:root {
  --bg: #f5f7fb;
  --panel: #ffffff;
  --line: #d9e3f1;
  --text: #1b2f4d;
  --muted: #60758f;
  --primary: #123c73;
  --accent: #2b66b3;
  --radius-md: 10px;
  --radius-lg: 12px;
  --app-pad: 8px;
  --section-gap: 8px;
  --hero-pad-y: 14px;
  --hero-pad-x: 14px;
  --hero-title-size: 32px;
  --search-height: 38px;
  --tree-width: 230px;
  --tree-link-size: 12px;
  --tree-link-pad-y: 8px;
  --tree-link-pad-x: 9px;
  --topic-min-h: 64px;
  --topic-pad-y: 10px;
  --topic-pad-x: 11px;
  --result-item-pad-y: 10px;
  --result-item-pad-x: 11px;
  --result-title-size: 14px;
  --result-summary-size: 12.5px;
  --article-pad: 14px;
  --article-title-size: 34px;
  --article-body-size: 15px;
  --toc-title-size: 13px;
  --toc-link-size: 12px;
  --shadow-soft: 0 8px 18px rgba(21, 40, 72, 0.06);
  --shadow-elev: 0 10px 24px rgba(22, 43, 74, 0.08);
}

body[data-density="comfortable"] {
  --app-pad: 14px;
  --section-gap: 12px;
  --hero-pad-y: 18px;
  --hero-pad-x: 18px;
  --hero-title-size: 38px;
  --search-height: 44px;
  --tree-width: 260px;
  --tree-link-size: 13px;
  --tree-link-pad-y: 10px;
  --tree-link-pad-x: 11px;
  --topic-min-h: 80px;
  --topic-pad-y: 12px;
  --topic-pad-x: 13px;
  --result-item-pad-y: 13px;
  --result-item-pad-x: 14px;
  /* Match default density / article list text — avoid oversized result cards in comfortable mode */
  --result-title-size: 14px;
  --result-summary-size: 12.5px;
  --article-pad: 18px;
  --article-title-size: 42px;
  --article-body-size: 16px;
  --toc-title-size: 14px;
  --toc-link-size: 13px;
  --shadow-soft: 0 12px 24px rgba(21, 40, 72, 0.08);
  --shadow-elev: 0 14px 28px rgba(22, 43, 74, 0.1);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", "PingFang SC", Arial, sans-serif;
  background:
    radial-gradient(130% 75% at 0% 0%, rgba(49, 102, 184, 0.1) 0%, rgba(49, 102, 184, 0) 54%),
    radial-gradient(95% 60% at 100% 10%, rgba(67, 152, 204, 0.08) 0%, rgba(67, 152, 204, 0) 52%),
    linear-gradient(180deg, #f7f9fd 0%, #f2f5fb 100%);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  position: relative;
}

body::before,
body::after {
  content: "";
  position: fixed;
  pointer-events: none;
  z-index: 0;
}

body::before {
  left: -6vw;
  right: -6vw;
  bottom: -112px;
  height: 240px;
  border-radius: 46% 54% 0 0 / 100% 100% 0 0;
  background: linear-gradient(
    90deg,
    rgba(138, 193, 242, 0.26),
    rgba(188, 218, 246, 0.18),
    rgba(181, 207, 246, 0.22)
  );
}

body::after {
  width: 360px;
  height: 360px;
  right: -200px;
  top: -170px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(42, 106, 191, 0.16) 0%,
    rgba(42, 106, 191, 0.04) 48%,
    rgba(42, 106, 191, 0) 72%
  );
}

.kb-app {
  min-height: 100vh;
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--app-pad) 10px 12px;
  position: relative;
  z-index: 1;
}

.kb-topbar {
  display: flex;
  align-items: center;
  margin-bottom: var(--section-gap);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.kb-logo-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--primary);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.03em;
}

.kb-logo-link:hover {
  opacity: 0.92;
}

.kb-logo-badge {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(180deg, #1c4f92, #123d74);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.05rem;
  font-weight: 800;
  flex-shrink: 0;
  box-shadow: 0 4px 10px rgba(18, 63, 118, 0.2);
}

.kb-logo-word {
  line-height: 1.2;
}

.docs-main {
  margin-top: 0;
}

.search-hero {
  margin: 0 0 var(--section-gap);
  padding: var(--hero-pad-y) var(--hero-pad-x) calc(var(--hero-pad-y) - 2px);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-elev);
  position: relative;
  overflow: hidden;
}

.hero-top {
  display: flex;
  gap: 6px;
  margin-bottom: calc(var(--section-gap) - 1px);
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
}

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.hero-fact {
  color: #5b7291;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.32px;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.hero-fact::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(180deg, #4b8ad1, #2d66af);
  box-shadow: 0 0 0 3px rgba(76, 139, 211, 0.12);
}

.kb-brand {
  margin: 0 0 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.02em;
}

/* Hub + article standalone: same small brand line as help-article.html (not a display h1). */
.search-hero .kb-brand {
  margin: 0 0 10px;
}

.search-wrap {
  display: grid;
  grid-template-columns: 1fr 120px;
  gap: 6px;
  padding: 4px;
  border: 1px solid #dce6f3;
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.search-wrap:focus-within {
  border-color: #bfd1ea;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9), 0 0 0 3px rgba(27, 85, 164, 0.1);
}

.search-input {
  height: var(--search-height);
  border-radius: var(--radius-md);
  border: 1px solid #d3dceb;
  padding: 0 12px;
  background: #fff;
  font-size: 14px;
  color: #203655;
}

.search-input::placeholder {
  color: #a8b4c9;
  opacity: 1;
}

.search-input:focus {
  outline: none;
  border-color: #9bb3d7;
  box-shadow: 0 0 0 3px rgba(26, 82, 161, 0.12);
}

.search-btn {
  border: 0;
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, #1c4f92, #123d74);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 7px 15px rgba(18, 63, 118, 0.2);
  cursor: pointer;
}

.docs-layout {
  display: grid;
  grid-template-columns: var(--tree-width) 1fr;
  gap: var(--section-gap);
}

.doc-tree {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 12px 10px 8px;
  box-shadow: var(--shadow-soft);
  max-height: calc(100vh - 16px);
  overflow: auto;
  position: sticky;
  top: 8px;
}

.doc-tree::-webkit-scrollbar {
  width: 8px;
}

.doc-tree::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: #cfdced;
}

.tree-group {
  margin-bottom: 10px;
  padding: 8px 8px 6px;
  border: 1px solid #e8edf5;
  border-radius: 10px;
  background: linear-gradient(180deg, #ffffff, #fbfdff);
}

.tree-title {
  margin: 0 0 7px;
  font-size: 10px;
  color: #6f819c;
  text-transform: uppercase;
  letter-spacing: 0.72px;
  font-weight: 700;
}

/* Collapsible doc tree (L1 part → L2 section → L3 article); chevron on the right, no icon tile */
.tree-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  margin: 0;
  padding: 8px 10px;
  border: 1px solid #dce6f4;
  border-radius: 8px;
  background: linear-gradient(180deg, #ffffff, #f4f8ff);
  color: #3f5f88;
  text-align: left;
  font-family: inherit;
  cursor: pointer;
  transition:
    background 0.15s ease,
    border-color 0.15s ease;
}

.tree-toggle:hover {
  border-color: #c5d6ef;
  background: linear-gradient(180deg, #fbfdff, #eef4ff);
}

.tree-toggle:focus-visible {
  outline: 2px solid rgba(27, 85, 164, 0.35);
  outline-offset: 2px;
}

.tree-toggle--l1 {
  margin-bottom: 6px;
  padding: 9px 10px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.72px;
  text-transform: uppercase;
  color: #6f819c;
  border-color: #e8edf5;
  background: linear-gradient(180deg, #ffffff, #fbfdff);
}

.tree-title-text {
  flex: 1;
  min-width: 0;
  line-height: 1.25;
  text-align: left;
}

.tree-toggle--l2 {
  margin-bottom: 0;
  padding: 6px 8px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: #3f5f88;
}

.tree-l2-text {
  flex: 1;
  min-width: 0;
  line-height: 1.3;
  text-align: left;
}

.tree-chevron {
  margin-left: auto;
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border-radius: 0;
  font-size: 10px;
  line-height: 1;
  color: #5a7194;
  transition: transform 0.2s ease;
}

.tree-chevron::before {
  content: "▼";
  display: block;
  transform: scale(0.88);
}

.tree-toggle[aria-expanded="false"] .tree-chevron {
  transform: rotate(-90deg);
}

.tree-panel--l1 {
  margin-top: 2px;
  padding-left: 8px;
  border-left: 1px dashed #d7e2f1;
}

.tree-panel--l1[hidden] {
  display: none !important;
}

.tree-panel--l2 {
  margin-top: 6px;
  padding-left: 9px;
  border-left: 1px dashed #e1e9f5;
  display: grid;
  gap: 5px;
}

.tree-panel--l2[hidden] {
  display: none !important;
}

.tree3-l2 + .tree3-l2 {
  margin-top: 6px;
}

.tree-link {
  width: 100%;
  text-align: left;
  border: 1px solid #eef2f8;
  background: #fdfefe;
  color: #415570;
  border-radius: var(--radius-md);
  padding: var(--tree-link-pad-y) var(--tree-link-pad-x);
  cursor: pointer;
  font-size: var(--tree-link-size);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  transition:
    border-color 0.15s ease,
    background 0.15s ease,
    color 0.15s ease,
    box-shadow 0.15s ease,
    transform 0.15s ease;
}

.tree-link + .tree-link {
  margin-top: 6px;
}

#treeStressList .tree-link {
  font-size: 11.5px;
  padding-top: 7px;
  padding-bottom: 7px;
}

.tree-stress-group + .tree-stress-group {
  margin-top: 7px;
}

.tree-stress-group-items {
  margin-top: 6px;
}

.tree-stress-group-label {
  display: block;
  height: 24px;
  border: 1px solid #e1e9f5;
  border-radius: 8px;
  background: linear-gradient(180deg, #fafdff, #f2f7ff);
  color: #4d6789;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.35px;
  text-transform: uppercase;
  line-height: 24px;
  padding: 0 8px;
}

.tree3-l1 + .tree3-l1 {
  margin-top: 7px;
}

.tree3-l1-label,
.tree3-l2-label {
  width: 100%;
  border: 1px solid #dce6f4;
  border-radius: 8px;
  background: linear-gradient(180deg, #ffffff, #f4f8ff);
  color: #3f5f88;
  text-align: left;
}

.tree3-l1-label {
  display: block;
  line-height: 26px;
  height: 26px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.3px;
  text-transform: uppercase;
  padding: 0 8px;
}

.tree3-l1-body {
  margin-top: 6px;
  padding-left: 8px;
  border-left: 1px dashed #d7e2f1;
}

.tree3-l2-label {
  display: block;
  line-height: 25px;
  height: 25px;
  font-size: 11px;
  font-weight: 600;
  padding: 0 8px;
}

.tree3-l2-body {
  margin-top: 5px;
  padding-left: 9px;
  border-left: 1px dashed #e1e9f5;
  display: grid;
  gap: 5px;
}

.tree3-link.tree-link {
  font-size: 11px;
  padding-top: 6px;
  padding-bottom: 6px;
}

/* Single-page hub: hide hero brand while reading an article (matches previous h1 behavior). */
body.page-hub.is-article-mode .search-hero .kb-brand {
  display: none;
}

/* 阅读文章时左侧目录与首页一致：沿用 .docs-layout 的 var(--tree-width)，不缩窄、不隐藏分组标题 */

.tree-link::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: #cad6e9;
  flex: 0 0 auto;
}

.tree-link:hover,
.tree-link.is-active {
  background: linear-gradient(180deg, #f5f9ff, #edf4ff);
  border-color: #cad9ef;
  color: #1a3f73;
  box-shadow: 0 4px 10px rgba(29, 65, 117, 0.1);
  transform: translateY(-1px);
}

.tree-link:hover::before,
.tree-link.is-active::before {
  background: #2b66b3;
}

.docs-content {
  min-width: 0;
}

.view {
  margin: 0 0 var(--section-gap);
}

.is-hidden {
  display: none;
}

.cards-title {
  margin-bottom: 8px;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.1px;
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--section-gap);
}

.topic-card {
  border: 1px solid #e0e6f0;
  background: #fff;
  border-radius: var(--radius-md);
  min-height: var(--topic-min-h);
  text-align: left;
  padding: var(--topic-pad-y) var(--topic-pad-x);
  color: #34465f;
  transition: transform 0.16s ease, box-shadow 0.16s ease, border-color 0.16s ease;
  font-size: 13px;
  line-height: 1.35;
  font-weight: 600;
  cursor: pointer;
}

.topic-card:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 16px rgba(20, 40, 70, 0.1);
  border-color: #d5e0ef;
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--section-gap);
}

.result-head {
  margin-bottom: 6px;
  padding: 0 2px;
}

.result-list {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: #fff;
  padding: 6px;
  box-shadow: var(--shadow-soft);
  min-height: 90px;
}

.result-item {
  padding: var(--result-item-pad-y) var(--result-item-pad-x);
  border-radius: var(--radius-md);
  border: 1px solid #e6ebf3;
  margin-bottom: 6px;
  cursor: pointer;
  transition: transform 0.14s ease, box-shadow 0.14s ease, border-color 0.14s ease;
  display: grid;
  gap: 6px;
}

.result-top {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
}

.result-breadcrumb {
  font-size: 11px;
  font-weight: 600;
  color: #3d5c86;
  letter-spacing: 0.02em;
  line-height: 1.35;
}

.result-title {
  color: #1f3657;
  font-size: var(--result-title-size);
  font-weight: 700;
  line-height: 1.35;
}

.result-summary {
  margin: 0;
  color: #667b95;
  font-size: var(--result-summary-size);
  line-height: 1.45;
}

.result-item:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 16px rgba(24, 41, 72, 0.1);
  border-color: #d3dff0;
}

.result-empty {
  border: 1px dashed #d3deef;
  border-radius: 10px;
  background: linear-gradient(180deg, #fbfdff, #f5f9ff);
  padding: 14px 12px;
}

.result-empty strong {
  display: block;
  margin-bottom: 4px;
  color: #2a456a;
}

.result-empty p {
  margin: 0;
  color: #667e99;
  font-size: 12px;
}

.result-pagination {
  margin-top: 8px;
  display: flex;
  justify-content: flex-end;
  gap: 6px;
}

.page-btn {
  min-width: 28px;
  height: 28px;
  border: 1px solid #d4deec;
  border-radius: 8px;
  background: #fff;
  color: #36547d;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  padding: 0 8px;
}

.page-btn:hover {
  border-color: #bfd0e7;
  background: #f3f8ff;
}

.page-btn.is-active {
  border-color: #2d68b2;
  background: linear-gradient(180deg, #2e6bb8, #255a9d);
  color: #fff;
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr 190px;
  gap: var(--section-gap);
}

.article,
.toc {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: #fff;
  padding: var(--article-pad);
  box-shadow: var(--shadow-soft);
}

.toc {
  position: sticky;
  top: 8px;
  height: fit-content;
}

.article h2 {
  margin: 6px 0 12px;
  font-size: var(--article-title-size);
  line-height: 1.1;
  letter-spacing: -0.45px;
  font-weight: 800;
}

/* Classic default link blue (readable, like legacy browser defaults) */
.article a {
  color: #0000ee;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
  border-bottom: none;
}

.article a:hover {
  color: #0000cc;
}

.article h4 {
  margin: 16px 0 8px;
  font-size: 15px;
  letter-spacing: 0.1px;
}

.article-body {
  margin-top: 16px;
  display: grid;
  gap: 16px;
}

.article-section {
  display: grid;
  gap: 10px;
  scroll-margin-top: 88px;
}

.article-section h3 {
  margin: 0;
  font-size: 21px;
  line-height: 1.28;
  letter-spacing: -0.2px;
}

.article-section p {
  margin: 0;
}

.article-contact-footer {
  margin: 0;
  padding-top: 14px;
  margin-top: 4px;
  border-top: 1px solid #e4ecf6;
  color: #506581;
  font-size: var(--article-body-size);
  line-height: 1.62;
}

.article-login-link {
  margin: 4px 0 12px;
}

.article-callout {
  border: 1px solid #dbe5f4;
  background: linear-gradient(180deg, #f8fbff, #f2f7ff);
  border-radius: 10px;
  padding: 10px 12px;
  color: #335179;
  font-size: 13px;
}

.article-figure {
  max-width: 75%;
  margin: 2px auto 0;
  border: 1px solid #dbe5f4;
  border-radius: 12px;
  overflow: hidden;
  background: #f8fbff;
}

.article-figure-headrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 14px;
  padding: 14px 16px 12px;
  background: #fff;
  border-bottom: 1px solid #e4ecf6;
}

.article-figure-headrow .article-figure-heading {
  margin: 0;
  padding: 0;
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
  line-height: 1.45;
  flex: 1;
  min-width: min(100%, 200px);
}

.article-figure-headrow .article-figure-heading a {
  font-size: inherit;
  font-weight: inherit;
  letter-spacing: inherit;
}

.article-figure-headrow .article-login-link {
  margin: 0;
  padding: 0;
  flex-shrink: 0;
}

.article-figure-headrow .article-login-link a {
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: #0000ee;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.article-figure-headrow .article-login-link a:hover {
  color: #0000cc;
}

/* Slightly larger body copy for Registration & sign-in (kb-1-1) */
.article[data-article-id="kb-1-1"] {
  --article-body-size: 16px;
  --article-title-size: 35px;
}

body[data-density="comfortable"] .article[data-article-id="kb-1-1"] {
  --article-body-size: 17px;
  --article-title-size: 43px;
}

.article[data-article-id="kb-1-1"] .article-section h3 {
  font-size: 22px;
}

body[data-density="comfortable"] .article[data-article-id="kb-1-1"] .article-section h3 {
  font-size: 23px;
}

.article-figure img {
  width: 100%;
  display: block;
  height: auto;
  max-height: 390px;
  object-fit: contain;
  object-position: top center;
  background: #f4f7fc;
}

.article p {
  margin: 0;
  color: #506581;
  font-size: var(--article-body-size);
  line-height: 1.62;
}

.article strong {
  font-weight: 700;
  color: #1b2f4d;
}

.article-faq-attribution {
  margin: 12px 0 0;
  font-size: 12px;
  color: #60758f;
  line-height: 1.5;
}

.article-faq-answer p {
  margin: 0 0 10px;
}

.article-faq-answer p:last-child {
  margin-bottom: 0;
}

.article-faq-answer ol,
.article-faq-answer ul {
  margin: 8px 0 12px;
  padding-left: 22px;
  color: #506581;
  font-size: var(--article-body-size);
}

.article-faq-answer li {
  margin-bottom: 6px;
}

.article-faq-answer h4 {
  margin: 14px 0 8px;
  font-size: 15px;
  font-weight: 700;
  color: #1b2f4d;
}

.article-faq-answer h4:first-child {
  margin-top: 0;
}

.article ol,
.article ul {
  margin: 0;
  padding-left: 20px;
}

.article li {
  margin-bottom: 8px;
  color: #2d4261;
  font-size: var(--article-body-size);
  line-height: 1.58;
}

.feedback {
  margin-top: 14px;
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 12px;
  color: #61758f;
}

.feedback button {
  border: 1px solid #d7dfeb;
  border-radius: 7px;
  background: #fff;
  height: 26px;
  padding: 0 10px;
  font-size: 12px;
  cursor: pointer;
  color: #375682;
  font-weight: 600;
}

.feedback button:hover {
  background: #f2f7ff;
  border-color: #c8d8ed;
}

.toc h4 {
  margin: 0 0 8px;
  font-size: var(--toc-title-size);
  color: #2e486e;
}

#tocList {
  max-height: min(72vh, 620px);
  overflow: auto;
  padding-right: 4px;
}

#tocList::-webkit-scrollbar {
  width: 8px;
}

#tocList::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: #cfdced;
}

.toc a {
  display: block;
  color: #4a92d6;
  text-decoration: none;
  margin-bottom: 4px;
  font-size: var(--toc-link-size);
  border-radius: 6px;
  padding: 5px 7px;
  border: 1px solid transparent;
}

.toc a:hover {
  background: #f2f6fe;
  border-color: #d9e4f4;
}

.toc a.is-active {
  background: linear-gradient(180deg, #eef5ff, #e7f0ff);
  border-color: #c9daef;
  color: #1a5a9e;
  font-weight: 700;
}

@media (max-width: 1100px) {
  .hero-top {
    align-items: flex-start;
  }

  .hero-facts {
    gap: 8px;
  }

  .docs-layout {
    grid-template-columns: 1fr;
  }

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

  .doc-tree {
    position: static;
  }

  .article-layout {
    grid-template-columns: 1fr;
  }
}