/* ===== Banner ===== */
      .page-banner {
        width: 100%;
        height: 320px;
        background: url("/images/servicebanner.jpg") no-repeat center center;
        background-size: cover;
        display: flex;
        align-items: center;
        justify-content: center;
        position: relative;
      }
 

      @media (max-width: 768px) {
        .page-banner {
          height: 220px;
        }
        .page-banner .banner-text h1 {
          font-size: 2.2rem;
        }
      }

      /* ===== 面包屑 ===== */
      .page-nav {
        max-width: 1200px;
        margin: 0 auto;
        padding: 18px 20px;
        border-bottom: 1px solid #e8ecf2;
        display: flex;
        align-items: center;
        gap: 12px;
        font-size: 0.9rem;
        color: #6a7f9b;
      }
      .page-nav a {
        color: #1a2639;
        text-decoration: none;
        transition: 0.2s;
      }
      .page-nav a:hover {
        color: #ae1623;
      }
      .page-nav .sep {
        color: #c0c8d6;
      }
      .page-nav .current {
        color: #ae1623;
        font-weight: 600;
      }

      /* ===== 内容主体 ===== */
      .content-wrapper {
        max-width: 1200px;        margin: 0 auto;
        padding: 20px 20px 20px;
      }


/* ===== 新闻中心头部 ===== */
.news-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 20px;
}

.news-header-left {
    display: flex;
    flex-direction: column;
}
.news-header-left .main-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: #1a2639;
    letter-spacing: 2px;
}
.news-header-left .sub-title {
    font-size: 0.9rem;
    color: #6a7f9b;
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-top: 2px;
}

/* 新闻分类 - 无圆角红色背景，框不动只动横线 */
.news-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}
.news-categories .cat-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: #fff;
    cursor: pointer;
    padding: 8px 18px;
    background: rgb(164, 30, 37);
    border-radius: 0;
    transition: background 0.2s;
    text-decoration: none;
}
.news-categories .cat-item .line {
    display: inline-block;
    width: 0;
    height: 2px;
    background: rgba(255, 255, 255, 0.8);
    transition: width 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    flex-shrink: 0;
}
.news-categories .cat-item.active .line,
.news-categories .cat-item:hover .line {
    width: 24px;
}
.news-categories .cat-item:hover,
.news-categories .cat-item.active {
    background: rgb(164, 30, 37);
    transform: none;
    box-shadow: none;
}
.news-divider {
    width: 100%;
    height: 1px;
    background: #d0d7e2;
    margin: 10px 0 30px 0;
}

@media (max-width: 768px) {
    .news-header {
        flex-direction: column;
        gap: 0px;
    }
    .news-header-left .main-title {
        font-size: 1.8rem;
    }
    .news-categories .cat-item {
        font-size: 0.8rem;
        padding: 6px 14px;
    }
}
@media (max-width: 480px) {
    .news-categories .cat-item {
        font-size: 0.7rem;
        padding: 5px 10px;
    }
}


      /* ============================================================
                       第一部分：左侧图片 + 右侧介绍（带背景图）- PC端样式
                       ============================================================ */
      .service-intro {
        display: flex;
        gap: 0;
        margin-bottom: 60px;
        position: relative;
        align-items: stretch;
        min-height: 500px;
      }

      /* 左侧图片：压在背景上，距顶部40px，从右往左40px */
      .service-intro .intro-image {
        flex: 0 0 66%;
        position: relative;
        z-index: 3;
        padding: 40px 40px 0 0;
        display: flex;
        align-items: flex-start;
      }
      .service-intro .intro-image img {
        width: 100%;
        height: auto;
        display: block;
        box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
      }

      /* 右侧介绍区域：使用绝对定位实现重叠效果 */
      .service-intro .intro-content {
        position: absolute;
        left: 48%;
        top: 40px;
        right: 0;
        bottom: 0;

        display: flex;
        flex-direction: column;
        min-height: 460px;
      }

      /* 背景图 xm.png - 平铺效果 */
      .service-intro .intro-content .bg-decoration {
        position: absolute;
        inset: 0;
        background-image: url("/images/xm.png");
        background-repeat: repeat;
        background-size: auto;
        top: 100px;
        box-shadow: 0 0 30px rgba(0,0,0,0.15);
        left: -40px;
        background-position: top left;
        z-index: 22;
        width: 100%;
        margin-bottom: 100px;
        pointer-events: none;
      }

      /* 背景色遮罩层 - 在背景图顶部向下60px */
      .service-intro .intro-content .bg-overlay {
        position: absolute;
        top: 250px;
        left: 0;
        right: 0px;
        bottom: 60px;
        z-index: 2;
        pointer-events: none;
        background-color: rgba(174, 22, 35, 1);
      }

      /* 确保内容在遮罩之上 */
      .service-intro .intro-content > *:not(.bg-decoration):not(.bg-overlay) {
        position: relative;
        z-index: 33;
      }

      .service-intro .intro-content .intro-title {
        font-size: 2rem;
        color: #000;
        line-height: 40px;
        margin: 10px;
        letter-spacing: 2px;
        margin-bottom: 12px;
        margin-top: 130.8px;
      }
      .service-intro .intro-content .intro-line {
        width: 60px;
        height: 3px;
        background: #000;
        margin-bottom: 10px;
        margin-left: 10px;
        
      }
      .service-intro .intro-content .intro-text {
        font-size: 0.8rem;
        line-height: 2.5;
        color: #000;
        max-width: 94%;
        padding-top: 10px;
        padding-right: 40px;
      }
      .service-intro .intro-content .intro-more {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 1rem;
        font-weight: 600;
        color: #000;
        margin-top:20px;
        text-decoration: none;
        transition: 0.3s;
        border-bottom: 2px solid transparent;
        padding-bottom: 4px;
        width: fit-content;
      }
      .service-intro .intro-content .intro-more i {
        transition: 0.3s;
      }
      .service-intro .intro-content .intro-more:hover {
        border-bottom-color: #000;
      }
      .service-intro .intro-content .intro-more:hover i {
        transform: translateX(4px);
      }

      /* ============================================================
                       第二部分：案例列表（一行两个）- PC端样式
                       ============================================================ */
      .case-section-title {
        font-size: 1.8rem;
        font-weight: 700;
        color: #1a2639;
        margin-bottom: 30px;
        letter-spacing: 1px;
      }
      .case-section-title .highlight {
        color: #ae1623;
        font-weight:normal;
      }

      .case-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 24px;
      }

      .case-card-item {
        background: #ffffff;
        display: flex;
        gap: 24px;
        transition: 0.3s ease;
        box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        position: relative;
        cursor: default;
        flex-direction: row;
      }
      .case-card-item:hover {
        box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        transform: translateY(-2px);
      }

      .case-card-item .case-info {
        flex: 1;
        display: flex;
        padding: 35px;
        flex-direction: column;
        min-width: 0;
      }
      .case-card-item .case-info .case-name {
        font-size: 1rem;
        font-weight: 700;
        color: #1a2639;
        margin-bottom: 6px;
        line-height: 1.3;
      }
      .case-card-item .case-info .case-desc {
        font-size: 0.8rem;
        color: #6a7f9b;
        line-height: 2;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        margin-bottom: 12px;
      }
      .case-card-item .case-info .case-more {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 0.85rem;
        font-weight: 600;
        color: #ae1623;
        text-decoration: none;
        transition: 0.3s;
        width: fit-content;
      }
      .case-card-item .case-info .case-more i {
        transition: 0.3s;
        font-size: 0.7rem;
      }
      .case-card-item .case-info .case-more:hover i {
        transform: translateX(4px);
      }

      .case-card-item .case-image {
        flex-shrink: 0;
        width: 160px;
        overflow: hidden;
        background: #d9e2f0;
        display: flex;
       
        color: #6a7f9b;
        font-size: 0.7rem;
      }
      .case-card-item .case-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        display: block;
      }

      .case-card-item::after {
        content: "";
        position: absolute;
        bottom: 0;
        left: 30px;
        right: 30px;
        height: 1px;
        background: #e8ecf2;
      }

      /* ============================================================
                       响应式：仅针对手机端调整，PC端样式完全不变
                       ============================================================ */
      @media (max-width: 768px) {
        /* 第一部分：改为上下结构 */
        .service-intro {
          flex-direction: column;
          min-height: auto;
          gap: 0;
        }
        .service-intro .intro-image {
          flex: auto;
          padding: 0 0 20px 0;
          width: 100%;
        }
        .service-intro .intro-image img {
          width: 100%;
          height: auto;
        }
        .service-intro .intro-content {
          position: relative;
          left: auto;
          top: auto;
          right: auto;
          bottom: auto;
          padding: 30px 24px 35px;
          min-height: auto;
          width: 100%;
        }
        .service-intro .intro-content .intro-title {
          color: #fff;
          font-size: 1.6rem;
        }
        .service-intro .intro-content .intro-text {
          max-width: 100%;
          font-size: 0.95rem;
          color: #fff;
        }
        .service-intro .intro-content .bg-overlay {
          top: 30px;
        }
        .service-intro .intro-content .bg-decoration {
          opacity: 0;
        }

        .service-intro .intro-content .intro-more {
          color: #fff;
        }
        .service-intro .intro-content .intro-more i {
          transition: 0.3s;
        }
        .service-intro .intro-content .intro-more:hover {
          border-bottom-color: #fff;
        }
        .service-intro .intro-content .intro-more:hover i {
          transform: translateX(4px);
        }

        /* 第二部分：案例改为单列 */
        .case-grid {
          grid-template-columns: 1fr;
          gap: 16px;
        }
        .case-card-item {
          padding: 20px 20px;
          flex-direction: column;
          align-items: flex-start;
        }
        .case-card-item .case-image {
          width: 100%;
          height: 160px;
          order: -1;
          margin-bottom: 12px;
        }
        .case-card-item .case-info .case-name {
          font-size: 1rem;
        }
        .case-card-item .case-info .case-desc {
          font-size: 0.85rem;
          -webkit-line-clamp: 3;
        }
        .case-card-item::after {
          left: 20px;
          right: 20px;
        }
        .case-section-title {
          font-size: 1.5rem;
          margin-top: 20px;
          margin-bottom: 0px;
        }
      }

      /* 小屏手机额外优化 */
      @media (max-width: 480px) {
          .service-intro{
              margin-bottom: 0px;
          }
          .case-card-item .case-info{
              margin: 0px;
              padding: 0px;;
          }
        .service-intro .intro-content {
          padding: 20px 20px 8px;
        }
        .service-intro .intro-content .intro-title {
            margin-top: 0px;
          font-size: 1.3rem;
        }
        .service-intro .intro-content .intro-text {
            padding: 0px;
            margin: 0px;
          font-size: 0.88rem;
        }
        .service-intro .intro-content .intro-line {
          background: #fff;
          width: 40px;
        }
        .service-intro .intro-content .bg-overlay {
            bottom: 0px;
          top: 0px;
        }
        .service-intro .intro-content .bg-decoration {
          opacity: 0;
        }
        .case-card-item {
          padding: 16px 16px;
        }
        .case-card-item .case-image {
          height: 130px;
        }
        .case-card-item .case-info .case-name {
          font-size: 0.95rem;
        }
        .case-card-item .case-info .case-desc {
          font-size: 0.8rem;
        }
      }

      /* ===== 底部 ===== */
      .footer {
        width: 100%;
        border-top: 1px solid rgba(0, 0, 0, 0.05);
        padding: 30px 20px 20px;
        text-align: center;
        font-size: 0.8rem;
        color: #2d4059;
        line-height: 1.7;
        background: #f8faff;
      }
      .footer .footer-row {
        max-width: 1200px;
        margin: 0 auto;
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        align-items: baseline;
        gap: 6px 20px;
      }
      .footer .footer-row .sep {
        color: #b0b8c5;
        margin: 0 4px;
      }
      .footer .footer-row a {
        color: #3b6cb7;
        text-decoration: none;
      }
      .footer .footer-row a:hover {
        text-decoration: underline;
      }
      @media (max-width: 768px) {
        .footer {
          padding: 20px 16px 16px;
          font-size: 0.7rem;
        }
      }