-btn-a-text:before { 
    /* background: #fff; */
/*     right: 10px;
    background: url('../images/i_ar_btn_bk_on.svg') no-repeat right center;
    background-size: auto 100%; */
}
.watch-video-btn a:hover:after,
.watch-video-btn-a:hover .watch-video-btn-a-text:after {
/*     border-top: 1px solid #fff;
    border-right: 1px solid #fff; */
    right: 10px;
    background: url('../../images/i_ar_btn_bk_on.svg') no-repeat right center;
    background-size: auto 100%;
}
@media screen and (max-width:640px) {
  .watch-video-btn:hover{
      color: #262626;
  }
  .watch-video-btn:hover a, 
  .watch-video-btn:hover a:after, 
  .watch-video-btn-a:hover .watch-video-btn-a-text, 
  .watch-video-btn-a:hover .watch-video-btn-a-text:after{
      color: #262626;
  }
  .watch-video-btn::after {
      top:0;
      left:-100%;
      width:100%;
      height:100%;
  }
  .watch-video-btn:hover::after {
    top: 0;
    background-color: #737373;
  } 
  .watch-video-btn a:hover:after,
  .watch-video-btn-a:hover .watch-video-btn-a-text:after {  
        right: 15px;
        background: url('../../images/i_ar.svg') no-repeat center right;
        background-size: 100% auto;
  }
}
@-webkit-keyframes scrollLine {
    0%,to {
        transform: translateY(0)
    }

    50% {
        transform: translateY(100%)
    }

    50.1% {
        transform: translateY(-100%)
    }
}

@keyframes scrollLine {
    0%,to {
        transform: translateY(0)
    }

    50% {
        transform: translateY(100%)
    }

    50.1% {
        transform: translateY(-100%)
    }
}
.toscroll {
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    font-size: 1.2vw;
    text-transform: uppercase;
    text-align: center;
}

.toscroll span {
    overflow: hidden;
    display: block;
    position: relative;
    margin: 8px auto 0;
    width: 1px;
    height: 1.4vw
}

.toscroll span:before {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    -webkit-animation: scrollLine 2s cubic-bezier(.165,.84,.44,1) infinite;
    animation: scrollLine 2s cubic-bezier(.165,.84,.44,1) infinite
}

.toscroll.color-white {
    color: #fff
}

.toscroll.color-white span:before {
    background-color: #fff
}

.toscroll.color-black {
    color: #272727
}

.toscroll.color-black span:before {
    background-color: #272727
}

.toscroll.color-blue {
    color: #22439c
}

.toscroll.color-blue span:before {
    background-color: #22439c
}
.kv{ 
  background-image: url(../../images/3dspace/3dspace/mv.jpg); padding-bottom: 40%;    position: relative;
      background-size: cover;
    background-position: center;
}  
.kv .title, .kv .txt {
    text-shadow: 0px 0px 0px #000, 0px 0px 0px #000, 2px 2px 4px #000, 0px 0px 0px #000;
}
.kv .title {
    font-size: 3.2vw;
    transform: translate(-50%,-40%);
    position: absolute;
    top: 55%;
    left: 50%;
    color: #fff;
    text-align: center;
    width: 100%;
}
.kv .txt {
    font-size: 1.5vw;
    transform: translate(-50%,4%);
    position: absolute;
    top: 50%;
    line-height: 1.8;
    left: 50%;
    color: #fff;
    text-align: center;
    width: 100%;
}
.pc-image{
  display: block;
}
.sp-image{
  display: none; 
}
.catalog-item{
  padding-top:3rem;
}
.catalog-item:nth-child(even){
  background-color:#fff;
}
.catalog-item:nth-child(odd){
  background-color:#f3f4f8;
}
.list-title{
  margin-bottom: 2rem;
  font-weight: bolder;font-size: 160%;text-align: center;
  width:1024px;
  margin-left: auto;
  margin-right: auto;
}
.list{
  display: flex;
  flex-direction: row;
  align-content: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  width:1024px;
  margin-left: auto;
  margin-right: auto;
}
.list .item{
  width: 48%;margin-bottom:3rem;
}
.list .item .item-title{
  font-size: 100%;
  margin: 1rem 0;
  display: flex;
  font-weight: bolder;
  margin-bottom: 0.5rem;
  flex-direction: row;
  flex-wrap: nowrap;
  align-content: center;
  justify-content: flex-start;
  align-items: center;
}
.list .item .item-title .sub-item-title{
  color:#3252a3;
}
.list .item .sub-item-title{
  margin-left: 1rem;
}
.list .item .item-link{
  border: 1px black solid; 
  padding: 0.2rem 0 0.3rem 1rem; 
  width: 11rem; 
  margin-top: 1rem; 
  display: inline-block;
}
.list .item .text{
  font-size:90%;
}
.list .item .new{
  font-weight: bolder;
  color: red;color: #DD0000;
  margin-left: auto;
  margin-right: 1rem;
  display: inline-block;
}
.list .item .watch-video-btn{  
    z-index: 10;
}
.list .item .watch-video-btn .watch-video-btn-a-text{
    padding: 0;
}
.banner{
  display: flex;
    margin-bottom: 6vw;
    flex-direction: row;
    justify-content: center;
}

.watch-video-btn a{color: #111}
.watch-video-btn a:hover,
.watch-video-btn .watch-video-btn-a:hover{color:#fff;}
@media screen and (max-width:640px) { 
  .content{
    padding-left:0;padding-right:0;    background-color: #fff; 

  }
  .kv{  
    background-image: url(../../images/3dspace/3dspace/mv_sp.jpg); padding-bottom: 128%;
  }   
  .kv .title {
    font-size: 9.06667vw;
    transform: translateY(-50%);
    top: 58%;
    left: 0;
    text-align: center;
    padding: 0 8vw;
  }
  .kv .txt {
    font-size: 3.4vw;
  }
  .pc-image{
    display: none;
  }
  .sp-image{
    display: block; 
  }
  .catalog-item{
    padding-left: 20px;
    padding-right: 20px;
  }
  .list-title{
    font-weight: bolder;width:100%;
  }
  .list{
    width:100%;
  } 
  .list .item{
    width: 100%
  }
  .list .item .item-title{
    font-weight: 600; 
  }
}