.article-banner {
  margin-top: 20px;
}

.article-banner img {
  display: block;
  width: 100%;
  max-height: 345px;
  object-fit: cover;
}

@media (min-width: 1360px) {
  .article-banner img {
    width: calc(100% + 100vw - 1360px);
    margin-left: calc((100vw - 1200px) / 2 * -1 + 80px);
  }
}

.article-body {
  padding: 60px 0;
}

.article-body__inner {
  display: flex;
  align-items: flex-start;
  gap: 60px;
}

.article-toc {
  position: sticky;
  top: 130px;
  flex: 0 0 285px;
  border: 1px solid var(--accent);
}

.article-toc__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 20px 24px;
  cursor: pointer;
  background: none;
  border: none;
}

.article-toc__arrow {
  display: none;
}

.article-toc__list li {
  padding: 20px 24px;
  border-top: 1px solid var(--accent);
  position: relative;
}

.article-toc__list li::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 100%;
  transform: translateY(50%); 
  

  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  border-left: 5px solid #b38642; 
}

.article-toc__list li::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: calc(100%);
  transform: translateY(50%); 
  

  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  border-right: 5px solid #b38642;
}

.article-toc__list a {
  transition: color 0.2s ease;
}

.article-toc__list a:hover {
  color: var(--accent);
}

.article-content h2 {
  scroll-margin-top: 100px;
}

.article-conclusion {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 69px 150px;
  margin-top: 40px;
  color: var(--surface);
  background: var(--secondary);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 40px 100%, 0% 55%);
  position: relative;
}

.article-conclusion::before,
.article-conclusion::after {
  display: block;
  position: absolute;
  right: 10px;
  content: '';
  width: calc(100% - 20px);
  max-width: 1091px;
  height: 1px;
  background-color: var(--accent);
}

.article-conclusion::before {
  top: 25px;
}

.article-conclusion::after {
  bottom: 25px;
  width: calc(100% - 55px);
}

.article-conclusion__badge {
  color: var(--accent);
  text-transform: uppercase;
}

.article-conclusion__title {
  color: var(--surface);
}

.article-conclusion__description {
  color: color-mix(in srgb, var(--surface) 85%, transparent);
}

@media (max-width: 1080px) {
  .article-body__inner {
    flex-direction: column;
    gap: 60px;
  }

  .article-toc {
    position: static;
    flex: none;
    width: 100%;
  }

  .article-banner {
    margin-top: 40px;
  }

  .article-conclusion {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 28px 20px 57px;
    margin-top: 40px;
    color: var(--surface);
    background: var(--secondary);
    clip-path: polygon(0 0, 100% 0, 100% 100%, 25px 100%, 0% calc(100% - 50px));
    position: relative;
  }

  .article-conclusion::before,
  .article-conclusion::after {
    display: block;
    position: absolute;
    right: 10px;
    content: '';
    width: calc(100% - 20px);
    max-width: 1091px;
    height: 1px;
    background-color: var(--accent);
  }

  .article-conclusion::before {
    top: 10px;
  }

  .article-conclusion::after {
    bottom: 10px;
    width: calc(100% - 40px);
  }
}

@media (max-width: 768px) {
  .article-body {
    padding: 22px 0;
  }

  .article-toc__header {
    padding: 22px 10px;
  }

  .article-toc__arrow {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    transition: transform 0.2s ease;
  }

  .article-toc__list li {
    padding: 20px 10px;
  }

  .article-toc--open .article-toc__arrow {
    transform: rotate(-180deg);
  }

  .article-toc__list {
    display: none;
  }

  .article-toc--open .article-toc__list {
    display: block;
  }

  .article-conclusion {
    padding: 28px 10px 57px;
    gap: 10px;
  }
}