/* 基础样式重置 */
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
  @font-face {
  font-family: 'Montserrat-Regular'; /* 自定义名称，唯一标识 */
  src: url('/img/css/Montserrat-Regular.otf') format('opentype'); /* 路径指向otf文件，格式声明为opentype */
  font-weight: normal; /* 根据字体实际属性设置（常规/粗体等） */
  font-style: normal; /* 常规/斜体等 */
}

/* 定义第二个otf字体 */
@font-face {
  font-family: 'Montserrat-ExtraBold'; /* 另一个唯一名称 */
  src: url('/img/css/Montserrat-ExtraBold.otf') format('opentype'); /* 指向第二个otf文件 */
  font-weight: bold; /* 假设第二个字体是粗体 */
  font-style: normal;
}
    
    body {
      font-family: 'Montserrat-Regular', Tahoma, Geneva, Verdana, sans-serif;
      line-height: 1.65;
      color: #333;
      overflow-x: hidden;
    }
    
    
    a {
      font-family: 'Montserrat-Regular', Tahoma, Geneva, Verdana, sans-serif;
      text-decoration: none;
      color: inherit;
    }
    
    ul {
      list-style: none;
    }
    
    img {
      max-width: 100%;
      display: block;
    }
    
    .container {
      width: 100%;
      max-width: 1560px;
      margin: 0 auto;
      padding: 0 20px;
    }
    
    /* 按钮样式 */
    .learn-more {
        font-family: 'Montserrat-Extrabold';
      FONT-SIZE: 20px;
      display: inline-block;
      background: #769d70;
      border-radius: 16px;
      color: white;
      padding: 20px 20px;
      font-weight: 500;
      transition: background 0.3s;
      border: none;
      cursor: pointer;
    }
    
    .learn-more:hover {
      background: #769D70;
    }
    
   
    /* 轮播图样式 */
    .carousel {
      position: relative;
      height: calc(100vh - 80px);
      overflow: hidden;
    }
    
    .carousel-slide {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      opacity: 0;
      transition: opacity 0.5s ease;
    }
    
    .carousel-slide.active {
      opacity: 1;
    }
    
    .carousel-slide img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    
    .carousel-controls {
      position: absolute;
      bottom: 30px;
      left: 50%;
      transform: translateX(-50%);
      display: flex;
      gap: 10px;
    }
    
    .carousel-indicator {
      width: 12px;
      height: 12px;
      background: rgba(255,255,255,0.5);
      border: none;
      cursor: pointer;
    }
    
    .carousel-indicator.active {
      background: white;
    }
    
    /* 通用板块样式 */
    .section {
      padding: 80px 0;
    }
    
    .section-title {
      font-family: 'Montserrat-Extrabold';
      text-transform: uppercase;
      font-size: 2rem;
      margin-bottom: 40px;
      text-align: center;
      color: #2c3e50;
    }
    
 /* 服务板块容器 */
    .services-section {
      padding: 80px 20px;
      background-color: #f9fafb;
      text-align: center;
    }

    /* 标题样式 */
    .services-title {
            font-family: 'Montserrat-Extrabold';
      position: relative;
      font-size: 2rem;
      font-weight: 700;
      color: #1C1C1C;
      margin-bottom: 60px;
      display: inline-block;
          text-transform: uppercase;
      border-bottom: 5px solid #60895A;
          
    }

    

    /* 服务卡片容器 */
    .services-container {
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 30px;
      max-width: 1600px;
      margin: 0 auto;
    }

    /* 服务卡片样式 */
    .service-card {
      background-color: #fff;
      width: calc(20% - 24px);
      min-width: 200px;
      padding: 30px 20px;
      border-radius: 30px;
      box-shadow: inset 0 2px 10px 2px #33333357;
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
    }

    /* 卡片悬停效果 */
    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: inset 0 2px 15px rgba(0, 0, 0, 0.1), 0 10px 20px rgba(0, 0, 0, 0.05);
    }

    /* 图标样式 */
    .service-icon {
      margin: 45px;
      max-width: 100px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    /* 卡片标题 */
    .service-title {
      font-family: 'Montserrat-Extrabold';
      font-size: 18px;
      font-weight: 600;
      color: #1C1C1C;
      margin-bottom: 5px;
      letter-spacing: -0.03em;
    }

    /* 卡片描述 */
    .service-desc {
      font-size: 0.95rem;
      color: #1C1C1C;
      line-height: 1.65;
      letter-spacing: -0.03em;
    }

    /* 响应式调整 */
    @media (max-width: 1024px) {
      .service-card {
        width: calc(33.333% - 20px);
      }
    }

    @media (max-width: 768px) {
      .service-card {
        width: calc(50% - 15px);
      }
      
      .services-title {
        font-size: 2rem;
      }
    }

    @media (max-width: 480px) {
      .service-card {
        width: 100%;
      }
    }
    /* About Us 带视频板块 */
    .about-video {
      background-color: #f9f9f9;
      box-shadow: inset 0px 5px 4px 2px rgba(0, 0, 0, 0.15);
    }
    
    .about-video-container {
        MARGIN: auto;
            MAX-WIDTH: 1280px;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 40px;
    }
    
    .video-wrapper {
  position: relative; /* 容器设为相对定位，作为子元素的定位基准 */
  padding-top: 56.25%; /* 16:9 比例 */
  width: 100%;
  /* 移除背景色，避免显示空白 */
  background-color: transparent;
  overflow: hidden;
}

/* 封面容器：绝对定位，覆盖整个视频区域 */
.video-placeholder {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%; /* 与视频容器等高 */
  cursor: pointer;
  z-index: 2; /* 封面层级高于视频，确保初始可见 */
  background-color: #f0f0f0; /* 封面图加载前显示浅灰色 */
}

.video-thumbnail {
  width: 100%;
  height: 100%;
  object-fit: cover; /* 封面图铺满容器 */
}

/* 视频元素：绝对定位，与封面重叠 */
#aboutVideo {
  position: absolute; /* 关键：让视频与封面在同一位置 */
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: none; /* 默认隐藏视频 */
  z-index: 1; /* 视频层级低于封面，初始不显示 */
}

/* 点击后隐藏封面（完全移除，不是变白色） */
.video-placeholder.hidden {
  display: none !important; /* 彻底隐藏封面容器，不是仅变背景 */
}
.play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background-color: #769D70;
  color: white;
  border: none;
  font-size: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  padding-left: 5px; /* 修正播放图标居中 */
}

.play-button:hover {
  background-color: #60895A;
  transform: translate(-50%, -50%) scale(1.1);
}

/* 点击后隐藏封面和播放按钮 */
.video-placeholder.hidden {
  display: none;
}

    .about-content {
      position: relative;
      PADDING-TOP: 30px;
    }
    
     .about-content H3{
    font-family: 'Montserrat-Extrabold';
      font-size: 1.3rem;
      color: #1C1C1C;
      margin-bottom: 5px;
      letter-spacing: -0.03em;
    }
    .about-content p{
        line-height:1.65;
      letter-spacing: -0.03em;
          font-size: 1.2rem;
          padding-bottom: 40px;
    }
    .about-content .learn-more {
      position: absolute;
    }
    /* aboutus */
.fixed-bg-section {
  position: relative;
  padding: 150px 0;
  background-image: url('/img/group.webp');
  background-attachment: fixed; /* 背景固定不滚动 */
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  color: white;
  text-align: center;
}

/* 半透明覆盖层，增强文字可读性 */
.fixed-bg-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(44, 62, 80, 0.7); /* 深色半透明覆盖 */
}

.fixed-bg-content {
  position: relative; /* 确保内容在覆盖层上方 */
  z-index: 2;
  background: rgb(218 218 218 / 30%);
  backdrop-filter: blur(8px);
  padding: 30px;
  MAX-WIDTH: 1280px;
  border-radius: 16px;
}

.fixed-bg-section h2 {
  font-size: 2rem;
  margin-bottom: 30px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.fixed-bg-section p {
  font-size: 18px;
  line-height: 1.8;
  margin-bottom: 40px;
}

/* 按钮样式调整，适应深色背景 */
.fixed-bg-btn {
  background-color: white;
  color: #2c3e50;
}

.fixed-bg-btn:hover {
  background-color: #f1f1f1;
  color: #3498db;
}

/* 响应式调整 */
@media (max-width: 768px) {
  .fixed-bg-section {
    padding: 100px 0;
    background-attachment: scroll; /* 移动设备上改为滚动，避免兼容性问题 */
  }
  
  .fixed-bg-section h2 {
    font-size: 28px;
  }
  
  .fixed-bg-section p {
    font-size: 16px;
  }
}
    .card-container {
      width: 100%;
      margin: 0 auto;
      padding: 80px 0; 
    }

    /* 标题区域（统一显示） */
    .title-section {
      text-align: center;
      margin-bottom: 2rem;
    }
    .main-title {
      font-family: 'Montserrat-ExtraBold';
      font-size: clamp(1.8rem, 4vw, 2.5rem);
      font-weight: bold;
      color: #1C1C1C;
    }
    .title-desc {
      font-family: 'Montserrat-Regular';\
      font-size: 1.25rem;
      color: #1C1C1C;
      font-size: 1rem;
    }

    /* 卡片容器（核心：统一布局规则） */
    .cards {
      display: flex;
      align-items: center;
      width: 100%;
      align-items: stretch; 
      gap: 0.8rem; /* 固定间距，所有屏幕一致 */
    }

    /* 所有卡片统一尺寸和基础样式 */
    .card {
      flex-shrink: 0; /* 禁止压缩，确保尺寸一致 */
      width: calc((100% - 4 * 0.8rem) / 5); /* 固定宽度计算方式，所有屏幕通用 */
      transition: all 0.3s ease; 
    }

    /* 绿色色块样式（统一显示，无位移） */
    .card.block {
      background: #769D70;
    }
    .block.left {
      border-top-right-radius: 20pt;
      border-bottom-right-radius: 20pt;
    }
    .block.right {
      border-top-left-radius: 20pt;
      border-bottom-left-radius: 20pt;
    }

    /* 图片卡片样式（统一圆角和显示） */
    .card.img {
      border-radius: 20pt;
      overflow: hidden;
    }
    .card.img:hover {
      transform: translateY(-5px) scale(1.03); /* 上移+放大 */
      box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15); /* 加深阴影，增强立体感 */
    }
    .card.img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
     .card.img:hover img {
      transform: scale(1.05); /* 图片轻微放大，增强细节感 */
    }

   /* 创始人笔记板块 */
.founders-notes {
  background-color: #dcdcdc;
  padding: 80px 0;
}

.notes-container {
  margin: auto;
  MAX-WIDTH: 850PX;
}

.note-card {
  margin: 10px;
    background: white;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    border-radius: 16px;
    transition: all 0.3s ease; 
}
.note-card:hover {
      transform: translateY(-5px) scale(1.03); /* 上移+放大 */
      box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15); /* 加深阴影，增强立体感 */
    }

.note-content {
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.founder-avatar {
  flex: 0 0 80px; /* 固定头像宽度 */
  height: 80px;
  border-radius: 50%; /* 圆形头像 */
  overflow: hidden;
  border: 3px solid #f0f0f0;
}

.founder-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.note-text p {
  font-size: 16px;
  line-height: 1.8;
  font-style: italic; /* 斜体突出引用感 */
  color: #555;
  margin-bottom: 15px;
}

.note-author {
  font-weight: bold;
  color: #2c3e50;
  font-size: 15px;
}

/* 响应式调整 */
@media (max-width: 768px) {
  .note-content {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  
  .note-text p {
    font-size: 15px;
  }
}