:root {
  --ink: #171717;
  --navy: #172033;
  --muted: #666057;
  --line: rgba(23,23,23,.15);
  --paper: #fffdf8;
  --wash: #eee9df;
  --orange: #ad321f;
  --orange-dark: #842417;
  --blue: #2355a6;
  --green: #17785b;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background-color: #f5f0e6;
  background-image: radial-gradient(circle at 18% 12%,rgba(70,56,39,.035) 0 1px,transparent 1.5px),radial-gradient(circle at 76% 68%,rgba(70,56,39,.025) 0 1px,transparent 1.5px);
  background-size: 23px 19px,31px 29px;
  font-family: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.8;
}
a { color: inherit; }
img { max-width: 100%; }
.container { width: min(1120px, calc(100% - 40px)); margin-inline: auto; }
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(255,253,248,.96); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); box-shadow: 0 3px 18px rgba(23,23,23,.05); }
.header-inner { min-height: 80px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; text-decoration: none; }
.brand-logo { display: block; width: 150px; height: 68px; object-fit: contain; mix-blend-mode: multiply; }
.nav { display: flex; align-items: center; gap: 22px; font-size: .88rem; font-weight: 700; }
.nav a { text-decoration: none; }
.nav a:hover { color: var(--orange); }
.nav .contact { padding: 10px 18px; border-radius: 2px; background: var(--orange); color: white; }
.hero { position: relative; overflow: hidden; padding: 96px 0 84px; background: rgba(255,253,248,.82); border-bottom: 1px solid var(--line); }
.hero::before { content:""; position:absolute; left:-4%; bottom:0; width:48%; height:18px; opacity:.78; background:var(--ink); clip-path:polygon(0 55%,16% 12%,40% 42%,68% 0,100% 45%,88% 77%,52% 64%,18% 100%,2% 78%); }
.hero-inner { position: relative; display: grid; grid-template-columns: 1.15fr .85fr; align-items: center; gap: 56px; }
.eyebrow { display: inline-block; margin-bottom: 18px; color: var(--orange); font-size: .78rem; font-weight: 800; letter-spacing:.08em; }
h1,h2 { font-family:"Noto Serif JP","Yu Mincho",serif; }
h1 { margin: 0 0 22px; font-size: clamp(2.25rem,5vw,4.25rem); line-height: 1.28; letter-spacing: .01em; }
.hero-title-two-lines { font-size: clamp(2.1rem,4.2vw,3.5rem); }
.hero-title-line { display: block; white-space: nowrap; }
h2 { margin: 0 0 20px; font-size: clamp(1.7rem,3vw,2.55rem); line-height: 1.4; letter-spacing: .01em; }
h3 { margin: 0 0 10px; font-size: 1.18rem; line-height: 1.5; }
p { margin: 0 0 16px; }
.lead { max-width: 720px; color: #455267; font-size: 1.08rem; }
.accent { color: var(--orange); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button { display: inline-flex; justify-content: center; align-items: center; min-height: 52px; padding: 12px 23px; border-radius: 2px; text-decoration: none; font-weight: 800; letter-spacing:.03em; }
.button-primary { background: var(--orange); color: #fff; box-shadow: none; }
.button-primary:hover { background: var(--orange-dark); }
.button-secondary { background: #fff; border: 1px solid #cfd6df; }
.hero-card { padding: 30px; border: 1px solid var(--line); border-radius: 3px; background: rgba(255,253,248,.9); box-shadow: 16px 18px 0 rgba(23,32,51,.07); }
.hero-card strong { display: block; margin-bottom: 12px; font-size: 1.25rem; }
.check-list { margin: 0; padding: 0; list-style: none; }
.check-list li { position: relative; padding: 10px 0 10px 30px; border-bottom: 1px solid #edf0f4; }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 900; }
.section { padding: 82px 0; background:var(--paper); }
.section-wash { background: var(--wash); }
.section-dark { color: white; background: var(--ink); }
.section-intro { max-width: 760px; margin: 0 auto 42px; text-align: center; }
.kicker { color: var(--orange); font-size: .75rem; font-weight: 900; letter-spacing: .16em; text-transform: uppercase; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.card { padding: 28px; border: 1px solid var(--line); border-radius: 3px; background: var(--paper); box-shadow: 0 10px 30px rgba(23,23,23,.045); }
.card p { color: var(--muted); font-size: .94rem; }
.notice { margin-top: 24px; padding: 22px 24px; border-left: 4px solid var(--orange); background: var(--wash); }
.notice strong { display: block; margin-bottom: 8px; }
.notice p { margin: 0; color: var(--muted); font-size: .88rem; }
.number { display: inline-grid; width: 42px; height: 42px; margin-bottom: 16px; place-items: center; border-radius: 50%; color: white; background: var(--orange); font-weight: 900; }
.proof { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; margin-top: 36px; }
.proof div { padding: 20px 12px; border-radius: 3px; background: var(--paper); border: 1px solid var(--line); text-align: center; }
.proof strong { display: block; font-size: 1.25rem; }
.proof span { color: var(--muted); font-size: .75rem; }
.case { padding: 30px; border-left: 5px solid var(--orange); border-radius: 0 3px 3px 0; background: var(--paper); box-shadow: 0 10px 35px rgba(23,32,51,.07); }
.case .tag { color: var(--orange-dark); font-size: .75rem; font-weight: 900; }
.flow { counter-reset: steps; display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
.flow article { position: relative; padding: 24px; border-radius: 3px; background: var(--paper); border: 1px solid var(--line); }
.flow article::before { counter-increment: steps; content: counter(steps); display: grid; width: 34px; height: 34px; margin-bottom: 14px; place-items: center; border-radius: 50%; background: var(--navy); color: white; font-weight: 900; }
.faq { max-width: 840px; margin: auto; }
.faq details { margin-bottom: 12px; padding: 20px 22px; border: 1px solid var(--line); border-radius: 3px; background: var(--paper); }
.faq summary { cursor: pointer; font-weight: 800; }
.faq details p { margin: 14px 0 0; color: var(--muted); }
.cta { padding: 64px 0; color: white; background: var(--navy); text-align: center; }
.cta p { color: #d9e0ea; }
.breadcrumbs { padding: 16px 0; color: var(--muted); font-size: .8rem; }
.breadcrumbs a { text-decoration: none; }
.site-footer { position:relative; overflow:hidden; padding: 44px 0; color: #aeb8c7; background: #101827; font-size: .85rem; }
.footer-brand { width:220px; height:112px; object-fit:contain; filter:invert(1) grayscale(1) brightness(2.2); mix-blend-mode:screen; }
.site-footer::after { content:""; position:absolute; right:-45px; bottom:-90px; width:280px; height:280px; opacity:.06; border-radius:50%; background:url('/suita-sogyo-round-seal-reversed-logo-v10.png') center/contain no-repeat; mix-blend-mode:screen; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 34px; }
.site-footer a { color: #dce3ec; text-decoration: none; }
.site-footer ul { margin: 10px 0 0; padding: 0; list-style: none; }
.site-footer li { margin: 8px 0; }

@media (max-width: 860px) {
  .nav a:not(.contact) { display: none; }
  .header-inner { min-height:64px; }
  .brand-logo { width:115px; height:54px; }
  .hero { padding-top: 62px; }
  .hero-inner, .grid-3, .grid-2, .flow, .footer-grid { grid-template-columns: 1fr; }
  .hero-card { margin-top: 4px; }
  .proof { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 520px) {
  .container { width: min(100% - 28px,1120px); }
  .nav .contact { padding: 9px 13px; font-size: .76rem; }
  .section { padding: 64px 0; }
  .actions { flex-direction: column; }
  .button { width: 100%; }
}