:root {
  --brand: #22a9cf;
  --brand-strong: #147f9d;
  --teal: #3b9eaa;
  --sky: #eaf8fc;
  --sky-strong: #d7f1f8;
  --coral: #ff806f;
  --ink: #17333b;
  --muted: #58727a;
  --line: #d8e8ec;
  --white: #ffffff;
  --shadow: 0 20px 55px rgba(25, 108, 129, .12);
  --radius: 24px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "YuGothic", "Noto Sans JP", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
p { margin: 0 0 1rem; }
h1, h2, h3 { margin: 0; line-height: 1.35; letter-spacing: .02em; }
h2 { font-size: clamp(1.8rem, 3.2vw, 2.6rem); margin-bottom: 1.5rem; }
h3 { font-size: 1.25rem; }

.container { width: min(1120px, calc(100% - 40px)); margin-inline: auto; }
.narrow { width: min(840px, calc(100% - 40px)); }
.section { padding: clamp(72px, 9vw, 120px) 0; }
.section-tint { background: linear-gradient(180deg, #f5fbfd 0%, #ebf8fb 100%); }
.eyebrow {
  margin-bottom: .75rem;
  color: var(--brand-strong);
  font-weight: 800;
  font-size: .78rem;
  letter-spacing: .17em;
}
.eyebrow.light { color: #bceefa; }
.lead { color: var(--ink); font-size: clamp(1.08rem, 2vw, 1.3rem); font-weight: 700; line-height: 1.75; }
.fine-print { margin-top: 1.25rem; color: var(--muted); font-size: .875rem; line-height: 1.8; }

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 1000;
  padding: .65rem 1rem;
  background: var(--ink);
  color: white;
  border-radius: 8px;
  transform: translateY(-140%);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .94);
  border-bottom: 1px solid rgba(216, 232, 236, .9);
  backdrop-filter: blur(12px);
}
.header-inner {
  width: min(1180px, calc(100% - 36px));
  min-height: 78px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 2rem;
}
.brand { flex: 0 0 auto; }
.brand img { width: min(310px, 35vw); }
.desktop-nav { display: flex; align-items: center; gap: 1.5rem; margin-left: auto; }
.desktop-nav a { color: #3b5961; text-decoration: none; font-size: .92rem; font-weight: 700; }
.desktop-nav a:hover, .desktop-nav a:focus-visible { color: var(--brand-strong); }

.button {
  min-height: 54px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .8rem 1.55rem;
  color: white;
  background: linear-gradient(135deg, var(--brand) 0%, var(--teal) 100%);
  border: 0;
  border-radius: 999px;
  box-shadow: 0 12px 28px rgba(34, 169, 207, .25);
  font-weight: 800;
  text-decoration: none;
  transition: transform .2s ease, box-shadow .2s ease;
}
.button:hover, .button:focus-visible { transform: translateY(-2px); box-shadow: 0 16px 34px rgba(34, 169, 207, .33); }
.button-small { min-height: 44px; padding: .55rem 1.15rem; font-size: .9rem; }

.hero {
  position: relative;
  min-height: 590px;
  overflow: hidden;
  background: linear-gradient(108deg, #ffffff 0%, #ffffff 40%, #eef9fd 100%);
}
.hero::after {
  content: "";
  position: absolute;
  inset: auto auto -200px -160px;
  width: 430px;
  height: 430px;
  border-radius: 50%;
  background: rgba(34, 183, 232, .07);
}
.hero-art { position: absolute; inset: 0; }
.hero-art img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero-art::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, #fff 4%, rgba(255,255,255,.98) 32%, rgba(255,255,255,.6) 56%, rgba(255,255,255,.08) 100%); }
.hero-content { position: relative; z-index: 2; padding-top: clamp(80px, 10vw, 130px); padding-bottom: 90px; }
.hero h1 { max-width: 750px; font-size: clamp(2rem, 5vw, 3.65rem); font-weight: 850; }
.hero h1 span { color: var(--brand-strong); }
.hero-lead { max-width: 660px; margin-top: 1.5rem; color: #39575f; font-size: 1.08rem; font-weight: 600; }
.hero-actions { display: flex; align-items: center; gap: 1.5rem; margin-top: 2rem; }
.text-link { color: var(--brand-strong); font-weight: 800; text-underline-offset: 5px; }

.quick-facts { position: relative; z-index: 5; margin-top: -46px; }
.fact-grid { display: grid; grid-template-columns: repeat(4, 1fr); background: white; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.fact { min-height: 118px; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 1.1rem; text-align: center; }
.fact + .fact { border-left: 1px solid var(--line); }
.fact strong { color: var(--brand-strong); font-size: 1.35rem; }
.fact span { margin-top: .15rem; color: var(--muted); font-size: .88rem; }

.intro-grid { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(240px, .65fr); gap: clamp(40px, 8vw, 100px); align-items: center; }
.section-copy p:not(.eyebrow):not(.lead) { color: var(--muted); }
.service-mark { padding: clamp(18px, 3vw, 30px); background: radial-gradient(circle at 40% 35%, #fff 0%, #f0fbfd 65%, #e3f5f9 100%); border: 1px solid var(--line); border-radius: 50%; box-shadow: var(--shadow); }
.treatment-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: clamp(55px, 7vw, 85px); }
.treatment-card { position: relative; overflow: hidden; padding: clamp(28px, 4vw, 42px); border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: 0 16px 45px rgba(34, 125, 148, .08); }
.treatment-card::before { content: ""; position: absolute; width: 130px; height: 130px; border-radius: 50%; right: -36px; top: -42px; opacity: .22; }
.treatment-card.cedar::before { background: var(--brand); }
.treatment-card.mite::before { background: var(--coral); }
.card-kicker { margin-bottom: .25rem; color: var(--brand-strong); font-weight: 800; font-size: .9rem; }
.treatment-card h3 { font-size: 1.75rem; margin-bottom: .9rem; }
.treatment-card > p:last-of-type { color: var(--muted); }
.note { margin-top: 1.35rem; padding: .8rem 1rem; background: var(--sky); border-radius: 12px; color: #286675; font-size: .92rem; font-weight: 700; }

.check-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 24px; margin: 2rem 0 0; padding: 0; list-style: none; }
.check-list li { position: relative; min-height: 62px; padding: 1rem 1rem 1rem 3.1rem; background: white; border: 1px solid var(--line); border-radius: 14px; font-weight: 650; }
.check-list li::before { content: "✓"; position: absolute; left: 1rem; top: 1rem; width: 1.45rem; height: 1.45rem; display: grid; place-items: center; border-radius: 50%; background: var(--brand); color: white; font-size: .88rem; line-height: 1; }

.flow-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 2.5rem; }
.step-card { position: relative; padding: 2rem 1.35rem 1.5rem; border: 1px solid var(--line); border-radius: 20px; background: white; }
.step-number { display: inline-grid; place-items: center; width: 46px; height: 46px; margin-bottom: 1rem; border-radius: 15px; background: var(--sky-strong); color: var(--brand-strong); font-weight: 900; }
.step-card h3 { margin-bottom: .65rem; }
.step-card p { color: var(--muted); font-size: .93rem; }
.appointment-note { display: flex; align-items: center; justify-content: space-between; gap: 2rem; margin-top: 30px; padding: 1.2rem 1.5rem; border-left: 5px solid var(--coral); border-radius: 12px; background: #fff4f1; }
.appointment-note strong { font-size: 1.05rem; }
.appointment-note p { margin: 0; color: #76544e; }

.section-deep { color: white; background: linear-gradient(140deg, #106f87 0%, #258d9b 58%, #36a8b0 100%); }
.dosing-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(40px, 8vw, 90px); align-items: start; }
.dose-steps { display: grid; gap: 18px; margin: 2rem 0 0; padding: 0; list-style: none; }
.dose-steps li { display: flex; gap: 1rem; align-items: flex-start; }
.dose-steps li > span { flex: 0 0 42px; width: 42px; height: 42px; display: grid; place-items: center; border-radius: 50%; background: white; color: var(--brand-strong); font-weight: 900; }
.dose-steps strong { font-size: 1.05rem; }
.dose-steps p { margin: .1rem 0 0; color: rgba(255,255,255,.78); }
.caution-box { padding: clamp(26px, 4vw, 38px); border: 1px solid rgba(255,255,255,.3); border-radius: var(--radius); background: rgba(255,255,255,.12); backdrop-filter: blur(6px); }
.caution-box h3 { margin-bottom: 1rem; }
.caution-box ul { margin: 0; padding-left: 1.25rem; }
.caution-box li + li { margin-top: .65rem; }

.price-panel { margin-top: 2rem; border: 1px solid var(--line); border-radius: 18px; overflow: hidden; box-shadow: 0 14px 38px rgba(35, 116, 135, .08); }
.price-row { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 1.5rem; padding: 1.2rem 1.4rem; background: white; }
.price-row + .price-row { border-top: 1px solid var(--line); }
.price-row strong { color: var(--brand-strong); font-size: 1.08rem; text-align: right; }
.price-head { color: white; background: var(--brand-strong); font-weight: 800; }

.safety-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(35px, 7vw, 80px); align-items: center; }
.safety-grid > div:first-child p:not(.eyebrow) { color: var(--muted); }
.emergency-card { padding: clamp(26px, 4vw, 38px); border: 1px solid #ffd0c8; border-radius: var(--radius); background: white; box-shadow: 0 18px 42px rgba(140, 65, 52, .08); }
.emergency-card h3 { color: #a34839; margin-bottom: 1rem; }
.emergency-card ul { margin: 0 0 1rem; padding-left: 1.25rem; }
.emergency-card p { margin: 0; padding: .8rem 1rem; border-radius: 10px; background: #fff1ee; color: #7e3e34; font-weight: 700; }
.plain-card { padding: clamp(26px, 4vw, 42px); border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: 0 14px 38px rgba(35, 116, 135, .07); }
.dot-list { columns: 2; column-gap: 2.5rem; margin: 0 0 1.5rem; padding-left: 1.25rem; }
.dot-list li { break-inside: avoid; margin-bottom: .55rem; }
.plain-card p { margin-bottom: 0; color: var(--muted); }

.faq-section { background: #f8fcfd; }
.faq-list { display: grid; gap: 12px; margin-top: 2rem; }
.faq-list details { border: 1px solid var(--line); border-radius: 16px; background: white; overflow: hidden; }
.faq-list summary { position: relative; padding: 1.2rem 3.4rem 1.2rem 1.35rem; cursor: pointer; font-weight: 800; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 1.25rem; top: 50%; transform: translateY(-50%); color: var(--brand-strong); font-size: 1.55rem; font-weight: 400; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { margin: 0; padding: 0 1.35rem 1.35rem; color: var(--muted); }

.final-cta { padding: clamp(70px, 8vw, 100px) 0; color: white; background: linear-gradient(125deg, #157f9c 0%, #23a8c8 55%, #3aa6aa 100%); }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 3rem; }
.cta-inner h2 { margin-bottom: 1rem; }
.cta-inner p:last-child { color: rgba(255,255,255,.82); }
.button-white { flex: 0 0 auto; min-width: 230px; color: var(--brand-strong); background: white; box-shadow: 0 16px 34px rgba(0,0,0,.14); }

.site-footer { padding: 44px 0 90px; background: white; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.footer-inner img { width: 280px; }
.footer-inner p { margin: .65rem 0 0; color: var(--muted); font-size: .9rem; }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { color: var(--brand-strong); font-weight: 700; text-underline-offset: 4px; }
.copyright { margin: 2.5rem 0 0; color: #8ba0a5; text-align: center; font-size: .78rem; }
.mobile-reserve { display: none; }

@media (max-width: 920px) {
  .desktop-nav { display: none; }
  .header-inner { min-height: 70px; }
  .brand img { width: min(280px, 46vw); }
  .header-inner .button-small { margin-left: auto; }
  .hero { min-height: 620px; }
  .hero-art img { object-position: 63% center; opacity: .72; }
  .hero-art::after { background: linear-gradient(90deg, #fff 4%, rgba(255,255,255,.97) 44%, rgba(255,255,255,.43) 80%, rgba(255,255,255,.2)); }
  .hero-content { padding-top: 90px; }
  .hero-lead { max-width: 570px; }
  .fact-grid { grid-template-columns: repeat(2, 1fr); }
  .fact:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .fact:nth-child(4) { border-top: 1px solid var(--line); }
  .intro-grid { grid-template-columns: 1fr; }
  .service-mark { width: min(420px, 80%); margin-inline: auto; }
  .flow-grid { grid-template-columns: repeat(2, 1fr); }
  .dosing-grid, .safety-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  body { padding-bottom: 72px; font-size: 16px; }
  .container, .narrow { width: min(100% - 28px, 1120px); }
  .section { padding: 68px 0; }
  .site-header { position: static; }
  .header-inner { width: calc(100% - 28px); min-height: 64px; }
  .brand img { width: 230px; max-width: 65vw; }
  .header-inner .button-small { display: none; }
  .hero { min-height: auto; padding-bottom: 56px; background: white; }
  .hero-art { position: relative; height: 205px; order: -1; }
  .hero-art img { opacity: 1; object-position: 67% center; }
  .hero-art::after { background: linear-gradient(0deg, #fff 0%, rgba(255,255,255,0) 45%); }
  .hero-content { padding-top: 8px; padding-bottom: 0; }
  .hero h1 { font-size: clamp(1.9rem, 9.5vw, 2.65rem); }
  .hero-lead { font-size: 1rem; }
  .hero-actions { align-items: stretch; flex-direction: column; gap: 1rem; }
  .text-link { text-align: center; }
  .quick-facts { margin-top: -18px; }
  .fact { min-height: 102px; padding: .8rem .5rem; }
  .fact strong { font-size: 1.13rem; }
  .fact span { font-size: .78rem; }
  .intro-grid { gap: 40px; }
  .service-mark { width: 76%; }
  .treatment-grid, .check-list, .flow-grid { grid-template-columns: 1fr; }
  .treatment-card { padding: 26px 22px; }
  .appointment-note { display: block; }
  .appointment-note p { margin-top: .35rem; }
  .price-row { grid-template-columns: 1fr; gap: .25rem; padding: 1rem; }
  .price-row strong { text-align: left; }
  .price-head { display: none; }
  .dot-list { columns: 1; }
  .cta-inner { align-items: stretch; flex-direction: column; }
  .button-white { min-width: 0; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
  .footer-links { flex-wrap: wrap; }
  .mobile-reserve { position: fixed; z-index: 200; left: 0; right: 0; bottom: 0; display: block; padding: 10px 14px calc(10px + env(safe-area-inset-bottom)); background: rgba(255,255,255,.96); border-top: 1px solid var(--line); box-shadow: 0 -10px 24px rgba(23, 76, 90, .1); }
  .mobile-reserve a { min-height: 50px; display: flex; align-items: center; justify-content: center; border-radius: 999px; color: white; background: linear-gradient(135deg, var(--brand), var(--teal)); font-weight: 850; text-decoration: none; }
}

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

@media print {
  .site-header, .mobile-reserve, .hero-actions, .final-cta { display: none !important; }
  .section { padding: 36px 0; }
  .hero { min-height: auto; }
  .hero-art { opacity: .18; }
  body { color: #000; }
}