.foldable-container {
    max-width: 1350px;
    margin: 40px auto;
    background: linear-gradient(135deg, #f8fafc 0%, #eef2f7 100%);
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    color: #0f172a;
    padding: 32px;
    transition: all 0.3s ease;
  }

  .foldable-container:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.12);
  }

  .foldable-content p {
    font-size: clamp(0.95rem, 1.4vw, 1.1rem);
    line-height: 1.8;
    color: #1e293b;
    margin-bottom: 16px;
  }

  .foldable-content strong {
    display: block;
    font-size: clamp(1.2rem, 2.5vw, 1.8rem);
    color: #0f172a;
    margin-bottom: 16px;
    font-weight: 600;
  }

  .foldable-content a {
    color: #0056d2;
    text-decoration: none;
    font-weight: 500;
  }

  .foldable-content a:hover {
    text-decoration: underline;
    color: #003f9a;
  }

  /* 折叠控制 */
  .foldable-content {
    max-height: 320px;
    overflow: hidden;
    transition: max-height 0.6s ease;
  }

  .foldable-content.expanded {
    max-height: 2000px;
  }

  .read-more-button {
    display: inline-block;
    margin-top: 12px;
    background: linear-gradient(90deg, #0056d2, #0072ff);
    color: #fff;
    padding: 10px 26px;
    border-radius: 30px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
  }

  .read-more-button:hover {
    background: linear-gradient(90deg, #0072ff, #00b4ff);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 114, 255, 0.3);
  }

  /* 移动端优化 */
  @media (max-width: 768px) {
    .foldable-container {
      padding: 24px;
      border-radius: 12px;
    }

    .read-more-button {
      width: 100%;
      font-size: 1rem;
      padding: 12px 0;
    }
  }

  @media (max-width: 480px) {
    .foldable-content p {
      font-size: 0.95rem;
    }

    .foldable-content strong {
      font-size: 1.3rem;
    }
  }

  @media (max-width: 768px) {
    .foldable-container { padding: 0 16px; font-size:0.95rem; }
    .read-more-button { font-size:1rem; }
  }
  @media (max-width: 480px) {
    .foldable-container { margin:40px auto; }
    .foldable-content p { margin-bottom:12px; }
  }

  #t1 th, #t1 td {
    border-bottom:1px solid #e5e7eb;
  }
  #t1 td a {
    color:#0d6efd;
    text-decoration:none;
    font-weight:500;
    transition:color 0.3s;
  }
  #t1 td a:hover {
    color:#2563eb;
    text-decoration:underline;
  }
  #t1 tbody tr:hover {
    background:#f1f5f9;
    transition:background 0.3s;
  }

  /* ======= Responsive ======= */
  @media (max-width: 992px) {
    #t1 th, #t1 td { padding:10px 6px; font-size:0.95rem; }
  }
  @media (max-width: 768px) {
    #t1 thead { display:none; }
    #t1 tr { display:block; margin-bottom:12px; border-radius:10px; background:#fff; box-shadow:0 2px 8px rgba(0,0,0,0.05); }
    #t1 td { display:flex; justify-content:space-between; padding:10px 12px; border-bottom:1px solid #eee; font-size:0.9rem; }
    #t1 td::before {
      content: attr(data-label);
      font-weight:600;
      color:#1e293b;
      text-transform:capitalize;
    }
  }

/* 全局样式 */
.products-section {
  padding: 60px 20px;
  background-color: #f4f6f8;
  font-family: 'Poppins', sans-serif;
}

.products-container {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  max-width: 1400px;
  margin: 0 auto;
  justify-content: space-between;
}

.product-card {
  background-color: #fff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  flex: 1 1 calc(25% - 30px);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s, box-shadow 0.3s;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 28px rgba(0,0,0,0.12);
}

.product-image img {
  width: 100%;

  object-fit: cover;
  transition: transform 0.4s;
}

.product-card:hover .product-image img {
  transform: scale(1.05);
}

.product-content {
  padding: 20px;
  flex-grow: 1;
}

.product-content h3 {
  font-size: 18px;
  margin-bottom: 12px;
  font-weight: 600;
  line-height: 1.4;
}

.product-content h3 a {
  text-decoration: none;
  color: #0f172a;
}

.product-content h3 a:hover {
  color: #2563eb;
}

.product-specs {
  list-style: none;
  padding: 0;
  margin: 0 0 16px 0;
  font-size: 14px;
  color: #334155;
  line-height: 1.6;
}

.product-specs .highlight {
  color: #2563eb;
  font-weight: 600;
}

.product-buttons {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn {
  padding: 8px 18px;
  border-radius: 8px;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.3s;
}

.btn-primary {
  background: linear-gradient(90deg,#2563eb,#1e40af);
  color: #fff;
}

.btn-primary:hover {
  background: linear-gradient(90deg,#1d4ed8,#1e3a8a);
}

.btn-secondary {
  border: 1px solid #2563eb;
  color: #2563eb;
}

.btn-secondary:hover {
  background: #2563eb;
  color: #fff;
}

/* 响应式 */
@media (max-width: 1350px) {
  .product-card {
    flex: 1 1 calc(33.333% - 30px);
  }
}
@media (max-width: 768px) {
  .product-card {
    flex: 1 1 calc(50% - 20px);
  }
  .product-image img {
    height: 200px;
  }
}
@media (max-width: 480px) {
  .product-card {
    flex: 1 1 100%;
  }
  .product-content {
    padding: 16px;
  }
  .product-content h3 {
    font-size: 16px;
  }
}