* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.6;
        }
        
        .bigtop {
            height: 100vh;
            position: relative;
            overflow: hidden;
        }
        
        /* 轮播图容器样式 */
        /* .carousel-container {
            width: 100%;
            height: auto;
            position: absolute;
            top: 0;
            left: 0;
            z-index: 1;
        }
        
        .carousel-slides {
            display: flex;
            width: 100%;
            height: 100%;
            transition: transform 0.5s ease-in-out;
        }
        
        .carousel-slide {
            min-width: 100%;
            height: 100%;
            position: relative;
        }
        .luntitet{
            position: absolute;
            top: 50%;
            left: 30%;
            color: #000000;
            transform: translate(-50%, -50%);
            font-size: 24px;
        }
        .luntitet h2{
            font-size: 48px;
            margin-bottom: 20px;
            font-weight: bold;
        }
        .carousel-slide img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
     
        .carousel-controls {
            display: none;
        } */
        
      /* 指示器容器样式 */
/* .carousel-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 15px;
    z-index: 10;
    border-radius: 30px;
    background-color: rgba(0, 0, 0, 0.3);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94); 
    height: 20px;
    padding: 0 20px; 
    overflow: hidden;
} */

/* 鼠标悬停时显示控制按钮 */
/* .carousel-indicators:hover {
    height: 56px; 
    padding: 10px 15px;
}

.carousel-indicators:hover .carousel-control {
  display: block;
    opacity: 1;
    visibility: visible;
    transform: scale(1); 
} */

/* 控制按钮样式 */
/* .carousel-control {
  display: none;
    background: none;
    border: none;
    font-size: 40px;
    height: 40px;
    width: 40px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease 0.1s;
    color: #fff;
    opacity: 0;
    visibility: hidden;
    transform: scale(0.8);
}

.carousel-control:hover {
    transform: scale(1.1);
    background: #0084ff;
}
        
        .carousel-indicator {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.6);
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        
        .carousel-indicator:hover {
            transform: scale(1.3);
            background-color: rgba(255, 255, 255, 0.9);
        } */
        
        /* 当前激活的指示器变为进度条 */
        /* .carousel-indicator.active {
            width: 40px;
            height: 6px;
            border-radius: 3px;
            background-color: rgba(255, 255, 255, 0.3);
        } */
        
        /* 真实进度条元素 */
        /* .indicator-progress {
            position: absolute;
            top: 0;
            left: 0;
            height: 100%;
            width: 0;
            background-color: #fff;
            border-radius: 3px;
            display: none;
        }
         */
        /* 激活状态：显示进度条 */
        /* .carousel-indicator.active .indicator-progress {
            display: block;
            animation: progress 3s linear forwards;
        }
         */
        /* 进度条动画关键帧 */
        /* @keyframes progress {
            to {
                width: 100%;
            }
        } */
        
      .about-section {
        display: flex;
        align-items: center;
        justify-content: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 50px 20px;

}

.about-section h2 {
  font-size: 28px;
  margin-bottom: 30px;
}

.content-wrapper {
  display: flex;
  flex-direction: column;
  float: left;
}

.logo {
  width: 150px;
  height: auto;
  margin-bottom: 20px;
  z-index: 0;
}

.description {
  font-size: 20px;
  margin-bottom: 30px;
  max-width: 800px;
}

.learn-more {
  width: 150px;
  padding: 10px 20px;
  background-color: #0066cc;
  color: #fff;
  border: none;
  border-radius: 20px;
  cursor: pointer;
  font-size: 16px;
}

.learn-more:hover {
  background-color: #004c99;
}

/* 统一的淡入动画类*/
.fade-in-element {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.fade-in-element.active {
    opacity: 1;
    transform: translateY(0);
}


/* 轮播容器整体样式 */
.modules-section {
    position: relative; 
    width: 100%;
    overflow: hidden; 
    padding: 20px 0;
    height: auto; 
}


.carousel-container {
    display: flex; 
    width: 100%; 
    transition: transform 0.5s ease; 
    gap: 25px;
}
/* 轮播卡片 */
/* 核心：单张卡片占50%宽度，两张刚好沾满屏幕 */
/* .module-card {
    flex: 0 0 48%;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 15px;
    padding: 25px 25px; 
    background-image: url(../images/cpbg.png);
    background-size: cover; 
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}


.module-card.active {
    opacity: 1;
    transform: translateY(0);
}


.module-title {
    font-size: 28px;
    color: #475569;
    margin: 0;
}

.module-name {
    font-size: 34px;
    color: #475569;
    margin: 0;
    line-height: 1.2;
}


.module-desc {
    font-size: 20px;
    color: #475569;
    margin: 0;
    line-height: 1.5;
}


.module-img {
    max-width: 80%; 
    height: auto;
    border-radius: 4px;
    transition: transform 0.5s ease;
}

.module-img:hover {
    transform: scale(1.03);
}


.learn-more {
    margin-top: 10px;
    padding: 12px 24px;
    background-color: #0066cc;
    color: #fff;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.3s ease;
}

.learn-more:hover {
    background-color: #004c99;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}


.carousel-control {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.9);
    border: none;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10; 
    transition: all 0.3s ease;
}

.carousel-control.prev {
    left: 15px; 
}

.carousel-control.next {
    right: 15px; 
}

.carousel-control:hover {
    background-color: #fff;
    transform: translateY(-50%) scale(1.1); 
}


.carousel-indicators {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: #ccc;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    background-color: #0066cc;
    transform: scale(1.3); 
} */
.modules-section {
    display: flex;
    justify-content: space-around;
   gap: 20px;
   height: auto;
}



        .module-card.active {
            opacity: 1;
            transform: translateY(0);
        }

        .module-title {
            font-size: 30px;
            color: #475569;
        }

        .module-name {
            font-size: 40px;
            color: #475569;
        }

        .module-desc {
            font-size: 24px;
            color: #475569;
        }

        .module-img {
            max-width: 100%;
            height: auto;
            border-radius: 4px;
            transition: transform 0.5s ease;
        }

        .module-img:hover {
            transform: scale(1.03);
        }

        .learn-more {
          margin-top: 10px;
            padding: 12px 24px;
            background-color: #0066cc;
            color: #fff;
            border: none;
            border-radius: 20px;
            cursor: pointer;
            font-size: 16px;
            transition: all 0.3s ease;
        }

        .learn-more:hover {
            background-color: #004c99;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        }

       .fapplication-section {
      padding: 80px 20px;
      background-image: url(../images/lunboubg.png);
    }

    .fsection-title {
      text-align: center;
      font-size: 32px;
      margin-bottom: 50px;
      color: #fff;
    }

    /* 轮播容器 */
    .fcarousel-wrapper {
     width: 80%;
      margin: 0 auto;
      overflow: hidden;
      position: relative;
    }

    .fcarousel-container {
      display: flex;
      transition: transform 0.5s ease-in-out;
    }

    /* 轮播项*/
    .fcarousel-item {
      min-width: calc(100% / 3);
      padding: 0 15px;
      box-sizing: border-box;
    }

    .fcarousel-content {
      box-shadow: 0 5px 15px rgba(0,0,0,0.1);
      height: 100%;

    }


    /* 图片容器 */
    .fcarousel-img-container {
      position: relative;
      width: 100%;
    }

    .fcarousel-img {
      width: 100%;
      height: auto;
    }

    /* 内容叠加在图片中间 */
    .fcarousel-info {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 90%;
      text-align: center;
      color: white;
      padding: 20px;
      border-radius: 8px;
    }

    .fcarousel-title {
      font-size: 22px;
      margin-bottom: 15px;
      text-shadow: 0 2px 4px rgba(0,0,0,0.3);
    }

    .fcarousel-desc {
      margin-bottom: 20px;
      line-height: 1.6;
      background-color: rgba(0, 0, 0, 0.5);
      border-radius: 30px;
      padding: 10px;
    }

    .fcarousel-btn {
      display: inline-block;
      padding: 10px 20px;
     background-color: rgba(0, 0, 0, 0.5);
     border-radius: 20px;
      text-decoration: none;
      font-weight: 500;
      transition: all 0.3s;
    }

    .fcarousel-btn:hover {
      transform: translateY(-2px);
    }

    .fcarousel-controls {
      position: absolute;
      top: 50%;
      width: 100%;
      display: flex;
      justify-content: space-between;
      transform: translateY(-50%);
      z-index: 10;
      padding: 0 10px;
    }

    .fcontrol-btn {
      width: 45px;
      height: 45px;
      border-radius: 50%;
      background-color: rgba(255, 255, 255, 0.9);
      border: none;
      box-shadow: 0 2px 10px rgba(0,0,0,0.2);
      cursor: pointer;
      font-size: 18px;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: all 0.3s ease;
    }

    .fcontrol-btn:hover {
      background-color: white;
      transform: scale(1.1);
    }

    /* 指示器 */
    .fcarousel-indicators {
      display: flex;
      justify-content: center;
      margin-top: 40px;
      gap: 10px;
    }

    .findicator {
      width: 12px;
      height: 12px;
      border-radius: 50%;
      background-color: #fff;
      border: none;
      cursor: pointer;
      transition: all 0.3s ease;
    }

    .findicator.active {
      background-color: #0084ff;
      transform: scale(1.3);
    }

    /* 视口进入动画 */
    .ffade-in-element {
      opacity: 0;
      transform: translateY(30px);
      transition: opacity 0.8s ease, transform 0.8s ease;
    }

    .ffade-in-element.active {
      opacity: 1;
      transform: translateY(0);
    }


    @media (max-width: 992px) {
      .fcarousel-item {
        min-width: 50%; 
      }
    }

    @media (max-width: 768px) {
      .fcarousel-item {
        min-width: 100%; 
      }
      
      .fsection-title {
        font-size: 26px;
      }
      
      .fcontrol-btn {
        width: 38px;
        height: 38px;
      }

      .fcarousel-img-container {
        height: 300px;
      }
    }



    .fpartner-section {
  padding: 50px 20px;
  background-color: #fff;
  text-align: center;
}

.fsection-title {
  font-size: 32px;
  margin-bottom: 40px;
  color: #333;
}

.fpartner-container {
  max-width: 1366px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  background-color: #f0f0f0;
}

.fpartner-item {
  padding: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 8px;
}

.fpartner-item img {
  max-width: 100%;
  height: auto;
}

.fade-in-element {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 1s ease, transform 1s ease;
}

.fade-in-element.active {
  opacity: 1;
  transform: translateY(0);
}


@media (max-width: 768px) {
  .fsection-title {
    font-size: 24px;
  }

  .fpartner-container {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .fpartner-container {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 1366px) {
 .fpartner-container{
  max-width: 1200px;
 }
   .module-img {
            height: auto;
            border-radius: 4px;
            transition: transform 0.5s ease;
        }
 .module-name {
            font-size: 30px;
            color: #475569;
        }
  .module-title {
            font-size: 25px;
            color: #475569;
        }
}
   .module-card {
  display: flex;
  flex-direction: column;
   align-items: center;
    text-align: center;
    gap: 20px;
    padding: 30px;
    background-image: url(../images/cpbg.png);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    width: 50%;
   margin-bottom: 10px;
}
.fconcept-section {
  padding: 50px 20px;
  position: absolute;
  top: 50%;
  left: 30%;
  transform: translate(-50%, -50%);
}

.fmain-title {
  font-size: 60px;
  font-weight: bold;
  margin-bottom: 20px;
  line-height: 1.2;
}


.fsub-title {
  font-size: 40px;
  margin-bottom: 10px;
}

.fdesc {
  font-size: 40px;
  margin-bottom: 30px;
}

.fdivider {
  width: 100px;
  height: 2px;
  background-color: #000;

}

@media (max-width: 768px) {
  .fmain-title {
    font-size: 36px;
  }
  .fsub-title {
    font-size: 20px;
  }
  .fdesc {
    font-size: 18px;
  }
}

@media (max-width: 480px) {
  .fmain-title {
    font-size: 28px;
  }
  .fsub-title {
    font-size: 18px;
  }
  .fdesc {
    font-size: 16px;
  }
}


@media (max-width: 768px) {
  .modules-section {
    height: auto;
    padding: 30px 15px; 
    gap: 40px; 
  }

  .module-card {
    width: 100%; 
    padding: 20px 15px; 
    gap: 15px; 
  }

  .module-title {
    font-size: 22px;
  }

  .module-name {
    font-size: 26px; 
    line-height: 1.3; 
  }

  .module-desc {
    font-size: 18px;
    line-height: 1.5;
  }

  .module-img {
    max-width: 180px; 
  }

  .learn-more {
    padding: 10px 20px; 
    font-size: 14px; 
  }
 
}


@media (max-width: 768px) {
  .fapplication-section {
    padding: 50px 15px; 
  }

  .fcarousel-wrapper {
    width: 95%; 
  }

  .fcarousel-item {
    min-width: 100%; 
    padding: 0 8px; 
  }

  .fcarousel-img-container {
    height: 220px;
    overflow: hidden;
  }

  .fcarousel-img {
    height: 100%;
    object-fit: cover; 
  }

  .fcarousel-info {
    padding: 12px 8px;
    width: 95%; 
  }

  .fcarousel-title {
    font-size: 18px; 
    margin-bottom: 8px;
  }

  .fcarousel-desc {
    font-size: 13px;
    padding: 6px 10px;
    margin-bottom: 12px;
  }

  .fcarousel-btn {
    padding: 8px 16px; 
    font-size: 13px;
  }

  .fcarousel-indicators {
    margin-top: 25px;
    gap: 8px; 
  }

  .findicator {
    width: 10px; 
    height: 10px;
  }

  
 

  .fcontrol-btn {
    width: 34px;
    height: 34px;
    font-size: 16px; 
  }
}


@media (max-width: 480px) {
  .module-img {
    max-width: 150px; 
  }

  .module-name {
    font-size: 24px;
  }

  .fcarousel-img-container {
    height: 180px; 
  }

  .fsection-title {
    font-size: 22px; 
  }
}


@media (max-width: 374px) {
     .bigtop{
    height: 600px;
   }
    .about-section {
        padding: 30px 15px; /* 减少内边距 */
        flex-direction: column; /* 垂直排列内容 */
        text-align: center; /* 居中对齐 */
    }

    .content-wrapper {
        float: none; /* 取消浮动 */
        align-items: center; /* 子元素居中 */
        width: 100%; /* 占满屏幕 */
    }

    .about-section h2 {
        font-size: 22px; /* 缩小标题 */
        margin-bottom: 20px;
    }

    .logo {
        width: 200px; /* 缩小logo */
        margin-bottom: 15px;
    }

    .description {
        font-size: 15px; /* 缩小描述文本 */
        margin-bottom: 20px;
        max-width: 100%; /* 占满容器 */
        line-height: 1.5; /* 优化行高 */
    }

    .learn-more {
        width: 130px; /* 缩小按钮 */
        padding: 8px 16px;
        font-size: 14px;
    }
}


@media (min-width: 375px) and (max-width: 413px) {
   .bigtop{
    height: 600px;
   }
  .about-section {
        padding: 40px 20px;
        flex-direction: column;
        text-align: center;
    }

    .content-wrapper {
        float: none;
        align-items: center;
        width: 100%;
    }

    .about-section h2 {
        font-size: 24px;
        margin-bottom: 25px;
    }

    .logo {
        width: 200px;
        margin-bottom: 18px;
    }

    .description {
        font-size: 16px;
        margin-bottom: 25px;
        max-width: 100%;
        line-height: 1.6;
    }

    .learn-more {
        width: 140px;
        padding: 9px 18px;
        font-size: 15px;
    }
}


@media (min-width: 414px) and (max-width: 767px) {
   .about-section {
        padding: 45px 20px;
        flex-direction: column;
        text-align: center;
    }

    .content-wrapper {
        float: none;
        align-items: center;
        width: 100%;
        max-width: 500px; 
        margin: 0 auto; 
    }

    .about-section h2 {
        font-size: 26px;
        margin-bottom: 28px;
    }

    .logo {
        width: 200px;
        margin-bottom: 20px;
    }

    .description {
        font-size: 17px;
        margin-bottom: 28px;
        max-width: 100%;
        line-height: 1.6;
    }

    .learn-more {
        width: 150px;
        padding: 10px 20px;
        font-size: 16px;
    }
}


@media (min-width: 768px) and (max-width: 1023px) {
   .bigtop{
    height: 600px;
   }
    .about-section {
        padding: 50px 30px;
          flex-direction: column;
        text-align: center;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .content-wrapper {
        float: none; 
        width: 100%;
        max-width: 700px; 
    }

    .about-section h2 {
        font-size: 27px;
        margin-bottom: 30px;
    }

    .logo {
        width: 200px;
        margin-bottom: 20px;
         margin-right: 1px;
    }
    .description {
        font-size: 18px;
        margin-bottom: 30px;
        max-width: 700px;
        line-height: 1.7;
    }
.learn-more {
    margin: 10px auto;
   
}
}
@media (max-width: 1023px) {
    .modules-section {
        flex-direction: column;
        align-items: center;
    }
     .module-card {
      width: 100%;
}
}