:root {
  color-scheme: light dark;
  --paper: #fffaf5;
  --surface: #ffffff;
  --surface-soft: #f4f0e8;
  --ink: #0c2e57;
  --muted: #53677a;
  --line: #d9e1e8;
  --accent: #ed075c;
  --accent-strong: #c90048;
  --accent-soft: #ffe7ef;
  --cyan: #0aa6c5;
  --yellow: #f7b900;
  --navy: #0d2f53;
  --shadow: rgb(13 47 83 / 12%);
  --radius-large: 30px;
  --radius-small: 18px;
  font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans CJK JP", "Yu Gothic Medium", "Yu Gothic", Meiryo, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
  background: var(--paper);
  line-break: strict;
  word-break: normal;
  overflow-wrap: anywhere;
  font-kerning: auto;
  text-autospace: normal;
}

body {
  min-width: 320px;
  min-height: 100dvh;
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-size: 1rem;
  line-height: 1.85;
  text-rendering: optimizeLegibility;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

h1,
h2,
h3,
p {
  overflow-wrap: break-word;
}

h1,
h2,
h3 {
  margin: 0;
  font-feature-settings: "palt" 1;
  letter-spacing: -0.035em;
  word-break: auto-phrase;
}

h1 {
  font-size: clamp(2.8rem, 5.2vw, 4.75rem);
  line-height: 1.16;
}

h2 {
  font-size: clamp(2.15rem, 4.1vw, 3.65rem);
  line-height: 1.3;
}

h3 {
  font-size: 1.25rem;
  line-height: 1.4;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 100;
  padding: 10px 16px;
  border-radius: 10px;
  color: #ffffff;
  background: #0c2e57;
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-150%);
}

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

:where(a, summary):focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 4px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.header-inner {
  width: min(1200px, calc(100% - 48px));
  height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.wordmark {
  flex: 0 0 auto;
  border-radius: 50%;
}

.wordmark img {
  width: 58px;
  height: 58px;
  border-radius: 50%;
}

.desktop-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(22px, 3vw, 42px);
  white-space: nowrap;
}

.desktop-nav a {
  position: relative;
  padding: 8px 0;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
}

.desktop-nav a::after {
  position: absolute;
  right: 0;
  bottom: 3px;
  left: 0;
  height: 2px;
  background: var(--accent);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 160ms ease;
}

.desktop-nav a:hover::after {
  transform: scaleX(1);
}

.mobile-nav {
  position: relative;
  display: none;
}

.mobile-nav summary {
  min-height: 42px;
  padding: 7px 14px;
  display: flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 12px;
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}

.mobile-nav summary::-webkit-details-marker {
  display: none;
}

.mobile-nav nav {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: min(278px, calc(100vw - 32px));
  padding: 10px;
  display: grid;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  background: var(--surface);
  box-shadow: 0 18px 50px var(--shadow);
}

.mobile-nav nav a {
  padding: 10px 12px;
  border-radius: 10px;
  font-weight: 700;
  text-decoration: none;
}

.mobile-nav nav a:hover {
  background: var(--accent-soft);
}

.hero {
  width: min(1280px, calc(100% - 48px));
  min-height: min(620px, calc(100dvh - 108px));
  margin: 32px auto 0;
  display: grid;
  grid-template-columns: minmax(390px, 0.68fr) minmax(0, 1.32fr);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-large);
  color: #0c2e57;
  background: #fff9f3;
  box-shadow: 0 26px 80px var(--shadow);
}

.hero-copy {
  padding: clamp(40px, 3.6vw, 48px);
  align-self: center;
}

.hero-label {
  margin: 0 0 20px;
  color: #a70643;
  font-size: 0.85rem;
  font-weight: 800;
}

.hero h1 {
  color: #0c2e57;
  font-size: clamp(2.35rem, 3.45vw, 3.1rem);
}

.hero-lead {
  max-width: 34em;
  margin: 24px 0 0;
  color: #53677a;
  font-size: 1.06rem;
  line-height: 1.9;
}

.hero-actions {
  margin-top: 30px;
  display: flex;
  align-items: center;
  gap: 26px;
}

.button {
  min-height: 54px;
  padding: 0 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  border-radius: 14px;
  font-weight: 800;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: transform 160ms ease, box-shadow 160ms ease, background-color 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: #ffffff;
  background: #c90048;
  box-shadow: 0 12px 28px rgb(201 0 72 / 22%);
}

.button-primary:hover {
  background: #ad003e;
  box-shadow: 0 16px 34px rgb(201 0 72 / 28%);
}

.hero-image {
  width: 100%;
  height: 100%;
  min-height: 560px;
  object-fit: cover;
  object-position: 68% center;
}

.age-band {
  width: min(1100px, calc(100% - 48px));
  margin: 0 auto;
  padding: 46px 0 34px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.age-band p {
  margin: 0;
  padding: 0 34px;
  display: grid;
  gap: 3px;
}

.age-band p + p {
  border-left: 1px solid var(--line);
}

.age-band strong {
  color: var(--accent-strong);
  font-size: 1.55rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.age-band span {
  color: var(--muted);
  font-size: 0.88rem;
}

.section {
  padding: clamp(88px, 10vw, 132px) 0;
}

.section-shell {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(300px, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(52px, 9vw, 120px);
  align-items: start;
}

.kicker {
  margin: 0 0 16px;
  color: var(--accent-strong);
  font-size: 0.84rem;
  font-weight: 800;
}

.about-copy p {
  max-width: 42em;
  margin: 0;
  color: var(--muted);
}

.about-copy .intro {
  margin-bottom: 24px;
  color: var(--ink);
  font-size: 1.24rem;
  font-weight: 700;
  line-height: 1.8;
}

.media-map {
  margin-top: 72px;
  padding: clamp(34px, 5vw, 58px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 3vw, 40px);
  border-radius: var(--radius-large);
  color: #ffffff;
  background: var(--navy);
}

.map-origin {
  max-width: 700px;
  display: grid;
  gap: 5px;
}

.map-origin span {
  color: #9de6f3;
  font-size: 0.82rem;
  font-weight: 700;
}

.map-origin strong {
  font-size: clamp(1.55rem, 2.6vw, 2rem);
  letter-spacing: -0.02em;
}

.map-origin p {
  margin: 8px 0 0;
  color: #c9d8e6;
  font-size: 0.98rem;
}

.media-map-visual {
  width: 100%;
  min-width: 0;
  padding: 14px 14px 10px;
  display: grid;
  gap: 7px;
  border-radius: var(--radius-small);
  color: #0c2e57;
  background: #ffffff;
  text-decoration: none;
}

.media-map-visual:focus-visible {
  outline-offset: 4px;
}

.media-map-image {
  width: 100%;
  height: auto;
  aspect-ratio: 1672 / 941;
  object-fit: contain;
}

.media-map-caption {
  justify-self: end;
  padding: 2px 3px;
  font-size: 0.78rem;
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.section-reach {
  background: var(--surface-soft);
}

.reach-layout {
  display: grid;
  grid-template-columns: minmax(300px, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(52px, 9vw, 120px);
  align-items: start;
}

.reach-intro {
  position: sticky;
  top: 116px;
}

.reach-intro p {
  max-width: 30em;
  margin: 22px 0 0;
  color: var(--muted);
}

.reach-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.reach-list li {
  padding: 31px 0;
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 22px;
  border-bottom: 1px solid var(--line);
}

.reach-number {
  color: var(--accent-strong);
  font-size: 0.85rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.reach-list h3 {
  margin-bottom: 8px;
}

.reach-list p {
  max-width: 36em;
  margin: 0;
  color: var(--muted);
}

.conversation-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(300px, 0.84fr);
  gap: clamp(42px, 8vw, 96px);
  align-items: center;
}

.conversation-media {
  position: relative;
  margin: 0;
}

.conversation-media::before {
  position: absolute;
  top: -20px;
  right: -20px;
  width: 98px;
  height: 98px;
  border-radius: 50%;
  background: var(--accent-soft);
  content: "";
}

.conversation-media img {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-large);
  object-fit: cover;
  box-shadow: 0 24px 70px var(--shadow);
}

.conversation-copy p {
  max-width: 34em;
  margin: 24px 0 0;
  color: var(--muted);
}

.conversation-tags {
  margin: 30px 0 0;
  padding: 0;
  display: flex;
  gap: 12px;
  list-style: none;
}

.conversation-tags li {
  min-width: 74px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--accent-strong);
  background: var(--surface);
  font-size: 0.85rem;
  font-weight: 800;
  text-align: center;
}

.section-safety {
  border-top: 1px solid var(--line);
}

.safety-grid {
  display: grid;
  grid-template-columns: minmax(300px, 0.84fr) minmax(0, 1.16fr);
  gap: clamp(52px, 9vw, 120px);
  align-items: start;
}

.safety-mark {
  width: 54px;
  height: 54px;
  margin-bottom: 24px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #ffffff;
  background: var(--cyan);
  font-size: 1.65rem;
  font-weight: 800;
}

.safety-heading p {
  max-width: 34em;
  margin: 22px 0 0;
  color: var(--muted);
}

.safety-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.safety-list li {
  padding: 28px 0;
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 20px;
  border-bottom: 1px solid var(--line);
}

.safety-list > li > span {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--accent-strong);
  background: var(--accent-soft);
  font-size: 0.86rem;
  font-weight: 800;
}

.safety-list h3 {
  margin-bottom: 7px;
}

.safety-list p {
  max-width: 36em;
  margin: 0;
  color: var(--muted);
}

.section-partners {
  color: #f8fbff;
  background: var(--navy);
}

.section-partners .kicker {
  color: #83dbea;
}

.partners-header {
  max-width: 700px;
}

.partner-columns {
  margin-top: 62px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid rgb(255 255 255 / 24%);
  border-bottom: 1px solid rgb(255 255 255 / 24%);
}

.partner-columns article {
  padding: 38px 42px 42px 0;
}

.partner-columns article + article {
  padding-right: 0;
  padding-left: 42px;
  border-left: 1px solid rgb(255 255 255 / 24%);
}

.partner-columns article > span {
  color: #83dbea;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.partner-columns h3 {
  margin-top: 8px;
  font-size: 1.55rem;
}

.partner-columns p {
  max-width: 38em;
  margin: 16px 0 0;
  color: #c9d8e6;
}

.consult-row {
  margin-top: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.consult-row p {
  margin: 0;
  color: #c9d8e6;
}

.button-light {
  color: #0c2e57;
  background: #ffffff;
  box-shadow: 0 14px 34px rgb(0 0 0 / 18%);
}

.button-light:hover {
  background: #fff0f5;
}

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

.footer-inner {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
  padding: 42px 0 34px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 34px;
  align-items: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 18px;
}

.footer-brand img {
  width: 64px;
  height: 64px;
  border-radius: 50%;
}

.footer-brand p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer nav {
  display: flex;
  gap: 24px;
  white-space: nowrap;
}

.site-footer nav a {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
  text-underline-offset: 4px;
}

.copyright {
  grid-column: 1 / -1;
  margin: 0;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.76rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #101c2b;
    --surface: #162638;
    --surface-soft: #1a2b3e;
    --ink: #eef4fa;
    --muted: #b9c7d5;
    --line: #314358;
    --accent: #ff4c84;
    --accent-strong: #ff6696;
    --accent-soft: rgb(255 76 132 / 16%);
    --cyan: #3bc2da;
    --yellow: #ffd257;
    --navy: #091a2b;
    --shadow: rgb(0 0 0 / 28%);
  }

  body {
    -webkit-font-smoothing: auto;
  }

  p,
  li,
  dd {
    line-height: 1.9;
  }

  .hero {
    border-color: #314358;
    background: #fff9f3;
  }

  .age-band strong,
  .kicker,
  .reach-number,
  .conversation-tags li,
  .safety-list > li > span {
    color: #ff77a3;
  }

  .media-map,
  .section-partners {
    background: #091a2b;
  }

  .wordmark img,
  .footer-brand img {
    background: #ffffff;
  }
}

@media (max-width: 900px) {
  .desktop-nav {
    display: none;
  }

  .mobile-nav {
    display: block;
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
  }

  .hero-copy {
    padding: 48px 42px 42px;
  }

  .hero-image {
    min-height: 420px;
    max-height: 520px;
    object-position: 68% center;
  }

  .about-grid,
  .reach-layout,
  .safety-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .reach-intro {
    position: static;
  }

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

  .conversation-copy {
    max-width: 620px;
  }
}

@media (max-width: 680px) {
  .header-inner,
  .section-shell,
  .footer-inner {
    width: min(100% - 32px, 620px);
  }

  .header-inner {
    height: 68px;
  }

  .wordmark img {
    width: 50px;
    height: 50px;
  }

  .hero {
    width: min(100% - 24px, 620px);
    margin-top: 12px;
    border-radius: var(--radius-small);
  }

  .hero-copy {
    padding: 42px 24px 38px;
  }

  .hero-label {
    margin-bottom: 16px;
    font-size: 0.78rem;
  }

  .hero h1 {
    max-width: none;
    font-size: clamp(1.9rem, 8.2vw, 2.5rem);
    line-height: 1.22;
  }

  .hero-lead {
    margin-top: 22px;
    font-size: 1rem;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
  }

  .hero-image {
    min-height: 270px;
    max-height: 340px;
  }

  .age-band {
    width: min(100% - 32px, 620px);
    padding: 30px 0 10px;
    grid-template-columns: 1fr;
  }

  .age-band p,
  .age-band p + p {
    padding: 18px 0;
    border-bottom: 1px solid var(--line);
    border-left: 0;
  }

  .section {
    padding: 76px 0;
  }

  h2 {
    font-size: clamp(1.95rem, 9vw, 2.7rem);
  }

  .media-map {
    margin-top: 48px;
    padding: 24px 16px 18px;
    gap: 24px;
    border-radius: var(--radius-small);
  }

  .media-map-visual {
    padding: 6px 6px 4px;
  }

  .reach-list li {
    grid-template-columns: 46px 1fr;
    gap: 14px;
  }

  .conversation-media::before {
    top: -12px;
    right: -8px;
    width: 62px;
    height: 62px;
  }

  .conversation-media img {
    border-radius: var(--radius-small);
  }

  .conversation-tags {
    flex-wrap: wrap;
  }

  .partner-columns {
    margin-top: 42px;
    grid-template-columns: 1fr;
  }

  .partner-columns article,
  .partner-columns article + article {
    padding: 28px 0;
    border-left: 0;
  }

  .partner-columns article + article {
    border-top: 1px solid rgb(255 255 255 / 24%);
  }

  .consult-row {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }

  .site-footer nav {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .copyright {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}