ul{
  margin-top: 0;
  margin-bottom: 0;
}

.container {
  display: grid;
  grid-template-columns: 1fr 1024px 1fr;
  grid-template-rows: 100px 1fr 64px;
  gap: 0px 0px;
  grid-auto-flow: row;
  grid-template-areas:
    "top top top"
    "sidebar-left main sidebar-right"
    "footer footer footer";
}

.main {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr;
  grid-template-rows: 64px 1fr;
  gap: 0px 0px;
  grid-template-areas:
    "logo logo logo . . . . nav nav nav nav nav nav nav nav"
    "item1 item1 item1 item1 item1 item1 item2 item2 item2 item2 item2 item2 item2 item2 item2"
    ". . . main-box main-box main-box main-box main-box main-box main-box main-box main-box main-box main-box .";
  grid-area: main;
  grid-area: 2 / 2 / 3 / 3;
}

.main-box {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: 56px 1fr 56px;
  gap: 0px 0px;
  grid-template-areas:
    "."
    "article"
    ".";
  grid-area: 2 / 4 / 3 / 15;
  z-index: 100;
}

.article {
  display: grid;
  grid-template-columns: 30px 1fr 30px;
  grid-template-rows: 30px 1fr 30px;
  gap: 0px 0px;
  grid-template-areas:
    ". . ."
    ". art_list ."
    ". . .";
  margin-top: 40px;
  margin-bottom: 30px;
  background: #fff;
  border: 10px solid #57a5f8;
  box-shadow: 10px 10px 20px rgb(0 29 84 / 30%);
  grid-area: article;
}

.hhr {
  grid-area: 1 / 1 / 2 / 2;
  align-self: center;
  border-bottom: 1px dashed #d4cfcf;
  height: 2px;
  width: 100%;
}

.art_list {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: 1fr 40px;
  gap: 0px 0px;
  grid-auto-flow: row;
  grid-template-areas:
    "listbox"
    "pagin";
  grid-area: art_list;
}

.casespec{
  text-decoration: none;
}

.case_img {
  border: 1px solid #f0f0f0;
  padding: 4px;
}

.case_title {
  padding: 4px;
  font-weight: 600;
  color: #3e3e3e;
}

a img:hover {
  -webkit-transition: all 0.5s ease-in-out 0.1s;
  -moz-transition: all 0.5s ease-in-out 0.1s;
  -ms-transition: all 0.5s ease-in-out 0.1s;
  -o-transition: all 0.5s ease-in-out 0.1s;
  transition: all 0.5s ease-in-out 0.1s;
  transform: scale(1.1, 1.1);
}

.listbox {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 16px 10px;
  grid-template-areas:
      ". . . "
      ". . .";
  grid-area: listbox;
  padding-bottom: 16px;
}


.item1 {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: 56px 1fr 56px;
  gap: 0px 0px;
  grid-auto-flow: row;
  grid-template-areas:
    "."
    "piece1"
    ".";
  grid-area: item1;
}

.piece1 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr;
  grid-template-rows: 1fr 1fr 1fr 1fr 1fr 1fr;
  gap: 0px 0px;
  grid-auto-flow: row;
  grid-template-areas:
    ". . . . . . . . . . . . ."
    ". . letter1 letter1 letter1 . . . . . . . ."
    ". . letter1 letter1 letter1 . . . . . . . ."
    ". letter2 letter2 letter2 . . . . . . . . ."
    ". letter2 letter2 letter2 . . . . . . . . ."
    ". . . . . . . . . . . . .";
  grid-area: piece1;
  background-color: #1869ff;
  min-height: 570px;
  min-width: 400px;
}

.letter1 {
  grid-area: letter1;
}

.letter2 {
  align-self: center;
  grid-area: letter2;
}

.item2 {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: 56px 1fr 56px;
  gap: 0px 0px;
  grid-auto-flow: row;
  grid-template-areas:
    "."
    "piece2"
    ".";
  grid-area: item2;
}

.piece2 {
  background: url(../images/dec-point2.png) repeat;
  grid-area: piece2;
}

.case_img {
  border: 1px solid #f0f0f0;
  padding: 4px;
}

.case_img img {  
  max-width: 100%; /* 确保图片宽度不会超过其容器的宽度 */  
  height: auto; /* 保持图片的原始高度 */  
  object-fit: contain; /* 保持图片的长宽比，同时填充元素的整个内容框 */  
}