:root {
  --ink: #24302f;
  --muted: #5d6968;
  --paper: #fffdf9;
  --surface: #ffffff;
  --soft: #f5f7f2;
  --line: #dedfd8;
  --blue: #315d78;
  --green: #3f6b56;
  --accent: #b75f3a;
  --gold: #b78a45;
  --shadow: 0 12px 34px rgba(25, 38, 36, .10);
  --maxw: 1120px;
  --radius: 8px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif; color: var(--ink); background: var(--paper); line-height: 1.85; }
body.theme-souzoku { --primary: var(--blue); --soft: #f3f7fa; --tint: #e7f0f5; }
body.theme-jikka { --primary: var(--green); --soft: #f4f6ee; --tint: #e8f1e9; }
img { max-width: 100%; display: block; }
a { color: var(--primary); text-underline-offset: 3px; }
.wrap { width: min(100% - 36px, var(--maxw)); margin-inline: auto; }
.narrow { max-width: 820px; }
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(255,253,249,.94); border-bottom: 1px solid var(--line); backdrop-filter: blur(10px); }
.nav { min-height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); }
.brand-mark { width: 42px; height: 42px; border-radius: 8px; display: grid; place-items: center; color: #fff; background: var(--primary); font-weight: 800; }
.brand b { display: block; line-height: 1.2; font-size: 1rem; }
.brand small { display: block; color: var(--muted); font-size: .76rem; margin-top: 2px; }
.menu { display: flex; align-items: center; gap: 16px; font-size: .92rem; font-weight: 800; }
.menu a { color: var(--ink); text-decoration: none; }
.menu-cta { background: var(--primary); color: #fff !important; padding: 8px 14px; border-radius: 999px; }
.nav-toggle { display: none; border: 0; background: transparent; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; margin: 5px 0; background: var(--ink); }
.hero { padding: 72px 0 54px; background: linear-gradient(180deg, var(--soft), #fffdf9); }
.hero-grid, .split, .media-split { display: grid; grid-template-columns: 1.08fr .92fr; gap: 42px; align-items: center; }
.kicker, .eyebrow { margin: 0 0 14px; color: var(--accent); font-weight: 800; font-size: .78rem; letter-spacing: 0; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(2rem, 5vw, 3.8rem); line-height: 1.24; letter-spacing: 0; color: var(--primary); margin-bottom: 20px; }
h2 { font-size: clamp(1.5rem, 3.2vw, 2.35rem); line-height: 1.42; letter-spacing: 0; color: var(--primary); margin-bottom: 14px; }
h3 { font-size: 1.14rem; line-height: 1.46; letter-spacing: 0; margin-bottom: 8px; }
.lead { font-size: 1.08rem; color: var(--muted); max-width: 670px; }
.hero-actions, .cta-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 11px 18px; border-radius: 999px; border: 1px solid transparent; text-decoration: none; font-weight: 800; line-height: 1.35; cursor: pointer; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 10px 28px rgba(49,93,120,.22); }
.btn-secondary { background: #fff; color: var(--primary); border-color: var(--primary); }
.btn-line { background: #06c755; color: #fff; }
.btn-quiet { background: transparent; color: var(--primary); border-color: var(--line); }
.btn-large { min-width: 220px; }
.assure, .small-note { color: var(--muted); font-size: .92rem; margin-top: 18px; }
.hero-photo, .photo-card { margin: 0; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.hero-photo img { aspect-ratio: 4/3; object-fit: cover; width: 100%; }
figcaption { padding: 12px 14px; font-size: .84rem; color: var(--muted); background: #fff; }
.section { padding: 72px 0; }
.section-muted { background: var(--soft); }
.section-soft { background: linear-gradient(180deg, #fff, var(--soft)); }
.section-dark { background: #223534; color: #fff; }
.section-dark h2, .section-dark .eyebrow { color: #fff; }
.section-dark p { color: rgba(255,255,255,.82); }
.section-head { max-width: 760px; margin-bottom: 30px; }
.center { text-align: center; margin-inline: auto; }
.intro-actions { padding: 26px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #fff; }
.four-links { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.four-links a { padding: 18px; border: 1px solid var(--line); border-radius: var(--radius); text-decoration: none; background: #fff; color: var(--ink); }
.four-links b, .four-links span { display: block; }
.four-links span { color: var(--muted); font-size: .9rem; margin-top: 3px; }
.compare-grid, .card-grid, .step-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.compare-grid { grid-template-columns: repeat(2, 1fr); }
.card, .compare-card, .step, .contact-panel, .mail-form, .result-panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: 0 8px 24px rgba(32,39,37,.06); }
.compare-card.is-active { border-color: color-mix(in srgb, var(--primary), #fff 30%); background: linear-gradient(180deg, #fff, var(--tint)); }
.tag, .meta { display: inline-flex; margin-bottom: 12px; padding: 3px 10px; border-radius: 999px; background: var(--tint); color: var(--primary); font-size: .78rem; font-weight: 800; }
.card p, .step p, .article-body p { color: var(--muted); }
.card a, .text-link { font-weight: 800; }
.compact { min-height: 190px; }
.step b { display: block; color: var(--gold); font-size: 2rem; line-height: 1; margin-bottom: 14px; }
.diagnosis-band { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #fff; }
.media-split { grid-template-columns: .55fr 1fr; }
.photo-card img { aspect-ratio: 4/5; object-fit: cover; width: 100%; }
.flow-list { list-style: none; counter-reset: flow; padding: 0; margin: 0; display: grid; gap: 12px; }
.flow-list li { counter-increment: flow; position: relative; padding: 18px 18px 18px 66px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; font-weight: 800; }
.flow-list li::before { content: counter(flow); position: absolute; left: 18px; top: 18px; width: 32px; height: 32px; display: grid; place-items: center; background: var(--primary); color: #fff; border-radius: 50%; }
.flow-list.large li p { margin: 6px 0 0; font-weight: 400; color: var(--muted); }
.faq-list { display: grid; gap: 10px; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 0 18px; }
.faq-item summary { cursor: pointer; font-weight: 800; padding: 16px 0; }
.faq-item p { margin-bottom: 18px; color: var(--muted); }
.center-link { margin-top: 26px; text-align: center; }
.page-hero { padding: 58px 0 40px; background: linear-gradient(180deg, var(--soft), #fffdf9); border-bottom: 1px solid var(--line); }
.article-body h2 { margin-top: 34px; font-size: 1.55rem; }
.article-body p { font-size: 1.02rem; }
.check-bullets { padding: 0; list-style: none; display: grid; gap: 10px; }
.check-bullets li { padding: 12px 14px; border-left: 4px solid var(--primary); background: var(--soft); border-radius: 0 var(--radius) var(--radius) 0; }
.article-cta { margin-top: 42px; padding: 26px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--soft); }
.info-illustration { margin: 34px 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; box-shadow: 0 10px 30px rgba(32,39,37,.07); }
.info-illustration svg { width: 100%; height: auto; display: block; }
.info-illustration figcaption { border-top: 1px solid var(--line); }
.info-table { margin: 24px 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; }
.info-table div { display: grid; grid-template-columns: minmax(150px, .42fr) 1fr; border-top: 1px solid var(--line); }
.info-table div:first-child { border-top: 0; }
.info-table b, .info-table span { padding: 14px 16px; }
.info-table b { background: var(--tint); color: var(--primary); }
.note-box { margin: 28px 0; padding: 22px; border-left: 5px solid var(--accent); background: #fff; border-radius: 0 var(--radius) var(--radius) 0; box-shadow: 0 8px 22px rgba(32,39,37,.05); }
.note-box h3 { color: var(--primary); }
.faq-support { margin-top: 42px; padding-top: 28px; border-top: 1px solid var(--line); }
.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tags span { display: inline-flex; padding: 3px 9px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: .82rem; }
.diagnosis fieldset { border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; margin: 0 0 18px; background: #fff; }
.diagnosis legend { font-weight: 800; color: var(--primary); padding: 0 8px; }
.diagnosis legend span { margin-right: 8px; color: var(--accent); }
.choice-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-top: 14px; }
.choice-grid label { display: block; cursor: pointer; }
.choice-grid input { position: absolute; opacity: 0; }
.choice-grid span { display: block; padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.choice-grid input:checked + span { border-color: var(--primary); background: var(--tint); font-weight: 800; }
.result-panel { margin-top: 28px; background: var(--tint); }
.mail-form label { display: grid; gap: 6px; margin-bottom: 14px; font-weight: 800; }
.mail-form input, .mail-form textarea, .mail-form select { width: 100%; border: 1px solid var(--line); border-radius: var(--radius); padding: 11px 12px; font: inherit; background: #fff; }
.visible { background: var(--soft); }
.site-footer { padding: 46px 0 18px; color: #fff; background: #1f2f30; }
.footer-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 30px; }
.site-footer a { display: block; color: #fff; text-decoration: none; margin: 7px 0; }
.footer-heading { margin: 0 0 10px; color: rgba(255,255,255,.72); font-weight: 800; }
.footer-bottom { margin-top: 28px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.16); display: flex; justify-content: space-between; gap: 12px; color: rgba(255,255,255,.72); font-size: .88rem; }
.sticky-cta { display: none; }
@media (max-width: 900px) {
  .menu { display: none; position: absolute; inset: 68px 18px auto 18px; padding: 14px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); flex-direction: column; align-items: stretch; }
  .menu.is-open { display: flex; }
  .nav-toggle { display: block; }
  .hero-grid, .split, .media-split, .compare-grid, .card-grid, .step-grid, .footer-grid { grid-template-columns: 1fr; }
  .four-links { grid-template-columns: repeat(2, 1fr); }
  .hero { padding-top: 48px; }
  .sticky-cta { position: fixed; left: 14px; right: 14px; bottom: 12px; z-index: 30; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
  .sticky-cta a { min-height: 44px; border-radius: 999px; display: grid; place-items: center; text-decoration: none; font-weight: 800; color: #fff; background: #06c755; box-shadow: var(--shadow); }
  .sticky-cta a + a { background: var(--primary); }
  body { padding-bottom: 64px; }
}
@media (max-width: 560px) {
  .wrap { width: min(100% - 28px, var(--maxw)); }
  .hero-actions, .cta-actions { flex-direction: column; }
  .btn { width: 100%; }
  .four-links, .choice-grid { grid-template-columns: 1fr; }
  .card, .compare-card, .step, .contact-panel, .mail-form { padding: 20px; }
  .info-table div { grid-template-columns: 1fr; }
  .info-table b { padding-bottom: 6px; }
  .info-table span { padding-top: 6px; }
  .footer-bottom { flex-direction: column; }
}