:root {
  --page-bg: #f6f6f2;
  --surface: #ffffff;
  --surface-muted: #ededE8;
  --surface-soft: #f8f8f4;
  --surface-strong: #111111;
  --text-primary: #111111;
  --text-body: #303531;
  --text-secondary: #60645f;
  --text-inverse: #ffffff;
  --border-color: #d8d8d0;
  --brand-primary: #111111;
  --brand-primary-dark: #000000;
  --brand-accent: #315c4f;
  --focus-ring: rgba(49, 92, 79, 0.24);
  --content-width: 1160px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --shadow-sm: 0 8px 22px rgba(24, 38, 33, 0.07);
  --shadow-md: 0 18px 45px rgba(24, 38, 33, 0.11);
  --heading-font: Georgia, "Times New Roman", "Noto Serif TC", serif;
  --body-font: Arial, "Noto Sans TC", "Microsoft JhengHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scrollbar-gutter: stable;
  scroll-behavior: smooth;
}

body {
  min-width: 0;
  margin: 0;
  color: var(--text-primary);
  background: var(--page-bg);
  font-family: var(--body-font);
  line-height: 1.7;
}

a {
  color: inherit;
}

a:focus-visible {
  outline: 3px solid var(--brand-accent);
  outline-offset: 3px;
  box-shadow: 0 0 0 6px var(--focus-ring);
}

.site-skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 10;
  transform: translateY(-160%);
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-inverse);
  background: var(--brand-primary);
  font-weight: 900;
  text-decoration: none;
}

.site-skip-link:focus {
  transform: translateY(0);
}

.site-header {
  border-bottom: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.96);
  font-family: Arial, "Noto Sans TC", "Microsoft JhengHei", sans-serif;
}

.site-header-inner,
.content-main,
.site-footer-inner {
  width: min(var(--content-width), calc(100% - 32px));
  max-width: 100%;
  margin: 0 auto;
}

.site-header-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 24px;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}

.site-brand,
.site-nav,
.site-footer-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
}

.site-brand {
  gap: 10px;
  min-height: 44px;
  color: var(--brand-primary-dark);
  font-weight: 900;
  line-height: 1.2;
  text-decoration: none;
}

.site-brand-mark {
  width: 28px;
  height: 28px;
  border: 8px solid var(--brand-primary);
  border-right-color: var(--brand-accent);
  border-radius: 50%;
}

.site-brand-text {
  line-height: 1.2;
  white-space: nowrap;
}

.site-nav {
  gap: 4px 14px;
}

.site-nav a,
.site-footer-nav a,
.site-footer-nav span {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: var(--text-secondary);
  font-weight: 800;
  text-decoration: none;
}

.site-nav a {
  line-height: 1.2;
}

.site-nav a:hover,
.site-nav a[aria-current="page"],
.site-footer-nav a:hover,
.site-footer-nav a[aria-current="page"] {
  color: var(--brand-primary);
}

.site-nav-cta,
.site-primary-link {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--text-inverse);
  background: var(--brand-primary);
  font-weight: 900;
  text-decoration: none;
}

.site-nav-cta {
  padding: 10px 15px;
  line-height: 1.2;
}

.site-primary-link {
  padding: 11px 18px;
}

.site-nav-cta:hover,
.site-primary-link:hover {
  background: var(--brand-primary-dark);
}

.content-main {
  display: grid;
  gap: clamp(32px, 5vw, 56px);
  padding: clamp(44px, 7vw, 76px) 0 64px;
}

.content-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(320px, 1.08fr);
  gap: clamp(20px, 4vw, 40px);
  align-items: center;
}

.content-hero-copy {
  display: grid;
  gap: 12px;
  min-width: 0;
}

.articles-hero-character {
  min-width: 0;
  margin: 0;
}

.articles-hero-character img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
}

.content-eyebrow {
  margin: 0;
  color: var(--brand-accent);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  color: var(--text-primary);
  font-family: var(--heading-font);
  line-height: 1.14;
  letter-spacing: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 8px;
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  text-wrap: balance;
}

h2 {
  margin-bottom: 8px;
  font-size: clamp(1.55rem, 3vw, 2.2rem);
}

h3 {
  margin-bottom: 0;
  font-size: 1.22rem;
}

.content-lead,
.article-section-heading p,
.article-summary,
.content-cta p,
.site-footer-note {
  color: var(--text-secondary);
}

.content-lead {
  max-width: 760px;
  margin-bottom: 0;
  font-size: 1.08rem;
}

.article-section {
  display: grid;
  gap: 20px;
}

.article-section-heading {
  display: grid;
  gap: 6px;
  max-width: 680px;
}

.article-section-heading p {
  margin-bottom: 0;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  min-width: 0;
}

.article-card {
  display: grid;
  gap: 12px;
  min-width: 0;
  padding: 20px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.article-visual {
  min-height: 112px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--surface-muted);
}

.article-visual-bars {
  background:
    linear-gradient(to top, rgba(17, 17, 17, 0.72) 0 36%, transparent 36%),
    linear-gradient(90deg, transparent 0 12%, var(--surface) 12% 18%, transparent 18% 32%, var(--surface) 32% 38%, transparent 38% 52%, var(--surface) 52% 58%, transparent 58% 72%, var(--surface) 72% 78%, transparent 78%),
    var(--surface-muted);
}

.article-visual-rings {
  background:
    radial-gradient(circle at 35% 50%, transparent 0 26px, var(--brand-primary) 27px 36px, transparent 37px),
    radial-gradient(circle at 62% 50%, transparent 0 38px, var(--brand-accent) 39px 48px, transparent 49px),
    var(--surface-muted);
}

.article-visual-lines {
  background:
    linear-gradient(135deg, transparent 12%, var(--brand-primary) 12% 15%, transparent 15% 38%, var(--brand-accent) 38% 41%, transparent 41% 68%, var(--brand-primary) 68% 71%, transparent 71%),
    var(--surface-muted);
}

.article-category {
  margin-bottom: 0;
  color: var(--brand-accent);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.06em;
}

.article-summary {
  margin-bottom: 0;
  overflow-wrap: anywhere;
}

.article-status {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  gap: 8px;
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-weight: 900;
}

.article-status::before {
  width: 6px;
  height: 6px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--brand-accent);
  content: "";
}

.article-link,
.article-back-link {
  display: inline-flex;
  width: fit-content;
  min-height: 40px;
  align-items: center;
  color: var(--brand-primary);
  font-weight: 900;
  text-decoration-color: rgba(49, 92, 79, 0.4);
  text-underline-offset: 4px;
}

.article-page-main {
  gap: 20px;
  width: min(920px, calc(100% - 32px));
  padding-top: clamp(40px, 4vw, 52px);
}

.article-breadcrumb {
  max-width: 800px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 700;
}

.article-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  margin: 0;
  padding: 0;
  list-style: none;
}

.article-breadcrumb li {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  overflow-wrap: anywhere;
}

.article-breadcrumb li + li::before {
  margin-right: 6px;
  color: var(--border-color);
  content: "/";
}

.article-page {
  display: grid;
  gap: 30px;
  max-width: 840px;
  min-width: 0;
  padding: clamp(22px, 4vw, 42px);
  border: 1px solid rgba(17, 17, 17, 0.1);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: 0 18px 52px rgba(24, 38, 33, 0.08);
}

.article-header {
  display: grid;
  gap: 12px;
}

.article-header h1 {
  margin-bottom: 0;
  font-size: clamp(2.05rem, 4vw, 3.35rem);
  line-height: 1.1;
  text-wrap: balance;
}

.article-lead {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--text-body);
  font-size: 1.08rem;
  line-height: 1.8;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 800;
}

.article-cover {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: clamp(18px, 3vw, 28px);
  align-items: stretch;
  min-width: 0;
  padding: clamp(18px, 3vw, 28px);
  border: 1px solid rgba(49, 92, 79, 0.22);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(49, 92, 79, 0.08), transparent 46%),
    var(--surface-soft);
}

.article-cover-copy {
  display: grid;
  gap: 10px;
  align-content: center;
  min-width: 0;
}

.article-cover-label {
  margin-bottom: 0;
  color: var(--brand-accent);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.06em;
}

.article-cover h2 {
  margin-bottom: 0;
  font-size: clamp(1.45rem, 3vw, 2.1rem);
}

.article-cover p {
  margin-bottom: 0;
  color: var(--text-body);
}

.article-cover-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  min-width: 0;
}

.article-cover-metrics div {
  display: grid;
  gap: 5px;
  min-width: 0;
  padding: 14px;
  border: 1px solid rgba(17, 17, 17, 0.12);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.82);
}

.article-cover-metrics span,
.article-key-point-grid p::before {
  color: var(--brand-accent);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.article-cover-metrics strong {
  color: var(--text-primary);
  font-size: clamp(1.08rem, 2.8vw, 1.42rem);
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.article-toc,
.article-key-points,
.article-callout,
.article-related,
.article-faq {
  padding: clamp(16px, 2.6vw, 22px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: var(--surface-soft);
}

.article-toc h2,
.article-key-points h2,
.article-callout h2,
.article-related h2,
.article-faq h2 {
  margin-bottom: 10px;
  font-size: clamp(1.3rem, 2.4vw, 1.7rem);
}

.article-toc ol,
.article-related ul,
.article-note-list,
.article-source-list ul {
  margin: 0;
  padding-left: 1.3rem;
}

.article-key-point-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  counter-reset: key-point;
}

.article-key-point-grid p {
  display: grid;
  gap: 8px;
  align-content: start;
  margin-bottom: 0;
  color: var(--text-body);
  counter-increment: key-point;
}

.article-key-point-grid p::before {
  display: inline-flex;
  width: 36px;
  height: 28px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(49, 92, 79, 0.22);
  border-radius: var(--radius-sm);
  background: var(--surface);
  content: counter(key-point, decimal-leading-zero);
}

.article-toc ol {
  columns: 2;
  column-gap: 34px;
}

.article-toc li {
  break-inside: avoid;
}

.article-toc a {
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  color: var(--brand-primary);
  font-weight: 800;
  text-decoration-color: rgba(49, 92, 79, 0.36);
  text-underline-offset: 4px;
}

.article-body {
  display: grid;
  gap: 30px;
  min-width: 0;
  font-size: 1.05rem;
  line-height: 1.82;
}

.article-section-block {
  display: grid;
  gap: 12px;
  min-width: 0;
}

.article-section-block h2 {
  margin-bottom: 0;
}

.article-section-block p,
.article-section-block li,
.article-assumptions dd,
.article-faq p,
.article-source-list p,
.article-source-list li,
.article-disclaimer {
  color: var(--text-body);
}

.article-section-block p,
.article-source-list p,
.article-disclaimer {
  margin-bottom: 0;
}

.article-assumptions {
  display: grid;
  gap: 10px;
  margin: 0;
}

.article-assumptions div {
  display: grid;
  gap: 3px;
  padding: 12px 14px;
  border-left: 4px solid rgba(49, 92, 79, 0.34);
  background: var(--surface-soft);
}

.article-assumptions dt {
  color: var(--text-primary);
  font-weight: 900;
}

.article-assumptions dd {
  margin: 0;
}

.article-result-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.article-result-summary div {
  display: grid;
  gap: 6px;
  min-width: 0;
  padding: 14px;
  border: 1px solid rgba(17, 17, 17, 0.12);
  border-radius: var(--radius-md);
  background: var(--surface);
}

.article-result-summary span {
  color: var(--text-secondary);
  font-size: 0.86rem;
  font-weight: 800;
}

.article-result-summary strong {
  color: var(--text-primary);
  font-size: 1.08rem;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.article-formula {
  padding: 12px 14px;
  border: 1px solid rgba(49, 92, 79, 0.2);
  border-radius: var(--radius-md);
  background: #f4f7f2;
  color: var(--text-primary) !important;
  font-weight: 900;
  overflow-wrap: anywhere;
}

.article-table-hint {
  color: var(--text-secondary) !important;
  font-size: 0.88rem;
}

.article-table-scroll {
  max-width: 100%;
  min-width: 0;
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--surface);
}

.article-table-scroll:focus-visible {
  outline: 3px solid var(--brand-accent);
  outline-offset: 3px;
  box-shadow: 0 0 0 6px var(--focus-ring);
}

.article-table-scroll table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
}

.article-table-scroll caption {
  padding: 12px 14px;
  color: var(--text-secondary);
  text-align: left;
  font-weight: 900;
}

.article-table-scroll th,
.article-table-scroll td {
  padding: 12px 14px;
  border-top: 1px solid var(--border-color);
  text-align: left;
  white-space: nowrap;
}

.article-table-scroll thead th {
  color: var(--text-inverse);
  background: var(--brand-primary);
}

.article-table-scroll .article-numeric {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.article-note-list {
  display: grid;
  gap: 8px;
}

.article-faq {
  display: grid;
  gap: 10px;
}

.article-faq details {
  border-top: 1px solid var(--border-color);
  padding-top: 10px;
}

.article-faq summary {
  min-height: 40px;
  color: var(--text-primary);
  font-weight: 900;
  cursor: pointer;
}

.article-faq summary:focus-visible {
  outline: 3px solid var(--brand-accent);
  outline-offset: 3px;
  box-shadow: 0 0 0 6px var(--focus-ring);
}

.article-faq p {
  margin: 4px 0 0;
}

.article-source-list {
  display: grid;
  gap: 12px;
  min-width: 0;
}

.article-source-list h2 {
  margin-bottom: 0;
}

.article-source-list code {
  color: var(--text-primary);
  font-family: var(--body-font);
  font-size: 0.95em;
  overflow-wrap: anywhere;
}

.article-source-list li {
  margin-top: 6px;
  overflow-wrap: anywhere;
}

.article-callout {
  display: grid;
  gap: 10px;
  background:
    linear-gradient(90deg, rgba(49, 92, 79, 0.08), transparent 82px),
    var(--surface);
  box-shadow: var(--shadow-sm);
}

.article-callout .site-primary-link {
  min-width: 140px;
  justify-self: start;
}

.article-callout p {
  max-width: 620px;
  margin-bottom: 0;
  color: var(--text-body);
}

.article-related li + li {
  margin-top: 8px;
}

.article-disclaimer {
  padding: 14px;
  border: 1px solid #e7d39f;
  border-radius: var(--radius-md);
  background: #fff9ea;
}

.article-page--comparison .comparison-hero {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
  min-width: 0;
  padding: clamp(18px, 3vw, 28px);
  border: 1px solid rgba(49, 92, 79, 0.24);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(49, 92, 79, 0.07), transparent 58%),
    var(--surface-soft);
}

.article-page--comparison .comparison-hero-intro {
  display: grid;
  gap: 10px;
  max-width: 720px;
}

.article-page--comparison .comparison-hero-intro h2,
.article-page--comparison .comparison-hero-intro p {
  margin-bottom: 0;
}

.article-page--comparison .comparison-lanes {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(150px, 0.54fr) minmax(0, 1fr);
  gap: 14px;
  align-items: stretch;
  min-width: 0;
}

.article-page--comparison .comparison-account,
.article-page--comparison .comparison-variable,
.article-page--comparison .comparison-delta {
  min-width: 0;
  border: 1px solid rgba(17, 17, 17, 0.14);
  background: var(--surface);
}

.article-page--comparison .comparison-account {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: clamp(16px, 2.5vw, 22px);
  border-top: 6px solid var(--brand-primary);
}

.article-page--comparison .comparison-account--b {
  border-top-color: var(--brand-accent);
}

.article-page--comparison .comparison-account-label,
.article-page--comparison .comparison-variable span,
.article-page--comparison .comparison-delta span,
.article-page--comparison .experiment-variable-card span,
.article-page--comparison .etf-check-dashboard span {
  color: var(--brand-accent);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.06em;
}

.article-page--comparison .comparison-account strong {
  color: var(--text-primary);
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.article-page--comparison .comparison-account b {
  color: var(--brand-primary-dark);
  font-size: clamp(1.25rem, 2.8vw, 1.78rem);
  line-height: 1.18;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.article-page--comparison .comparison-account span:not(.comparison-account-label) {
  color: var(--text-secondary);
  font-weight: 800;
}

.article-page--comparison .comparison-variable {
  display: grid;
  place-items: center;
  align-content: center;
  gap: 10px;
  padding: 16px;
  border-style: dashed;
  text-align: center;
}

.article-page--comparison .comparison-variable strong {
  color: var(--text-primary);
  font-size: 1.05rem;
  line-height: 1.35;
}

.article-page--comparison .comparison-delta {
  display: grid;
  gap: 4px;
  padding: 16px 18px;
  border-left: 6px solid var(--brand-accent);
}

.article-page--comparison .comparison-delta strong {
  color: var(--text-primary);
  font-size: clamp(1.65rem, 4vw, 2.6rem);
  line-height: 1.08;
}

.article-page--comparison .experiment-conditions {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(190px, 0.34fr);
  gap: 14px;
  min-width: 0;
  align-items: stretch;
}

.article-page--comparison .experiment-condition-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--border-color);
  background: var(--border-color);
}

.article-page--comparison .experiment-condition-list div {
  display: grid;
  gap: 4px;
  min-width: 0;
  padding: 12px;
  background: var(--surface-soft);
}

.article-page--comparison .experiment-condition-list dt {
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 900;
}

.article-page--comparison .experiment-condition-list dd {
  margin: 0;
  color: var(--text-primary);
  font-weight: 900;
}

.article-page--comparison .experiment-variable-card {
  display: grid;
  gap: 8px;
  align-content: center;
  min-width: 0;
  padding: 16px;
  border: 2px solid rgba(49, 92, 79, 0.28);
  background:
    linear-gradient(135deg, rgba(166, 127, 62, 0.13), transparent 62%),
    var(--surface);
}

.article-page--comparison .experiment-variable-card strong {
  color: var(--text-primary);
  font-size: 1.22rem;
}

.article-page--comparison .experiment-variable-card p {
  margin-bottom: 0;
}

.article-page--comparison .parallel-paths {
  display: grid;
  gap: 12px;
  min-width: 0;
  padding: 16px;
  border: 1px solid rgba(49, 92, 79, 0.18);
  background: var(--surface-soft);
}

.article-page--comparison .parallel-paths-note {
  margin-bottom: 0;
  color: var(--text-secondary) !important;
  font-size: 0.86rem;
  font-weight: 800;
}

.article-page--comparison .parallel-path {
  display: grid;
  grid-template-columns: minmax(92px, auto) minmax(0, 1fr) minmax(150px, auto);
  gap: 10px;
  align-items: center;
  min-width: 0;
}

.article-page--comparison .parallel-path-line {
  position: relative;
  min-height: 10px;
  border-top: 3px solid var(--brand-primary);
}

.article-page--comparison .parallel-path-line::before,
.article-page--comparison .parallel-path-line::after {
  position: absolute;
  top: -7px;
  width: 12px;
  height: 12px;
  border: 3px solid var(--brand-primary);
  border-radius: 50%;
  background: var(--surface);
  content: "";
}

.article-page--comparison .parallel-path-line::before {
  left: 0;
}

.article-page--comparison .parallel-path-line::after {
  right: 0;
}

.article-page--comparison .parallel-path--b .parallel-path-line {
  border-top-color: var(--brand-accent);
  transform: translateY(10px);
}

.article-page--comparison .parallel-path--b .parallel-path-line::before,
.article-page--comparison .parallel-path--b .parallel-path-line::after {
  border-color: var(--brand-accent);
}

.article-page--comparison .parallel-path-start,
.article-page--comparison .parallel-path-end {
  color: var(--text-primary);
  font-weight: 900;
  font-variant-numeric: tabular-nums;
}

.article-page--comparison .parallel-path-end {
  text-align: right;
}

.article-page--comparison .meaning-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 14px;
  min-width: 0;
}

.article-page--comparison .meaning-panel {
  display: grid;
  gap: 10px;
  min-width: 0;
  padding: 16px;
  border-top: 5px solid var(--brand-primary);
  background: var(--surface-soft);
}

.article-page--comparison .meaning-panel--no {
  border-top-color: var(--brand-accent);
}

.article-page--comparison .meaning-panel h3 {
  margin-bottom: 0;
  color: var(--text-primary);
  font-size: 1.12rem;
}

.article-page--comparison .meaning-panel ul,
.article-page--comparison .etf-check-dashboard {
  margin: 0;
}

.article-page--comparison .meaning-panel li {
  margin-top: 6px;
}

.article-page--comparison .etf-check-dashboard {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  background: var(--border-color);
}

.article-page--comparison .etf-check-dashboard div {
  display: grid;
  gap: 8px;
  min-width: 0;
  padding: 14px;
  background: var(--surface);
}

.article-page--comparison .etf-check-dashboard strong {
  color: var(--text-primary);
  line-height: 1.3;
}

.article-page--comparison .comparison-cta {
  border-left: 6px solid var(--brand-primary);
}

.article-page--inflation-lens .inflation-lens-hero {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
  min-width: 0;
  padding: clamp(18px, 3vw, 30px);
  border: 1px solid rgba(49, 92, 79, 0.24);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(49, 92, 79, 0.08), transparent 52%),
    radial-gradient(circle at 50% 44%, rgba(255, 255, 255, 0.92) 0 88px, rgba(49, 92, 79, 0.1) 90px 132px, transparent 134px),
    var(--surface-soft);
}

.article-page--inflation-lens .lens-hero-copy {
  display: grid;
  gap: 10px;
  max-width: 700px;
}

.article-page--inflation-lens .lens-hero-copy h2,
.article-page--inflation-lens .lens-hero-copy p {
  margin-bottom: 0;
}

.article-page--inflation-lens .lens-path {
  display: grid;
  gap: 14px;
  min-width: 0;
}

.article-page--inflation-lens .lens-focus-stage,
.article-page--inflation-lens .lens-result-stage,
.article-page--inflation-lens .lens-filter-band,
.article-page--inflation-lens .same-asset-note,
.article-page--inflation-lens .lens-assumption-note,
.article-page--inflation-lens .lens-reading-dictionary div,
.article-page--inflation-lens .lens-formula-strip,
.article-page--inflation-lens .lens-calculator-guide {
  min-width: 0;
  border: 1px solid rgba(17, 17, 17, 0.13);
  background: var(--surface);
}

.article-page--inflation-lens .lens-focus-stage,
.article-page--inflation-lens .lens-result-stage {
  display: grid;
  gap: 7px;
  padding: clamp(16px, 3vw, 24px);
}

.article-page--inflation-lens .lens-focus-stage {
  border-left: 6px solid var(--brand-primary);
}

.article-page--inflation-lens .lens-result-stage {
  border-left: 6px solid var(--brand-accent);
}

.article-page--inflation-lens .lens-focus-stage span,
.article-page--inflation-lens .lens-result-stage span,
.article-page--inflation-lens .lens-filter-label {
  color: var(--brand-accent);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.06em;
}

.article-page--inflation-lens .lens-focus-stage strong,
.article-page--inflation-lens .lens-result-stage strong {
  color: var(--text-primary);
  font-size: clamp(1.9rem, 6vw, 3.25rem);
  line-height: 1.04;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.article-page--inflation-lens .lens-focus-stage p,
.article-page--inflation-lens .lens-result-stage p,
.article-page--inflation-lens .lens-filter-band p,
.article-page--inflation-lens .lens-assumption-note p,
.article-page--inflation-lens .lens-calculator-guide li {
  margin-bottom: 0;
  color: var(--text-body);
}

.article-page--inflation-lens .lens-filter-band {
  display: grid;
  gap: 8px;
  justify-items: center;
  padding: 18px;
  border-style: dashed;
  text-align: center;
}

.article-page--inflation-lens .lens-filter-band strong {
  color: var(--text-primary);
  font-size: clamp(1.2rem, 3vw, 1.55rem);
  line-height: 1.2;
}

.article-page--inflation-lens .same-asset-note {
  margin-bottom: 0;
  padding: 13px 15px;
  border-left: 6px solid var(--brand-accent);
  color: var(--text-primary) !important;
  font-weight: 900;
}

.article-page--inflation-lens .lens-result-stage--inline {
  background:
    linear-gradient(90deg, rgba(49, 92, 79, 0.08), transparent 78px),
    var(--surface);
}

.article-page--inflation-lens .lens-conversion-flow {
  display: grid;
  gap: 10px;
  justify-items: center;
  min-width: 0;
  text-align: center;
}

.article-page--inflation-lens .lens-conversion-step {
  display: grid;
  gap: 6px;
  justify-items: center;
  min-width: 0;
}

.article-page--inflation-lens .lens-conversion-value {
  display: inline-block;
  max-width: 100%;
  font-size: clamp(1.65rem, 5.2vw, 2.6rem);
  white-space: nowrap;
}

.article-page--inflation-lens .lens-flow-arrow {
  color: var(--brand-accent);
  font-size: 1.45rem;
  font-weight: 900;
  line-height: 1;
}

.article-page--inflation-lens .lens-conversion-flow p {
  max-width: 360px;
  margin-bottom: 0;
  color: var(--text-body);
  font-weight: 800;
}

.article-page--inflation-lens .lens-assumption-note {
  display: grid;
  gap: 6px;
  padding: 14px 16px;
  border-left: 5px solid var(--brand-accent);
  background: var(--surface-soft);
}

.article-page--inflation-lens .lens-assumption-note strong {
  color: var(--text-primary);
}

.article-page--inflation-lens .lens-reading-dictionary {
  display: grid;
  gap: 12px;
  margin: 0;
}

.article-page--inflation-lens .lens-reading-dictionary div {
  display: grid;
  gap: 5px;
  padding: 15px 16px;
}

.article-page--inflation-lens .lens-reading-dictionary dt {
  color: var(--text-primary);
  font-size: 1.08rem;
  font-weight: 900;
}

.article-page--inflation-lens .lens-reading-dictionary dd {
  margin: 0;
  color: var(--text-body);
}

.article-page--inflation-lens .lens-formula-strip {
  display: grid;
  gap: 8px;
  padding: 14px 16px;
  background: #f4f7f2;
}

.article-page--inflation-lens .lens-formula-strip p {
  margin-bottom: 0;
}

.article-page--inflation-lens .lens-formula-strip code {
  color: var(--text-primary);
  font-family: var(--body-font);
  font-weight: 900;
  overflow-wrap: anywhere;
}

.article-page--inflation-lens .lens-calculator-guide {
  padding: 14px 16px;
  background: var(--surface-soft);
}

.article-page--inflation-lens .lens-calculator-guide ol {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 1.3rem;
}

.article-page--inflation-lens .lens-cta-context {
  padding: 14px 16px;
  border-left: 5px solid var(--brand-accent);
  background: var(--surface-soft);
  color: var(--text-primary) !important;
  font-weight: 800;
}

.article-page--inflation-lens .lens-callout {
  border-left: 6px solid var(--brand-accent);
}

.content-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 24px;
  align-items: center;
  justify-content: space-between;
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid rgba(17, 17, 17, 0.14);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(90deg, rgba(49, 92, 79, 0.08), transparent 82px),
    var(--surface);
  box-shadow: var(--shadow-md);
}

.content-cta h2 {
  margin-bottom: 6px;
  font-size: clamp(1.45rem, 2.8vw, 2rem);
}

.content-cta p {
  max-width: 620px;
  margin-bottom: 0;
}

.site-footer {
  border-top: 1px solid var(--border-color);
  background: var(--surface);
}

.site-footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 28px;
  align-items: center;
  justify-content: space-between;
  padding: 30px 0;
}

.site-footer-brand {
  margin-bottom: 4px;
  font-weight: 900;
}

.site-footer-note {
  max-width: 460px;
  margin-bottom: 0;
  font-size: 0.92rem;
}

.site-footer-nav {
  gap: 2px 16px;
}

.site-footer-nav span {
  cursor: default;
}

@media (max-width: 900px) {
  .content-hero {
    grid-template-columns: 1fr;
  }

  .articles-hero-character {
    width: min(100%, 720px);
  }

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

  .article-cover,
  .article-key-point-grid {
    grid-template-columns: 1fr;
  }

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

  .article-page--comparison .comparison-lanes,
  .article-page--comparison .experiment-conditions,
  .article-page--comparison .meaning-grid {
    grid-template-columns: 1fr;
  }

  .article-page--comparison .comparison-variable {
    min-height: 96px;
  }

  .article-page--comparison .experiment-condition-list,
  .article-page--comparison .etf-check-dashboard {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .article-page--inflation-lens .lens-focus-stage strong,
  .article-page--inflation-lens .lens-result-stage strong {
    font-size: clamp(1.7rem, 6.2vw, 2.6rem);
  }
}

@media (max-width: 840px) {
  .site-header-inner,
  .content-main,
  .site-footer-inner {
    width: min(100% - 24px, var(--content-width));
  }

  .site-nav {
    order: 3;
    width: 100%;
  }

  .site-nav-cta {
    margin-left: auto;
  }
}

@media (max-width: 640px) {
  .content-main {
    gap: 32px;
    padding: 36px 0 48px;
  }

  .content-hero {
    gap: 18px;
  }

  .articles-hero-character img {
    border-radius: var(--radius-md);
  }

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

  .article-card {
    padding: 16px;
  }

  .content-cta {
    display: grid;
  }

  .site-primary-link {
    width: 100%;
  }

  .article-callout .site-primary-link {
    justify-self: stretch;
  }

  .article-page {
    max-width: 100%;
  }

  .article-page-main {
    padding-top: 36px;
  }

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

  .article-page--comparison .comparison-hero {
    padding: 16px;
  }

  .article-page--comparison .experiment-condition-list,
  .article-page--comparison .etf-check-dashboard {
    grid-template-columns: 1fr;
  }

  .article-page--comparison .parallel-path {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .article-page--comparison .parallel-path-line {
    min-height: 18px;
  }

  .article-page--comparison .parallel-path--b .parallel-path-line {
    transform: none;
  }

  .article-page--comparison .parallel-path-end {
    text-align: left;
  }

  .article-page--inflation-lens .inflation-lens-hero {
    padding: 16px;
  }
}

@media (max-width: 720px) {
  .article-toc ol {
    columns: 1;
  }

  .article-page--inflation-lens .lens-path {
    gap: 12px;
  }

  .article-page--inflation-lens .lens-filter-band {
    justify-items: start;
    text-align: left;
  }
}

@media (max-width: 520px) {
  .site-nav {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 6px;
  }

  .site-nav a {
    justify-content: center;
    padding: 5px 4px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--surface);
    font-size: 0.92rem;
    text-align: center;
    white-space: normal;
  }
}

@media (max-width: 420px) {
  .site-header-inner,
  .content-main,
  .site-footer-inner {
    width: min(100% - 20px, var(--content-width));
  }

  h1 {
    font-size: clamp(2rem, 11vw, 2.75rem);
  }

  h2 {
    font-size: clamp(1.45rem, 8vw, 2rem);
  }

  .site-brand-text {
    white-space: normal;
  }

  .article-breadcrumb ol {
    row-gap: 4px;
  }

  .article-breadcrumb li:last-child {
    flex-basis: 100%;
    line-height: 1.5;
  }

  .article-breadcrumb li:last-child::before {
    display: none;
  }

  .article-visual {
    min-height: 96px;
  }

  .article-page {
    padding: 18px 14px;
  }

  .article-body {
    font-size: 1.03rem;
  }

  .article-body h2,
  .article-faq h2,
  .article-source-list h2,
  .article-callout h2,
  .article-related h2 {
    font-size: clamp(1.55rem, 7.2vw, 1.72rem);
    line-height: 1.22;
    overflow-wrap: anywhere;
    text-wrap: balance;
  }

  .article-cover,
  .article-key-points,
  .article-toc,
  .article-callout,
  .article-related,
  .article-faq {
    padding: 14px;
  }

  .article-page--inflation-lens .lens-focus-stage,
  .article-page--inflation-lens .lens-result-stage,
  .article-page--inflation-lens .lens-filter-band,
  .article-page--inflation-lens .lens-assumption-note,
  .article-page--inflation-lens .lens-reading-dictionary div,
  .article-page--inflation-lens .lens-formula-strip,
  .article-page--inflation-lens .lens-calculator-guide {
    padding: 13px;
  }

  .article-page--inflation-lens .lens-focus-stage strong,
  .article-page--inflation-lens .lens-result-stage strong {
    font-size: clamp(1.5rem, 9vw, 2.05rem);
    line-height: 1.12;
  }

  .article-page--inflation-lens .lens-conversion-value {
    font-size: clamp(1.42rem, 7.4vw, 1.82rem);
  }
}

@media (max-width: 360px) {
  .article-breadcrumb li:last-child {
    display: none;
  }

  .article-page--inflation-lens .lens-focus-stage strong,
  .article-page--inflation-lens .lens-result-stage strong {
    font-size: clamp(1.36rem, 8.4vw, 1.72rem);
  }

  .article-page--inflation-lens .lens-result-stage--inline {
    padding-right: 10px;
    padding-left: 10px;
  }

  .article-page--inflation-lens .lens-conversion-value {
    font-size: clamp(1.25rem, 7.2vw, 1.5rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
  }
}