.article-page-main {
  padding-bottom: 5rem;
}

.article-container {
  width: calc(100% - 5rem);
  max-width: 1280px;
  margin-inline: auto;
}

.article-breadcrumb {
  padding-block: 1rem;
}

.article-breadcrumb ol {
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  color: var(--ink-600);
  font-size: 0.78rem;
  list-style: none;
}

.article-breadcrumb li { margin: 0; }
.article-breadcrumb li + li::before { margin-right: 0.4rem; color: var(--ink-500); content: "/"; }

.article-header {
  padding: 2rem 0 2.3rem;
  border-bottom: 1px solid var(--line);
}

.article-header .eyebrow {
  margin-bottom: 1.15rem;
  padding: 0;
  background: transparent;
  border: 0;
  border-radius: 0;
}

.article-header h1 {
  max-width: 18em;
  margin-bottom: 0.85rem;
  font-size: clamp(2.5rem, 4.2vw, 3.45rem);
}

.article-kicker {
  margin-bottom: 0.65rem;
  color: var(--ink-800);
  font-size: clamp(1rem, 1.55vw, 1.2rem);
  font-weight: 720;
}

.article-lead {
  max-width: 880px;
  color: var(--ink-700);
  font-size: 1rem;
}

.article-meta {
  margin: 1.5rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1.35rem;
  list-style: none;
}

.article-meta li {
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--ink-700);
  font-size: 0.77rem;
}

.article-meta img {
  width: 1rem;
  height: 1rem;
  filter: invert(31%) sepia(25%) saturate(827%) hue-rotate(172deg) brightness(91%) contrast(88%);
}

.article-summary {
  margin-block: 2rem;
  padding: 1.25rem 1.5rem;
  background: var(--blue-050);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.article-summary h2 {
  margin-bottom: 0.85rem;
  font-size: 1rem;
  letter-spacing: -0.015em;
}

.article-summary ol {
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem 1.5rem;
  counter-reset: summary;
  list-style: none;
}

.article-summary li {
  margin: 0;
  display: grid;
  grid-template-columns: 1.65rem 1fr;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink-900);
  font-size: 0.83rem;
  font-weight: 740;
  counter-increment: summary;
}

.article-summary li::before {
  width: 1.65rem;
  height: 1.65rem;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--blue-600);
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 850;
  content: counter(summary);
}

.reading-progress {
  margin: 2rem 0 1.3rem;
  display: grid;
  grid-template-columns: auto minmax(120px, 240px) auto;
  align-items: center;
  gap: 0.8rem;
  color: var(--ink-600);
  font-size: 0.7rem;
  font-weight: 700;
}

.reading-progress__track {
  height: 4px;
  overflow: hidden;
  background: var(--line);
  border-radius: 999px;
}

.reading-progress__bar {
  width: 0;
  height: 100%;
  display: block;
  background: var(--blue-600);
  border-radius: inherit;
  transition: width 120ms linear;
}

.article-toc-mobile {
  display: none;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 780px) minmax(240px, 280px);
  justify-content: space-between;
  gap: 4rem;
  align-items: start;
}

.article-body {
  min-width: 0;
  color: var(--ink-800);
}

.article-body > :first-child { margin-top: 0; }

.article-body h2 {
  margin: 3.2rem 0 1.2rem;
  padding-left: 1rem;
  border-left: 5px solid var(--blue-600);
  font-size: clamp(1.55rem, 2.6vw, 2.1rem);
  scroll-margin-top: 7rem;
}

.article-body h3 {
  margin: 2.3rem 0 0.75rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid var(--line);
  font-size: clamp(1.15rem, 1.9vw, 1.4rem);
  scroll-margin-top: 7rem;
}

.article-body p {
  margin: 0 0 1.25rem;
  line-height: 1.95;
}

.article-body ul,
.article-body ol {
  margin: 0 0 1.5rem;
  padding: 1.1rem 1.1rem 1.1rem 2.6rem;
  background: var(--blue-050);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.article-body li + li { margin-top: 0.65rem; }

.article-body a { font-weight: 680; }
.article-body strong { color: var(--ink-950); }

.article-note {
  margin: 1.6rem 0;
  padding: 1.2rem 1.35rem;
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: 0.85rem;
  background: var(--teal-100);
  border: 1px solid #b9e4e5;
  border-radius: var(--radius-sm);
}

.article-note--risk {
  background: var(--danger-bg);
  border-color: #efc7cb;
}

.article-note img {
  width: 1.65rem;
  height: 1.65rem;
  filter: invert(42%) sepia(89%) saturate(780%) hue-rotate(132deg) brightness(81%) contrast(95%);
}

.article-note--risk img {
  filter: invert(26%) sepia(39%) saturate(1524%) hue-rotate(309deg) brightness(91%) contrast(90%);
}

.article-note h2,
.article-note h3 {
  margin: 0 0 0.25rem;
  padding: 0;
  border: 0;
  font-size: 0.95rem;
  letter-spacing: 0;
}

.article-note p { margin: 0; font-size: 0.82rem; line-height: 1.75; }

.article-toc {
  position: sticky;
  top: 7.1rem;
  padding: 1.2rem;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}

.article-toc h2 {
  margin-bottom: 0.7rem;
  font-size: 0.95rem;
}

.article-toc ol,
.article-toc-mobile ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.article-toc li,
.article-toc-mobile li { margin: 0; }

.article-toc li + li,
.article-toc-mobile li + li { border-top: 1px solid var(--line); }

.article-toc a,
.article-toc-mobile a {
  min-height: 44px;
  display: grid;
  grid-template-columns: 2rem 1fr;
  align-items: center;
  gap: 0.35rem;
  color: var(--ink-800);
  font-size: 0.75rem;
  font-weight: 680;
  text-decoration: none;
}

.article-toc a span,
.article-toc-mobile a span {
  color: var(--ink-600);
  font-size: 0.66rem;
  font-weight: 780;
}

.article-toc a[aria-current="location"],
.article-toc-mobile a[aria-current="location"] { color: var(--blue-700); }

.article-toc a[aria-current="location"] span,
.article-toc-mobile a[aria-current="location"] span { color: var(--blue-600); }

.article-location {
  margin: 0.75rem 0 0;
  padding-top: 0.75rem;
  color: var(--ink-600);
  border-top: 1px solid var(--line);
  font-size: 0.69rem;
}

.article-location strong { margin-left: 0.55rem; color: var(--blue-700); }

.article-next {
  margin-top: 3.5rem;
  padding: 1.2rem 1.35rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--ink-900);
  background: var(--blue-050);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  text-decoration: none;
}

.article-next small { display: block; color: var(--ink-600); font-size: 0.7rem; }
.article-next strong { font-size: 0.9rem; }
.article-next img { width: 1.1rem; height: 1.1rem; opacity: 0.55; }

@media (max-width: 980px) {
  .article-container { width: calc(100% - 2.5rem); }
  .article-layout { grid-template-columns: minmax(0, 1fr) 240px; gap: 2rem; }
}

@media (max-width: 820px) {
  .article-header { padding-top: 1.75rem; }
  .article-summary ol { grid-template-columns: 1fr; }
  .article-layout { display: block; }
  .article-toc { display: none; }
  .article-toc-mobile {
    margin: 1.1rem 0 2rem;
    display: block;
    background: var(--paper);
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-sm);
  }
  .article-toc-mobile summary {
    min-height: 52px;
    padding: 0.85rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    color: var(--ink-950);
    font-size: 0.84rem;
    font-weight: 780;
    cursor: pointer;
    list-style: none;
  }
  .article-toc-mobile summary::-webkit-details-marker { display: none; }
  .article-toc-mobile summary::after { color: var(--blue-600); content: "+"; font-size: 1.2rem; }
  .article-toc-mobile[open] summary::after { content: "−"; }
  .article-toc-mobile ol { padding: 0 1rem 0.7rem; border-top: 1px solid var(--line); }
}

@media (max-width: 620px) {
  .article-container { width: calc(100% - 1.25rem); }
  .article-breadcrumb { padding-block: 0.7rem; }
  .article-header { padding: 1.5rem 0 1.7rem; }
  .article-header h1 { font-size: clamp(2.15rem, 10vw, 2.7rem); }
  .article-lead { font-size: 0.95rem; }
  .article-meta { gap: 0.65rem 1rem; }
  .article-summary { margin-block: 1.4rem; padding: 1rem; }
  .reading-progress { grid-template-columns: auto minmax(90px, 1fr) auto; }
  .article-body h2 { margin-top: 2.7rem; padding-left: 0.8rem; }
  .article-body h3 { margin-top: 2rem; }
  .article-body p { line-height: 1.9; }
  .article-body ul, .article-body ol { padding: 1rem 0.9rem 1rem 2.25rem; }
  .article-next { align-items: flex-start; }
}

@media print {
  .reading-progress, .article-toc, .article-toc-mobile, .article-next { display: none; }
  .article-layout { display: block; }
}