:root {
  color-scheme: light;
  --bg: #f4f7f7;
  --surface: #ffffff;
  --surface-2: #e7f1f0;
  --text: #071b29;
  --muted: #405663;
  --subtle: #607680;
  --line: rgba(7, 27, 41, .16);
  --accent: #08717c;
  --accent-bright: #055b66;
  --pistachio: #c8f0e6;
  --max: 1260px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP", "Yu Gothic", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img, video { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent-bright); }
a:focus-visible, button:focus-visible, video:focus-visible {
  outline: 3px solid var(--accent-bright);
  outline-offset: 4px;
}
::selection { background: #a6e7de; color: var(--text); }
.section-shell { width: min(calc(100% - 72px), var(--max)); margin-inline: auto; }
.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 120;
  padding: 10px 16px;
  background: var(--accent);
  color: #fff;
  border-radius: 4px;
}
.skip-link:focus { top: 12px; }

.site-header {
  position: relative;
  z-index: 50;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
  background: #071b29;
  backdrop-filter: blur(18px);
}
.header-inner {
  width: min(calc(100% - 72px), var(--max));
  min-height: 76px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}
.brand { display: inline-flex; align-items: center; gap: 12px; line-height: 1; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  background: var(--pistachio);
  border: 0;
  border-radius: 4px;
  color: var(--text);
  font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", sans-serif;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0;
}
.brand-dot, .footer-brand span { color: var(--accent); }
.brand-word { display: grid; gap: 3px; color: #fff; font-size: 20px; font-weight: 800; letter-spacing: .06em; }
.brand-word small { color: #8de1d3; font-family: Arial, sans-serif; font-size: 8px; font-weight: 800; letter-spacing: .2em; }
.brand:hover .brand-word { color: #fff; }
.primary-nav { display: flex; align-items: center; gap: clamp(16px, 3vw, 38px); }
.primary-nav a {
  font-size: 14px;
  font-weight: 600;
  color: #ccdcdf;
  transition: color .18s ease;
}
.primary-nav a:hover { color: #a6e7de; }
.eyebrow, .intro-kicker, .section-index, .rail-label, .image-credit, .coming-soon {
  font-size: 12px;
  font-weight: 750;
  letter-spacing: .18em;
  line-height: 1.4;
}
.eyebrow, .section-index { color: var(--accent); }
.kicker-line { display: inline-block; width: 34px; height: 1px; background: var(--accent); vertical-align: middle; margin-right: 10px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 10px 22px;
  border: 1px solid var(--line);
  border-radius: 5px;
  font-size: 14px;
  font-weight: 750;
  letter-spacing: .04em;
  transition: background .18s ease, border-color .18s ease, color .18s ease, transform .18s ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.button-primary:hover { background: var(--accent-bright); border-color: var(--accent-bright); color: #fff; }
.button-quiet:hover { border-color: var(--accent); }

/* Home */
.home-intro {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, .82fr);
  align-items: center;
  gap: clamp(30px, 5vw, 80px);
  min-height: 650px;
  padding-block: clamp(65px, 8vw, 110px);
  overflow: hidden;
}
.home-intro::before {
  content: "";
  position: absolute;
  inset: 0 0 auto auto;
  width: 72%;
  height: 100%;
  pointer-events: none;
  background: radial-gradient(circle at 68% 45%, #eaf2ff, transparent 66%);
}
.intro-copy { position: relative; z-index: 1; }
.intro-kicker { color: var(--accent); }
.home-intro h1, .about-section h2, .article-hero h1, .story-section h2, .article-endcap h2 {
  font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP", sans-serif;
  font-weight: 800;
}
.home-intro h1 {
  position: relative;
  z-index: 1;
  margin: 29px 0 24px;
  max-width: 820px;
  font-size: clamp(42px, 5.2vw, 78px);
  line-height: 1.34;
  letter-spacing: -.065em;
}
.home-intro h1 em, .article-hero h1 em { color: var(--accent); font-style: normal; }
.intro-copy > p {
  position: relative;
  z-index: 1;
  max-width: 590px;
  color: var(--muted);
  font-size: clamp(16px, 1.45vw, 19px);
  line-height: 2;
}
.text-link {
  position: relative;
  z-index: 1;
  display: inline-flex;
  gap: 20px;
  align-items: center;
  margin-top: 27px;
  padding: 13px 24px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-size: 15px;
  font-weight: 800;
  box-shadow: 0 9px 23px rgba(50, 100, 237, .19);
}
.text-link:hover { background: var(--accent-bright); color: #fff; transform: translateY(-2px); }
.text-link span { color: #fff; font-size: 20px; line-height: 1; }
.intro-visual { position: relative; z-index: 1; display: block; width: min(100%, 450px); aspect-ratio: .82; justify-self: center; overflow: hidden; border-radius: 22px; background: var(--text); box-shadow: 0 20px 48px rgba(21, 44, 86, .14); color: #fff; }
.intro-visual:hover { color: #fff; }
.intro-image-wrap { position: absolute; inset: 0; display: block; }
.intro-image-wrap img { width: 100%; height: 100%; object-fit: cover; object-position: center 12%; transition: transform .4s ease; }
.intro-visual:hover img { transform: scale(1.025); }
.intro-cover-copy { position: absolute; inset: auto 0 0; display: grid; gap: 9px; padding: 90px 28px 26px; background: linear-gradient(transparent, rgba(5, 17, 38, .96)); }
.intro-cover-meta { color: #dcecb3; font-size: 11px; font-weight: 800; letter-spacing: .18em; }
.intro-cover-title { font-size: clamp(24px, 2.3vw, 31px); font-weight: 800; line-height: 1.45; letter-spacing: -.045em; }
.intro-cover-note { display: flex; align-items: center; justify-content: space-between; font-size: 11px; font-weight: 650; letter-spacing: .03em; }
.intro-cover-note span { font-size: 19px; line-height: 1; }
.stories-section { padding-block: 10px 120px; }
.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 25px;
  border-bottom: 1px solid var(--line);
}
.section-heading .eyebrow { margin: 0 0 9px; }
.section-heading h2 { margin: 0; font-size: 30px; font-weight: 800; letter-spacing: .01em; }
.section-heading > p { margin: 0; color: var(--subtle); font-size: 14px; }
.feature-card {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  min-height: 610px;
  margin-top: 28px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--surface);
  overflow: hidden;
  box-shadow: 0 14px 42px rgba(21, 44, 86, .06);
}
.feature-image-link { position: relative; overflow: hidden; min-height: 610px; }
.feature-image-link img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform .6s ease;
}
.feature-image-link:hover img { transform: scale(1.03); }
.image-credit {
  position: absolute;
  left: 22px;
  bottom: 22px;
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(7, 14, 21, .78);
  color: #fff;
  font-size: 10px;
}
.feature-content { display: flex; flex-direction: column; padding: clamp(30px, 5.5vw, 78px); }
.feature-number { color: var(--accent); font-family: Arial, sans-serif; font-size: 66px; font-weight: 850; line-height: 1; }
.feature-number span { font-family: inherit; font-size: 22px; color: var(--muted); letter-spacing: .12em; }
.card-tag { align-self: flex-start; margin: 40px 0 15px; padding: 5px 13px; border-radius: 8px; background: var(--pistachio); color: var(--text); font-size: 13px; font-weight: 800; letter-spacing: .08em; }
.feature-content h3 {
  margin: 0;
  font-weight: 800;
  font-size: clamp(28px, 3vw, 43px);
  line-height: 1.5;
  letter-spacing: -.045em;
}
.feature-summary { margin: 20px 0 0; max-width: 530px; color: var(--muted); font-size: 16px; line-height: 1.9; }
.feature-meta { display: flex; flex-wrap: wrap; gap: 6px 24px; margin-top: 23px; color: var(--subtle); font-size: 13px; }
.feature-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: auto; padding-top: 36px; }
.next-story {
  display: grid;
  grid-template-columns: 100px minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
  margin-top: 24px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--surface);
}
.next-story-image { width: 100px; height: 122px; overflow: hidden; border-radius: 12px; }
.next-story-image img { width: 100%; height: 100%; object-fit: cover; }
.next-story .eyebrow { margin: 0 0 6px; }
.next-story h3 { margin: 0; font-size: clamp(19px, 2vw, 25px); line-height: 1.5; }
.next-story p:last-child { margin: 7px 0 0; color: var(--muted); font-size: 13px; }
.coming-soon { color: var(--subtle); white-space: nowrap; }
.about-section { padding-block: 96px 115px; border-top: 1px solid var(--line); background: #eaf2ff; }
.about-grid { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 50px; }
.about-grid > .eyebrow { margin-top: 15px; }
.about-section h2 { margin: 0; font-size: clamp(32px, 4vw, 58px); line-height: 1.5; letter-spacing: -.04em; }
.about-section p:not(.eyebrow) { max-width: 650px; margin: 22px 0 0; color: var(--muted); font-size: 17px; line-height: 2; }

/* Article */
.reading-progress { position: fixed; inset: 0 0 auto; height: 3px; z-index: 110; pointer-events: none; }
.reading-progress span { display: block; height: 100%; width: 0; background: var(--accent); }
.article-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
  min-height: 720px;
  padding-top: 40px;
  padding-bottom: 55px;
  gap: clamp(30px, 5vw, 80px);
  align-items: center;
}
.breadcrumb { display: inline-block; margin-bottom: 50px; color: var(--muted); font-size: 14px; }
.article-hero .eyebrow { margin: 0 0 26px; }
.eyebrow-divider { padding-inline: 8px; color: var(--subtle); }
.article-hero h1 {
  margin: 0;
  font-size: clamp(35px, 4vw, 61px);
  line-height: 1.45;
  letter-spacing: -.06em;
}
.article-deck { max-width: 650px; margin: 27px 0 0; color: var(--muted); font-size: 17px; line-height: 1.9; }
.article-meta { display: flex; flex-wrap: wrap; gap: 5px 22px; margin-top: 30px; color: var(--subtle); font-size: 13px; }
.article-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 32px; }
.article-hero-figure { margin: 0; align-self: stretch; display: flex; flex-direction: column; min-height: 620px; }
.article-hero-figure img { width: 100%; flex: 1; min-height: 0; max-height: 680px; object-fit: cover; object-position: center 36%; border-radius: 26px; }
.article-hero-figure figcaption, .inline-figure figcaption { padding-top: 9px; color: var(--subtle); font-size: 12px; line-height: 1.6; }
.article-layout {
  display: grid;
  grid-template-columns: 205px minmax(0, 730px);
  gap: clamp(48px, 8vw, 132px);
  padding-top: 75px;
  padding-bottom: 135px;
  border-top: 1px solid var(--line);
}
.article-rail { position: sticky; top: 30px; align-self: start; }
.rail-label { margin: 0 0 18px; color: var(--accent); }
.article-rail nav { display: grid; gap: 10px; padding-left: 15px; border-left: 1px solid var(--line); }
.article-rail nav a { color: var(--muted); font-size: 13px; line-height: 1.5; }
.article-rail nav a:hover { color: var(--accent-bright); }
.rail-actions { display: grid; gap: 8px; margin-top: 35px; }
.mini-button {
  padding: 10px 12px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
  text-align: left;
}
.mini-button:hover, .mini-button[aria-pressed="true"] { border-color: var(--accent); color: var(--accent-bright); }
.article-content { min-width: 0; }
.article-content p { margin: 0 0 1.45em; color: #263954; font-size: 17px; line-height: 2.08; }
.article-content strong { color: var(--text); font-weight: 760; }
.article-lead p:first-child { color: var(--text); font-size: clamp(20px, 2.2vw, 26px); line-height: 1.9; font-weight: 750; }
.article-lead { padding-bottom: 40px; }
.video-section { margin: 10px 0 95px; padding: 34px; border: 1px solid var(--line); border-radius: 24px; background: var(--surface-2); }
.video-heading { display: flex; align-items: baseline; flex-wrap: wrap; gap: 14px; margin-bottom: 22px; }
.video-heading h2 { margin: 0; font-size: 21px; }
.video-frame { display: flex; justify-content: center; align-items: center; min-height: 445px; padding: 20px; border-radius: 18px; background: #0b1937; }
.video-frame video, .video-frame iframe, .youtube-poster { width: min(100%, 270px); max-height: 520px; aspect-ratio: 9 / 16; object-fit: contain; background: #000; }
.video-frame iframe { height: auto; border: 0; }
.video-fallback { color: #fff; text-align: center; text-underline-offset: 4px; }
.youtube-poster { position: relative; display: block; padding: 0; border: 0; cursor: pointer; overflow: hidden; }
.youtube-poster img { width: 100%; height: 100%; object-fit: cover; }
.youtube-play-icon { position: absolute; left: 50%; top: 50%; display: grid; place-items: center; width: 62px; height: 62px; transform: translate(-50%, -50%); border-radius: 50%; background: var(--accent); color: #fff; font-size: 23px; padding-left: 4px; box-shadow: 0 8px 35px #000a; }
.youtube-poster:hover .youtube-play-icon { background: var(--accent-bright); }
.youtube-link { display: inline-block; margin-top: 16px; color: var(--accent-bright); font-size: 13px; font-weight: 700; text-decoration: underline; text-underline-offset: 4px; }
.youtube-link[hidden] { display: none; }
.article-content .media-note { margin: 14px 0 0; color: var(--subtle); font-size: 12px; line-height: 1.7; }
.story-section { margin-top: 90px; scroll-margin-top: 35px; }
.section-index { margin: 0 0 18px !important; font-size: 12px !important; }
.story-section h2 { margin: 0 0 28px; font-size: clamp(30px, 3vw, 42px); line-height: 1.5; letter-spacing: -.045em; }
.source-ref { margin-left: 4px; color: var(--accent); font-size: 13px; white-space: nowrap; }
.fact-card {
  display: grid;
  gap: 6px;
  margin: 40px 0;
  padding: 24px 28px;
  border-left: 4px solid var(--accent);
  border-radius: 0 18px 18px 0;
  background: var(--surface-2);
}
.fact-card span { color: var(--accent); font-size: 12px; font-weight: 700; letter-spacing: .12em; }
.fact-card strong { font-size: clamp(19px, 2vw, 23px); }
.fact-card small { color: var(--muted); font-size: 13px; }
.inline-figure { margin: 40px 0 0; }
.inline-figure img { width: 100%; max-height: 480px; object-fit: cover; object-position: center 25%; border-radius: 20px; }
.closing-section { padding-bottom: 72px; border-bottom: 1px solid var(--line); }
.article-content .closing-question {
  margin: 38px 0 0;
  color: var(--accent-bright);
  font-weight: 800;
  font-size: clamp(30px, 3.4vw, 46px);
  line-height: 1.6;
}
.sources-section { padding-top: 35px; scroll-margin-top: 35px; }
.sources-section h2 { margin: 0 0 22px; font-size: 20px; }
.sources-section ol { margin: 0; padding-left: 23px; }
.sources-section li { padding: 0 0 12px 6px; color: var(--subtle); font-size: 14px; line-height: 1.75; }
.sources-section li a { color: var(--muted); text-decoration: underline; text-underline-offset: 3px; }
.sources-section li a:hover { color: var(--accent-bright); }
.article-content .sources-section p { margin-top: 22px; color: var(--subtle); font-size: 13px; line-height: 1.8; }
.article-endcap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 170px;
  gap: 35px;
  align-items: center;
  padding-block: 50px;
  border-top: 1px solid var(--line);
}
.article-endcap h2 { margin: 14px 0 10px; font-size: clamp(28px, 3vw, 42px); line-height: 1.5; }
.article-endcap p:last-child { color: var(--muted); }
.article-endcap img { width: 170px; height: 180px; object-fit: cover; border-radius: 18px; }

.site-footer { border-top: 1px solid var(--line); }
.footer-inner { min-height: 115px; display: flex; align-items: center; justify-content: space-between; gap: 25px; }
.footer-brand { font-size: 20px; font-weight: 800; letter-spacing: .06em; }
.footer-inner > span:nth-child(2), .footer-inner > a:last-child { color: var(--subtle); font-size: 13px; }
.footer-inner > span:nth-child(2) a { color: var(--accent); }
.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  z-index: 100;
  transform: translate(-50%, 20px);
  padding: 11px 18px;
  border: 1px solid var(--accent);
  background: var(--surface-2);
  color: var(--text);
  font-size: 13px;
  border-radius: 12px;
  box-shadow: 0 12px 40px rgba(21, 44, 86, .18);
  opacity: 0;
  pointer-events: none;
  transition: transform .2s ease, opacity .2s ease;
}
.toast.is-visible { opacity: 1; transform: translate(-50%, 0); }

/* Independent deep-tech editorial identity */
.home-intro {
  display: block;
  min-height: 0;
  padding-block: 70px 0;
  overflow: visible;
}
.home-intro::before { content: none; }
.intro-copy {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, .55fr);
  column-gap: clamp(35px, 5vw, 84px);
  align-items: end;
}
.intro-kicker { grid-column: 1 / -1; color: var(--accent); }
.home-intro h1 {
  margin: 19px 0 31px;
  max-width: none;
  font-size: clamp(50px, 7vw, 102px);
  line-height: 1.22;
  letter-spacing: -.075em;
}
.intro-side { padding-bottom: 37px; }
.intro-side p { margin: 0; max-width: 370px; color: var(--muted); font-size: 16px; line-height: 1.95; }
.text-link {
  margin-top: 24px;
  background: var(--text);
  border-radius: 5px;
  box-shadow: none;
}
.text-link:hover { background: var(--accent-bright); }
.intro-visual {
  display: block;
  width: 100%;
  max-width: none;
  aspect-ratio: 2.5;
  margin: 0;
  border-radius: 6px;
  box-shadow: none;
}
.intro-visual img { width: 100%; height: 100%; object-fit: cover; object-position: center 42%; }
.intro-visual figcaption {
  position: absolute;
  inset: auto 0 0;
  display: flex;
  justify-content: space-between;
  gap: 15px;
  padding: 28px 24px 17px;
  background: linear-gradient(transparent, rgba(1, 12, 22, .84));
  color: #fff;
  font-family: Arial, sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .17em;
}
.intro-visual figcaption b { padding-inline: 10px; color: #8de1d3; }
.intro-visual figcaption span:last-child { font-family: inherit; font-size: 10px; letter-spacing: .05em; }
.topic-strip {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px 28px;
  min-height: 77px;
  border-bottom: 1px solid var(--line);
  color: var(--text);
  font-family: Arial, sans-serif;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .12em;
}
.topic-strip span:first-child { margin-right: auto; color: var(--subtle); font-size: 10px; }
.topic-strip span:not(:first-child)::before { content: ""; display: inline-block; width: 5px; height: 5px; margin-right: 9px; border-radius: 50%; background: var(--accent); vertical-align: 2px; }
.stories-section { padding-top: 78px; }
.feature-card { border-radius: 6px; box-shadow: none; }
.next-story { border-radius: 6px; }
.next-story-image { border-radius: 3px; }
.card-tag { border-radius: 3px; }
.about-section { border-top: 0; background: var(--text); color: #fff; }
.about-section .eyebrow { color: #8de1d3; }
.about-section p:not(.eyebrow) { color: #c5d8dc; }
.article-hero-figure img, .inline-figure img { border-radius: 6px; }
.video-section { border-radius: 6px; }
.video-frame { border-radius: 4px; }
.site-footer { border-top: 0; background: #061620; color: #fff; }
.footer-inner > span:nth-child(2), .footer-inner > a:last-child { color: #b2cbd0; }
.footer-inner > span:nth-child(2) a { color: #8de1d3; }

@media (max-width: 1000px) {
  .intro-copy { grid-template-columns: minmax(0, 1.3fr) minmax(245px, .7fr); gap: 25px; }
  .home-intro h1 { font-size: clamp(48px, 6.6vw, 72px); }
  .feature-content { padding: 36px; }
  .feature-card, .feature-image-link { min-height: 550px; }
  .article-layout { grid-template-columns: 160px minmax(0, 1fr); gap: 40px; }
  .article-hero { min-height: 0; }
}
@media (max-width: 760px) {
  .section-shell, .header-inner { width: min(calc(100% - 36px), var(--max)); }
  .header-inner { min-height: 64px; }
  .brand-mark { width: 31px; height: 31px; font-size: 21px; }
  .brand-word { font-size: 16px; }
  .primary-nav { gap: 13px; }
  .primary-nav a { font-size: 12px; }
  .primary-nav a:last-child { display: none; }
  .home-intro { padding-block: 52px 0; }
  .intro-copy { display: block; }
  .home-intro h1 { font-size: clamp(45px, 9vw, 70px); margin-bottom: 22px; }
  .intro-side { padding-bottom: 34px; }
  .intro-visual { width: 100%; aspect-ratio: 1.45; }
  .topic-strip { padding-block: 17px; }
  .topic-strip span:first-child { width: 100%; }
  .section-heading { display: block; }
  .section-heading > p { margin-top: 10px; }
  .feature-card { grid-template-columns: 1fr; min-height: 0; }
  .feature-image-link { min-height: 0; height: auto; aspect-ratio: 1 / 1; }
  .feature-image-link img { object-position: center top; }
  .feature-content { padding: 29px 24px 34px; }
  .feature-number { font-size: 54px; }
  .card-tag { margin-top: 22px; }
  .feature-content h3 { font-size: 30px; }
  .next-story { grid-template-columns: 75px minmax(0, 1fr); gap: 16px; }
  .next-story-image { width: 75px; height: 95px; }
  .coming-soon { grid-column: 2; }
  .about-grid { grid-template-columns: 1fr; gap: 10px; }
  .about-section { padding-block: 72px; }
  .article-hero { grid-template-columns: 1fr; gap: 25px; padding-top: 26px; padding-bottom: 55px; }
  .breadcrumb { margin-bottom: 30px; }
  .article-hero h1 { font-size: clamp(33px, 8vw, 48px); }
  .article-hero-figure { min-height: 0; }
  .article-hero-figure img { height: 420px; flex: none; }
  .article-layout { display: block; padding-top: 38px; padding-bottom: 85px; }
  .article-rail { position: static; margin-bottom: 44px; }
  .article-rail nav { display: flex; gap: 18px; overflow-x: auto; padding: 0 0 12px; border-left: 0; border-bottom: 1px solid var(--line); white-space: nowrap; }
  .rail-actions { display: flex; margin-top: 16px; }
  .video-section { margin-bottom: 75px; }
  .story-section { margin-top: 75px; }
}
@media (max-width: 480px) {
  .section-shell, .header-inner { width: min(calc(100% - 28px), var(--max)); }
  .brand { gap: 8px; }
  .primary-nav { gap: 10px; }
  .home-intro { padding-block: 40px 0; }
  .home-intro h1 { font-size: clamp(42px, 11vw, 56px); }
  .intro-side p { font-size: 15px; }
  .intro-visual { aspect-ratio: 1.13; }
  .intro-visual img { object-position: 48% center; }
  .intro-visual figcaption { padding: 20px 12px 12px; font-size: 9px; }
  .intro-visual figcaption b { padding-inline: 4px; }
  .topic-strip { gap: 10px 18px; font-size: 10px; }
  .stories-section { padding-top: 58px; }
  .stories-section { padding-bottom: 80px; }
  .feature-content h3 { font-size: 26px; }
  .feature-summary { font-size: 15px; }
  .feature-actions { display: grid; }
  .next-story h3 { font-size: 17px; }
  .article-hero h1 { font-size: 32px; }
  .article-deck { font-size: 16px; }
  .article-hero-figure img { height: 345px; }
  .article-content p { font-size: 16px; line-height: 1.95; }
  .article-lead p:first-child { font-size: 20px; }
  .video-section { padding: 20px 14px; }
  .video-frame { min-height: 390px; padding: 8px; }
  .video-frame video, .video-frame iframe, .youtube-poster { width: min(100%, 220px); }
  .story-section h2 { font-size: 28px; }
  .article-endcap { grid-template-columns: 1fr 85px; gap: 12px; }
  .article-endcap img { width: 85px; height: 110px; }
  .footer-inner { min-height: 130px; display: grid; grid-template-columns: 1fr 1fr; gap: 0; align-content: center; }
  .footer-inner > span:nth-child(2) { grid-column: 1 / -1; order: 3; margin-top: 6px; }
  .footer-inner > a:last-child { text-align: right; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}