@media only screen and (min-width: 768px) {
  .mod {
    --mod-title-font-size: 0.48rem;
    --mod-subtitle-font-size: 0.2rem;
  }

  .mod .mod-hd .subtitle {
    margin-top: 0.32rem;
  }

  .r1 .mod {
    --mod-title-font-size: 0.32rem;
    --mod-subtitle-font-size: 0.2rem;
  }

  .r2 .mod .mod-hd .subtitle {
    margin-top: 0.4rem;
    line-height: 1.8;
  }

  .r3 .mod {
    --mod-subtitle-font-size: 0.18rem;
  }
}

.mod .mod-hd h3 {
  line-height: 1.3;
}

.mod-hd .num {
  display: inline-block;
  position: relative;
  font-weight: bold;
  color: var(--mod-num-color);
  font-size: var(--mod-num-font-size);
  padding-right: 0.72rem;
}

.mod-hd .num::before,
.mod-hd .num::after {
  content: "";
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 0.6rem;
  height: 0.02rem;
  background-color: var(--mod-num-color);
}

.mod-hd .num::after {
  right: 0;
}

.mod-hd .num::before {
  left: 0;
  display: none;
}

.mod-hd .center .num {
  padding-left: 0.9rem;
  padding-right: 0.9rem;
  margin-bottom: 0.16rem;
}

.mod-hd .center .num::before {
  display: block;
}

.r2 {
  background-image: url("../images/about/about-bg.jpg");
  background-repeat: no-repeat;
  background-position: 50% 100%;
  background-size: cover;
  background-color: #000;
  padding: var(--padding72) 0 0;
}

.r1-inner {
  position: relative;
}

.r1 .flex-box-left {
  width: 35%;
  padding-right: 0.8rem;
  padding-top: 0.04rem;
}

.r1 .flex-box-right {
  width: 65%;
}

.r1 .flex-box-left h2 {
  color: rgba(0, 0, 0, 1);
  font-size: var(--headline-title-font-size);
  font-weight: 700;
  line-height: 1.3;
}

.r1 .access-row {
  display: flex;
  gap: 0.12rem;
  margin-top: 0.24rem;
}

@media only screen and (min-width: 768px) {
  :root {
    --headline-title-font-size: 0.36rem;
  }

  .r1 .access-row {
    position: absolute;
    left: 0;
    bottom: 0;
  }
}

.r1 .mod-bd {
  color: rgba(28, 34, 44, 1);
  font-size: var(--font20);
  line-height: 1.8;
}

.r3 {
  padding: var(--padding60) 0 var(--padding80);
}

.r3 .subtitle {
  min-height: 0.54rem;
}

.r4 {
  padding-bottom: 0.12rem;
}

@media screen and (max-width: 767px) {
  .mod .mod-hd .subtitle {
    margin-top: 8px !important;
  }

  .r3 {
    padding: 32px 0;
  }

  .r3 .mod-extra {
    width: 100%;
    display: flex;
    justify-content: flex-end;
  }

  .r4 {
    padding-bottom: 0;
  }
}

@media only screen and (min-width: 768px) {
  .solution-list {
    --gap: 0.1rem;
    --item-margin-bottom: 0.28rem;
  }
}

.solution-list {
  padding-top: 0.28rem;
}

.solution-list-item {
  height: 100%;
}

.solution-list-item .wrap {
  box-sizing: border-box;
  height: 100%;
  min-height: 3rem;
  box-shadow: 0px 0.04rem 0.4rem 0px rgba(0, 0, 0, 0.1);
  background: rgba(255, 255, 255, 1);
  padding: 0.48rem 0.04rem 0.2rem;
  transition: all 0.5s;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.solution-list-item .title {
  color: rgba(0, 0, 0, 1);
  font-size: var(--font20);
  font-weight: 700;
  margin-bottom: 0.2rem;
  text-align: center;
  transition: color 0.5s;
}

.solution-list-item .desc {
  padding: 0 0.2rem;
  color: rgba(35, 35, 35, 1);
  font-size: var(--font14);
  line-height: 1.8;
  text-align: center;
  transition: color 0.5s;
}

.solution-list-item .icon {
  margin-bottom: 0.24rem;
  width: 0.7rem;
  height: 0.7rem;
  position: relative;
}

.solution-list-item img {
  transition: all 0.5s;
  max-width: 100%;
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
}

.solution-list-item .img1 {
}

.solution-list-item .img2 {
  opacity: 0;
  top: 0.16rem;
}

.solution-list-item:hover .wrap {
  background: linear-gradient(180deg, rgba(184, 27, 31, 1), rgba(216, 0, 39, 1) 100%);
}

.solution-list-item:hover .img1 {
  opacity: 0;
  top: 0.16rem;
}

.solution-list-item:hover .img2 {
  opacity: 1;
  top: 0;
}

.solution-list-item:hover .title,
.solution-list-item:hover .desc {
  color: #fff;
}

@media screen and (max-width: 767px) {
  .solution-list {
    padding-top: 16px;
  }

  .solution-list-item {
    height: auto;
  }

  .solution-list-item .wrap {
    padding: 20px 16px;
  }

  .solution-list-item .title {
    font-size: 16px;
  }

  .solution-list-item .desc {
    padding: 0;
    font-size: 14px;
  }

  .solution-list-item .icon {
    width: 32px;
    height: 32px;
  }
}

.history-area .box {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0 auto;
}

.history-area .circle-container {
  position: relative;
  width: 1400px;
  height: 1400px;
  border-radius: 50%;
  transition: transform 1s cubic-bezier(0.34, 1.56, 0.64, 1);
  z-index: 10;
}

.history-area .circle-container::before {
  content: "";
  position: absolute;
  width: 1116px;
  height: 1116px;
  border: 2px solid #fff;
  border-radius: 50%;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.history-area .year {
  position: absolute;
  font-size: 24px;
  color: white;
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
  transition: all 0.3s ease;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: 20px;
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.history-area .year-dot {
  width: 8px;
  height: 8px;
  background-color: white;
  border-radius: 50%;
  margin-top: 6px;
  box-shadow: 0 0 5px rgba(255, 255, 255, 0.8);
  transition: all 0.3s ease;
}

.history-area .year:hover .year-dot {
  transform: scale(1.3);
  box-shadow: 0 0 8px rgba(255, 255, 255, 1);
}

.history-area .year.top-year {
  color: var(--main-color);
  font-weight: bold;
  z-index: 10;
}

.history-area .year.top-year .year-dot {
  background-color: var(--main-color);
  box-shadow: 0 0 8px rgba(184, 27, 31, 0.8);
}

.history-area .center-content {
  text-align: center;
  color: white;
  padding: 20px;
}

.history-area .controls {
  margin-top: 30px;
  display: flex;
  justify-content: center;
  gap: 20px;
}

.history-area .control-btn {
  padding: 12px 25px;
  font-size: 1.1rem;
  background: rgba(255, 255, 255, 0.2);
  color: white;
  border: none;
  border-radius: 30px;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(5px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.history-area .control-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-3px);
}

.history-area .control-btn:active {
  transform: translateY(1px);
}

.history-area .current-top {
  margin-top: 20px;
  font-size: 1.2rem;
  background: rgba(255, 255, 255, 0.1);
  padding: 10px 20px;
  border-radius: 20px;
  display: inline-block;
}

.history-area {
  height: 8rem;
  overflow: hidden;
  margin-top: var(--padding52);
  position: relative;
}

.history-list {
  box-sizing: border-box;
  position: absolute;
  width: 800px;
  height: 400px;
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  padding-top: 80px;
}

.history-list:after {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 48px;
  background-color: #fff;
}

.history-list-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.history-list-item .title {
  color: rgba(255, 255, 255, 1);
  font-size: var(--font24);
  font-weight: 700;
  text-align: center;
  margin-bottom: 0.12rem;
}
.history-list-item .desc {
  color: rgba(255, 255, 255, 1);
  font-size: var(--font20);
  line-height: 1.6;
  text-align: center;
  margin-bottom: 0.36rem;
}

.history-list-item .pic {
  max-width: 7.2rem;
}

@media only screen and (min-width: 1000px) {
  .history-swiper-area {
    display: none;
  }

  .history-area {
    display: block;
  }

  .history-list li {
    height: 100%;
  }

  .history-list-item .title {
  }

  .history-list-item .desc {
    margin-left: auto;
    margin-right: auto;
    max-width: 680px;
  }

  .history-list-item .pic {
    width: 90%;
    margin-left: auto;
    margin-right: auto;
  }
}

@media only screen and (max-width: 999px) {
  .history-area {
    display: none;
  }

  .history-swiper-area {
    display: block;
  }
}

.history-swiper-area {
  padding-bottom: var(--padding100);
}

.year-area {
  position: relative;
  padding: 0.48rem 0.36rem;

  --swiper-navigation-size: 0.16rem;
  --swiper-navigation-color: #aeabc2;
}

.year-swiper::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 0.03rem;
  background-color: #aeabc2;
}
.year-item {
  display: flex;
  justify-content: center;
  font-size: 0.24rem;
  height: 1.64rem;
  color: #c2c2c2;
  position: relative;
  cursor: pointer;
  transition: all 0.3s;
  box-sizing: border-box;
  padding-bottom: 0.12rem;
}

.year-item:hover {
  color: #fff;
}

.year-item::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 0.2rem;
  height: 0.2rem;
  box-sizing: border-box;
  background-color: #fff;
  border: 0.05rem solid #e0e0e0;
  border-radius: 50%;
  transition: all 0.3s;
}

.swiper-slide-active .year-item {
  align-items: flex-end;
}

.year-area .swiper-slide-active .year-item {
  color: var(--main-color);
}

.year-area .swiper-slide-active .year-item::after {
  /* width: 0.48rem;
  height: 0.36rem;
  border: 0 none;
  border-radius: 0;
  background: url("../images/logo-small.svg") 50% 50% no-repeat;
  background-size: 100% auto;

  background-origin: 1px solid #f00; */

  background-color: var(--main-color);
  border-color: transparent;
}

.history-area .swiper-button-next,
.history-area .swiper-button-prev,
.year-area .swiper-button-next,
.year-area .swiper-button-prev {
  border: 0.02rem solid var(--swiper-navigation-color);
  border-radius: 50%;
  z-index: 2;
  width: 0.32rem;
  height: 0.32rem;
  margin: 0;
  transform: translateY(-50%);
  outline: none;
  user-select: none;
}

.history-area .swiper-button-prev,
.year-area .swiper-button-prev {
  left: 0;
}

.history-area .swiper-button-next,
.year-area .swiper-button-next {
  right: 0;
}

@media only screen and (max-width: 767px) {
  .year-area {
    --swiper-navigation-size: 16px;
  }

  .year-swiper::after {
    width: calc(100% - 96px);
    height: 1px;
  }

  .year-item {
    font-size: 16px;
  }

  .swiper-slide-active .year-item {
    align-items: flex-start;
  }

  .year-area .swiper-button-next,
  .year-area .swiper-button-prev {
    border: 1px solid var(--swiper-navigation-color);
    width: 32px;
    height: 32px;
  }

  .year-area .swiper-button-prev {
    left: 0;
  }

  .year-area .swiper-button-next {
    right: 0;
  }
}