:root {
  --seo-ink: #0b0b08;
  --seo-panel: #17150e;
  --seo-gold-light: #fff1d6;
  --seo-gold: #fbcf7a;
  --seo-gold-deep: #aa792d;
  --seo-muted: #a99d88;
  --seo-copy: #e8dfce;
  --seo-line: rgba(255, 235, 188, 0.2);
  --seo-width: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--seo-ink);
  color: var(--seo-gold-light);
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background: var(--seo-ink);
  color: var(--seo-gold-light);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
}

.seo-container {
  width: min(var(--seo-width), calc(100% - 40px));
  margin: 0 auto;
}

.seo-reading-width {
  max-width: 840px;
}

.seo-breadcrumb {
  min-height: 52px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--seo-muted);
  font-size: 13px;
}

.seo-breadcrumb a {
  text-decoration: none;
}

.seo-hero,
.seo-home-hero {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: #0b0b08 url('/images/home/index-bg.webp') center / cover no-repeat;
}

.seo-hero::before,
.seo-home-hero::before {
  position: absolute;
  inset: 0;
  background: rgba(8, 8, 6, 0.25);
  content: '';
  pointer-events: none;
}

.seo-hero-content,
.seo-home-hero .seo-container {
  position: relative;
  z-index: 1;
  padding: 90px 0 100px;
}

.seo-eyebrow,
.seo-section-label {
  margin: 0 0 16px;
  color: var(--seo-gold-deep);
  font-size: 13px;
  font-weight: 700;
}

.seo-hero h1,
.seo-home-hero h1 {
  max-width: 880px;
  margin: 0;
  background: linear-gradient(152deg, var(--seo-gold-light) 8%, var(--seo-gold) 86%);
  background-clip: text;
  font-family: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", serif;
  font-size: 54px;
  font-weight: 700;
  line-height: 1.22;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.seo-answer-summary,
.seo-home-hero p:not(.seo-eyebrow) {
  max-width: 780px;
  margin: 26px 0 34px;
  color: var(--seo-copy);
  font-size: 18px;
  line-height: 1.9;
}

.seo-primary-action {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  border: 1px solid var(--seo-gold);
  border-radius: 4px;
  background: linear-gradient(180deg, #fff1d6 0%, #fbcf7a 100%);
  color: #1d0c00;
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
}

.seo-primary-action:hover,
.seo-primary-action:focus-visible {
  filter: brightness(1.08);
}

.seo-topic-hub-hero {
  border-bottom: 1px solid var(--seo-line);
  background: #0b0b08 url('/images/home/index-bg.webp') center / cover no-repeat;
}

.seo-topic-hub-hero > .seo-container {
  padding: 92px 0 102px;
}

.seo-topic-hub-hero h1,
.seo-topic-index h2,
.seo-topic-overview h2 {
  margin: 0;
  color: var(--seo-gold-light);
  font-family: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", serif;
  font-size: 44px;
  line-height: 1.35;
}

.seo-topic-hub-hero p:not(.seo-eyebrow) {
  max-width: 780px;
  margin: 24px 0 0;
  color: var(--seo-copy);
  font-size: 18px;
  line-height: 1.9;
}

.seo-topic-index {
  padding: 88px 0 100px;
  background: var(--seo-ink);
}

.seo-topic-jump-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 34px 0 66px;
}

.seo-topic-jump-links a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--seo-line);
  border-radius: 4px;
  color: var(--seo-copy);
  font-size: 14px;
  text-decoration: none;
}

.seo-topic-jump-links a:hover,
.seo-topic-jump-links a:focus-visible,
.seo-topic-card:hover,
.seo-topic-card:focus-visible {
  border-color: var(--seo-gold);
}

.seo-topic-jump-links small {
  color: var(--seo-gold);
  font-size: 12px;
}

.seo-topic-group + .seo-topic-group {
  margin-top: 66px;
}

.seo-topic-group-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 24px;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--seo-line);
}

.seo-topic-group-heading h3 {
  margin: 0;
  color: var(--seo-gold-light);
  font-family: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", serif;
  font-size: 28px;
}

.seo-topic-group-heading span {
  color: var(--seo-muted);
  font-size: 13px;
}

.seo-topic-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.seo-topic-card {
  min-height: 220px;
  display: flex;
  flex-direction: column;
  padding: 22px;
  border: 1px solid var(--seo-line);
  border-radius: 6px;
  color: var(--seo-copy);
  text-decoration: none;
}

.seo-topic-card > span,
.seo-topic-card > small {
  color: var(--seo-muted);
  font-size: 12px;
}

.seo-topic-card h4 {
  margin: 14px 0 0;
  color: var(--seo-gold-light);
  font-size: 20px;
  line-height: 1.45;
}

.seo-topic-card p {
  margin: 12px 0 20px;
  color: var(--seo-copy);
  font-size: 14px;
  line-height: 1.75;
}

.seo-topic-card > small {
  margin-top: auto;
  color: var(--seo-gold);
}

.seo-topic-overview {
  padding: 80px 0;
  border-top: 1px solid rgba(255, 235, 188, 0.08);
  border-bottom: 1px solid rgba(255, 235, 188, 0.08);
  background: var(--seo-panel);
}

.seo-topic-overview h2 {
  font-size: 38px;
}

.seo-topic-overview > .seo-container > p:not(.seo-section-label) {
  margin: 22px 0;
  color: var(--seo-copy);
  font-size: 17px;
  line-height: 1.9;
}

.seo-topic-overview ul {
  display: grid;
  gap: 14px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.seo-topic-overview li {
  position: relative;
  padding-left: 24px;
  color: var(--seo-copy);
  font-size: 16px;
  line-height: 1.7;
}

.seo-topic-overview li::before {
  position: absolute;
  top: 10px;
  left: 0;
  width: 8px;
  height: 8px;
  border: 1px solid var(--seo-gold);
  transform: rotate(45deg);
  content: '';
}

.seo-product-section {
  background: var(--seo-panel) url('/images/home/remind-bg.webp') center / cover no-repeat;
}

.seo-product-layout {
  min-height: 680px;
  display: grid;
  grid-template-columns: minmax(0, 45fr) minmax(0, 55fr);
  align-items: center;
  gap: 72px;
  padding: 78px 0;
}

.seo-product-media {
  min-height: 510px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.seo-product-media img {
  width: auto;
  height: auto;
  max-width: min(100%, 480px);
  max-height: 590px;
  object-fit: contain;
  filter: drop-shadow(0 24px 40px rgba(0, 0, 0, 0.32));
}

.seo-product-copy h2,
.seo-content-section h2,
.seo-related h2,
.seo-final-action h2,
.seo-home-tools h2,
.seo-home-about h2 {
  margin: 0;
  color: var(--seo-gold-light);
  font-family: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", serif;
  font-size: 38px;
  line-height: 1.35;
}

.seo-product-copy > p:not(.seo-section-label) {
  margin: 22px 0;
  color: var(--seo-copy);
  font-size: 17px;
  line-height: 1.9;
}

.seo-product-copy ul {
  display: grid;
  gap: 14px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.seo-product-copy li {
  position: relative;
  padding-left: 24px;
  color: var(--seo-copy);
  font-size: 16px;
  line-height: 1.7;
}

.seo-product-copy li::before {
  position: absolute;
  top: 10px;
  left: 0;
  width: 8px;
  height: 8px;
  border: 1px solid var(--seo-gold);
  transform: rotate(45deg);
  content: '';
}

.seo-article {
  background: var(--seo-ink);
}

.seo-content-section {
  border-top: 1px solid rgba(255, 235, 188, 0.08);
  padding: 76px 0;
}

.seo-content-section:nth-child(even) {
  background: rgba(255, 255, 255, 0.018);
}

.seo-content-section p:not(.seo-section-label) {
  margin: 24px 0 0;
  color: var(--seo-copy);
  font-size: 17px;
  line-height: 2;
}

.seo-table-scroll {
  margin-top: 30px;
  overflow-x: auto;
}

.seo-table-section table {
  width: 100%;
  border-collapse: collapse;
  color: var(--seo-copy);
  font-size: 15px;
  line-height: 1.6;
}

.seo-table-section th,
.seo-table-section td {
  padding: 16px 18px;
  border: 1px solid var(--seo-line);
  text-align: left;
  vertical-align: top;
}

.seo-table-section th {
  background: rgba(251, 207, 122, 0.1);
  color: var(--seo-gold-light);
}

.seo-faq-list {
  margin-top: 30px;
  border-top: 1px solid var(--seo-line);
}

.seo-faq details {
  border-bottom: 1px solid var(--seo-line);
}

.seo-faq summary {
  padding: 22px 0;
  color: var(--seo-gold-light);
  font-size: 18px;
  font-weight: 700;
  cursor: pointer;
}

.seo-faq details p {
  margin-top: 0;
  padding: 0 0 24px;
}

.seo-related {
  padding: 80px 0;
  border-top: 1px solid var(--seo-line);
  background: var(--seo-panel);
}

.seo-related-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 34px;
}

.seo-related-grid a {
  min-height: 150px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 22px;
  border: 1px solid var(--seo-line);
  border-radius: 6px;
  color: var(--seo-copy);
  text-decoration: none;
}

.seo-related-grid a:hover,
.seo-related-grid a:focus-visible {
  border-color: var(--seo-gold);
}

.seo-related-grid span,
.seo-related-grid small {
  color: var(--seo-muted);
  font-size: 12px;
}

.seo-related-grid strong {
  color: var(--seo-gold-light);
  font-size: 20px;
}

.seo-final-action {
  padding: 84px 0;
  background: #0b0b08 url('/images/home/calendar-bg.webp') center / cover no-repeat;
  text-align: center;
}

.seo-final-action p {
  margin: 18px 0 28px;
  color: var(--seo-copy);
  font-size: 16px;
}

.seo-home-tools {
  padding: 90px 0;
  background: var(--seo-panel);
}

.seo-home-tool-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 40px;
}

.seo-home-tool-grid > a {
  min-height: 250px;
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  align-items: center;
  gap: 28px;
  padding: 26px;
  border: 1px solid var(--seo-line);
  border-radius: 6px;
  color: var(--seo-copy);
  text-decoration: none;
}

.seo-home-tool-grid img {
  width: 160px;
  height: 200px;
  object-fit: contain;
}

.seo-home-tool-grid h3 {
  margin: 0 0 12px;
  color: var(--seo-gold-light);
  font-size: 24px;
}

.seo-home-tool-grid p {
  margin: 0;
  color: var(--seo-muted);
  font-size: 15px;
  line-height: 1.8;
}

.seo-home-about {
  padding: 90px 0;
  background: var(--seo-ink);
}

.seo-home-about p:not(.seo-section-label) {
  margin: 24px 0 0;
  color: var(--seo-copy);
  font-size: 17px;
  line-height: 2;
}

.seo-business-hero,
.seo-classic-hub-hero,
.seo-classic-detail-hero {
  background: #0b0b08 url('/images/home/index-bg.webp') center / cover no-repeat;
}

.seo-business-hero-inner,
.seo-classic-hub-hero > .seo-container {
  padding: 100px 0 110px;
}

.seo-business-hero h1,
.seo-classic-hub-hero h1,
.seo-classic-detail-copy h1,
.seo-error-content h1 {
  margin: 0;
  color: var(--seo-gold-light);
  font-family: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", serif;
  font-size: 52px;
  line-height: 1.25;
}

.seo-business-hero p:not(.seo-eyebrow),
.seo-classic-hub-hero p:not(.seo-eyebrow),
.seo-classic-detail-copy > p:not(.seo-eyebrow) {
  max-width: 780px;
  margin: 24px 0 32px;
  color: var(--seo-copy);
  font-size: 18px;
  line-height: 1.9;
}

.seo-business-summary {
  padding: 82px 0;
  background: var(--seo-ink);
}

.seo-business-summary h2,
.seo-classic-library h2 {
  margin: 0;
  color: var(--seo-gold-light);
  font-family: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", serif;
  font-size: 38px;
  line-height: 1.35;
}

.seo-business-summary ul {
  display: grid;
  gap: 16px;
  margin: 30px 0 0;
  padding: 0;
  color: var(--seo-copy);
  font-size: 17px;
  line-height: 1.8;
  list-style: none;
}

.seo-business-summary li {
  position: relative;
  padding-left: 26px;
}

.seo-business-summary li::before {
  position: absolute;
  top: 10px;
  left: 0;
  width: 9px;
  height: 9px;
  border: 1px solid var(--seo-gold);
  transform: rotate(45deg);
  content: '';
}

.seo-classic-library {
  padding: 88px 0 100px;
  background: var(--seo-ink);
}

.seo-classic-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 40px;
}

.seo-classic-card {
  min-height: 260px;
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr);
  align-items: center;
  gap: 24px;
  padding: 24px;
  border: 1px solid var(--seo-line);
  border-radius: 6px;
  color: var(--seo-copy);
  text-decoration: none;
}

.seo-classic-card:hover,
.seo-classic-card:focus-visible {
  border-color: var(--seo-gold);
  background: rgba(251, 207, 122, 0.04);
}

.seo-classic-card h3 {
  margin: 0 0 10px;
  color: var(--seo-gold-light);
  font-size: 22px;
  line-height: 1.4;
}

.seo-classic-card p,
.seo-classic-card small {
  display: block;
  margin: 0;
  color: var(--seo-muted);
  font-size: 13px;
  line-height: 1.7;
}

.seo-classic-card small {
  margin-top: 10px;
}

.seo-classic-cover {
  position: relative;
  width: 122px;
  height: 172px;
  flex: 0 0 122px;
}

.seo-classic-cover img {
  width: 122px;
  height: 172px;
  object-fit: fill;
}

.seo-classic-cover strong {
  position: absolute;
  top: 18px;
  right: 16px;
  width: 24px;
  color: #3d2914;
  font-family: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", serif;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  word-break: break-all;
}

.seo-classic-detail-layout {
  min-height: 620px;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  align-items: center;
  gap: 76px;
  padding: 82px 0 96px;
}

.seo-classic-detail-layout > .seo-classic-cover {
  width: 244px;
  height: 344px;
}

.seo-classic-detail-layout > .seo-classic-cover img {
  width: 244px;
  height: 344px;
}

.seo-classic-detail-layout > .seo-classic-cover strong {
  top: 36px;
  right: 32px;
  width: 46px;
  font-size: 28px;
}

.seo-classic-detail-copy dl {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 28px 0 32px;
}

.seo-classic-detail-copy dl div {
  padding: 16px;
  border-top: 1px solid var(--seo-line);
  border-bottom: 1px solid var(--seo-line);
}

.seo-classic-detail-copy dt {
  margin-bottom: 8px;
  color: var(--seo-muted);
  font-size: 12px;
}

.seo-classic-detail-copy dd {
  margin: 0;
  color: var(--seo-gold-light);
  font-size: 15px;
}

.seo-classic-catalog-note {
  margin: 18px 0 0;
  color: var(--seo-muted);
  font-size: 14px;
  line-height: 1.8;
}

.seo-classic-catalog {
  columns: 3 280px;
  column-gap: 50px;
  margin: 34px 0 0;
  padding-left: 24px;
  color: var(--seo-copy);
}

.seo-classic-catalog li {
  break-inside: avoid;
  margin: 0 0 14px;
  padding-left: 6px;
  font-size: 15px;
  line-height: 1.65;
}

.seo-error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 170px 0 90px;
  background: #0b0b08 url('/images/home/index-bg.webp') center / cover no-repeat;
}

.seo-error-content {
  text-align: center;
}

.seo-error-code {
  margin: 0 0 12px;
  color: var(--seo-gold);
  font-size: 96px;
  font-weight: 800;
  line-height: 1;
}

.seo-error-content > p:not(.seo-error-code) {
  margin: 22px auto 32px;
  color: var(--seo-copy);
  font-size: 17px;
  line-height: 1.8;
}

.seo-error-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
}

.seo-secondary-action {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  border: 1px solid var(--seo-line);
  border-radius: 4px;
  color: var(--seo-gold-light);
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
}

.seo-secondary-action:hover,
.seo-secondary-action:focus-visible {
  border-color: var(--seo-gold);
}

@media (max-width: 900px) {
  .seo-product-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .seo-product-media {
    min-height: 0;
  }

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

  .seo-home-tool-grid {
    grid-template-columns: 1fr;
  }

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

  .seo-classic-detail-layout {
    grid-template-columns: 210px minmax(0, 1fr);
    gap: 42px;
  }

  .seo-classic-detail-layout > .seo-classic-cover {
    width: 196px;
    height: 276px;
  }

  .seo-classic-detail-layout > .seo-classic-cover img {
    width: 196px;
    height: 276px;
  }

  .seo-classic-detail-layout > .seo-classic-cover strong {
    top: 30px;
    right: 26px;
    width: 38px;
    font-size: 23px;
  }
}

@media (max-width: 600px) {
  .seo-container {
    width: calc(100% - 30px);
  }

  .seo-business-hero h1,
  .seo-classic-hub-hero h1,
  .seo-classic-detail-copy h1,
  .seo-error-content h1 {
    font-size: 36px;
  }

  .seo-classic-grid {
    grid-template-columns: 1fr;
  }

  .seo-classic-card {
    min-height: 220px;
    grid-template-columns: 110px minmax(0, 1fr);
    gap: 18px;
    padding: 18px;
  }

  .seo-classic-card .seo-classic-cover,
  .seo-classic-card .seo-classic-cover img {
    width: 102px;
    height: 144px;
  }

  .seo-classic-card .seo-classic-cover strong {
    top: 16px;
    right: 13px;
    width: 21px;
    font-size: 14px;
  }

  .seo-classic-detail-layout {
    grid-template-columns: 1fr;
    justify-items: center;
    gap: 34px;
    padding: 64px 0 74px;
  }

  .seo-classic-detail-copy {
    text-align: center;
  }

  .seo-classic-detail-copy dl {
    grid-template-columns: 1fr;
    text-align: left;
  }

  .seo-classic-catalog {
    columns: 1;
  }

  .seo-error-code {
    font-size: 72px;
  }

  .seo-error-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .seo-breadcrumb {
    overflow-x: auto;
    white-space: nowrap;
  }

  .seo-hero,
  .seo-home-hero {
    min-height: 500px;
  }

  .seo-hero-content,
  .seo-home-hero .seo-container {
    padding: 72px 0 80px;
  }

  .seo-hero h1,
  .seo-home-hero h1 {
    font-size: 36px;
  }

  .seo-answer-summary,
  .seo-home-hero p:not(.seo-eyebrow) {
    font-size: 16px;
  }

  .seo-product-layout {
    padding: 62px 0;
  }

  .seo-product-media img {
    max-width: min(82vw, 390px);
    max-height: 540px;
  }

  .seo-product-copy h2,
  .seo-content-section h2,
  .seo-related h2,
  .seo-final-action h2,
  .seo-home-tools h2,
  .seo-home-about h2 {
    font-size: 28px;
  }

  .seo-content-section,
  .seo-related,
  .seo-final-action,
  .seo-home-tools,
  .seo-home-about {
    padding: 62px 0;
  }

  .seo-related-grid {
    grid-template-columns: 1fr;
  }

  .seo-home-tool-grid > a {
    min-height: 0;
    grid-template-columns: 100px minmax(0, 1fr);
    gap: 18px;
    padding: 18px;
  }

  .seo-home-tool-grid img {
    width: 100px;
    height: 130px;
  }

}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

/* Pure-static homepage. The Vue business application starts only after a user follows a business link. */
.seo-showcase {
  overflow-x: hidden;
  background: var(--seo-ink);
  color: var(--seo-gold-light);
  font-family: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", serif;
}

.seo-showcase-hero {
  min-height: 770px;
  background: var(--seo-ink) url('/images/home/index-bg.webp') center / cover no-repeat;
}

.seo-showcase-hero-inner {
  min-height: 770px;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  align-items: center;
  gap: 64px;
}

.seo-showcase-hero-copy {
  padding: 40px 0 70px;
}

.seo-showcase-hero h1 {
  margin: 0;
  background: linear-gradient(152deg, var(--seo-gold-light) 8%, var(--seo-gold) 86%);
  background-clip: text;
  color: var(--seo-gold-light);
  font-size: 64px;
  line-height: 1.18;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.seo-showcase-hero-subtitle {
  max-width: 620px;
  margin: 24px 0 38px;
  color: var(--seo-muted);
  font-size: 17px;
  line-height: 1.8;
}

.seo-showcase-downloads {
  display: flex;
  gap: 24px;
}

.seo-showcase-download {
  width: 180px;
  color: var(--seo-gold-light);
  text-align: center;
  text-decoration: none;
}

.seo-showcase-download img {
  width: 180px;
  height: 180px;
  padding: 8px;
  border-radius: 8px;
  background: #fff;
  object-fit: contain;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.22);
}

.seo-showcase-download span {
  display: block;
  margin-top: 10px;
  font-size: 16px;
}

.seo-showcase-hero-art,
.seo-showcase-feature-art {
  display: flex;
  align-items: center;
  justify-content: center;
}

.seo-showcase-hero-art img {
  width: min(100%, 470px);
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 28px 48px rgba(0, 0, 0, 0.35));
}

.seo-showcase-feature {
  position: relative;
  overflow: hidden;
  border-top: 1px solid rgba(255, 235, 188, 0.05);
  background: var(--seo-panel) url('/images/home/remind-bg.webp') center / cover no-repeat;
}

.seo-showcase-feature:first-child {
  background-image: url('/images/home/calendar-bg.webp');
}

.seo-showcase-feature::before {
  position: absolute;
  inset: 0;
  background: rgba(10, 9, 6, 0.18);
  content: '';
  pointer-events: none;
}

.seo-showcase-feature-inner {
  position: relative;
  z-index: 1;
  min-height: 650px;
  display: grid;
  grid-template-columns: minmax(0, 45fr) minmax(0, 55fr);
  align-items: center;
  gap: 64px;
  padding: 84px 0;
}

.seo-showcase-feature.is-reversed .seo-showcase-feature-inner {
  direction: rtl;
}

.seo-showcase-feature.is-reversed .seo-showcase-feature-inner > * {
  direction: ltr;
}

.seo-showcase-feature-art {
  min-height: 520px;
}

.seo-showcase-feature-art img {
  width: auto;
  height: auto;
  max-width: min(100%, 500px);
  max-height: 660px;
  object-fit: contain;
  filter: drop-shadow(0 24px 36px rgba(0, 0, 0, 0.28));
}

.seo-showcase-feature-copy {
  width: 100%;
  min-width: 0;
}

.seo-showcase-feature-copy h2 {
  margin: 0;
  font-size: 44px;
  line-height: 1.15;
  white-space: nowrap;
}

.seo-showcase-feature-copy h2 a {
  background: linear-gradient(152deg, var(--seo-gold-light) 8%, var(--seo-gold) 86%);
  background-clip: text;
  color: var(--seo-gold-light);
  text-decoration: none;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.seo-showcase-subtitle {
  margin: 20px 0 40px;
  color: var(--seo-muted);
  font-size: 18px;
  line-height: 28px;
  white-space: nowrap;
}

.seo-showcase-list {
  display: grid;
  gap: 32px;
}

.seo-showcase-item {
  display: grid;
  grid-template-columns: 60px minmax(0, 1fr);
  align-items: center;
  gap: 18px;
}

.seo-showcase-item > div {
  min-width: 0;
  height: 60px;
  display: grid;
  grid-template-rows: 28px 28px;
  row-gap: 4px;
}

.seo-showcase-item h3 {
  margin: 0;
  color: var(--seo-gold-light);
  font-size: 22px;
  font-weight: 600;
  line-height: 28px;
  white-space: nowrap;
}

.seo-showcase-item p {
  margin: 0;
  color: var(--seo-muted);
  font-size: 14px;
  line-height: 28px;
  white-space: nowrap;
}

.seo-showcase-glyph {
  width: 60px;
  height: 60px;
  display: grid;
  place-items: center;
  background: url('/images/home/feature-icon.png') center / contain no-repeat;
}

.seo-showcase-glyph > span {
  background: linear-gradient(152deg, var(--seo-gold-light) 8%, var(--seo-gold) 86%);
  background-clip: text;
  font-size: 25px;
  font-weight: 800;
  line-height: 1;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

@media (max-width: 1100px) {
  .seo-showcase-hero-inner,
  .seo-showcase-feature-inner {
    gap: 38px;
  }

  .seo-showcase-feature-copy h2 {
    font-size: 38px;
  }

  .seo-showcase-subtitle {
    font-size: 15px;
  }

  .seo-showcase-item p {
    font-size: 12px;
  }
}

@media (max-width: 820px) {
  .seo-showcase-hero,
  .seo-showcase-hero-inner {
    min-height: auto;
  }

  .seo-showcase-hero-inner {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 64px 0 80px;
  }

  .seo-showcase-hero-copy {
    padding: 18px 0 0;
    text-align: center;
  }

  .seo-showcase-hero h1 {
    font-size: 48px;
  }

  .seo-showcase-hero-subtitle {
    margin-inline: auto;
    font-size: 15px;
  }

  .seo-showcase-downloads {
    justify-content: center;
  }

  .seo-showcase-hero-art {
    order: -1;
  }

  .seo-showcase-hero-art img {
    width: min(78vw, 410px);
  }

  .seo-showcase-feature-inner,
  .seo-showcase-feature.is-reversed .seo-showcase-feature-inner {
    grid-template-columns: 1fr;
    direction: ltr;
    gap: 24px;
    padding: 64px 0 72px;
  }

  .seo-showcase-feature.is-reversed .seo-showcase-feature-inner > * {
    direction: ltr;
  }

  .seo-showcase-feature-art {
    min-height: 0;
  }

  .seo-showcase-feature-art img {
    max-width: min(78vw, 430px);
    max-height: 600px;
  }

  .seo-showcase-feature-copy h2 {
    font-size: 34px;
  }

  .seo-showcase-subtitle {
    margin-bottom: 34px;
    font-size: 13px;
  }

  .seo-showcase-list {
    gap: 30px;
  }

  .seo-showcase-item p {
    font-size: 11px;
  }
}

@media (max-width: 600px) {
  .seo-showcase-hero h1 {
    font-size: 42px;
  }

  .seo-showcase-feature-copy h2 {
    font-size: 30px;
  }

  .seo-showcase-subtitle {
    font-size: 11px;
  }

  .seo-showcase-item {
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 12px;
  }

  .seo-showcase-item > div {
    height: 52px;
    grid-template-rows: 22px 26px;
    row-gap: 4px;
  }

  .seo-showcase-item h3 {
    font-size: 18px;
    line-height: 22px;
  }

  .seo-showcase-item p {
    font-size: 10px;
    line-height: 26px;
  }

  .seo-showcase-glyph {
    width: 52px;
    height: 52px;
  }

  .seo-showcase-glyph > span {
    font-size: 22px;
  }
}

@media (max-width: 480px) {
  .seo-showcase-hero h1 {
    font-size: 38px;
  }

  .seo-showcase-hero-subtitle {
    font-size: 13px;
  }

  .seo-showcase-download,
  .seo-showcase-download img {
    width: 138px;
  }

  .seo-showcase-download img {
    height: 138px;
  }

  .seo-showcase-feature-copy h2 {
    font-size: 25px;
  }

  .seo-showcase-subtitle {
    font-size: 10px;
  }

  .seo-showcase-item {
    grid-template-columns: 46px minmax(0, 1fr);
    gap: 10px;
  }

  .seo-showcase-item > div {
    height: 46px;
    grid-template-rows: 20px 22px;
    row-gap: 4px;
  }

  .seo-showcase-item h3 {
    font-size: 17px;
    line-height: 20px;
  }

  .seo-showcase-item p {
    font-size: 8px;
    line-height: 22px;
  }

  .seo-showcase-glyph {
    width: 46px;
    height: 46px;
  }

  .seo-showcase-glyph > span {
    font-size: 20px;
  }
}

/* Static knowledge hubs and term pages. */
.seo-home-knowledge,
.seo-knowledge-index {
  padding: 88px 0 100px;
  background: var(--seo-ink);
}

.seo-home-knowledge h2,
.seo-knowledge-index > .seo-container > h2,
.seo-knowledge-group h3,
.seo-knowledge-detail-layout h1 {
  margin: 0;
  color: var(--seo-gold-light);
  font-family: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", serif;
  font-size: 38px;
  line-height: 1.35;
}

.seo-home-knowledge-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 38px;
}

.seo-home-knowledge-grid a {
  min-height: 148px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 24px;
  border: 1px solid var(--seo-line);
  border-radius: 6px;
  color: var(--seo-copy);
  text-decoration: none;
}

.seo-home-knowledge-grid a:hover,
.seo-home-knowledge-grid a:focus-visible {
  border-color: var(--seo-gold);
}

.seo-home-knowledge-grid strong {
  color: var(--seo-gold-light);
  font-size: 21px;
}

.seo-home-knowledge-grid span {
  color: var(--seo-muted);
  font-size: 14px;
  line-height: 1.75;
}

.seo-knowledge-hero,
.seo-knowledge-detail-hero {
  background: #0b0b08 url('/images/home/index-bg.webp') center / cover no-repeat;
}

.seo-knowledge-hero > .seo-container {
  padding: 100px 0 110px;
}

.seo-knowledge-hero h1 {
  margin: 0;
  color: var(--seo-gold-light);
  font-family: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", serif;
  font-size: 52px;
  line-height: 1.25;
}

.seo-knowledge-hero p:not(.seo-eyebrow) {
  max-width: 780px;
  margin: 24px 0 32px;
  color: var(--seo-copy);
  font-size: 18px;
  line-height: 1.9;
}

.seo-knowledge-jump-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 30px 0 54px;
}

.seo-knowledge-jump-links a {
  padding: 10px 16px;
  border: 1px solid var(--seo-line);
  border-radius: 4px;
  color: var(--seo-copy);
  font-size: 14px;
  text-decoration: none;
}

.seo-knowledge-jump-links a:hover,
.seo-knowledge-jump-links a:focus-visible {
  border-color: var(--seo-gold);
  color: var(--seo-gold-light);
}

.seo-knowledge-group {
  scroll-margin-top: 124px;
}

.seo-knowledge-group + .seo-knowledge-group {
  margin-top: 76px;
}

.seo-knowledge-group-heading {
  display: grid;
  grid-template-columns: minmax(220px, 0.75fr) minmax(0, 1.25fr);
  align-items: end;
  gap: 36px;
  margin-bottom: 26px;
}

.seo-knowledge-group-heading > p {
  margin: 0;
  color: var(--seo-muted);
  font-size: 15px;
  line-height: 1.8;
}

.seo-knowledge-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.seo-knowledge-card {
  min-height: 170px;
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  align-items: center;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--seo-line);
  border-radius: 6px;
  color: var(--seo-copy);
  text-decoration: none;
}

.seo-knowledge-card:hover,
.seo-knowledge-card:focus-visible {
  border-color: var(--seo-gold);
}

.seo-knowledge-card-copy {
  min-width: 0;
  display: grid;
  gap: 9px;
}

.seo-knowledge-card strong {
  color: var(--seo-gold-light);
  font-size: 20px;
}

.seo-knowledge-card small {
  display: -webkit-box;
  overflow: hidden;
  color: var(--seo-muted);
  font-size: 13px;
  line-height: 1.65;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.seo-knowledge-card em {
  grid-column: 2;
  color: var(--seo-gold-deep);
  font-size: 12px;
  font-style: normal;
}

.seo-knowledge-mark {
  width: 88px;
  height: 88px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(251, 207, 122, 0.48);
  border-radius: 50%;
  color: var(--seo-gold);
  font-family: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", serif;
  font-size: 40px;
  font-weight: 700;
}

.seo-knowledge-mark.is-compact {
  width: 54px;
  height: 54px;
  font-size: 26px;
}

.seo-hexagram {
  width: 86px;
  min-height: 138px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
}

.seo-hexagram.is-compact {
  width: 54px;
  min-height: 88px;
  gap: 6px;
}

.seo-hexagram-line {
  width: 100%;
  height: 8px;
  display: block;
  background: var(--seo-gold);
}

.seo-hexagram-line.is-broken {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  background: transparent;
}

.seo-hexagram-line.is-broken::before,
.seo-hexagram-line.is-broken::after {
  background: var(--seo-gold);
  content: '';
}

.seo-hexagram.is-compact .seo-hexagram-line {
  height: 5px;
}

.seo-hexagram.is-compact .seo-hexagram-line.is-broken {
  gap: 8px;
}

.seo-knowledge-detail-layout {
  min-height: 390px;
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  align-items: center;
  gap: 42px;
  padding: 74px 0;
}

.seo-knowledge-detail-mark {
  min-height: 160px;
  display: grid;
  place-items: center;
}

.seo-knowledge-detail-layout h1 {
  font-size: 52px;
}

.seo-knowledge-detail-layout > div:last-child > p:not(.seo-eyebrow):not(.seo-knowledge-english) {
  max-width: 820px;
  margin: 22px 0 0;
  color: var(--seo-copy);
  font-size: 18px;
  line-height: 1.9;
}

.seo-knowledge-english {
  margin: 14px 0 0;
  color: var(--seo-gold-deep);
  font-size: 13px;
  letter-spacing: 0;
}

.seo-knowledge-article {
  background: var(--seo-ink);
}

.seo-knowledge-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 28px 0 0;
}

.seo-knowledge-facts div {
  min-height: 112px;
  padding: 18px;
  border: 1px solid var(--seo-line);
}

.seo-knowledge-facts dt {
  color: var(--seo-muted);
  font-size: 13px;
}

.seo-knowledge-facts dd {
  margin: 12px 0 0;
  color: var(--seo-gold-light);
  font-size: 15px;
  line-height: 1.65;
}

.seo-knowledge-steps,
.seo-knowledge-caveats {
  display: grid;
  gap: 14px;
  margin: 30px 0 0;
  padding: 0;
  color: var(--seo-copy);
  font-size: 16px;
  line-height: 1.85;
  list-style: none;
}

.seo-knowledge-lenses {
  display: grid;
  gap: 12px;
  margin: 30px 0 0;
  padding: 0;
  color: var(--seo-copy);
  font-size: 16px;
  line-height: 1.85;
  list-style: none;
}

.seo-knowledge-lenses li {
  padding: 17px 20px;
  border-left: 2px solid var(--seo-gold-deep);
  background: rgba(255, 255, 255, 0.018);
}

.seo-knowledge-steps {
  counter-reset: knowledge-step;
}

.seo-knowledge-steps li,
.seo-knowledge-caveats li {
  position: relative;
  min-height: 48px;
  padding: 12px 18px 12px 58px;
  border: 1px solid rgba(255, 235, 188, 0.14);
  background: rgba(255, 255, 255, 0.018);
}

.seo-knowledge-steps li::before {
  position: absolute;
  top: 13px;
  left: 16px;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border: 1px solid var(--seo-gold);
  border-radius: 50%;
  color: var(--seo-gold);
  content: counter(knowledge-step);
  counter-increment: knowledge-step;
  font-size: 12px;
  line-height: 1;
}

.seo-knowledge-caveats li::before {
  position: absolute;
  top: 23px;
  left: 20px;
  width: 8px;
  height: 8px;
  border: 1px solid var(--seo-gold);
  transform: rotate(45deg);
  content: '';
}

@media (max-width: 900px) {
  .seo-topic-card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .seo-home-knowledge-grid,
  .seo-knowledge-card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .seo-knowledge-group-heading {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

@media (max-width: 640px) {
  .seo-topic-hub-hero > .seo-container {
    padding: 70px 0 78px;
  }

  .seo-topic-hub-hero h1,
  .seo-topic-index h2,
  .seo-topic-overview h2 {
    font-size: 30px;
  }

  .seo-topic-index,
  .seo-topic-overview {
    padding: 62px 0 70px;
  }

  .seo-topic-jump-links {
    margin-bottom: 48px;
  }

  .seo-topic-group-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }

  .seo-topic-card-grid {
    grid-template-columns: 1fr;
  }

  .seo-topic-card {
    min-height: 0;
  }

  .seo-home-knowledge,
  .seo-knowledge-index {
    padding: 62px 0 70px;
  }

  .seo-home-knowledge h2,
  .seo-knowledge-index > .seo-container > h2,
  .seo-knowledge-group h3 {
    font-size: 28px;
  }

  .seo-home-knowledge-grid,
  .seo-knowledge-card-grid,
  .seo-knowledge-facts {
    grid-template-columns: 1fr;
  }

  .seo-home-knowledge-grid {
    margin-top: 28px;
  }

  .seo-knowledge-hero > .seo-container {
    padding: 72px 0 80px;
  }

  .seo-knowledge-hero h1,
  .seo-knowledge-detail-layout h1 {
    font-size: 36px;
  }

  .seo-knowledge-hero p:not(.seo-eyebrow),
  .seo-knowledge-detail-layout > div:last-child > p:not(.seo-eyebrow):not(.seo-knowledge-english) {
    font-size: 16px;
  }

  .seo-knowledge-jump-links {
    margin-bottom: 40px;
  }

  .seo-knowledge-group + .seo-knowledge-group {
    margin-top: 58px;
  }

  .seo-knowledge-card {
    min-height: 142px;
  }

  .seo-knowledge-detail-layout {
    min-height: 0;
    grid-template-columns: 1fr;
    justify-items: center;
    gap: 24px;
    padding: 58px 0 66px;
    text-align: center;
  }

  .seo-knowledge-detail-mark {
    min-height: 112px;
  }

  .seo-knowledge-detail-layout .seo-knowledge-mark {
    width: 92px;
    height: 92px;
  }

  .seo-knowledge-detail-layout .seo-hexagram {
    min-height: 112px;
  }

  .seo-knowledge-facts div {
    min-height: 0;
  }

  .seo-knowledge-steps,
  .seo-knowledge-caveats,
  .seo-knowledge-lenses {
    font-size: 15px;
  }
}