.page_cases {
  padding-bottom: 9.9rem;
}
.blog_nav {
  background-color: var(--secondary);
}
section.blog_nav > img {
  height: auto;
}
section.blog_nav > img:nth-of-type(2) {
  top: unset;
  bottom: 0;
}
.blog_nav .flex {
  min-height: 75rem;
  flex-direction: column;
  padding: 16.4rem 0 20rem;
}
.blog_nav p {
  max-width: 97rem;
  margin: 1.8rem auto 0;
}
.blog_nav .nav {
  margin-top: 4.5rem;
}
.blog_nav .nav .nav_list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
}
.blog_nav .nav .nav_item {
  display: block;
  height: 100%;
  cursor: pointer;
  text-align: center;
  transition: all 0.3s;
  border-radius: 100px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  color: #fff;
  font-size: 2.2rem;
  font-weight: 700;
  min-width: 21rem;
  line-height: 6.9rem;
  padding: 0 2rem;
}
.blog_nav .nav .nav_item.active,
.blog_nav .nav .nav_item:hover {
  background-color: var(--primary);
  border-color: var(--primary);
}
.blog_nav .mask_img {
  position: absolute;
  width: 60.57143%;
  height: auto;
  left: -30.857%;
  top: -10.6667%;
  pointer-events: none;
}
.toplevel_page_sytech_fronteditor .blog_main .list {
  margin-top: 0;
}
.blog_main {
  padding: 10rem 0 10.7rem;
}
.blog_main .list {
  margin-top: -28.9rem;
  position: relative;
  z-index: 2;
}
.blog_main .list ul {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.9rem 2.07143%;
}
.blog_main .navigation_box {
  margin-top: 5.3rem;
}
@media screen and (max-width: 768px) {
  .page_cases {
    padding-bottom: 50px;
  }
  .blog_nav .flex {
    min-height: unset;
    padding: 70px 0 90px;
  }
  .blog_nav .nav {
    margin-top: 30px;
  }
  .blog_nav .nav .nav_list {
    width: calc(100% + 60px);
    margin: 0 -30px;
    padding: 0 30px;
    flex-wrap: nowrap;
    gap: 20px;
    white-space: nowrap;
    overflow-x: auto;
    justify-content: unset;
  }
  .blog_nav .nav .nav_list li:first-child {
    margin-left: auto;
  }
  .blog_nav .nav .nav_list li:last-child {
    margin-right: auto;
  }
  .blog_nav .nav .nav_list::-webkit-scrollbar {
    display: none;
  }
  .blog_nav .nav .nav_item {
    font-size: 14px;
    line-height: 40px;
    padding: 0 20px;
    min-width: 120px;
  }
  .blog_nav .mask_img {
    width: 50%;
  }
  .blog_main {
    padding: 50px 0;
  }
  .blog_main .list {
    margin-top: -110px;
  }
  .blog_main .list ul {
    grid-template-columns: repeat(auto-fill, minmax(min(250px, 100%), 1fr));
    gap: 30px 16px;
  }
  .blog_main .navigation_box {
    margin-top: 40px;
  }
}
@media screen and (max-width: 576px) {
  .blog_nav .nav .nav_list {
    width: calc(100% + 40px);
    margin: 0 -20px;
    padding: 0 20px;
  }
  .blog_nav .mask_img {
    width: 70%;
    max-width: 260px;
  }
}