.banner {
    position: relative;
    text-align: center;
  }
  .banner-img {
    width: 100%;
    height: 600px;
    object-fit: cover;
    filter: brightness(0.7);
  }
  .banner-title {
    position: absolute;
    left: 0; right: 0; top: 50%;
    transform: translateY(-50%);
    color: #fff;
    font-size: 78px;
    font-weight: bold;
    letter-spacing: 2px;
  }

  .banner-video {
    width: 100%;
    height: 600px;
    object-fit: cover;
    filter: brightness(0.7);
    display: block;
  }

  .social-media {
    margin: 40px auto 100px auto;
    max-width: 1100px;
    text-align: center;
  }
  .social-media h2 {
    font-size: 3rem;
    color: #1e3264;
    margin-bottom: 12px;
  }
  .social-icons {
    display: flex;
    justify-content: space-around;
    gap: 80px;
    margin-top: 24px;
    border-top: 1px solid #bbb;
    padding-top: 24px;
  }

  .social-icons  i {
    font-size: 2.2rem;
    margin-bottom: 15px;
  }

  .social-icons > a {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 1.1rem;
    color: #222;
  }
  .icon {
    font-size: 2.2rem;
    margin-bottom: 8px;
  }
  
  .offices {
    max-width: 1100px;
    margin: 40px auto;
    text-align: center;
  }
  .offices h2 {
    color: #1e3264;
    font-size: 3rem;
    margin-bottom: 8px;
  }
  .offices p {
    color: #222;
    font-size: 1.8rem;
    margin-bottom: 24px;
  }
  .hq {
    background-image: url('../img/address.jpg');
    background-size: cover;
    background-position: center;
    position: relative;
    border-radius: 8px;
    height: 150px;
    overflow: hidden;
    display: flex;
    align-items: center;
    margin-bottom: 32px;
    box-shadow: 0 2px 8px rgba(30,50,100,0.08);
  }
  
  .hq-info {
    background: rgba(30, 50, 100, 0.5);
    padding: 16px 32px;
    border-radius: 8px;
    width: 100%;
    height: 100%;
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: left;
    line-height: 1.8;
  }

  .hq-title {
    font-weight: bold;
    font-size: 1.5rem;
    margin-right: 8px;
  }

  .hq-title i {
    font-size: 1.8rem;
    margin-right: 8px;
  }
  
  .branches {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }

  .office-card {
    background: rgba(30, 50, 100, 0.1);
    border-radius: 8px;
    padding: 18px 20px;
    text-align: left;
    box-shadow: 0 2px 8px rgba(30,50,100,0.06);
    margin-bottom: 0;
    line-height: 1.3;
  }
  .office-title {
    font-weight: bold;
    color: #1e3264;
    margin-bottom: 6px;
  }

  .office-title i {
    color: #f3c415;
    font-size: 1.3rem;
    margin-right: 8px;
  }

  .contact-table {
    display: table;
    width: 100%;
  }
  .contact-row {
    display: table-row;
  }
  .contact-label, .contact-value {
    display: table-cell;
    vertical-align: top;
    padding-bottom: 4px;
  }
  .contact-label {
    min-width: 60px; /* 可根据实际调整 */
    width: 1px;
    white-space: nowrap;
    padding-right: 8px;
  }

  @media (max-width: 900px) {
    .branches {
      grid-template-columns: 1fr;
    }
    .hq {
      flex-direction: column;
      text-align: center;
    }
    .hq-info {
      font-size: 0.75rem;
      line-height: 1.5;
      padding: 6px 10px;
      text-align: center;
    }
    .hq-title {
      font-size: 0.95rem;
    }
    .social-icons {
      /* flex-direction: column; */
      /* align-items: center; */
      /* gap: 24px; */
    }
    .social-icons > a {
      /* width: 100%;
      display: flex;
      flex-direction: row;
      align-items: center;
      justify-content: flex-start;
      gap: 12px;
      font-size: 1.1rem;
      padding-left: 1.2em;
      box-sizing: border-box; */
    }
    .social-icons i {
      font-size: 2.2rem;
      margin-bottom: 0;
    }
    .banner-title {
      font-size: 2.5em;
    }
    .social-media h2 {
      font-size: 2.1rem;
    }
    .banner-img,
    .banner-video {
      height: 420px;
    }
    .offices h2 {
      font-size: 2.1rem;
    }
    .offices p {
      font-size: 1.26rem;
    }
    .hq {
      height: 105px;
    }
    .office-title {
      font-size: 1.05rem;
    }
    .office-card {
      font-size: 0.77rem;
      padding: 12.6px 14px;
    }
    .offices {
      padding-left: 1em;
      padding-right: 1em;
    }
    .hq-title i {
      font-size: 1.26rem;
    }
  }