.help-doc-hero {
  background: #f3f5f8 url("/web/default/assets/img/document/banner.png") no-repeat center center;
  background-size: cover;
  padding: 72px 20px 48px;
  text-align: center;
}

.help-doc-hero__inner {
  max-width: 920px;
  margin: 0 auto;
}

.help-doc-hero__title {
  margin: 0 0 28px;
  font-size: 40px;
  font-weight: 600;
  color: #191919;
  line-height: 1.2;
}

.help-doc-search {
  display: flex;
  align-items: center;
  max-width: 720px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid #e6eaed;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(15, 34, 67, 0.06);
}

.help-doc-search__input {
  flex: 1;
  height: 48px;
  padding: 0 16px;
  border: 0;
  outline: none;
  font-size: 14px;
  color: #191919;
}

.help-doc-search__input::placeholder {
  color: #a1a7b3;
}

.help-doc-search__btn {
  width: 56px;
  height: 48px;
  border: 0;
  background: #fff;
  color: #8a93a6;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.help-doc-search__btn:hover {
  color: #006eff;
}

.help-doc-hot {
  margin-top: 18px;
  font-size: 14px;
  color: #7d859d;
  line-height: 24px;
}

.help-doc-hot__label {
  margin-right: 8px;
}

.help-doc-hot__link {
  display: inline-block;
  margin: 0 10px 6px 0;
  color: #4b556a;
  text-decoration: none;
}

.help-doc-hot__link:hover {
  color: #006eff;
}

.help-doc-list {
  background: #f7f8fa;
  padding: 32px 20px 56px;
}

.help-doc-list__inner {
  max-width: 1200px;
  margin: 0 auto;
}

.help-doc-category + .help-doc-category {
  margin-top: 28px;
}

.help-doc-category__head {
  display: flex;
  align-items: center;
  margin-bottom: 14px;
}

.help-doc-category__bar {
  width: 4px;
  height: 18px;
  margin-right: 10px;
  border-radius: 2px;
  background: #006eff;
  flex-shrink: 0;
}

.help-doc-category__title {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  color: #191919;
}

.help-doc-category__body {
  background: #fff;
  border: 1px solid #eef1f5;
  border-radius: 4px;
  padding: 24px 28px;
}

.help-doc-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px 24px;
}

.help-doc-item {
  display: block;
  color: #4b556a;
  font-size: 14px;
  line-height: 32px;
  text-decoration: none;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.help-doc-item:hover,
.help-doc-item.is-highlight {
  color: #006eff;
}

.help-doc-category__empty,
.help-doc-empty {
  color: #a1a7b3;
  font-size: 14px;
  line-height: 24px;
}

.help-doc-empty {
  padding: 48px 20px;
  text-align: center;
  background: #fff;
  border: 1px solid #eef1f5;
  border-radius: 4px;
}

@media (max-width: 1024px) {
  .help-doc-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .help-doc-hero {
    padding: 56px 16px 32px;
  }

  .help-doc-hero__title {
    font-size: 28px;
  }

  .help-doc-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .help-doc-category__body {
    padding: 18px 16px;
  }
}

@media (max-width: 480px) {
  .help-doc-grid {
    grid-template-columns: 1fr;
  }
}