body * {
  box-sizing: border-box;
  flex-shrink: 0;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
html,
body {
  margin: 0;
  padding: 0;
  font-family:
    PingFangSC-Regular,
    Roboto,
    Helvetica Neue,
    Helvetica,
    Tahoma,
    Arial,
    PingFang SC-Light,
    Microsoft YaHei;
}

button {
  margin: 0;
  padding: 0;
  border: 1px solid transparent;
  outline: none;
  background-color: transparent;
}

button:active {
  opacity: 0.6;
}
.flex-1 {
  flex: 1;
}
.flex-col {
  display: flex;
  flex-direction: column;
}
.flex-row {
  display: flex;
  flex-direction: row;
}
.justify-start {
  display: flex;
  justify-content: flex-start;
}
.justify-center {
  display: flex;
  justify-content: center;
}

.justify-end {
  display: flex;
  justify-content: flex-end;
}
.justify-evenly {
  display: flex;
  justify-content: space-evenly;
}
.justify-around {
  display: flex;
  justify-content: space-around;
}
.justify-between {
  display: flex;
  justify-content: space-between;
}
.align-start {
  display: flex;
  align-items: flex-start;
}
.align-center {
  display: flex;
  align-items: center;
}
.align-end {
  display: flex;
  align-items: flex-end;
}

.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.6s ease-out,
    transform 0.6s ease-out;
}
.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}
.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.5s ease-out,
    transform 0.5s ease-out;
}
.stagger-children > *.visible {
  opacity: 1;
  transform: translateY(0);
}
.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition:
    opacity 0.6s ease-out,
    transform 0.6s ease-out;
}
.slide-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}
.slide-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition:
    opacity 0.6s ease-out,
    transform 0.6s ease-out;
}
.slide-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}
.scale-in {
  opacity: 0;
  transform: scale(0.8);
  transition:
    opacity 0.4s ease-out,
    transform 0.4s ease-out;
}
.scale-in.visible {
  opacity: 1;
  transform: scale(1);
}
/* 通用标题样式 */
.section-title {
  font-family: Inter, Inter;
  font-weight: bold;
  font-size: 0.07rem;
  color: #2563eb;
  line-height: 0.1rem;
  letter-spacing: 5px;
  margin-bottom: 0.1rem;
}
.section-subtitle {
  font-family:
    Noto Sans SC,
    Noto Sans SC;
  font-weight: 900;
  font-size: 0.31rem;
  color: #0f172a;
  line-height: 0.31rem;
  margin-bottom: 0.25rem;
}

/* 回到顶部按钮样式 */
.back-to-top {
  position: fixed;
  bottom: 40px;
  right: 40px;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, #779ff5, rgba(0, 91, 171, 1) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 1000;
  box-shadow: 0 4px 12px rgba(70, 153, 248, 0.3);
}

.back-to-top:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(70, 153, 248, 0.3);
}

.back-to-top:active {
  transform: translateY(0);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top svg {
  color: white;
  width: 20px;
  height: 20px;
}

/* 顶部导航 */
.top {
  width: 100%;
  height: 0.44rem;
  background-color: #ced5da;
  padding: 0.1rem 0.2rem;
  position: fixed;
  left: 0;
  top: 0;
  z-index: 9999999;
}

.top-logo {
  width: 0.3rem;
  height: 0.3rem;
  margin-right: 0.06rem;
}
.top-title {
  font-family:
    Noto Sans SC,
    Noto Sans SC;
  font-weight: 900;
  font-size: 0.1rem;
  color: #0f172a;
  line-height: 0.15rem;
}
.top-subtitle {
  font-family: Inter, Inter;
  font-weight: bold;
  font-size: 0.06rem;
  color: #2563eb;
  line-height: 0.06rem;
  letter-spacing: 2px;
  margin-top: 0.01rem;
}
.top nav a {
  font-family:
    Noto Sans SC,
    Noto Sans SC;
  font-weight: bold;
  font-size: 0.07rem;
  color: #475569;
  line-height: 0.1rem;
  text-decoration: none;
  margin-right: 0.25rem;
  transition: color 0.3s ease;
}
.top .top-right button {
  width: 0.58rem;
  height: 0.18rem;
  line-height: 0.18rem;
  text-align: center;
  background: #2563eb;
  box-shadow:
    0rem 0.01rem 0.02rem -0.01rem #bfdbfe,
    0rem 0.02rem 0.03rem -0.01rem #bfdbfe;
  border-radius: 52.08rem;
  font-family:
    Noto Sans SC,
    Noto Sans SC;
  font-weight: bold;
  font-size: 0.07rem;
  color: #ffffff;
}
/* 开关容器 */
.lang-switch {
  margin-left: 0.2rem;
  position: relative;
  width: 0.68rem;
  height: 0.16rem;
  border-radius: 52rem;
  background-color: #e5e7eb;
  border: 0.01rem solid #2563eb;
  cursor: pointer;
  transition: all 0.3s ease;
  overflow: hidden;
}

/* 滑块（选中区域背景） */
.switch-slider {
  position: absolute;
  top: 0;
  left: 0;
  width: 50%;
  height: 100%;
  border-radius: 52rem;
  background-color: #2563eb;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 文字容器 */
.switch-text {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-around;
  font-size: 0.07rem;
  font-weight: 500;
  user-select: none;
}

.text-zh {
  color: #ffffff;
  z-index: 1;
}

.text-en {
  color: #2563eb;
  z-index: 1;
}

/* 切换到英文的状态 */
.lang-switch.en-active .switch-slider {
  transform: translateX(100%);
}

.lang-switch.en-active .text-zh {
  color: #4b5563;
}

.lang-switch.en-active .text-en {
  color: #ffffff;
}
.top nav a:hover {
  color: #345bec;
}

.top nav a.active {
  color: #345bec;
}
/* 主页 */
.content-section {
  position: relative;
  text-align: center;
  height: 5.63rem;
  background: url(../images/index/top-bg.jpg) no-repeat center center;
  background-size: cover;
  margin-top: 0.44rem;
}
.content-section .arrow {
  position: absolute;
  bottom: 0.31rem;
  left: 50%;
  transform: translateX(-50%);
  color: #94a3b8;
  font-size: 0.2rem;
  z-index: 99999;
}
.content-section .tag {
  width: 1.48rem;
  height: 0.16rem;
  background: rgba(59, 130, 246, 0.2);
  border-radius: 52.08rem 52.08rem 52.08rem 52.08rem;
  border: 0.01rem solid rgba(96, 165, 250, 0.3);
}
.content-section .tag .circle {
  width: 0.05rem;
  height: 0.05rem;
  background: #3b82f6;
  border-radius: 50%;
}
.content-section .tag .text {
  font-family: Inter, Inter;
  font-weight: bold;
  font-size: 0.06rem;
  color: #bfdbfe;
  line-height: 0.08rem;
  letter-spacing: 2px;
  margin-left: 0.04rem;
}
.content-section .title {
  font-family:
    Noto Sans SC,
    Noto Sans SC;
  font-weight: 900;
  font-size: 0.45rem;
  color: #ffffff;
  line-height: 0.5rem;
  margin: 0.21rem 0;
}
.content-section .subtitle {
  font-weight: 900;
  font-size: 0.48rem;
  color: #81a7f9;
  line-height: 0.5rem;
}
.content-section .desc {
  font-family:
    Noto Sans SC,
    Noto Sans SC;
  font-weight: 300;
  font-size: 0.13rem;
  color: #cbd5e1;
  line-height: 0.17rem;
  margin: 0.21rem 0;
}
.content-section .btns button {
  text-align: center;
  width: 0.92rem;
  height: 0.35rem;
  line-height: 0.35rem;
  background: #2563eb;
  border-radius: 0.06rem;
  color: #ffffff;
  font-family:
    Noto Sans SC,
    Noto Sans SC;
  font-weight: bold;
  font-size: 0.1rem;
}
.content-section .btns button:nth-child(2) {
  background: transparent;
  border: 0.01rem solid rgba(255, 255, 255, 0.3);
  margin-left: 0.13rem;
}
/* 关于我们 */
.about-section {
  padding: 0.83rem 0.82rem 0.63rem 0.13rem;
}
.about-section .left {
  width: 4.63rem;
  margin-right: 0.5rem;
}

.about-section .section-subtitle {
  max-width: 3.89rem;
}
.about-section .section-intro {
  width: 3.89rem;
  font-family:
    PingFang SC,
    PingFang SC;
  font-weight: 400;
  font-size: 0.1rem;
  color: #3d3d3d;
  line-height: 0.19rem;
}
.about-section .section-desc {
  width: 3.8rem;
  height: 0.34rem;
  border-radius: 0rem 0.08rem 0.08rem 0rem;
  border-left: 0.02rem solid #2563eb;
  font-family:
    Noto Sans SC,
    Noto Sans SC;
  font-weight: 500;
  font-size: 0.1rem;
  color: #6b7280;
  padding-left: 0.19rem;
  margin: 0.18rem 0 0.31rem 0;
}
.about-section .section-num .num-item {
  margin-top: 0.29rem;
  width: 50%;
}
.about-section .section-num .num {
  font-family:
    Noto Sans SC,
    Noto Sans SC;
  font-weight: 900;
  font-size: 0.19rem;
  color: #2563eb;
  line-height: 0.21rem;
}
.about-section .section-num .text {
  font-family:
    Noto Sans SC,
    Noto Sans SC;
  font-weight: bold;
  font-size: 0.08rem;
  color: #9ca3af;
  line-height: 0.13rem;
  margin-top: 0.04rem;
}
/* 企业文化 */
.culture-section {
  width: 100%;
  height: 2.37rem;
  padding: 0.67rem 0.52rem;
  background: url(../images/index/culture-bg.png) no-repeat center center;
  background-size: cover;
  background-color: #0f172a;
}

.culture-list img {
  width: 0.5rem;
  height: 0.5rem;
  transition: all 0.3s ease;
}
.culture-list img:hover {
  transform: translateY(-0.05rem);
}
.culture-list .culture-title {
  font-family:
    Noto Sans SC,
    Noto Sans SC;
  font-weight: bold;
  font-size: 0.13rem;
  color: #ffffff;
  line-height: 0.17rem;
  margin: 0.17rem 0 0.08rem;
}
.culture-list .culture-desc {
  width: 1.02rem;
  font-family:
    PingFang SC,
    PingFang SC;
  font-weight: 500;
  font-size: 0.07rem;
  color: #ffffff;
  line-height: 0.12rem;
  text-align: center;
}
/* 业务核心 */
.core-section {
  padding: 0.83rem 0.54rem;
  background: #f8fafc;
}

.core-section .core-list {
  gap: 0.25rem;
  margin-top: 0.5rem;
}
.core-section .core-item {
  background: #fff;
  box-shadow: 0rem 0.13rem 0.26rem -0.06rem rgba(0, 0, 0, 0.25);
  border-bottom: 0.04rem solid #173882;
  overflow: hidden;
}

.core-section .core-item img {
  width: 100%;
  height: 1.67rem;
}
.core-section .core-item img:hover {
  transform: scale(1.03);
  transition: all 0.5s ease-out;
}
.core-section .core-item .text-box {
  padding: 0.25rem;
  padding-top: 0.15rem;
}
.core-section .core-item .core-idx {
  font-family:
    Nimbus Sans,
    Nimbus Sans;
  font-weight: bold;
  font-size: 0.13rem;
  color: #2563eb;
  line-height: 0.17rem;
  margin-right: 0.05rem;
}
.core-section .core-item .core-title {
  font-family:
    Noto Sans SC,
    Noto Sans SC;
  font-weight: 900;
  font-size: 0.16rem;
  line-height: 0.19rem;
  color: #0f172a;
  min-height: 0.4rem;
}
.core-section .core-item .core-title-text {
  max-width: 2rem;
}
.core-section .core-item .core-desc {
  font-family: Roboto, Roboto;
  font-weight: 400;
  font-size: 0.09rem;
  color: #475569;
  margin: 0.13rem 0 0.17rem;
}
.core-section .core-item .more {
  display: inline-block;
  font-family:
    Noto Sans SC,
    Noto Sans SC;
  font-weight: bold;
  font-size: 0.08rem;
  color: #0a192f;
  line-height: 0.15rem;
  cursor: pointer;
}
.core-section .core-item .more:hover {
  transform: translateY(-0.01rem);
  transition: all 0.3s;
}
/* 产品介绍 */
.product-section {
  padding: 0.83rem 0.54rem;
  background: #f8fafc;
}

.product-section .product-list {
  gap: 0.25rem;
  margin-top: 0.5rem;
}
.product-section .product-item {
  padding-top: 0.29rem;
  background: #fff;
  box-shadow: 0rem 0.13rem 0.26rem -0.06rem rgba(0, 0, 0, 0.25);
  border-bottom: 0.04rem solid #173882;
  overflow: hidden;
}

.product-section .product-item img {
  width: 0.62rem;
  height: 0.62rem;
}
.product-section .product-item img:hover {
  transform: scale(1.03);
  transition: all 0.5s ease-out;
}
.product-section .product-item .text-box {
  padding: 0.25rem;
  text-align: center;
}

.product-section .product-item .product-title {
  font-family:
    Noto Sans SC,
    Noto Sans SC;
  font-weight: 900;
  font-size: 0.16rem;
  line-height: 0.19rem;
  color: #0f172a;
}
.product-section .product-item .product-desc {
  min-height: 0.9rem;
  font-family: Roboto, Roboto;
  font-weight: 400;
  font-size: 0.09rem;
  color: #475569;
  margin-top: 0.13rem;
  text-align: left;
}
.product-section .product-item .download {
  width: 0.77rem;
  height: 0.26rem;
  border: 0.01rem solid #000000;
  font-family:
    PingFang SC,
    PingFang SC;
  font-weight: 500;
  font-size: 0.08rem;
  color: #0a192f;
}
/* 未来愿景 */
.feature-section {
  position: relative;
  padding: 0.83rem 2rem;
  background: url(../images/index/ful-bg.png) no-repeat right center;
  background-size: 3.26rem 100%;
  background-position: right center;
  background-color: #0a0a0c;
}
.feature-section .cover {
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  background-color: rgba(21, 20, 63, 0.8);
}
.feature-section .feature-content {
  position: relative;
  z-index: 999;
  border: 0.01rem solid #6193e8;
  border-left-width: 0.04rem;
  padding: 0.34rem;
}
.feature-section .list .item:first-child {
  margin-right: 0.42rem;
}
.feature-section .list .title {
  font-family:
    Noto Sans SC,
    Noto Sans SC;
  font-weight: bold;
  font-size: 0.16rem;
  color: #ffffff;
  line-height: 0.19rem;
}
.feature-section .list .desc {
  width: 2.43rem;
  font-family:
    Noto Sans SC,
    Noto Sans SC;
  font-weight: 400;
  font-size: 0.1rem;
  color: #9ca3af;
  line-height: 0.17rem;
  margin: 0.12rem 0 0.34rem;
}
.feature-section .tags span {
  width: 0.75rem;
  height: 0.2rem;
  line-height: 0.2rem;
  border: 0.01rem solid #6193e8;
  font-family:
    PingFang SC,
    PingFang SC;
  font-weight: 500;
  font-size: 0.07rem;
  color: #6193e8;
  letter-spacing: 1px;
  text-align: center;
  margin-right: 0.13rem;
  cursor: pointer;
}
.feature-section .tags span:hover {
  box-shadow: 0 0 0.05rem 0.04em #6193e8;
}
/* 底部 */
.footer {
  /* height: 2.85rem; */
  padding: 0.5rem 0.56rem;
  background: #0f172a;
}
.footer .footer-left {
  max-width: 2.97rem;
  margin-right: 2.9rem;
}
.footer .footer-left img {
  width: 0.29rem;
  margin-right: 0.08rem;
}
.footer .footer-left .name {
  font-family:
    Noto Sans SC,
    Noto Sans SC;
  font-weight: 900;
  font-size: 0.16rem;
  color: #ffffff;
  line-height: 0.16rem;
}
.footer .footer-left .left-bottom {
  font-family:
    Noto Sans SC,
    Noto Sans SC;
  font-weight: 400;
  font-size: 0.09rem;
  color: #64748b;
  line-height: 0.15rem;
  margin-top: 0.17rem;
}
.footer .footer-right .title {
  font-family:
    Noto Sans SC,
    Noto Sans SC;
  font-weight: bold;
  font-size: 0.08rem;
  color: #ffffff;
  line-height: 0.13rem;
  letter-spacing: 3px;
}
.footer .footer-right .info.privacy {
  margin-top: 0.15rem;
  margin-left: 0.22rem;
  cursor: pointer;
}
.footer .footer-right .info.privacy span:hover {
  color: #3e79f8;
  border-bottom: 0.01rem solid #3e79f8;
}
.footer .footer-right .info.privacy span {
  display: inline-block;
  border-bottom: 0.01rem solid #94a3b8;
}
.footer .footer-right .info img {
  width: 0.13rem;
  height: 0.13rem;
  margin-right: 0.08rem;
}
.footer .footer-right .info span {
  display: inline-block;
  max-width: 1.14rem;
  font-family:
    Noto Sans SC,
    Noto Sans SC;
  font-weight: 400;
  font-size: 0.08rem;
  color: #94a3b8;
  line-height: 0.13rem;
}
.footer .footer-right .email-info {
  margin: 0.17rem 0 0.1rem;
}
.footer .line {
  width: 100%;
  height: 0;
  border-bottom: 0.01rem solid #1e293b;
  margin: 0.59rem 0 0.5rem;
}
.footer .copyright {
  text-align: center;
  font-family: Inter, Inter;
  font-weight: bold;
  font-size: 0.06rem;
  color: #475569;
  line-height: 0.08rem;
  letter-spacing: 3px;
}