@charset "UTF-8";
/* css hover效果1 */
.mask-bg {
  position: relative;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.6);
  /* 放大 */
  /* 透明背景 */
  /* 透明 下降 */
  /* 透明 中间 延迟 */
  /* 透明 上升 */
  /* 透明 左边移入 */
  /* 透明 右边移入 */
}

.mask-bg .effect-1 {
  -webkit-transition: all 0.5s ease-in-out;
  -moz-transition: all 0.5s ease-in-out;
  -o-transition: all 0.5s ease-in-out;
  -ms-transition: all 0.5s ease-in-out;
  transition: all 0.5s ease-in-out;
}

.mask-bg:hover .effect-1 {
  -webkit-transform: scale(1.1, 1.1);
  -moz-transform: scale(1.1, 1.1);
  -o-transform: scale(1.1, 1.1);
  -ms-transform: scale(1.1, 1.1);
  transform: scale(1.1, 1.1);
}

.mask-bg .effect-2 {
  width: 100%;
  height: 100%;
  position: absolute;
  overflow: hidden;
  top: 0;
  left: 0;
  -ms-filter: "progid: DXImageTransform.Microsoft.Alpha(Opacity=0)";
  filter: alpha(opacity=0);
  opacity: 0;
  background-color: rgba(0, 0, 0, 0.7);
  -webkit-transition: all 0.4s ease-in-out;
  -moz-transition: all 0.4s ease-in-out;
  -o-transition: all 0.4s ease-in-out;
  -ms-transition: all 0.4s ease-in-out;
  transition: all 0.4s ease-in-out;
  z-index: 9;
}

.mask-bg:hover .effect-2 {
  -ms-filter: "progid: DXImageTransform.Microsoft.Alpha(Opacity=100)";
  filter: alpha(opacity=100);
  opacity: 1;
}

.mask-bg .effect-3 {
  -webkit-transform: translateY(-100px);
  -moz-transform: translateY(-100px);
  -o-transform: translateY(-100px);
  -ms-transform: translateY(-100px);
  transform: translateY(-100px);
  -ms-filter: "progid: DXImageTransform.Microsoft.Alpha(Opacity=0)";
  filter: alpha(opacity=0);
  opacity: 0;
  -webkit-transition: all 0.2s ease-in-out;
  -moz-transition: all 0.2s ease-in-out;
  -o-transition: all 0.2s ease-in-out;
  -ms-transition: all 0.2s ease-in-out;
  transition: all 0.2s ease-in-out;
}

.mask-bg .effect-4 {
  -ms-filter: "progid: DXImageTransform.Microsoft.Alpha(Opacity=0)";
  filter: alpha(opacity=0);
  opacity: 0;
  -webkit-transition: all 0.2s ease-in-out;
  -moz-transition: all 0.2s ease-in-out;
  -o-transition: all 0.2s ease-in-out;
  -ms-transition: all 0.2s ease-in-out;
  transition: all 0.2s ease-in-out;
}

.mask-bg:hover .effect-4 {
  -webkit-transition-delay: 0.1s;
  -moz-transition-delay: 0.1s;
  -o-transition-delay: 0.1s;
  -ms-transition-delay: 0.1s;
  transition-delay: 0.1s;
}

.mask-bg .effect-5 {
  -webkit-transform: translateY(100px);
  -moz-transform: translateY(100px);
  -o-transform: translateY(100px);
  -ms-transform: translateY(100px);
  transform: translateY(100px);
  -ms-filter: "progid: DXImageTransform.Microsoft.Alpha(Opacity=0)";
  filter: alpha(opacity=0);
  opacity: 0;
  -webkit-transition: all 0.2s linear;
  -moz-transition: all 0.2s linear;
  -o-transition: all 0.2s linear;
  -ms-transition: all 0.2s linear;
  transition: all 0.2s linear;
}

.mask-bg .effect-6 {
  -webkit-transform: translateX(-100px);
  -moz-transform: translateX(-100px);
  -o-transform: translateX(-100px);
  -ms-transform: translateX(-100px);
  transform: translateX(-100px);
  -ms-filter: "progid: DXImageTransform.Microsoft.Alpha(Opacity=0)";
  filter: alpha(opacity=0);
  opacity: 0;
  -webkit-transition: all 0.2s linear;
  -moz-transition: all 0.2s linear;
  -o-transition: all 0.2s linear;
  -ms-transition: all 0.2s linear;
  transition: all 0.2s linear;
}

.mask-bg .effect-7 {
  -webkit-transform: translateX(100px);
  -moz-transform: translateX(100px);
  -o-transform: translateX(100px);
  -ms-transform: translateX(100px);
  transform: translateX(100px);
  -ms-filter: "progid: DXImageTransform.Microsoft.Alpha(Opacity=0)";
  filter: alpha(opacity=0);
  opacity: 0;
  -webkit-transition: all 0.2s linear;
  -moz-transition: all 0.2s linear;
  -o-transition: all 0.2s linear;
  -ms-transition: all 0.2s linear;
  transition: all 0.2s linear;
}

.mask-bg:hover .effect-3, .mask-bg:hover .effect-4, .mask-bg:hover .effect-5, .mask-bg:hover .effect-6, .mask-bg:hover .effect-7 {
  -ms-filter: "progid: DXImageTransform.Microsoft.Alpha(Opacity=100)";
  filter: alpha(opacity=100);
  opacity: 1;
  -webkit-transform: translate(0px);
  -moz-transform: translate(0px);
  -o-transform: translate(0px);
  -ms-transform: translate(0px);
  transform: translate(0px);
}

/*index*/
.top {
  -moz-animation: fadeInDown .6s 0s ease-out both;
  -ms-animation: fadeInDown .6s 0s ease-out both;
  animation: fadeInDown .6s 0s ease-out both;
}

.section {
  -webkit-animation: fadeInUp .6s 1s ease-out both;
  -moz-animation: fadeInUp .6s 1s ease-out both;
  -ms-animation: fadeInUp .6s 1s ease-out both;
  animation: fadeInUp .6s 1s ease-out both;
}

.nav-btn {
  -webkit-transition: all .4s ease-in-out;
  -moz-transition: all .4s ease-in-out;
  transition: all .4s ease-in-out;
  -ms-transition: all .4s ease-in-out;
}

.nav-btn i {
  -webkit-transition: all .4s ease-in-out;
  -moz-transition: all .4s ease-in-out;
  transition: all .4s ease-in-out;
  -ms-transition: all .4s ease-in-out;
}

.nav-btn.nav-btn-hover i:nth-of-type(1) {
  -webkit-transform: rotate(225deg) translate(-0.1rem, -0.1rem);
  -moz-transform: rotate(225deg) translate(-0.1rem, -0.1rem);
  transform: rotate(225deg) translate(-0.1rem, -0.1rem);
  -ms-transform: rotate(225deg) translate(-0.1rem, -0.1rem);
}

.nav-btn.nav-btn-hover i:nth-of-type(2) {
  -webkit-transform: rotate(225deg) translate(0.02rem, 0.03rem);
  -moz-transform: rotate(225deg) translate(0.02rem, 0.03rem);
  transform: rotate(225deg) translate(0.02rem, 0.03rem);
  -ms-transform: rotate(225deg) translate(0.02rem, 0.03rem);
  opacity: 0;
}

.nav-btn.nav-btn-hover i:nth-of-type(3) {
  -webkit-transform: rotate(-225deg) translate(-0.15rem, 0.15rem);
  -moz-transform: rotate(-225deg) translate(-0.15rem, 0.15rem);
  transform: rotate(-225deg) translate(-0.15rem, 0.15rem);
  -ms-transform: rotate(-225deg) translate(-0.15rem, 0.15rem);
}

.nav-btn2.nav-btn-hover i:nth-of-type(1) {
  -webkit-transform: rotate(225deg) translate(-0.115rem, -0.115rem);
  -moz-transform: rotate(225deg) translate(-0.115rem, -0.115rem);
  transform: rotate(225deg) translate(-0.115rem, -0.115rem);
  -ms-transform: rotate(225deg) translate(-0.115rem, -0.115rem);
}

.nav-btn2.nav-btn-hover i:nth-of-type(2) {
  -webkit-transform: rotate(225deg) translate(0.02rem, 0.03rem);
  -moz-transform: rotate(225deg) translate(0.02rem, 0.03rem);
  transform: rotate(225deg) translate(0.02rem, 0.03rem);
  -ms-transform: rotate(225deg) translate(0.02rem, 0.03rem);
  opacity: 0;
}

.nav-btn2.nav-btn-hover i:nth-of-type(3) {
  -webkit-transform: rotate(-225deg) translate(-0.165rem, 0.165rem);
  -moz-transform: rotate(-225deg) translate(-0.165rem, 0.165rem);
  transform: rotate(-225deg) translate(-0.165rem, 0.165rem);
  -ms-transform: rotate(-225deg) translate(-0.165rem, 0.165rem);
}

.nav-list.nav-show {
  -webkit-animation: bounceInDown .5s 0s ease-in-out both;
  -moz-animation: bounceInDown .5s 0s ease-in-out both;
  -ms-animation: bounceInDown .5s 0s ease-in-out both;
  animation: bounceInDown .5s 0s ease-in-out both;
}

.nav-list.nav-hide {
  -webkit-animation: fadeOutUp .5s 0s ease-in-out both;
  -moz-animation: fadeOutUp .5s 0s ease-in-out both;
  -ms-animation: fadeOutUp .5s 0s ease-in-out both;
  animation: fadeOutUp .5s 0s ease-in-out both;
}

.nav-bg {
  -webkit-transition: height .5s ease;
  -moz-transition: height .5s ease;
  transition: height .5s ease;
  -ms-transition: height .5s ease;
}

.play-btn {
  -webkit-animation: fadeInUp .6s .5s ease-out both;
  -moz-animation: fadeInUp .6s .5s ease-out both;
  -ms-animation: fadeInUp .6s .5s ease-out both;
  animation: fadeInUp .6s .5s ease-out both;
}

.bignav.bignav_ani a {
  opacity: 1;
  -webkit-animation: fadeInUp .4s .8s ease-out both;
  -moz-animation: fadeInUp .4s .8s ease-out both;
  -ms-animation: fadeInUp .4s .8s ease-out both;
  animation: fadeInUp .4s .8s ease-out both;
}

.bignav.bignav_ani a:nth-of-type(2) {
  -webkit-animation: fadeInUp .4s .9s ease-out both;
  -moz-animation: fadeInUp .4s .9s ease-out both;
  -ms-animation: fadeInUp .4s .9s ease-out both;
  animation: fadeInUp .4s .9s ease-out both;
}

.bignav.bignav_ani a:nth-of-type(3) {
  -webkit-animation: fadeInUp .4s 1s ease-out both;
  -moz-animation: fadeInUp .4s 1s ease-out both;
  -ms-animation: fadeInUp .4s 1s ease-out both;
  animation: fadeInUp .4s 1s ease-out both;
}

.bignav.bignav_ani a:nth-of-type(4) {
  -webkit-animation: fadeInUp .4s 1.1s ease-out both;
  -moz-animation: fadeInUp .4s 1.1s ease-out both;
  -ms-animation: fadeInUp .4s 1.1s ease-out both;
  animation: fadeInUp .4s 1.1s ease-out both;
}

.bignav.bignav_ani a:nth-of-type(5) {
  -webkit-animation: fadeInUp .4s 1.2s ease-out both;
  -moz-animation: fadeInUp .4s 1.2s ease-out both;
  -ms-animation: fadeInUp .4s 1.2s ease-out both;
  animation: fadeInUp .4s 1.2s ease-out both;
}

.bignav.bignav_ani a:nth-of-type(6) {
  -webkit-animation: fadeInUp .4s 1.3s ease-out both;
  -moz-animation: fadeInUp .4s 1.3s ease-out both;
  -ms-animation: fadeInUp .4s 1.3s ease-out both;
  animation: fadeInUp .4s 1.3s ease-out both;
}

.bignav.bignav_ani a:nth-of-type(7) {
  -webkit-animation: fadeInUp .4s 1.4s ease-out both;
  -moz-animation: fadeInUp .4s 1.4s ease-out both;
  -ms-animation: fadeInUp .4s 1.4s ease-out both;
  animation: fadeInUp .4s 1.4s ease-out both;
}

.effect-opacity {
  -webkit-animation: opacity .6s .2s ease-out both;
  -moz-animation: opacity .6s .2s ease-out both;
  -ms-animation: opacity .6s .2s ease-out both;
  animation: opacity .6s .2s ease-out both;
}

@-webkit-keyframes opacity {
  0% {
    opacity: 0;
    filter: alpha(opacity=0);
  }
  100% {
    opacity: 1;
    filter: alpha(opacity=100);
  }
}

@-moz-keyframes opacity {
  0% {
    opacity: 0;
    filter: alpha(opacity=0);
  }
  100% {
    opacity: 1;
    filter: alpha(opacity=100);
  }
}

@-o-keyframes opacity {
  0% {
    opacity: 0;
    filter: alpha(opacity=0);
  }
  100% {
    opacity: 1;
    filter: alpha(opacity=100);
  }
}

@-ms-keyframes opacity {
  0% {
    opacity: 0;
    filter: alpha(opacity=0);
  }
  100% {
    opacity: 1;
    filter: alpha(opacity=100);
  }
}

@keyframes opacity {
  0% {
    opacity: 0;
    filter: alpha(opacity=0);
  }
  100% {
    opacity: 1;
    filter: alpha(opacity=100);
  }
}

@-webkit-keyframes fadeInDown {
  0% {
    opacity: .01;
    -webkit-transform: translate3d(0, -100%, 0);
    filter: alpha(opacity=1);
  }
  100% {
    opacity: 1;
    -webkit-transform: translate3d(0, 0, 0);
    filter: alpha(opacity=100);
  }
}

@-moz-keyframes fadeInDown {
  0% {
    opacity: .01;
    -moz-transform: translate3d(0, -100%, 0);
    filter: alpha(opacity=1);
  }
  100% {
    opacity: 1;
    -moz-transform: translate3d(0, 0, 0);
    filter: alpha(opacity=100);
  }
}

@-o-keyframes fadeInDown {
  0% {
    opacity: .01;
    -o-transform: translate3d(0, -100%, 0);
    filter: alpha(opacity=1);
  }
  100% {
    opacity: 1;
    -o-transform: translate3d(0, 0, 0);
    filter: alpha(opacity=100);
  }
}

@-ms-keyframes fadeInDown {
  0% {
    opacity: .01;
    filter: alpha(opacity=1);
    -ms-transform: translate3d(0, -100%, 0);
  }
  100% {
    opacity: 1;
    filter: alpha(opacity=100);
    -ms-transform: translate3d(0, 0, 0);
  }
}

@keyframes fadeInDown {
  0% {
    opacity: .01;
    transform: translate3d(0, -100%, 0);
    filter: alpha(opacity=1);
  }
  100% {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    filter: alpha(opacity=100);
  }
}

@-webkit-keyframes fadeInUp {
  0% {
    opacity: .01;
    -webkit-transform: translate3d(0, 100%, 0);
    filter: alpha(opacity=1);
  }
  100% {
    opacity: 1;
    -webkit-transform: none;
    filter: alpha(opacity=100);
  }
}

@-moz-keyframes fadeInUp {
  0% {
    opacity: .01;
    -moz-transform: translate3d(0, 100%, 0);
    filter: alpha(opacity=1);
  }
  100% {
    opacity: 1;
    -moz-transform: none;
    filter: alpha(opacity=100);
  }
}

@-o-keyframes fadeInUp {
  0% {
    opacity: .01;
    -o-transform: translate3d(0, 100%, 0);
    filter: alpha(opacity=1);
  }
  100% {
    opacity: 1;
    -o-transform: none;
    filter: alpha(opacity=100);
  }
}

@-ms-keyframes fadeInUp {
  0% {
    opacity: .01;
    filter: alpha(opacity=1);
    -ms-transform: translate3d(0, 100%, 0);
  }
  100% {
    opacity: 1;
    filter: alpha(opacity=100);
    -ms-transform: none;
  }
}

@keyframes fadeInUp {
  0% {
    opacity: .01;
    transform: translate3d(0, 100%, 0);
    filter: alpha(opacity=1);
  }
  100% {
    opacity: 1;
    transform: none;
    filter: alpha(opacity=100);
  }
}

@-webkit-keyframes bounceInDown {
  0%, 60%, 75%, 90%, 100% {
    -webkit-transition-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
  }
  0% {
    opacity: .01;
    -webkit-transform: translate3d(0, -16rem, 0);
    filter: alpha(opacity=1);
  }
  60% {
    opacity: 1;
    -webkit-transform: translate3d(0, 15px, 0);
    filter: alpha(opacity=100);
  }
  75% {
    -webkit-transform: translate3d(0, -8px, 0);
  }
  90% {
    -webkit-transform: translate3d(0, 4px, 0);
  }
  100% {
    -webkit-transform: none;
  }
}

@-moz-keyframes bounceInDown {
  0%, 60%, 75%, 90%, 100% {
    -moz-transition-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
  }
  0% {
    opacity: .01;
    -moz-transform: translate3d(0, -16rem, 0);
    filter: alpha(opacity=1);
  }
  60% {
    opacity: 1;
    -moz-transform: translate3d(0, 15px, 0);
    filter: alpha(opacity=100);
  }
  75% {
    -moz-transform: translate3d(0, -8px, 0);
  }
  90% {
    -moz-transform: translate3d(0, 4px, 0);
  }
  100% {
    -moz-transform: none;
  }
}

@-o-keyframes bounceInDown {
  0%, 60%, 75%, 90%, 100% {
    -o-transition-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
  }
  0% {
    opacity: .01;
    -o-transform: translate3d(0, -16rem, 0);
    filter: alpha(opacity=1);
  }
  60% {
    opacity: 1;
    -o-transform: translate3d(0, 15px, 0);
    filter: alpha(opacity=100);
  }
  75% {
    -o-transform: translate3d(0, -8px, 0);
  }
  90% {
    -o-transform: translate3d(0, 4px, 0);
  }
  100% {
    -o-transform: none;
  }
}

@-ms-keyframes bounceInDown {
  0%, 60%, 75%, 90%, 100% {
    -ms-transition-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
  }
  0% {
    opacity: .01;
    filter: alpha(opacity=1);
    -ms-transform: translate3d(0, -16rem, 0);
  }
  60% {
    opacity: 1;
    filter: alpha(opacity=100);
    -ms-transform: translate3d(0, 15px, 0);
  }
  75% {
    -ms-transform: translate3d(0, -8px, 0);
  }
  90% {
    -ms-transform: translate3d(0, 4px, 0);
  }
  100% {
    -ms-transform: none;
  }
}

@keyframes bounceInDown {
  0%, 60%, 75%, 90%, 100% {
    transition-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
  }
  0% {
    opacity: .01;
    transform: translate3d(0, -16rem, 0);
    filter: alpha(opacity=1);
  }
  60% {
    opacity: 1;
    transform: translate3d(0, 15px, 0);
    filter: alpha(opacity=100);
  }
  75% {
    transform: translate3d(0, -8px, 0);
  }
  90% {
    transform: translate3d(0, 4px, 0);
  }
  100% {
    transform: none;
  }
}

@-webkit-keyframes fadeOutUp {
  0% {
    opacity: 1;
    filter: alpha(opacity=100);
  }
  100% {
    opacity: 0;
    -webkit-transform: translate3d(0, -100%, 0);
    filter: alpha(opacity=0);
  }
}

@-moz-keyframes fadeOutUp {
  0% {
    opacity: 1;
    filter: alpha(opacity=100);
  }
  100% {
    opacity: 0;
    -moz-transform: translate3d(0, -100%, 0);
    filter: alpha(opacity=0);
  }
}

@-o-keyframes fadeOutUp {
  0% {
    opacity: 1;
    filter: alpha(opacity=100);
  }
  100% {
    opacity: 0;
    -o-transform: translate3d(0, -100%, 0);
    filter: alpha(opacity=0);
  }
}

@-ms-keyframes fadeOutUp {
  0% {
    opacity: 1;
    filter: alpha(opacity=100);
  }
  100% {
    opacity: 0;
    filter: alpha(opacity=0);
    -ms-transform: translate3d(0, -100%, 0);
  }
}

@keyframes fadeOutUp {
  0% {
    opacity: 1;
    filter: alpha(opacity=100);
  }
  100% {
    opacity: 0;
    transform: translate3d(0, -100%, 0);
    filter: alpha(opacity=0);
  }
}

@-webkit-keyframes fadeInDown {
  0% {
    opacity: .01;
    -webkit-transform: translate3d(0, -100%, 0);
    filter: alpha(opacity=1);
  }
  100% {
    opacity: 1;
    -webkit-transform: translate3d(0, 0, 0);
    filter: alpha(opacity=100);
  }
}

@-moz-keyframes fadeInDown {
  0% {
    opacity: .01;
    -moz-transform: translate3d(0, -100%, 0);
    filter: alpha(opacity=1);
  }
  100% {
    opacity: 1;
    -moz-transform: translate3d(0, 0, 0);
    filter: alpha(opacity=100);
  }
}

@-o-keyframes fadeInDown {
  0% {
    opacity: .01;
    -o-transform: translate3d(0, -100%, 0);
    filter: alpha(opacity=1);
  }
  100% {
    opacity: 1;
    -o-transform: translate3d(0, 0, 0);
    filter: alpha(opacity=100);
  }
}

@-ms-keyframes fadeInDown {
  0% {
    opacity: .01;
    filter: alpha(opacity=1);
    -ms-transform: translate3d(0, -100%, 0);
  }
  100% {
    opacity: 1;
    filter: alpha(opacity=100);
    -ms-transform: translate3d(0, 0, 0);
  }
}

@keyframes fadeInDown {
  0% {
    opacity: .01;
    transform: translate3d(0, -100%, 0);
    filter: alpha(opacity=1);
  }
  100% {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    filter: alpha(opacity=100);
  }
}

@-webkit-keyframes scale_1 {
  0% {
    opacity: .01;
    -webkit-transform: scale(-1, 1);
    filter: alpha(opacity=1);
  }
  100% {
    opacity: 1;
    -webkit-transform: scale(1, 1);
    filter: alpha(opacity=100);
  }
}

@-moz-keyframes scale_1 {
  0% {
    opacity: .01;
    -moz-transform: scale(-1, 1);
    filter: alpha(opacity=1);
  }
  100% {
    opacity: 1;
    -moz-transform: scale(1, 1);
    filter: alpha(opacity=100);
  }
}

@-o-keyframes scale_1 {
  0% {
    opacity: .01;
    -o-transform: scale(-1, 1);
    filter: alpha(opacity=1);
  }
  100% {
    opacity: 1;
    -o-transform: scale(1, 1);
    filter: alpha(opacity=100);
  }
}

@-ms-keyframes scale_1 {
  0% {
    opacity: .01;
    filter: alpha(opacity=1);
    -ms-transform: scale(-1, 1);
  }
  100% {
    opacity: 1;
    filter: alpha(opacity=100);
    -ms-transform: scale(1, 1);
  }
}

@keyframes scale_1 {
  0% {
    opacity: .01;
    transform: scale(-1, 1);
    filter: alpha(opacity=1);
  }
  100% {
    opacity: 1;
    transform: scale(1, 1);
    filter: alpha(opacity=100);
  }
}