.contact-banner {
  padding: 52px 0 40px;
  color: #fff;
  background: #1f2d3d url('/imgs/index-bj1.jpg') center 42% / cover no-repeat;
  position: relative;
}

.contact-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(22, 35, 48, .72);
}

.contact-banner .container {
  position: relative;
}

.contact-banner p {
  margin: 0 0 8px;
  color: #b9dfce;
  font-size: 13px;
  font-weight: 700;
}

.contact-banner h1 {
  max-width: 720px;
  margin: 0;
  font-size: 36px;
  line-height: 1.3;
  font-weight: 800;
}

.contact-docs {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 48px;
  padding-top: 48px;
  padding-bottom: 72px;
}

.contact-toc {
  position: sticky;
  top: 96px;
  align-self: start;
  border-right: 1px solid #e5e8eb;
}

.contact-toc__title {
  margin-bottom: 12px;
  color: #1f2329;
  font-weight: 800;
}

.contact-toc nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.contact-toc a {
  display: block;
  padding: 9px 16px 9px 0;
  color: #606266;
  text-decoration: none;
}

.contact-toc a:hover,
.contact-toc a:focus-visible {
  color: #1f8a5b;
}

.contact-content {
  max-width: 860px;
}

.contact-section {
  scroll-margin-top: 104px;
  padding: 0 0 48px;
  margin: 0 0 48px;
  border-bottom: 1px solid #e8eaed;
}

.contact-section__label {
  margin-bottom: 8px;
  color: #1f8a5b;
  font-size: 12px;
  font-weight: 800;
}

.contact-section h2 {
  margin: 0 0 24px;
  color: #1f2329;
  font-size: 28px;
  font-weight: 800;
}

.contact-richtext,
.contact-section p {
  color: #4e5969;
  line-height: 1.9;
}

.contact-principles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.contact-principles > div {
  padding-top: 16px;
  border-top: 3px solid #23a06b;
}

.contact-principles strong {
  color: #1f2329;
  font-size: 18px;
}

.contact-principles p {
  margin: 8px 0 0;
  font-size: 14px;
}

.contact-list {
  margin: 28px 0 0;
}

.contact-list > div {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 24px;
  padding: 18px 0;
  border-top: 1px solid #eef0f2;
}

.contact-list dt {
  color: #1f2329;
  font-weight: 700;
}

.contact-list dt i {
  margin-right: 8px;
  color: #23a06b;
}

.contact-list dd {
  margin: 0;
  color: #4e5969;
}

.contact-feedback {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  border-bottom: 0;
}

.contact-feedback h2 {
  margin-bottom: 8px;
}

.contact-feedback p {
  margin: 0;
}

@media (max-width: 767.98px) {
  .contact-banner {
    padding: 36px 0 28px;
  }

  .contact-banner h1 {
    font-size: 28px;
  }

  .contact-docs {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-top: 28px;
  }

  .contact-toc {
    position: static;
    border-right: 0;
    border-bottom: 1px solid #e5e8eb;
  }

  .contact-toc nav {
    flex-direction: row;
    overflow-x: auto;
  }

  .contact-toc a {
    flex: 0 0 auto;
    padding: 9px 16px 12px 0;
  }

  .contact-principles {
    grid-template-columns: 1fr;
  }

  .contact-list > div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .contact-feedback {
    align-items: flex-start;
    flex-direction: column;
  }
}