.sidebar {
    display: none;
	
}
.site-nav ul {
  width: 100%;
  padding-left: 0;
  margin-top: 15px;
  margin-bottom: 15px;
}

.site-nav ul li {
  position: relative;
  margin: 20px auto;
  padding-left: 0;
  list-style: none;
}

.site-nav ul li a {
  display: block;
      color: #666;
}

.site-nav .active a {
  color: #4990E2;
}
.site-info {
  text-align: center;
  border-bottom: 1px solid #979797;
  display: flex;
  flex-direction: column;
  align-items: center;
      color: #333;
}

.site-info .site-logo {
  width: 120px;
  padding: 10px;
}

.site-info .site-logo img {
  width: 100%;
  object-fit: contain;
      border-radius: 50%;
}

.site-info .site-name {
  margin-top: 10px;
  margin-bottom: 30px;
  
}
.nav-toggle {
  display: none;
  height: 40px;
  box-sizing: border-box;
  position: fixed;
  width: 100%;
  padding-top: 2px;
  padding-left: 20px;
  z-index: 2;
  background-color: white;
}

.nav-toggle button {
  outline: none;
  margin-top: 2px;
  padding: 9px 10px;
  background: transparent;
  border: none;
  user-select: none;
}

.nav-toggle button .btn-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: #666666;
  border-radius: 1px;
}

.nav-toggle button .btn-bar+.btn-bar {
  margin-top: 4px;
}

.show-block {
  display: block !important;
}

.show-block {
  animation: showBlock 0.4s forwards;
  display: block !important;
}
button, input, optgroup, option, select, textarea {
    font-family: inherit;
    font-size: inherit;
    font-style: inherit;
    font-weight: inherit;
    outline: 0;
    transition: all .3s;
    -webkit-transition: all .3s;
    box-sizing: border-box;
}
@media screen and (max-width: 680px) {
	.sidebar {
    display: block;
}
  .nav-toggle {
    display: block;
  }
  .site-banner {
    height: 260px;
  }
  .site-nav {
    display: none;
    position: fixed;
    left: 0;
    top: 40px;
    background-color: white;
    width: 100%;
    border-bottom: 1px solid #CCCCCC;
    border-top: 1px solid #CCCCCC;
    height: auto;
    max-height: calc(100% - 40px);
    overflow-y: auto;
  }
.top-searchdiv {
    width: auto;
    position: relative;
    font-size: 14px;
    display: inline-block;
    margin-top: 13px;
    margin-left: 30px;
    margin-right: 30px;
}
  .site-nav ul {
    box-sizing: border-box;display: grid;
  }
.post-content iframe {
    width: 100%;
    height: 53vw;
}
  .site-nav ul li {
        padding: 5px 10px;
    margin: 5px 10px;
  }
  
    .site-nav ul .nav-xz a{
  color: #fdfdfd;
  }
    .site-nav ul a {
 padding: 0px 15px;
    margin: 0;
    list-style: none;
	    display: block;
    color: #666;
  }
  .main-right-nav-but {
    margin: 5px 5px;
    padding: 6px 10px;
    text-align: center;
    font-size: 16px;
}
  .site-nav .sub-menu {
    margin: 0;
  }
.site-container {
    flex-direction: column;
    flex-wrap: nowrap;
}

  .sidebar {
    width: 100%;
   margin-top: 40px;
  margin-bottom: 15px;
  }

  .toc-article {
    display: none;
  }
  .post-item {
    flex-direction: column;
  }

}

.blog-page-button{
    font-size: 14px;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    margin-top: 10px;
    padding: 15px 0;
    border-bottom: 1px dashed #eee;
}
.blog-page-button .blog-page{
    width: 45%;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.blog-page-button .prev-blog{
    text-align:left;
}
.blog-page-button .next-blog{
    text-align:right;
}

.blog-page-button a {
    color: #444;
}