:root {
  --text: #a2837f;
  --bg: #ffffff;
  --gold: #bfa37e;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Zen Kaku Gothic New', 'Hiragino Maru Gothic ProN', 'Hiragino Maru Gothic Pro', 'Hiragino Sans', 'Yu Gothic', 'Meiryo', sans-serif;
  overflow-x: hidden;
}

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: 1.5s ease;
}
.fade-in.active { opacity: 1; transform: translateY(0); }

header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  padding: 2rem 4rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #fff;
  mix-blend-mode: difference;
  box-sizing: border-box;
}
.logo {
  font-size: 1.8rem;
  letter-spacing: 0.2em;
}

.hero {
  height: 100vh;
  position: relative;
  overflow: hidden;
  background: #ffffff;
}
.slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transform: scale(1.1);
  transition: transform 6s linear, opacity 2s ease;
}
.slide.active { opacity: 1; transform: scale(1); }

.scroll-indicator {
  position: absolute;
  left: 50%;
  bottom: 3.5rem;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  color: #fff;
  letter-spacing: 0.3em;
  font-size: 0.75rem;
  text-transform: uppercase;
  z-index: 15;
  opacity: 1;
  transition: opacity 0.6s ease, transform 0.6s ease;
  pointer-events: none;
  mix-blend-mode: difference;
}
.scroll-indicator.hidden {
  opacity: 0;
  transform: translateX(-50%) translateY(10px);
}
.scroll-arrow {
  display: inline-block;
  font-size: 1.4rem;
  animation: scroll-bounce 1.6s ease-in-out infinite;
}
@keyframes scroll-bounce {
  0%, 100% { transform: translateY(0); opacity: 0.6; }
  50% { transform: translateY(8px); opacity: 1; }
}

.hero-txt {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: #fff;
  z-index: 10;
  width: 100%;
}
.h-title {
  font-size: 4rem;
  margin: 0;
  letter-spacing: 0.2em;
  font-weight: 400;
  text-shadow: 0 0 20px rgba(0,0,0,0.3);
  line-height: 1.2;
}
.h-sub {
  font-size: 1rem;
  margin-top: 2rem;
  letter-spacing: 0.5em;
  display: block;
}

.content {
  max-width: 1000px;
  margin: 0 auto;
  padding: 10rem 2rem 5rem;
  text-align: center;
}
.lead-head {
  font-family: 'Zen Kaku Gothic New', 'Hiragino Maru Gothic ProN', 'Hiragino Maru Gothic Pro', 'Hiragino Sans', 'Yu Gothic', 'Meiryo', sans-serif;
  font-size: 1.4rem;
  letter-spacing: 0.08em;
  color: #a2837f;
  margin-top: -1rem;
  margin-bottom: 2rem;
  font-weight: 500;
}
.lead-p {
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 4.5rem;
  color: #a2837f;
  font-weight: 400;
}

.sub-feature {
  margin: 0 auto 10rem;
  max-width: 1000px;
  text-align: center;
}
.sub-feature:last-child { margin-bottom: 5rem; }

.sub-row {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: 3rem;
  align-items: center;
}
.sub-img-wrap {
  flex: 1;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  position: relative;
  background: #ffffff;
}
.sub-img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  transition: transform 0.1s linear;
  will-change: transform;
}
.sub-feature:hover .sub-img:not(.parallax-target) { transform: scale(1.02); }

.sub-txt-wrap {
  text-align: center;
}

.sub-title {
  font-size: 1.8rem;
  color: #a2837f;
  margin-bottom: 3rem;
  letter-spacing: 0.18em;
  width: 100%;
  display: block;
  font-weight: 300;
}
.sub-desc {
  font-size: 1rem;
  line-height: 2.2;
  color: #a2837f;
  text-align: center;
}

.section-btn {
  display: inline-block;
  margin-top: 3rem;
  padding: 1rem 4rem;
  border: 1px solid var(--text);
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.1em;
  transition: 0.3s;
  background: #b6a6a4;
  color: #fff;
  border-radius: 999px;
}
.section-btn:hover {
  background: #a2837f;
}

.room-sec { padding: 5rem 0; }
.room-item {
  margin: 0 auto 8rem;
  position: relative;
  width: 100%;
  max-width: 1000px;
}
.room-section-title {
  font-size: 1.8rem;
  margin: 0 0 3rem;
  color: #a2837f;
  letter-spacing: 0.18em;
  text-align: center;
  font-weight: 300;
}
.room-main {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: 3rem;
  align-items: center;
}
.room-main-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  position: relative;
  background: #ffffff;
}
.room-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.parallax-target {
  transform: translate3d(0, 0, 0) scale(1.06);
  will-change: transform;
}
.room-img-placeholder {
  position: absolute;
  inset: 0;
  background: radial-gradient(900px 500px at 40% 40%, rgba(191,163,126,0.18), rgba(0,0,0,0) 60%),
              linear-gradient(135deg, rgba(0,0,0,0.06), rgba(0,0,0,0.02));
  display: none;
}
.room-main-text {
  text-align: left;
}
.room-desc {
  font-size: 1rem;
  line-height: 2.2;
  color: #a2837f;
  text-align: center;
}
.room-slider-wrap {
  margin-top: 2.5rem;
  position: relative;
  width: 60%;
  overflow: visible;
  margin-left: auto;
  margin-right: auto;
}
.room-slider {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
}
.room-slider::-webkit-scrollbar { display: none; }
.room-slide {
  flex: 0 0 100%;
  aspect-ratio: 4 / 3;
  background: #ffffff;
  position: relative;
  overflow: hidden;
  scroll-snap-align: start;
}
.room-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.room-slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: #d7d7d7;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: 0.3s;
  font-size: 18px;
  line-height: 1;
  z-index: 2;
}
.room-slider-btn:hover { background: #bdbdbd; }
.room-slider-btn.prev { left: -2.5rem; }
.room-slider-btn.next { right: -2.5rem; }

.btn {
  display: inline-block;
  border-bottom: 1px solid var(--text);
  padding-bottom: 5px;
  margin-top: 1.5rem;
  text-decoration: none;
  color: var(--text);
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: 0.3s;
}
.btn:hover { opacity: 0.6; }

.page-top {
  background: #fff;
  text-align: center;
  padding: 2.5rem 1rem;
  letter-spacing: 0.1em;
}
.page-top-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
  color: #a2837f;
  font-size: 0.9rem;
}
.page-top-btn span {
  font-size: 1rem;
  line-height: 1;
}

.business-overview {
  background: #b6a6a4;
  color: #fff;
  padding: 5rem 2rem;
  text-align: center;
  letter-spacing: 0.1em;
}
.bo-title {
  font-size: 1.5rem;
  color: #fff;
  margin-bottom: 2rem;
}
.bo-info p { margin: 0.8rem 0; font-size: 0.9rem; color: #fff; }
.bo-mail {
  color: #fff;
  text-decoration: none;
  border-bottom: 1px solid #555;
  padding-bottom: 2px;
}

.book-btn {
  background: #a2837f;
  color: #fff;
  padding: 1rem 3rem;
  text-decoration: none;
  transition: background 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}
.sp-only { display: none; }
.book-btn:hover {
  background: #AC9292;
  box-shadow: 0 12px 24px rgba(0,0,0,0.18);
  transform: translateY(-2px);
}
.book-float {
  position: fixed;
  right: 2rem;
  bottom: 2rem;
  z-index: 50;
  box-shadow: 0 10px 20px rgba(0,0,0,0.12);
}

@media (max-width: 768px) {
  header { padding: 1.5rem; }
  .logo { font-size: 1.4rem; }
  .h-title { font-size: 2.5rem; }
  .h-sub { font-size: 0.7rem; }
  .lead-head { font-size: 1.2rem; }
  .lead-p { font-size: 0.95rem; }
  .room-main { grid-template-columns: 1fr; gap: 2rem; }
  .room-section-title { font-size: 1.6rem; margin-bottom: 2rem; }
  .room-slider-wrap { width: 100%; }
  .book-float { right: 1rem; bottom: 1rem; }

  .sub-feature { margin: 3rem auto 6rem; padding: 0 1rem; }
  .sub-row { grid-template-columns: 1fr; gap: 2rem; }
  .sub-title { font-size: 1.6rem; margin-bottom: 2rem; }
  .sub-desc { text-align: center; }
  .sp-only { display: inline; }
}