body {
    background: #f7f9fa;
    font-family: 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
    color: #222;
    margin: 0;
  }
  
  /* 顶部横幅 */
  .banner {
    width: 100%;
    background: linear-gradient(120deg, #f7fafb 60%, #e8f5e9 100%);
    min-height: 320px;
    position: relative;
    padding: 0;
  }
  .banner-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 40px 0 0 0;
  }
  .banner-left {
    flex: 1;
    padding-left: 40px;
  }
  .banner-title {
    font-size: 36px;
    font-weight: bold;
    color: #3cb371;
    margin-bottom: 16px;
  }
  .banner-subtitle {
    font-size: 28px;
    font-weight: bold;
    color: #222;
    margin-bottom: 8px;
  }
  .banner-model {
    font-size: 16px;
    color: #888;
    margin-bottom: 24px;
  }
  .banner-btn {
    display: inline-block;
    background: #222;
    color: #fff;
    font-size: 16px;
    border-radius: 6px;
    padding: 12px 32px;
    text-decoration: none;
    font-weight: 500;
    margin-top: 8px;
    transition: background .2s;
  }
  .banner-btn:hover { background: #444; }
  .banner-right {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding-right: 40px;
  }
  .banner-product-img {
    width: 340px;
    height: 320px;
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 4px 32px rgba(60,179,113,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .banner-product-img img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
  }
  
  /* 横向Tab导航 */
  .page_tab {
    background: #fff;
    border-bottom: 1px solid #eee;
    margin-bottom: 0;
  }
  .page_tab .w1200 {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    height: 60px;
  }
  .page_tab h2 {
    font-size: 20px;
    font-weight: 500;
    margin: 0 32px 0 0;
    color: #222;
  }
  #tabs {
    display: flex;
    gap: 24px;
    list-style: none;
    margin: 0;
    padding: 0;
  }
  #tabs li {
    display: inline-block;
  }
  #tabs li a {
    color: #888;
    font-size: 16px;
    padding: 0 8px;
    text-decoration: none;
    line-height: 60px;
    transition: color .2s;
  }
  #tabs li.cur a, #tabs li a:hover {
    color: #3cb371;
    font-weight: bold;
  }
  
  /* 主内容区三栏布局 */
  .page_m_cp {
    background: none;
    padding: 0;
  }
  .main-3col {
    max-width: 1200px;
    margin: 40px auto 0 auto;
    display: flex;
    gap: 32px;
  }
  .main-3col-left {
    flex: 0 0 320px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 2px 16px rgba(60,179,113,0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 360px;
  }
  .main-3col-left img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
  }
  .main-3col-center {
    flex: 1;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 2px 16px rgba(60,179,113,0.06);
    padding: 40px 32px 32px 32px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .main-title {
    font-size: 28px;
    font-weight: bold;
    margin-bottom: 8px;
  }
  .main-model {
    font-size: 16px;
    color: #888;
    margin-bottom: 16px;
  }
  .main-tags {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
  }
  .main-tag {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 16px;
    color: #3cb371;
    font-weight: 500;
  }
  .main-tag svg {
    width: 20px;
    height: 20px;
    display: inline-block;
  }
  .main-desc {
    font-size: 16px;
    color: #444;
    margin-bottom: 32px;
    line-height: 1.7;
  }
  .main-btn {
    display: inline-block;
    background: #3cb371;
    color: #fff;
    font-size: 16px;
    border-radius: 6px;
    padding: 12px 32px;
    text-decoration: none;
    font-weight: 500;
    transition: background .2s;
  }
  .main-btn:hover { background: #2e8b57; }
  .main-3col-right {
    flex: 0 0 260px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 2px 16px rgba(60,179,113,0.06);
    padding: 32px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 360px;
  }
  .right-title {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 8px;
    color: #222;
    text-align: center;
  }
  .right-model {
    font-size: 14px;
    color: #888;
    margin-bottom: 16px;
    text-align: center;
  }
  .right-tags {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    justify-content: center;
  }
  .right-tag {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 14px;
    color: #3cb371;
    font-weight: 500;
  }
  .right-tag svg {
    width: 16px;
    height: 16px;
    display: inline-block;
  }
  .right-desc {
    font-size: 14px;
    color: #444;
    margin-bottom: 24px;
    text-align: center;
    line-height: 1.6;
  }
  .right-btn {
    display: inline-block;
    background: #3cb371;
    color: #fff;
    font-size: 14px;
    border-radius: 6px;
    padding: 10px 24px;
    text-decoration: none;
    font-weight: 500;
    transition: background .2s;
  }
  .right-btn:hover { background: #2e8b57; }
  
  /* 参数卡片 */
  .product-params-cards {
    display: flex;
    gap: 32px;
    max-width: 1200px;
    margin: 40px auto 0 auto;
  }
  .param-card {
    flex: 1;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 2px 12px rgba(60,179,113,0.08);
    padding: 28px 0 22px 0;
    display: flex;
    align-items: center;
    min-width: 0;
    transition: box-shadow .2s;
    padding-left: 24px;
  }
  .param-icon-wrap {
    width: 56px;
    height: 56px;
    background: #eafaf1;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 18px;
    flex-shrink: 0;
  }
  .param-icon-wrap svg {
    width: 28px;
    height: 28px;
    display: block;
  }
  .param-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }
  .param-title {
    font-size: 18px;
    font-weight: bold;
    color: #222;
    margin-bottom: 6px;
    line-height: 1.2;
  }
  .param-value {
    font-size: 16px;
    color: #444;
    line-height: 1.2;
  }
  
  /* 产品特点 */
  .section-title {
    max-width: 1200px;
    margin: 60px auto 32px auto;
    font-size: 24px;
    font-weight: bold;
    color: #222;
    text-align: center;
  }
  .product-features {
    max-width: 1200px;
    margin: 0 auto 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .feature-card {
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 2px 12px rgba(60,179,113,0.06);
    padding: 32px 32px 24px 32px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }
  .feature-img {
    width: 100%;
    height: 120px;
    background: #eafaf1;
    border-radius: 8px;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
  }
  .feature-img img {
    max-width: 100%;
    max-height: 100%;
    width: 100%;
    height: 100%;
   
  }
  .feature-title {
    font-size: 18px;
    font-weight: bold;
    color: #222;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .feature-title svg {
    width: 22px;
    height: 22px;
  }
  .feature-desc {
    font-size: 14px;
    color: #444;
    line-height: 1.7;
  }
  
  /* 应用场景 */
  .product-scenes {
    max-width: 1200px;
    margin: 60px auto 0 auto;
    display: flex;
    gap: 32px;
  }
  .scene-card {
    flex: 1;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 2px 12px rgba(60,179,113,0.06);
    padding: 0 0 24px 0;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }
  .scene-img {
    width: 100%;
    height: 140px;
    background: #eafaf1;
    border-radius: 8px 8px 0 0;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
  }
  .scene-title {
    font-size: 18px;
    font-weight: bold;
    color: #222;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .scene-title svg {
    width: 22px;
    height: 22px;
  }
  .scene-desc {
    font-size: 14px;
    color: #444;
    line-height: 1.7;
  }
  
  /* 技术原理 */
  .product-tech {
    max-width: 1200px;
    margin: 60px auto 0 auto;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 2px 12px rgba(60,179,113,0.06);
    display: flex;
    align-items: center;
    gap: 40px;
    padding: 40px 40px 32px 40px;
  }
  .tech-img {
    flex: 0 0 340px;
    height: 220px;
    background: #eafaf1;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
  }
  .tech-img img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
  }
  .tech-info {
    flex: 1;
  }
  .tech-title {
    font-size: 20px;
    font-weight: bold;
    color: #222;
    margin-bottom: 12px;
  }
  .tech-desc {
    font-size: 15px;
    color: #444;
    line-height: 1.7;
  }
  
  /* 规格参数 */
  .product-specs-section {
    max-width: 1200px;
    margin: 60px auto 0 auto;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 2px 12px rgba(60,179,113,0.06);
    padding: 32px 0 32px 0;
  }
  .product-specs-title {
    font-size: 24px;
    font-weight: bold;
    color: #222;
    text-align: center;
    margin-bottom: 24px;
  }
  .product-specs {
    width: 90%;
    margin: 0 auto;
    border-collapse: collapse;
  }
  .product-specs tr {
    border-bottom: 1px solid #eee;
  }
  .product-specs tr:last-child {
    border-bottom: none;
  }
  .product-specs td {
    padding: 16px 24px;
    font-size: 16px;
  }
  .product-specs td:first-child {
    font-weight: 500;
    color: #222;
    background: #f7f9fa;
    width: 200px;
  }
  .product-specs td:last-child {
    color: #444;
  }
  
  /* 底部深色Footer */
  .footer {
    background: #181d23;
    color: #bfc6d1;
    padding: 48px 0 0 0;
    margin-top: 60px;
  }
  .footer-main {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    gap: 40px;
    flex-wrap: wrap;
  }
  .footer-col {
    flex: 1;
    min-width: 180px;
    margin-bottom: 32px;
  }
  .footer-col h4 {
    color: #fff;
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 18px;
  }
  .footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
  }
  .footer-col ul li {
    margin-bottom: 10px;
  }
  .footer-col ul li a {
    color: #bfc6d1;
    text-decoration: none;
    font-size: 14px;
    transition: color .2s;
  }
  .footer-col ul li a:hover {
    color: #3cb371;
  }
  .footer-contact {
    font-size: 14px;
    line-height: 2;
  }
  .footer-bottom {
    border-top: 1px solid #23272e;
    margin-top: 24px;
    padding: 24px 0;
    text-align: center;
    color: #7a8599;
    font-size: 13px;
  }
  
  /* 响应式 */
  @media (max-width: 1200px) {
    .banner-inner, .main-3col, .product-params-cards, .product-features, .product-scenes, .product-tech, .product-specs-section, .footer-main {
      max-width: 98vw;
      padding-left: 10px;
      padding-right: 10px;
    }
  }
  @media (max-width: 900px) {
    .banner-inner, .main-3col, .product-params-cards, .product-features, .product-scenes, .product-tech, .product-specs-section, .footer-main {
      flex-direction: column !important;
      gap: 20px !important;
    }
    .main-3col-left, .main-3col-center, .main-3col-right {
      min-width: 0;
      width: 100%;
    }
    .product-features, .product-scenes {
      grid-template-columns: 1fr !important;
    }
  }
  
  /* 主内容区样式 */
  .main-section {
    max-width: 1200px;
    margin: 40px auto 0 auto;
    padding: 0 20px;
  }
  .main-flex {
    display: flex;
    gap: 48px;
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 4px 24px rgba(60,179,113,0.08);
    padding: 48px 40px;
    align-items: center;
    margin-bottom: 48px;
  }
  .main-flex-img {
    flex: 0 0 420px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .main-flex-img svg {
    width: 340px;
    height: 320px;
    display: block;
  }
  .main-flex-img img {
    cursor: zoom-in;
    position: relative;
  }
  .main-flex-info {
    flex: 1;
  }
  .main-flex-title {
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 12px;
  }
  .main-flex-model {
    font-size: 16px;
    color: #888;
    margin-bottom: 20px;
  }
  .main-flex-tags {
    display: flex;
    gap: 24px;
    margin-bottom: 20px;
  }
  .main-flex-tag {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 18px;
    color: #43b36a;
    font-weight: 500;
  }
  .main-flex-tag svg {
    width: 22px;
    height: 22px;
  }
  .main-flex-desc {
    font-size: 16px;
    color: #444;
    margin-bottom: 32px;
    line-height: 1.7;
  }
  .main-flex-btn {
    display: inline-block;
    background: #43b36a;
    color: #fff;
    font-size: 18px;
    border-radius: 6px;
    padding: 12px 40px;
    text-decoration: none;
    font-weight: 500;
    transition: background .2s;
  }
  .main-flex-btn:hover { background: #2e8b57; }
  
  .section-title {
    font-size: 26px;
    font-weight: bold;
    color: #222;
    text-align: center;
    margin: 60px 0 32px 0;
  }
  
  /* 产品特点 */
  .features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    max-width: 1200px;
    margin: 0 auto 0 auto;
  }
  .feature-card {
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 2px 12px rgba(60,179,113,0.06);
    padding: 32px 32px 24px 32px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }
  .feature-img {
    width: 100%;
    height: 120px;
    background: #eafaf1;
    border-radius: 8px;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
  }
  .feature-img svg {
    width: 64px;
    height: 64px;
  }
  .feature-title {
    font-size: 18px;
    font-weight: bold;
    color: #222;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .feature-title svg {
    width: 22px;
    height: 22px;
  }
  .feature-desc {
    font-size: 14px;
    color: #444;
    line-height: 1.7;
  }
  
  /* 应用场景 */
  .scenes-flex {
    display: flex;
    gap: 32px;
    max-width: 1200px;
    margin: 0 auto 0 auto;
  }
  .scene-card {
    flex: 1;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 2px 12px rgba(60,179,113,0.06);
    padding: 0 0 24px 0;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }
  .scene-img {
    width: 100%;
    height: 140px;
    background: #eafaf1;
    border-radius: 8px 8px 0 0;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
  }
  .scene-img svg {
    width: 64px;
    height: 64px;
  }
  .scene-img img {
    max-width: 100%;
    max-height: 100%;

    border-radius: 8px 8px 0 0;
  }
  .scene-title {
    font-size: 18px;
    font-weight: bold;
    color: #222;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .scene-title svg {
    width: 22px;
    height: 22px;
  }
  .scene-desc {
    font-size: 14px;
    color: #444;
    line-height: 1.7;
  }
  
  /* 技术原理 */
  .tech-flex {
    display: flex;
    gap: 40px;
    max-width: 1200px;
    margin: 60px auto 0 auto;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 2px 12px rgba(60,179,113,0.06);
    align-items: center;
    padding: 40px 40px 32px 40px;
  }
  .tech-img {
    flex: 0 0 340px;
    height: 220px;
    background: #eafaf1;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
  }
  .tech-img svg {
    width: 180px;
    height: 180px;
  }
  .tech-info {
    flex: 1;
  }
  .tech-title {
    font-size: 20px;
    font-weight: bold;
    color: #222;
    margin-bottom: 12px;
  }
  .tech-desc {
    font-size: 15px;
    color: #444;
    line-height: 1.7;
  }
  
  /* 规格参数 */
  .specs-section {
    max-width: 1200px;
    margin: 60px auto 0 auto;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 2px 12px rgba(60,179,113,0.06);
    padding: 32px 0 32px 0;
  }
  .specs-title {
    font-size: 24px;
    font-weight: bold;
    color: #222;
    text-align: center;
    margin-bottom: 24px;
  }
  .specs-table {
    width: 90%;
    margin: 0 auto;
    border-collapse: collapse;
  }
  .specs-table tr {
    border-bottom: 1px solid #eee;
  }
  .specs-table tr:last-child {
    border-bottom: none;
  }
  .specs-table td {
    padding: 16px 24px;
    font-size: 16px;
  }
  .specs-table td:first-child {
    font-weight: 500;
    color: #222;
    background: #f7f9fa;
    width: 200px;
  }
  .specs-table td:last-child {
    color: #444;
  }
  
  @media (max-width: 900px) {
    .main-section {
      padding: 0 4vw;
    }
    .main-flex, .tech-flex, .scenes-flex {
      flex-direction: column;
      gap: 20px;
      padding: 20px 0;
      box-sizing: border-box;
    }
    .main-flex-img, .tech-img {
      width: 100%;
      height: auto;
      min-width: 0;
      justify-content: center;
    }
    .main-flex-title {
      font-size: 22px;
    }
    .main-flex-model, .main-flex-desc {
      font-size: 14px;
    }
    .main-flex-btn {
      font-size: 16px;
      padding: 10px 24px;
    }
    .main-flex-tag {
      font-size: 15px;
    }
    .main-flex-tag svg {
      width: 18px;
      height: 18px;
    }
    .product-params-cards {
      flex-direction: column;
      gap: 16px;
    }
    .param-card {
      padding: 14px 0 10px 24px;
    }
    .param-title {
      font-size: 16px;
    }
    .param-value {
      font-size: 14px;
    }
    .param-icon-wrap {
      width: 40px;
      height: 40px;
      margin-right: 12px;
    }
    .param-icon-wrap svg {
      width: 20px;
      height: 20px;
    }
    .product-params-cards, .features-grid {
      flex-direction: column !important;
      display: flex !important;
      gap: 16px !important;
    }
    .param-card, .feature-card, .scene-card {
      min-width: 0;
      width: 100%;
      box-sizing: border-box;
      padding: 20px 12px 16px 12px;
    }
    .param-title, .feature-title, .scene-title {
      font-size: 16px;
    }
    .param-icon svg, .feature-img svg, .scene-img svg {
      width: 40px !important;
      height: 40px !important;
    }
    .features-grid {
      grid-template-columns: 1fr !important;
    }
    .scenes-flex {
      flex-direction: column;
      gap: 16px;
    }
    .scene-img, .feature-img {
      height: 80px;
    }
    .section-title {
      font-size: 18px;
      margin: 36px 0 18px 0;
    }
    .tech-img svg {
      width: 100px;
      height: 100px;
    }
    .tech-title {
      font-size: 16px;
    }
    .tech-desc {
      font-size: 13px;
    }
    .specs-section {
      padding: 16px 0 16px 0;
    }
    .specs-title {
      font-size: 18px;
      margin-bottom: 12px;
    }
    .specs-table td {
      font-size: 13px;
      padding: 10px 8px;
    }
    .specs-table {
      width: 100%;
    }
  }
  
  @media (max-width: 900px) {
    .page_tab {
      display: none;
    }
    .mobile-tabs {
      display: flex;
      justify-content: center;
      gap: 10px;
      margin: 18px 0 18px 0;
      padding: 0 2vw;
    }
    .mobile-tab-btn {
      background: #f7f9fa;
      border: none;
      border-radius: 18px;
      padding: 8px 18px;
      font-size: 15px;
      color: #222;
      font-weight: 500;
      transition: background .2s, color .2s;
    }
    .mobile-tab-btn.active {
      background: #43b36a;
      color: #fff;
    }
  }
  @media (min-width: 901px) {
    .mobile-tabs {
      display: none !important;
    }
  }
  .product-swiper {
    width: 280px;
    height: 280px;
  }
  .product-swiper .swiper-slide {
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
  }
  .product-swiper img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
  }