:root {
  color-scheme: light;
  --ink: #1c1b1a;
  --muted: #6f6a66;
  --line: #e9e2dc;
  --paper: #fffaf6;
  --card: #ffffff;
  --orange: #ff5a18;
  --amber: #ffad0a;
  --max: 1080px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif; line-height: 1.75; line-break: strict; }
a { color: inherit; text-underline-offset: .2em; }
.wrap { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
.skip { position: fixed; left: 12px; top: -80px; z-index: 10; padding: 8px 14px; background: var(--ink); color: white; }
.skip:focus { top: 12px; }

.nav { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border-bottom: 1px solid var(--line); }
.nav nav, .footer nav { display: flex; flex-wrap: wrap; gap: 22px; }
.nav nav a, .footer a { color: var(--muted); text-decoration: none; font-size: .88rem; font-weight: 650; }
.nav nav a:hover, .nav nav a[aria-current="page"], .footer a:hover { color: var(--orange); }
.brand { text-decoration: none; font-weight: 800; letter-spacing: -.03em; }
.brand span { display: inline-block; color: var(--orange); font-size: 1.35rem; font-style: italic; letter-spacing: -.08em; transform: skew(-8deg); }

.hero { min-height: 690px; display: grid; grid-template-columns: 1.15fr .85fr; align-items: center; gap: 80px; padding-block: 80px; }
.eyebrow { margin: 0 0 14px; color: var(--orange); font-size: .75rem; font-weight: 850; letter-spacing: .16em; }
h1, h2, h3, summary { line-height: 1.25; letter-spacing: -.035em; text-wrap: balance; }
p { text-wrap: pretty; }
h1 { margin: 0; font-size: clamp(2.65rem, 6vw, 5rem); }
h1 em { color: var(--orange); font-style: normal; }
:lang(ja) .hero h1 { font-size: clamp(2rem, 8vw, 4.2rem); }
.hero-line { display: block; white-space: nowrap; }
h2 { margin: 0 0 28px; font-size: clamp(2rem, 4vw, 3.2rem); }
h3 { margin: 10px 0; font-size: 1.3rem; }
.lead { max-width: 690px; margin: 28px 0; color: var(--muted); font-size: 1.08rem; }
.lead.compact { margin-top: 20px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 0 22px; border-radius: 999px; text-decoration: none; font-weight: 750; transition: transform .18s ease, box-shadow .18s ease; }
.button:hover { transform: translateY(-2px); }
.primary { color: white; background: linear-gradient(125deg, var(--amber), var(--orange)); box-shadow: 0 10px 24px #ff5a1833; }
.secondary { border: 1px solid var(--line); background: white; }
.note, .updated { color: var(--muted); font-size: .82rem; }

.phone { width: min(100%, 340px); justify-self: center; padding: 16px 20px 26px; border: 8px solid var(--ink); border-radius: 46px; background: white; box-shadow: 0 30px 80px #5e2a101c; transform: rotate(2deg); }
.phone-top { width: 84px; height: 20px; margin: -7px auto 20px; border-radius: 0 0 16px 16px; background: var(--ink); }
.phone-title { font-weight: 800; font-size: 1.3rem; }
.metric { padding: 18px; border: 1px solid var(--line); border-radius: 18px; background: #fffaf6; }
.metric span, .metric small { display: block; color: var(--muted); font-size: .72rem; }
.metric strong { display: inline-block; margin: 5px 6px 0 0; font-size: 2.25rem; line-height: 1; }
.chart { height: 150px; display: flex; align-items: end; gap: 9px; margin: 18px 0; padding: 16px; border-radius: 18px; background: linear-gradient(180deg, #fff7ef, white); }
.chart i { flex: 1; min-height: 22%; border-radius: 8px 8px 3px 3px; background: linear-gradient(var(--amber), var(--orange)); }
.chart i:nth-child(2) { height: 45%; }.chart i:nth-child(3) { height: 34%; }.chart i:nth-child(4) { height: 70%; }.chart i:nth-child(5) { height: 58%; }.chart i:nth-child(6) { height: 88%; }.chart i:nth-child(7) { height: 72%; }
.mini-grid { display: grid; grid-template-columns: 1fr auto; gap: 10px; color: var(--muted); font-size: .8rem; }.mini-grid b { color: var(--ink); }

.section { padding-block: 110px; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.cards article { padding: 28px; border: 1px solid var(--line); border-radius: 24px; background: var(--card); box-shadow: 0 10px 30px #4f250d0a; }
.cards p, .split p { color: var(--muted); }
.number { color: var(--orange); font-size: .75rem; font-weight: 850; letter-spacing: .12em; }
.band { background: var(--ink); color: white; }
.band .eyebrow { color: var(--amber); }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; }
.split p { margin-top: 0; color: #d5d0cb; }
.cta { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding-block: 100px; }
.cta h2 { margin: 0; }

.document { max-width: 780px; padding-block: 80px 110px; }
.document h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
.document h2 { margin: 52px 0 12px; padding-top: 8px; border-top: 1px solid var(--line); font-size: 1.35rem; }
.document p, .document li { color: #4f4a46; }
.document a { color: #c83f08; }
.faq { margin-top: 56px; border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); padding: 22px 0; }
summary { cursor: pointer; font-weight: 750; }
details p { margin-bottom: 0; }
.support-box { margin-top: 56px; padding: 28px; border-radius: 22px; background: white; border: 1px solid var(--line); }
.support-box h2 { margin-top: 0; border: 0; }

.footer { min-height: 110px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border-top: 1px solid var(--line); color: var(--muted); font-size: .82rem; }

@media (max-width: 760px) {
  .nav { padding-block: 18px; align-items: flex-start; flex-direction: column; gap: 10px; }
  .nav nav { width: 100%; justify-content: flex-start; gap: 10px 18px; }
  .hero { grid-template-columns: 1fr; gap: 60px; padding-block: 64px 90px; }
  .phone { width: 310px; }
  .cards, .split { grid-template-columns: 1fr; }
  .section { padding-block: 76px; }
  .cta, .footer { align-items: flex-start; flex-direction: column; padding-block: 62px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}