body {
    padding-top: 0px;
    position: relative;
}

header {
  position: fixed;
  width: 100%;
  z-index: 999;
}

#headerNav .main-menu .menu-item a {
    font-size: 16px;
    line-height: 21px;
}

#headerNav .main-menu .menu-item:hover a {
    color: #ffffff !important;
    font-weight: bold;
    position: relative;
  }

  #headerNav.header-nav-container .main-menu .menu-item.has-submenu:hover .menu-item-sec a {
    color: #7F7F84 !important;
}

  #headerNav .main-menu .menu-item.has-submenu .menu-item-sec .sec-menu-title:hover a {
    color: var(--main-color) !important;
  }

  #headerNav .main-menu .menu-item:hover a::after {
    background-color: #ffffff;
  }

  #headerNav.header-nav-container {
    border: none;
  }

  #headerNav.header-nav-container.stick-to-top {
    border-bottom: 1px solid var(--border-color);
  }

  #headerNav.header-nav-container .main-menu .menu_active > a {
    color: #ffffff !important;
  }

  #headerNav.header-nav-container.stick-to-top .main-menu .menu_active > a {
    color: var(--main-color) !important;
    font-weight: bold;
  }

  #headerNav.header-nav-container.stick-to-top .main-menu .menu-item:hover a {
    color: var(--main-color) !important;
    position: relative;
  }

  #headerNav.header-nav-container.stick-to-top .main-menu .menu-item:hover a::after {
    background-color: var(--main-color) !important;
  }

  #headerNav.header-nav-container.stick-to-top .main-menu .menu_active > a::after {
    background-color: var(--main-color) !important;
  }

  #headerContainer .swiper-pagination-bullets {
    color: #CCCCCC;
    bottom: 150px;
    font-weight: 500;
    font-size: 16px;
    line-height: 22px;
    top: auto;
    left: auto;
    width: fit-content;
    bottom: 107px !important;
    right: 341px !important;
  }

  #headerContainer .header-bullet {
    width: 12px;
    height: 12px;
    margin-left: 14px;
    background-color: #ffffff;
    border-radius: 50%;
    display: inline-block;
  }

  #headerContainer .swiper-pagination-bullet-active {
    background-color: rgba(0, 0, 0, 0.3);
  } 

  #headerNav .logo-img.white {
    height: 70px;
    margin-top: 0;
    margin-bottom: 0;
}

  #headerNav.header-nav-container .logo-img.white {
    display: block;
  }
  
  #headerNav.header-nav-container .logo-img.black {
    display: none;
  }
  
  #headerNav.header-nav-container.stick-to-top .logo-img.white {
    display: none;
  }
  
  #headerNav.header-nav-container.stick-to-top .logo-img.black {
    display: block;
  }

  .header-swiper {
    width: 100%;
    position: relative;
    overflow: hidden;
  }

  #courseSection {
    padding-top: 60px;
  }

  .title {
    width: 1200px;
    display: flex;
    align-items: center;
    padding-bottom: 40px;
    /* margin-left: 16.67%; */

    font-family: var(--font-family);
    font-weight: bold;
    font-size: 26px;
    color: var(--font-color);
    line-height: 30px;
  }

  /* .title .en {
    padding-left: 21px;
  } */

  #courseSection {
    display: flex;
    flex-flow: column;
    justify-content: center;
    align-items: center;
  }
  
  #courseContainer {
    width: 1200px;
  }

  #courseContainer .container {
    display: flex;
    /* align-items: center; */
    width: 100%;
    /* padding-left: 10%; */
    /* padding-bottom: 21px; */
    /* margin-left: 6.67%; */
  }

  #courseContainer .video-div {
    /* width: 32%; */
    height: fit-content;
    position: relative;
    border-radius: 10px;
    overflow: hidden; 
    cursor: pointer;
  }

  #courseContainer .swiper-slide.swiper-slide {
    /* width: 268px !important; */
  }

  #courseContainer .title {
    margin-left: 0px;
    padding-bottom: 74px;
  }

  .video-bg-div {
    width: 327px;
    height: 406px;
    background-image: url("/assets/images/v-bg-1.png");
    background-position: center center;
    background-repeat: no-repeat;
  background-size: cover;
  transition: transform 1s ease-out;
  /* 修改为 transform: scale(1); 并增加 transition */
  transform-origin: center;
  /* 设置变换原点为中心 */
    border-radius: 10px;
  }

  #courseContainer .video-div:hover .video-bg-div {
    transform: scale(1.1);
  }

  #courseContainer .video-div .play-btn {
    width: 66px;
    height: 66px;
    position: absolute;
    left: 50%;
    top:50%;
    margin-top: -33px;
    margin-left: -33px;
    transition: transform 0.5s ease-in-out;
  }

  #courseContainer .video-div:hover .play-btn {
    transform: scale(0.9);
  }

  #courseContainer .video-div .video-bg-img {
    width: 100%;
    border-radius: 10px;
  }

  .course-right-wrapper {
    width: 72%;
    margin-left: 32px;
    flex: 1;
  }

  .course-swiper {
    height: 537px;
    padding-bottom: 108px;
  }

  .course-swiper .slide-content {
    height: 100%;
    border-radius: 12px;
    /* box-shadow: 0px 7px 29px 0px rgba(100,100,111,0.2); */
    overflow: hidden;
    position: relative;
  }

  .course-swiper .slide-content a {
    display: flex;
    flex-flow: column;
    justify-content: center;
    align-items: center;
  }

  .course-swiper .empty-bg,
  #whyContainer .empty-bg  {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: -1;
  }

  #whyContainer .empty-bg {
    height: 92%;
  }

  .bg-2-wrapper {
    width: 100%;
    height: 58%;
    overflow: hidden;
    border-radius: 12px 12px 0 0;

    background-image: url(/assets/images/class-5.png);
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
  }

  .course-swiper .slide-content .bg-2 {
    width: 91%;
    transition: transform 0.5s ease;
    transform-origin: center;
    border-radius: 12px 12px 0 0;
  }

  .course-swiper .slide-content:hover .bg-2 {
    transform: scale(1.1) rotate(2deg);
  }

  .course-swiper .slide-content .course-details {
    width: 91%;
    padding: 33px 26px;
  }

  .course-swiper .slide-content .course-details .student-num {
    padding-bottom: 4px;
  }

  .course-swiper .slide-content .course-details .course-title {
    font-family: var(--font-family);
    font-size: 16px;
    color: var(--font-color);
    line-height: 19px;
    padding-bottom: 16px;
    border-bottom: 1px solid #F4F4F4;
  }

  .course-swiper .slide-content:hover .course-details .course-title {
    color: var(--main-color);
  }

  .course-swiper .slide-content .course-details .line-2 {
    color: #808080;
    padding-top: 20px;
    font-family: var(--font-family);
    font-weight: 400;
    font-size: 14px;
    line-height: 16px;
    align-items: center;
  }

  .course-swiper .slide-content:hover .course-details .line-2 {
    color: var(--font-color);
  }

  .course-swiper .slide-content .course-details .line-2 .more-btn {
    width: 14px;
    height: 14px;
    margin-left: 10px;
  }

  .course-swiper .slide-content .course-details .line-2 .viewer-num {
    padding-bottom: 4px;
  }

  .course-swiper .swiper-button-prev,
  .course-swiper .swiper-button-next {
    position: absolute;
    top: 488px;
    transform: translateY(-50%);
    z-index: 10;
    cursor: pointer;
    color: #ffffff;
    width: 51px;
    height: 51px;
    display: block;
}

.course-swiper .swiper-button-prev {
  left: 19%;
}

.course-swiper .swiper-button-next {
    left: 73%;
}

#institutionalSection {
  display: flex;
  flex-flow: column;
  justify-content: center;
  padding-bottom: 60px;
}

#institutionalContainer .title {
  padding-bottom: 0px;
}

#institutionalContainer .container {
  width: 100%;
  display: flex;
  justify-content: center;
}

#institutionalContainer .details-container{
  width: 1200px;
}

#institutionalContainer .slide-content{
  height: 100%;
  align-items: center;
}

#institutionalContainer .teacher-title-img {
  width: 248px;
  height: 248px;
  margin-top: 60px;
  margin-right: 16px;
}

#institutionalContainer .details {
  width: 43%;
  color: #808080;
  font-size: 16px;
}

#institutionalContainer .details .line-1 {
  display: flex;
  padding-bottom: 44px;
}

#institutionalContainer .details .line-1 .t-name {
  font-family: var(--font-family);
  font-size: 24px;
  color: #FF3232;
  line-height: 28px;
}

#institutionalContainer .details .line-1 .t-title {
  font-family: var(--font-family);
  font-size: 24px;
  color: var(--font-color);
  line-height: 28px;
  padding-left: 12px;
}

#institutionalContainer .details .line-2 {
  padding-bottom: 11px;
  border-bottom: 1px solid #808080;
}

#institutionalContainer .details .line-3 {
  padding-top: 40px;
}

#institutionalContainer .details .line-2 .detail {
  padding-bottom: 22px;
}

#institutionalContainer .details .line-2 .detail:nth-last-child(1) {
  padding-bottom: 0px;
}

#institutionalContainer .teacher-pic {
  width: 31%;
  padding-right: 30px;
}

#institutionalContainer .swiper-pagination-bullets {
  border-radius: 50%;
    width: 24px;
    height: 50%;
    display: flex;
    flex-flow: column;
    transform: translateY(45%);
    justify-content: flex-end;
    position: absolute;
    right: 24px;
    top: 100px;
}

#institutionalContainer .institutional-bullet {
    width: 19px;
    height: 19px;
    border: 2px solid #808080;
    border-radius: 50%;
    display: block;
    margin-bottom: 5px;
}

#institutionalContainer .institutional-bullet-active {
  border-color: #FF3232 ;
}

#whySection {
  padding-bottom: 60px;
}

.imm-why-seciton {
  padding-bottom: 21px !important;
}

#whySection .container {
  width: 100%;
  display: flex;
  justify-content: center;
}

#whySection .details-container,
#standardContainer,
#noteContainer {
  width: 1200px;
}

#whySection .details-container.migrate {
  width: 76%;
  position: relative;
}

#whySection .migrate .why-detail {
  font-family: var(--font-family);
  font-size: 14px;
  color: #808080;
  line-height: 20px;
  min-height: 76px;
}

#whySection .why-title {
  font-family: var(--font-family);
  font-weight: bold;
  font-size: 40px;
  color: #555555;
  line-height: 47px;
  padding-bottom: 40px;
  text-align: center;
}

#whySection .why-list {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

#whySection .why-item {
  width: 32%;
  box-shadow: 0px 7px 29px 0px rgba(100,100,111,0.2);
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
}

#whySection .why-item.migrate {
  width: 23%;
  border-radius: 16px;
  background-color: #FCFCFD;
}

#whySection .why-item .why-bg-wrapper,
#whySection .migrate .why-bg-wrapper  {
  width: 100%;
  overflow: hidden;
  border-radius: 16px 16px 0px 0px;
}

#whySection .migrate .why-bg-wrapper {
  width: 90%;
  text-align: center;
}

#whySection .migrate .why-bg-wrapper .why-bg {
  width: auto;
  height: 178px;
}

#whySection .why-item .why-bg,
#whySection .migrate .why-bg {
  width: 100%;
  transition: transform 0.5s ease;
  transform-origin: center;
}

#whySection .why-item:hover .why-bg,
#whySection .migrate .slide-content:hover .why-bg {
  transform: scale(1.1);
}

#whySection .why-details {
  padding: 16px 35px;
  font-family: var(--font-family);
  font-size: 16px;
  color: #808080;
  line-height: 28px;
  min-height: 260px;
}

#whySection .migrate .why-details {
  padding: 24px 33px;
}

#whySection .migrate .why-detail {
  padding-bottom: 16px;
}

#whySection .migrate .why-details .score-line {
  padding-top: 16px;
  border-top: 1px solid #E6E8EC;
}

#whySection .migrate .why-details .score-line .score-tip {
  font-family: var(--font-family);
  font-size: 14px;
  color: #777E90;
  line-height: 20px;
}

#whySection .migrate .why-details .score-line .yellow-star-icon {
  width: 12px;
  height: 12px;
  margin-right: 4px;
}

#whySection .migrate .why-details .score-line .score-num {
  font-family: var(--font-family);
  font-weight: bold;
  font-size: 14px;
  color: #23262F;
  line-height: 20px;
}

#whySection .why-details .why-detail-title {
  color: var(--font-color);
  line-height: 19px;
  padding-bottom: 12px;
}

#whySection .slide-content.migrate {
  border-radius: 16px;
  display: flex;
  flex-flow: column;
  justify-content: center;
  align-items: center;
  /* box-shadow: 0px 7px 29px 0px rgba(100,100,111,0.2); */
}

#whySection .migrate .swiper-button-next, 
#whySection .migrate .swiper-button-prev {
  width: 61px;
  height: 61px;
}

/* #advantageSection,
#calculateSection,
#noteSection {
  padding-bottom: 90px;
} */

#advantageSection {
  padding-bottom: 40px;
}

#calculateSection {
  padding-bottom: 40px;
}

#advantageSection .check-icon {
  width: 15px;
}

table {
  width: 100%;
  border-collapse: collapse;
  box-shadow: 0px 7px 29px 0px rgba(100,100,111,0.2);
}

th,
td {
  padding: 10px;
  text-align: left;
  
}

th {
  background-color: var(--main-color);
  color: white;
  text-align: center;
}

td {
  font-family: var(--font-family);
  font-size: 16px;
  color: var(--font-color);
  line-height: 19px;
  border: none;
  border-bottom: 1px solid #E9E9E9;
  border-left: 1px solid #E9E9E9;
}

tr:hover {
  background-color: #fafafa;
}

#calculateContainer,
#standardContainer,
#noteContainer {
  width: 1200px;
  display: flex;
  justify-content: start;
  align-items: start;
}

#standardContainer {
  flex-flow: column;
}

#calculateContainer .container,
#standardContainer .container,
#noteContainer .container {
  flex: 1;
}

#calculateContainer .title,
#standardContainer .title,
#noteContainer .title {
  width: 328px;
  margin-left: 0px;
}

#standardContainer .container {
  width: 100%;
}

#noteSection {
  padding-top: 60px;
}

#calculateContainer .details-container .cal-detail {
  font-size: 16px;
  color: var(--font-color);
  line-height: 19px;
  padding-bottom: 20px;
}

#calculateContainer .container {
  margin: 0;
}

.score-container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.score-title {
  margin-bottom: 20px;
}

#calculateSection,
#standardSection,
#noteSection {
  display: flex;
  justify-content: center;
}

#standardSection .total-btn,
#noteSection .note-btn {
  font-size: 16px;
  color: var(--font-color);
  line-height: 19px;
  background-color: #F4F4F4;
  border-radius: 10px;
  text-align: center;
  padding: 28px 30px;
  margin-right: 16px;
  margin-bottom: 24px;
}

#noteSection .note-btn {
  padding: 28px 111px;
}

#standardSection .total-btn.active,
#noteSection .note-btn.active,
#standardSection .total-btn:hover,
#noteSection .note-btn:hover {
  color: #ffffff;
  background-color: var(--main-color);
}

#standardSection .standard-content,
#noteSection .standard-content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

#standardSection .standard-item,
#noteSection .note-item {
  width: 48%;
  box-shadow: 0px 8px 24px 0px rgba(149,157,165,0.2);
  border-radius: 22px;
  padding: 39px 22px;
  margin-bottom: 30px;
}

#noteSection .note-item {
  width: 100%;
}

#standardSection .standard-item .standard-i-title,
#noteSection .note-item .note-i-title {
  font-size: 18px;
  color: #333333;
  line-height: 21px;
  padding-bottom: 20px;
}

#standardSection .standard-item .standart-i-detail,
#noteSection .note-item .note-i-detail {
  font-size: 14px;
  color: #808080;
  line-height: 16px;
  padding-bottom: 18px;
  line-height: 22px;
}

#noteSection .note-item .note-i-detail {
  font-size: 16px;
}

#standardSection .total-btns,
#noteSection .note-btns {
  padding-bottom: 20px;
}

#classSection .class-item {
  width: 34%;
  display: flex;
  flex-flow: column;
  align-items: center;
  justify-content: center;
  padding-left: 5%;
  padding-right: 5%;
  margin-bottom: 60px;
 }

#classSection .class-item .class-icon {
  width: 90px;
  height: 90px;
  margin-bottom: 24px;
}

#classSection .class-title {
  font-weight: bold;
  font-size: 20px;
  color: var(--font-color);
  line-height: 23px;
  margin-bottom: 24px;
}

#classSection .class-detail {
  font-size: 16px;
  color: var(--font-color);
  line-height: 30px;
  text-align: center;
}

@keyframes rotateIcon {
  from {
    transform: rotateY(0deg);
  }
  to {
    transform: rotateY(360deg);
  }
}

.class-icon {
  transition: transform 0.5s ease-in-out; 
}

.class-item:hover .class-icon {
  animation: rotateIcon 0.5s linear 1; 
  animation-fill-mode: forwards; 
}

.swiper-slide {
  cursor: pointer;
}

.swiper-button-prev .grey,
.swiper-button-next .grey {
  display: block;
}

.swiper-button-prev .red,
.swiper-button-next .red {
  display: none;
}

.swiper-button-prev:hover .grey,
.swiper-button-next:hover .grey {
  display: none;
}

.swiper-button-prev:hover .red,
.swiper-button-next:hover .red {
  display: block;
}

.swiper-button-next:after,
.swiper-button-prev:after {
  display: none;
}

.ml-150 {
  margin-left: 150px;
}


#moreVideoSection {
  display: flex;
  justify-content: center;
  padding-top: 120px;
  padding-bottom: 60px;
}

#moreVideoSection .more-video-container {
  width: 1200px;
  z-index: 2;
}

#moreVideoSection .title {
  display: flex;
  justify-content: center;
  font-weight: bold;
  font-size: 32px;
  color: #555555;
  line-height: 30px;
  padding-bottom: 31px;
}

#moreVideoSection .sec-title {
  font-weight: bold;
  font-size: 26px;
  color: var(--font-color);
  line-height: 30px;
  padding-bottom: 27px;
}

#moreVideoSection .dec-title {
  width: 524px;
  font-size: 16px;
  color: #808080;
  line-height: 32px;
  padding-bottom: 40px;
}

#moreVideoSection .video-item {
  width: 25%;
  padding-left: 12px;
  cursor: pointer;
}

#moreVideoSection .video-item:first-child {
  padding-left: 0px;
}

#moreVideoSection .v-channel img {
  height: 44px;
  margin-bottom: 30px;
  position: relative;
}

#moreVideoSection .v-channel .channel-img.red {
  display: none;
}

#moreVideoSection .v-channel .channel-img.grey {
  display: block;
}

#moreVideoSection .v-channel {
  position: relative;
}

#moreVideoSection .to-video-btn {
  font-size: 16px;
  color: var(--main-color);
  line-height: 19px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 15px 0px;
  width: 100%;
  border: 1px solid var(--main-color);
  border-radius: 4px;
  background-color: #ffffff;
}

#moreVideoSection .video-wrapper {
  width: 100%;
  height: 262px;
  background-image:url("/assets/images/more-video-bg.png");
  background-position:center center;
  background-repeat:no-repeat;
  background-size:cover;
  border-radius: 20px;
  position: relative;
  margin-top: 10px;
}

#moreVideoSection .c-logo {
  color: #ffffff;
  padding: 6px 10px;
  font-size: 14px;
  color: #FFFFFF;
  line-height: 22px;
  border-radius: 20px 0px;
  background-color: var(--main-color);
  position: absolute;
  left: 0;
  top: 0;
}

#moreVideoSection .play-btn {
  width: 90px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

#moreVideoSection .video-item:hover .v-channel .channel-img.red {
  display: block;
}

#moreVideoSection .video-item:hover .v-channel .channel-img.grey {
  display: none;
}

#moreVideoSection .video-item:hover .to-video-btn {
  color: #ffffff;
  background-color: var(--main-color);
}

#moreVideoSection .video-item:hover .v-channel::after {
  content: '';
  position: absolute;
  left: 92px;
  top: 45px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--main-color);
  margin-left: -3px;
}

#moreVideoSection .video-item:hover .redbook.v-channel::after {
  left: 80px;
}

#moreVideoSection .video-item .play-btn.red {
  display: none;
}

#moreVideoSection .video-item .play-btn.grey {
  display: block;
}


#moreVideoSection .video-item:hover .play-btn.red {
  display: block;
}

#moreVideoSection .video-item:hover .play-btn.grey {
  display: none;
}

#moreVideoSection .red-title {
  padding-bottom: 42px;
}

#institutionalSection,
#moreVideoSection {
  background-color: #FFEFEA;
  padding: 60px 0;
  margin-bottom: 60px;
  position: relative;
}

#moreVideoSection {
  margin-bottom: 0;
}

#courseSection {
  background-image:url("/assets/images/bg-30.jpg");
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;
  position: relative;
}

/* #calculateSection {
  background-image:url("/assets/images/bg-1.jpg");
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;
  background-color: #f6f6f6;
  padding-top: 32px;
  padding-bottom: 32px;
  margin-bottom: 62px;
} */

#advantageSection {
  background-image:url("https://img.celpipqihang.com/assets/images/bg-29.jpg");
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;
  padding-top: 60px;
  margin-bottom: 60px;
}

#advantageSection table {
  background-color: #ffffff;
}

#classSection {
  background-image:url("https://img.celpipqihang.com/assets/images/bg-31.jpg");
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;
  padding-top: 60px;
}

#moreVideoSection .bg-div {
  width: 100%;
  height: 100%;
  background-image:url("https://img.celpipqihang.com/assets/images/bg-25.png");
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
  position: absolute;
  left: 0;
  top: 12%;
}

#institutionalContainer .swiper-slide {
  background-color: #ffffff;
  border-radius: 24px;
}

#noteSection {
  background-image:url("https://img.celpipqihang.com/assets/images/bg-2.jpg");
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
  margin-top: 40px;
}

#noteSection .note-item {
  background-color: #171F3296;
  border-radius: 5px 5px 5px 5px;
  margin-bottom: 60px;
}

#noteSection .title,
#noteSection .note-item .note-i-title,
#noteSection .note-item .note-i-detail {
  color: #ffffff;
}

.tp-service-3-shape-2 {
  position: absolute;
  top: 170px;
  left: 200px;
  animation: opacity 2s ease-in-out 0.1s forwards infinite alternate;
}

.tp-service-3-shape-3 {
  position: absolute;
  bottom: 0;
  left: 30px;
}

.tp-service-3-shape-4 {
  position: absolute;
  bottom: 0;
  right: 200px;
  animation: tpswing 3s ease-in-out 0.1s forwards infinite alternate;
  transform-origin: bottom left;
  z-index: 1;
}

.tp-service-3-shape-5 {
  position: absolute;
  top: -93px;
  right: 354px;
  transform-origin: bottom left;
  z-index: 1;
  animation: tpswing 3s ease-in-out 0.1s forwards infinite alternate;
}

@keyframes tpswing {
  0% {
    transform: rotate(3deg);
}
100% {
  transform: rotate(-3deg);
}
}

@keyframes opacity {
  0% {
    opacity: 0.4;
}
50% {
  opacity: 1;
}
100% {
  opacity: 0.4;
}
}

/* 模态框背景 */
.modal {
  display: none;
  /* 默认隐藏 */
  position: fixed;
  z-index: 9999;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.8);
  align-items: center;
  justify-content: center;
}

/* 模态框内容 */
.modal-content {
  margin: 8% auto;
  border: none;
  width: 70vw;
  max-width: 80vw;
  max-height: 80vh;
  box-shadow: none;
  background-color: transparent;
}

.modal-title {
  font-size: 24px;
  font-weight: bold;
  text-align: center;
  width: fit-content;
  background-color: #333333;
  color: #ffffff;
  border-radius: 12px;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 12px;
  position: absolute;
  right: 14px;
  top: 14px;
}

#myVideo {
  width: 100%;
}

/* 关闭按钮 */
.close {
  color: #555555;
  float: right;
  font-size: 28px;
  font-weight: bold;
  position:relative; 
  bottom:5px;
}

.close:hover,
.close:focus {
  color: black;
  text-decoration: none;
  cursor: pointer;
}

#courseSection .details-btn-wrapper {
  position: absolute;
  left: 50%;
  bottom: 60px;
  margin-left: -82px;
}

#courseSection .course-detail-btn {
  cursor: pointer;
  width: 164px;
    height: 48px;
    color: #ffffff;
    font-weight: bold;
    font-size: 18px;
    line-height: 21px;
    padding: 12px 46px;
    background-color: var(--main-color);
    border-radius: 45px;
    margin-left: 18px;
    transition: all .25s cubic-bezier(.645,.045,.355,1);
    position: relative;
    overflow: hidden;
    letter-spacing: 2px;
}

#courseSection .course-detail-btn span {
  color: #ffffff;
  z-index: 2;
  position: absolute;
  top: 28%;
}

#courseSection .course-detail-btn:hover {
  color: #ffffff;
  background-color: var(--main-color);
}

#courseSection .course-detail-btn:hover:before {
  height: 450%;
  -webkit-transition: all 1s ease 0s;
  -khtml-transition: all 1s ease 0s;
  -moz-transition: all 1s ease 0s;
  -ms-transition: all 1s ease 0s;
  -o-transition: all 1s ease 0s;
  transition: all 1s ease 0s;
  border: 0;
}

#courseSection .course-detail-btn:before {
  content: "";
  position: absolute;
  height: 0;
  left: 50%;
  top: 50%;
  width: 150%;
  -webkit-transition: all .35s ease 0s;
  -khtml-transition: all .35s ease 0s;
  -moz-transition: all .35s ease 0s;
  -ms-transition: all .35s ease 0s;
  -o-transition: all .35s ease 0s;
  transition: all .35s ease 0s;
  background: #262631;
  -webkit-transform: translateX(-50%) translateY(-50%) rotate(-25deg);
  -khtml-transform: translateX(-50%) translateY(-50%) rotate(-25deg);
  -moz-transform: translateX(-50%) translateY(-50%) rotate(-25deg);
  -ms-transform: translateX(-50%) translateY(-50%) rotate(-25deg);
  -o-transform: translateX(-50%) translateY(-50%) rotate(-25deg);
  transform: translateX(-50%) translateY(-50%) rotate(-25deg);
  z-index: 1;
}

#whySection .why-details .why-detail {

}

@media screen and (min-width:1200px) {
  .course-right-wrapper {
    margin-left: 10px;
  }
  
   
}

@media screen and (max-width:1200px) {
   

  .modal-title {
    font-size: 14px;
    padding: 6px;
    right: 22px;
    top: 4px;
  }

  iframe {
    max-height: 60vh;
  }

  #headerContainer .swiper-pagination-bullets {
    bottom: 32px !important;
    right: 50px !important;
  }

  #headerContainer .header-bullet {
    width: 8px;
    height: 8px;
  }

  .title {
    width: 100%;
    font-size: 19px;
    margin-left: 0px;
    padding-bottom: 28px;
  }

  #courseSection {
    padding-top: 40px;
  }

  #courseContainer .container {
    flex-wrap: wrap;
    padding: 0px;
    margin-left: 0;
  }

  #courseContainer .video-div,
  .course-right-wrapper {
    width: 100%;
    padding-bottom: 30px;
    margin-left: 0px;
  }

  .course-right-wrapper {
    padding-bottom: 20px;
  }

  #courseSection .course-detail-btn {
    margin-left: 0;
  }

  #courseContainer .video-div {
    padding: 0px 12px 20px 12px;
  }

  #courseContainer .video-bg-div {
    width: 100%;
    height: 100%;
  }

  .course-swiper {
    height: 606px !important;
    padding-bottom: 69px;
  }

  .course-swiper .swiper-button-prev,
  .course-swiper .swiper-button-next {
    top: 464px;
  }

  .course-swiper .slide-content .course-details {
    padding: 26px;
  }

  .course-swiper .swiper-button-prev {
    left: 25%;
  }

  .course-swiper .swiper-button-next {
    left: 60%;
  }

  .teacher-title-img {
    display: none;
  }

  #institutionalSection {
    padding-bottom: 62px;
  }

  #institutionalContainer .slide-content {
    flex-flow: column !important;
  }

  #institutionalContainer .details-container {
    width: 100%;
  }

  #institutionalContainer .details .line-1 {
    padding-bottom: 18px;
  }

  #institutionalContainer .details .line-2 .detail {
    padding-bottom: 8px;
  }

  #institutionalContainer .details .line-3 {
    padding-top: 12px;
  }

  #institutionalContainer .details {
    width: 100%;
  }

  #institutionalContainer .teacher-pic {
    width: 100%;
  }

  .institutional-swiper {
    /* margin-top: 24px; */
    height: 663px !important;
    position: relative;
  }

  #institutionalContainer .swiper-slide {
    padding: 24px 16px 0px 16px;
  }

  #institutionalContainer .details .line-1 .t-name,
  #institutionalContainer .details .line-1 .t-title {
    font-size: 16px;
  }

  #whySection .why-title {
    font-size: 22px;
    line-height: 32px;
    padding-bottom: 26px;
  }

  #whySection .why-list {
    flex-wrap: wrap;
  }

  #whySection .why-item {
    width: 100%;
    margin-bottom: 24px;
    margin-left: 16px;
    margin-right: 16px;
    }

  #whySection .details-container,
  #standardContainer,
  #noteContainer {
    width: 100%;
  }

  #whySection .details-container.migrate {
    width: 100%;
    padding-left: 0;
    padding-right: 0;
  }

  .swiper-slide {
    padding-left: 0px;
    padding-right: 0px;
  }

  #whySection .container {
    padding-left: 0;
    padding-right: 0;
  }

    #whySection .first-chosen-container {
      padding-left: 0px;
      padding-right: 0px;
    }

    #whySection .first-chosen-container .swiper-slide {
      height: 479px;
    }

  #whySection .migrate .swiper-button-next,
  #whySection .migrate .swiper-button-prev {
    width: 46px;
    height: 46px;
    display: none;
  }

    #whySection .migrate .swiper-button-prev {
      left: 0px;
    }

    #whySection .migrate .swiper-button-next {
      right: 0px;
    }

    tr {
      display: flex;
    }

    td {
      font-size: 14px;
      display: flex;
      align-items: center;
    }

  #calculateContainer,
  #standardContainer,
  #noteContainer,
  #calculateContainer .title,
  #standardContainer .title,
  #noteContainer .title,
  #standardSection .standard-item,
  #noteSection .note-item,
  #classSection .class-item {
    width: 100%;
  }

  #calculateContainer,
  #standardContainer,
  #noteContainer {
    flex-wrap: wrap;
  }

  #standardSection .total-btn,
  #noteSection .note-btn {
    font-size: 14px;
    padding: 12px 16px;
    margin-bottom: 12px;
  }

    #classSection .details-container .line-1, 
    #classSection .details-container .line-2 {
      flex-wrap: wrap;
    }

    #moreVideoSection .more-video-container {
      width: 100%;
      padding: 0 16px;
    }

    #moreVideoSection .title {
      padding: 0 8px 28px 8px;
    }

    #moreVideoSection .sec-title {
      padding-bottom: 16px;
    }

    #moreVideoSection .dec-title {
      width: 100%;
      padding-bottom: 24px;
    }

    #moreVideoSection .video-list {
      flex-wrap: wrap;
    }

    #moreVideoSection .video-item {
      width: 100%;
      margin-bottom: 42px;
    }

    #moreVideoSection .v-channel img {
      margin-bottom: 12px;
    }

    #institutionalContainer .swiper-pagination-bullets {
      /* width: 100% !important;
      height: auto !important;
      display: flex !important;
      flex-flow: row !important;
      justify-content: center !important;
      right: auto !important;
      top: auto !important;
      bottom: 0px !important;
      transform: none !important; */
      display: none;
    }
  
    #institutionalContainer .institutional-bullet {
      margin-left: 5px;
      margin-right: 5px;
  }

    #moreVideoSection {
      padding-top: 24px;
    }

    #moreVideoSection .red-title {
      padding-bottom: 22px;
    }

    .red-title .op-logo {
      height: 62px;
    }

    #courseContainer {
      width: 100vw;
    }
    .container {
      width: 100vw;
      padding-left: 16px;
      padding-right: 16px;
    }

    .course-swiper .slide-content {
      margin-left: -3px;
      margin-right: -3px;
      margin-top: 16px;
    }

    .why-swiper {
      border-radius: 16px;
    }

    #whySection .slide-content.migrate {
      box-shadow: none;
      margin-left: -3px;
      margin-right: -3px;
    }

    #standardContainer .details-container {
      display: flex;
      flex-direction: column;
    }

  #standardSection .total-btns {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    white-space: nowrap;
    max-width: 100%;
    padding: 0 16px 16px 16px;
    box-sizing: border-box;
    scrollbar-width: none;
    /* 隐藏 Firefox/IE 的滚动条 */
    -ms-overflow-style: none;
    /* 隐藏 Edge 的滚动条 */
  }

  #advantageSection,
  #calculateSection,
  #noteSection {
    padding-bottom: 60px;
  }

    #advantageSection {
      padding-top: 40px;
      padding-bottom: 26px;
      margin-bottom: 40px;
    }

    #calculateSection {
      padding-bottom: 26px;
    }

    #moreVideoSection .video-item {
      padding-left: 0px;
    }

    #noteSection {
      padding-top: 40px;
      padding-bottom: 0;
      margin-top: 20px;
    }

    #classSection {
      padding-top: 40px;
    }

    #classSection .class-item {
      margin-bottom: 40px;
    }

    #noteSection .note-item {
      margin-bottom: 40px;
    }

    .video-bg-div {
      transition: none !important;
    }

    #courseContainer .video-div:hover .video-bg-div {
      transform: scale(1);
    }

    .course-swiper .slide-content .bg-2 {
      transition: none !important;
    }

    .course-swiper .slide-content:hover .bg-2 {
      transform: scale(1) rotate(0deg);
    }

    #courseContainer .red-title {
      padding-bottom: 42px;
    }

    #institutionalContainer .red-title {
      padding-bottom: 24px;
    }

  .course-swiper .swiper-button-prev,
  .course-swiper .swiper-button-next {
    display: none;
  }

    .modal-content {
      width: 100vw;
      max-width: 100vw;
      padding: 0 16px;
    }

    #courseSection,
    #advantageSection {
      background-position: 68% 0px;
    }

    #courseSection .details-btn-wrapper {
      bottom: 32px;
  }

  #institutionalSection {
    padding: 40px 0;
    margin-bottom: 40px;
  }

  #moreVideoSection {
    padding: 40px 0 12px 0;
  }

  .imm-why-seciton {
    padding-bottom: 0 !important;
  }

  #whySection {
    padding-bottom: 26px;
}

    .tp-service-3-shape-5 {
      top: -54px;
      right: 24px;
    }

    .tp-service-3-shape-2 {
      top: 170px;
      left: 24px;
    }

    .tp-service-3-shape-4 {
      bottom: 0;
      right: 24px;
  }

  #whyContainer .empty-bg {
    height: 74%;
  }

  #whyContainer .first-chosen-container .why-swiper {
    height: 338px;
  }
}

@media screen and (max-width:1669px) {
  .main-menu >li{
    padding: 15px 0;
  }
  #headerNav .main-menu .menu-item a{
    font-size: 16px;
  }
}
@media screen and (max-width:1500px) {
  .main-menu >li{
    padding: 15px 0;
  }
  #headerNav .main-menu .menu-item a{
    font-size: 16px;
  }
}
@media screen and (max-width:1300px) {
  .main-menu >li{
    padding: 15px 0;
  }
  .menu-item-title,
  #headerNav .main-menu .menu-item a {
    font-size: 15px;
  }

  .why-swiper {
    height: 412px;
  }
}

@media screen and (min-width:600px) and (max-width:768px) {
  
}

@media screen and (min-width:768px) and (max-width:1200px) {
   


  .course-swiper {
    height: 530px !important;
  }

  #whySection .first-chosen-container .swiper-slide {
    height: 500px;
  }

  #whySection .first-chosen-container .swiper-slide {
    height: 512px;
  }
}

@media screen and (min-width:500px) and (max-width:900px) {
  .course-swiper {
    height: 502px !important;
}
}

@media screen and (min-width:1000px) and (max-width:1200px) {
  .course-swiper {
    height: 596px !important;
  }
}

@media screen and (min-width:1200px) and (max-width:1400px) {
  .why-swiper {
    height: 462px !important;
  }
}

  .w-22 {
    width: 22%;
  }

  .w-36 {
    width: 36%;
  }

  .flex-1 {
    flex: 1;
  }

  .lh-42 {
    line-height: 42px !important;
  }
  
.header-swiper .swiper-slide img{
	width:100%;
}
  
@media screen and (min-width:1301px){
	img.show-pc{
		display:block !important;
	}
	
	img.show-wap{
		display:none !important;
	}
}


@media screen and (max-width:1300px){
	img.show-pc{
		display:none !important;
	}
	
	img.show-wap{
		display:block !important;
	}
	
	 
}
 
 
 @media screen and (max-width:500px){
	 #headerSection {
    padding-top: 59px !important;
  }
 }