.product_preview {
  width: 120%;
  height: 150px;
  margin-bottom: 50px;
  clear: both;
}
.page_box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  max-width: var(--view-width);
  margin: 0 auto;
}
.product_cover {
  width: 150px;
  height: 150px;
  float: left;
}

.product_cover img {
  width: 100%;
  height: 100%;
}

.product_title_box {
  width: 460px;
  height: 150px;
  line-height: 30px;
  float: left;
  margin: 0 20px;
  padding: 0 0 0 10px;
  border: solid 1px #fff;
  overflow: hidden;
}

.product_title_box:hover {
  border: solid 1px #c3c3c3;
  box-shadow: 5px 5px 5px #c3c3c3;
  border-width: 90%;
  transition: all 300ms ease-in-out;
}

.product_title a {
  font-size: 20px;
  font-weight: bold;
}

.product_container {
  width: 100%;
  height: auto;
  /* background: blue; */
}

.product_master {
  width: 100%;
  height: auto;
  margin-top: 30px;
  display: flex;
  justify-content: space-between;
}

.product_master_left {
  text-align: center;
  float: left;
}

.product_master_left img:not(.quote_img) {
  width: 270px;
  height: 270px;
  margin: 0 auto;
  margin-bottom: 20px;
}

.product_master_right {
  width: 70%;
  margin-left: 5%;
  padding-right: 20px;
  float: left;
}

.product_master_content h2 {
  font-size: 24px;
}

.product_master_content p {
  font-size: 18px;
}

.product_master_content a {
  color: #000000;
  text-decoration: none;
  font-weight: bold;
}

.product_master_bottom {
  width: 900px;
}

.product_master_bottom h5 {
  font-size: 20px;
  font-weight: normal;
  margin: 20px 0;
}

.product_master_bottom p img {
  width: 100%;
}

.product_tree {
  width: 200px;
  height: 200px;
  float: right;
}

.product_tree a {
  text-decoration: none;
  color: #000;
}

.product_tree h2 {
  font-size: 22px;
}

.product_tree ul {
  margin-top: 20px;
}

.product_tree ul > li {
  display: block;
  width: 100%;
  min-height: 30px;
  line-height: 30px;
  margin-top: 10px;
  border-bottom: solid 1px #d9d9d9;
}

.product_tree ul > li a {
  color: #a2a2a2;
}

.product_tree ul > li:hover {
  border-bottom: solid 1px var(--first-color);
}

.product_master_bottom .product-module-banner {
  width: calc(100% - 20px);
  height: 50px;
  line-height: 50px;
  color: #fff;
  font-size: 22px;
  font-weight: bold;
  background: var(--first-color);
  margin-top: 20px;
  padding-left: 20px;
}

.product_master_bottom .product-module-sub-banner {
  width: 100%;
  height: 50px;
  line-height: 48px;
  color: #000;
  font-size: 19px;
  font-weight: bold;
  background: #9bc2e6;
  margin-top: 5px;
}

.product_master_bottom .product-module-sub-banner div {
  width: 33%;
  text-align: center;
  float: left;
  border-bottom: solid 2px #9bc2e6;
}

.product_master_bottom .product-module-sub-banner div:hover {
  cursor: pointer;
  border-bottom: solid 2px var(--first-color);
  box-shadow: 5px 5px 5px var(--first-color) !important;
  animation-delay: 1s;
  transition: all 300ms ease-in-out;
}
.pager_box {
  width: 65%;
  height: 50px;
  margin: 20px auto;
}
.page_box:not(#page1) {
  display: none;
}
.pager_box_w100 {
  width: 100%;
}

.pager_box .pager {
  float: right;
}

.pager_box .pager ul > li {
  display: block;
  float: left;
  width: 40px;
  height: 40px;
  margin: 0 5px;
  text-align: center;
  line-height: 40px;
  border: solid 1px #676767;
  color: #676767;
  cursor: pointer;
}

.pager_box .pager .current_page {
  color: #fff;
  background: var(--first-color);
  border: solid 1px var(--first-color);
}

.pager_box .pager ul > li:hover {
  color: #fff;
  background: var(--first-color);
  border: solid 1px var(--first-color);
}