/* 容器样式 */
.bg-container {
  background-color: #f4f5f7;
}

.container-bg {
  padding-top: 80px !important;
}

.container-mt {
  margin-top: 80px !important;
}

.container {
  width: 70%;
  max-width: 1488px;
  margin: 0 auto;
  padding: 0 20px;
}

.section-header {}

.main-title {
  font-weight: 800;
  font-size: 36px;
  color: #000000;
  text-align: center;
}

.sub-title {
  font-weight: 400;
  font-size: 20px;
  color: #313131;
  text-align: center;
}

.sub-content {
  margin-top: 64px;
  padding-bottom: 100px;
}

.mt-10 {
  margin-top: 10px;
}

.mt-14 {
  margin-top: 14px;
}

.mt-20 {
  margin-top: 20px;
}

.mt-40 {
  margin-top: 40px;
}

.font-title {
  font-size: 20px;
}

.font-content {
  font-size: 16px;
}

/* 研发中心介绍 */
.hero-section {
  position: relative;
  overflow: hidden;
  background: url("/static/tupian/banner.png") no-repeat right center;
   aspect-ratio: 24 / 7;
   background-size: 100% 100%;
  display: flex;
  align-items: flex-end;
  /*width: 100%;*/
  /*height: 400px;*/
  /*background-size: 100% auto;*/

}

.hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  position: relative;
  bottom: 59px;
  left: 11.9%;
}

.hero-left {
  flex: 1;
}

.banner-title {
  position: relative;
  display: inline-block;
  font-weight: 800;
  font-size: 36px;
  color: #000000;
}

.banner-subtitle {
  font-weight: 400;
  font-size: 24px;
  color: #000000;
}

.stats-container {
  width: 1077px;
  display: flex;
  font-family:
          MiSans TC,
          MiSans TC-Medium;
  margin-top: 50px;
}

.stats-container dl {
  width: 25%;
}

.line {
  width: 100%;
  height: 2px;
  background-color: rgba(255, 255, 255, 0.5);
  border-radius: 4px;
  display: none;
}

.line-content {
  width: 50%;
  height: 100%;
  background-color: #000;
}

.stat-item {
  text-align: left;
  position: relative;
  padding: 10px 0;
}

.stat-number {
  color: #000000;
}

.mark {
  font-weight: 500;
  font-size: 62px;
  margin-right: 10px;
  position: relative;
  color: #023B7E;
}

.stat-label {
  font-weight: 500;
  color: #000000;
}

.hero-right {
  flex: 1;
}

/* R&D演进之路 */
.evolution-timeline {
  display: flex;
  justify-content: space-between;
  gap: 31px;
}

.evolution-stage {
  flex: 1;
  background: #f9f9f9;
  border-radius: 8px;
  padding: 20px;
  transition: all 0.5s ease;
}

.evolution-stage:hover {
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.stage-image img {
  transition: all 0.5s ease;
}

.evolution-stage:hover .stage-image img {
  transform: scale(1.05);
}

.stage-image {
  /*width: 460px;*/
  height: 170px;
  border-radius: 11px;
  overflow: hidden;
}

.stage-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.stage-title {
  font-weight: bold;
  color: #000000;
}

.stage-description {
  font-weight: 400;
  color: #777777;
  line-height: 22px;
}

.stage-description p {
  position: relative;
}

.stage-description p::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 5px;
  background-color: rgba(119, 119, 119, 1);
  border-radius: 50%;
  margin-right: 5px;
  vertical-align: middle;
  position: absolute;
  top: 8px;
  left: -10px;
}

/* 研发产品&能力集 */
.products-section {
  background: url("/static/tupian/jiagou-bg.png") no-repeat center center;
  /* aspect-ratio: 1920 / 852; */
  background-size: 100% 100%;
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  /*margin-bottom: 100px;*/
  margin-top: 0 !important;
}

.jiagou-bg img {
  height: 100%;
  max-width: 100%;
  margin: 0 auto;
  display: block;
}

/* 联系我们 */
.contact-section {
  display: none;
  background: url("/static/tupian/jiashao.png") no-repeat center center;
  color: white;
  padding: 60px 0;
  text-align: center;
}

.contact-content h2 {
  font-weight: bold;
  font-size: 32px;
  color: #000000;
}

.contact-btn {
  width: 140px;
  height: 50px;
  margin-top: 35px;
  line-height: 50px;
  text-align: center;
  background: #202329;
  border-radius: 25px 25px 25px 25px;
  font-weight: 400;
  color: #ffffff;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
}

.contact-btn a {
  color: white;
}

.contact-btn:hover {
  cursor: pointer;
}

.is_show {
  display: none;
}

/* 视频弹窗样式 */
.video-dialog {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
}

.dialog-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
}

.dialog-content {
  position: relative;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 90%;
  max-width: 800px;
  background-color: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

.close-btn {
  position: absolute;
  top: 10px;
  right: 15px;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: #333;
  z-index: 10;
}

.close-btn:hover {
  color: #fff;
}

.video-container {
  width: 100%;
  height: 0;
  padding-bottom: 56.25%;
  position: relative;
}

.video-container video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/*********** 登录弹窗 (仿抖音风格) **********/
#loginModal {
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 8888;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
}

#loginModal .modal-content {
  max-width: 700px;
  padding: 0;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  min-height: 350px;
  margin: auto;
  display: grid;
  grid-template-columns: minmax(380px, 1.2fr) minmax(320px, 1fr);
}

#loginModal .modal-content .close {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 28px;
  color: #999;
  cursor: pointer;
  z-index: 10;
}

#loginModal .modal-content .close:hover {
  cursor: pointer;
  color: #fff;
}

.login-left {
  background: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  border-right: 1px solid #f0f0f0;
  width: 100%;
  height: 100%;
}

.login-left img {
  width: 100%;
  object-fit: fill;
  margin: 0;
  padding: 0;
  height: 100%;
}

.login-right {
  flex: 1;
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.login-right h3 {
  margin-bottom: 30px;
  font-size: 22px;
  color: #333;
  font-weight: bold;
  text-align: center;
}

.login-right .form-group {
  margin-bottom: 20px;
}

.form-group-box {
  display: flex;
  border-radius: 4px;
  overflow: hidden;
}

.form-control {
  padding: 10px 10px;
  outline: none;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 4px;
  width: 100%;
}

.login_box {
  display: flex;
  gap: 2rem;
}

.login_obn {
  width: 100%;
  padding: 10px 10px;
  background: #1164d5;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 16px;
  font-weight: bold;
}

.login_obn:hover {
  cursor: pointer;
  opacity: 0.85;
}

.login-proto {
  font-size: 12px;
  color: #999;
  text-align: center;
}

.qrcode-text {
  font-size: 14px;
}

.login_obn__cancel {}

/* 响应式设计 */
/* @media (max-width: 767px) {
  .hero-section {
    aspect-ratio: 24 / 8;
  }

  .container-bg {
    padding-top: 30px !important;
  }

  .container-mt {
    margin-top: 30px !important;
  }

  .container {
    width: 85%;
    max-width: none;
  }

  .main-title {
    font-weight: 500;
    font-size: 20px;
  }

  .sub-title {
    font-size: 16px;
  }

  .sub-content {
    margin-top: 20px;
  }

  .mt-10 {
    margin-top: 2.5px;
  }

  .mt-20 {
    margin-top: 5px;
  }

  .mt-40 {
    margin-top: 10px;
  }

  .font-title {
    font-size: 14px;
  }

  .font-content {
    font-size: 12px;
  }

  
  .banner-title {
    font-size: 20px;
  }

  .banner-subtitle {
    font-size: 16px;
  }

  .mark {
    font-size: 26px;
    margin-right: 2px;
  }

  .stats-container {
    gap: 10px;
  }

  .stat-number {
    min-width: 80px;
    padding-bottom: 5px;
  }

  .hero-content {
    bottom: 5%;
    left: 8.8%;
  }

  .mt-14 {
    margin-top: 5px;
  }


  .evolution-timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
    justify-items: center;
  }

  .evolution-stage {
    padding: 20px;
    transition: all 0.3s ease;
    width: 80%;
    flex: none;
  }

  .stage-image {
    width: auto;
  }

  .contact-section {
    padding: 40px 0;
  }

  .contact-content h2 {
    font-size: 24px;
  }

  .contact-btn {
    width: 115px;
    height: 30px;
    line-height: 30px;
    margin-top: 20px;
  }
}

@media (min-width: 768px) and (max-width: 1024px) {
  .hero-section {
    aspect-ratio: 24 / 8;
  }

  .container-bg {
    padding-top: 40px !important;
  }

  .container-mt {
    margin-top: 40px !important;
  }

  .container {
    width: 85%;
    max-width: none;
  }

  .main-title {
    font-weight: 500;
    font-size: 26px;
    color: #000000;
    text-align: center;
  }

  .sub-title {
    font-weight: 400;
    font-size: 20px;
    color: #313131;
    text-align: center;
  }

  .sub-content {
    margin-top: 40px;
  }

  .mt-10 {
    margin-top: 5px;
  }

  .mt-20 {
    margin-top: 10px;
  }

  .mt-40 {
    margin-top: 20px;
  }

  .font-title {
    font-size: 16px;
  }

  .font-content {
    font-size: 14px;
  }

  
  .banner-title {
    font-size: 26px;
  }

  .banner-subtitle {
    font-size: 20px;
  }

  .mark {
    font-size: 30px;
    margin-right: 4px;
  }

  .stats-container {
    gap: 10px;
  }

  .stat-number {
    min-width: 80px;
    padding-bottom: 5px;
  }

  .hero-content {
    bottom: 10%;
    left: 8.8%;
  }

  .mt-14 {
    margin-top: 8px;
  }

  
  .evolution-timeline {
    gap: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    justify-items: center;
  }

  .evolution-stage {
    padding: 20px;
    transition: all 0.3s ease;
    width: none;
    flex: none;
    max-width: 350px;
  }

  .stage-image {
    width: auto;
  }

 
  .contact-section {
    padding: 50px 0;
  }

  .contact-content h2 {
    font-size: 24px;
  }

  .contact-btn {
    width: 115px;
    height: 30px;
    line-height: 30px;
    margin-top: 20px;
  }
}

@media (min-width: 1025px) and (max-width: 1440px) {
  .hero-section {
    aspect-ratio: 24 / 8;
  }

  .container-bg {
    padding-top: 40px !important;
  }

  .container-mt {
    margin-top: 40px !important;
  }

  .container {
    width: 80%;
    max-width: none;
  }

  .main-title {
    font-weight: 500;
    font-size: 26px;
    color: #000000;
    text-align: center;
  }

  .sub-title {
    font-weight: 400;
    font-size: 20px;
    color: #313131;
    text-align: center;
  }

  .sub-content {
    margin-top: 40px;
  }

  .mt-10 {
    margin-top: 5px;
  }

  .mt-20 {
    margin-top: 10px;
  }

  .mt-40 {
    margin-top: 20px;
  }

  .font-title {
    font-size: 20px;
  }

  .font-content {
    font-size: 16px;
  }

 
  .banner-title {
    font-size: 30px;
  }

  .banner-subtitle {
    font-size: 24px;
  }

  .mark {
    font-size: 36px;
    margin-right: 4px;
  }

  .stats-container {
    gap: 15px;
  }

  .stat-number {
    min-width: 100px;
  }

  .hero-content {
    bottom: 15%;
    left: 12.5%;
  }

  .mt-14 {
    margin-top: 10px;
  }

  
  .evolution-timeline {
    gap: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    justify-items: center;
  }

  .evolution-stage {
    padding: 20px;
    transition: all 0.3s ease;
    flex: none;
  }

  .stage-image {
    width: auto;
  }

  .contact-content h2 {
    font-size: 26px;
  }

  .contact-btn {
    width: 115px;
    height: 30px;
    line-height: 30px;
    margin-top: 30px;
  }
}

@media (min-width: 1440px) and (max-width: 1600px) {
  .hero-content {
    bottom: 20px;
    left: 13%;
  }

  .mt-14 {
    margin-top: 10px;
  }
}

@media (min-width: 1440px) and (max-width: 1900px) {
  .container-bg {
    padding-top: 60px !important;
  }

  .container-mt {
    margin-top: 60px !important;
  }

  .container {
    width: 80%;
    max-width: auto;
  }

  .main-title {
    font-weight: 600;
    font-size: 30px;
    color: #000000;
    text-align: center;
  }

  .sub-title {
    font-weight: 400;
    font-size: 20px;
    color: #313131;
    text-align: center;
  }

  .sub-content {
    margin-top: 50px;
  }

  .mt-10 {
    margin-top: 8px;
  }

  .mt-20 {
    margin-top: 15px;
  }

  .mt-40 {
    margin-top: 30px;
  }

  .nav-links li {
    padding: 0 20px;
  }

  .nav-slider {
    bottom: -25px;
  }

  .stage-image {
    width: auto;
  }

  .font-title {
    font-size: 18px;
  }

  .font-content {
    font-size: 15px;
  }
}

@media (min-width: 2560px) and (max-width: 3839px) {
  .hero-section {
    background: url(/static/tupian/banner.png) no-repeat right center;
    aspect-ratio: 51 / 15;
    background-size: 100% 100%;
  }

  .container-bg {
    padding-top: 70px !important;
  }

  .container-mt {
    margin-top: 70px !important;
  }

  .container {
    width: 75%;
    max-width: none;
  }

  .main-title {
    font-weight: 800;
    font-size: 40px;
  }

  .sub-title {
    font-size: 30px;
  }

  .sub-content {
    margin-top: 50px;
  }

  .mt-10 {
    margin-top: 15px;
  }

  .mt-20 {
    margin-top: 30px;
  }

  .mt-40 {
    margin-top: 60px;
  }

  .font-title {
    font-size: 24px;
  }

  .font-content {
    font-size: 20px;
  }

  .banner-title {
    font-size: 40px;
  }

  .banner-subtitle {
    font-size: 30px;
  }

  .mark {
    font-size: 62px;
    margin-right: 10px;
  }

  .stats-container {
    gap: 15px;
  }

  .stat-number {
    min-width: 100px;
  }

  .hero-content {
    bottom: 198px;
    left: 10.4%;
  }

  .mt-14 {
    margin-top: 20px;
  }

  .stage-description p::before {
    top: 14px;
  }

  .stage-description {
    line-height: 32px;
  }

  .contact-section {
    padding: 90px 0;
  }
} */

/* 产品介绍模块容器 */
.product-intro-section {
  margin-top: 31px;
  width: 100%;
  height: 280px;
  /* 根据图片比例设置高度 */
  background: url(/static/images/home/bottom_bg.png) center center / cover no-repeat;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;

}

/* 主文字 */
.intro-text {
  color: #000000;
  font-size: 20px;
  font-weight: bold;
  padding: 4px 8px;
  /*border: 1px solid #ff3366;*/
}

/* 了解更多按钮 */
.learn-more-btn {
  position: absolute;
  bottom: 20%;
  left: 50%;
  left: 50%;
  transform: translateX(-50%);
  background-color: #334466;
  color: #fff;
  border: none;
  padding: 8px 20px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  width: 139px;
  height: 49px;
  background: #202329;
  border-radius: 25px 25px 25px 25px;
}