:root {
  --surface-page: #f5f5f4;
  --text-primary: #202124;
  --text-secondary: #62646a;
  --border-default: #e2e2e4;
  --accent: #315b96;
  --focus-ring: #315b96;
  font-family: Inter, system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  color: var(--text-primary);
  background: var(--surface-page);
  line-height: 1.7;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  display: flex;
  min-height: 100vh;
  flex-direction: column;
}
a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
a:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 3px;
}
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  max-width: 1000px;
  width: 100%;
  margin: auto;
  padding: 24px;
}
header .brand {
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -0.01em;
}
header nav {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  font-size: 15px;
}
main {
  flex: 1;
  width: 100%;
  max-width: 900px;
  margin: 28px auto;
  padding: 0 24px 64px;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 13px;
  margin-bottom: 18px;
}
.breadcrumb span {
  color: #81848a;
}
h1 {
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
}
h2 {
  font-size: 20px;
  margin: 38px 0 14px;
}
.intro {
  color: #4d5057;
  font-size: 17px;
  max-width: 44em;
  margin: 0 0 8px;
}
.summary {
  color: #555961;
  background: #eef1f5;
  border-radius: 10px;
  padding: 14px 18px;
  margin: 20px 0 8px;
}
.years {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
}
.years a,
.action a {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 8px;
  background: #e9eff8;
  font-weight: 600;
}
.action a {
  color: #fff;
  background: var(--accent);
}
.page-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}
.page-actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 16px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
}
.page-actions a + a {
  background: #fff;
  color: var(--accent);
  box-shadow: inset 0 0 0 1px #b9c8dc;
}
.preview-paywall .action {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.preview-paywall .action a + a {
  color: var(--accent);
  background: #fff;
  box-shadow: inset 0 0 0 1px #b9c8dc;
}
.vocabulary-preview {
  margin: 0 0 28px;
}
.vocabulary-preview dt {
  padding-top: 16px;
  border-top: 1px solid var(--border-default);
  font-weight: 600;
  overflow-wrap: anywhere;
}
.vocabulary-preview dt span {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 400;
}
.vocabulary-preview dd {
  margin: 4px 0 16px;
  color: var(--text-secondary);
}
ul {
  padding-left: 20px;
}
li {
  line-height: 1.9;
  overflow-wrap: anywhere;
}
section {
  border-top: 1px solid var(--border-default);
  padding-top: 6px;
}
footer {
  border-top: 1px solid var(--border-default);
  max-width: 1000px;
  width: 100%;
  margin: auto;
  padding: 22px 24px 40px;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: var(--text-secondary);
  font-size: 13px;
}
.credit {
  margin-top: 40px;
  color: var(--text-secondary);
  font-size: 13px;
}
@media (max-width: 600px) {
  header {
    gap: 14px;
    align-items: flex-start;
    flex-direction: column;
    padding: 20px;
  }
  main {
    margin: 18px auto;
    padding: 0 20px 52px;
  }
  h1 {
    font-size: 27px;
  }
}

/* Guide hub and long-form articles */
.guide-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin: 30px 0 8px;
}
.guide-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--border-default);
  border-radius: 12px;
  background: #fff;
  color: inherit;
  text-decoration: none;
  transition: border-color 0.18s ease;
}
.guide-card:hover {
  border-color: #9baec9;
  text-decoration: none;
}
.guide-card img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #eceef1;
}
.guide-card-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 8px;
  padding: 18px 20px 20px;
}
.guide-card-body strong {
  color: var(--text-primary);
  font-size: 18px;
  line-height: 1.4;
}
.guide-card-body > span {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.65;
}
.guide-article {
  max-width: 760px;
  margin: 0 auto;
}
.guide-article h1 {
  margin-bottom: 10px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  margin: 0 0 24px;
  color: var(--text-secondary);
  font-size: 14px;
}
.article-meta span { white-space: nowrap; }
.article-figure {
  margin: 30px 0;
}
.article-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 12px;
  background: #eceef1;
}
.article-cover {
  margin: 0 0 26px;
}
.article-toc {
  margin: 0 0 28px;
  padding: 16px 20px;
  border-radius: 10px;
  background: #eef1f5;
  font-size: 14px;
}
.article-toc strong {
  display: block;
  margin-bottom: 6px;
  color: #315b96;
}
.article-toc ol {
  margin: 0;
  padding-left: 20px;
  columns: 2;
  column-gap: 24px;
}
.article-toc li {
  break-inside: avoid;
  margin: 4px 0;
  line-height: 1.6;
}
.article-toc a {
  color: #315b96;
}
.table-hint {
  display: none;
}
.table-wrap {
  margin: 24px 0;
  overflow-x: auto;
  scrollbar-color: #a8b7ca #edf0f4;
  scrollbar-width: thin;
  border: 1px solid var(--border-default);
  border-radius: 8px;
}
.table-wrap:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.table-wrap table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  background: #fff;
  font-size: 14px;
  line-height: 1.65;
}
.table-wrap th,
.table-wrap td {
  padding: 10px 12px;
  border-bottom: 1px solid #e9e9eb;
  text-align: left;
  vertical-align: top;
}
.table-wrap th {
  background: #f1f3f6;
  color: #315b96;
  font-weight: 600;
}
.table-wrap tr:last-child td {
  border-bottom: 0;
}
@media (max-width: 600px) {
  .table-hint {
    display: flex;
    justify-content: flex-end;
    gap: 6px;
    margin: 24px 0 8px;
    color: var(--text-secondary);
    font-size: 14px;
  }
  .table-hint + .table-wrap {
    margin-top: 0;
  }
}
.article-cta {
  margin: 44px 0 24px;
  padding: 22px;
  border-radius: 12px;
  background: #263f68;
  color: #fff;
}
.article-cta h2 {
  margin: 0 0 16px;
  color: #fff;
  font-size: 20px;
}
.article-cta p {
  margin: 0;
  color: #dce2eb;
}
.article-cta .action {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.article-cta .action a {
  color: #202124;
  background: #fff;
  font-weight: 600;
}
.article-related {
  margin: 36px 0;
  padding-top: 6px;
  border-top: 1px solid var(--border-default);
}
.article-related h2 {
  margin-top: 24px;
}
.article-related-link {
  display: block;
  padding: 16px 0;
  border-bottom: 1px solid var(--border-default);
  color: inherit;
  text-decoration: none;
}
.article-related-link strong {
  display: block;
  color: var(--text-primary);
  font-size: 16px;
}
.article-related-link span {
  color: var(--text-secondary);
  font-size: 14px;
}
.article-back {
  margin: 32px 0 0;
  font-size: 14px;
}
@media (max-width: 700px) {
  .guide-grid {
    grid-template-columns: 1fr;
  }
  .article-toc ol {
    columns: 1;
  }
  .guide-article h1 {
    font-size: 29px;
  }
}

@media (max-width: 700px) {
  header nav {
    gap: 8px 14px;
    font-size: 14px;
  }
  header nav a[href='/about/'] {
    display: none;
  }
}

/* Indexable article previews */
.preview-text {
  max-width: 760px;
  margin: 24px 0;
  padding: 22px 24px;
  border: 1px solid var(--border-default);
  border-radius: 10px;
  background: #fff;
  font-family: Georgia, 'Noto Serif SC', 'Songti SC', serif;
  font-size: 17px;
  line-height: 1.9;
  overflow-wrap: anywhere;
}
.preview-text:lang(en) {
  font-size: 18px;
  line-height: 1.85;
}
.preview-text p + p {
  margin-top: 18px;
}
main audio { max-width: 100%; }
.preview-paywall {
  margin: 28px 0 8px;
  padding: 24px;
  border-radius: 10px;
  background: #eef1f5;
}
.preview-paywall h2 {
  margin-top: 0;
}
.preview-paywall p {
  color: #4d5057;
}
@media (max-width: 600px) {
  .preview-text {
    padding: 16px;
    font-size: 16px;
  }
  .preview-paywall {
    padding: 18px;
  }
}

/* IELTS landing page */
.ielts-landing section { border: 0; padding: 0; }
.ielts-hero { position: relative; min-height: 390px; overflow: hidden; border-radius: 16px; background: #172e4c; color: #fff; display: flex; align-items: center; }
.ielts-hero > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.ielts-hero::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, #172e4c 0%, #172e4ce8 43%, #172e4c15 100%); }
.ielts-hero-copy { position: relative; z-index: 1; max-width: 540px; padding: 48px; }
.ielts-eyebrow { margin: 0 0 16px; color: #d4e3f6; font-size: 14px; font-weight: 600; }
.ielts-hero h1 { margin: 0 0 18px; font-size: clamp(34px, 5vw, 48px); line-height: 1.22; }
.ielts-hero-copy > p:not(.ielts-eyebrow):not(.ielts-hero-action) { max-width: 24em; margin: 0; color: #e3ebf5; font-size: 16px; }
.ielts-hero-action { display: flex; align-items: center; flex-wrap: wrap; gap: 16px; margin: 26px 0 0; }
.ielts-hero-action a { display: inline-flex; align-items: center; min-height: 48px; padding: 10px 22px; border-radius: 8px; color: #172e4c; background: #fff; font-weight: 700; }
.ielts-coverage { display: grid; grid-template-columns: repeat(3, 1fr); margin: 22px 0 0; padding: 24px 0; border-bottom: 1px solid #dadddf; }
.ielts-coverage div { display: flex; flex-direction: column; gap: 4px; padding: 0 28px; }
.ielts-coverage div + div { border-left: 1px solid #dadddf; }
.ielts-coverage strong { font-size: 23px; line-height: 1.3; color: #1c3658; }
.ielts-coverage span { color: #555b65; font-size: 14px; }
.ielts-landing .ielts-section { margin-top: 72px; }
.ielts-section-heading { display: flex; justify-content: space-between; align-items: end; gap: 32px; }
.ielts-section-heading > p { max-width: 310px; margin: 0; color: #555b65; }
.ielts-landing h2 { margin: 0; font-size: 27px; line-height: 1.35; }
.ielts-subject-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 26px; }
.ielts-subject-grid article { min-width: 0; padding: 24px; background: #fff; border-radius: 12px; }
.ielts-landing h3 { margin: 8px 0; font-size: 19px; line-height: 1.4; }
.ielts-subject-grid p, .ielts-mode-list p, .ielts-details p { margin: 0; color: #555b65; font-size: 15px; }
.ielts-landing .ielts-modes { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; margin-top: 72px; padding: 40px; border-radius: 14px; background: #e8eef6; }
.ielts-mode-list { display: grid; gap: 22px; }
.ielts-mode-list h3 { margin-top: 0; }
.ielts-details { display: grid; grid-template-columns: 1fr 1fr; gap: 24px 48px; }
.ielts-details h2 { grid-column: 1 / -1; }
.ielts-landing .ielts-end { display: flex; justify-content: space-between; align-items: center; gap: 24px; margin-top: 72px; padding: 34px 40px; border-radius: 14px; background: #1c3658; color: #fff; }
.ielts-end .page-actions { flex: none; margin: 0; }
.ielts-end .page-actions a { background: #fff; color: #1c3658; }
@media (max-width: 600px) {
  .ielts-hero { min-height: 430px; align-items: end; }
  .ielts-hero > img { object-position: 68% center; }
  .ielts-hero::after { background: linear-gradient(0deg, #172e4c 0%, #172e4ce8 48%, #172e4c22 100%); }
  .ielts-hero-copy { padding: 28px 24px; }
  .ielts-hero h1 { font-size: 33px; }
  .ielts-coverage div { padding: 0 10px; }
  .ielts-coverage strong { font-size: 20px; }
  .ielts-coverage span { font-size: 12px; }
  .ielts-landing .ielts-section, .ielts-landing .ielts-modes, .ielts-landing .ielts-end { margin-top: 48px; }
  .ielts-section-heading { display: block; }
  .ielts-section-heading > p { margin-top: 12px; }
  .ielts-subject-grid, .ielts-landing .ielts-modes, .ielts-details { grid-template-columns: 1fr; }
  .ielts-subject-grid { gap: 10px; }
  .ielts-subject-grid article { padding: 20px; }
  .ielts-landing .ielts-modes { gap: 24px; padding: 26px; }
  .ielts-details { gap: 16px; }
  .ielts-details h2 { grid-column: auto; }
  .ielts-landing .ielts-end { align-items: flex-start; flex-direction: column; padding: 26px; }
}

/* Search landing pages: subject-specific imagery and practical examples. */
.learning-landing section { border: 0; padding: 0; }
.learning-hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 450px;
  overflow: hidden;
  border-radius: 14px;
  background: #172e4c;
  color: #fff;
}
.learning-hero > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.learning-hero::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, #142a46f5 0%, #142a46e8 46%, #142a4638 100%); }
.learning-hero-content { position: relative; z-index: 1; width: min(100%, 560px); padding: 46px; }
.learning-hero-label { margin: 0 0 18px; color: #e1eaf8; font-size: 14px; font-weight: 600; }
.learning-hero h1 { margin: 0 0 18px; font-size: clamp(32px, 4.5vw, 43px); line-height: 1.25; text-wrap: balance; }
.learning-hero-content > p:not(.learning-hero-label) { max-width: 29em; margin: 0; color: #edf2f9; font-size: 16px; line-height: 1.8; }
.learning-hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 22px; margin-top: 28px; }
.learning-hero-actions a:first-child, .learning-end > a { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 11px 20px; border-radius: 8px; background: #fff; color: #173458; font-weight: 700; }
.learning-hero-actions a:not(:first-child) { display: inline-flex; min-height: 48px; align-items: center; color: #fff; font-weight: 600; }
.learning-landing h2 { margin: 0; font-size: 27px; line-height: 1.35; text-wrap: balance; }
.learning-landing h3 { margin: 0; font-size: 19px; line-height: 1.45; text-wrap: balance; }
.learning-landing p { text-wrap: pretty; }
.learning-section, .learning-feature { margin-top: 76px; }
.learning-section-heading { display: flex; align-items: end; justify-content: space-between; gap: 28px; }
.learning-section-heading p, .learning-copy p { max-width: 40em; margin: 16px 0 0; color: #4b5563; }
.learning-feature { display: grid; grid-template-columns: 0.95fr 1.05fr; gap: 44px; align-items: center; }
.writing-workspace { margin: 0; overflow: hidden; border-radius: 12px; background: #fff; box-shadow: 0 3px 8px #152b4614; }
.writing-workspace figcaption, .comprehensive-map figcaption { padding: 13px 18px; color: #52627a; font-size: 13px; font-weight: 600; }
.writing-workspace-head { display: flex; justify-content: space-between; gap: 12px; padding: 14px 18px; border-top: 1px solid #e5eaf0; border-bottom: 1px solid #e5eaf0; color: #243b5d; font-size: 14px; }
.writing-workspace-head span { color: #596679; }
.writing-workspace-body { display: grid; grid-template-columns: 1fr 1fr; min-height: 205px; }
.writing-workspace-body > div { min-width: 0; padding: 19px; }
.writing-workspace-body > div + div { border-left: 1px solid #e5eaf0; }
.writing-workspace-body span { display: block; margin-bottom: 9px; color: #596679; font-size: 13px; }
.writing-workspace-body strong { font-size: 15px; }
.writing-workspace-body p { margin: 10px 0 0; color: #4b5563; font-size: 14px; line-height: 1.65; }
.writing-workspace-body .workspace-answer { min-height: 84px; color: #596679; }
.writing-workspace-body small { display: inline-block; color: #596679; font-size: 12px; }
.writing-workspace-body b { float: right; padding: 4px 8px; border-radius: 5px; background: #e9eff8; color: #264a7c; font-size: 12px; }
.writing-task-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; margin-top: 30px; }
.writing-task { min-width: 0; }
.writing-task-visual { height: 190px; overflow: hidden; border-radius: 10px; background: #e5edf7; }
.chart-visual { display: flex; flex-direction: column; justify-content: end; padding: 22px 28px 16px; }
.chart-bars { display: flex; align-items: end; gap: 24px; height: 94px; padding: 0 22px; border-bottom: 1px solid #a2b4cc; }
.chart-bars div { display: flex; flex-direction: column; align-items: center; gap: 6px; color: #28476f; font-size: 13px; font-weight: 600; }
.chart-bars i { display: block; width: 42px; height: 35px; border-radius: 4px 4px 0 0; background: #8aa8d2; }
.chart-bars div + div i { height: 70px; background: #315b96; }
.chart-years { display: flex; gap: 24px; padding: 4px 22px 0; color: #405674; font-size: 12px; }
.chart-years span { width: 42px; text-align: center; }
.chart-visual > p { margin: 5px 0 0; color: #405674; font-size: 12px; }
.outline-visual { display: flex; flex-direction: column; justify-content: center; padding: 24px 30px; background: #e8eef4; }
.outline-visual div { display: flex; align-items: center; gap: 18px; padding: 10px 0; }
.outline-visual div + div { border-top: 1px solid #c8d5e3; }
.outline-visual span { width: 48px; color: #315b96; font-weight: 700; }
.outline-visual b { color: #344355; font-size: 15px; font-weight: 500; }
.writing-task-copy { padding: 20px 2px 0; }
.writing-task-copy .task-name { margin: 0 0 8px; color: #315b96; font-size: 14px; font-weight: 700; }
.writing-task-copy > p:not(.task-name) { margin: 12px 0 0; color: #4b5563; font-size: 15px; }
.writing-task-copy > p.task-fact { color: #243b5d; font-weight: 600; }
.task-example { margin-top: 18px; padding-left: 16px; border-left: 3px solid #b8cbe3; }
.task-example span { color: #52627a; font-size: 13px; font-weight: 600; }
.task-example p { margin: 7px 0 0; color: #4b5563; font-size: 14px; }
.task-example p[lang="en"] { color: #23324a; font-family: Georgia, serif; font-size: 16px; line-height: 1.6; }
.writing-source { margin: 26px 0 0; color: #596679; font-size: 13px; }
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px 42px; margin-top: 28px; }
.faq-grid h3 { font-size: 17px; }
.faq-grid p { margin: 9px 0 0; color: #4b5563; font-size: 15px; }
.learning-landing .learning-end { display: flex; justify-content: space-between; align-items: center; gap: 24px; margin-top: 76px; padding: 34px 40px; border-radius: 12px; background: #1c3658; color: #fff; }
.learning-end p { margin: 8px 0 0; color: #e1eaf8; }
.learning-end p a { color: #fff; text-decoration: underline; }
.learning-end > a { flex: none; }
.comprehensive-hero > img { object-position: center; }
.comprehensive-years { margin-top: 26px; }
.comprehensive-map { margin: 0; padding: 10px 22px 20px; border-radius: 12px; background: #e8eef6; }
.comprehensive-map figcaption { padding: 12px 0; }
.comprehensive-map div { display: flex; flex-direction: column; gap: 3px; padding: 13px 0; border-top: 1px solid #cbd7e6; }
.comprehensive-map strong { color: #1c3658; }
.comprehensive-map span { color: #4b5e77; font-size: 14px; }
.review-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 26px; }
.review-steps h3 { font-size: 17px; }
.review-steps p { margin: 9px 0 0; color: #4b5563; font-size: 15px; }
@media (max-width: 700px) {
  .learning-feature { grid-template-columns: 1fr; gap: 28px; }
  .learning-section, .learning-feature, .learning-end { margin-top: 54px; }
  .review-steps { grid-template-columns: 1fr; gap: 22px; }
}
@media (max-width: 600px) {
  .learning-hero { min-height: 445px; align-items: end; }
  .learning-hero > img { object-position: 69% center; }
  .learning-hero::after { background: linear-gradient(0deg, #142a46fc 0%, #142a46eb 57%, #142a4640 100%); }
  .learning-hero-content { padding: 30px 24px; }
  .learning-hero h1 { font-size: 31px; }
  .learning-landing h2 { font-size: 24px; }
  .writing-task-grid, .faq-grid { grid-template-columns: 1fr; }
  .writing-task-grid { gap: 34px; }
  .faq-grid { gap: 24px; }
  .writing-workspace-body > div { padding: 14px; }
  .learning-landing .learning-end { align-items: flex-start; flex-direction: column; padding: 26px; }
}

/* IELTS writing: use product examples and local font stacks for a fast first view. */
body:has(.writing-landing) { background: #f3f7fc; color: #203452; }
body:has(.writing-landing) main { max-width: 1100px; }
body:has(.writing-landing) header { max-width: 1150px; }
.writing-landing { font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif; }
.writing-hero-new { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 8%; align-items: center; padding: 30px 0 10px !important; }
.writing-hero-copy h1 { color: #172c4d; font-size: clamp(34px, 4.5vw, 48px); line-height: 1.28; margin: 0; }
.writing-hero-copy h1 span { color: #315b96; }
.writing-hero-copy > p { color: #526780; font-size: 16px; line-height: 1.8; max-width: 28em; margin: 20px 0 0; }
.writing-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 22px; margin-top: 26px; }
.writing-actions a { display: inline-flex; min-height: 48px; align-items: center; font-weight: 650; }
.writing-actions a:first-child { padding: 0 20px; border-radius: 8px; background: #263f68; color: white; }
.writing-sample, .writing-result-overview, .writing-result { min-width: 0; border-radius: 12px; background: white; box-shadow: 0 4px 8px #253f680b; }
.writing-sample { padding: 24px; }
.writing-sample-title { display: block; padding-bottom: 14px; border-bottom: 1px solid #e4ebf3; color: #203a5d; }
.writing-sample-total { display: flex; align-items: baseline; gap: 10px; padding: 20px 0 14px; color: #60738c; font-size: 14px; }
.writing-sample-total strong, .writing-result-total strong { color: #315b96; font-size: 40px; line-height: 1; font-variant-numeric: tabular-nums; }
.writing-sample-bands { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 18px; }
.writing-sample-bands > div { display: grid; grid-template-columns: 1fr auto; gap: 3px 6px; color: #526883; font-size: 13px; }
.writing-sample-bands b { color: #294568; font-variant-numeric: tabular-nums; }
.writing-sample-bands i { grid-column: 1 / -1; height: 5px; overflow: hidden; border-radius: 4px; background: #e4edf7; }
.writing-sample-bands em { display: block; height: 100%; border-radius: inherit; background: #7195c2; }
.writing-sample-change { margin-top: 20px; padding: 15px 17px; border-radius: 8px; background: #f3f7fb; }
.writing-sample-change > strong { color: #41658f; font-size: 14px; }
.writing-sample-change p { margin: 8px 0 0; color: #526881; font-size: 14px; line-height: 1.7; }
.writing-sample-change p[lang='en'] { color: #233653; font: 17px/1.65 Georgia, 'Times New Roman', serif; }
.writing-landing del { color: #a7464e; text-decoration: line-through; }
.writing-landing ins { color: #236844; background: #e2f1e9; text-decoration: none; }
.writing-feedback-new h2 { color: #1a2f50; margin-bottom: 24px; }
.writing-result-overview { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 24px; padding: 24px; }
.writing-result-total { display: flex; flex-direction: column; gap: 6px; color: #60738c; font-size: 14px; }
.writing-result-bands { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
.writing-result-bands div { display: grid; gap: 4px; padding: 10px 12px; border-radius: 7px; background: #f2f6fb; color: #4b627f; font-size: 13px; }
.writing-result-bands strong { color: #315b96; font-size: 20px; font-variant-numeric: tabular-nums; }
.writing-result { margin-top: 16px; padding: 26px; }
.writing-result h3 { margin: 0 0 22px; color: #203a5d; font-size: 18px; }
.writing-result-columns { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 30px; }
.writing-result-essay { color: #26364f; font: 17px/1.9 Georgia, 'Times New Roman', serif; }
.writing-result-essay p { margin: 0 0 18px; }
.writing-result-essay a { color: inherit; border-bottom: 1px solid #8ca6c7; }
.writing-result-essay sup { display: inline-block; width: 17px; height: 17px; margin-left: 3px; border-radius: 50%; background: #416a9e; color: white; font: 700 10px/17px system-ui, sans-serif; text-align: center; }
.writing-result-notes article { display: grid; grid-template-columns: 24px minmax(0, 1fr); gap: 10px; padding: 0 0 22px; scroll-margin-top: 24px; }
.writing-result-notes article > b { display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: #dfeaf7; color: #315b96; font-size: 12px; }
.writing-result-notes article strong { color: #263e60; font-size: 14px; }
.writing-result-notes article p { margin: 6px 0 0; color: #4b6079; font-size: 14px; line-height: 1.7; }
.writing-result-notes .writing-note-change { color: #263b57; font: 16px/1.7 Georgia, 'Times New Roman', serif; }
@media (max-width: 700px) {
  .writing-hero-new, .writing-result-columns { grid-template-columns: 1fr; gap: 26px; }
  .writing-hero-copy h1 { font-size: 33px; }
  .writing-result-overview { grid-template-columns: 1fr; gap: 14px; padding: 20px; }
  .writing-result-total { flex-direction: row; align-items: baseline; gap: 10px; }
  .writing-result-bands { grid-template-columns: 1fr 1fr; }
  .writing-result { padding: 20px; }
}
@media (max-width: 360px) {
  .writing-hero-copy h1 { font-size: 29px; }
}

/* Long-form copy added to catalog pages (content/seo/*.md) */
.seo-content {
  margin: 6px 0 0;
}
.seo-content > p {
  margin: 0 0 16px;
  color: #3d4148;
}
.seo-content ul,
.seo-content ol {
  margin: 0 0 18px;
  padding-left: 22px;
  color: #3d4148;
}
.seo-content li {
  margin: 6px 0;
}
.seo-content blockquote {
  margin: 22px 0;
  padding: 12px 18px;
  border-left: 3px solid #b9c6d8;
  border-radius: 0 8px 8px 0;
  background: #f1f4f8;
  color: #3d4148;
}
.seo-content blockquote p {
  margin: 0;
}
.seo-content h2 {
  margin-top: 36px;
}
.seo-content h3 {
  margin-top: 26px;
  font-size: 17px;
}
.seo-content .table-wrap {
  margin: 18px 0 22px;
}
.seo-content .table-hint {
  margin-top: 18px;
}
.ielts-landing .seo-content,
.learning-landing .seo-content {
  max-width: 760px;
  margin: 36px auto 0;
  padding: 0 24px;
}

/* ---------- 内容页 CTA / 目录 / 正文排版 ---------- */
html {
  scroll-behavior: smooth;
}
main h1 {
  text-wrap: balance;
}
.page-cta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  margin: 22px 0 6px;
  padding: 18px 22px;
  border: 1px solid var(--border-default);
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 1px 2px rgba(20, 30, 45, 0.04);
}
.page-cta-bottom {
  margin: 42px 0 0;
}
.page-cta-copy strong {
  display: block;
  font-size: 16px;
  color: #1f2937;
}
.page-cta-copy span {
  display: block;
  margin-top: 3px;
  color: var(--text-secondary);
  font-size: 13px;
}
.page-cta-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.page-cta a.primary {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
}
.page-cta a.primary:hover {
  background: #274a7c;
  text-decoration: none;
}
.page-cta a.secondary {
  display: inline-block;
  padding: 9px 12px;
  border-radius: 8px;
  color: var(--accent);
  font-size: 14px;
  text-decoration: none;
}
.page-cta a.secondary:hover {
  background: #eef2f8;
  text-decoration: none;
}
.page-toc {
  margin: 16px 0 4px;
  padding: 14px 20px;
  border: 1px solid var(--border-default);
  border-radius: 12px;
  background: #fff;
}
.page-toc strong {
  display: block;
  margin-bottom: 6px;
  color: var(--text-secondary);
  font-size: 13px;
  letter-spacing: 0.02em;
}
.page-toc ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-toc a {
  color: var(--accent);
  font-size: 14px;
}
.seo-content {
  max-width: 46em;
}
.seo-content h2 {
  margin-top: 44px;
  font-size: 21px;
  letter-spacing: -0.01em;
  scroll-margin-top: 24px;
}
.seo-content h3 {
  font-size: 17px;
  scroll-margin-top: 24px;
}
.seo-content p {
  margin: 0 0 18px;
  line-height: 1.85;
  color: #373b40;
}
.seo-content > p:first-of-type {
  font-size: 16.5px;
  color: #2b3036;
}
.seo-content table {
  font-size: 14px;
}
.seo-content .table-wrap {
  border-radius: 10px;
}
.seo-content blockquote {
  font-size: 15px;
}
@media (max-width: 600px) {
  .page-cta {
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
  }
  .page-cta-actions {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
  }
  .page-cta a.primary,
  .page-cta a.secondary {
    text-align: center;
  }
  .seo-content {
    max-width: none;
  }
  .seo-content h2 {
    margin-top: 34px;
    font-size: 19px;
  }
}