.header {
  border-bottom: 1px solid #eee;
}

.first-section {
  font-family: Arial;
  padding: 0.3rem;
}
.first-section .first-content {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}
.first-section .first-content .img-box {
  overflow: hidden;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  width: 100%;
}
.first-section .first-content .img-box img {
  width: 100%;
  height: auto;
  display: block;
  transition: all 0.3s ease-in-out;
}
.first-section .first-content .img-box img:hover {
  transform: scale(1.05);
}
.first-section .first-content .text-box {
  background-color: #f0f2fd;
  padding: 0.3rem 0.3em 0.4em;
}
.first-section .first-content .text-box h1 {
  font-weight: 700;
  color: #333;
  font-size: 0.36rem;
  line-height: 0.42rem;
}
.first-section .first-content .text-box p {
  color: #666;
  font-size: 0.28rem;
  line-height: 0.42rem;
  margin-top: 0.2rem;
}
.first-section .first-content .text-box .btn-group {
  margin-top: 0.3rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}
.first-section .first-content .text-box .btn-group a {
  display: block;
  background: #e94609;
  color: #fff;
  text-decoration: none;
  transition: all 0.3s ease-in-out;
  background-size: 200% auto;
  font-size: 0.28rem;
  line-height: 0.42rem;
  padding: 0.1rem 0;
  width: 47%;
  text-align: center;
}
.first-section .first-content .text-box .btn-group a:hover {
  background-image: linear-gradient(to right, #e94609 20%, #f2d4ca 50%, #e94609 100%);
  background-position: center right;
}

.second-section {
  font-family: Arial;
  padding: 0.3rem 0.3rem 0.2rem;
}
.second-section .section-title {
  font-weight: 700;
  text-align: center;
  color: #3d4457;
  font-size: 0.36rem;
  line-height: 0.42rem;
}
.second-section .section-content {
  margin-top: 0.35rem;
}
.second-section .section-content p {
  color: #757575;
  font-size: 0.28rem;
  line-height: 0.42rem;
}

.fourth-section .product-param {
  overflow-x: auto;
  margin-top: 0.35rem;
}
.fourth-section .product-param table {
  width: 100%;
  border-collapse: collapse;
  position: relative;
}
.fourth-section .product-param table tr {
  background: #fff;
}
.fourth-section .product-param table tr:hover {
  background: #d6d5d5;
}
.fourth-section .product-param table tr td {
  border: 1px solid #edecec;
  text-align: center;
  color: #666;
  font-size: 0.22rem;
  line-height: 1.5;
  padding: 0.1rem 0.15rem;
}
.fourth-section .product-param table tr:nth-child(2n+1) {
  background: #e3e3e3 !important;
}
.fourth-section .product-param table tr:first-child {
  background: #3d4457 !important;
}
.fourth-section .product-param table tr:first-child td {
  color: #fff;
}
.fourth-section .product-param table tr:first-child:hover {
  background: #3d4457 !important;
}
.fourth-section .product-param table tr:first-child:hover td {
  color: #fff;
}


@media screen and (max-width: 441px) { 
  .first-section .first-content .text-box .btn-group a {
    width: 48%;
    font-size: 0.24rem;
  }
}