:root {
  --red: #b71c2b;
  --red-dark: #96141f;
  --ink: #222;
  --text: #3a3a3a;
  --muted: #6e6e6e;
  --line: #dcdcdc;
  --bg-alt: #f7f6f3;
  --paper: #fbfaf7;
  --green: #1d7a46;
  --head-h: 72px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--head-h); }
body {
  margin: 0;
  font-family: "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
  font-size: 16px;
  font-weight: 400;
  color: var(--text);
  line-height: 1.9;
  letter-spacing: .03em;
  -webkit-font-smoothing: antialiased;
  background: #fff;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { color: var(--ink); line-height: 1.5; margin: 0; font-weight: 700; }
.wrap { width: min(1100px, 100% - 40px); margin-inline: auto; }
[hidden] { display: none !important; }

/* buttons (square) */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  padding: 14px 30px; border-radius: 0; border: 1px solid var(--red);
  background: var(--red); color: #fff; text-decoration: none;
  cursor: pointer; font: inherit; font-weight: 700; letter-spacing: .05em;
  transition: background .2s, color .2s, border-color .2s;
}
.btn:hover { background: var(--red-dark); border-color: var(--red-dark); }
.btn-outline { background: #fff; color: var(--ink); border-color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: #fff; border-color: var(--ink); }
.btn-white { background: #fff; color: var(--ink); border-color: #fff; }
.btn-white:hover { background: var(--paper); border-color: var(--paper); }
.btn-outline-white { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .8); }
.btn-outline-white:hover { background: #fff; color: var(--ink); border-color: #fff; }
.btn-sm { padding: 8px 18px; font-size: .9rem; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .6; cursor: wait; }

/* header */
.header {
  position: fixed; inset: 0 0 auto; z-index: 50; height: var(--head-h);
  background: #fff; border-bottom: 1px solid var(--line);
}
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand img { height: 46px; width: auto; }
.nav { display: flex; align-items: center; gap: 26px; }
.nav ul { display: flex; gap: 26px; list-style: none; margin: 0; padding: 0; }
.nav ul a { text-decoration: none; font-size: .95rem; color: var(--ink); }
.nav ul a:hover { color: var(--red); }
.nav ul a[aria-current="page"] { color: var(--red); font-weight: 700; }
.audience-switch { text-decoration: none; font-size: .85rem; color: var(--ink); border: 1px solid var(--line); padding: 6px 12px; white-space: nowrap; }
.audience-switch:hover { border-color: var(--ink); }
.menu-btn { display: none; width: 44px; height: 44px; border: 0; background: none; cursor: pointer; padding: 10px; }
.menu-btn span { display: block; height: 2px; background: var(--ink); margin: 5px 0; transition: transform .25s, opacity .25s; }
.menu-btn[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-btn[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* hero */
.hero, .page-hero { background: var(--paper); border-bottom: 1px solid var(--line); }
.hero { padding: calc(var(--head-h) + 64px) 0 72px; }
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.hero h1, .page-hero h1 { font-size: clamp(1.9rem, 3.6vw, 2.7rem); letter-spacing: .04em; }
.lang-en .hero h1 { font-size: clamp(1.8rem, 3.2vw, 2.4rem); letter-spacing: 0; }
.hero-lead { color: var(--text); margin: 22px 0 32px; max-width: 32em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-photos { display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: auto auto; gap: 8px; }
.hp { width: 100%; height: 100%; object-fit: cover; }
.hp1 { grid-column: 1 / -1; aspect-ratio: 16 / 9; }
.hp2, .hp3 { aspect-ratio: 4 / 3; }

.page-hero { padding: calc(var(--head-h) + 56px) 0 56px; }
.page-hero .hero-lead { margin-bottom: 28px; }

/* sections */
.section { padding: 88px 0; }
.section-alt { background: var(--bg-alt); }
.sec-head { margin: 0 0 32px; }
.sec-head h2 { font-size: clamp(1.45rem, 2.4vw, 1.85rem); letter-spacing: .05em; }
.sec-head p { color: var(--muted); margin: 8px 0 0; font-size: .95rem; }
.center-cta { margin: 36px 0 0; }

/* services: plain rows */
.svc-grid { border-top: 1px solid var(--line); }
.svc { display: grid; grid-template-columns: 260px 1fr; gap: 40px; padding: 34px 0; border-bottom: 1px solid var(--line); }
.svc h3 { font-size: 1.2rem; }
.svc h3::before { content: ""; display: inline-block; width: 4px; height: 1.05em; background: var(--red); margin-right: 12px; vertical-align: -2px; }
.svc-body p { margin: 0 0 10px; }
.svc ul { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 4px 24px; font-size: .92rem; color: var(--muted); }
.svc li::before { content: "・"; }
.svc-more { display: inline-block; margin-top: 12px; color: var(--red); font-weight: 700; }

/* about */
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.why-item h3 { font-size: 1.08rem; margin-bottom: 8px; }
.why-item p { margin: 0; font-size: .95rem; }

/* steps */
.flow { list-style: none; padding: 0; margin: 0; counter-reset: step; border-top: 1px solid var(--line); }
.flow li { display: grid; grid-template-columns: 56px 220px 1fr; gap: 16px; align-items: baseline; padding: 20px 0; border-bottom: 1px solid var(--line); }
.flow-no { font-size: 1.3rem; color: var(--red); font-weight: 700; }
.flow h3 { font-size: 1.02rem; }
.flow p { margin: 0; color: var(--text); font-size: .95rem; }

/* company */
.co-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: start; }
.co-table { width: 100%; border-collapse: collapse; border-top: 1px solid var(--line); }
.co-table th, .co-table td { text-align: left; padding: 16px 8px; border-bottom: 1px solid var(--line); vertical-align: top; font-size: .95rem; }
.co-table th { width: 30%; font-weight: 700; color: var(--ink); }
.co-table a { color: var(--red); }
.map { min-height: 400px; margin-top: 76px; background: #e9e9e6; }
.map iframe { width: 100%; height: 100%; min-height: 400px; border: 0; display: block; }
.map { background: none; }
.map iframe { background: #e9e9e6; }
.map-link { display: inline-block; margin-top: 10px; font-size: .9rem; color: var(--red); }

/* contact */
.ct-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 56px; align-items: start; }
.ct-card { display: block; text-decoration: none; padding: 16px 0; border-bottom: 1px solid var(--line); }
.ct-card:first-of-type { border-top: 1px solid var(--line); }
.ct-label { display: block; font-size: .82rem; color: var(--muted); }
.ct-value { display: block; font-size: 1.45rem; font-weight: 700; color: var(--ink); letter-spacing: .04em; }
.ct-card:hover .ct-value { color: var(--red); }
.ct-email { font-size: 1.05rem; word-break: break-all; }
.ct-wa .ct-value { color: var(--green); font-size: 1.05rem; }
.form { background: var(--bg-alt); padding: 36px; }
.form label { display: block; font-weight: 700; font-size: .92rem; margin-bottom: 18px; color: var(--ink); }
.form input, .form select, .form textarea, .sim select {
  display: block; width: 100%; margin-top: 6px; padding: 12px 14px; font: inherit; font-weight: 400;
  border: 1px solid #c9c9c9; border-radius: 0; background: #fff; color: var(--text);
}
.form input:focus, .form select:focus, .form textarea:focus, .sim select:focus { outline: 2px solid rgba(183, 28, 43, .25); border-color: var(--red); }
.form .invalid { border-color: var(--red); background: #fff7f7; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.req, .opt { font-size: .75rem; margin-left: 6px; font-weight: 400; }
.req { color: var(--red); }
.opt { color: var(--muted); }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-status { margin: 14px 0 0; font-weight: 700; min-height: 1.5em; }
.form-status.ok { color: var(--green); }
.form-status.ng { color: var(--red); }

/* shaken: price guide */
.price-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border: 1px solid var(--line); background: #fff; }
.price-card { padding: 26px 22px; border-right: 1px solid var(--line); }
.price-card:last-child { border-right: 0; }
.price-card h3 { font-size: 1.12rem; }
.price-note { margin: 0 0 12px; font-size: .82rem; color: var(--muted); }
.price-total { margin: 0 0 14px; padding: 10px 0 12px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); color: var(--ink); }
.price-total span { display: block; font-size: .8rem; color: var(--muted); }
.price-total strong { font-size: 2rem; color: var(--red); letter-spacing: .02em; }
.price-rows, .sim-result dl { display: grid; grid-template-columns: 1fr auto; gap: 3px 12px; margin: 0; font-size: .9rem; }
.price-rows dt, .sim-result dt { color: var(--ink); }
.price-rows dd, .sim-result dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; }
.price-rows .sub, .sim-result .sub { color: var(--muted); font-size: .84rem; }
.price-rows dt.sub, .sim-result dt.sub { padding-left: 1em; }

/* shaken: simulator */
.sim { display: grid; grid-template-columns: 1.3fr .7fr; gap: 32px; align-items: start; }
.sim-form { border-top: 1px solid var(--line); }
.sim-form fieldset { border: 0; border-bottom: 1px solid var(--line); padding: 22px 0; margin: 0; }
.sim-form legend { float: left; width: 100%; font-weight: 700; color: var(--ink); margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
.sim-form legend + * { clear: both; }
.q-no { color: var(--red); font-weight: 700; }
.q-no::after { content: "."; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips-col { display: grid; grid-template-columns: 1fr 1fr; }
.chip { position: relative; cursor: pointer; }
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip span { display: block; padding: 9px 16px; border: 1px solid #c9c9c9; background: #fff; transition: border-color .15s, background .15s; }
.chip span:hover { border-color: var(--ink); }
.chip input:checked + span { border-color: var(--red); background: #fbeff0; color: var(--red-dark); font-weight: 700; }
.chip input:focus-visible + span { outline: 2px solid rgba(183, 28, 43, .35); }
.sim select { margin-top: 0; }
.sim-result { position: sticky; top: calc(var(--head-h) + 20px); background: var(--bg-alt); padding: 26px; border-top: 3px solid var(--red); }
.sim-result h3 { font-size: 1.08rem; margin-bottom: 14px; }
.sim-result dt.grp, .sim-result dd.grp { margin-top: 8px; font-weight: 700; }
.sim-total { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; margin: 16px 0 18px; padding-top: 14px; border-top: 1px solid var(--line); }
.sim-total span { font-weight: 700; color: var(--ink); }
.sim-total strong { font-size: 1.9rem; color: var(--red); line-height: 1.2; white-space: nowrap; }
.sim-note { font-size: .78rem; color: var(--muted); margin: 14px 0 0; line-height: 1.7; }

/* shaken: cost / checklist / faq */
.cost-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.cost-tag { margin: 0 0 4px; font-size: .85rem; color: var(--red); }
.cost-card h3 { font-size: 1.12rem; margin-bottom: 6px; }
.cost-card p:last-child { margin: 0; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.check-list { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); }
.check-list li { padding: 14px 0 14px 1.4em; position: relative; border-bottom: 1px solid var(--line); }
.check-list li::before { content: "・"; position: absolute; left: 0; }
.faq-item { border-bottom: 1px solid var(--line); }
.two-col .sec-head + .faq-item { border-top: 1px solid var(--line); }
.faq-item summary { cursor: pointer; list-style: none; padding: 16px 36px 16px 0; font-weight: 700; color: var(--ink); position: relative; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; position: absolute; right: 4px; top: 14px; font-size: 1.3rem; color: var(--muted); font-weight: 400; }
.faq-item[open] summary::after { content: "−"; }
.faq-item p { margin: 0; padding: 0 0 18px; }

/* CTA band */
.cta-band { background: #2b2b2b; color: #fff; padding: 56px 0; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.cta-band h2 { color: #fff; font-size: clamp(1.35rem, 2.2vw, 1.7rem); }
.cta-band p { margin: 4px 0 0; color: rgba(255, 255, 255, .8); }
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* footer */
.footer { background: var(--bg-alt); color: var(--muted); padding: 48px 0 28px; border-top: 1px solid var(--line); }
.footer-inner { display: flex; flex-direction: column; align-items: center; gap: 16px; text-align: center; }
.footer-logo { height: 56px; width: auto; }
.footer-nav { list-style: none; display: flex; flex-wrap: wrap; justify-content: center; gap: 6px 26px; margin: 0; padding: 0; }
.footer-nav a { text-decoration: none; color: var(--ink); font-size: .9rem; }
.footer-nav a:hover { color: var(--red); }
.footer-addr { margin: 0; font-size: .86rem; }
.footer-addr a { color: var(--ink); text-decoration: none; }
.copy { font-size: .78rem; margin: 0; }

/* whatsapp float */
.wa-float {
  position: fixed; right: 18px; bottom: 18px; z-index: 40; width: 52px; height: 52px; border-radius: 50%;
  background: #25d366; color: #fff; display: grid; place-items: center; box-shadow: 0 4px 12px rgba(0, 0, 0, .18);
}
.wa-float svg { width: 28px; height: 28px; }

/* responsive */
@media (max-width: 1000px) {
  .price-grid { grid-template-columns: repeat(2, 1fr); }
  .price-card:nth-child(2) { border-right: 0; }
  .price-card:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}
@media (max-width: 960px) {
  :root { --head-h: 62px; }
  .brand img { height: 40px; }
  .menu-btn { display: block; }
  .nav {
    position: fixed; top: var(--head-h); left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; padding: 6px 20px 24px; border-bottom: 1px solid var(--line);
    transform: translateY(-120%); visibility: hidden; transition: transform .3s, visibility .3s;
  }
  .nav.open { transform: none; visibility: visible; }
  .nav ul { flex-direction: column; gap: 0; }
  .nav ul a { display: block; padding: 13px 2px; border-bottom: 1px solid var(--line); }
  .audience-switch { align-self: flex-start; margin: 14px 0; }
  .hero { padding: calc(var(--head-h) + 40px) 0 56px; }
  .hero-inner { grid-template-columns: 1fr; gap: 36px; }
  .page-hero { padding: calc(var(--head-h) + 36px) 0 44px; }
  .svc { grid-template-columns: 1fr; gap: 10px; padding: 26px 0; }
  .why-grid { grid-template-columns: 1fr; gap: 26px; }
  .co-grid, .ct-grid, .two-col, .sim { grid-template-columns: 1fr; gap: 40px; }
  .sim { gap: 28px; }
  .sim-result { position: static; }
  .map { margin-top: 0; min-height: 300px; }
  .map iframe { min-height: 300px; }
  .flow li { grid-template-columns: 40px 1fr; }
  .flow li p { grid-column: 2; }
}
@media (max-width: 640px) {
  .section { padding: 64px 0; }
  .price-grid { grid-template-columns: 1fr; }
  .price-card { border-right: 0; border-bottom: 1px solid var(--line); }
  .price-card:last-child { border-bottom: 0; }
  .cost-grid { grid-template-columns: 1fr; gap: 26px; }
  .chips-col { grid-template-columns: 1fr; }
  .sim-result { padding: 22px 18px; }
  .row2 { grid-template-columns: 1fr; gap: 0; }
  .form { padding: 24px 18px; }
  .co-table th, .co-table td { display: block; width: 100%; }
  .co-table th { padding-bottom: 0; border-bottom: 0; }
  .co-table td { padding-top: 2px; }
  .hero-actions .btn, .cta-actions .btn { flex: 1 1 100%; }
}

/* access (inside company section) */
.access h3 { font-size: 1.15rem; margin-bottom: 12px; }
.access-img { display: block; border: 1px solid var(--line); background: #fff; }
.access-img img { width: 100%; height: auto; }
.access p { margin: 12px 0 0; font-size: .95rem; }

/* WhatsApp / LINE contact */
.msg-buttons { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; max-width: 760px; }
.msg-btn { display: flex; align-items: center; justify-content: center; gap: 12px; padding: 22px 24px; color: #fff; text-decoration: none; font-size: 1.15rem; font-weight: 700; letter-spacing: .04em; }
.msg-btn svg { width: 30px; height: 30px; flex: none; }
.msg-wa { background: #1fa855; }
.msg-wa:hover { background: #188a45; }
.msg-line { background: #06c755; }
.msg-line:hover { background: #05a647; }
.ct-sub { margin: 22px 0 0; color: var(--muted); font-size: .92rem; }
.ct-sub a { color: var(--ink); }
.btn-wa { background: #1fa855; border-color: #1fa855; color: #fff; }
.btn-wa:hover { background: #188a45; border-color: #188a45; }
.btn-wa svg, .btn-line svg { width: 20px; height: 20px; }
.ask-label { margin: 0 0 8px; font-weight: 700; font-size: .92rem; color: var(--ink); }
.ask-buttons { display: grid; gap: 8px; }
.ask-center { max-width: 320px; margin: 16px auto 0; }

/* stock list */
.stock-filter { display: flex; flex-wrap: wrap; gap: 12px 18px; align-items: flex-end; padding: 18px 20px; background: var(--bg-alt); margin-bottom: 18px; }
.stock-filter label { font-weight: 700; font-size: .88rem; color: var(--ink); }
.stock-filter .grow { flex: 1 1 220px; }
.stock-filter select, .stock-filter input { display: block; margin-top: 4px; padding: 9px 12px; font: inherit; font-weight: 400; border: 1px solid #c9c9c9; background: #fff; min-width: 160px; width: 100%; height: 42px; }
.stock-count { margin: 0 0 14px; color: var(--muted); font-size: .9rem; }
.stock-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.stock-card { border: 1px solid var(--line); background: #fff; }
.stock-card.is-sold { opacity: .6; }
.stock-open { all: unset; display: block; width: 100%; cursor: pointer; box-sizing: border-box; }
.stock-open:hover h3 { color: var(--red); }
.stock-open:focus-visible { outline: 2px solid var(--red); }
.stock-img { position: relative; aspect-ratio: 4 / 3; background: #eee; }
.stock-img img { width: 100%; height: 100%; object-fit: cover; }
.no-photo { display: grid; place-items: center; width: 100%; height: 100%; color: var(--muted); font-size: .9rem; background: #eee; aspect-ratio: 4 / 3; }
.stock-status { display: inline-block; padding: 2px 10px; font-size: .8rem; font-weight: 700; color: #fff; }
.stock-img .stock-status { position: absolute; left: 0; top: 0; }
.st-sale { background: var(--green); } .st-nego { background: #b26a00; } .st-sold { background: #777; }
.stock-body { padding: 16px 18px 18px; }
.stock-cat { margin: 0; font-size: .82rem; color: var(--muted); }
.stock-body h3 { font-size: 1.1rem; margin: 2px 0 6px; }
.stock-spec { margin: 0 0 10px; font-size: .88rem; color: var(--text); }
.stock-facts { display: grid; grid-template-columns: auto 1fr; gap: 2px 14px; margin: 0; padding-top: 10px; border-top: 1px solid var(--line); font-size: .9rem; }
.stock-facts dt { color: var(--muted); }
.stock-facts dd { margin: 0; text-align: right; font-weight: 700; color: var(--ink); }
.stock-facts dd:last-child { color: var(--red); }
.stock-empty { padding: 40px; background: var(--bg-alt); text-align: center; }
.stock-empty p { margin: 0 0 8px; }
.stock-empty .btn { margin-top: 12px; }

/* stock detail dialog */
.stock-dialog { width: min(980px, 100% - 24px); max-height: calc(100% - 24px); padding: 0; border: 0; overflow: auto; }
.stock-dialog::backdrop { background: rgba(0, 0, 0, .55); }
.dlg-close { position: sticky; top: 0; float: right; z-index: 2; width: 44px; height: 44px; border: 0; background: #fff; font-size: 1.6rem; cursor: pointer; }
.dlg-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 28px; padding: 28px; }
.dlg-main { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; background: #eee; }
.dlg-thumbs { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.dlg-thumbs button { padding: 0; border: 1px solid var(--line); background: none; cursor: pointer; }
.dlg-thumbs img { width: 72px; height: 54px; object-fit: cover; display: block; }
.dlg-grid h2 { font-size: 1.4rem; margin: 8px 0 14px; }
.dlg-table { width: 100%; border-collapse: collapse; border-top: 1px solid var(--line); margin-bottom: 16px; }
.dlg-table th, .dlg-table td { text-align: left; padding: 9px 4px; border-bottom: 1px solid var(--line); font-size: .92rem; vertical-align: top; }
.dlg-table th { width: 34%; color: var(--muted); font-weight: 400; }
.dlg-note { font-size: .92rem; margin: 0 0 18px; }
.dlg-id { font-size: .8rem; color: var(--muted); margin: 10px 0 0; }

@media (max-width: 960px) {
  .stock-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .dlg-grid { grid-template-columns: 1fr; padding: 18px; }
}
@media (max-width: 560px) {
  .stock-grid { grid-template-columns: 1fr; }
}

/* LINE */
.btn-line { background: #06c755; border-color: #06c755; color: #fff; }
.btn-line:hover { background: #05a647; border-color: #05a647; }
.btn-line svg { width: 20px; height: 20px; }
.ct-line .ct-value { color: #06a046; font-size: 1.05rem; }
.line-float { background: #06c755; }