:root {
  color-scheme: light;
  --ink: #0b1730;
  --ink-2: #152746;
  --muted: #53627a;
  --line: #d9e1ec;
  --line-strong: #b8c7da;
  --soft: #f3f6fa;
  --blue: #2f62e9;
  --blue-dark: #1748c9;
  --blue-pale: #eaf0ff;
  --white: #ffffff;
  --green: #137d55;
  --amber: #9a6010;
  --red: #b5364a;
  --radius: 14px;
  --max: 1200px;
  --shadow: 0 16px 38px rgba(0, 0, 0, 0.13);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: "Avenir Next", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  overflow-wrap: anywhere;
  text-rendering: optimizeLegibility;
}

::selection { background: #b9cbff; color: var(--ink); }
:focus-visible { outline: 3px solid #7da0ff; outline-offset: 4px; }
html { scrollbar-color: #9fb1cc #eef2f7; scrollbar-width: thin; }
::-webkit-scrollbar { width: 11px; }
::-webkit-scrollbar-track { background: #eef2f7; }
::-webkit-scrollbar-thumb { border: 3px solid #eef2f7; border-radius: 99px; background: #9fb1cc; }

a { color: inherit; text-decoration: none; }
button, select { font: inherit; }
button, a, select { -webkit-tap-highlight-color: transparent; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3, .brand-word { font-family: "MiSans", "Avenir Next", "Noto Sans SC", "PingFang SC", sans-serif; }

.sr-only,
.skip-link:not(:focus) {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.skip-link:focus {
  position: fixed;
  z-index: 100;
  inset-block-start: 16px;
  inset-inline-start: 16px;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 30;
  min-height: 74px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
  padding: 12px max(24px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid rgba(11, 23, 48, 0.1);
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 900; white-space: nowrap; }
.brand img { display: block; border-radius: 12px; }
.brand-mark { position: relative; display: inline-flex; width: 40px; height: 40px; flex: 0 0 40px; align-items: center; justify-content: center; border-radius: 12px; background: #020617; color: #fff; box-shadow: 0 10px 15px -3px rgba(59, 130, 246, .1); }
.brand-letter { font-size: 18px; font-weight: 900; line-height: 1; letter-spacing: -.025em; }
.brand-signal-ring { position: absolute; top: 8px; right: 6px; width: 12px; height: 12px; border: 3px solid #3b82f6; border-bottom-color: transparent; border-left-color: transparent; border-radius: 999px; }
.brand-signal-dot { position: absolute; top: 16px; right: 10px; width: 8px; height: 8px; border-radius: 999px; background: #93c5fd; }
.brand-word { font-size: 23px; line-height: 1; letter-spacing: -0.03em; }
.site-header .brand-word {
  font-family: inherit;
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -0.025em;
}
.site-header .brand-word span { color: #2563eb; }
.brand-word span { color: var(--blue); }
.primary-nav { display: flex; justify-content: center; gap: clamp(16px, 2.2vw, 30px); color: #344159; font-size: 13px; font-weight: 800; }
.primary-nav a, .text-action { text-underline-offset: 5px; }
.primary-nav a:hover, .text-action:hover { color: var(--blue); text-decoration: underline; }
.header-actions { display: flex; align-items: center; gap: 14px; font-size: 13px; font-weight: 800; }
.header-auth { display: inline-flex; align-items: center; gap: 14px; }
.header-session-action { display: inline-flex; align-items: center; gap: 7px; }
.header-session-action svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.header-session-action:first-child svg { fill: currentColor; stroke: none; }
.logout-action { padding: 0; border: 0; background: transparent; color: #53627a; cursor: pointer; }
.language-control {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding-inline: 10px 7px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--white);
}
.language-control svg { width: 17px; height: 17px; fill: none; stroke: var(--ink); stroke-width: 1.35; }
.language-control select { max-width: 92px; border: 0; background: transparent; color: var(--ink); font-size: 12px; font-weight: 800; cursor: pointer; }
.language-control select:focus { outline: 0; }
.nav-toggle { display: none; }

.announcement-strip { border-bottom: 1px solid #c7d5f7; background: var(--blue-pale); }
.announcement-inner { width: min(calc(100% - 48px), var(--max)); min-height: 44px; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 14px; align-items: center; margin-inline: auto; color: #283b62; font-size: 12px; }
.announcement-inner p { margin: 0; }
.announcement-tag { color: var(--blue-dark); font-weight: 900; }
.announcement-inner a { color: var(--blue-dark); font-weight: 900; text-underline-offset: 4px; }
.announcement-inner a:hover { text-decoration: underline; }

.button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 0 24px;
  border: 0;
  border-radius: 12px;
  background: var(--blue);
  color: var(--white);
  font-weight: 900;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
  transition: background-color 180ms ease-out, transform 180ms ease-out, box-shadow 180ms ease-out;
}
.button:hover { background: var(--blue-dark); transform: translateY(-2px); box-shadow: 0 14px 28px rgba(0, 0, 0, 0.21); }
.button:active { transform: translateY(0); }
.button-small { min-height: 42px; padding-inline: 17px; border-radius: 10px; }
.inline-icon { width: 16px; height: 16px; margin-inline-start: 7px; vertical-align: -3px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

.section-shell { width: min(calc(100% - 48px), var(--max)); margin-inline: auto; }
.hero {
  min-height: calc(100vh - 74px);
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(500px, 1.1fr);
  gap: clamp(46px, 6vw, 88px);
  align-items: center;
  padding-block: 66px 76px;
}
.hero-copy { min-width: 0; }
h1 { max-width: 720px; margin-bottom: 24px; font-size: clamp(3.2rem, 5.2vw, 5rem); line-height: 1.01; letter-spacing: -0.04em; }
h1 em { display: block; color: var(--blue); font-style: normal; }
.hero-lede { max-width: 680px; margin-bottom: 30px; color: var(--muted); font-size: clamp(1rem, 1.35vw, 1.17rem); line-height: 1.82; }
.hero-actions { display: flex; align-items: center; gap: 22px; margin-bottom: 28px; }
.hero-primary-cta {
  width: calc(100% + 24px);
  min-height: 62px;
  padding-inline: 32px;
  font-size: 18px;
  letter-spacing: .01em;
  box-shadow: 0 0 0 5px rgba(37, 99, 235, .09), 0 16px 32px rgba(37, 99, 235, .3);
}
.hero-primary-cta:hover {
  box-shadow: 0 0 0 5px rgba(37, 99, 235, .13), 0 20px 38px rgba(37, 99, 235, .34);
}
.experience-note { display: flex; flex-wrap: wrap; gap: 5px 9px; align-items: baseline; max-width: 680px; margin: 16px 0 0; color: var(--muted); }
.experience-note b { color: var(--ink); font-size: 12px; }
.experience-note small { font-size: 12px; line-height: 1.45; }
.quiet-link { color: #253754; font-size: 14px; font-weight: 900; text-underline-offset: 5px; }
.quiet-link:hover { color: var(--blue); text-decoration: underline; }
.capability-list { display: flex; flex-wrap: wrap; gap: 9px; margin: 0; padding: 0; list-style: none; }
.capability-list li { padding: 7px 11px; border: 1px solid var(--line); border-radius: 999px; color: #36445a; background: var(--white); font-size: 12px; font-weight: 900; }

.role-overview { position: relative; min-width: 0; padding: 30px; border: 1px solid var(--line-strong); border-radius: var(--radius); background: #fbfdff; }
.role-overview::before { content: ""; position: absolute; inset: 11px -11px -11px 11px; z-index: -1; border: 1px solid #c8d5f7; border-radius: var(--radius); background: var(--blue-pale); }
.role-overview-heading { padding-bottom: 24px; border-bottom: 1px solid var(--ink); }
.role-overview-heading h2 { margin-bottom: 8px; font-size: clamp(1.8rem, 3vw, 2.65rem); line-height: 1.08; letter-spacing: -.035em; }
.role-overview-heading p { margin: 0; color: var(--muted); font-size: 13px; }
.role-overview-list a { display: block; padding: 22px 0; border-bottom: 1px solid var(--line); }
.role-overview-list a:hover h3 { color: var(--blue-dark); }
.role-overview-list h3 { margin-bottom: 3px; font-size: 19px; }
.role-overview-list p { margin: 0; color: var(--muted); font-size: 13px; }

.service-band { display: grid; grid-template-columns: 170px minmax(0, 1fr); gap: 34px; align-items: start; padding: 24px max(24px, calc((100vw - var(--max)) / 2)); border-block: 1px solid var(--line); background: var(--soft); }
.service-band p { margin: 0; padding-top: 2px; color: #5b687d; font-size: 12px; font-weight: 900; }
.service-names { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 13px 28px; color: #5d687b; font-size: 12px; font-weight: 900; }
.service-names span { min-width: 0; white-space: nowrap; }

.campaign-area { position: relative; margin-top: 46px; padding-top: 24px; border-top: 1px solid var(--ink); }
.campaign-heading { display: flex; align-items: end; justify-content: space-between; gap: 32px; margin-bottom: 16px; }
.campaign-heading h2 { margin: 0; font-size: clamp(1.65rem, 2.5vw, 2.35rem); line-height: 1.08; letter-spacing: -.03em; }
.campaign-heading p { max-width: 580px; margin: 0; color: var(--muted); font-size: 13px; text-align: end; }
.campaign-viewport { min-height: 154px; overflow: hidden; border: 1px solid #c8d5f7; border-radius: var(--radius); background: #eef3ff; }
.campaign-track { min-height: 152px; display: flex; transform: translateX(calc(var(--campaign-index, 0) * -100%)); transition: transform 260ms ease-out; }
.campaign-track:empty::before { content: ""; flex: 0 0 100%; min-height: 152px; }
.campaign-slot { flex: 0 0 100%; min-height: 152px; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 36px; align-items: center; min-width: 0; padding: 25px 28px; background: linear-gradient(105deg, #f5f8ff 0%, #eaf0ff 100%); }
.campaign-slot.has-image { grid-template-columns: minmax(180px, 260px) minmax(0, 1fr) auto; }
.campaign-media { display: block; width: 100%; max-height: 118px; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 10px; background: #dfe7f6; }
.campaign-copy h3 { margin-bottom: 3px; font-size: 22px; letter-spacing: -.02em; }
.campaign-copy p { margin: 0; color: var(--muted); font-size: 13px; }
.campaign-badge { display: inline-block; margin-top: 9px; color: var(--blue-dark); font-size: 12px; font-weight: 900; }
.campaign-controls { display: flex; justify-content: flex-end; align-items: center; gap: 7px; margin-top: 9px; }
.campaign-controls > span { margin-inline-end: 4px; color: var(--muted); font-size: 12px; font-weight: 900; }
.campaign-controls button { width: 44px; height: 44px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 9px; background: var(--white); color: var(--ink); cursor: pointer; }
.campaign-controls button:hover { border-color: var(--blue); color: var(--blue); }
.campaign-controls svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.campaign-controls[hidden] { display: none; }

.capabilities, .solutions, .platform-foundation, .project-directory, .rules, .faq-section { padding-block: 116px; }
.section-heading { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 56px; align-items: end; margin-bottom: 50px; }
.platform-heading h2 { grid-column: 1 / -1; max-width: 900px; }
.section-heading h2, .workflow-copy h2, .japan-copy h2, .closing-section h2 { margin-bottom: 0; font-size: clamp(2.25rem, 4vw, 4.3rem); line-height: 1.05; letter-spacing: -0.04em; }
.section-heading p { max-width: 560px; margin-bottom: 4px; color: var(--muted); }
.capability-ledger { border-top: 1px solid var(--ink); }
.capability-ledger article { display: grid; grid-template-columns: 52px minmax(0, 1fr) auto; gap: 25px; align-items: center; padding: 27px 0; border-bottom: 1px solid var(--line); }
.ledger-mark { color: var(--blue); font-size: 12px; font-weight: 900; }
.capability-ledger h3 { margin-bottom: 4px; font-size: 20px; }
.capability-ledger p { max-width: 720px; margin-bottom: 0; color: var(--muted); }
.ledger-meta { color: #647188; font-size: 12px; font-weight: 900; letter-spacing: 0.04em; white-space: nowrap; }

.workflow-section { padding-block: 110px; background: var(--ink); color: var(--white); }
.workflow-inner { display: grid; grid-template-columns: 0.82fr 1.18fr; gap: clamp(50px, 8vw, 110px); }
.workflow-copy p { max-width: 520px; margin-block: 26px 24px; color: #bec9da; }
.light-link { color: #cdd9ff; font-size: 14px; font-weight: 900; text-underline-offset: 5px; }
.light-link:hover { color: var(--white); text-decoration: underline; }
.workflow-list { margin: 0; padding: 0; border-top: 1px solid rgba(255,255,255,.36); list-style: none; }
.workflow-list li { display: grid; grid-template-columns: 46px minmax(0, 1fr); gap: 18px; align-items: start; padding: 23px 0; border-bottom: 1px solid rgba(255,255,255,.16); }
.workflow-list > li > span { width: 28px; height: 28px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.42); border-radius: 50%; color: #a9c0ff; font-size: 12px; font-weight: 900; }
.workflow-list h3 { margin-bottom: 3px; font-size: 19px; }
.workflow-list p { margin-bottom: 0; color: #bac5d7; }

.solution-rows { border-top: 1px solid var(--ink); }
.solution-row { display: grid; grid-template-columns: minmax(230px, .75fr) minmax(0, 1.35fr) auto; gap: 30px; align-items: center; padding: 30px 0; border-bottom: 1px solid var(--line); transition: color 180ms ease-out, transform 180ms ease-out; }
.solution-row:hover { color: var(--blue-dark); transform: translateX(7px); }
.solution-title span { display: block; margin-bottom: 5px; color: var(--blue); font-size: 12px; font-weight: 900; letter-spacing: 0.04em; }
.solution-title h3 { margin-bottom: 0; font-size: 22px; }
.solution-row p { margin-bottom: 0; color: var(--muted); }
.solution-action { font-size: 12px; font-weight: 900; white-space: nowrap; }

.api-section { padding-block: 110px; background: var(--soft); border-block: 1px solid var(--line); }
.api-inner { display: grid; grid-template-columns: minmax(0, .8fr) minmax(520px, 1.2fr); gap: clamp(48px, 8vw, 110px); align-items: start; }
.api-copy h2 { margin-bottom: 22px; font-size: clamp(2.25rem, 4vw, 4.3rem); line-height: 1.05; letter-spacing: -.04em; }
.api-copy p { max-width: 530px; margin-bottom: 27px; color: var(--muted); }
.api-cards { border-top: 1px solid var(--ink); }
.api-cards article { display: grid; grid-template-columns: 168px minmax(0, .7fr) minmax(0, 1fr); gap: 22px; align-items: start; padding: 24px 0; border-bottom: 1px solid var(--line); }
.api-cards code { color: var(--blue-dark); font-size: 12px; font-weight: 900; }
.api-cards h3 { margin: 0; font-size: 18px; }
.api-cards p { margin: 0; color: var(--muted); font-size: 14px; }
.platform-foundation { padding-bottom: 104px; }
.foundation-ledger { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--ink); border-inline-start: 1px solid var(--line); }
.foundation-ledger article { min-width: 0; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 24px; align-items: end; padding: 26px; border-inline-end: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.foundation-ledger h3 { margin-bottom: 7px; font-size: 19px; }
.foundation-ledger p { max-width: 580px; margin: 0; color: var(--muted); }
.foundation-ledger article > span { color: var(--blue-dark); font-size: 12px; font-weight: 900; letter-spacing: .03em; white-space: nowrap; }
.project-directory { padding-bottom: 90px; }
.compact-heading { margin-bottom: 36px; }
.project-groups { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--ink); border-inline-start: 1px solid var(--line); }
.project-groups > section { min-width: 0; padding: 25px; border-inline-end: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.project-groups h3 { margin-bottom: 15px; font-size: 16px; }
.project-links { display: flex; flex-wrap: wrap; gap: 7px 13px; }
.project-links a { color: var(--muted); font-size: 12px; font-weight: 800; text-decoration: underline; text-decoration-color: #c7d2e2; text-underline-offset: 4px; }
.project-links a:hover { color: var(--blue-dark); text-decoration-color: currentColor; }

.japan-section { padding-block: 110px; background: var(--blue); color: var(--white); }
.japan-inner { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: clamp(48px, 8vw, 105px); align-items: center; }
.japan-copy p { max-width: 560px; margin-block: 25px 28px; color: #edf2ff; }
.button-inverse { background: var(--white); color: var(--blue-dark); box-shadow: 0 10px 24px rgba(0, 0, 0, .2); }
.button-inverse:hover { background: var(--ink); color: var(--white); }
.japan-directory { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid rgba(255,255,255,.45); border-inline-start: 1px solid rgba(255,255,255,.28); }
.japan-directory span { min-width: 0; padding: 17px 14px; border-inline-end: 1px solid rgba(255,255,255,.28); border-bottom: 1px solid rgba(255,255,255,.28); font-size: 12px; font-weight: 900; }

.rule-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--ink); border-inline-start: 1px solid var(--line); }
.rule-grid article { min-width: 0; padding: 27px; border-inline-end: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.rule-grid h3 { margin-bottom: 10px; font-size: 19px; }
.rule-grid p { margin: 0; color: var(--muted); }

.faq-section { padding-top: 20px; }
.faq-list { border-top: 1px solid var(--ink); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 24px 54px 24px 0; font-size: 18px; font-weight: 900; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; inset-block-start: 18px; inset-inline-end: 5px; color: var(--blue); font-size: 26px; font-weight: 500; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { max-width: 830px; padding: 0 70px 25px 0; margin: 0; color: var(--muted); }

.closing-section { display: flex; align-items: center; justify-content: space-between; gap: 44px; margin-bottom: 90px; padding: 50px; border-radius: var(--radius); background: var(--ink); color: var(--white); box-shadow: 0 22px 42px rgba(0, 0, 0, .18); }
.closing-section h2 { max-width: 760px; }
.closing-section p { max-width: 720px; margin: 16px 0 0; color: #c9d3e3; }
.closing-section .button { flex: 0 0 auto; }
.closing-primary-cta {
  min-width: 300px;
  min-height: 64px;
  padding-inline: 44px;
  font-size: 18px;
  background: var(--blue);
  color: var(--white);
  box-shadow: 0 16px 32px rgba(37, 99, 235, .34);
}
.closing-primary-cta:hover {
  background: var(--blue-dark);
  color: var(--white);
  box-shadow: 0 20px 38px rgba(37, 99, 235, .4);
}

.site-footer { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 30px; align-items: center; padding-block: 30px 46px; border-top: 1px solid var(--line); color: #66738a; font-size: 12px; }
.site-footer nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 24px; }
.site-footer nav a:hover { color: var(--blue); text-decoration: underline; text-underline-offset: 4px; }
.site-footer p { margin: 0; text-align: end; }
.footer-brand .brand-word { font-size: 18px; }

@media (max-width: 1080px) {
  .site-header { grid-template-columns: auto auto 1fr; gap: 14px; }
  .nav-toggle { order: 3; display: grid; place-content: center; gap: 6px; width: 44px; height: 44px; margin-inline-start: auto; border: 1px solid var(--line); border-radius: 10px; background: var(--white); cursor: pointer; }
  .nav-toggle span:not(.sr-only) { width: 18px; height: 2px; display: block; background: var(--ink); }
  .primary-nav { position: absolute; inset-block-start: 100%; inset-inline: 16px; display: none; padding: 14px; border: 1px solid var(--line); border-radius: 12px; background: var(--white); }
  .primary-nav.open { display: grid; justify-content: stretch; gap: 0; }
  .primary-nav a { padding: 12px; }
  .header-actions { order: 2; justify-self: end; }
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .role-overview { max-width: 760px; }
  .service-band { grid-template-columns: 140px minmax(0, 1fr); gap: 24px; }
  .service-names { grid-template-columns: repeat(3, minmax(0, 1fr)); gap-inline: 22px; }
  .section-heading { grid-template-columns: 1fr; gap: 18px; }
  .workflow-inner, .japan-inner, .api-inner { grid-template-columns: 1fr; }
  .solution-row { grid-template-columns: minmax(210px, .7fr) minmax(0, 1.3fr); }
  .solution-action { grid-column: 2; }
}

@media (max-width: 760px) {
  .site-header { min-height: 66px; padding: 10px 16px; }
  .brand img { width: 36px; height: 36px; }
  .brand-mark { width: 36px; height: 36px; flex-basis: 36px; }
  .brand-word { font-size: 19px; }
  .text-action { display: none; }
  .language-control { min-height: 44px; padding-inline: 8px 5px; }
  .language-control svg { display: none; }
  .language-control select { max-width: 76px; }
  .header-actions .button { display: none; }
  .section-shell { width: min(calc(100% - 32px), var(--max)); }
  .hero { gap: 50px; padding-block: 54px 70px; }
  h1 { font-size: clamp(2.35rem, 10vw, 3.2rem); line-height: 1.04; }
  .hero-lede { line-height: 1.75; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .hero-primary-cta { width: 100%; min-height: 62px; font-size: 17px; }
  .quiet-link { padding: 8px 0; }
  .role-overview { padding: 22px; }
  .role-overview::before { inset: 8px -7px -8px 7px; }
  .service-band { grid-template-columns: 1fr; gap: 12px; padding-inline: 16px; }
  .service-names { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 18px; }
  .campaign-area { margin-top: 28px; }
  .campaign-heading { align-items: start; flex-direction: column; gap: 7px; }
  .campaign-heading p { text-align: start; }
  .campaign-viewport { min-height: 282px; }
  .campaign-track, .campaign-track:empty::before, .campaign-slot { min-height: 280px; }
  .campaign-slot { grid-template-columns: 1fr; gap: 18px; padding: 22px; }
  .campaign-slot.has-image { grid-template-columns: 1fr; }
  .campaign-media { max-height: 128px; }
  .campaign-slot .button { width: 100%; }
  .announcement-inner { width: calc(100% - 32px); grid-template-columns: auto minmax(0, 1fr); padding-block: 9px; }
  .announcement-inner a { grid-column: 2; }
  .capabilities, .solutions, .platform-foundation, .project-directory, .rules, .faq-section { padding-block: 82px; }
  .section-heading { margin-bottom: 34px; }
  .section-heading h2, .workflow-copy h2, .japan-copy h2 { font-size: clamp(2.35rem, 11vw, 3.2rem); }
  .capability-ledger article { grid-template-columns: 34px minmax(0, 1fr); align-items: start; }
  .ledger-meta { grid-column: 2; white-space: normal; }
  .workflow-section, .japan-section, .api-section { padding-block: 82px; }
  .api-cards article { grid-template-columns: 1fr; gap: 7px; }
  .foundation-ledger { grid-template-columns: 1fr; }
  .foundation-ledger article { grid-template-columns: 1fr; gap: 10px; }
  .solution-row { grid-template-columns: 1fr; gap: 12px; align-items: start; }
  .solution-action { grid-column: auto; }
  .japan-directory { grid-template-columns: repeat(2, 1fr); }
  .rule-grid { grid-template-columns: 1fr; }
  .project-groups { grid-template-columns: 1fr; }
  .faq-section { padding-top: 12px; }
  .faq-list summary { font-size: 16px; }
  .faq-list details p { padding-inline-end: 20px; }
  .closing-section { width: calc(100% - 32px); align-items: flex-start; flex-direction: column; margin-bottom: 64px; padding: 32px 24px; }
  .closing-section .button { width: 100%; }
  .closing-primary-cta { min-width: 0; min-height: 60px; }
  .site-footer { grid-template-columns: 1fr; gap: 18px; padding-inline: 16px; }
  .site-footer nav { justify-content: flex-start; }
  .site-footer p { text-align: start; }
}

@media (max-width: 340px) {
  .site-header { gap: 8px; padding-inline: 12px; }
  .brand { gap: 6px; }
  .brand-word { font-size: 17px; }
  .language-control select { max-width: 58px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}