:root {
  --navy: #041c2a;
  --ink: #14283b;
  --muted: #405b6a;
  --accent: #9bd7e3;
  --line: #d8e3e7;
  --paper: #f5f7f7;
  font: 16px/1.65 Inter, "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", Meiryo, sans-serif;
  color: var(--ink);
  background: var(--paper);
}
*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; -webkit-font-smoothing: antialiased; }
[hidden] { display: none !important; }
a { color: inherit; }
a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 3px solid #4b9fb4;
  outline-offset: 4px;
}
.skip { position: absolute; top: -100px; z-index: 5; background: white; color: var(--ink); padding: 10px; }
.skip:focus { top: 8px; left: 8px; }
.preview { color: #dceef2; text-align: center; background: #102f40; font-size: .75rem; padding: 5px 12px; }
.header, footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 22px;
  padding: 16px clamp(18px, 5vw, 70px);
  background: var(--navy);
  color: white;
}
.header { position: sticky; z-index: 3; top: 0; }
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  white-space: nowrap;
  text-decoration: none;
  color: #fff;
}
.brand-mark { width: 48px; flex: none; }
.brand-words { display: flex; flex-direction: column; gap: 2px; }
.brand-words strong { font-weight: 650; letter-spacing: -.045em; font-size: 22px; line-height: 1; }
.brand-words .amp { font-weight: 400; }
.brand-words small { letter-spacing: .47em; font-size: 8.5px; margin-left: 2px; font-weight: 700; }
.footer-brand {
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  width: 280px;
  max-width: 100%;
  flex-shrink: 0;
  text-decoration: none;
}
.footer-brand svg { flex: none; }
.footer-brand strong { font-size: 21px; letter-spacing: -.04em; white-space: nowrap; }
.footer-brand strong span { font-weight: 300; }
.footer-brand small { font-size: 9px; letter-spacing: .4em; margin-left: 64px; flex-basis: 100%; margin-top: -5px; }
.desktop, footer nav { display: flex; gap: clamp(19px, 4vw, 58px); flex-wrap: wrap; }
.desktop a, footer nav a, .mobile a { text-decoration: none; font-size: .83rem; font-weight: 650; }
.desktop a[aria-current], .mobile a[aria-current], .desktop a:hover, footer nav a:hover { color: var(--accent); }
.header-end, .language { display: flex; align-items: center; gap: 8px; }
.language a { padding: 5px 9px; line-height: 1.5; font-size: .78rem; text-decoration: none; }
.language a[aria-current] { background: var(--accent); color: var(--navy); }
.mobile { display: none; }
.shell { width: min( calc(100% - 2 * clamp(20px, 7vw, 112px)), 1230px); margin-inline: auto; }
.hero { color: white; background-color: var(--navy); background-position: center; background-size: cover; }
.home-photo { background-image: linear-gradient(90deg, rgba(4,28,42,.9), rgba(4,28,42,.54) 60%, rgba(4,28,42,.18)), url('tokyo.webp'); }
.partner-photo { background-image: linear-gradient(90deg, rgba(4,28,42,.94), rgba(4,28,42,.65) 60%, rgba(4,28,42,.2)), url('partnership.webp'); }
.hero > .shell { padding-block: clamp(80px, 12vw, 164px); }
.compact > .shell { padding-block: clamp(48px, 8vw, 104px); }
.eyebrow { margin: 0 0 20px; color: #28647d; letter-spacing: .15em; font-size: .75rem; font-weight: 750; }
.hero .eyebrow { color: var(--accent); }
h1, h2, h3 { margin: 0; line-height: 1.04; text-wrap: balance; }
h1 { margin-bottom: 24px; font-size: clamp(2.55rem, 8vw, 7.1rem); letter-spacing: -.065em; }
.partner-photo h1, .compact h1 { font-size: clamp(2.45rem, 7vw, 6.1rem); }
h1 em { color: var(--accent); font-style: normal; }
h2 { font-size: clamp(1.75rem, 4vw, 3.8rem); letter-spacing: -.045em; }
h3 { font-size: clamp(1.22rem, 2.6vw, 1.65rem); letter-spacing: -.02em; }
[lang=ja] h1, [lang=ja] h2, [lang=ja] h3 { letter-spacing: -.025em; line-height: 1.22; }
p { margin: 0 0 1.1em; }
.lead { max-width: 560px; color: #f0f7f9; font-size: clamp(1rem, 2vw, 1.25rem); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.actions:empty { display: none; }
.hero .actions { margin-top: 30px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 48px;
  max-width: 100%;
  padding: 11px 19px;
  border: 1px solid var(--navy);
  background: var(--navy);
  color: white;
  font: inherit;
  font-size: .88rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}
.button:hover { background: #245268; }
.hero .button { border-color: white; background: white; color: var(--navy); }
.hero .button:hover { background: var(--accent); border-color: var(--accent); }
.hero .outline { background: #041c2a70; color: white; }
.hero .outline:hover { color: var(--navy); }
.button.secondary { background: white; color: var(--navy); }
.status { background: #e2f1f3; border-bottom: 1px solid #d4e7ea; }
.status .shell { padding-block: 18px; }
.status strong { margin-right: .3em; }
.section { padding-block: clamp(42px, 7vw, 105px); }
.section p { color: var(--muted); }
.split, .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(24px, 7vw, 95px); align-items: start; }
.tinted { background: #e5eef0; }
.text-link { color: #24566e; font-weight: 700; text-underline-offset: 5px; }
.cards { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 32px; }
.cards article, .form-card { background: white; border: 1px solid var(--line); padding: clamp(20px, 4vw, 42px); min-width: 0; }
.cards p { margin: 15px 0 0; }
.form-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1.7fr); }
aside h2 { margin-bottom: 17px; }
.demo-note { padding: 13px 16px; background: #e2f1f3; color: #193c4d; border-left: 3px solid #467e93; }
.form-card h3 { margin-bottom: 24px; }
.field { margin-bottom: 18px; }
.field label:not(.check) { display: block; margin-bottom: 6px; font-weight: 700; }
.field small { margin-left: 5px; font-weight: 400; color: var(--muted); }
.field :is(input:not([type=checkbox]), select, textarea) { display: block; width: 100%; border: 1px solid #8ba2ac; background: #f8fafb; color: var(--ink); font: inherit; padding: 10px 12px; border-radius: 0; }
.field textarea { resize: vertical; }
.check { display: flex; gap: 10px; align-items: baseline; }
.check input { flex: none; width: 17px; height: 17px; margin: 0; accent-color: var(--navy); }
.privacy { background: var(--paper); padding: 12px 14px; margin-bottom: 16px; }
.privacy summary, .mobile summary { cursor: pointer; font-weight: 650; }
.privacy p { margin: 8px 0 0; font-size: .9rem; }
.error { display: block; color: #a11c2d; font-size: .85rem; font-weight: 600; }
.error:empty { display: none; }
.field [aria-invalid=true] { border-color: #a11c2d; }
dl { margin: 0 0 24px; }
dl div { padding-block: 10px; border-bottom: 1px solid var(--line); }
dt { font-weight: 700; }
dd { margin: 4px 0 0; white-space: pre-wrap; overflow-wrap: anywhere; }
footer {
  padding-block: 30px;
  background: #051520;
  color: #b6c9d3;
  align-items: flex-start;
}
@media (max-width: 1100px) {
  .brand-words strong { font-size: 19px; }
}
@media (max-width: 750px) {
  .brand-mark { width: 42px; }
  .brand-words strong { font-size: 18px; }
  .brand-words small { font-size: 7px; }
}
@media (max-width: 720px) {
  .desktop { display: none; }
  .mobile { display: block; font-size: .78rem; }
  .mobile summary { padding-block: 6px; }
  .mobile nav { position: absolute; top: 100%; inset-inline: 0; background: var(--navy); display: grid; padding: 12px 20px; gap: 10px; }
  .mobile a { padding: 6px 0; }
  .header { gap: 8px; padding-inline: 13px; }
  .language { gap: 2px; }
  .language a { padding-inline: 7px; }
  .split, .form-grid, .cards { grid-template-columns: 1fr; }
  .hero { background-position: 57% center; }
  footer { flex-direction: column; align-items: flex-start; }
}
.experience-photo { background-image: linear-gradient(90deg, #041c2af0, #041c2a99 65%, #041c2a38), url('tokyo-waterfront.webp'); }
.product-photo { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: contain; background: #f5f7f7; margin-bottom: 18px; }
.quantity { display: flex; gap: 12px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.quantity input { font: inherit; width: 80px; padding: 6px 8px; border: 1px solid #8ba2ac; }
.quotes > .actions { margin-top: 24px; }
figure { margin: 0; }
figcaption { color: var(--muted); font-size: .85rem; }
.split h2 + p { margin-top: 18px; }
.split .button + p { margin-top: 16px; }
.policy { max-width: 850px; }
.policy section + section { margin-top: 34px; }
.policy h2 { font-size: clamp(1.35rem, 3vw, 2rem); margin-bottom: .55em; }
@media (min-width: 1021px) {
  .desktop { gap: clamp(15px, 2.15vw, 34px); }
}
@media (min-width: 721px) and (max-width: 1020px) {
  .desktop { display: none; }
  .mobile { display: block; font-size: .85rem; }
  .mobile nav { position: absolute; right: 0; top: 100%; background: var(--navy); display: grid; padding: 16px 28px; gap: 12px; }
}

@media (max-width: 360px) {
  .header { padding-inline: 10px; gap: 5px; }
  .header-end { gap: 5px; }
  .language a { padding-inline: 5px; }
}