html,
body {
  margin: 0;
  padding: 0;
  background: #000;
}
.header_parts {
  width: 100%;
  height: 68px;
  position: fixed;
  z-index: 99;
  top: 0;
  left: 0;
  overflow: hidden;
}
.header_parts .sony_header {
  width: 1920px;
  position: absolute;
  top: -68px;
  left: 50%;
  transition: all 0.4s ease;
  margin-left: -960px;
  min-width: 1200px;
}
.header_parts:hover .sony_header {
  top: 0;
  transition: all 0.4s ease;
}
.page_pc {
  overflow: hidden;
  max-width: 1920px;
  min-width: 1200px;
  margin: 0 auto;
}
.page_pc * {
  margin: 0;
  padding: 0;
  list-style: none;
  border: 0;
  font-family: "Microsoft YaHei", Arial, sans-serif;
}
.page_pc img {
  display: block;
  max-width: 100%;
}
.page_pc video {
  display: block;
  width: 100%;
}
.page_pc sup {
  font-size: 0.6em;
  line-height: 0;
  vertical-align: super;
}
.page_pc :focus {
  outline: auto;
}
.page_pc :focus:not(:focus-visible) {
  outline: none;
}
.page_pc h2 {
  font-size: 54px;
  line-height: 1.2em;
  letter-spacing: 0.05em;
  color: #fff;
}
.page_pc h2 img {
  display: inline-block;
  width: auto;
  height: 0.9em;
  vertical-align: middle;
  margin: 0 0.3em;
}
.page_pc h2 + p {
  font-weight: lighter;
}
.page_pc h3 {
  font-size: 50px;
  line-height: 1.2em;
  color: #fff;
  letter-spacing: 0.05em;
  padding: 0.3em 0.4em;
}
.page_pc h3 .xian {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(to right, #000 2px, transparent 2px), linear-gradient(to bottom, #000 2px, transparent 2px), linear-gradient(to right, #000 2px, transparent 2px), linear-gradient(to bottom, #000 2px, transparent 2px);
}
.page_pc h3 .xian::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 20%;
  padding-top: 20%;
  background: linear-gradient(to bottom right, #0a83d6, #0a83d6 10%, transparent 20%);
  animation: scale 2s linear infinite;
}
.page_pc h4 {
  font-size: 36px;
  color: #fff;
  letter-spacing: 0.05em;
}
.page_pc p {
  font-size: 24px;
  line-height: 1.5em;
  font-weight: normal;
  letter-spacing: 0.05em;
  color: #fff;
  margin-top: 1em;
  text-align: justify;
  text-justify: inter-ideograph;
}
.page_pc a {
  text-decoration: none;
  transition: all 0.3s linear;
}
.page_pc .fadeInDown {
  opacity: 0;
  transform: translateY(50%);
}
.page_pc .fadeInDown.active {
  opacity: 1;
  transform: translate(0, 0);
  transition: all 1s ease-in-out;
}
.page_pc .fadeInDown2 {
  opacity: 0;
  transform: translateY(0, 0);
}
.page_pc .fadeInDown2.active {
  opacity: 1;
  transform: translateY(-50%);
  transition: all 1s ease-in-out;
}
.page_pc .fadeInTop {
  opacity: 0;
  transform: translateY(-50%);
}
.page_pc .fadeInTop.active {
  animation: fadeIn 1s ease-in-out forwards;
}
.page_pc .fadeInLeft {
  opacity: 0;
  transform: translateX(-50%);
}
.page_pc .fadeInLeft.active {
  animation: fadeIn 1s ease-in-out forwards;
}
.page_pc .fadeInRight {
  opacity: 0;
  transform: translateX(50%);
}
.page_pc .fadeInRight.active {
  animation: fadeIn 1s ease-in-out forwards;
}
.page_pc .vidBtn {
  cursor: pointer;
}
.page_pc .vbox01 {
  position: relative;
  min-height: 40vw;
}
.page_pc .vbox01 .v01 {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 6.5em;
  padding-top: 7em;
  font-size: 20px;
  color: #fff;
  opacity: 1;
  letter-spacing: 0.08em;
  text-align: center;
  transition: all 0.5s linear;
}
.page_pc .vbox01 .v01::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  width: 6.5em;
  height: 6.5em;
  border-radius: 50%;
  box-sizing: border-box;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.15);
}
.page_pc .vbox01 .v01::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  width: 0;
  height: 0;
  transform: translate(-20%, 70%);
  border: solid 1.35em transparent;
  border-left: solid 2.1em rgba(255, 255, 255, 0.8);
}
.page_pc .vbox01:hover .v01 {
  opacity: 1;
}
.page_pc .kv {
  position: relative;
  overflow: hidden;
}
.page_pc .kv h1 {
  position: absolute;
  left: 27.5%;
  top: 0;
  width: 45%;
  margin-top: 6.25%;
  text-align: center;
  font-size: 4.6vw;
  color: #fff;
  opacity: 0;
  transform: translateY(50%);
  transition: all 1s ease-in-out;
}
.page_pc .kv .cp_fx6 {
  position: absolute;
  width: 31.25%;
  left: 17.96875%;
  top: 0;
  margin-top: 14.6875%;
  opacity: 0;
  transform: translateY(50%);
  transition: all 1s ease-in-out;
}
.page_pc .kv .cp_fx3 {
  position: absolute;
  width: 31.25%;
  left: 35.78125%;
  top: 0;
  margin-top: 14.6875%;
  opacity: 0;
  transform: translateY(50%);
  transition: all 1s ease-in-out;
}
.page_pc .kv .cp_7sm3 {
  position: absolute;
  width: 31.25%;
  left: 55.3125%;
  top: 0;
  margin-top: 14.6875%;
  opacity: 0;
  transform: translateY(50%);
  transition: all 1s ease-in-out;
}
.page_pc .kv.active h1 {
  opacity: 1;
  transform: translateY(0);
}
.page_pc .kv.active .cp_fx6 {
  opacity: 1;
  transform: translateY(0);
}
.page_pc .kv.active .cp_fx3 {
  opacity: 1;
  transform: translateY(0);
}
.page_pc .kv.active .cp_7sm3 {
  opacity: 1;
  transform: translateY(0);
}
.page_pc .newTech {
  position: relative;
}
.page_pc .newTech .cp_fx3 {
  position: absolute;
  width: 24.1667%;
  left: 17.96875%;
  top: 0;
  margin-top: 14.6875%;
  opacity: 0;
  transform: translateX(-20%) scale(1.2);
  transition: all 1s ease-in-out;
}
.page_pc .newTech .cp_7s {
  position: absolute;
  width: 28.125%;
  left: 54.375%;
  top: 0;
  margin-top: 12.1875%;
  opacity: 0;
  transform: translateX(20%) scale(1.2);
  transition: all 1s ease-in-out;
}
.page_pc .newTech .eka {
  position: absolute;
  width: 62.5%;
  left: 18.75%;
  top: 0;
  margin-top: 17.08%;
  opacity: 0;
  transition: all 1s ease-in-out;
}
.page_pc .newTech .tbox {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  opacity: 0;
  transform: translateY(50%);
  transition: all 1s ease-in-out;
}
.page_pc .newTech .tbox h2 {
  margin-top: 1.4em;
  text-align: center;
}
.page_pc .newTech .tbox p {
  text-align: center;
}
.page_pc .newTech.active .cp_fx3 {
  opacity: 1;
  transform: translateX(0) scale(1);
  transition-delay: 0.5s;
}
.page_pc .newTech.active .cp_7s {
  opacity: 1;
  transform: translateX(0) scale(1);
  transition-delay: 0.5s;
}
.page_pc .newTech.active .eka {
  opacity: 1;
}
.page_pc .newTech.active .tbox {
  opacity: 1;
  transform: translateY(0);
}
.page_pc .eco {
  position: relative;
}
.page_pc .eco .tbox {
  position: absolute;
  left: 60.9375%;
  top: 16%;
  opacity: 0;
  transform: translateY(50%);
  transition: all 1s ease-in-out;
}
.page_pc .eco .eka {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  opacity: 0;
  transform: translateY(50%);
  transition: all 1s ease-in-out;
}
.page_pc .eco.active .tbox {
  opacity: 1;
  transform: translateY(0);
}
.page_pc .eco.active .eka {
  opacity: 1;
  transform: translateY(0);
}
.page_pc .core {
  position: relative;
}
.page_pc .core h2 {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  text-align: center;
  opacity: 0;
  transform: translateY(150%);
  transition: all 1s ease-in-out;
}
.page_pc .core .coreUl {
  position: absolute;
  width: 960px;
  left: 16.25%;
  top: 0;
  margin-top: 10%;
  transform-origin: top left;
}
.page_pc .core .coreUl li {
  width: 33.33%;
  float: left;
  position: relative;
  margin-top: 5%;
  padding-right: 4%;
  box-sizing: border-box;
  opacity: 0;
  transform: translateY(50%);
}
.page_pc .core .coreUl li:nth-child(3n+1) {
  clear: both;
}
.page_pc .core .coreUl li .xian {
  position: absolute;
  left: 0;
  top: 0;
  width: 43.75%;
  padding-top: 39.0625%;
  overflow: hidden;
  -webkit-mask-image: url(../images/kuang.png);
  mask-image: url(../images/kuang.png);
}
.page_pc .core .coreUl li .xian::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 150%;
  padding-top: 150%;
  margin: -75% 0 0 -75%;
  background: linear-gradient(to top left, #4b5462 65%, #0a83d6 75%);
  animation: cpbox 3s linear infinite;
}
.page_pc .core .coreUl li h4 {
  margin: 0.4em 0 0 0.5em;
  color: #fff;
}
.page_pc .core .coreUl li p {
  font-size: 20px;
  margin-top: 1.5em;
  color: #ccc;
  letter-spacing: 0;
}
.page_pc .core .coreUl.active li {
  opacity: 1;
  transform: translateY(0);
  transition: all 1s ease-in-out;
}
.page_pc .core .bz {
  position: absolute;
  left: 32.1875%;
  bottom: 0;
  margin-bottom: 1.5%;
  color: #999;
  font-size: 14px;
}
.page_pc .core.active h2 {
  opacity: 1;
  transform: translateY(100%);
}
.page_pc .cooling {
  position: relative;
}
.page_pc .cooling .tbox {
  position: absolute;
  top: 50%;
  left: 54%;
  opacity: 0;
  transition: all 1s ease-in-out;
}
.page_pc .cooling .tbox p {
  margin: 0.5em 0.9em 0;
}
.page_pc .cooling .arrow01 {
  position: absolute;
  width: 4.375%;
  left: 30.9375%;
  top: 0;
  margin-top: 24.53125%;
  animation: arr01 1s linear infinite;
}
.page_pc .cooling .arrow02 {
  position: absolute;
  width: 4.375%;
  left: 43.75%;
  top: 0;
  margin-top: 10.78125%;
  opacity: 0;
  animation: arr02 1s linear infinite;
}
.page_pc .cooling .bz01 {
  font-size: 18px;
  color: #999;
  position: absolute;
  left: 39.5%;
  top: 68%;
  opacity: 0;
  transform: translateY(50%);
  transition: all 1s ease-in-out;
}
@media screen and (max-width: 1800px) {
  .page_pc .cooling .bz01 {
    font-size: 1vw;
  }
}
@media screen and (max-width: 1200px) {
  .page_pc .cooling .bz01 {
    font-size: 12px;
  }
}
.page_pc .cooling.active .tbox {
  opacity: 1;
  transform: translateY(-50%);
}
.page_pc .cooling.active .bz01 {
  opacity: 1;
  transform: translateY(0);
}
@keyframes arr01 {
  to {
    transform: translateY(-30%);
    opacity: 0;
  }
}
@keyframes arr02 {
  to {
    transform: translate(30%, -15%);
    opacity: 1;
  }
}
.page_pc .interface {
  position: relative;
}
.page_pc .interface .tbox {
  position: absolute;
  top: 50%;
  left: 17.5%;
  width: 22%;
  opacity: 0;
  transition: all 1s ease-in-out;
}
.page_pc .interface .tbox .tips {
  font-size: 20px;
  width: 18.8em;
  margin: 1.5em 1em 0;
}
@media screen and (max-width: 1920px) {
  .page_pc .interface .tbox .tips {
    font-size: 1.04vw;
  }
}
@media screen and (max-width: 1200px) {
  .page_pc .interface .tbox .tips {
    font-size: 12.5px;
  }
}
.page_pc .interface .tbox p {
  font-size: 15px;
  margin-top: 3.2em;
  text-align: center;
  color: #ccc;
}
@media screen and (max-width: 1500px) {
  .page_pc .interface .tbox p {
    font-size: 1vw;
  }
}
@media screen and (max-width: 1200px) {
  .page_pc .interface .tbox p {
    font-size: 12px;
  }
}
.page_pc .interface.active .tbox {
  opacity: 1;
  transform: translateY(-50%);
}
.page_pc .parts {
  position: relative;
  background: linear-gradient(to bottom, #000, #000 70%, #202020);
  padding: 6.5625% 0 5%;
}
.page_pc .parts h3 {
  display: inline-block;
  position: relative;
  left: 50%;
  opacity: 0;
  transform: translate(-50%, 50%);
  transition: all 1s ease-in-out;
}
.page_pc .parts .tab01 {
  opacity: 0;
  transform: translateY(50%);
  transition: all 1s ease-in-out;
}
.page_pc .parts.active h3 {
  opacity: 1;
  transform: translate(-50%, 0);
}
.page_pc .parts.active .tab01 {
  opacity: 1;
  transform: translateY(0);
}
.page_pc .tabBox {
  opacity: 0;
  transform: translateY(20%);
  transition: all 1s ease-in-out;
}
.page_pc .tabBox.active {
  opacity: 1;
  transform: translate(0, 0);
}
.page_pc .tab01 {
  position: relative;
  width: 1300px;
  margin: 3.75% auto 0;
}
.page_pc .tab01 .tabUlBox {
  overflow: hidden;
}
.page_pc .tab01 .tabUlBox .slideBox {
  overflow: hidden;
  width: 999999px;
}
.page_pc .tab01 .tabUlBox .slideBox li {
  float: left;
  width: 260px;
  position: relative;
}
.page_pc .tab01 .tabUlBox .slideBox li .cp {
  display: inline-block;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
}
.page_pc .tab01 .tabUlBox .slideBox li p {
  text-align: center;
  font-size: 18px;
  line-height: 1.5em;
  margin-top: 1em;
}
@media screen and (max-width: 1800px) {
  .page_pc .tab01 .tabUlBox .slideBox li p {
    font-size: 1vw;
  }
}
@media screen and (max-width: 1200px) {
  .page_pc .tab01 .tabUlBox .slideBox li p {
    font-size: 12px;
  }
}
.page_pc .tab01 .tabUlBox .slideBox li a {
  display: inline-block;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  text-decoration: none;
  opacity: 0.5;
  font-size: 16px;
  line-height: 1.5em;
  padding: 0.3em 1em;
  color: #fff;
  border: 2px solid #fff;
  margin-top: 1em;
}
.page_pc .tab01 .tabUlBox .slideBox li a:hover {
  opacity: 1;
}
@media screen and (max-width: 1600px) {
  .page_pc .tab01 .tabUlBox .slideBox li a {
    font-size: 1vw;
  }
}
@media screen and (max-width: 1200px) {
  .page_pc .tab01 .tabUlBox .slideBox li a {
    font-size: 12px;
  }
}
.page_pc .tab01 .btnPrev {
  position: absolute;
  left: -30px;
  width: 21px;
  top: 50%;
  transform: translateY(-50%);
  cursor: pointer;
}
.page_pc .tab01 .btnNext {
  position: absolute;
  right: -30px;
  width: 21px;
  top: 50%;
  transform: translateY(-50%);
  cursor: pointer;
}
@media screen and (max-width: 1500px) {
  .page_pc .tab01 {
    width: 1200px;
  }
  .page_pc .tab01 .tabUlBox .slideBox li {
    width: 240px;
  }
}
.page_pc .tab02 {
  position: relative;
  width: 88.5417%;
  margin: 0 auto;
  opacity: 1;
  transform: translate(0, 0);
}
.page_pc .tab02 .tabUl {
  overflow: hidden;
  position: relative;
  margin-top: 4%;
  padding-bottom: 2%;
}
.page_pc .tab02 .tabUl > li {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  padding-bottom: 8%;
  z-index: 0;
  opacity: 0;
  transition: all 0.5s linear;
  outline: none;
}
.page_pc .tab02 .tabUl > li .samUl {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
}
.page_pc .tab02 .tabUl > li .samUl > li {
  position: absolute;
  width: 272px;
  transform: scale(0);
  opacity: 0;
  transition: all 0.5s linear;
}
.page_pc .tab02 .tabUl > li .samUl::-webkit-scrollbar {
  width: 1px;
}
.page_pc .tab02 .tabUl > li .cp {
  position: relative;
  width: 422px;
  margin: 0 auto;
  transform: scale(0);
  opacity: 0;
  transition: all 0.5s linear;
}
.page_pc .tab02 .tabUl > li .cp p {
  position: absolute;
  top: 77%;
  left: 20%;
  width: 63%;
  font-size: 18px;
  line-height: 1.6667em;
  color: #ccc;
  margin-top: 0;
}
.page_pc .tab02 .tabUl > li .cp p.a7sm3 {
  left: 15%;
}
.page_pc .tab02 .tabUl > li .cp .btnXq {
  position: absolute;
  left: 0;
  top: 24%;
  color: #ebab64;
  font-size: 16px;
  padding: 0.4em 0.8em;
  transform: translateY(-50%);
  border: 1px solid #ebab64;
}
.page_pc .tab02 .tabUl > li .cp .btnXq:hover {
  background: #333;
}
.page_pc .tab02 .tabUl > li .cp .btnStory {
  position: absolute;
  right: 0;
  top: 84%;
  width: 6em;
  padding: 1.2em 0;
  transform: translate(50%, -50%);
  color: #ebab64;
  font-size: 16px;
  line-height: 1.2em;
  text-align: center;
  border-radius: 50%;
  border: 2px solid #ebab64;
}
.page_pc .tab02 .tabUl > li .cp .btnStory:hover {
  background: #333;
}
@media screen and (max-width: 1800px) {
  .page_pc .tab02 .tabUl > li .cp p {
    font-size: 1vw;
  }
}
@media screen and (max-width: 1600px) {
  .page_pc .tab02 .tabUl > li .cp .btnXq {
    font-size: 1vw;
  }
  .page_pc .tab02 .tabUl > li .cp .btnStory {
    font-size: 1vw;
  }
}
@media screen and (max-width: 1200px) {
  .page_pc .tab02 .tabUl > li .cp p {
    font-size: 12px;
  }
  .page_pc .tab02 .tabUl > li .cp .btnXq {
    font-size: 12px;
  }
  .page_pc .tab02 .tabUl > li .cp .btnStory {
    font-size: 12px;
  }
}
.page_pc .tab02 .tabUl > li.active {
  position: relative;
  z-index: 1;
  opacity: 1;
}
.page_pc .tab02 .tabUl > li.active .samUl > li {
  transform: scale(1);
  opacity: 1;
}
.page_pc .tab02 .tabUl > li.active .cp {
  transform: scale(1);
  opacity: 1;
}
.page_pc .tab02 .tabUl > li:nth-child(2) li:nth-child(2n+1) {
  padding-top: 5%;
}
.page_pc .tab02 .tabUl > li:nth-child(3) .cp .btnXq {
  color: #3f80d0;
  border-color: #3f80d0;
}
.page_pc .tab02 .tabUl > li:nth-child(3) .cp .btnStory {
  color: #3f80d0;
  border-color: #3f80d0;
}
.page_pc .tab02 .btnBox {
  position: relative;
  background: linear-gradient(to top, #444, #444 1px, transparent 1px);
}
.page_pc .tab02 .btnBox .btnUl {
  width: 960px;
  overflow: hidden;
  margin: 0 auto;
}
.page_pc .tab02 .btnBox .btnUl li {
  width: 126px;
  float: left;
  margin: 0 97px;
  padding: 10px 0 20px;
  border-bottom: 1px solid transparent;
  cursor: pointer;
}
.page_pc .tab02 .btnBox .btnUl li.active {
  border-color: #fff;
}
.page_pc .story {
  position: relative;
  background: #000;
}
.page_pc .story h2 {
  position: relative;
  padding: 1em 0;
  text-align: center;
  opacity: 0;
  transform: translateY(50%);
  transition: all 1s ease-in-out;
}
.page_pc .story.active h2 {
  opacity: 1;
  transform: translateY(0);
}
.page_pc .creat {
  position: relative;
}
.page_pc .creat .tbox {
  position: absolute;
  left: 16.25%;
  bottom: 38%;
  width: 22%;
  opacity: 0;
  transform: translateY(50%);
  transition: all 1s ease-in-out;
}
.page_pc .creat .tbox h2 {
  padding-bottom: 1em;
  position: relative;
}
.page_pc .creat .tbox h2 span {
  font-weight: lighter;
  display: block;
}
.page_pc .creat .tbox h2::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 1em;
  height: 2px;
  background: #0e80ce;
}
.page_pc .creat .tbox p {
  width: 100%;
  margin-top: 1.8em;
  position: absolute;
  left: 0;
  top: 100%;
}
.page_pc .creat.active .tbox {
  opacity: 1;
  transform: translateY(1px);
}
.page_pc .lecturer {
  background: linear-gradient(to bottom, #000, #1b1c1c);
  position: relative;
}
.page_pc .lecturer::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  width: 0;
  height: 0;
  border: 20px solid transparent;
  border-top-color: #2d2f31;
  transform: translateX(-50%);
}
.page_pc .lecturer h4 {
  position: relative;
  text-align: center;
  padding: 1.5em 0 1em;
  opacity: 0;
  transform: translateY(50%);
  transition: all 1s ease-in-out;
}
.page_pc .lecturer h4::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 1em;
  height: 1px;
  background: #0e80ce;
  transform: translateX(-50%);
}
.page_pc .lecturer .tab03 {
  position: relative;
  width: 1300px;
  margin: 2% auto 0;
  overflow: hidden;
  opacity: 0;
  transform: translateY(50%);
  transition: all 1s ease-in-out;
}
.page_pc .lecturer .tab03 .slideBox {
  overflow: hidden;
  width: 999999px;
}
.page_pc .lecturer .tab03 .slideBox li {
  float: left;
  width: 325px;
  position: relative;
}
.page_pc .lecturer .tab03 .slideBox li .tx {
  width: 55%;
  margin: 0 auto;
}
.page_pc .lecturer .tab03 .slideBox li h5 {
  font-size: 26px;
  line-height: 1.3em;
  margin-top: 1em;
  text-align: center;
  color: #fff;
}
.page_pc .lecturer .tab03 .slideBox li p {
  text-align: center;
}
.page_pc .lecturer .tab03 .slideBox li p.text {
  color: #ccc;
  margin-top: 1em;
  font-size: 0.89em;
  line-height: 1.75em;
}
.page_pc .lecturer .tab03 .slideBox li a {
  display: inline-block;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  text-decoration: none;
  opacity: 0.5;
  font-size: 16px;
  line-height: 1.5em;
  padding: 0.3em 1em;
  color: #fff;
  border: 2px solid #fff;
  margin-top: 1em;
}
.page_pc .lecturer .tab03 .slideBox li a:hover {
  border-color: #f60;
}
@media screen and (max-width: 1600px) {
  .page_pc .lecturer .tab03 .slideBox li a {
    font-size: 1vw;
  }
}
@media screen and (max-width: 1200px) {
  .page_pc .lecturer .tab03 .slideBox li a {
    font-size: 12px;
  }
}
.page_pc .lecturer .tab03 .btnUl {
  width: 90%;
  margin: 4% auto 0;
  color: #777;
  display: flex;
  color: transparent;
}
.page_pc .lecturer .tab03 .btnUl > li {
  flex: 1;
  height: 30px;
  cursor: pointer;
  position: relative;
}
.page_pc .lecturer .tab03 .btnUl > li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 100%;
  height: 1px;
  background: #777;
}
.page_pc .lecturer .tab03 .btnUl > li.active::before {
  background: #fff;
}
.page_pc .lecturer .tab03 > p {
  text-align: center;
  height: 30px;
  color: #777;
}
.page_pc .lecturer .tab03 .btnPrev {
  position: absolute;
  left: 0;
  bottom: 30px;
  width: 3%;
  height: 30px;
  background: #fff;
  cursor: pointer;
  line-height: 0;
  text-indent: 999em;
  background: linear-gradient(to bottom, #fff 1px, transparent 1px) center no-repeat;
  background-size: 100% 2px;
}
.page_pc .lecturer .tab03 .btnPrev::before {
  content: '';
  position: absolute;
  left: 0;
  bottom: 50%;
  width: 10px;
  height: 1px;
  background: #fff;
  transform-origin: left;
  transform: rotate(45deg);
}
.page_pc .lecturer .tab03 .btnPrev::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 50%;
  width: 10px;
  height: 1px;
  background: #fff;
  transform-origin: left;
  transform: rotate(-45deg);
}
.page_pc .lecturer .tab03 .btnNext {
  position: absolute;
  right: 0;
  width: 3%;
  height: 30px;
  background: #fff;
  bottom: 30px;
  cursor: pointer;
  line-height: 0;
  text-indent: 999em;
  background: linear-gradient(to bottom, #fff 1px, transparent 1px) center no-repeat;
  background-size: 100% 2px;
}
.page_pc .lecturer .tab03 .btnNext::before {
  content: '';
  position: absolute;
  right: 0;
  bottom: 50%;
  width: 10px;
  height: 1px;
  background: #fff;
  transform-origin: right;
  transform: rotate(45deg);
}
.page_pc .lecturer .tab03 .btnNext::after {
  content: '';
  position: absolute;
  right: 0;
  bottom: 50%;
  width: 10px;
  height: 1px;
  background: #fff;
  transform-origin: right;
  transform: rotate(-45deg);
}
@media screen and (max-width: 1500px) {
  .page_pc .lecturer .tab03 {
    width: 1200px;
  }
  .page_pc .lecturer .tab03 .slideBox li {
    width: 300px;
  }
}
.page_pc .lecturer .tips {
  padding: 2% 0 5%;
}
.page_pc .lecturer .tips p {
  color: #c95b2f;
  text-align: center;
}
.page_pc .lecturer .tips p:first-child {
  font-size: 20px;
  color: #999;
  letter-spacing: 0.5em;
}
.page_pc .lecturer.active h4 {
  opacity: 1;
  transform: translateY(0);
}
.page_pc .lecturer.active .tab03 {
  opacity: 1;
  transform: translateY(0);
}
.page_pc .activityBox {
  position: relative;
}
.page_pc .activityBox .activity {
  position: absolute;
  width: 67.71%;
  left: 16.15%;
  top: 0;
  transform: translateY(50%);
  opacity: 0;
  transition: all 1s ease-in-out;
}
.page_pc .activityBox .activity .btnEnroll {
  position: absolute;
  bottom: 1.94%;
  left: 14.77%;
  background: #4290c6;
  color: #fff;
  font-size: 30px;
  line-height: 1em;
  letter-spacing: 0.2em;
  padding: 0.5em 1em 0.5em 1.5em;
}
.page_pc .activityBox .activity .btnEnroll:hover {
  background: #1579bf;
}
.page_pc .activityBox .activity p.tips_signUp {
  position: absolute;
  left: 0;
  bottom: -5%;
  width: 50%;
  font-size: 12px;
  color: #999;
  text-align: center;
}
.page_pc .activityBox.active .activity {
  transform: translateY(0);
  opacity: 1;
}
@media screen and (max-width: 1728px) {
  .page_pc .activityBox {
    width: 1728px;
    left: 50%;
    margin-left: -864px;
  }
  .page_pc .activityBox .activity {
    width: 1170px;
    left: 50%;
    margin-left: -585px;
  }
  .page_pc .activityBox .activity .btnEnroll {
    font-size: 27px;
  }
}
@media screen and (max-width: 1500px) {
  .page_pc .activityBox {
    width: 1596px;
    margin-left: -798px;
  }
  .page_pc .activityBox .activity {
    width: 1080px;
    margin-left: -540px;
  }
  .page_pc .activityBox .activity .btnEnroll {
    font-size: 25px;
  }
}
@media screen and (max-width: 1920px) {
  .page_pc h2 {
    font-size: 2.8125vw;
  }
  .page_pc h3 {
    font-size: 2.6042vw;
  }
  .page_pc p {
    font-size: 1.25vw;
  }
  .page_pc .vbox01 .v01 {
    font-size: 1.04vw;
  }
  .page_pc .tab02 .tabUl > li .samUl > li {
    width: 14.1667vw;
  }
  .page_pc .tab02 .tabUl > li .cp {
    width: 21.9792vw;
  }
  .page_pc .lecturer .tips p:first-child {
    font-size: 1.1111vw;
  }
  .page_pc .activity .btnEnroll {
    font-size: 1.5625vw;
  }
}
@media screen and (max-width: 1400px) {
  .page_pc .core .bz {
    font-size: 1vw;
  }
}
@media screen and (max-width: 1200px) {
  .page_pc h2 {
    font-size: 33.75px;
  }
  .page_pc h3 {
    font-size: 31.25px;
  }
  .page_pc p {
    font-size: 15px;
  }
  .page_pc .vbox01 .v01 {
    font-size: 12.5px;
  }
  .page_pc .core .bz {
    font-size: 12px;
  }
  .page_pc .tab02 .tabUl > li .samUl > li {
    width: 170px;
  }
  .page_pc .tab02 .tabUl > li .cp {
    width: 264px;
  }
  .page_pc .lecturer .tips p:first-child {
    font-size: 13px;
  }
  .page_pc .activity .btnEnroll {
    font-size: 18.75px;
  }
}