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

:root {
  --ink: #15211d;
  --ink-soft: #52615b;
  --cream: #f3efe5;
  --paper: #fbfaf6;
  --green: #1f5142;
  --green-deep: #123b30;
  --gold: #c2a266;
  --line: rgba(21, 33, 29, .14);
  --serif: "Shippori Mincho", "Yu Mincho", serif;
  --sans: "DM Sans", "Hiragino Sans", "Yu Gothic", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }

.site-header {
  position: absolute;
  z-index: 10;
  top: 0;
  left: 0;
  right: 0;
  height: 78px;
  padding: 0 clamp(22px, 5vw, 72px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255,255,255,.16);
  color: #fff;
}
.brand {
  text-decoration: none;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .24em;
}
.brand b { color: #e7c983; }
.header-note { font-size: 10px; letter-spacing: .22em; opacity: .64; }

.hero {
  position: relative;
  min-height: 760px;
  overflow: hidden;
  color: #fff;
  background:
    radial-gradient(circle at 82% 18%, rgba(194,162,102,.2), transparent 25%),
    linear-gradient(135deg, #163f34 0%, #0f2f28 56%, #0b241e 100%);
}
.hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 120px;
  background: linear-gradient(to top, rgba(8,28,23,.32), transparent);
}
.hero-orbit {
  position: absolute;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 50%;
}
.orbit-one { width: 650px; height: 650px; right: -170px; top: -150px; }
.orbit-two { width: 420px; height: 420px; right: -50px; top: -30px; }
.hero-inner {
  position: relative;
  z-index: 2;
  width: min(1180px, calc(100% - 44px));
  min-height: 760px;
  margin: 0 auto;
  padding: 150px 0 92px;
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, .55fr);
  align-items: center;
  gap: clamp(60px, 8vw, 128px);
}
.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 30px;
  color: rgba(255,255,255,.66);
  font-size: 11px;
  letter-spacing: .16em;
}
.eyebrow span {
  padding: 2px 8px;
  border: 1px solid rgba(255,255,255,.35);
  color: #fff;
}
.hero h1 {
  max-width: 760px;
  margin: 0;
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(42px, 6.2vw, 80px);
  line-height: 1.35;
  letter-spacing: .04em;
}
.hero h1 em {
  color: #e7c983;
  font-style: normal;
  background: linear-gradient(transparent 72%, rgba(231,201,131,.18) 0);
}
.hero-lead {
  max-width: 650px;
  margin: 30px 0 0;
  color: rgba(255,255,255,.78);
  font-family: var(--serif);
  font-size: clamp(15px, 1.5vw, 18px);
}
.hero-actions {
  margin-top: 38px;
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 0 30px;
  border-radius: 2px;
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  transition: transform .2s, background .2s;
}
.button:hover { transform: translateY(-2px); }
.button-primary { background: #fff; color: var(--green-deep); }
.text-link { color: rgba(255,255,255,.84); font-size: 13px; text-underline-offset: 5px; }
.text-link span { margin-left: 5px; color: #e7c983; }
.microcopy { margin-top: 24px; color: rgba(255,255,255,.46); font-size: 11px; }

.hero-card {
  padding: 34px 32px 30px;
  border: 1px solid rgba(255,255,255,.2);
  background: rgba(255,255,255,.06);
  backdrop-filter: blur(10px);
}
.hero-card-number { color: #e7c983; font-size: 10px; letter-spacing: .22em; }
.hero-card h2 {
  margin: 18px 0 28px;
  font-family: var(--serif);
  font-size: 30px;
  font-weight: 500;
  line-height: 1.5;
}
.hero-card ol { margin: 0; padding: 0; list-style: none; }
.hero-card li {
  display: flex;
  gap: 16px;
  padding: 13px 0;
  border-top: 1px solid rgba(255,255,255,.14);
  color: rgba(255,255,255,.8);
  font-size: 13px;
}
.hero-card li span { color: #e7c983; font-size: 10px; letter-spacing: .1em; }

.section-inner { width: min(1100px, calc(100% - 44px)); margin: 0 auto; }
.section-inner.narrow { max-width: 760px; }
.check-intro { padding: 100px 0 70px; text-align: center; }
.section-kicker { color: var(--gold); font-size: 11px; letter-spacing: .25em; }
.check-intro h2 {
  margin: 14px 0 18px;
  font-family: var(--serif);
  font-size: clamp(30px, 5vw, 46px);
  font-weight: 500;
}
.check-intro p:last-child { color: var(--ink-soft); }

.check-panel { padding: 0 0 110px; }
.check-layout { max-width: 860px; }
.check-progress { margin: 0 0 18px; display: flex; align-items: center; gap: 18px; color: var(--ink-soft); font-size: 12px; }
.check-progress > div { flex: 1; height: 3px; overflow: hidden; background: #ded9cc; }
.check-progress i { display: block; width: 0; height: 100%; background: var(--green); transition: width .25s ease; }
.check-form { border: 1px solid var(--line); background: #fff; box-shadow: 0 24px 80px rgba(21,33,29,.06); }
.check-form fieldset { margin: 0; padding: 28px 32px; border: 0; border-bottom: 1px solid var(--line); }
.check-form legend { width: 100%; padding: 0; font-family: var(--serif); font-size: 18px; font-weight: 500; }
.check-form legend span { display: inline-block; width: 42px; color: var(--gold); font-family: var(--sans); font-size: 11px; letter-spacing: .12em; }
.answer-row { margin: 18px 0 0 42px; display: flex; gap: 10px; flex-wrap: wrap; }
.answer-row label { position: relative; min-width: 130px; padding: 9px 16px; border: 1px solid var(--line); cursor: pointer; font-size: 13px; transition: border .2s, background .2s; }
.answer-row label:has(input:checked) { border-color: var(--green); background: #edf3ef; }
.answer-row input { margin: 0 9px 0 0; accent-color: var(--green); }
.button-check { margin: 28px 32px; border: 0; background: var(--green); color: #fff; cursor: pointer; }
.button-check:disabled { cursor: not-allowed; opacity: .35; transform: none; }
.check-result { margin-top: 22px; padding: 34px; border-left: 4px solid var(--green); background: #edf3ef; }
.check-result.result-caution { border-left-color: #9f6b35; background: #f8efe5; }
.result-label { margin: 0 0 10px; color: var(--gold); font-size: 10px; letter-spacing: .2em; }
.check-result h3 { margin: 0 0 10px; font-family: var(--serif); font-size: 28px; }
.check-result p { color: var(--ink-soft); }
.check-result .button { margin: 16px 0 0; }

.basics { padding: 110px 0; background: var(--cream); }
.section-head h2, .product-copy h2, .doctor-note h2, .faq h2, .final-cta h2 {
  margin: 12px 0 0;
  font-family: var(--serif);
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 500;
  line-height: 1.5;
}
.split-head { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: end; }
.split-head > p { max-width: 520px; color: var(--ink-soft); }
.basic-grid { margin-top: 58px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.basic-card { min-height: 310px; padding: 34px 30px; border: 1px solid rgba(21,33,29,.12); background: rgba(255,255,255,.56); }
.card-number { color: var(--gold); font-size: 11px; letter-spacing: .18em; }
.basic-card h3 { margin: 52px 0 18px; font-family: var(--serif); font-size: 26px; font-weight: 500; }
.basic-card p { color: var(--ink-soft); font-size: 14px; }

.product { padding: 130px 0; }
.product-layout { display: grid; grid-template-columns: minmax(320px, .8fr) minmax(0, 1.2fr); gap: clamp(60px, 9vw, 130px); align-items: center; }
.product-visual { position: relative; min-height: 620px; overflow: hidden; display: grid; place-items: center; background: linear-gradient(150deg, #e7e1d2, #f5f2e9); }
.product-visual > p { position: absolute; left: 28px; bottom: 24px; margin: 0; color: rgba(21,33,29,.42); font-size: 10px; letter-spacing: .22em; line-height: 1.5; }
.product-ring { position: absolute; border: 1px solid rgba(31,81,66,.18); border-radius: 50%; }
.ring-a { width: 470px; height: 470px; }
.ring-b { width: 330px; height: 330px; }
.product-mark { position: relative; z-index: 2; width: 240px; height: 340px; padding: 36px 28px; display: flex; flex-direction: column; align-items: center; justify-content: center; border: 1px solid rgba(31,81,66,.35); color: var(--green-deep); background: rgba(255,255,255,.48); box-shadow: 0 28px 50px rgba(12,37,30,.1); }
.product-mark::before, .product-mark::after { content: ""; position: absolute; width: 36px; height: 36px; border-style: solid; border-color: var(--gold); }
.product-mark::before { top: 14px; left: 14px; border-width: 1px 0 0 1px; }
.product-mark::after { right: 14px; bottom: 14px; border-width: 0 1px 1px 0; }
.product-mark small { font-size: 9px; letter-spacing: .18em; }
.product-mark b { margin: 30px 0 24px; color: var(--green); font-family: var(--serif); font-size: 118px; font-weight: 400; line-height: .8; }
.product-mark span { font-family: var(--serif); font-size: 16px; letter-spacing: .08em; }
.product-intro { margin: 26px 0 34px; color: var(--ink-soft); }
.fact-list { margin: 0; }
.fact-list div { padding: 18px 0; display: grid; grid-template-columns: 110px 1fr; gap: 18px; border-top: 1px solid var(--line); }
.fact-list dt { color: var(--gold); font-size: 11px; letter-spacing: .12em; }
.fact-list dd { margin: 0; font-size: 14px; }
.cta-box { margin-top: 34px; padding: 26px; border: 1px solid var(--line); background: var(--cream); }
.cta-box > div { display: flex; align-items: flex-start; gap: 12px; }
.cta-box p { margin: 0; color: var(--ink-soft); font-size: 13px; }
.ad-label { display: inline-flex; flex: 0 0 auto; padding: 2px 8px; border: 1px solid currentColor; color: var(--green); font-size: 10px; letter-spacing: .1em; }
.button-gold { width: 100%; margin-top: 20px; background: var(--gold); color: #fff; }
.cta-box small { display: block; margin-top: 10px; color: var(--ink-soft); font-size: 10px; text-align: center; }

.doctor-note { padding: 110px 0; background: #e9eee9; }
.note-box { text-align: center; }
.note-box > p:not(.section-kicker) { margin: 26px auto 18px; color: var(--ink-soft); }
.note-box a { color: var(--green); text-underline-offset: 5px; }

.faq { padding: 120px 0; }
.faq .section-head { margin-bottom: 42px; text-align: center; }
.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { position: relative; padding: 24px 44px 24px 0; cursor: pointer; list-style: none; font-family: var(--serif); font-size: 18px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 10px; top: 22px; color: var(--gold); font-family: var(--sans); font-size: 22px; }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 0; padding: 0 44px 26px 0; color: var(--ink-soft); font-size: 14px; }

.final-cta { padding: 120px 0; color: #fff; text-align: center; background: var(--green-deep); }
.ad-label.light { color: rgba(255,255,255,.8); }
.final-cta h2 { margin-top: 22px; }
.final-cta p { margin: 24px auto; color: rgba(255,255,255,.7); }
.button-light { min-width: min(100%, 420px); background: #fff; color: var(--green-deep); }
.final-cta small { display: block; margin-top: 18px; color: rgba(255,255,255,.45); font-size: 10px; }

.references { padding: 70px 0; background: #f3f1eb; }
.references h2 { margin: 0 0 16px; font-family: var(--serif); font-size: 20px; }
.references ul { margin: 0; padding-left: 20px; }
.references li { margin: 8px 0; font-size: 12px; }
.references a { color: var(--green); text-underline-offset: 3px; }
.references p { margin-top: 18px; color: var(--ink-soft); font-size: 11px; }

.site-footer { padding: 54px clamp(22px, 5vw, 72px); display: flex; justify-content: space-between; gap: 40px; color: rgba(255,255,255,.65); background: #0c1f1a; }
.site-footer .brand { color: #fff; }
.site-footer p { max-width: 480px; font-size: 12px; }
.site-footer > div:last-child { display: flex; align-items: flex-end; gap: 20px; flex-direction: column; }
.site-footer a:not(.brand) { font-size: 12px; }
.site-footer small { color: rgba(255,255,255,.35); }
.mobile-cta { display: none; }

@media (max-width: 800px) {
  .header-note { display: none; }
  .hero, .hero-inner { min-height: auto; }
  .hero-inner { grid-template-columns: 1fr; padding: 130px 0 78px; gap: 48px; }
  .hero-card { max-width: 460px; }
  .split-head, .product-layout { grid-template-columns: 1fr; }
  .split-head { gap: 20px; }
  .basic-grid { grid-template-columns: 1fr; }
  .basic-card { min-height: 0; }
  .basic-card h3 { margin-top: 32px; }
  .product-visual { min-height: 520px; }
  .site-footer { padding-bottom: 100px; flex-direction: column; }
  .site-footer > div:last-child { align-items: flex-start; }
  .mobile-cta { position: fixed; z-index: 200; left: 0; right: 0; bottom: 0; height: 72px; padding: 9px 12px 9px 18px; display: flex; align-items: center; justify-content: space-between; gap: 12px; color: #fff; background: rgba(12,31,26,.96); backdrop-filter: blur(10px); }
  .mobile-cta span { font-size: 11px; }
  .mobile-cta span b { margin-right: 6px; padding: 1px 5px; border: 1px solid rgba(255,255,255,.45); font-size: 9px; }
  .mobile-cta a { padding: 11px 16px; border-radius: 2px; color: var(--green-deep); background: #fff; text-decoration: none; font-size: 12px; font-weight: 600; }
}

@media (max-width: 520px) {
  .site-header { height: 68px; }
  .hero h1 { font-size: 40px; }
  .hero-lead { font-size: 15px; }
  .hero-actions { align-items: stretch; flex-direction: column; gap: 18px; }
  .button { width: 100%; }
  .text-link { text-align: center; }
  .hero-card { padding: 27px 24px; }
  .check-intro { padding: 72px 0 48px; }
  .check-panel { padding-bottom: 78px; }
  .check-form fieldset { padding: 24px 20px; }
  .check-form legend { font-size: 16px; }
  .check-form legend span { display: block; margin-bottom: 6px; }
  .answer-row { margin-left: 0; }
  .answer-row label { flex: 1; min-width: 110px; }
  .button-check { width: calc(100% - 40px); margin: 24px 20px; }
  .check-result { padding: 26px 22px; }
  .basics, .doctor-note { padding: 80px 0; }
  .product, .faq, .final-cta { padding: 88px 0; }
  .product-visual { min-height: 470px; }
  .fact-list div { grid-template-columns: 1fr; gap: 5px; }
  .cta-box > div { flex-direction: column; }
}