.page-content {
  background: linear-gradient(180deg, #f6faf8 0%, #eef6f3 100%);
}

.survey-page {
  --pf-bg: #f6faf8;
  --pf-surface: #ffffff;
  --pf-ink: #16231f;
  --pf-muted: #51645f;
  --pf-blue: #177464;
  --pf-blue-soft: #dff2ec;
  --pf-line: #cfe1dc;
  --pf-chip: #e7f4ef;
  --sv-green: #177464;
  --sv-green-dark: #115d50;
  --sv-green-soft: #edf8f5;
  --sv-green-mid: #9bcac0;
  --sv-blue: #315f95;
  --sv-blue-soft: #eef4fb;
  --sv-gold: #8b673a;
  --sv-gold-soft: #f6efe6;
  --sv-ink: #243a35;
  max-width: 1180px;
}

.survey-page .perfit-hero,
.survey-page .perfit-teaser,
.survey-page section,
.survey-page .perfit-stat,
.survey-page .perfit-card,
.survey-page .perfit-cite-wrap,
.survey-page .perfit-results,
.survey-page .survey-note-card,
.survey-page .survey-table-wrap,
.survey-page .survey-figure,
.survey-page .survey-takeaways p {
  border-radius: 8px;
}

.survey-page .perfit-hero {
  border-color: var(--pf-line);
  box-shadow: 0 8px 24px rgba(28, 94, 79, 0.08);
  border-top: 4px solid var(--sv-green);
}

.survey-page .perfit-back,
.survey-page .perfit-status,
.survey-page .perfit-meta-label,
.survey-page .perfit-figure-tag,
.survey-page h1 {
  letter-spacing: 0;
}

.survey-page h1 {
  font-size: 2.2rem;
}

.survey-page .perfit-title-row {
  gap: 30px;
}

.survey-page .perfit-subtitle {
  color: #177464;
  font-size: 1rem;
  margin-left: 94px;
  white-space: nowrap;
}

.survey-title-mark {
  width: 64px;
  height: 64px;
  flex: 0 0 auto;
  border: 0;
  border-radius: 0;
  background: transparent;
  object-fit: contain;
  padding: 0;
  box-sizing: border-box;
}

.survey-page .perfit-status {
  background: var(--sv-gold-soft);
  border-color: #dfc782;
  color: var(--sv-gold);
}

.survey-page .pf-btn {
  border-radius: 8px;
  border-color: #9bcac0;
}

.survey-page .pf-btn-primary {
  background: #177464;
  border-color: #177464;
}

.survey-page .pf-btn-ghost {
  color: var(--sv-green-dark);
}

.survey-page h2,
.survey-page .perfit-stat h3,
.survey-page .perfit-card h3,
.survey-page .best {
  color: var(--sv-green-dark);
}

.survey-page .perfit-affiliations + .perfit-affiliations {
  border-top: 0;
  padding-top: 0;
}

.survey-page .perfit-authors {
  font-size: 0.92rem;
  line-height: 1.65;
}

.survey-page .perfit-meta-label {
  color: var(--sv-green-dark);
}

.survey-blog-section {
  max-width: 100%;
}

.survey-shell {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 20px;
  align-items: start;
  margin-top: 22px;
}

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

.survey-toc {
  position: sticky;
  top: 18px;
  border: 1px solid var(--pf-line);
  border-radius: 8px;
  background: #ffffff;
  padding: 12px;
  box-shadow: 0 8px 20px rgba(28, 94, 79, 0.06);
  border-top: 3px solid var(--sv-green);
}

.survey-toc p {
  margin: 0 0 8px;
  color: var(--sv-green-dark);
  font-size: 0.84rem;
  font-weight: 800;
  line-height: 1.4;
}

.survey-toc a {
  display: block;
  position: relative;
  padding: 7px 8px;
  padding-left: 18px;
  border-radius: 8px;
  color: #35554d;
  text-decoration: none;
  font-size: 0.86rem;
  font-weight: 650;
  line-height: 1.35;
}

.survey-toc a::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 50%;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #177464;
  transform: translateY(-50%);
}

.survey-toc a[href="#future"]::before,
.survey-toc a[href="#takeaways"]::before {
  background: var(--sv-gold);
}

.survey-toc a:hover {
  background: var(--sv-green-soft);
  color: var(--sv-green-dark);
}

.survey-content section {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.survey-blog-section h2 {
  margin-bottom: 12px;
  font-size: 1.45rem;
  line-height: 1.35;
}

.survey-blog-section p {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--sv-ink);
  text-align: justify;
  text-align-last: left;
}

.survey-blog-section strong {
  color: var(--sv-blue);
  font-style: italic;
  font-weight: inherit;
}

.survey-blog-section em {
  color: var(--sv-blue);
  font-style: italic;
}

.survey-kicker {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin: 0 0 6px;
  color: var(--sv-blue) !important;
  font-size: 0.78rem !important;
  font-weight: 800;
  text-transform: uppercase;
}

.survey-kicker::before {
  content: "";
  width: 13px;
  height: 13px;
  border: 2px solid var(--sv-green);
  border-radius: 50%;
  box-sizing: border-box;
}

#framework .survey-kicker::before,
#prompting .survey-kicker::before,
#adaptation .survey-kicker::before,
#alignment .survey-kicker::before {
  border-radius: 50%;
}

#future .survey-kicker::before,
#takeaways .survey-kicker::before {
  border-color: var(--sv-gold);
  border-radius: 50%;
}

.survey-figure {
  margin: 18px 0 0;
  padding: 0;
  border: 0;
  background: transparent;
}

.survey-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: none;
  object-fit: contain;
  border-radius: 8px;
  background: #ffffff;
}

.survey-wide-figure img {
  max-height: none;
}

.survey-tall-figure img {
  max-height: none;
}

.survey-figure figcaption {
  margin-top: 10px;
  color: #50645f;
  font-size: 0.92rem;
  line-height: 1.55;
  text-align: justify;
  text-align-last: left;
}

.survey-comparison-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.survey-five-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.survey-note-card {
  border: 1px solid var(--pf-line);
  background: #fbfefd;
  padding: 14px;
  border-top: 3px solid var(--sv-green);
}

.survey-note-card h3 {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 8px;
  color: var(--sv-green-dark);
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.4;
}

.survey-note-card h3::before {
  content: "";
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--sv-green);
}

.survey-five-grid .survey-note-card h3::before {
  background: var(--sv-gold);
}

.survey-note-card p {
  margin: 0;
  color: var(--sv-ink);
  font-size: 0.94rem;
  line-height: 1.7;
  text-align: left;
  text-align-last: left;
}

.survey-table-wrap {
  overflow-x: auto;
  margin-top: 16px;
  border: 1px solid var(--pf-line);
  background: #ffffff;
  border-top: 3px solid var(--sv-green);
}

.survey-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.survey-table th,
.survey-table td {
  padding: 12px 14px;
  border-bottom: 1px solid #e3eee9;
  text-align: left;
  vertical-align: top;
}

.survey-table th {
  color: var(--sv-green-dark);
  background: var(--sv-green-soft);
  font-weight: 800;
}

.survey-table td {
  color: var(--sv-ink);
  line-height: 1.65;
}

.survey-table td:first-child {
  color: var(--sv-green-dark);
  font-weight: 650;
}

.survey-table tr:last-child td {
  border-bottom: 0;
}

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

.survey-takeaways p {
  margin: 0;
  padding: 14px;
  border: 1px solid var(--pf-line);
  background: #fbfefd;
  border-left: 4px solid var(--sv-green);
}

.survey-takeaways p:nth-child(2) {
  border-left-color: var(--sv-green);
}

.survey-takeaways p:nth-child(3) {
  border-left-color: var(--sv-green);
}

.survey-takeaways p:nth-child(4) {
  border-left-color: var(--sv-green);
}

.survey-five-grid .survey-note-card {
  border-top-color: var(--sv-gold);
}

.survey-five-grid .survey-note-card h3 {
  color: var(--sv-gold);
}

@media (max-width: 1100px) {
  .survey-shell {
    grid-template-columns: 1fr;
  }

  .survey-toc {
    position: sticky;
    top: 0;
    z-index: 2;
    display: flex;
    gap: 6px;
    overflow-x: auto;
    padding: 8px;
  }

  .survey-toc p {
    flex: 0 0 auto;
    margin: 0;
    padding: 7px 8px;
  }

  .survey-toc a {
    flex: 0 0 auto;
    white-space: nowrap;
  }

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

@media (max-width: 900px) {
  .survey-page h1 {
    font-size: 1.85rem;
  }

  .survey-page .perfit-subtitle {
    font-size: 0.92rem;
    margin-left: 76px;
  }

  .survey-page .perfit-title-row {
    gap: 24px;
  }

  .survey-title-mark {
    width: 52px;
    height: 52px;
    font-size: 1rem;
  }

  .survey-comparison-grid,
  .survey-takeaways {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .survey-page h1 {
    font-size: 1.55rem;
  }

  .survey-page .perfit-subtitle {
    margin-left: 0;
  }

  .survey-blog-section h2 {
    font-size: 1.25rem;
  }

  .survey-figure {
    padding: 0;
  }
}