:root {
  --night: #211e1b; --night-2: #2b2723; --night-line: #4d443a;
  --amber: #f59e0b; --amber-dark: #b45309;
  --ink: #1f1b17; --sub: #5b544c; --line: #e7e1d8;
  --paper: #fffdf8; --soft: #f7f2ea;
  --on-night: #f5efe6; --on-night-sub: #cbbfb0;
  --wrap: 1080px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: "Noto Sans JP", "Yu Gothic UI", "Yu Gothic", "Meiryo", sans-serif;
  font-size: 16px; line-height: 1.9; letter-spacing: .02em;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

/* ---------- header / footer ---------- */
.site-header { background: var(--night); color: var(--on-night); position: sticky; top: 0; z-index: 10; border-bottom: 1px solid #ffffff10; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 500; letter-spacing: .2em; font-size: 14px; }
.brand img { width: 30px; height: 30px; flex: none; }
.nav { display: flex; gap: 28px; font-size: 14px; }
.nav a { text-decoration: none; color: var(--on-night-sub); padding: 4px 0; border-bottom: 2px solid transparent; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--on-night); border-bottom-color: var(--amber); }

.site-footer { background: var(--night); color: var(--on-night-sub); font-size: 13px; padding: 40px 0 32px; margin-top: 96px; }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 16px 40px; justify-content: space-between; align-items: flex-start; }
.site-footer .brand { color: var(--on-night); }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 24px; flex-wrap: wrap; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: var(--on-night); }
.site-footer .legal { flex-basis: 100%; border-top: 1px solid var(--night-line); padding-top: 16px; font-size: 12px; line-height: 1.8; color: #9a9188; }

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; font-weight: 700; font-size: 15px;
       border-radius: 999px; padding: 12px 28px; transition: transform .15s, background .15s; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--amber); color: var(--night); }
.btn-primary:hover { background: #fbb534; }
.btn-ghost { border: 1px solid currentColor; color: var(--ink); }
.btn-ghost:hover { background: #00000008; }
.btn .arrow { transition: transform .15s; }
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- home hero ---------- */
.hero { background: var(--night); color: var(--on-night); position: relative; overflow: hidden; }
.hero .wrap { padding-top: 120px; padding-bottom: 120px; position: relative; }
.hero .eyebrow { color: var(--amber); letter-spacing: .3em; font-size: 13px; font-weight: 700; margin: 0 0 24px; }
.hero h1 { font-size: clamp(32px, 6vw, 56px); line-height: 1.4; margin: 0 0 40px; font-weight: 700; letter-spacing: .04em; }
.hero h1 em { font-style: normal; color: var(--amber); }
.hero .glow { position: absolute; right: 8%; top: 50%; width: 360px; height: 360px; transform: translateY(-50%);
              background: radial-gradient(circle, #f59e0b33 0%, #f59e0b00 65%); pointer-events: none; }
.hero .candle { position: absolute; right: calc(8% + 160px); top: 50%; transform: translateY(-50%); width: 40px; opacity: .9; }

.story { padding: 96px 0 24px; }
.story .wrap { max-width: 760px; }
.story p { font-size: 17px; margin: 0 0 1.6em; color: var(--sub); }
.story p.strong { color: var(--ink); font-weight: 700; font-size: 18px; }
.story ul.verbs { list-style: none; padding: 0; margin: 0 0 1.6em; display: grid; gap: 12px; }
.story ul.verbs li { background: var(--soft); border-left: 3px solid var(--amber); border-radius: 4px; padding: 12px 18px; color: var(--ink); }

.name-note { padding: 48px 0; }
.name-note .card { background: var(--night); color: var(--on-night); border-radius: 16px; padding: 40px; display: grid; grid-template-columns: auto 1fr; gap: 32px; align-items: center; max-width: 760px; margin: 0 auto; }
.name-note img { width: 72px; height: 72px; }
.name-note h2 { margin: 0 0 8px; font-size: 20px; letter-spacing: .1em; }
.name-note h2 small { display: block; font-size: 13px; color: var(--amber); letter-spacing: .2em; font-weight: 500; }
.name-note p { margin: 0; color: var(--on-night-sub); font-size: 15px; }
.center { text-align: center; }

/* ---------- page heads ---------- */
.page-head { background: var(--night); color: var(--on-night); padding: 72px 0 64px; }
.page-head .eyebrow { color: var(--amber); letter-spacing: .3em; font-size: 12px; font-weight: 700; margin: 0 0 12px; }
.page-head h1 { margin: 0 0 12px; font-size: clamp(28px, 4.5vw, 44px); line-height: 1.35; }
.page-head h1 em { font-style: normal; color: var(--amber); }
.page-head p { margin: 0; color: var(--on-night-sub); max-width: 680px; }
.crumbs { font-size: 13px; color: #9a9188; margin-bottom: 20px; }
.crumbs a { text-decoration: none; color: var(--on-night-sub); }
.crumbs a:hover { color: var(--amber); }

/* ---------- product cards ---------- */
.products { padding: 72px 0 0; }
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.card-p { background: #fff; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; display: flex; flex-direction: column; transition: box-shadow .2s, transform .2s; }
.card-p:hover { box-shadow: 0 16px 40px #2b272314; transform: translateY(-2px); }
.card-p .thumb { background: var(--night); aspect-ratio: 16 / 10; overflow: hidden; }
.card-p .thumb img { width: 100%; height: 100%; object-fit: cover; object-position: top center; }
.card-p .body { padding: 28px 28px 32px; display: flex; flex-direction: column; flex: 1; }
.card-p .tag { font-size: 12px; letter-spacing: .15em; color: var(--amber-dark); font-weight: 700; margin: 0 0 4px; }
.card-p h2 { margin: 0 0 12px; font-size: 24px; line-height: 1.4; }
.card-p p { margin: 0 0 24px; color: var(--sub); }
.card-p .btn { align-self: flex-start; margin-top: auto; }

/* ---------- detail sections ---------- */
.section { padding: 80px 0 0; }
.section h2 { font-size: clamp(22px, 3.2vw, 30px); line-height: 1.45; margin: 0 0 12px; }
.section h2 .en { display: block; font-size: 12px; letter-spacing: .25em; color: var(--amber-dark); font-weight: 700; }
.section .lead { color: var(--sub); margin: 0 0 36px; max-width: 760px; }

.detail-hero { display: grid; grid-template-columns: 1fr 1.1fr; gap: 48px; align-items: center; }
.badges { display: flex; flex-wrap: wrap; gap: 8px; margin: 24px 0 32px; }
.badges span { border: 1px solid var(--amber); color: var(--amber); border-radius: 4px; padding: 2px 12px; font-size: 13px; font-weight: 700; }
.shot { border-radius: 10px; border: 1px solid #3a342e; box-shadow: 0 20px 48px #0000004d; background: var(--night); }
.shot-light { border-radius: 10px; border: 1px solid var(--line); box-shadow: 0 12px 32px #2b272314; }
figure { margin: 0; }
figcaption { font-size: 13px; color: var(--sub); margin-top: 10px; line-height: 1.7; }

.worries { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 20px; }
.worry { background: var(--soft); border-radius: 8px; padding: 14px 18px 14px 44px; position: relative; }
.worry::before { content: "✓"; position: absolute; left: 18px; top: 14px; color: var(--amber-dark); font-weight: 800; }

.answer { background: var(--night); color: var(--on-night); border-radius: 16px; padding: 36px 40px; margin-top: 32px; }
.answer .big { font-size: clamp(19px, 2.6vw, 24px); font-weight: 700; line-height: 1.6; margin: 0 0 8px; }
.answer .big em { font-style: normal; color: var(--amber); }
.answer p { color: var(--on-night-sub); margin: 0; }

.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.pillar { background: #fff; border: 1px solid var(--line); border-top: 4px solid var(--amber); border-radius: 10px; padding: 24px; }
.pillar .num { font-size: 32px; font-weight: 800; color: var(--amber); line-height: 1; margin-bottom: 12px; }
.pillar h3 { margin: 0 0 8px; font-size: 18px; line-height: 1.5; }
.pillar p, .pillar li { color: var(--sub); font-size: 15px; margin: 0; }
.pillar ul { margin: 0; padding-left: 1.2em; }
.pillar li + li { margin-top: 6px; }

.steps { counter-reset: step; display: grid; gap: 0; }
.step { display: grid; grid-template-columns: 56px 1fr; gap: 20px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.step:last-child { border-bottom: 0; }
.step .no { counter-increment: step; width: 44px; height: 44px; border-radius: 50%; background: var(--amber); color: var(--night); font-weight: 800; display: grid; place-items: center; font-size: 18px; }
.step .no::before { content: counter(step); }
.step h3 { margin: 6px 0 4px; font-size: 18px; }
.step p { margin: 0; color: var(--sub); }

.features { display: grid; grid-template-columns: 1fr 1fr; gap: 28px 40px; }
.feature { border-left: 3px solid var(--amber); padding-left: 18px; }
.feature h3 { margin: 0 0 4px; font-size: 17px; }
.feature p { margin: 0; color: var(--sub); font-size: 15px; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: start; }

.note { background: var(--soft); border-left: 4px solid var(--amber); border-radius: 6px; padding: 18px 22px; margin-top: 28px; color: var(--ink); }
.note-warn { background: #fff1f2; border-left-color: #be123c; color: #4c1d24; }

.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: 10px; border: 1px solid var(--line); }
table { width: 100%; border-collapse: collapse; font-size: 15px; line-height: 1.6; min-width: 560px; background: #fff; }
th, td { padding: 14px 16px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
thead th { background: var(--night); color: var(--on-night); font-weight: 700; }
thead th.us { background: var(--amber); color: var(--night); }
td.us { background: #fff7e6; font-weight: 700; }
td:first-child { color: var(--sub); }
tbody tr:last-child td { border-bottom: 0; }
.yes { color: #15803d; font-weight: 700; }
.no-mark { color: #9a9188; }

.boxes { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.box { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 22px 26px; }
.box h3 { margin: 0 0 10px; font-size: 17px; }
.box ul { margin: 0; padding-left: 1.2em; color: var(--sub); font-size: 15px; }
.box ul.marks { list-style: none; padding-left: 0; }

.faq { margin: 0; }
.faq div { border-bottom: 1px solid var(--line); padding: 18px 0; }
.faq dt { font-weight: 700; }
.faq dt::before { content: "Q. "; color: var(--amber-dark); }
.faq dd { margin: 6px 0 0; color: var(--sub); }

.cta { background: var(--night); color: var(--on-night); border-radius: 20px; padding: 56px 40px; text-align: center; margin-top: 80px; }
.cta .big { font-size: clamp(20px, 3vw, 28px); font-weight: 700; line-height: 1.55; margin: 0 0 12px; }
.cta .big em { font-style: normal; color: var(--amber); }
.cta p { color: var(--on-night-sub); margin: 0 0 28px; }
.cta small { display: block; margin-top: 16px; color: #9a9188; font-size: 12px; }

.disclaimer { font-size: 12px; color: #8a8178; line-height: 1.8; margin-top: 40px; }
.disclaimer p { margin: 0 0 6px; }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .detail-hero, .split, .cards, .pillars, .features, .boxes, .worries { grid-template-columns: 1fr; }
  .hero .glow, .hero .candle { display: none; }
  .hero .wrap { padding-top: 80px; padding-bottom: 80px; }
}
@media (max-width: 560px) {
  .wrap { padding: 0 16px; }
  .nav { gap: 16px; font-size: 13px; }
  .brand span { display: none; }
  .name-note .card { grid-template-columns: 1fr; padding: 28px 24px; text-align: center; }
  .name-note img { margin: 0 auto; }
  .answer, .cta { padding: 28px 22px; }
  .step { grid-template-columns: 44px 1fr; gap: 14px; }
  .story { padding-top: 64px; }
}
.nb { display: inline-block; }
.nav { align-items: center; }
.nav a.lang { border: 1px solid var(--night-line); border-radius: 999px; padding: 2px 12px; font-size: 12px; color: var(--on-night-sub); }
.nav a.lang:hover { border-color: var(--amber); color: var(--on-night); }
.lang-en .hero h1, .lang-en .page-head h1 { letter-spacing: 0; }
.video { position: relative; aspect-ratio: 16 / 9; border-radius: 12px; overflow: hidden; background: var(--night); box-shadow: 0 16px 40px #2b272326; }
.video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.card-p .actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 24px; margin-top: auto; }
.card-p .actions .btn { margin-top: 0; }
.video-link { font-size: 14px; font-weight: 700; color: var(--amber-dark); text-decoration: none; }
.video-link:hover { text-decoration: underline; }