:root {
  --ink: #172129;
  --muted: #5f6c75;
  --line: #dfe6ea;
  --blue-soft: #edf6fa;
  --blue: #16749a;
  --blue-dark: #123f54;
  --green: #38a968;
  --white: #fff;
  --container: 1080px;
  --radius: 16px;
  --shadow: 0 14px 40px rgba(23, 33, 41, .08);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scrollbar-gutter: stable; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "Noto Sans JP", "Yu Gothic", "Hiragino Kaku Gothic ProN", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  overflow-wrap: anywhere;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
a:focus-visible { outline: 3px solid #005bac; outline-offset: 4px; }
.hero a:focus-visible, .site-footer a:focus-visible { outline-color: #efb340; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
h1, h2, h3, p { margin-top: 0; }
.container { width: min(calc(100% - clamp(32px, 7vw, 96px)), var(--container)); margin-inline: auto; }
.section { padding-block: clamp(72px, 10vw, 120px); }
.section-heading { max-width: 680px; margin-bottom: clamp(32px, 5vw, 52px); }
.section-heading h2 {
  margin-bottom: 12px;
  font-size: clamp(1.75rem, 3.6vw, 2.55rem);
  line-height: 1.3;
  letter-spacing: .03em;
}
.section-heading > p:last-child { color: var(--muted); }
.section-kicker, .eyebrow {
  margin-bottom: 8px;
  color: var(--blue);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .18em;
}

.site-header {
  position: relative;
  z-index: 10;
  min-height: 72px;
  background: var(--white);
  border-bottom: 1px solid var(--line);
}
.header-inner { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.site-name { font-weight: 700; text-decoration: none; letter-spacing: .04em; }

.hero { position: relative; min-height: clamp(500px, 72vw, 760px); display: grid; align-items: end; overflow: hidden; color: var(--white); background: #1b2b2d; }
.hero-picture, .hero-image, .hero-shade { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-image { object-fit: cover; object-position: center; }
.hero-shade { background: linear-gradient(90deg, rgba(9, 21, 25, .82) 0%, rgba(9, 21, 25, .48) 50%, rgba(9, 21, 25, .15) 100%), linear-gradient(0deg, rgba(9, 21, 25, .55), transparent 52%); }
.hero-content { position: relative; z-index: 1; padding-bottom: clamp(52px, 9vw, 96px); }
.hero .eyebrow { color: #9ce0b5; }
.hero h1 { max-width: 740px; margin-bottom: 12px; font-size: clamp(2.4rem, 7vw, 5rem); line-height: 1.1; letter-spacing: .04em; }
.hero-copy { max-width: 620px; margin-bottom: 0; font-size: clamp(.95rem, 2vw, 1.1rem); }
.booking-button { display: inline-flex; min-height: 52px; align-items: center; justify-content: center; margin-top: 28px; padding: 10px 48px; border-radius: 6px; color: var(--white); background: #0073d9; font-weight: 700; text-decoration: none; transition: background-color .2s; }
.booking-button:hover { background: #005bac; }

.price-section { background: var(--blue-soft); }
.price-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); grid-template-rows: repeat(2, minmax(0, 1fr)); grid-auto-flow: column; gap: 10px; }
.price-card { position: relative; min-width: 0; padding: 16px 18px; background: var(--white); border: 1px solid #d4e3e9; border-radius: var(--radius); box-shadow: 0 8px 24px rgba(18, 63, 84, .05); }
.price-card-holiday { border: 2px solid #d9899a; }
.price-card-holiday .holiday-label { color: #b3263e; }
.price-card h3 { margin-bottom: 8px; font-size: 1.05rem; }
.price-label { margin-bottom: 4px; color: var(--muted); font-size: .78rem; font-weight: 700; }
.price { margin-bottom: 3px; font-size: clamp(1.55rem, 2.5vw, 2.15rem); font-weight: 700; line-height: 1.25; white-space: nowrap; }
.price small { font-size: .7em; }
.tax { margin-bottom: 0; color: var(--muted); font-size: .8rem; white-space: nowrap; }
.price-minimum-note, .price-pack-note { margin: 18px 0 0; color: var(--muted); font-size: .9rem; }
.price-pack-note { margin-top: 4px; }
.price-night { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 28px; margin-top: 14px; padding: 14px 18px; background: var(--white); border: 1px solid #d4e3e9; border-radius: var(--radius); }
.price-night h3 { margin: 0; font-size: 1.05rem; }
.price-night h3 span { display: block; color: var(--muted); font-size: .78rem; font-weight: 700; }
.price-night dl { display: flex; flex-wrap: wrap; gap: 4px 28px; margin: 0; }
.price-night dl div { display: flex; align-items: baseline; gap: 10px; }
.price-night dt { color: var(--muted); font-size: .85rem; font-weight: 700; }
.price-night-holiday dt { color: #b3263e; }
.price-night dd { margin: 0; font-size: 1.35rem; font-weight: 700; white-space: nowrap; }
.price-night dd small { font-size: .7em; }
.price-night .tax { margin-left: auto; }

.spec-card { display: grid; grid-template-columns: minmax(220px, .8fr) minmax(0, 1.2fr); gap: 24px; align-items: center; padding: 18px; border: 1px solid #24643f; border-radius: var(--radius); color: var(--white); background: #24643f; }
.spec-image { width: 100%; height: 210px; border-radius: 10px; object-fit: cover; object-position: center; }
.spec-details { min-width: 0; }
.spec-card-heading h3 { margin: 0; color: var(--white); font-size: clamp(1.75rem, 3.6vw, 2.55rem); line-height: 1.3; letter-spacing: .03em; }
.spec-dimensions { display: flex; flex-wrap: wrap; gap: 8px 24px; margin: 16px 0 0; padding-top: 12px; border-top: 1px solid rgba(255, 255, 255, .2); }
.spec-dimensions div { display: flex; gap: 6px; white-space: nowrap; }
.spec-dimensions dt { color: #c9ead6; font-size: .8rem; }
.spec-dimensions dd { margin: 0; font-size: .88rem; font-weight: 600; }
.spec-network { margin-top: 16px; gap: clamp(20px, 4vw, 40px); padding: clamp(20px, 4vw, 40px); border-color: var(--blue-dark); background: var(--blue-dark); }
.section-kicker-light { color: #8fd9f7; }
.spec-network h3 { margin: 0; color: #8fd9f7; font-size: clamp(1.75rem, 3.6vw, 2.55rem); line-height: 1.3; letter-spacing: .03em; }
.network-name { margin: 0; color: var(--white); font-size: clamp(1.75rem, 3.6vw, 2.55rem); font-weight: 700; line-height: 1.3; letter-spacing: .03em; }
.network-caveat { margin: 16px 0 0; padding-top: 12px; border-top: 1px solid rgba(255, 255, 255, .2); font-size: .88rem; }

.equipment-section { background: #f5f7f8; }
.equipment-notice { margin: -16px 0 32px; padding: 20px 24px; color: #614a20; background: #fff8e8; border: 1px solid #ead8aa; border-radius: 12px; }
.equipment-notice strong { display: block; margin-bottom: 6px; }
.equipment-notice p { margin: 0; font-size: .9rem; }
.equipment-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.equipment-card { min-width: 0; min-height: 122px; display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 12px; align-items: center; padding: 12px; background: var(--white); border: 1px solid var(--line); border-radius: 12px; }
.equipment-card > img, .equipment-gallery { width: 96px; height: 96px; border-radius: 8px; overflow: hidden; }
.equipment-card > img { object-fit: cover; }
.equipment-gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 3px; background: #e7ecef; }
.equipment-gallery-three img:first-child { grid-column: span 2; }
.equipment-gallery img { width: 100%; height: 100%; min-height: 0; object-fit: cover; }
.equipment-category { margin-bottom: 4px; color: var(--blue); font-size: .72rem; font-weight: 700; letter-spacing: .06em; }
.equipment-card h3 { margin-bottom: 2px; font-size: .88rem; line-height: 1.45; }
.equipment-card h3 span, .quantity { color: var(--muted); font-size: .8rem; font-weight: 500; }
.quantity { margin-bottom: 0; }

.feature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.feature-grid article { padding: 26px 22px; border-top: 3px solid var(--green); background: var(--white); box-shadow: var(--shadow); }
.feature-number { margin-bottom: 18px; color: #1f7a47; font-size: .8rem; font-weight: 700; letter-spacing: .12em; }
.feature-grid h3 { margin-bottom: 12px; font-size: 1.05rem; }
.feature-grid article > p:last-child { margin-bottom: 0; color: var(--muted); font-size: .9rem; }

.conditions-section { background: #fff; }
.condition-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.condition-card { padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: #f8fafb; }
.condition-card h3 { margin-bottom: 18px; font-size: 1.1rem; }
.condition-card ul { margin: 0; padding-left: 1.25em; }
.condition-card li + li { margin-top: 8px; }
.condition-subhead { margin: 0 0 6px; font-size: .9rem; font-weight: 700; }
.condition-card ul + .condition-subhead { margin-top: 18px; }
.condition-card dl { margin: 0; }
.condition-card dl div { display: grid; grid-template-columns: 100px minmax(0, 1fr); gap: 16px; padding-block: 12px; border-bottom: 1px solid var(--line); }
.condition-card dl div:first-child { padding-top: 0; }
.condition-card dl div:last-child { padding-bottom: 0; border-bottom: 0; }
.condition-card dt { color: var(--muted); font-size: .85rem; font-weight: 700; }
.condition-card dd { margin: 0; font-weight: 500; }
.cancellation-box { display: grid; grid-template-columns: minmax(220px, .7fr) minmax(0, 1.3fr); gap: 40px; margin-top: 28px; padding: 30px; color: var(--white); background: var(--blue-dark); border-radius: var(--radius); }
.cancellation-box h3 { margin: 0; font-size: 1.35rem; }
.cancellation-box .section-kicker { color: #8fd9f7; }
.cancellation-box dl { margin: 0; }
.cancellation-box dl div { display: flex; justify-content: space-between; gap: 20px; padding: 10px 0; border-bottom: 1px solid rgba(255, 255, 255, .18); }
.cancellation-box dl div:last-child { border-bottom: 0; }
.cancellation-box dt, .cancellation-box dd { margin: 0; }
.cancellation-box dd { font-weight: 700; }
.cancellation-date-guide { grid-column: 1 / -1; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.25); }
.cancellation-date-guide h4 { margin: 0 0 10px; font-size: 1.05rem; }
.cancellation-date-guide > p { margin: 0 0 16px; font-size: .9rem; line-height: 1.8; }
.cancellation-timeline { margin: 0 0 12px; padding: 8px 20px; color: #123f54; background: #eff7fb; border-radius: 8px; }
.cancellation-timeline figcaption { margin-bottom: 4px; font-size: .9rem; line-height: 1.7; }
.cancellation-periods { display: grid; grid-template-columns: 24fr 15fr; }
.cancellation-periods > span { padding: 2px 4px; text-align: center; font-size: .9rem; font-weight: 700; }
.cancellation-markers { position: relative; height: 2.3em; border-bottom: 2px solid #123f54; font-size: .9rem; line-height: 1.4; }
.cancellation-markers > span { position: absolute; bottom: .5em; white-space: nowrap; }
.cancellation-markers > span::after { content: ""; position: absolute; bottom: calc(-.5em - 7px); height: 12px; border-left: 2px solid #123f54; }
.cancellation-marker-start::after { left: 0; }
.cancellation-marker-day::after { left: 50%; }
.cancellation-marker-booking::after { right: 0; }
.cancellation-marker-start { left: 0; text-align: left; }
.cancellation-marker-day { left: 61.5385%; transform: translateX(-50%); text-align: center; }
.cancellation-marker-booking { right: 0; text-align: right; }
.cancellation-booking-label { padding-top: 4px; text-align: right; font-size: .85rem; font-weight: 700; line-height: 1.3; }
.cancellation-date-guide .cancellation-example { margin-bottom: 0; }
@media (max-width: 640px) { .cancellation-timeline { padding: 8px 12px; } .cancellation-periods > span, .cancellation-markers { font-size: 14px; } }
@media (max-width: 390px) { .cancellation-markers { height: 3.6em; } .cancellation-markers strong { display: block; } }

.booking-section { background: #f5f7f8; }
.booking-frame-wrap { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: var(--shadow); }
.booking-frame-wrap iframe { display: block; width: 100%; height: 760px; border: 0; }
.booking-fallback { margin: 18px 0 0; color: var(--muted); font-size: .9rem; }
.booking-fallback a { color: var(--blue-dark); font-weight: 700; text-underline-offset: 3px; }

.location-section { background: var(--blue-soft); }
.location-grid { display: grid; grid-template-columns: minmax(260px, .8fr) minmax(0, 1.2fr); column-gap: clamp(36px, 9vw, 100px); row-gap: 32px; }
.location-grid .section-heading { margin-bottom: 0; }
.location-list { margin: 0; }
.location-list div { display: grid; grid-template-columns: 92px minmax(0, 1fr); padding-block: 22px; border-bottom: 1px solid #cbdde4; }
.location-list div:first-child { padding-top: 0; }
.location-list dt { color: var(--muted); font-size: .88rem; font-weight: 700; }
.location-list dd { margin: 0; font-weight: 500; }
.location-map { grid-column: 1 / -1; height: 420px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: var(--shadow); }
.location-map iframe { display: block; width: 100%; height: 100%; border: 0; }

.site-footer { padding-block: 42px; color: #d9e3e7; background: #111a20; }
.site-footer .container { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.site-footer p, .site-footer small { margin: 0; }

@media (max-width: 900px) {
  .price-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); grid-template-rows: none; grid-auto-flow: row; }
  .equipment-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .condition-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  body { font-size: 15px; }
  .container { width: min(calc(100% - 32px), var(--container)); }
  .site-header, .header-inner { min-height: 66px; }
  .site-name { font-size: .92rem; }
  .hero { min-height: 580px; }
  .hero-image { object-position: 56% center; }
  .hero-shade { background: linear-gradient(0deg, rgba(9, 21, 25, .82), rgba(9, 21, 25, .18) 80%); }
  .location-grid { grid-template-columns: 1fr; }
  .price-grid { grid-template-columns: 1fr; }
  .price-card { display: grid; grid-template-columns: 1fr auto; align-items: end; column-gap: 16px; padding: 12px 16px; }
  .price-card .price-label { grid-column: 1 / -1; justify-self: start; }
  .price-card h3 { margin-bottom: 0; align-self: center; }
  .price-card .price { text-align: right; }
  .price-card .tax { grid-column: 2; text-align: right; }
  .spec-card { grid-template-columns: 1fr; gap: 16px; padding: 14px; }
  .spec-image { height: auto; aspect-ratio: 16 / 9; }
  .spec-dimensions { gap: 6px 18px; }
  .equipment-list { grid-template-columns: 1fr; gap: 10px; }
  .equipment-card { grid-template-columns: 92px minmax(0, 1fr); min-height: 112px; padding: 10px; }
  .equipment-card > img, .equipment-gallery { width: 92px; height: 92px; }
  .feature-grid { grid-template-columns: 1fr; }
  .cancellation-box { grid-template-columns: 1fr; gap: 20px; }
  .booking-frame-wrap iframe { height: 860px; }
  .location-list div { grid-template-columns: 72px minmax(0, 1fr); }
  .location-map { height: 320px; }
  .site-footer .container { align-items: flex-start; flex-direction: column; gap: 8px; }
}

@media (max-width: 390px) {
  .header-inner { gap: 10px; }
  .site-name { font-size: .82rem; }
}

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

.contact-section { background: var(--white); padding-bottom: 32px; }
.contact-note { margin: 0; color: var(--muted); font-size: .9rem; line-height: 1.6; }
.contact-note a { color: var(--blue-dark); overflow-wrap: anywhere; text-underline-offset: 3px; }
.contact-frame-wrap { overflow: hidden; margin-top: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--blue-soft); }
.contact-frame-wrap iframe { display: block; width: 100%; height: 780px; border: 0; }
@media (max-width: 640px) {
  .contact-frame-wrap iframe { height: 800px; }
}
@media (max-width: 480px) {
  .contact-frame-wrap iframe { height: 850px; }
}
@media (max-width: 320px) {
  .contact-frame-wrap iframe { height: 860px; }
}