/*产品列表展示*/
.product-image-list {margin-top: 20px;  display: grid; grid-template-columns: repeat(3, 1fr); }
.product-image-item {flex: none;margin: 0 6px 25px; overflow: hidden;border: 1px solid #ccc;  transition: transform 0.2s, border-color 0.2s;overflow: hidden; border-radius: 4px; }
.product-image-item:hover {	border: 1px solid #d73a27;transform: translateY(-4px);}
.product-zoomable { width: 100%;transition: transform 0.3s ease; /* 添加平滑过渡 */cursor: pointer; /* 提示可点击 */ }
.product-zoomable:hover { transform: scale(1.05); /* 悬停时轻微放大 */}
.product-image-title { display: block; color: inherit;;text-decoration: none; /* 移除下划线，保持美观 */font-weight: 600; }
.product-image-title:hover { color:  #d73a27; }
.product-image-item .product-content{padding: 18px 22px 15px; }
.product-image-item .applictions{font-size: 16px;line-height: 22px;margin-bottom: 15px;margin-top: 10px; }
.product-image-item p{margin:0;  }
.product-image-item .equipment-link{color:  #d73a27;font-size: 16px;display:inline-flex;gap: 6px; }
.product-image-item .equipment-link::after{content:'→'; font-weight: bold; transition: transform 0.2s;  }
.product-image-item:hover .equipment-link::after{transform: translateX(4px);}

/* ── CHALLENGES CARDS ── */
  .challenges-grid {
    margin-top: 20px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    border: 1px solid #ccc;
    border-radius: 4px;
    overflow: hidden;
    background: #CCC;
   
  }
  .challenge-card {
    padding: 32px 24px;
    transition: background 0.2s;
   background: #f8f8f8;
    
  }
  .challenge-card:hover { background: #eaebed; }
  .challenge-icon {
    font-size: 2rem;
    margin-bottom: 16px;
    display: block;
  }
  .challenge-card h3 {  margin-bottom: 10px;  text-transform: uppercase;}
  .challenge-card p {font-size: 16px; }


/* ── PROCESS STAGES ── */
  .stages-wrapper { display: grid; grid-template-columns: repeat(4, 1fr);  gap: 0;  position: relative;}
  .stages-wrapper::before {  content: ''; position: absolute; top: 65px; left: 10%; right: 10%; height: 2px; background: linear-gradient(90deg, #d10707, #d10707, #d10707); opacity: 0.4; }
  .stage { padding: 28px 20px; text-align: center; position: relative;}
  .stage-num {
    width: 72px; height: 72px;
    background: linear-gradient(135deg, #d73a27, #c63222);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 20px;
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    color: #ffffff;
    position: relative;
    z-index: 1;
    box-shadow: 0 0 28px rgba(215,58,39,0.35);
  }
  .pro-sec-tit-2{line-height: 44px;font-size: 18px;margin-top: 0; }
  .stages-wrapper .stage h3 {font-size: 20px;text-transform: uppercase;}
  .stages-wrapper .stage p {margin-top: 10px;font-size: 18px; }

   /* ── SERVICE COLUMNS ── */
  .service-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    margin-top: 20px;
  }
  .service-block {
    border: 1px solid #ccc;
    border-radius: 4px;
    padding: 36px 32px;
    position: relative;
    overflow: hidden;
  }
  .service-block::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 3px;
    background: linear-gradient(90deg, #d73a27, #c63222);
  }
  .service-icon { font-size: 2.2rem; margin-bottom: 18px; }
  .service-block h3 {
    margin-bottom: 16px;
  }
  .service-block p { font-size: 16px;  margin-bottom: 12px; line-height: 22px; }


  /* ── FAQ ── */
  .faq-list { display: flex; flex-direction: column; gap: 0;margin-top: 20px; }
  .faq-item { border-bottom: 1px solid #ccc;}
  .faq-q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 0;
    cursor: pointer;
    font-weight: 600;
    user-select: none;
    transition: color 0.2s;
  }
  .faq-q:hover { color: #d73a27; }
  .faq-q .toggle {
    width: 28px; height: 28px;
    border: 1px solid #ccc;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    color: #c63222;
    transition: background 0.2s, color 0.2s;
  }
  .faq-item.open .faq-q .toggle { background:#d73a27; border-color: #d73a27; color: #fff; }
  .faq-a {
  
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.2s;
  }
  .faq-item.open .faq-a { max-height: 200px; padding-bottom: 22px; }

  
/* ── SOLUTIONS TABLE ── */
  .solutions-cols {
    margin-top: 30px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .solutions-cols .solution-block {
    background: #f8f8f8;
    border: 1px solid #ccc;
    border-radius: 4px;
    padding: 32px;
  }
  .solutions-cols  .solution-block h3 {
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 0;
  }
  .solution-block h3::before {
    content: '';
    display: inline-block;
    width: 3px;
    height: 20px;
    border-radius: 2px;
     background: #c63222;
  }
   .solutions-cols .solution-block p { font-size: 17px; margin-top: 10px; }
    .solutions-cols .feature-list { list-style: none; }
    .solutions-cols .feature-list li {
    font-size: 16px;
    padding: 7px 0;
    border-bottom: 1px solid #ccc;
    display: flex;
    align-items: flex-start;
    gap: 10px;
  }
   .solutions-cols .feature-list li:last-child { border-bottom: none; }
    .solutions-cols .feature-list li::before {
    content: '✓';
    color: #c63222;
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 1px;
    position: relative;
    background: none;
    top:0;
  }

   @media (max-width: 900px) {
    .topbar { padding: 14px 24px; }
    .topbar-nav { display: none; }
    .hero { padding: 0 24px 48px; min-height: 420px; }
    .hero-stats { position: static; margin-top: 36px; justify-content: flex-start; }
    .section { padding: 60px 24px; }
    .breadcrumb { padding: 14px 24px; }
    .intro-grid { grid-template-columns: 1fr; }
    .challenges-grid { grid-template-columns: 1fr 1fr; }
    .stages-wrapper { grid-template-columns: 1fr 1fr; }
    .stages-wrapper::before { display: none; }
    .product-image-list { grid-template-columns: 1fr 1fr; }
    .solutions-cols { grid-template-columns: 1fr; }
    .specs-strip { grid-template-columns: 1fr 1fr; }
    .cases-row { grid-template-columns: 1fr; }
    .service-grid { grid-template-columns: 1fr; }
    .cta-section { padding: 60px 24px; }
    .footer { padding: 32px 24px; }
    .divider { margin: 0 24px; }
   }