:root {
    --primary: #0066cc;
    --gray: #f7f8fa;
    --dark: #222;
  }
  
  body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
                 Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--dark);
    background: #fff;
  }
  
  .container {
    width: 100%;              /* ✅ 默认占满 */
    max-width: 1200px;        /* ✅ 最大不超过 1200 */
    margin: 0 auto;           /* ✅ 居中 */
    padding: 0 15px;          /* ✅ 左右留呼吸感 */
    box-sizing: border-box;   /* ✅ 防止 padding 撑爆 */
  }
  
  .section {
    padding: 80px 0;
  }
  
  .section-title {
    text-align: center;
    margin-bottom: 50px;
  }
  
  .section-title h2 {
    font-size: 32px;
    margin-bottom: 10px;
  }
  
  .section-title p {
    color: #777;
  }
  
  /* ===== 一层标题小装饰 ===== */
  .advantage-section .section-title.light h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--primary);
    margin: 12px auto 0;
    border-radius: 2px;
  }
  
  
  /* ===== 公司简介 ===== */
  .about-intro {
    display: flex;
    align-items: center;
    gap: 60px;
    flex-wrap: wrap;           /* ✅ 允许换行 */
  }
  
  .about-text {
    flex: 1;
    min-width: 300px;          /* ✅ 防止被挤太窄 */
    font-size: 17px;
    line-height: 1.9;
    color: #444;
    word-wrap: break-word;        /* 旧名 */
    overflow-wrap: break-word;    /* ✅ 推荐 */
    word-break: break-all;
  }
  
    .about-text span {
        white-space: normal !important;
        text-wrap-mode: unset !important;
    }
  
  .about-image {
    flex: 1;
    min-width: 300px;          /* ✅ 与文字同宽，保证换行后好看 */
  }
  
  .about-image img {
    width: 100%;
    border-radius: 12px;
    object-fit: cover;
  }
  
  /* ===== 服务优势背景 ===== */
  .advantage-section {
    position: relative;
    background:
      linear-gradient(rgba(0,0,0,.55), rgba(0,0,0,.55)),
      url("https://picsum.photos/id/1035/1600/900") center/cover no-repeat fixed;
    padding: 100px 0;
  }
  .advantage-grid {
    justify-content: center; 
  }
  
  /* ===== 标题可读性优化 ===== */
  .advantage-section .section-title.light h2 {
    font-size: 36px;
    color: #ffffff;
    text-shadow:
      0 2px 6px rgba(0,0,0,.6),
      0 0 1px rgba(0,0,0,.8); /* 字体描边 */
    letter-spacing: 1px;
  }
  
  .advantage-section .section-title.light p {
    color: #f0f0f0;
    font-size: 17px;
    text-shadow: 0 1px 4px rgba(0,0,0,.5);
    margin-top: 8px;
  }
  
  /* ===== 卡片样式升级 ===== */
  .advantage-item {
    background: rgba(255,255,255,.88);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    padding: 36px 28px;
    border-radius: 14px;
    text-align: center;
    transition: all .35s ease;
    box-shadow: 0 8px 24px rgba(0,0,0,.12);
  }
  
  .advantage-item i {
    font-size: 40px;
    color: var(--primary);
    margin: 18px 0px;
  }
  
  .advantage-item h4 {
    font-size: 20px;
    margin-bottom: 10px;
    color: #111;
  }
  
  .advantage-item p {
    font-size: 14px;
    color: #555;
    line-height: 1.7;
  }
  
  /* 悬浮动效 */
  .advantage-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 36px rgba(0,0,0,.18);
  }
  
  /* ===== 服务项目 ===== */
  .service-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
  }
  
  .service-card {
    text-align: center;
    padding: 25px;
    border: 1px solid #eee;
    border-radius: 10px;
    transition: all .3s;
  }
  
  .service-card:hover {
    box-shadow: 0 10px 30px rgba(0,0,0,.08);
  }
  
  .service-card i {
    font-size: 32px;
    color: var(--primary);
    margin-bottom: 12px;
  }
  
  /* ===== 团队风貌（轮播） ===== */
  .team-slider {
    position: relative;
    overflow: hidden;
    background: #fff;
    border-radius: 16px;
    padding: 40px 30px 30px;
    box-shadow: 0 10px 40px rgba(0,0,0,.06);
  }
  
  /* ===== 团队风貌背景 ===== */
  .team-section {
    background: linear-gradient(135deg, #f4f7fb 0%, #eef1f7 100%);
    padding: 100px 0;
  }
  
  .team-track {
    display: flex;
    transition: transform .5s ease;
  }
  
  .team-slide {
    min-width: 100%;
  }
  
  /* 轮播区域轻微提亮 */
  .team-slider {
    background: #ffffff;
    border-radius: 16px;
    padding: 40px 30px 30px;
    box-shadow: 0 10px 40px rgba(0,0,0,.06);
  }
  
  .team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: 20px;
  }
  
  .team-photo {
    aspect-ratio: 4 / 3;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 6px 18px rgba(0,0,0,.1);
  }
  
  .team-photo:hover {
    transform: scale(1.03);
  }
  
  .team-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  
  /* 轮播指示器 */
  .slider-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
  }
  
  .slider-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ccc;
    cursor: pointer;
  }
  
  .slider-dots span.active {
    background: var(--primary);
  }
  
  /* ===== 企业文化 ===== */
  .culture-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
  }
  
  .culture-item h4 {
    margin-bottom: 10px;
    color: var(--primary);
  }
  
  /* ===== 响应式 ===== */
  @media (min-width: 768px) {
    .advantage-grid {
      display: grid ;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
  }
  
  @media (min-width: 576px) and (max-width: 767.98px) {
    .about-intro { flex-direction: column; }
    .advantage-grid,
    .service-list,
    .team-grid,
    .culture-list {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  
  @media (max-width: 576px) {
    .advantage-grid,
    .service-list,
    .team-grid,
    .culture-list {
      grid-template-columns: 1fr;
    }
  }