body,html{
  margin: 0;
  padding: 0;
}
img {
  width: 100%;
  height: auto;
}
img:hover {
  transition: all 0.3s;
  transform: scale(1.03);
}
ul ,li {
  list-style: none;
  margin: 0;
  padding: 0;
}
a {
  text-decoration: none;
  color: inherit;
}
.nav {
  display: flex;
  justify-content: space-between;
  padding: 20px 10px;
}
.nav .logo {
  width: 200px;
  height: auto;
}
.nav .item {
  width: 50%;
}
.nav .item ul{
  display: grid;
  grid-template-columns: repeat(5, 1fr);
}
.nav .item li{
  text-align: center;
}
.nav .item a{
  font-size: 22px;
  font-family: "Microsoft YaHei UI";
  color: #747474;
  font-weight: 600;
  text-align: center;
}
/*.nav .item a:hover{*/
/*  color: #203167;*/
/*}*/
.body {
  max-width: 1600px;
  margin: 0 auto;
}
.body .mode01 {
  margin-top: 30px;
}
.body .mode02 {
  margin-top: 30px;
}
.body .mode03 {
  margin-top: 30px;
}
.body .mode04 {
  margin-top: 40px;
}
.body .title{
  font-size: 40px;
  font-weight: bold;
}
.title .text {
  position: relative;
  text-align: center;
}
.text svg,
.text span {
  vertical-align: middle;
}
.body .article-list1 {
  display: flex;
  margin-top: 20px;
}
.body .article-list2 {
  margin-top: 20px;
}
.body .article-list1 .rt-item {
  width: 50%;
  /* height: 300px; */
}
.body .rt-item li{
  width: 100%;
  height: calc(300px / 5);
  background-color: #f5f5f5;
  border-bottom: 1px dashed #595858;
  overflow: hidden;
}
.body .rt-item a{
  line-height: calc(300px / 5);
}
.body .article-list1 .lt-item {
  width: 50%;
  height: 300px;
  overflow: hidden;
}
.body .lt-item{
  padding: 0 20px;
}
.article-list2 {
  display: grid;
  gap: 10px;
  width: 100%;
}
.article-list2 .info {
  display: flex;
  width: 98%;
  padding: 10px;
  background-color: #2f598d;
}
.article-list2 .info .rt {
  width: 70%;
  /* height: 257px; */
  padding: 0 60px 0 20px;
  background-color: #2f598d;
  color: #ffffff;
}
.info .art-content p{
  font-size: 14px;
  font-family: sans-serif;
}
/*.article-list2 .info:nth-child(2n-1) {*/
/*  padding: 0 10px;*/
/*}*/
/*.article-list2 .info:nth-child(2n) {*/
/*  padding: 0 10px;*/
/*}*/
.article-list2 .info .rt:hover{
  background-color: #203167;
  color: #ffffff;
}
.article-list2 .info .lt {
  width: 30%;
}

.art-title {
  font-size: 20px;
  font-weight: bold;
}
.art-more {
  position: relative;
  right: 0;
  bottom: 0;
}

.body .article-list3 ul{
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(600px, 1fr));
}
.body .article-list3 li{
  padding: 0 10px 0 0 ;
}
.footer {
  padding: 15px 0;
  background-color: #2f598d;
  color: #ffffff;
}
.footer p {
  text-align: center;
}

.article-list3 .art-content {
  padding: 5px;
}
.article-list3 .art-content:hover {
  box-shadow: 0 3px 3px 0 rgba(105, 105, 105, 0.5);
  transition: all 0.3s;
  transform: scale(1.01);
}

/* 移动端导航样式 */
.mobile-nav {
  display: none;
  background-color: #fff;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  position: relative;
  z-index: 1000;
}

.nav-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 15px;
}

.nav-header .logo img {
  height: 40px;
}

.menu-toggle {
  display: flex;
  flex-direction: column;
  cursor: pointer;
}

.menu-toggle span {
  width: 25px;
  height: 3px;
  background-color: #13227a;
  margin: 3px 0;
  transition: 0.3s;
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(-45deg) translate(-6px, 6px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(45deg) translate(-6px, -6px);
}

.nav-menu {
  display: none;
  background-color: #f8f9fa;
}

.nav-menu.active {
  display: block;
}

.nav-menu ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-menu li {
  border-bottom: 1px solid #eaeaea;
}

.nav-menu li:last-child {
  border-bottom: none;
}

.nav-menu a {
  display: block;
  padding: 15px 20px;
  text-decoration: none;
  color: #13227a;
  font-size: 16px;
  transition: background-color 0.3s;
}

.nav-menu a:hover {
  background-color: #e9ecef;
}

@media screen  and (max-width:1630px) {
  .body {
    margin: 0 10px;
  }
}
/* 在小屏幕设备上显示移动端导航 */
@media screen and (max-width: 880px) {
  .nav { /* 原PC端导航 */
    display: none;
  }
  
  .mobile-nav {
    display: block;
  }
  .mode01 {
    padding: 0 15px;
  }
  
  .mode01 .title {
    margin-bottom: 20px;
  }
  
  .mode01 .title .text {
    font-size: 18px;
  }
  
  .mode01 .title .icon {
    width: 30px;
    height: 30px;
  }
  
  .article-list1 {
    display: flex;
    flex-direction: column;
  }
  
  .body .article-list1 .rt-item {
    width: 100%;
    margin-bottom: 15px;
  }
  
  .rt-item ul {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
  }
  
  .rt-item li {
    width: calc(50% - 5px);
    margin: 0;
  }
  
  .rt-item a {
    display: block;
    padding: 10px;
    background-color: #f5f5f5;
    border-radius: 5px;
    font-size: 14px;
    transition: all 0.3s;
  }
  
  .rt-item a:hover,
  .rt-item a.active {
    background-color: #13227a;
    color: #fff;
  }
  
  .body .article-list1 .lt-item {
    width: 100%;
    padding: 0;
  }
  
  .lt-item .info {
    display: none;
    padding: 15px;
    background-color: #f9f9f9;
    border-radius: 8px;
    margin-bottom: 15px;
  }
  
  .lt-item .info.active {
    display: block;
  }
  
  .lt-item .info p {
    margin: 8px 0;
    font-size: 14px;
    line-height: 1.6;
  }
  
  .lt-item .info p:first-child {
    font-size: 16px;
    font-weight: bold;
    color: #13227a;
  }

  .mode02 {
    padding: 0 15px;
  }
  
  .mode02 .title {
    margin-bottom: 20px !important;
  }
  
  .mode02 .title .text {
    font-size: 18px;
  }
  
  .mode02 .title .icon {
    width: 30px;
    height: 30px;
  }
  
  .article-list2 .info {
    display: flex;
    flex-direction: column;
    margin-bottom: 20px;
    padding: 15px;
    background-color: #f9f9f9;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
  }
  
  .article-list2 .info:nth-child(even) {
    flex-direction: column;
  }
  
  .article-list2 .info .lt {
    order: -1;
    margin-bottom: 15px;
    width: 100%;
  }
  
  .article-list2 .info .rt {
    flex: 1;
    width: 100%;
    padding: 0;
    background-color: #ffffff;
    color: #000;
  }
  
  .article-list2 .info .img {
    text-align: center;
  }
  
  .article-list2 .info .img img {
    max-width: 100%;
    height: auto;
    border-radius: 5px;
  }
  
  .article-list2 .info .art-title p {
    font-size: 16px;
    font-weight: bold;
    color: #13227a;
    margin: 0 0 10px 0;
  }
  
  .article-list2 .info .art-content p {
    font-size: 14px;
    line-height: 1.6;
    color: #666;
    margin: 0 0 15px 0;
  }
  
  .article-list2 .info .art-more {
    text-align: right;
  }
  
  .article-list2 .info .art-more a {
    display: inline-block;
    padding: 8px 15px;
    background-color: #13227a;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    font-size: 14px;
    transition: background-color 0.3s;
  }
  
  .article-list2 .info .art-more a:hover {
    background-color: #0f1a5c;
  }
}