.swiper-btn {
  gap: 8px;
}
.swiper-btn img {
  cursor: pointer;
  width: 3.75rem;
}
.swiper-button-next,
.swiper-button-prev {
  width: 3.75rem;
  height: 3.75rem;
  position: relative;
  left: auto;
  right: auto;
  cursor: pointer;
  border-radius: 1.25rem;
}
.swiper-button-next .iconfont {
  color: #1c56f9;
}
.swiper-button-prev:after,
.swiper-button-next:after {
  display: none;
}
.swiper-button-prev .iconfont,
.swiper-button-next .iconfont {
  color: #fff;
  font-size: 1rem;
}
.swiper-button-prev.swiper-button-disabled .iconfont,
.swiper-button-prev.swiper-button-disabled .iconfont {
  color: #1c56f9;
}
.swiper-button-prev.swiper-button-disabled,
.swiper-button-prev.swiper-button-disabled {
  background-color: rgba(28, 86, 249, 0.1);
  opacity: 1;
}
.swiper-button-prev .iconfont {
  transform: rotate(180deg);
}
.swiper-button-prev,
.swiper-button-next {
  background-color: #1c56f9;
}
.block1 {
  width: 100%;
  height: 100vh;
  position: relative;
  z-index: 2; /* 确保 block1 在 fixed-bg 上方 */
}
.block1 .bg-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  z-index: -1;
}
.block1 .bg-video video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.block1 .content {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  left: 11%;
}
.block1 .content h6 {
  font-family: "OPPO Sans 4.0";
  font-size: 1.125rem;
  line-height: 1.3125rem;
  margin-bottom: 0.875rem;
  color: #fff;
  font-weight: 400;
}
.block1 .content h3 {
  font-family: "Douyin Sans";
  max-width: 33.75rem;
  font-size: 3.75rem;
  line-height: 4.375rem;
  font-weight: 700;
  margin-bottom: 2.5rem;
  color: #fff;
}
.block1 .content .more-btn {
  font-family: "OPPO Sans 4.0";
  width: 11.25rem;
  border-radius: 1rem;
  gap: 1.875rem;
  padding: 0.875rem 1.875rem;
  font-size: 1.125rem;
  line-height: 1.3125rem;
  color: #fff;
  --c-glass: rgba(255, 255, 255, 0.1);
  --c-light: #fff;
  --c-dark: #000;
  --glass-reflex-dark: 0.8;
  --glass-reflex-light: 0.8;
  --saturation: 100%;
  border: none;
  background-color: color-mix(in srgb, var(--c-glass) 12%, transparent);
  backdrop-filter: blur(5px) saturate(var(--saturation));
  -webkit-backdrop-filter: blur(8px) saturate(var(--saturation));
  box-shadow:
    inset 0 0 0 1px
      color-mix(in srgb, var(--c-light) calc(var(--glass-reflex-light) * 10%), transparent),
    inset 1.8px 3px 0px -2px
      color-mix(in srgb, var(--c-light) calc(var(--glass-reflex-light) * 90%), transparent),
    inset -2px -2px 0px -2px
      color-mix(in srgb, var(--c-light) calc(var(--glass-reflex-light) * 80%), transparent),
    inset -3px -8px 1px -6px
      color-mix(in srgb, var(--c-light) calc(var(--glass-reflex-light) * 60%), transparent),
    inset -0.3px -1px 4px 0px
      color-mix(in srgb, var(--c-dark) calc(var(--glass-reflex-dark) * 12%), transparent),
    inset -1.5px 2.5px 0px -2px
      color-mix(in srgb, var(--c-dark) calc(var(--glass-reflex-dark) * 20%), transparent),
    inset 0px 3px 4px -2px
      color-mix(in srgb, var(--c-dark) calc(var(--glass-reflex-dark) * 20%), transparent),
    inset 2px -6.5px 1px -4px
      color-mix(in srgb, var(--c-dark) calc(var(--glass-reflex-dark) * 10%), transparent),
    0px 1px 5px 0px
      color-mix(in srgb, var(--c-dark) calc(var(--glass-reflex-dark) * 10%), transparent),
    0px 6px 16px 0px
      color-mix(in srgb, var(--c-dark) calc(var(--glass-reflex-dark) * 8%), transparent);
}
.block1 .content .more-btn img {
  width: 0.9375rem;
}
.block1 .scroll-box {
  position: absolute;
  bottom: 3.75rem;
  right: 4.5%;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 1.0625rem;
  line-height: 1.25rem;
  color: #fff;
  font-family: "OPPO Sans 4.0";
}
.block1 .scroll-box img {
  width: 0.5625rem;
}
.fixed-bg {
  background-color: #1c56f9;
  width: 100%;
  height: 100vh;
  /* position: fixed; */
  z-index: -1;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none; /* 不阻挡鼠标事件 */
}
.fixed-bg img {
  width: 53.4375rem;
}
.block2 {
  height: 100vh;
  width: 100%;
  /* backdrop-filter: blur(56px); */
  /* background: rgba(28, 86, 249, 0.94); */
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  /* z-index: 3;  */
}
.block2 .content {
  position: relative;
}
.fixed-bg p {
  width: 60.375rem;
  font-family: "OPPO Sans 4.0";
  font-size: 2.625rem;
  font-weight: 700;
  line-height: 3.125rem;
  color: #92aefb;
  text-align: center;
}
.fixed-bg .content {
  position: absolute;
  z-index: 1;
  opacity: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.fixed-bg p .char {
  display: inline-block;
  transition: color 0.3s ease;
  color: #92aefb;
}
.fixed-bg p .char.active {
  color: #fff;
}
.block2 .en-text {
  width: 53.4375rem;
  position: absolute;
  z-index: 1;
}
.block2 .zh-text {
  position: relative;
  height: 20rem;
  z-index: 2;
}
.block2 .zh-text p {
  width: 60.375rem;
  font-family: "OPPO Sans 4.0";
  font-size: 2.625rem;
  font-weight: 700;
  line-height: 3.125rem;
  color: rgba(255, 255, 255, 0.3);
  text-align: center;
}
.block2 .zh-text p .char {
  display: inline-block;
  transition: color 0.3s ease;
}
.block2 .zh-text p .char.active {
  color: #fff;
}

.block-title p {
  font-family: "OPPO Sans 4.0";
  font-size: 1.25rem;
  line-height: 1.4375rem;
  color: #2563eb;
  margin-bottom: 0.75rem;
}
.block-title h3 {
  font-size: 2.625rem;
  line-height: 3.125rem;
}
.block3 {
  background-color: #fff;
  padding-top: 7.5rem;
  padding-bottom: 3.75rem;
  position: relative;
  z-index: 1;
}
.block3 .block-title {
  text-align: center;
  margin-bottom: 2.5rem;
}
.block3 .list {
  gap: 1.75rem;
  margin-bottom: 3.75rem;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.block3 .list-item {
  width: 23.6875rem;
}
.block3 .list-item img {
  width: 100%;
  margin-bottom: 1.875rem;
  border-radius: 1.25rem;
}
.block3 .list-item .title {
  font-size: 1.625rem;
  font-family: "OPPO Sans 4.0";
  font-style: Regular;
  line-height: 1.875rem;
  margin-bottom: 0.75rem;
  padding-left: 0.625rem;
}
.block3 .list-item p {
  color: #3a3a3a;
  font-family: "OPPO Sans 4.0";
  font-style: Light;
  font-size: 1rem;
  line-height: 1.1875rem;
  padding-left: 0.625rem;
}
.block3 .more-btn {
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 11.875rem;
  height: 3.25rem;
  border-radius: 1rem;
  gap: 1.875rem;
  background: var(--color-blue);
  font-size: 1.125rem;
  line-height: 1.3125rem;
  color: #fff;
  font-family: "OPPO Sans 4.0";
  cursor: pointer;
}
.block3 .more-btn:hover {
  background: var(--color-blue-hover);
}
.block3 .more-btn img {
  width: 0.9375rem;
}
.block4-block5 {
  background: url("../img/index/bg1.png") no-repeat center/cover;
  position: relative;
  z-index: 1;
}
.block4 {
  padding-top: 8.125rem;
}
.block4 .block-title {
  margin-bottom: 2.5rem;
}
.block4 .list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.875rem 2.5rem;
  margin-bottom: 8.25rem;
}
.block4 .list-item {
  width: 32.125rem;
}
.block4 .list-item img {
  width: 100%;
  border-radius: 2.5rem;
  margin-bottom: 3.125rem;
}
.block4 .list-item .text-box {
  margin-left: 0.875rem;
}
.block4 .list-item .text-box .tag {
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.block4 .list-item .text-box .blue {
  font-family: "OPPO Sans 4.0";
  font-size: 1.125rem;
  line-height: 1.3125rem;
  color: #1c56f9;
}
.block4 .list-item .text-box .divider {
  background: rgba(0, 0, 0, 0.1);
  width: 1px;
  height: 1rem;
}
.block4 .list-item .text-box .gray {
  font-family: "OPPO Sans 4.0";
  font-size: 1.125rem;
  line-height: 1.3125rem;
  color: #666666;
}
.block4 .list-item .text-box .title {
  font-family: "OPPO Sans 4.0";
  font-size: 1.5rem;
  line-height: 1.75rem;
  color: #010101;
}
.block5 {
  padding-top: 7.5rem;
  padding-bottom: 8rem;
}
.block5 .flex-title {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  position: relative;
}
.block5 .swiper {
  height: 47.5rem;
  margin-top: 2.1875rem;
}
.block5 .slide-container {
  box-sizing: border-box;
  border: 1px solid rgba(28, 86, 249, 0.2);
  border-radius: 1.5rem;
  background: rgba(255, 255, 255, 1);
}
.block5 .left-img {
  width: 50%;
  height: 47.5rem;
  border-radius: 1.5rem 0 0 1.5rem;
}

.block5 .right-content {
  width: 50%;
  padding: 0 3.125rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.block5 .right-content .title {
  font-size: 1.75rem;
  line-height: 2rem;
  font-family: "OPPO Sans 4.0";
  max-width: 37.5rem;
  padding-bottom: 2.5rem;
  border-bottom: solid 1px rgba(0, 0, 0, 0.05);
}

.block5 .collapse-item {
  border-bottom: solid 1px rgba(0, 0, 0, 0.05);
}

.block5 .collapse-item .collapse-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.5rem;
  cursor: pointer;
}
.block5 .collapse-item .collapse-title .text {
  font-family: "OPPO Sans 4.0";
  font-size: 1.5rem;
  line-height: 1.75rem;
  color: #999999;
}
.block5 .collapse-item.active .collapse-title .text {
  color: #1c56f9;
}
.block5 .collapse-item.active .collapse-title .title-icon {
  opacity: 0;
}
.block5 .collapse-item .collapse-title .title-icon {
  width: 1.875rem;
  height: 1.875rem;
  opacity: 1;
  transition: all 0.3s ease-in-out;
}
.block5 .collapse-item .collapse-title .title-icon img {
  width: 100%;
}
.block5 .collapse-item .collapse-title .title-icon img path {
  fill: none;
  stroke: #666;
}
.block5 .collapse-item .collapse-content {
  height: 0;
  opacity: 0;
  overflow: hidden;
  transition: all 0.3s ease;
  padding-bottom: 1.5rem;
}

.block5 .collapse-item.active .collapse-content {
  height: auto; /* JS会处理具体高度，这里配合opacity */
  opacity: 1;
  padding-top: 0.625rem;
}
.block5 .collapse-item .collapse-content ul {
  margin-bottom: 1.5rem;
}
.block5 .collapse-item .collapse-content ul li {
  font-family: "OPPO Sans 4.0";
  font-size: 1.125rem;
  line-height: 1.75rem;
  color: #666;
  display: flex;
  align-items: center;
}
.block5 .collapse-item .collapse-content ul li::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  margin-right: 0.625rem;
  background-color: #666;
  display: inline-block;
}
.block5 .collapse-item .collapse-content .bottom {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding-bottom: 4rem;
}
.block5 .collapse-item .collapse-content .bottom .more-btn {
  font-family: "OPPO Sans 4.0";
  width: 8.75rem;
  height: 2.75rem;
  border: solid 1px rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  font-size: 1rem;
  font-weight: 500;
  color: #666;
  border-radius: 0.75rem;
  cursor: pointer;
}

.block5 .collapse-item .collapse-content .bottom .more-btn .iconfont {
  color: #666;
  font-size: 1rem;
}
.block5 .collapse-item .collapse-content .bottom .icon {
  width: 5rem;
  height: 5rem;
}
.block6 {
  background-color: #f8f9fc;
  padding-top: 8.125rem;
  padding-bottom: 8.875rem;
  position: relative;
  z-index: 1;
}
.block6 .logo-wall {
  position: relative;
  margin-top: 3.75rem;
}
.block6 .linear {
  width: 6rem;
  height: calc(100% + 1rem);
  position: absolute;
  top: -0.3rem;
  z-index: 2;
}
.block6 .linear.left {
  left: -0.5rem;
  background: linear-gradient(90deg, rgb(255, 255, 255) 27.377%, rgba(255, 255, 255, 0) 99.077%);
}
.block6 .linear.right {
  transform: rotate(180deg);
  right: -0.5rem;
  background: linear-gradient(90deg, rgb(255, 255, 255) 27.377%, rgba(255, 255, 255, 0) 99.077%);
}
.block6 .swiper {
  margin-bottom: 1.25rem;
}
.block6 .swiper .swiper-slide {
  width: auto;
  height: 5rem;
  border-radius: 1.875rem;
}
.block6 .swiper .swiper-slide img {
  height: 5rem;
  width: auto;
}
.block7 {
  padding-top: 7.5rem;
  padding-bottom: 8.75rem;
  background: #ffffff url("../img/index/bg7.png") no-repeat right/cover;
  position: relative;
  z-index: 1;
}
.block7 .flex-title {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 3.375rem;
}
.block7 .swiper {
  width: 100%;
  padding-left: calc((100% - 100rem) / 2);
}
.block7 .swiper-slide {
  width: 26.25rem;
}
.block7 .swiper-slide .top-img {
  width: 100%;
  border-radius: 1.875rem 1.875rem 0 0;
  font-size: 0;
}
.block7 .swiper-slide .top-img img {
  width: 100%;
  border-radius: 1.875rem 1.875rem 0 0;
}
.block7 .swiper-slide .content {
  padding: 2rem 1.5rem 2rem;
  border: 1px solid rgba(37, 99, 235, 0.2);
  border-radius: 0 0 1.875rem 1.875rem;
  border-top: none;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-start;
  background-color: #fff;
}

.block7 .swiper-slide .content .sub-title {
  font-family: "OPPO Sans 4.0";
  font-weight: 200;
  font-size: 1.125rem;
  line-height: 1.3125rem;
  color: #666;
  margin-bottom: 1rem;
}
.block7 .swiper-slide .content .title {
  font-family: "OPPO Sans 4.0";
  font-size: 1.5625rem;
  line-height: 2rem;
  color: #333;
  height: 4rem;
  margin-bottom: 1.5rem;
}
.block7 .swiper-slide .content .more-btn {
  font-family: "OPPO Sans 4.0";
  padding: 0.75rem 1.25rem;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 0.75rem;
  cursor: pointer;
  transition: all 0.3s ease;
}
.block7 .swiper-slide .content .more-btn .iconfont {
  margin-left: 1rem;
  font-size: 0.9375rem;
  color: #666;
  transition: all 0.3s ease;
}
.block7 .swiper-slide .content .more-btn:hover {
  border: solid 1px #1c56f9;
  color: #1c56f9;
}
.block7 .swiper-slide .content .more-btn:hover .iconfont {
  color: #1c56f9;
}
@media (max-width: 1920px) {
  .block7 .swiper {
    padding-left: calc((100% - 1600px) / 2);
  }
}
@media (max-width: 1600px) {
  .block7 .swiper {
    padding-left: 5%;
  }
}
@media (max-width: 768px) {
  .fixed-bg img {
    width: 90%;
  }
  .fixed-bg p {
    width: 70%;
    font-size: 2.6rem;
    line-height: 1.4;
  }
  .block3 .list {
    grid-template-columns: repeat(2, 1fr);
  }
  .block3 .list-item {
    width: 100%;
    min-width: 0;
  }
  .block3 .list-item .title {
    font-size: 1.3rem;
  }
  .block3 .list-item p {
    font-size: 1.2rem;
    line-height: 1.5;
  }
  .block4 .list {
    grid-template-columns: repeat(2, 1fr);
  }
  .block4 .list-item {
    width: 100%;
    min-width: 0;
  }
  .block4 .list-item .text-box .gray,
  .block4 .list-item .text-box .blue {
    font-size: 1rem;
  }
  .block4 .list-item .text-box .title {
    font-size: 1.3rem;
  }
  .block-title p {
    font-size: 1.5rem;
  }
  .block-title h3 {
    font-size: 2rem;
  }
  .block5 .slide-container {
    flex-direction: column;
  }
  .block5 .right-content,
  .block5 .left-img {
    width: 100%;
  }
  .block5 .left-img {
    height: auto;
    border-radius: 2.625rem;
  }
  .block5 .swiper {
    height: 100%;
  }
  .block5 .right-content {
    padding: 1.5rem;
  }
  .block5 .right-content .title {
    font-size: 1.65rem;
  }
  .block5 .collapse-item .collapse-title .text {
    font-size: 1.25rem;
  }
  .block5 .collapse-item .collapse-content .bottom .more-btn .iconfont {
    font-size: 1.25rem;
  }
  .block7 .swiper-slide .content .title {
    font-size: 1.25rem;
  }
}