/* Phase 2A — clean, composed men's grooming visual system. */
:root {
  --p2-ink: #10272d;
  --p2-ink-2: #1b3940;
  --p2-body: #50666b;
  --p2-canvas: #f2f5f3;
  --p2-surface: #fff;
  --p2-surface-2: #e8efed;
  --p2-line: #ccd8d5;
  --p2-line-strong: #a9bbb7;
  --p2-accent: #176c6d;
  --p2-accent-strong: #0d5559;
  --p2-accent-soft: #dcebea;
  --p2-steel: #668086;
  --p2-copper: #9a664f;
  --p2-warning: #80602f;
  --p2-warning-soft: #f3ead8;
  --p2-danger: #854b3e;
  --p2-danger-soft: #f2e2dd;
  --p2-focus: #087ea4;
  --p2-shadow-sm: 0 10px 28px rgba(16, 39, 45, .07);
  --p2-shadow-lg: 0 26px 80px rgba(16, 39, 45, .12);
  --p2-radius-sm: 10px;
  --p2-radius-md: 18px;
  --p2-radius-lg: 28px;
  --p2-space-1: 4px;
  --p2-space-2: 8px;
  --p2-space-3: 12px;
  --p2-space-4: 18px;
  --p2-space-5: 26px;
  --p2-space-6: 38px;
  --p2-space-7: 56px;
  --p2-space-8: 88px;
  --ink: var(--p2-ink);
  --ink-soft: var(--p2-body);
  --paper: var(--p2-canvas);
  --white: var(--p2-surface);
  --line: var(--p2-line);
  --teal: var(--p2-accent);
  --teal-dark: var(--p2-accent-strong);
  --sage: var(--p2-accent-soft);
  --clay: var(--p2-copper);
  --clay-soft: var(--p2-danger-soft);
  --sand: #e7e8e2;
  --amber: var(--p2-warning);
  --amber-soft: var(--p2-warning-soft);
  --muted: #e9edeb;
  --focus: var(--p2-focus);
  --shadow: var(--p2-shadow-sm);
  --radius: var(--p2-radius-md);
  --shell: 1200px;
}

html {
  background: var(--p2-canvas);
  color: var(--p2-ink);
  font-family: "Yu Gothic UI", "Yu Gothic", "Hiragino Sans", "BIZ UDPGothic", Meiryo, sans-serif;
  font-size: 16px;
  font-feature-settings: "palt" 1;
  line-height: 1.78;
  letter-spacing: .012em;
}

body {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, .38), transparent 560px),
    var(--p2-canvas);
  color: var(--p2-ink);
}

::selection { background: #bedcda; color: var(--p2-ink); }
a { text-decoration-color: rgba(23, 108, 109, .48); text-underline-offset: .24em; }
p { color: var(--p2-body); }
h1, h2, h3, h4 {
  color: var(--p2-ink);
  font-family: "Yu Gothic UI", "Yu Gothic", "Hiragino Sans", "BIZ UDPGothic", Meiryo, sans-serif;
  font-feature-settings: "palt" 1;
  font-weight: 700;
  letter-spacing: -.035em;
  line-height: 1.32;
}
h1 { font-weight: 680; }
h2 { font-size: clamp(28px, 3.1vw, 42px); }
h3 { font-size: 20px; }

:focus-visible {
  outline: 3px solid var(--p2-focus);
  outline-offset: 4px;
}

.shell { width: min(calc(100% - 64px), var(--shell)); }
.shell--wide { width: min(calc(100% - 48px), 1360px); }
.section { padding: 104px 0; }
.section--compact { padding: 64px 0; }
.section--paper {
  border-block-color: var(--p2-line);
  background: rgba(255, 255, 255, .82);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid rgba(16, 39, 45, .11);
  background: rgba(248, 250, 249, .92);
  box-shadow: 0 8px 30px rgba(16, 39, 45, .04);
  backdrop-filter: blur(18px);
}
.site-header::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 3px;
  background: var(--p2-accent);
  content: "";
}
.site-header__inner { min-height: 82px; gap: 32px; padding-top: 3px; }
.brand { gap: 14px; }
.brand__mark {
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 12px;
  background: var(--p2-ink);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .16);
  color: #fff;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 19px;
}
.brand b {
  color: var(--p2-ink);
  font-family: Georgia, "Times New Roman", "Yu Mincho", serif;
  font-size: 17px;
  letter-spacing: .012em;
}
.brand small {
  margin-top: 1px;
  color: var(--p2-steel);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .08em;
}
.site-header nav { gap: 6px; }
.site-header nav a {
  position: relative;
  min-height: 44px;
  border-radius: 9px;
  padding: 0 12px;
  color: #2d474d;
  font-size: 13px;
  font-weight: 700;
}
.site-header nav a:hover { background: var(--p2-surface-2); color: var(--p2-accent-strong); }
.site-header .nav-cta {
  border: 1px solid var(--p2-ink);
  border-radius: 9px;
  padding-inline: 17px;
  background: var(--p2-ink);
  color: #fff;
}
.site-header .nav-cta:hover { background: var(--p2-accent-strong); color: #fff; }

.eyebrow, .kicker {
  margin-bottom: 14px;
  color: var(--p2-accent-strong);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .19em;
}
.eyebrow::before {
  display: inline-block;
  width: 22px;
  height: 2px;
  margin: 0 10px 3px 0;
  background: currentColor;
  content: "";
}
.kicker { color: #9fc0bd; }

.hero {
  position: relative;
  padding: 112px 0 122px;
  border-bottom: 1px solid var(--p2-line);
  background:
    linear-gradient(120deg, rgba(255, 255, 255, .9) 0 57%, rgba(220, 235, 234, .42) 57% 100%);
}
.hero::after {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 32%;
  height: 5px;
  background: var(--p2-accent);
  content: "";
}
.hero__grid { grid-template-columns: minmax(0, 1.08fr) minmax(390px, .92fr); gap: 86px; }
.hero h1 {
  max-width: 720px;
  margin: 0 0 32px;
  font-size: clamp(52px, 6vw, 78px);
  line-height: 1.18;
  letter-spacing: -.055em;
}
.hero__lead { max-width: 650px; margin-bottom: 38px; color: #4d6267; font-size: 17px; line-height: 1.95; }
.button-row { gap: 14px; }
.button {
  min-height: 52px;
  border-color: var(--p2-line-strong);
  border-radius: 10px;
  padding: 11px 22px;
  background: rgba(255, 255, 255, .78);
  box-shadow: 0 6px 18px rgba(16, 39, 45, .04);
  font-size: 14px;
  font-weight: 750;
  transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease, background .16s ease;
}
.button:hover { border-color: var(--p2-accent); box-shadow: var(--p2-shadow-sm); transform: translateY(-2px); }
.button--primary {
  border-color: var(--p2-ink);
  background: var(--p2-ink);
  box-shadow: 0 12px 28px rgba(16, 39, 45, .18);
  color: #fff;
}
.button--primary:hover { border-color: var(--p2-accent-strong); background: var(--p2-accent-strong); }
.button--quiet { background: var(--p2-surface); }

.hero-card {
  min-height: 520px;
  border: 0;
  border-radius: var(--p2-radius-lg);
  background: var(--p2-ink);
  box-shadow: var(--p2-shadow-lg);
  color: #fff;
}
.hero-card::before { inset: 18px; border-color: rgba(255, 255, 255, .14); border-radius: 20px; }
.hero-card::after {
  position: absolute;
  top: 0;
  right: 0;
  width: 42%;
  height: 7px;
  background: #58a2a0;
  content: "";
}
.hero-card__content { right: 38px; bottom: 36px; left: 38px; }
.hero-card h2 { color: #fff; font-size: 28px; letter-spacing: -.025em; }
.hero-card h2 span { color: #9ed0cc; }
.metric-list { border-color: rgba(255, 255, 255, .18); }
.metric-list dt { color: #a9bdbc; }
.metric-list dd { color: #fff; font-size: 15px; }
.hero-card .device-art__body { border-color: #d6e4e2; background: #edf4f3; }
.hero-card .device-art__head { border-color: #88b6b3; background: #31535a; }
.hero-card .device-art__light { background: #ca8165; box-shadow: 0 0 0 7px rgba(202, 129, 101, .12); }

.section-heading { max-width: 760px; margin-bottom: 48px; }
.section-heading h2 { margin-bottom: 14px; font-size: clamp(30px, 3.4vw, 46px); }
.section-heading p:last-child { max-width: 660px; font-size: 16px; line-height: 1.9; }
.category-launch-grid { gap: 24px; }
.category-launch-card {
  position: relative;
  min-height: 390px;
  overflow: hidden;
  border-color: var(--p2-line);
  border-radius: var(--p2-radius-lg);
  padding: 38px;
  background: var(--p2-surface);
  box-shadow: var(--p2-shadow-sm);
}
.category-launch-card::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 5px;
  background: var(--p2-accent);
  content: "";
}
.category-launch-card--underwear { border-color: #bacbc7; background: var(--p2-surface-2); }
.category-launch-card--underwear::before { background: var(--p2-ink-2); }
.category-launch-card h2 { max-width: 520px; font-size: clamp(30px, 3vw, 42px); line-height: 1.28; }
.category-label {
  margin-bottom: 26px;
  border-color: var(--p2-line-strong);
  border-radius: 7px;
  padding: 5px 10px;
  background: rgba(255, 255, 255, .7);
  color: var(--p2-accent-strong);
  font-size: 11px;
  letter-spacing: .08em;
}
.underwear-art__waist, .underwear-art__body { border-color: var(--p2-ink-2); }
.underwear-art__body { background: #cfdedb; }
.underwear-art__panel { border-color: var(--p2-accent); }
.underwear-art__drop { background: var(--p2-copper); }

.principle-grid { gap: 18px; }
.principle {
  min-height: 260px;
  border-color: var(--p2-line);
  border-radius: var(--p2-radius-md);
  padding: 32px;
  background: var(--p2-surface);
  box-shadow: 0 8px 24px rgba(16, 39, 45, .035);
}
.principle > span {
  margin-bottom: 54px;
  color: var(--p2-accent);
  font-family: ui-monospace, "Cascadia Mono", monospace;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .08em;
}
.principle h3 { font-size: 22px; }
.guide-grid { gap: 18px; }
.guide-card {
  min-height: 245px;
  border-color: var(--p2-line);
  border-radius: var(--p2-radius-md);
  padding: 32px;
  box-shadow: 0 7px 22px rgba(16, 39, 45, .035);
}
.guide-card:hover { border-color: var(--p2-accent); box-shadow: var(--p2-shadow-sm); transform: translateY(-3px); }
.guide-card > span { color: var(--p2-accent); font-size: 11px; letter-spacing: .12em; }
.guide-card h3 {
  font-family: inherit;
  font-size: 22px;
  line-height: 1.55;
  letter-spacing: -.025em;
}
.guide-card b, .method-link a, .text-link { color: var(--p2-accent-strong); }

.page-hero {
  position: relative;
  padding: 92px 0 100px;
  border-bottom: 1px solid var(--p2-line);
  background: rgba(255, 255, 255, .6);
}
.page-hero::after, .trust-hero::after, .product-hero::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  width: min(280px, 28vw);
  height: 4px;
  background: var(--p2-accent);
  content: "";
}
.page-hero__grid { gap: 88px; }
.page-hero h1 { margin-bottom: 28px; font-size: clamp(46px, 5.6vw, 68px); line-height: 1.24; }
.page-hero > .shell > p:last-child, .page-hero__grid > div > p:last-child { font-size: 16px; line-height: 1.95; }
.breadcrumbs { margin-bottom: 52px; color: var(--p2-steel); font-size: 12px; }
.breadcrumbs a { color: var(--p2-steel); }
.note-card {
  border: 1px solid var(--p2-line);
  border-radius: var(--p2-radius-md);
  padding: 32px;
  background: var(--p2-surface);
  box-shadow: var(--p2-shadow-sm);
}
.note-card h2 { font-size: 21px; }
.check-list li { padding-block: 14px; border-color: var(--p2-line); }
.check-list li::before { color: var(--p2-accent); }
.split { gap: 92px; }
.action-grid { gap: 20px; }
.action-card {
  min-height: 310px;
  border-color: var(--p2-line);
  border-radius: var(--p2-radius-md);
  padding: 36px;
  box-shadow: var(--p2-shadow-sm);
}
.action-card--accent { background: var(--p2-accent-soft); }
.action-card__index { color: var(--p2-accent); font-family: ui-monospace, monospace; font-size: 17px; }
.type-card, .status-definition-grid > div {
  border-color: var(--p2-line);
  border-radius: var(--p2-radius-md);
  background: var(--p2-surface);
  box-shadow: 0 7px 22px rgba(16, 39, 45, .035);
}
.type-card--primary { border-color: #9fbdb8; background: var(--p2-accent-soft); }
.boundary-note { border-left-color: var(--p2-accent); background: var(--p2-accent-soft); }

.filter-panel {
  grid-template-columns: .72fr 1.28fr;
  gap: 46px;
  border: 0;
  border-radius: var(--p2-radius-lg);
  padding: 34px 36px;
  background: var(--p2-ink);
  box-shadow: var(--p2-shadow-lg);
  color: #fff;
}
.filter-panel .eyebrow { color: #8bc3bf; }
.filter-panel h2 { color: #fff; font-size: 28px; }
.filter-panel p, .filter-panel .result-note { color: #b9c9ca; }
.filter-panel .result-note { border-color: rgba(255, 255, 255, .16); }
.filter-chip span {
  min-height: 46px;
  border-color: rgba(255, 255, 255, .24);
  border-radius: 9px;
  background: rgba(255, 255, 255, .08);
  color: #fff;
  font-size: 13px;
}
.filter-chip span:hover { border-color: rgba(255, 255, 255, .5); background: rgba(255, 255, 255, .13); }
.filter-chip input:checked + span { border-color: #8bc3bf; background: #d8ebe9; color: var(--p2-ink); }
.filter-panel .button { border-color: rgba(255, 255, 255, .35); background: transparent; color: #fff; box-shadow: none; }

.comparison-desktop {
  overflow: hidden;
  border: 1px solid var(--p2-line);
  border-radius: var(--p2-radius-md);
  box-shadow: var(--p2-shadow-sm);
}
.comparison-table { border-collapse: collapse; }
.comparison-table caption { padding: 0 0 18px; font-size: 13px; }
.comparison-table th, .comparison-table td { border-color: var(--p2-line); padding: 22px 18px; }
.comparison-table tr > *:first-child { width: 158px; border-left: 0; }
.comparison-table thead th { border-top: 0; background: #f8faf9; }
.comparison-table tbody th { background: #e9efed; color: #29464c; font-size: 12px; letter-spacing: .035em; }
.comparison-table td { background: var(--p2-surface); }
.comparison-table tbody tr:nth-child(even) td { background: #fbfcfc; }
.table-product { min-height: 130px; }
.table-product h3 { font-size: 15px; line-height: 1.55; }
.product-maker { color: var(--p2-accent); font-size: 10px; letter-spacing: .13em; }
.model-number { color: var(--p2-steel); font-size: 11px; }
.state-value { color: var(--p2-body); }
.status-badge {
  gap: 7px;
  border-radius: 7px;
  padding: 6px 10px;
  font-size: 12px;
  letter-spacing: .01em;
}
.status-badge--compact { border-radius: 7px; padding: 5px 8px; font-size: 10px; }
.status-badge--supported { border-color: #9dc2bb; background: #e2efec; color: #145b59; }
.status-badge--conditional { border-color: #d6bd88; background: #f3ead7; color: #725327; }
.status-badge--restricted { border-color: #d4aca1; background: #f1dfda; color: #7a4033; }
.status-badge--not-found, .status-badge--unknown, .status-badge--not-applicable { border-color: #c9d2cf; background: #e9edeb; color: #52666a; }
.limited-grid { gap: 18px; }
.limited-axis {
  border-color: var(--p2-line);
  border-radius: var(--p2-radius-md);
  padding: 32px;
  background: #e9efed;
}
.limited-axis__products > div { border-color: var(--p2-line); border-radius: 10px; box-shadow: 0 4px 12px rgba(16, 39, 45, .03); }
.legend { border-radius: 14px; padding: 22px 24px; background: var(--p2-surface); }

.compare-card {
  position: relative;
  overflow: hidden;
  border-color: var(--p2-line);
  border-radius: var(--p2-radius-md);
  padding: 25px;
  box-shadow: var(--p2-shadow-sm);
}
.compare-card::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 4px;
  background: var(--p2-accent);
  content: "";
}
.compare-card dl > div { border-color: var(--p2-line); padding: 14px 0; }

.navigator-layout { grid-template-columns: minmax(0, 1.45fr) minmax(290px, .55fr); gap: 28px; }
.navigator-card, .navigator-aside {
  border-color: var(--p2-line);
  border-radius: var(--p2-radius-md);
  box-shadow: var(--p2-shadow-sm);
}
.navigator-card { padding: 40px; }
.privacy-strip { margin-bottom: 42px; border-radius: 12px; padding: 20px; background: var(--p2-accent-soft); }
.privacy-strip > span { border-color: var(--p2-accent); color: var(--p2-accent); }
.navigator-card fieldset { margin-bottom: 42px; border-color: var(--p2-line); padding-top: 30px; }
.navigator-card legend { font-size: 18px; }
.navigator-card legend span { border-radius: 9px; background: var(--p2-ink); }
.choice { min-height: 106px; }
.choice > span {
  border-color: var(--p2-line-strong);
  border-radius: 12px;
  padding: 16px;
  background: #f7f9f8;
}
.choice input:checked + span { border-color: var(--p2-accent); background: #e4f0ee; box-shadow: inset 0 0 0 1px var(--p2-accent); }
.navigator-aside { top: 104px; padding: 32px; background: var(--p2-ink); }
.navigator-aside--underwear { background: var(--p2-ink-2); }
.result-product { border-color: var(--p2-line); border-radius: 13px; padding: 22px; box-shadow: 0 6px 18px rgba(16, 39, 45, .035); }

.product-hero {
  position: relative;
  padding: 86px 0;
  border-color: var(--p2-line);
  background: linear-gradient(110deg, rgba(255, 255, 255, .82), rgba(220, 235, 234, .48));
}
.product-hero__grid { gap: 70px; }
.product-hero h1 { margin: 14px 0 18px; font-size: clamp(42px, 5vw, 62px); line-height: 1.25; }
.verification-line { margin-top: 32px; gap: 9px; }
.verification-line span { border-color: var(--p2-line-strong); border-radius: 7px; padding: 6px 11px; background: rgba(255, 255, 255, .7); }
.product-hero .device-art {
  border: 1px solid #b9ccc8;
  border-radius: var(--p2-radius-lg);
  background: #d8e7e4;
  box-shadow: var(--p2-shadow-lg);
}
.product-layout { grid-template-columns: minmax(0, 1fr) 320px; gap: 30px; }
.content-card, .commerce-card {
  margin-bottom: 22px;
  border-color: var(--p2-line);
  border-radius: var(--p2-radius-md);
  padding: 34px;
  box-shadow: 0 8px 26px rgba(16, 39, 45, .045);
}
.content-card h2, .commerce-card h2 { font-size: 28px; }
.content-card--restriction { border-left: 5px solid var(--p2-danger); }
.scope-columns > div { border: 1px solid #dce4e1; border-radius: 12px; padding: 20px; background: #f3f6f5; }
.fact-list, .fact-list > div, .unknown-list li, details, .source-list li, .care-list li { border-color: var(--p2-line); }
.fact-list > div { padding: 20px 12px 20px 0; }
.restriction-list li { border-radius: 10px; padding: 17px; background: var(--p2-danger-soft); }
.commerce-card { top: 104px; border-top-color: var(--p2-accent); background: #e1ece9; }
.commerce-inactive { border-color: var(--p2-line); border-radius: 9px; background: rgba(255, 255, 255, .7); }
.source-id { color: var(--p2-steel); }

.editorial-floor { border-color: var(--p2-line); }
.editorial-article { padding-bottom: 112px; }
.editorial-article > .breadcrumbs { margin-top: 42px; }
.article-hero { width: min(calc(100% - 64px), 940px); padding: 84px 0 62px; }
.article-hero h1 { max-width: 920px; margin: 20px 0 30px; font-size: clamp(43px, 5.7vw, 68px); line-height: 1.27; }
.article-lead { max-width: 720px; color: #52686d; font-size: 18px; line-height: 1.95; }
.article-meta { margin-top: 32px; padding-top: 22px; border-color: var(--p2-line); color: var(--p2-steel); font-size: 12px; }
.key-takeaway {
  width: min(calc(100% - 64px), 940px);
  margin-bottom: 72px;
  border: 1px solid #b5cdca;
  border-radius: var(--p2-radius-md);
  padding: 38px 42px;
  background: #dcebe8;
  box-shadow: var(--p2-shadow-sm);
}
.key-takeaway h2 { font-size: 26px; }
.key-takeaway p:last-child { font-size: 18px; line-height: 1.85; }
.article-body { width: min(calc(100% - 64px), 840px); }
.article-section { grid-template-columns: 64px 1fr; gap: 28px; padding: 62px 0; border-color: var(--p2-line); }
.article-section__number { color: var(--p2-accent); font-family: ui-monospace, monospace; font-size: 15px; font-weight: 700; letter-spacing: .08em; }
.article-section h2 { margin-bottom: 18px; font-size: 32px; line-height: 1.4; }
.article-section p { font-size: 16px; line-height: 2; }
.concept-list { gap: 9px; margin-top: 22px; }
.concept-list li { border-color: var(--p2-line-strong); border-radius: 8px; padding: 7px 11px; background: var(--p2-surface); }
.article-limitation { border-color: #d8c497; border-radius: 14px; padding: 32px 34px; background: var(--p2-warning-soft); }
.article-sources, .related-guides { border-color: var(--p2-line); }
.article-sources li, .related-link { border-color: var(--p2-line); border-radius: 11px; background: var(--p2-surface); }
.article-sources li { padding: 22px; }
.related-link { padding: 20px; }
.related-link:hover { border-color: var(--p2-accent); background: #f7faf9; }

.trust-hero {
  position: relative;
  padding: 94px 0 76px;
  border-color: var(--p2-line);
  background: rgba(255, 255, 255, .7);
}
.trust-hero h1 { margin: 24px 0 20px; font-size: clamp(44px, 5.2vw, 66px); }
.trust-hero .page-lead { font-size: 17px; line-height: 1.9; }
.trust-layout { gap: 22px; }
.trust-card {
  border-color: var(--p2-line);
  border-radius: var(--p2-radius-md);
  padding: 38px;
  background: var(--p2-surface);
  box-shadow: var(--p2-shadow-sm);
}
.trust-card h2 { font-size: 28px; line-height: 1.45; }
.trust-card p { line-height: 1.95; }
.contact-state { border-left-color: var(--p2-accent); background: var(--p2-accent-soft); }

.site-footer {
  border-top: 0;
  padding: 68px 0 58px;
  background: #0c2228;
}
.site-footer::before {
  display: block;
  width: min(calc(100% - 64px), var(--shell));
  height: 1px;
  margin: 0 auto 50px;
  background: linear-gradient(90deg, #5ba09e 0 18%, rgba(255, 255, 255, .14) 18% 100%);
  content: "";
}
.phase1d-footer { gap: 64px; }
.phase1d-footer > div:first-child b { font-family: Georgia, "Times New Roman", serif; font-size: 18px; letter-spacing: .015em; }
.phase1d-footer nav { gap: 9px; }
.phase1d-footer nav b { margin-bottom: 10px; color: #96b4b2; font-size: 11px; letter-spacing: .12em; }
.phase1d-footer nav a { color: #d4dfdf; font-size: 12px; text-decoration-color: rgba(255, 255, 255, .28); }
.phase1d-footer nav a:hover { color: #fff; }
.phase1d-footer small { color: #8ea2a4; }
.site-footer p { color: #aabbbc; }

@media (max-width: 899px) {
  .shell { width: min(calc(100% - 44px), var(--shell)); }
  .section { padding: 82px 0; }
  .site-header__inner { min-height: 76px; }
  .site-header nav { gap: 2px; }
  .site-header nav a { padding-inline: 9px; font-size: 12px; }
  .hero { padding: 82px 0 92px; }
  .hero__grid, .page-hero__grid { grid-template-columns: 1fr; gap: 50px; }
  .hero-card { min-height: 470px; }
  .category-launch-card { min-height: 330px; }
  .filter-panel { grid-template-columns: 1fr; padding: 30px; }
  .comparison-desktop { display: none; }
  .comparison-mobile { display: grid; }
  .product-hero__grid { grid-template-columns: 1fr .52fr; }
  .navigator-layout, .product-layout { grid-template-columns: 1fr; }
  .navigator-aside, .commerce-card { position: static; }
  .article-hero, .key-takeaway { width: min(calc(100% - 44px), 940px); }
  .article-body, .editorial-article > .breadcrumbs { width: min(calc(100% - 44px), 840px); }
  .phase1d-footer { gap: 42px; }
}

@media (max-width: 599px) {
  html { font-size: 15px; line-height: 1.72; }
  .shell, .shell--wide { width: min(calc(100% - 32px), var(--shell)); }
  .section { padding: 64px 0; }
  .section--compact { padding: 44px 0; }
  .site-header__inner { min-height: 68px; }
  .brand { gap: 10px; }
  .brand__mark { width: 36px; height: 36px; border-radius: 10px; font-size: 16px; }
  .brand b { font-size: 12px; }
  .site-header nav .nav-cta { border-radius: 8px; padding-inline: 12px; }
  .eyebrow, .kicker { font-size: 10px; }
  .eyebrow::before { width: 16px; margin-right: 7px; }
  .hero {
    padding: 64px 0 72px;
    background: linear-gradient(165deg, rgba(255, 255, 255, .92) 0 62%, rgba(220, 235, 234, .48) 62% 100%);
  }
  .hero h1 { margin-bottom: 24px; font-size: clamp(42px, 12.5vw, 56px); line-height: 1.2; }
  .hero__lead { font-size: 15px; line-height: 1.9; }
  .button { min-height: 50px; border-radius: 9px; }
  .hero-card { min-height: 420px; border-radius: 22px; }
  .hero-card__content { right: 24px; bottom: 24px; left: 24px; }
  .category-launch-card { min-height: 0; border-radius: 20px; padding: 28px; }
  .category-launch-card h2 { font-size: 29px; }
  .principle { padding: 27px; }
  .principle > span { margin-bottom: 30px; }
  .guide-card { min-height: auto; border-radius: 15px; padding: 25px; }
  .guide-card h3 { font-size: 20px; }
  .page-hero, .trust-hero { padding: 58px 0 54px; }
  .page-hero h1, .trust-hero h1 { font-size: clamp(36px, 10vw, 46px); line-height: 1.3; }
  .breadcrumbs { margin-bottom: 36px; }
  .note-card, .action-card { padding: 25px; }
  .filter-panel { border-radius: 18px; padding: 25px 20px; }
  .filter-controls { gap: 8px; }
  .filter-chip span { min-height: 48px; border-radius: 8px; }
  .comparison-mobile { gap: 14px; }
  .compare-card { border-radius: 15px; padding: 23px 21px; }
  .limited-axis { border-radius: 15px; padding: 24px; }
  .legend { padding: 20px; }
  .navigator-card { border-radius: 15px; padding: 24px 20px; }
  .privacy-strip { padding: 18px 16px; }
  .choice > span { border-radius: 10px; }
  .product-hero { padding: 58px 0; }
  .product-hero h1 { font-size: 37px; }
  .product-hero__grid { grid-template-columns: 1fr; }
  .product-hero .device-art { width: min(100%, 340px); border-radius: 20px; transform: none; }
  .content-card, .commerce-card { border-radius: 15px; padding: 25px 22px; }
  .content-card h2, .commerce-card h2 { font-size: 25px; }
  .editorial-article { padding-bottom: 76px; }
  .article-hero, .key-takeaway, .article-body, .editorial-article > .breadcrumbs { width: min(calc(100% - 32px), 840px); }
  .article-hero { padding: 52px 0 42px; }
  .article-hero h1 { font-size: 38px; line-height: 1.34; }
  .article-lead { font-size: 16px; }
  .key-takeaway { margin-bottom: 40px; border-radius: 15px; padding: 27px 24px; }
  .article-section { grid-template-columns: 1fr; gap: 9px; padding: 44px 0; }
  .article-section h2 { font-size: 26px; }
  .article-section p { font-size: 15px; line-height: 1.95; }
  .article-limitation { padding: 26px 23px; }
  .article-sources li, .related-link { border-radius: 10px; }
  .trust-card { border-radius: 15px; padding: 27px 24px; }
  .site-footer { padding: 48px 0; }
  .site-footer::before { width: calc(100% - 32px); margin-bottom: 38px; }
  .phase1d-footer { gap: 32px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}