:root {
  --ink: #0b0b0d;
  --paper: #ffffff;
  --gray: #6b6b70;          
  --gray-d: #a9a9ae;        
  --line: #e6e6e8;
  --accent: #b08a5a;
  --max: 1160px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif; font-weight: 400;
  line-height: 1.9; letter-spacing: .03em; overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { font-weight: 900; line-height: 1.35; letter-spacing: .04em; margin: 0 0 .6em; }
h2 { font-size: clamp(1.6rem, 3.6vw, 2.6rem); }
h3 { font-size: 1.15rem; font-weight: 700; }
.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.container.narrow { max-width: 820px; }
.small { font-size: .85rem; color: var(--gray); }
.eyebrow { display: inline-block; font-family: Inter, sans-serif; font-weight: 700; font-size: .78rem;
  letter-spacing: .28em; color: var(--accent); margin-bottom: 14px; }
.lead { font-size: 1.05rem; max-width: 46em; color: #2b2b30; }


.switcher { position: relative; z-index: 60; display: flex; flex-wrap: wrap; gap: 6px 14px; align-items: center;
  padding: 8px 16px; background: #1a1a1e; color: #d6d6da; font-size: .8rem; }
.switcher span { color: var(--gray-d); }
.switcher a { text-decoration: none; padding: 2px 10px; border-radius: 999px; border: 1px solid #3a3a40; }
.switcher a[aria-current="page"] { background: var(--accent); border-color: var(--accent); color: #fff; }



.site-header { position: sticky; top: 0; z-index: 50; color: #fff; }
.site-header::before { content: ""; position: absolute; inset: 0; z-index: -1; background: rgba(11,11,13,.86);
  backdrop-filter: saturate(140%) blur(10px); -webkit-backdrop-filter: saturate(140%) blur(10px); }
.bar { max-width: var(--max); margin: 0 auto; padding: 14px 24px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 900; letter-spacing: .12em; }
.brand .mark { width: 22px; height: 22px; background: var(--accent); transform: rotate(45deg); }
.site-nav ul { display: flex; gap: 26px; list-style: none; margin: 0; padding: 0; }
.site-nav a { text-decoration: none; font-size: .85rem; font-weight: 500; opacity: .85; }
.site-nav a:hover { opacity: 1; }
.nav-toggle { display: none; background: none; border: 1px solid #555; color: #fff; padding: 6px 12px;
  font: 700 .75rem Inter, sans-serif; letter-spacing: .2em; cursor: pointer; }


.hero { position: relative; min-height: 92vh; display: flex; align-items: flex-end; color: #fff; overflow: hidden; background: var(--ink); }
.hero-media { position: absolute; inset: 0; background-size: cover; background-position: center; }
.hero-media video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0;
  transition: opacity 1.4s ease; }
.hero-media video.is-on { opacity: 1; }
.hero::after { content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,.15) 0%, rgba(0,0,0,.25) 45%, rgba(0,0,0,.72) 100%); }
.hero .inner { position: relative; z-index: 2; max-width: var(--max); margin: 0 auto; width: 100%; padding: 0 24px 12vh; }
.hero h1 { font-size: clamp(2.1rem, 6.2vw, 4.6rem); margin-bottom: .35em; }
.hero p { font-size: clamp(.98rem, 1.6vw, 1.15rem); max-width: 34em; color: #f0f0f2; }
.tagline { display: inline-block; font: 700 .78rem Inter, "Noto Sans JP", sans-serif; letter-spacing: .3em;
  padding: 6px 14px; border: 1px solid rgba(255,255,255,.6); margin-bottom: 22px; }
.placeholder-tag { display: inline-block; font-size: .72rem; background: rgba(0,0,0,.55); color: #fff; padding: 2px 8px; margin-top: 10px; }
.scroll { position: absolute; z-index: 2; right: 24px; bottom: 28px; font: 700 .7rem Inter, sans-serif; letter-spacing: .3em;
  color: #fff; text-decoration: none; writing-mode: vertical-rl; padding-bottom: 56px; }
.scroll::after { content: ""; position: absolute; left: 50%; bottom: 0; width: 1px; height: 48px; background: #fff;
  animation: drop 2.2s ease-in-out infinite; transform-origin: top; }
@keyframes drop { 0% { transform: scaleY(0); } 50% { transform: scaleY(1); } 100% { transform: scaleY(0); transform-origin: bottom; } }


.section { padding: clamp(72px, 11vw, 140px) 0; }
.section.dark { background: var(--ink); color: #fff; }
.section.dark .lead { color: #e2e2e6; }
.section.dark .small { color: var(--gray-d); }

.points { display: grid; grid-template-columns: repeat(3, 1fr); gap: 44px; margin-top: 56px; }
.point .num { font: 700 2.4rem Inter, sans-serif; color: var(--accent); display: block; margin-bottom: 8px; }
.point p { color: #d0d0d5; font-size: .95rem; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px 28px; margin-top: 48px; }
.card .ph { overflow: hidden; aspect-ratio: 3 / 2; background: #ddd; }
.card .ph img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s cubic-bezier(.2,.7,.2,1); }
.card:hover .ph img { transform: scale(1.06); }
.card .body { padding-top: 18px; }
.card .en { font: 700 .7rem Inter, sans-serif; letter-spacing: .25em; color: var(--accent); }
.card p { color: #3a3a40; font-size: .93rem; margin: 0; }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; margin: 48px 0 24px; }
.stat { border-top: 1px solid #333; padding-top: 20px; }
.stat .v { font: 700 clamp(2.4rem, 5vw, 3.6rem) Inter, sans-serif; letter-spacing: 0; }
.stat .u { font-weight: 700; margin-left: 4px; color: var(--accent); }
.stat p { margin: 4px 0 0; color: #cfcfd4; font-size: .9rem; }

.band { position: relative; min-height: 70vh; display: flex; align-items: center; justify-content: center; text-align: center;
  color: #fff; background-size: cover; background-position: center; }
.band::before { content: ""; position: absolute; inset: 0; background: rgba(0,0,0,.5); }
.band-inner { position: relative; padding: 0 24px; max-width: 760px; }
.band h2 { font-size: clamp(1.7rem, 4.4vw, 3rem); }

.flow { list-style: none; padding: 0; margin: 48px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: s; }
.flow li { padding: 26px 22px 10px; border-left: 1px solid var(--line); }
.flow li:first-child { border-left: 0; padding-left: 0; }
.flow .step { font: 700 .72rem Inter, sans-serif; letter-spacing: .25em; color: var(--accent); }
.flow p { font-size: .92rem; color: #3a3a40; margin: 0; }

details.faq { border-bottom: 1px solid #2c2c31; padding: 6px 0; }
details.faq summary { cursor: pointer; list-style: none; padding: 16px 36px 16px 0; font-weight: 700; position: relative; }
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: "+"; position: absolute; right: 4px; top: 12px; font: 400 1.5rem Inter, sans-serif; color: var(--accent);
  transition: transform .3s; }
details.faq[open] summary::after { transform: rotate(45deg); }
details.faq p { margin: 0 0 18px; color: #d0d0d5; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.table-wrap { overflow-x: auto; }
.info-table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.info-table th, .info-table td { text-align: left; padding: 14px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
.info-table th { width: 8em; font-weight: 700; white-space: nowrap; }
.news { list-style: none; padding: 0; margin: 0; }
.news li { display: grid; grid-template-columns: 6.5em auto 1fr; gap: 12px; align-items: baseline; padding: 14px 0; border-bottom: 1px solid var(--line); }
.news time { font: 500 .85rem Inter, sans-serif; color: var(--gray); }
.news .tag { font-size: .72rem; border: 1px solid var(--ink); padding: 0 8px; white-space: nowrap; }

.cta { background: var(--accent); color: #fff; text-align: center; }
.cta .eyebrow { color: #fff; opacity: .9; }
.cta .lead { color: #fff; margin: 0 auto; }
.btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 32px; }
.btn { display: inline-block; padding: 16px 34px; font-weight: 700; text-decoration: none; letter-spacing: .08em;
  transition: transform .25s, background .25s, color .25s; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--ink); color: #fff; }
.btn-ghost { border: 1px solid #fff; color: #fff; }
.btn-ghost:hover { background: #fff; color: var(--ink); }
.tel { margin-top: 22px; font-size: .95rem; }
.tel a { font: 700 1.3rem Inter, sans-serif; margin: 0 10px; text-decoration: none; }

.site-footer { background: var(--ink); color: #c8c8cd; padding: 56px 0 120px; font-size: .82rem; }
.site-footer .fname { color: #fff; font-weight: 900; letter-spacing: .12em; font-size: 1rem; }
.site-footer .note, .site-footer .credits { color: var(--gray-d); }
.site-footer .credits a { color: #d6d6da; }

.sticky-cta { display: none; }
.demo-ribbon { position: fixed; right: 12px; bottom: 12px; z-index: 70; background: rgba(0,0,0,.75); color: #fff;
  font-size: .72rem; padding: 4px 10px; pointer-events: none; }


.motion .reveal { opacity: 0; transform: translateY(28px); transition: opacity .9s ease, transform .9s cubic-bezier(.2,.7,.2,1); }
.motion .reveal.is-in { opacity: 1; transform: none; }

@media (max-width: 860px) {
  
  .site-nav { position: absolute; left: 0; right: 0; top: 100%; background: var(--ink); padding: 20px 24px 32px;
    opacity: 0; transform: translateY(-8px); visibility: hidden; max-height: calc(100vh - 64px); overflow-y: auto;
    transition: opacity .3s ease, transform .3s ease, visibility 0s linear .3s; }
  .site-nav.open { opacity: 1; transform: none; visibility: visible; transition: opacity .3s ease, transform .3s ease; }
  .brand { min-width: 0; }
  .brand span:last-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 60vw; }
  .scroll { display: none; }
  .info-table th { width: 6em; white-space: normal; }
  .info-table td { overflow-wrap: anywhere; }
  .stat .v { font-size: clamp(1.8rem, 9vw, 2.6rem); overflow-wrap: anywhere; }
  .site-nav ul { flex-direction: column; gap: 18px; }
  .site-nav a { font-size: 1.05rem; }
  .nav-toggle { display: block; position: relative; z-index: 2; }
  .points, .cards, .grid-2 { grid-template-columns: 1fr; gap: 36px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .flow { grid-template-columns: 1fr; }
  .flow li, .flow li:first-child { border-left: 0; border-top: 1px solid var(--line); padding: 20px 0 6px; }
  .news li { grid-template-columns: 6.5em 1fr; }
  .news .t { grid-column: 1 / -1; }
  .hero { min-height: 86vh; }
  .sticky-cta { display: block; position: fixed; left: 0; right: 0; bottom: 0; z-index: 40; padding: 10px 12px;
    background: rgba(255,255,255,.94); box-shadow: 0 -4px 18px rgba(0,0,0,.08); }
  .sticky-cta .btn { display: block; text-align: center; padding: 14px; }
  .demo-ribbon { bottom: 76px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .scroll::after { animation: none; }
  .card .ph img, .btn { transition: none; }
}