.kth-article,
.kth-zone {
  line-height: 1.75;
  color: var(--body,#212529);
}
.kth-article > *:first-child,
.kth-zone > *:first-child {
  margin-top: 0;
}
.kth-article > *:last-child,
.kth-zone > *:last-child {
  margin-bottom: 0;
}
.kth-article h2,
.kth-zone h2 {
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.3;
  margin: 2rem 0 .85rem;
  padding-bottom: .4rem;
  border-bottom: 2px solid rgba(0, 123, 255, .16);
}
.kth-article h3,
.kth-zone h3 {
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.35;
  margin: 1.6rem 0 .6rem;
}
.kth-article h4,
.kth-zone h4 {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 1.2rem 0 .5rem;
}
.kth-article p,
.kth-zone p {
  margin: 0 0 1.1rem;
}
.kth-article ul,
.kth-article ol,
.kth-zone ul,
.kth-zone ol {
  margin: 0 0 1.1rem;
  padding-left: 1.6rem;
}
.kth-article li,
.kth-zone li {
  margin-bottom: .45rem;
}
.kth-article li:last-child,
.kth-zone li:last-child {
  margin-bottom: 0;
}
.kth-article li > ul,
.kth-article li > ol,
.kth-zone li > ul,
.kth-zone li > ol {
  margin: .45rem 0 0;
}
.kth-article table,
.kth-zone table {
  width: 100%;
  margin: 0 0 1.25rem;
  border: 1px solid #dee2e6;
}
.kth-article th,
.kth-article td,
.kth-zone th,
.kth-zone td {
  padding: .6rem .75rem;
  border: 1px solid #dee2e6;
  vertical-align: top;
  text-align: left;
}
.kth-article thead th,
.kth-zone thead th {
  background: var(--light,#f8f9fa);
  font-weight: 600;
  border-bottom-width: 2px;
  vertical-align: bottom;
}
.kth-article tbody tr:nth-child(even),
.kth-zone tbody tr:nth-child(even) {
  background: rgba(0, 0, 0, .018);
}
.kth-article blockquote,
.kth-zone blockquote {
  margin: 0 0 1.1rem;
  padding: .25rem 0 .25rem 1rem;
  border-left: 3px solid var(--blue,#007bff);
  color: var(--gray-600,#6c757d);
}
.kth-article code,
.kth-zone code {
  padding: .15em .4em;
  background: var(--light,#f8f9fa);
  border: 1px solid #e9ecef;
  border-radius: 3px;
  font-size: .9em;
}
.kth-article pre,
.kth-zone pre {
  margin: 0 0 1.1rem;
  padding: .85rem 1rem;
  background: var(--light,#f8f9fa);
  border: 1px solid #e9ecef;
  border-radius: 4px;
  overflow-x: auto;
}
.kth-article pre code,
.kth-zone pre code {
  padding: 0;
  background: none;
  border: 0;
}
.kth-article hr,
.kth-zone hr {
  margin: 1.6rem 0;
  border: 0;
  border-top: 1px solid var(--border,#ced4da);
}
.kth-article img,
.kth-zone img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
}
.kth-article figure,
.kth-zone figure {
  margin: 0 0 1.25rem;
  text-align: center;
}
.kth-article figcaption,
.kth-zone figcaption {
  margin-top: .45rem;
  font-size: .875rem;
  color: var(--gray-600,#6c757d);
}
@media (max-width:767px) {
  .kth-article table,
  .kth-zone table {
    display: block;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .kth-article .table-responsive,
  .kth-zone .table-responsive {
    margin: 0 0 1.25rem;
    border: 1px solid #dee2e6;
  }
  .kth-article .table-responsive > table,
  .kth-zone .table-responsive > table {
    display: table;
    width: auto;
    min-width: 100%;
    margin: 0;
    border: 0;
    overflow: visible;
  }
  .kth-article .table-responsive th,
  .kth-article .table-responsive td,
  .kth-zone .table-responsive th,
  .kth-zone .table-responsive td {
    white-space: nowrap;
  }
  .kth-article h2,
  .kth-zone h2 {
    font-size: 1.3rem;
  }
  .kth-article h3,
  .kth-zone h3 {
    font-size: 1.1rem;
  }
}
.kth-article .kth-copy {
  display: inline-block;
  min-width: 2.2em;
  padding: .15em .45em;
  margin: .1em 0;
  border: 1px solid rgba(0, 0, 0, .15);
  border-radius: 6px;
  text-align: center;
  cursor: pointer;
  user-select: all;
  line-height: 1.5;
}
.kth-article .kth-copy:hover {
  border-color: currentColor;
}
.kth-article .kth-copy.is-copied {
  background: #d4edda;
  border-color: #28a745;
}
.kth-article .kth-copy.is-copied::after {
  content: " ✓";
  font-size: .8em;
  color: #28a745;
}
.kth-article .kth-copy-luoi {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: .6em 0 1em;
}
.kth-article .kth-copy-luoi .kth-copy {
  min-width: 2.8em;
  padding: .35em .7em;
  margin: 0;
  font-size: 1.15em;
  border-radius: 10px;
  background: #fff;
  white-space: pre;
  user-select: text;
}
.kth-article .kth-copy-luoi .kth-copy:hover {
  border-color: #80bdff;
  background: #f3f8ff;
}
.kth-article .kth-copy-trong {
  min-width: 4.2em;
  background:
    repeating-linear-gradient(
      45deg,
      #fff,
      #fff 6px,
      #f1f3f5 6px,
      #f1f3f5 12px) !important;
}
.kth-article .kth-copy-goi-y {
  display: block;
  font-size: .85em;
  color: #6c757d;
  margin-top: -.4em;
}
.kth-faq h3 {
  position: relative;
  margin: 1.1rem 0 0 !important;
  padding: .75rem .9rem .75rem 2.9rem;
  font-size: 1.05rem !important;
  font-weight: 700;
  line-height: 1.4;
  color: #0b3d91;
  background: #eef5ff;
  border: 1px solid #cfe2ff;
  border-left: 4px solid #007bff;
  border-radius: 10px 10px 0 0;
}
.kth-faq h3::before {
  content: "?";
  position: absolute;
  left: .8rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: #007bff;
  color: #fff;
  font-size: .95rem;
  font-weight: 700;
  line-height: 1.5rem;
  text-align: center;
}
.kth-faq h3 + p {
  margin: 0 0 .4rem;
  padding: .7rem .9rem .8rem 2.9rem;
  background: #fff;
  border: 1px solid #cfe2ff;
  border-top: 0;
  border-left: 4px solid #cfe2ff;
  border-radius: 0 0 10px 10px;
  color: #343a40;
}
.kth-article.kth-luoi-tu-do .kth-copy-luoi {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.kth-article.kth-luoi-tu-do .kth-copy-luoi .kth-copy {
  font-size: 1.495em;
  flex: 1 1 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.8em;
  max-width: 100%;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  text-align: center;
}
.kth-article.kth-luoi-tu-do .kth-copy-luoi::after {
  content: "";
  flex: 99999 1 0;
  height: 0;
  min-width: 0;
}
.kth-article.kth-luoi-tu-do .kth-copy-luoi .kth-copy-trong {
  flex: 0 0 auto;
  min-width: 4.2em;
}