:root {
  --gh-bg: #fff;
  --gh-text: #333;
  --gh-ink: #222;
  --gh-muted: #777;
  --gh-line: #e5e7eb;
  --gh-soft: #f7f8fa;
  --gh-blue: #1d6fa5;
  --gh-blue-dark: #135b88;
  --gh-green: #2f5a49;
  --gh-warm: #fff8e8;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body.gh-body {
  margin: 0;
  background: var(--gh-bg);
  color: var(--gh-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  line-height: 1.7;
}

body.gh-body a {
  color: var(--gh-blue);
  text-decoration: none;
}

body.gh-body a:hover {
  color: var(--gh-blue-dark);
  text-decoration: underline;
}

body.gh-body h1,
body.gh-body h2,
body.gh-body h3,
body.gh-body h4 {
  font-family: inherit;
}

body.gh-body img {
  max-width: 100%;
  height: auto;
}

.gh-container {
  width: calc(100% - 80px);
  max-width: 1840px;
  margin: 0 auto;
}

.screen-reader-text {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.gh-skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: #fff;
  padding: 8px 12px;
}

.gh-skip-link:focus {
  left: 12px;
  top: 12px;
}

.gh-topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: #fff;
  border-bottom: 1px solid var(--gh-line);
}

.admin-bar .gh-topbar {
  top: 32px;
}

.gh-topbar-in {
  min-height: 58px;
  display: flex;
  align-items: center;
  gap: 22px;
}

.gh-logo {
  display: flex;
  align-items: center;
  gap: 9px;
  flex-shrink: 0;
  color: var(--gh-ink);
}

.gh-logo:hover {
  color: var(--gh-ink);
  text-decoration: none;
}

.gh-logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--gh-blue);
  color: #fff;
  font-family: "Songti SC", "STSong", serif;
  font-size: 18px;
}

.gh-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.gh-logo-text strong {
  font-size: 21px;
  letter-spacing: .08em;
}

.gh-logo-text small {
  margin-top: 4px;
  color: var(--gh-muted);
  font-size: 10px;
  letter-spacing: .06em;
}

.gh-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  flex: 1;
  margin: 0;
  padding: 0;
  list-style: none;
}

.gh-nav li {
  margin: 0;
}

.gh-nav a {
  display: inline-block;
  color: #555;
  font-size: 14px;
  white-space: nowrap;
}

.gh-nav a:hover,
.gh-nav .current-menu-item > a,
.gh-nav .current_page_item > a {
  color: var(--gh-blue);
  font-weight: 600;
  text-decoration: none;
}

.gh-search {
  display: flex;
  width: 180px;
  height: 30px;
  border: 1px solid var(--gh-line);
  background: #fafafa;
  flex-shrink: 0;
}

.gh-search input {
  min-width: 0;
  flex: 1;
  border: 0;
  background: transparent;
  padding: 0 9px;
  color: #555;
  font: inherit;
  font-size: 12px;
  outline: none;
}

.gh-search button {
  border: 0;
  border-left: 1px solid var(--gh-line);
  background: #fff;
  color: #777;
  padding: 0 9px;
  font: inherit;
  font-size: 12px;
  cursor: pointer;
}

.gh-search button:hover {
  color: var(--gh-blue);
}

.gh-notice {
  background: #eef6fb;
  border-bottom: 1px solid #d7e8f2;
  color: #32749d;
  font-size: 12px;
  padding: 7px 0;
}

.gh-notice .gh-container {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.gh-layout {
  display: grid;
  grid-template-columns: 152px minmax(0, 1fr) 300px;
  gap: 0;
  padding: 22px 0 45px;
  align-items: start;
}

.gh-left {
  min-width: 0;
  padding-right: 16px;
  font-size: 13px;
}

.gh-nav-group {
  border-bottom: 1px solid var(--gh-line);
  padding-bottom: 15px;
  margin-bottom: 16px;
}

.gh-nav-group h2 {
  margin: 0 0 8px;
  color: #999;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .06em;
}

.gh-left-link {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 5px 0;
  color: #555;
  line-height: 1.45;
}

.gh-left-link:hover,
.gh-left-link.is-active {
  color: var(--gh-blue);
  text-decoration: none;
}

.gh-left-link.is-active {
  font-weight: 600;
}

.gh-count {
  color: #aaa;
  font-size: 11px;
  flex-shrink: 0;
}

.gh-empty-note {
  color: #aaa;
  font-size: 12px;
}

.gh-main {
  min-width: 0;
  padding: 0 30px;
}

.gh-home-intro {
  padding: 4px 0 19px;
  border-bottom: 1px solid var(--gh-line);
}

.gh-kicker {
  display: inline-block;
  margin-bottom: 7px;
  color: var(--gh-blue);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.gh-home-intro h1,
.gh-page-head h1,
.gh-article h1 {
  margin: 0 0 9px;
  color: var(--gh-ink);
  line-height: 1.35;
  letter-spacing: -.02em;
}

.gh-home-intro h1 {
  font-size: 28px;
}

.gh-home-intro p {
  margin: 0;
  color: #666;
  font-size: 14px;
  line-height: 1.8;
}

.gh-example-note {
  margin: 12px 0 0;
  padding: 8px 11px;
  border-left: 3px solid #c99a3d;
  background: var(--gh-warm);
  color: #795e22;
  font-size: 12px;
  line-height: 1.75;
}

.gh-feed-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  border-bottom: 2px solid #d8dde3;
  padding-bottom: 9px;
  margin-top: 20px;
}

.gh-feed-head h2 {
  margin: 0;
  color: var(--gh-ink);
  font-size: 15px;
}

.gh-feed-head span {
  color: #999;
  font-size: 12px;
}

.gh-feed-tabs {
  display: flex;
  gap: 16px;
  font-size: 13px;
}

.gh-feed-tabs span,
.gh-feed-tabs a {
  color: #777;
}

.gh-feed-tabs .is-on {
  color: var(--gh-blue);
  font-weight: 600;
}

.gh-post {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 88px;
  gap: 18px;
  padding: 15px 0 16px;
  border-bottom: 1px solid #edf0f2;
}

.gh-post-feature {
  padding-top: 17px;
}

.gh-post h2 {
  margin: 0 0 7px;
  color: var(--gh-ink);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
}

.gh-post-feature h2 {
  font-size: 20px;
}

.gh-post h2 a {
  color: var(--gh-ink);
}

.gh-post h2 a:hover {
  color: var(--gh-blue);
  text-decoration: none;
}

.gh-label {
  display: inline-block;
  margin-bottom: 7px;
  padding: 2px 5px;
  background: var(--gh-blue);
  color: #fff;
  font-size: 11px;
}

.gh-summary {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  margin: 0 0 8px;
  color: #666;
  font-size: 13px;
  line-height: 1.75;
}

.gh-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  color: #999;
  font-size: 12px;
  line-height: 1.5;
}

.gh-avatar {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #6b8c78;
  color: #fff;
  font-size: 11px;
  flex-shrink: 0;
}

.gh-cat {
  color: #777;
}

.gh-example-badge {
  display: inline-block;
  padding: 1px 5px;
  border: 1px solid #d8c59a;
  color: #8a6a28;
  background: #fffaf0;
  font-size: 11px;
  line-height: 1.5;
  white-space: nowrap;
}

.gh-post-side {
  height: 67px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #edf0f2;
  background: var(--gh-soft);
  color: #8da0ad;
  font-size: 11px;
  letter-spacing: .08em;
  text-align: center;
}

.gh-feed-foot {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-top: 18px;
}

.gh-text-link {
  font-size: 13px;
}

.gh-right {
  min-width: 0;
  padding-left: 24px;
}

.gh-widget {
  border-top: 2px solid #d8dde3;
  padding-top: 10px;
  margin-bottom: 24px;
}

.gh-widget h2 {
  margin: 0 0 9px;
  color: var(--gh-ink);
  font-size: 14px;
  font-weight: 600;
}

.gh-widget-note {
  margin: 7px 0 0;
  color: #aaa;
  font-size: 11px;
  line-height: 1.6;
}

.gh-rank {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
}

.gh-rank li {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 8px;
  padding: 5px 0;
  line-height: 1.5;
}

.gh-rank b {
  color: #a3adb5;
  font-size: 12px;
  font-weight: 400;
}

.gh-rank li:nth-child(-n+3) b {
  color: var(--gh-blue);
}

.gh-rank a {
  color: #444;
}

.gh-about-box {
  margin-bottom: 24px;
  padding: 13px;
  border: 1px solid #edf0f2;
  background: var(--gh-soft);
  color: #777;
  font-size: 12px;
  line-height: 1.8;
}

.gh-about-box strong {
  display: block;
  margin-bottom: 4px;
  color: var(--gh-ink);
  font-size: 13px;
}

.gh-about-box p {
  margin: 0 0 7px;
}

.gh-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.gh-tag-list a,
.gh-tag {
  display: inline-block;
  padding: 2px 7px;
  border: 1px solid var(--gh-line);
  background: #fafbfc;
  color: #666;
  font-size: 12px;
  line-height: 1.7;
}

.gh-tag-list a:hover,
.gh-tag:hover {
  border-color: #b7d3e5;
  color: var(--gh-blue);
  text-decoration: none;
}

.gh-crumb {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
  color: #999;
  font-size: 12px;
}

.gh-crumb a {
  color: #777;
}

.gh-article-main {
  max-width: 780px;
}

.gh-article-head {
  padding-bottom: 14px;
  border-bottom: 1px solid var(--gh-line);
}

.gh-article h1 {
  font-size: 30px;
  line-height: 1.45;
}

.gh-dek {
  margin: 0 0 12px;
  color: #666;
  font-size: 15px;
  line-height: 1.8;
}

.gh-article-head .gh-meta {
  margin-top: 2px;
}

.gh-article-body {
  color: #333;
  font-size: 15px;
  line-height: 1.95;
}

.gh-article-body > p:first-child {
  margin-top: 18px;
}

.gh-article-body p {
  margin: 0 0 17px;
}

.gh-article-body h2 {
  margin: 31px 0 12px;
  padding-bottom: 7px;
  border-bottom: 1px solid #e8ebee;
  color: var(--gh-ink);
  font-size: 21px;
  line-height: 1.5;
}

.gh-article-body h2 small {
  display: block;
  margin-bottom: 4px;
  color: var(--gh-blue);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .06em;
}

.gh-article-body h3 {
  margin: 24px 0 9px;
  color: var(--gh-ink);
  font-size: 17px;
  line-height: 1.5;
}

.gh-article-body ul,
.gh-article-body ol {
  margin: 0 0 18px;
  padding-left: 20px;
}

.gh-article-body li {
  margin-bottom: 7px;
}

.gh-article-body table {
  width: 100%;
  margin: 16px 0 24px;
  border-collapse: collapse;
  font-size: 13px;
  line-height: 1.65;
}

.gh-article-body th,
.gh-article-body td {
  padding: 8px 9px;
  border: 1px solid #e5e8eb;
  text-align: left;
  vertical-align: top;
}

.gh-article-body th {
  background: var(--gh-soft);
  color: #666;
  font-weight: 500;
}

.gh-article-body blockquote {
  margin: 20px 0;
  padding: 2px 0 2px 14px;
  border-left: 3px solid var(--gh-blue);
  color: #315c76;
  font-size: 17px;
}

.gh-faq {
  margin-top: 26px;
  border-top: 1px solid var(--gh-line);
}

.gh-faq h2 {
  margin: 26px 0 8px;
  color: var(--gh-ink);
  font-size: 21px;
}

.gh-faq details {
  border-bottom: 1px solid var(--gh-line);
  padding: 10px 0;
}

.gh-faq summary {
  cursor: pointer;
  color: var(--gh-ink);
  font-size: 15px;
  font-weight: 600;
}

.gh-faq details div {
  margin-top: 8px;
  color: #666;
  font-size: 13px;
  line-height: 1.8;
}

.gh-faq details p {
  margin: 0;
}

.gh-source {
  margin-top: 24px;
  padding: 11px 13px;
  background: var(--gh-soft);
  color: #888;
  font-size: 12px;
  line-height: 1.8;
}

.gh-source strong {
  display: block;
  margin-bottom: 2px;
  color: #555;
  font-size: 12px;
}

.gh-source p {
  margin: 0;
}

.gh-article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 18px;
}

.gh-related {
  margin-top: 30px;
}

.gh-section-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 10px;
}

.gh-section-head h2 {
  margin: 0;
  color: var(--gh-ink);
  font-size: 17px;
}

.gh-section-head a,
.gh-section-head span {
  color: #888;
  font-size: 12px;
}

.gh-related-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 18px;
}

.gh-related-list a {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 9px 0;
  border-bottom: 1px solid var(--gh-line);
  color: #444;
}

.gh-related-list a:hover {
  color: var(--gh-blue);
  text-decoration: none;
}

.gh-related-list strong {
  font-size: 13px;
  font-weight: 500;
  line-height: 1.5;
}

.gh-related-list span {
  color: #999;
  font-size: 11px;
}

.gh-toc {
  border-top: 2px solid #d8dde3;
  padding-top: 10px;
  margin-bottom: 22px;
}

.gh-toc h3 {
  margin: 0 0 8px;
  color: var(--gh-ink);
  font-size: 14px;
}

.gh-toc ol {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 12px;
  line-height: 1.6;
}

.gh-toc li {
  padding: 4px 0 4px 8px;
  border-left: 2px solid transparent;
}

.gh-toc li:hover {
  border-left-color: var(--gh-blue);
}

.gh-toc .gh-toc-sub {
  padding-left: 20px;
  color: #777;
  font-size: 11.5px;
}

.gh-toc a {
  color: #555;
}

.gh-related-mini {
  margin: 0;
  padding-left: 18px;
  color: #555;
  font-size: 12px;
  line-height: 1.65;
}

.gh-related-mini li {
  padding: 4px 0;
}

.gh-related-mini a {
  color: #444;
}

.gh-method-box {
  padding: 12px;
  border: 1px solid #edf0f2;
  background: var(--gh-soft);
  color: #777;
  font-size: 12px;
  line-height: 1.8;
}

.gh-method-box strong {
  display: block;
  margin-bottom: 4px;
  color: var(--gh-ink);
  font-size: 13px;
}

.gh-method-box p {
  margin: 0 0 6px;
}

.gh-page-head {
  padding: 4px 0 18px;
  border-bottom: 1px solid var(--gh-line);
}

.gh-page-head h1 {
  font-size: 30px;
}

.gh-page-head p {
  margin: 0;
  color: #666;
  font-size: 14px;
  line-height: 1.8;
}

.gh-page-section {
  margin-top: 24px;
}

.gh-check-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.gh-check-grid > div {
  padding: 12px;
  border: 1px solid var(--gh-line);
  background: #fafbfc;
}

.gh-check-grid strong {
  display: block;
  margin-bottom: 4px;
  color: var(--gh-ink);
  font-size: 13px;
}

.gh-check-grid span {
  color: #777;
  font-size: 12px;
  line-height: 1.7;
}

.gh-provider-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.gh-provider-card {
  padding: 14px;
  border: 1px solid var(--gh-line);
  background: #fff;
}

.gh-provider-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
}

.gh-provider-head h3 {
  margin: 0 0 6px;
  font-size: 15px;
  line-height: 1.5;
}

.gh-provider-head h3 a {
  color: var(--gh-ink);
}

.gh-provider-service {
  margin: 0 0 8px;
  color: #666;
  font-size: 13px;
}

.gh-provider-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 9px;
}

.gh-provider-tags span {
  padding: 1px 5px;
  background: var(--gh-soft);
  color: #777;
  font-size: 11px;
}

.gh-provider-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin: 18px 0 22px;
  border: 1px solid var(--gh-line);
}

.gh-provider-facts > div {
  padding: 10px 12px;
  border-right: 1px solid var(--gh-line);
}

.gh-provider-facts > div:last-child {
  border-right: 0;
}

.gh-provider-facts span {
  display: block;
  margin-bottom: 3px;
  color: #999;
  font-size: 11px;
}

.gh-provider-facts strong {
  color: #333;
  font-size: 13px;
  font-weight: 600;
}

.gh-empty {
  padding: 28px 0;
  color: #999;
  font-size: 13px;
}

.gh-footer {
  border-top: 1px solid var(--gh-line);
  padding: 18px 0 28px;
  color: #999;
  font-size: 11px;
}

.gh-footer .gh-container {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.gh-footer a {
  color: #888;
}

.gh-footer-sep {
  margin: 0 5px;
  color: #ccc;
}

.gh-page-content {
  margin-top: 18px;
}

.gh-body .pagination,
.gh-body .nav-links {
  margin-top: 20px;
  color: #666;
  font-size: 13px;
}

.gh-body .page-numbers {
  display: inline-block;
  padding: 3px 8px;
  border: 1px solid var(--gh-line);
  color: #555;
}

.gh-body .page-numbers.current {
  border-color: var(--gh-blue);
  background: var(--gh-blue);
  color: #fff;
}

/* Readability pass: larger Chinese text for long-form reading. */
body.gh-body {
  font-size: 16px;
  line-height: 1.75;
}

.gh-logo-mark {
  font-size: 19px;
}

.gh-logo-text strong {
  font-size: 22px;
}

.gh-logo-text small {
  font-size: 11px;
}

.gh-nav a {
  font-size: 15px;
}

.gh-search input,
.gh-search button,
.gh-notice,
.gh-example-note,
.gh-empty {
  font-size: 13px;
}

.gh-left {
  font-size: 14px;
}

.gh-nav-group h2,
.gh-feed-head span,
.gh-widget-note,
.gh-avatar,
.gh-label,
.gh-example-badge,
.gh-post-side,
.gh-footer,
.gh-provider-tags span,
.gh-provider-facts span {
  font-size: 12px;
}

.gh-count,
.gh-rank b {
  font-size: 13px;
}

.gh-kicker,
.gh-feed-tabs,
.gh-text-link,
.gh-faq details div,
.gh-related-list strong,
.gh-check-grid strong,
.gh-provider-service,
.gh-provider-facts strong,
.gh-body .pagination,
.gh-body .nav-links,
.gh-related-mini,
.gh-method-box {
  font-size: 14px;
}

.gh-home-intro h1,
.gh-page-head h1 {
  font-size: 32px;
}

.gh-home-intro p,
.gh-page-head p,
.gh-dek {
  font-size: 16px;
}

.gh-home-intro p,
.gh-page-head p {
  max-width: 920px;
}

.gh-feed-head h2,
.gh-widget h2,
.gh-provider-head h3,
.gh-toc h3 {
  font-size: 16px;
}

.gh-post h2 {
  font-size: 21px;
}

.gh-post-feature h2 {
  font-size: 23px;
}

.gh-summary {
  max-width: 1040px;
  font-size: 15px;
  line-height: 1.8;
}

.gh-meta,
.gh-crumb,
.gh-about-box,
.gh-tag-list a,
.gh-tag,
.gh-source,
.gh-toc ol,
.gh-check-grid span {
  font-size: 14px;
}

.gh-rank,
.gh-toc .gh-toc-sub {
  font-size: 13px;
}

.gh-article h1 {
  font-size: 34px;
}

.gh-article-main {
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
}

.gh-article-body {
  font-size: 17px;
  line-height: 1.95;
}

.gh-article-body h2,
.gh-faq h2 {
  font-size: 24px;
}

.gh-article-body h3 {
  font-size: 19px;
}

.gh-article-body table,
.gh-faq summary {
  font-size: 15px;
}

.gh-related-list span {
  font-size: 13px;
}

/* Hotline and contact blocks. */
.gh-hotline {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1px;
  padding-left: 14px;
  border-left: 1px solid var(--gh-line);
  color: #555;
  line-height: 1.35;
  white-space: nowrap;
  text-align: right;
  flex-shrink: 0;
}

.gh-hotline span {
  color: #999;
  font-size: 11px;
}

.gh-hotline strong {
  color: var(--gh-ink);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .02em;
}

.gh-hotline:hover {
  color: var(--gh-blue);
  text-decoration: none;
}

.gh-contact-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  margin: 24px 0;
  padding: 16px;
  border: 1px solid #d7e8f2;
  background: #f4f9fc;
}

.gh-contact-copy strong {
  display: block;
  color: var(--gh-ink);
  font-size: 16px;
}

.gh-contact-copy p {
  margin: 5px 0 0;
  color: #666;
  font-size: 14px;
  line-height: 1.75;
}

.gh-contact-call {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 1px;
  color: #555;
  white-space: nowrap;
}

.gh-contact-call small {
  color: #888;
  font-size: 11px;
}

.gh-contact-call strong {
  color: var(--gh-ink);
  font-size: 18px;
  letter-spacing: .02em;
}

.gh-contact-call span {
  color: #777;
  font-size: 12px;
}

.gh-contact-call:hover {
  color: var(--gh-blue);
  text-decoration: none;
}

.gh-footer-contact {
  color: #777;
}

.gh-footer-contact a {
  color: #555;
}

@media (max-width: 1100px) {
  .gh-layout {
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 16px;
  }

  .gh-left {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px 18px;
    padding: 0;
  }

  .gh-left .gh-nav-group {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: 0;
  }

  .gh-main,
  .gh-right {
    padding-left: 0;
    padding-right: 0;
  }

  .gh-topbar-in {
    gap: 14px;
  }

  .gh-nav {
    gap: 12px;
  }

  .gh-search {
    width: 140px;
  }
}

@media (max-width: 820px) {
  .gh-topbar {
    position: static;
  }

  .gh-topbar-in {
    flex-wrap: wrap;
    padding: 10px 0;
  }

  .gh-nav {
    order: 3;
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .gh-search {
    margin-left: auto;
    width: 160px;
  }

  .gh-layout {
    grid-template-columns: 1fr;
    padding-top: 16px;
  }

  .gh-main,
  .gh-left,
  .gh-right {
    padding-left: 0;
    padding-right: 0;
  }

  .gh-main {
    order: 1;
  }

  .gh-left {
    order: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 18px;
  }

  .gh-left .gh-nav-group {
    margin-bottom: 0;
  }

  .gh-right {
    order: 3;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .gh-right .gh-widget,
  .gh-right .gh-about-box {
    margin-bottom: 0;
  }

  .gh-article-main {
    max-width: none;
  }
}

@media (max-width: 560px) {
  .gh-container {
    width: 100%;
    max-width: calc(100% - 24px);
  }

  .gh-logo-text small {
    display: none;
  }

  .gh-search {
    order: 2;
    width: 100%;
  }

  .gh-nav {
    order: 3;
  }

  .gh-left {
    grid-template-columns: 1fr;
  }

  .gh-right {
    grid-template-columns: 1fr;
  }

  .gh-post {
    grid-template-columns: 1fr;
  }

  .gh-post-side {
    display: none;
  }

  .gh-provider-grid,
  .gh-check-grid,
  .gh-related-list {
    grid-template-columns: 1fr;
  }

  .gh-provider-facts {
    grid-template-columns: 1fr;
  }

  .gh-provider-facts > div {
    border-right: 0;
    border-bottom: 1px solid var(--gh-line);
  }

  .gh-provider-facts > div:last-child {
    border-bottom: 0;
  }

  .gh-footer .gh-container {
    flex-direction: column;
  }

  .gh-hotline {
    display: none;
  }

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

  .gh-contact-call {
    align-items: flex-start;
  }

  .gh-home-intro h1,
  .gh-page-head h1,
  .gh-article h1 {
    font-size: 28px;
  }

  .gh-article-body table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .gh-article-body th,
  .gh-article-body td {
    min-width: 120px;
  }
}

@media (min-width: 1600px) {
  .gh-provider-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* Phase 1 information architecture */
.gh-home-status {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 12px;
  color: #777;
  font-size: 12px;
}

.gh-home-status strong {
  color: var(--gh-blue);
  font-size: 15px;
}

.gh-category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 10px;
  margin-top: 18px;
}

.gh-category-card {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 5px 11px;
  align-items: center;
  padding: 13px 14px;
  border: 1px solid var(--gh-line);
  background: #fff;
  color: var(--gh-ink);
}

.gh-category-card:hover {
  border-color: #b9c9d3;
  background: #fbfcfd;
  text-decoration: none;
}

.gh-category-mark {
  grid-row: 1 / span 2;
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--gh-blue);
  color: #fff;
  font-family: "Songti SC", "STSong", serif;
  font-size: 17px;
}

.gh-category-card:nth-child(2) .gh-category-mark {
  background: #3d7a62;
}

.gh-category-card:nth-child(3) .gh-category-mark {
  background: #b1783f;
}

.gh-category-card:nth-child(4) .gh-category-mark {
  background: #59697a;
}

.gh-category-copy {
  min-width: 0;
}

.gh-category-copy strong {
  display: block;
  color: var(--gh-ink);
  font-size: 14px;
}

.gh-category-copy small {
  display: block;
  margin-top: 3px;
  color: #888;
  font-size: 11px;
  line-height: 1.55;
}

.gh-category-meta {
  grid-column: 2;
  color: #a0a8ae;
  font-size: 10px;
}

.gh-post-visual {
  overflow: hidden;
  padding: 0;
}

.gh-post-thumb-image {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.gh-author-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #777;
}

.gh-author-link:hover {
  color: var(--gh-blue);
  text-decoration: none;
}

.gh-article-cover {
  margin: 20px 0 0;
}

.gh-article-cover-image {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--gh-line);
}

.gh-article-body figure {
  margin: 24px 0;
}

.gh-article-body figure img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--gh-line);
  background: #fff;
}

.gh-article-body figcaption {
  margin-top: 7px;
  color: #8a9399;
  font-size: 12px;
  line-height: 1.7;
  text-align: center;
}

.gh-author-box {
  display: flex;
  gap: 13px;
  margin-top: 20px;
  padding: 16px 17px;
  border-top: 1px solid var(--gh-line);
  border-bottom: 1px solid var(--gh-line);
  background: #fbfcfd;
}

.gh-author-avatar {
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #6b8c78;
  color: #fff;
  font-family: "Songti SC", "STSong", serif;
  font-size: 17px;
}

.gh-author-box strong {
  display: block;
  margin-bottom: 4px;
  color: var(--gh-ink);
  font-size: 15px;
}

.gh-author-box p {
  margin: 0 0 5px;
  color: #777;
  font-size: 12px;
  line-height: 1.75;
}

.gh-post-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 24px;
  padding-top: 14px;
  border-top: 1px solid var(--gh-line);
  font-size: 12px;
}

.gh-post-nav > div {
  min-width: 0;
}

.gh-post-nav > div:last-child {
  text-align: right;
}

.gh-post-nav span {
  display: block;
  margin-bottom: 4px;
  color: #9aa2a8;
}

.gh-post-nav a {
  color: #4d5a62;
  line-height: 1.65;
}

.gh-category-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 14px;
}

.gh-category-chips a {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 9px;
  border: 1px solid var(--gh-line);
  background: #fff;
  color: #66727a;
  font-size: 12px;
}

.gh-category-chips a:hover,
.gh-category-chips a.is-current {
  border-color: #9fb7c6;
  background: #f3f8fb;
  color: var(--gh-blue);
  text-decoration: none;
}

.gh-category-chips small {
  color: #a5adb2;
  font-size: 10px;
}

.gh-related-mini small {
  display: block;
  margin-top: 2px;
  color: #a0a8ae;
  font-size: 10px;
}

.gh-footer-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr auto auto;
  align-items: center;
  gap: 18px;
}

.gh-footer-brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.gh-footer-brand strong {
  color: #555;
  font-size: 13px;
  letter-spacing: .08em;
}

.gh-footer-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 5px 11px;
}

.gh-footer-policy {
  justify-content: flex-end;
}

@media (max-width: 1000px) {
  .gh-footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .gh-footer-policy {
    justify-content: flex-start;
  }
}

@media (max-width: 560px) {
  .gh-home-status {
    display: block;
  }

  .gh-home-status span {
    display: block;
    margin-top: 3px;
  }

  .gh-category-grid,
  .gh-post-nav,
  .gh-footer-grid {
    grid-template-columns: 1fr;
  }

  .gh-post-nav > div:last-child {
    padding-top: 9px;
    border-top: 1px solid var(--gh-line);
    text-align: left;
  }

  .gh-hotline {
    display: inline-flex;
    margin-left: auto;
    padding-left: 0;
    border-left: 0;
  }

  .gh-hotline span {
    display: none;
  }

  .gh-hotline strong {
    font-size: 12px;
  }
}