/* ====== 基础与重置样式 ====== */
 * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  /* ====== 外层背景容器 ====== */
  /* 使用伪元素还原原版中上半部分深蓝、下半部分亮蓝的背景效果 */
  .cs2-wrapper {
    position: relative;
    width: 100%;
    min-height: 100vh;
    background-color: #0026CB; /* 底部亮蓝色 */
    font-family: "Microsoft YaHei", "微软雅黑", sans-serif;
    overflow-x: hidden;
  }
  .cs2-wrapper::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 500px;
    background-color: #001880; /* 顶部深蓝色 */
    z-index: 0;
  }

  /* ====== 核心排版容器 ====== */
  .cs2-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
    padding: 110px 40px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 80px;
  }

  /* ====== 左侧：信息展示区 ====== */
  .cs2-info-col {
    flex: 1;
    max-width: 650px;
    display: flex;
    flex-direction: column;
    color: #FFF;
  }
  .cs2-title {
    font-size: 36px;
    font-weight: 400;
    margin-bottom: 70px;
    letter-spacing: 0;
  }
  .cs2-desc {
    font-size: 24px;
    line-height: 42px;
    font-weight: 400;
    margin-bottom: 150px; /* 还原设计稿中文字与数据指标间的大片留白 */
    white-space: pre-wrap;
  }
  .cs2-stats-row {
    display: flex;
    gap: 120px;
    margin-bottom: 120px;
    padding-top: 80px;
  }
  .cs2-stat-item {
    display: flex;
    flex-direction: column;
  }
  .cs2-stat-num {
    font-size: 48px;
    font-weight: 400;
    line-height: 1.2;
    display: flex;
    align-items: center;
  }
  .cs2-stat-num span {
    margin-left: 2px;
  }
  .cs2-stat-label {
    font-size: 18px;
    margin-top: 5px;
  }
  .cs2-logos-img {
    width: 100%;
    max-width: 588px;
    height: auto;
    object-fit: contain;
  }

 

  /* ====== 移动端及响应式适配 ====== */
  @media (max-width: 1100px) {
    .cs2-container {
      flex-direction: column;
      align-items: center;
      padding: 80px 20px;
    }
    .cs2-info-col {
      max-width: 100%;
      text-align: center;
      margin-bottom: 60px;
      align-items: center;
    }
    .cs2-desc {
      margin-bottom: 80px;
    }
    .cs2-stats-row {
      justify-content: center;
      gap: 80px;
    }
    /* 在移动端使得深蓝色背景铺满全屏，或根据内容自动延展 */
    .cs2-wrapper::before {
      height: 100%;
      background: linear-gradient(to bottom, #001880 0%, #0026CB 100%);
    }
  }

  @media (max-width: 600px) {
    .cs2-title { font-size: 28px; margin-bottom: 40px; }
    .cs2-desc { font-size: 18px; line-height: 32px; margin-bottom: 0px; }
    .cs2-stats-row { flex-direction: column; gap: 40px; margin-bottom: 80px; }
    .cs2-stat-num { font-size: 40px; justify-content: center; }
    .cs2-form-col { padding: 30px 20px; border-radius: 20px; }
    .cs2-submit-btn { width: 100%; }
  }