.clean-blog-area .section-sub-title {
  position: relative;
  display: inline-block;
}

.clean-blog-area .section-sub-title::before {
  position: absolute;
  content: "";
  height: 3px;
  width: 50px;
  background: var(--color-second);
  left: -54px;
  top: 8px;
}

.clean-blog-area .section-sub-title::after {
  position: absolute;
  content: "";
  height: 3px;
  width: 50px;
  background: var(--color-second);
  right: -56px;
  top: 8px;
}

.clean-blog-area .section-sub-title h4 {
  font-size: 17px;
  color: var(--color-second);
  font-weight: 600;
  margin-bottom: 19px;
}

.clean-blog-area .section-main-title {
  margin-bottom: 13px;
}

.clean-blog-area .section-main-title h2 {
  font-size: 44px;
  color: var(--color-second);
  font-weight: 600;
}

.clean-blog-area .section-discription {
  width: 44%;
  margin: auto;
  margin-bottom: 60px;
}

.clean-blog-area .section-discription p {
  color: #616161;
  font-weight: 400;
  opacity: 0.800;
  font-size: 16px;
  line-height: 24px;
  word-wrap: break-word;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  /* 控制显示的行数 */
  -webkit-box-orient: vertical;
}

.clean-blog-area  {
  padding: 106px 0 108px;
}

.clean-blog-area .blog-single-box {
  background-color: #ffffff;
  filter: drop-shadow(0 0 125px rgba(0, 0, 0, 0.1));
  padding: 27px 32px 22px;
  margin-bottom: 40px;
  height: calc(100% - 40px);
}

.clean-blog-area .blog-thumb {
  position: relative;
  overflow: hidden;
}

.clean-blog-area .blog-thumb::before {
  position: absolute;
  content: "";
  top: 0;
  left: 0;
  width: 0%;
  right: 0;
  bottom: 0;
  background: var(--color-second);
  opacity: 0.702;
  transform: translateY(100%);
  transition: .5s;
}

.clean-blog-area .blog-single-box:hover .blog-thumb::before {
  width: 100%;
  transform: translateY(0);
}

.clean-blog-area .blog-thumb img {
  width: 100%;
  aspect-ratio: 3 / 2;
}

.clean-blog-area .blog-icon {
  position: absolute;
  top: 50%;
  left: 43%;
  right: 58%;
  transform: translate(50%, -50%);
  margin: auto;
}

.clean-blog-area .blog-icon i {
  font-size: 16px;
  background: var(--color-primary);
  border: 1px solid var(--color-primary);
  height: 50px;
  color: #000;
  width: 50px;
  display: inline-block;
  text-align: center;
  line-height: 50px;
  border-radius: 100%;
  opacity: 0;
  transition: .5s;
}

.clean-blog-area .blog-icon i:hover {
  border: 1px solid var(--color-primary);
  background: inherit;
  color: #ffff;
}

.clean-blog-area .blog-single-box:hover .blog-icon i {
  opacity: 1;
}

.clean-blog-area .blog-content-list {
  padding: 26px 0 8px;
}

.clean-blog-area .blog-content-list ul {
  list-style: none;
}

.clean-blog-area .blog-content-list ul li {
  display: inline-block;
  margin-right: 16px;
  position: relative;
  color: var(--color-second);
}

.clean-blog-area .blog-content-list ul li::before {
  position: absolute;
  content: "";
  height: 12px;
  width: 2px;
  background: var(--color-primary);
  left: -9px;
  top: 6px;
}

.clean-blog-area .blog-content-list ul li.list::before {
  display: none;
}

.clean-blog-area .blog-content-list ul li a {
  text-decoration: none;
  display: inline-block;
  font-size: 14px;
  transition: .5s;
}

.clean-blog-area .blog-content-list ul li a:hover {
  color: var(--color-primary);
}

.clean-blog-area .blog-content-list ul li a i {
  margin-right: 5px;
  color: var(--color-primary);
}

.clean-blog-area .blog-content-title {
  padding-bottom: 17px;
}

.clean-blog-area .blog-content-title h3 a {
  display: inline-block;
  text-decoration: none;
  font-size: 24px;
  font-weight: 600;
  line-height: 32px;
  color: var(--color-second);
}

.clean-blog-area .blog-content-title h3 a:hover {
  color: var(--color-primary);
}

.clean-blog-area .blog-button a {
  display: inline-block;
  text-decoration: none;
  font-size: 16px;
  font-weight: 400;
  color: var(--color-second);
}

.clean-blog-area .blog-button a:hover {
  color: var(--color-primary);
}

@media (min-width: 768px) and (max-width: 991px) {
  .clean-blog-area .section-main-title h2 {
    font-size: 40px;
  }

  .clean-blog-area .section-discription {
    width: 90%;
  }

  .clean-blog-area {
    padding: 80px 0 30px;
  }

  .clean-blog-area .blog-single-box {
    margin-bottom: 40px;
  }

  .clean-blog-area .blog-content-title h3 a {
    font-size: 22px;
  }

}

@media only screen and (min-width: 220px) and (max-width: 767px) {
  .clean-blog-area  {
    padding: 78px 0 62px;
  }

  .clean-blog-area .section-discription {
    width: 90%;
  }
}

@media only screen and (min-width: 220px) and (max-width: 599px) {
  .clean-blog-area .section-main-title h2 {
    font-size: 26px;
  }

  .clean-blog-area .section-main-title.about h2 {
    font-size: 26px;
    line-height: 42px;
  }

  .clean-blog-area .section-discription {
    width: 100%;
  }

  .clean-blog-area .section-discription.service p {
    font-size: 14px;
  }

}