.section-sty {
  position: relative;
  margin-bottom: 60px;
}

h2,
h4 {
  font-weight: 800;
  font-style: italic;
  font-size: 25px;
  line-height: 1em;
  text-transform: uppercase;
}

.first-section {
  overflow-x: hidden;
  padding-top: 50px;
}

.two-img {
  position: relative;
  display: flex;
}

.left-img,
.right-img {
  display: flex;
  align-items: flex-end;
}

.left-img {
  justify-content: flex-end;
  width: 33%;
}

.left-img img {
  position: absolute;
  width: 24%;
  left: 20%;
  top: 13%;
}

.right-img {
  justify-content: flex-start;
  width: 62%;
}

.right-img img {
  width: 88%;
}

.text-dec {
  position: relative;
  padding: 80px 80px 10px 200px;
  margin-top: -115px;
  background-color: #eeede9;
  z-index: 2;
}



.text-dec .dec-title h1 {
  color: #333;
  font-weight: 800;
  line-height: 1em;
  font-size: 60px;
  text-transform: uppercase;
  margin: 0 0 15px;
  position: relative;
}

.text-dec .small-title h4 {
  font-weight: 800;
  font-style: italic;
  line-height: 30px;
  font-size: 22px;
  color: #014d81;
  padding: 15px 0;
  position: relative;
  margin-bottom: unset;
}

.text-video {
  position: relative;
  display: flex;
  flex-wrap: wrap;
}

.left-text {
  width: 55%;
}

.right-video {
  width: 40%;
}

.left-text .first-text,
.last-text .first-text {
  margin-bottom: 15px;
  line-height: 30px;
}

.left-text ul {
  padding: 0 0 0 40px;
  list-style: disc;
  line-height: 30px;
}

.right-video img {
  display: block;
  margin: 15px auto 20px;
  max-width: 337px;
}

.right-video .video-item {
  position: relative;
  display: inline-block;
  overflow: hidden;
  background-position: 50%;
  background-size: 110% auto;
}

.right-video .img-responsive {
  display: block;
  max-width: 100%;
  height: auto;
}

.play-btn {
  position: absolute;
  top: 50%;
  right: 50%;
  width: 120px;
  height: 120px;
  margin-top: -60px;
  margin-right: -60px;
  fill: #fff;
  -webkit-transition-duration: 0.23s;
  -o-transition-duration: 0.23s;
  transition-duration: 0.23s;
}

.last-text {
  position: relative;
}

.second-swiper,
.last-swiper {
  min-height: 80px;
}

.second-section {
  padding: 0;
  background-image: url(https://www.yamaha-motor.com.cn/marine/product/accessories/img/helm-master-ex/bg-blue-texture.jpg);
  background-position: 50%;
  background-size: cover;
}

.second-section .swiper {
  overflow: unset;
  overflow-x: clip;
}

.second-section h2,
.second-section p {
  color: #ffffff;
}

.second-section h2 {
  line-height: 24px;
  margin-bottom: 15px;
}

.second-section p {
  line-height: 30px;
}

.second-section .swiper-item {
  display: flex;
  flex-wrap: wrap;
}

.second-section .swiper-pagination-bullet {
  background-color: #ffffff;
}

.second-section .swiper-pagination-bullet-active {
  background-color: #ffffff; /* 当前帧的颜色 */
}

.swiper-item .item-image,
.swiper-item .item-text {
  width: 48%;
}

.swiper-item .item-text {
  padding: 40px 20px 30px 20px;
}

.second-section hr {
  height: 5px;
  background-repeat: repeat-x;
  background-position: 0;
  background-size: 12px 100%;
  display: block;
  width: 105px;
  border: none;
  margin: 10px 0;
  text-align: left;
  opacity: unset;
}

hr.white {
  background-image: url(https://www.yamaha-motor.com.cn/marine/product/accessories/img/helm-master-ex/wave-white.svg);
}

.dotted-header {
  position: relative;
  text-align: center;
  margin: 20px 0;
  overflow: hidden;
}

.dotted-header h2 {
  position: relative;
  display: inline-block;
  margin-bottom: 15px;
  overflow-x: visible;
}

.dotted-header h2::before,
.dotted-header h2::after {
  background-image: url(https://www.yamaha-motor.com.cn/marine/product/accessories/img/helm-master-ex/dots-black.svg);
  content: "";
  position: absolute;
  height: 6px;
  top: 12px;
  width: 600px;
  background-size: 6px 6px;
}

.dotted-header h2::before {
  right: 100%;
  margin-right: 15px;
}

.dotted-header h2::after {
  left: 100%;
  margin-left: 15px;
}

.swiper-button-next,
.swiper-button-prev {
  color: #105baa; /* 箭头的颜色 */
  font-size: 30px; /* 箭头的大小 */
}

.swiper-button-next {
  right: -3%;
}

.swiper-button-prev {
  left: -3%;
}

.swiper-button-next::after,
.swiper-button-prev::after {
  font-size: 70px; /* 箭头图标的大小 */
}

.block-text {
  color: #014d81;
  font-weight: 700;
  line-height: 24px;
  font-size: 20px;
  width: 200px;
  margin-left: 20%;
  cursor: pointer;
  line-height: 25px;
  position: relative;
  display: flex;
  align-items: center;
}

.third-section .swiper-slide:not(:last-child)::after {
  display: inline-block;
  height: 42px;
  width: 2px;
  background-color: #d2d2d2;
  content: "";
  position: absolute;
  top: 20px;
  right: -40px;
}

.light-blue,
.block-text-active {
  color: #32ccfe;
}

.free-swi {
  position: relative;
  margin-bottom: 30px;
}

.auto-video {
  overflow: hidden;
}

.auto-video video {
  width: 100vw;
}

.auto-sty {
  background-color: #f3f3f3;
  display: none;
}

.comp-sty {
  display: none;
}

.auto-dec {
  padding: 40px 20px;
}

.auto-title {
  color: #014d81;
  margin-bottom: 15px;
}

.auto-detail {
  font-weight: 400;
  font-size: 18px;
  line-height: 24px;
  margin-bottom: 15px;
}

.auto-dec-list {
  display: flex;
  list-style: none;
  padding: 0;
}

.auto-dec-list li {
  font-weight: 700;
  font-size: 16px;
  line-height: 20px;
  position: relative;
  padding: 15px 0 15px 15px;
  margin: 10px 50px;
  line-height: 24px;
}

.auto-dec-list li::before {
  content: "\2022";
  color: #32ccfe;
  font-weight: 700;
  display: inline-block;
  width: 1em;
  margin-left: -1em;
}

.auto-dec-list li::after {
  display: inline-block;
  height: 100%;
  width: 2px;
  background-color: #d2d2d2;
  content: "";
  position: absolute;
  top: 0;
  right: -50px;
}

.auto-dec-list li:last-child::after {
  display: none;
}

.shows {
  display: block;
  animation: shows 0.6s cubic-bezier(0.39, 0.575, 0.565, 1) both;
}


.show-flex {
  display: flex;
  animation: shows 0.6s cubic-bezier(0.39, 0.575, 0.565, 1) both;
  justify-content: space-between;
  align-items: center;
}

.last-section .comp-text {
  width: 44%;
  /* background-color: #f3f3f3; */
}

.last-swiper .block-text {
  display: flex;
  align-items: center;
  text-align: center;
}

.comp-title {
  margin-bottom: 15px;
}

.comp-dec {
  line-height: 30px;
  margin-bottom: 15px;
}

.comp-dec-small {
  font-size: 12px;
  margin-bottom: 15px;
}

.comp-img {
  padding: 20px 0;
  margin: unset;
  width: 54%;
}

.last-section .swiper-slide:not(:last-child)::after {
  display: inline-block;
  height: 42px;
  width: 2px;
  background-color: #d2d2d2;
  content: "";
  position: absolute;
  top: 15px;
  right: -40px;
}

.sys-section {
  padding-top: 60px;
  /* background-image: -webkit-gradient(linear, left top, left bottom, from(#f3f3f3), color-stop(50%, #f3f3f3), color-stop(50%, #fff), to(#fff));
  background-image: linear-gradient(180deg, #f3f3f3, #f3f3f3 50%, #fff 0, #fff); */
  background-size: cover;
  background-repeat: no-repeat;
}

.sys-section h2 {
  font-size: 32px;
}

.sys-tab {
  margin-bottom: 50px;
}

.list-model {
  display: block;
  list-style-type: none;
  padding: 0;
  margin: 0;
  text-align: center;
}

.list-model li {
  display: inline-block;
  border-top: 1px solid #d2d2d2;
  border-bottom: 1px solid #d2d2d2;
  border-right: 1px solid #d2d2d2;
  margin-left: -4px;
}

.list-model li a {
  font-weight: 800;
  font-style: italic;
  font-size: 25px;
  line-height: 1em;
  padding: 20px 60px;
  display: block;
  color: #333;
  position: relative;
}

.list-model li:first-child {
  border-left: 1px solid #d2d2d2;
}

.list-model li.active {
  border-top: none;
  border-bottom: none;
}

.list-model li.active a {
  border-top: 3px solid #005c97;
  padding-top: 18px;
}

.list-model li.active a::after {
  content: "";
  position: absolute;
  bottom: -18px;
  left: 50%;
  margin-left: -20px;
  width: 0;
  height: 0;
  border-left: 18px solid transparent;
  border-right: 18px solid transparent;
  border-top: 18px solid #005c97;
}

.list-model li a:hover {
  background-color: #005c97;
  color: #fff;
}

.list-model li.active a:hover {
  background-color: inherit;
  color: #000;
}

.sys-content {
  background: none;
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.one-cont {
  display: flex;
}

.sys-img {
  position: relative;
  margin-bottom: 50px;
}

.sys-img img {
  display: block;
  max-width: 100%;
  height: 38vh;
}

.sys-spot,
.sys-spot span.dot {
  display: flex;
  justify-content: center;
}

.sys-spot {
  position: absolute;
  margin: -0.666em auto auto -0.666em;
  align-items: center;
}

.one-cont .left-spot {
  top: 65%;
  left: 30%;
}

.one-cont .right-spot {
  top: 55%;
  left: 51%;
}

.two-cont .left-spot {
  top: 40%;
  left: 25%;
}

.two-cont .right-spot {
  top: 15%;
  left: 70%;
}

.last-cont .left-spot {
  top: 40%;
  left: 3%;
}

.last-cont .right-spot {
  top: 25%;
  left: 50%;
}

.sys-spot .outer-border {
  width: 70px;
        height: 70px;
        background: hsla(0, 0%, 98%, .8);
        border-radius: 50%;
        position: absolute;
        z-index: 12;
}

.sys-spot span.dot {
  width: 52px;
  height: 52px;
  position: relative;
  background: #fff;
  border-radius: 50%;
  transform-origin: 50% 50%;
  transition: opacity .2s ease-in, transform .1s ease-out, -webkit-transform .1s ease-out;
  color: #fff;
  font-size: 1.5em;
  padding: 0;
  text-align: center;
  line-height: 32px;
  overflow: hidden;
  opacity: 1;
  z-index: 13;
}

.is-active.sys-spot span.dot {
  background: #005c97;
  cursor: pointer;
}

.sys-spot span.dot em {
  position: relative;
  display: block;
  width: 24px;
}

.sys-spot span.dot em:after, .sys-spot span.dot em:before {
  content: "";
  position: absolute;
  height: 2px;
  width: 24px;
  top: 50%;
  left: 0;
  margin-top: -1px;
  background: grey;
}

.sys-spot span.dot em:before {
  transform: rotate(0deg);
}

.sys-spot span.dot em:after {
  transform: rotate(90deg);
}

.sys-spot span.dot:hover em:after, .sys-spot span.dot:hover em:before {
  background: #005c97;
}

.is-active.sys-spot span.dot em:after, .is-active.sys-spot span.dot em:before {
  background: #fff;
}

.sys-detail {
  text-align: left;
    width: 80%;
}

.sys-detail-title {
  color: #014d81;
  padding: 0 0 15px;
}

.sys-detail-title h4 {
  font-weight: 600;
  font-size: 26px;
  font-style: normal;
  line-height: 1.2em;
  text-align: left;
  margin-bottom: 0;
}

.sys-spot span.dot:hover {
  cursor: pointer;
}

.special-bottom {
  display: inline-block;
  position: relative;
}

.comp-active .special-bottom::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 100%;
  height: 3px; /* 线条的高度 */
  background-color: #32ccfe; /* 线条的颜色 */
}

@keyframes shows {
  0% {
    -webkit-transform: translateZ(-80px);
    transform: translateZ(-80px);
    opacity: 0;
  }

  100% {
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
    opacity: 1;
  }
}

@media screen and (min-width:992px) {
  .block-text {
    min-height: 75px;
  }
  .text-dec::before {
    display: block;
    content: "";
    background: #eeede9;
    height: 100%;
    width: 300%;
    position: absolute;
    top: 0;
    left: 0;
  }

  .swiper-item .item-image img {
    margin-top: -55px;
  }

  .swiper-item .item-image {
    padding-bottom: 30px;
  }
  
  #swiper-pagination2,#swiper-pagination3 {
    display: none;
  }

  .comp-active {
    /* border-bottom: 4px solid #32ccfe; */
    color: #000;
    /* padding: 0 0 10px; */
  }

  .last-swiper .swiper-wrapper {
    margin-top: 1%;
  }
}

@media screen and (max-width:991px) {
  .section-sty {
    margin-bottom: 40px;
    overflow: hidden;
  }

  .auto-dec-list {
    flex-direction: column;
  }
  .swiper-button-next,.swiper-button-prev {
    display: none;
  }

  .text-dec {
    padding: 40px 20px 20px 20px;
    margin-top: -20px;
  }

  .text-dec .dec-title h1 {
    font-weight: 800;
    font-size: 8vw;
    line-height: 1em;
  }

  .left-text,.right-video,.swiper-item .item-image, .swiper-item .item-text{
    width: 100%;
  }

  #swiper-pagination2,#swiper-pagination3 {
    bottom: -4px;
  }

  .swiper-item .item-text {
    order: 1;
  }

  .swiper-item .item-image {
    order: 2;
  }
  
  .second-section .swiper-item {
    margin-bottom: 20px ;
  }

  .block-text {
    font-weight: 700;
    font-size: 15px;
    line-height: 1.1;
    width: 100%;
    margin-left: unset;
    text-align: center;
    min-height: 49.5px;
  }

  .swiper-pagination-bullet {
    background-color: #403d3d;
  }
  
  .swiper-pagination-bullet-active {
    background-color: #869791; /* 当前帧的颜色 */
  }

  .third-section .swiper-slide:not(:last-child)::after {
    top: 0px;
    right: 35px;
  }

  .last-section .swiper-slide:not(:last-child)::after {
    top: 10px;
    right: 35px;
  }

  .show-flex {
    flex-direction: column;
  }

  .auto-dec-list li {
    margin: unset;
  }

  .sys-section h2 {
    font-size: 25px;
  }

  .sys-section {
    padding-top: 20px;
  }

  .sys-img img {
    height: auto;
  }

  .sys-detail-title h4 {
    font-weight: 600;
    font-size: 20px;
    line-height: 1.8em;
    text-align: center;
  }

  .list-model li {
    width: 32%;
  }

  .list-model li a {
    font-size: 16px;
    padding: 10px;
  }

  .list-model li.active a {
    padding-top: 10px;
  }

  .comp-active {
    color: #000;
    /* padding: 0 0 10px; */
  }

  .last-swiper .block-text {
    margin-top: 5%;
  }
  
  .comp-img,.last-section .comp-text {
    width: 100%;
  }

}