@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;600;700&display=swap');

:root {
  --ink: #1f2937;
  --muted: #5f6b7a;
  --line: #dce3e8;
  --paper: #f8f8f5;
  --white: #ffffff;
  --navy: #334b63;
  --navy-dark: #22374a;
  --blue-soft: #e9f1f5;
  --sage: #4f7469;
  --sand: #eee9dd;
  --shadow: 0 18px 48px rgba(31, 41, 55, 0.08);
  --radius: 22px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: 'Noto Sans JP', sans-serif;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
p { text-wrap: pretty; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; text-decoration-thickness: .08em; text-underline-offset: .2em; }
.nowrap { white-space: nowrap; }
button { font: inherit; }
:focus-visible { outline: 3px solid #0b5f82; outline-offset: 4px; }
.sr-only { 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 { position: fixed; top: -5rem; left: 1rem; z-index: 100; padding: .75rem 1rem; background: var(--navy-dark); color: white; }
.skip-link:focus { top: 1rem; }
.container { width: min(1120px, calc(100% - 40px)); margin-inline: auto; }
.narrow { width: min(760px, 100%); margin-inline: auto; }

.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.94); border-bottom: 1px solid rgba(220,227,232,.85); backdrop-filter: blur(12px); }
.header-inner { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-mark { width: 42px; height: 42px; }
.brand-type { width: 142px; height: auto; }
.nav { display: flex; align-items: center; gap: 24px; font-size: .92rem; font-weight: 500; }
.nav a:not(.button) { display: inline-flex; min-height: 44px; align-items: center; }
.nav a:not(.button):hover, .footer-links a:hover { color: var(--sage); text-decoration: underline; }
.nav a[aria-current='page'] { text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 6px; }
.nav-toggle { display: none; border: 1px solid var(--line); border-radius: 999px; background: white; padding: 9px 14px; color: var(--ink); }

.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 12px 22px; border-radius: 999px; font-weight: 700; line-height: 1.35; transition: transform .2s ease, background .2s ease, box-shadow .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: white; background: var(--navy); box-shadow: 0 8px 20px rgba(51,75,99,.18); }
.button-primary:hover { background: var(--navy-dark); }
.button-secondary { color: var(--navy-dark); background: var(--sand); }
.button-quiet { min-height: 40px; padding: 9px 16px; color: white; background: var(--navy); font-size: .85rem; }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

.hero { position: relative; overflow: hidden; padding: 68px 0 72px; background: linear-gradient(135deg, #f7f8f7 0%, #e9eff2 100%); }
.hero::before { content: ''; position: absolute; width: 420px; height: 420px; right: -170px; top: -190px; border-radius: 50%; border: 70px solid rgba(111,145,133,.11); }
.hero-grid { position: relative; display: grid; grid-template-columns: 1.12fr .88fr; align-items: center; gap: 52px; }
.eyebrow { display: inline-block; margin: 0 0 18px; color: var(--sage); font-size: .82rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; }
h1, h2, h3 { margin-top: 0; letter-spacing: -.025em; text-wrap: balance; }
h1 { margin-bottom: 22px; font-size: clamp(2.25rem, 4vw, 3.25rem); line-height: 1.28; letter-spacing: -.04em; }
h2 { margin-bottom: 16px; font-size: clamp(1.75rem, 3vw, 2.5rem); line-height: 1.36; }
h3 { line-height: 1.5; }
h3 { margin-bottom: 10px; font-size: 1.2rem; }
.lead { margin: 0; color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.25rem); }
.hero-art { padding: 20px; border-radius: 34% 66% 64% 36% / 45% 38% 62% 55%; background: rgba(255,255,255,.72); }
.hero-art img { max-height: 490px; margin-inline: auto; object-fit: contain; }
.status { display: flex; width: max-content; max-width: 100%; align-items: center; gap: 8px; margin-bottom: 14px; padding: 7px 13px; border: 1px solid #cad8de; border-radius: 999px; color: var(--navy); background: rgba(255,255,255,.7); font-size: .8rem; font-weight: 700; }
.status::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: var(--sage); }

.breadcrumb { padding: 18px 0; color: var(--muted); background: white; border-bottom: 1px solid var(--line); font-size: .82rem; }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 8px; margin-block: 0; margin-inline: auto; padding: 0; list-style: none; }
.breadcrumb li + li::before { content: '/'; margin-right: 8px; color: #9aa5ae; }
.breadcrumb a { text-decoration: underline; text-underline-offset: 3px; }

.section { padding: 80px 0; }
.section-white { background: white; }
.section-blue { background: var(--blue-soft); }
.section-sand { background: var(--sand); }
.section-heading { max-width: 720px; margin-bottom: 42px; }
.section-heading.center { margin-inline: auto; text-align: center; }
.section-heading p { margin-bottom: 0; color: var(--muted); font-size: 1.05rem; }
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card { padding: 30px; border: 1px solid var(--line); border-radius: var(--radius); background: white; box-shadow: 0 6px 22px rgba(31,41,55,.04); }
.card p { margin-bottom: 0; color: var(--muted); }
.card-link { transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease; }
.card-link:hover { transform: translateY(-4px); border-color: #b8c8d0; box-shadow: var(--shadow); }
.card-link .text-link { display: inline-block; margin-top: 18px; color: var(--navy); font-weight: 700; }
.card-kicker { margin: 0 0 12px; color: var(--sage) !important; font-size: .78rem; font-weight: 700; letter-spacing: .08em; }
.number { display: grid; width: 42px; height: 42px; margin-bottom: 20px; place-items: center; border-radius: 50%; color: white; background: var(--navy); font-weight: 700; }
.split { display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 64px; }
.split.reverse { grid-template-columns: 1.1fr .9fr; }
.split-image { padding: 24px; border-radius: 36px; background: rgba(255,255,255,.7); }
.split-image img { max-height: 520px; margin-inline: auto; object-fit: contain; }
.check-list, .plain-list { margin: 24px 0 0; padding: 0; list-style: none; }
.check-list li { position: relative; margin-top: 13px; padding-left: 30px; }
.check-list li::before { content: ''; position: absolute; left: 0; top: .72em; width: 10px; height: 10px; border: 3px solid var(--sage); border-radius: 50%; }
.plain-list li { padding: 14px 0; border-bottom: 1px solid var(--line); }
.plain-list li:first-child { border-top: 1px solid var(--line); }
.flow { counter-reset: flow; display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-block: 0; padding: 0; list-style: none; }
.flow-item { position: relative; padding: 30px; border: 1px solid var(--line); border-radius: var(--radius); background: white; box-shadow: 0 6px 22px rgba(31,41,55,.035); }
.flow-item::before { counter-increment: flow; content: '0' counter(flow); display: block; margin-bottom: 18px; color: var(--sage); font-size: 1.55rem; font-weight: 700; }
.flow-item p { margin-bottom: 0; color: var(--muted); }
.note { padding: 24px 26px; border-left: 4px solid var(--sage); border-radius: 0 16px 16px 0; background: white; }
.note strong { display: block; margin-bottom: 7px; }
.cta-panel { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 30px; padding: 44px; border-radius: 30px; color: white; background: var(--navy-dark); box-shadow: var(--shadow); }
.cta-panel h2 { margin-bottom: 8px; }
.cta-panel p { margin: 0; color: #dbe5eb; }
.cta-panel .button { background: white; color: var(--navy-dark); }
.article-card { display: flex; flex-direction: column; }
.article-card .article-meta { margin-top: auto; padding-top: 22px; color: var(--sage); font-size: .82rem; font-weight: 700; }
.empty-state { padding: 42px; border: 1px dashed #afbdc4; border-radius: var(--radius); text-align: center; background: rgba(255,255,255,.55); }
.empty-state p { color: var(--muted); }

.site-footer { padding: 56px 0 28px; color: white; background: #1f2f3d; }
.footer-grid { display: grid; grid-template-columns: 1fr auto; gap: 40px; align-items: start; }
.footer-brand { max-width: 440px; }
.footer-brand p { color: #b9c5cd; }
.footer-links { display: grid; grid-template-columns: repeat(2, auto); gap: 4px 28px; font-size: .9rem; }
.footer-links a { display: inline-flex; min-height: 44px; align-items: center; }
.copyright { margin-top: 40px; padding-top: 24px; border-top: 1px solid #40515e; color: #96a7b2; font-size: .78rem; }

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

@media (forced-colors: active) {
  :focus-visible { outline-color: Highlight; }
  .button, .card, .flow-item, .note, .status { border: 1px solid CanvasText; }
}

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .nav { display: none; position: absolute; top: 78px; left: 0; right: 0; padding: 24px 20px; flex-direction: column; align-items: stretch; gap: 16px; border-bottom: 1px solid var(--line); background: white; box-shadow: var(--shadow); }
  .nav[data-open='true'] { display: flex; }
  .nav .button { width: 100%; }
  .hero-grid, .split, .split.reverse { grid-template-columns: 1fr; gap: 34px; }
  .hero-copy { order: 1; }
  .hero-art { order: 2; max-width: 620px; margin-inline: auto; }
  .grid-3, .flow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cta-panel { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .container { width: min(100% - 28px, 1120px); }
  .brand-type { width: 116px; }
  .hero { padding: 44px 0 50px; }
  .hero-grid { gap: 28px; }
  .hero-art { padding: 10px; }
  .hero-art img { max-height: 250px; }
  h1 { font-size: clamp(2rem, 9vw, 2.2rem); line-height: 1.25; }
  h2 { line-height: 1.32; }
  .section { padding: 56px 0; }
  .section-heading { margin-bottom: 30px; }
  .grid-2, .grid-3, .flow, .footer-grid { grid-template-columns: 1fr; }
  .grid, .flow { gap: 14px; }
  .card, .flow-item { padding: 22px; }
  .compact-media .split-image { display: none; }
  .note { padding: 20px 21px; }
  .button-row { flex-direction: column; }
  .button-row .button { width: 100%; }
  .cta-panel { padding: 30px 24px; }
  .footer-links { grid-template-columns: 1fr; }
}