:root {
  color-scheme: light;
  --bg: #fbf7f7;
  --bg-soft: #fff7f6;
  --panel: rgba(255, 255, 255, 0.7);
  --text: #111827;
  --muted: #4b5563;
  --line: #e5e7eb;
  --primary: #e53935;
  --primary-deep: #b91c1c;
  --accent-strong: #ff3d00;
  --accent: #ff6a00;
  --shadow: 0 16px 40px rgba(16, 24, 40, 0.08);
  --container: 1180px;
  --radius: 16px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  min-height: 100%;
  background: linear-gradient(180deg, #fffdfa 0%, var(--bg) 100%);
}

body {
  margin: 0;
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic",
    system-ui, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #fffdfa 0%, var(--bg) 100%);
  letter-spacing: 0;
  overflow-x: hidden;
  min-height: 100%;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.container {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
}

section[id] {
  scroll-margin-top: 96px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(251, 247, 247, 0.76);
  border-bottom: 1px solid transparent;
  transition: border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.site-header.is-scrolled {
  border-bottom-color: rgba(17, 24, 39, 0.08);
  box-shadow: 0 8px 28px rgba(17, 24, 39, 0.05);
  background: rgba(251, 247, 247, 0.9);
}

.nav {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand__mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent-strong) 100%);
  box-shadow: 0 10px 24px rgba(229, 57, 53, 0.22);
}

.brand__text {
  display: grid;
  gap: 2px;
}

.brand__text strong {
  font-size: 15px;
}

.brand__text small {
  font-size: 12px;
  color: var(--muted);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-nav a {
  color: var(--muted);
  font-size: 14px;
  transition: color 160ms ease;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--text);
}

.nav-cta {
  padding: 12px 18px;
  border-radius: 999px;
  color: #fff !important;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent-strong) 100%);
  box-shadow: 0 12px 28px rgba(229, 57, 53, 0.2);
}

.hero {
  position: relative;
  min-height: calc(100vh - 76px);
  display: flex;
  align-items: center;
  isolation: isolate;
  overflow: hidden;
}

.hero__media,
.hero__overlay {
  position: absolute;
  inset: 0;
}

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  filter: saturate(1.03) contrast(1.04);
}

.hero__overlay {
  background:
    linear-gradient(90deg, rgba(18, 19, 28, 0.8) 0%, rgba(18, 19, 28, 0.42) 48%, rgba(18, 19, 28, 0.1) 100%),
    linear-gradient(180deg, rgba(229, 57, 53, 0.3) 0%, rgba(229, 57, 53, 0.06) 40%, rgba(251, 247, 247, 0.04) 100%);
  mix-blend-mode: multiply;
}

.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.74fr);
  gap: 48px;
  padding: 84px 0 72px;
  color: #fff;
}

.hero__copy {
  align-self: end;
  max-width: 640px;
}

.eyebrow {
  margin: 0 0 14px;
  color: #ffd9d5;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1,
.section h2 {
  margin: 0;
  line-height: 1.06;
  letter-spacing: 0;
}

.hero h1 {
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 800;
}

.lead {
  margin: 22px 0 0;
  max-width: 34rem;
  font-size: clamp(16px, 1.3vw, 19px);
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.9);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 20px;
  border-radius: 14px;
  font-weight: 700;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button--primary {
  color: #fff;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deep) 100%);
  box-shadow: 0 14px 28px rgba(229, 57, 53, 0.22);
}

.button--ghost {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
}

.hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 24px 0 0;
  list-style: none;
}

.hero__chips li {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.07);
  color: rgba(255, 255, 255, 0.95);
  font-size: 14px;
}

.hero__rail {
  align-self: end;
  display: grid;
  gap: 16px;
}

.hero__rail-card,
.hero__rail-item,
.feature,
.intent,
.timeline__item,
.split__list > div,
.faq__item,
.reserve__panel {
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
}

.hero__rail-card {
  padding: 24px;
  border-radius: calc(var(--radius) + 4px);
  background: rgba(17, 24, 39, 0.58);
  color: #fff;
}

.hero__rail-label {
  margin: 0 0 10px;
  color: #ffc9c4;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.hero__rail-card h2 {
  margin: 0;
  font-size: 28px;
  line-height: 1.2;
}

.hero__rail-card p {
  margin: 14px 0 0;
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.8;
}

.hero__rail-list {
  display: grid;
  gap: 10px;
}

.hero__rail-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.75);
}

.hero__rail-item span {
  color: var(--primary-deep);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero__rail-item strong {
  font-size: 14px;
  text-align: right;
}

.section {
  padding: 92px 0;
}

.section--soft {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.32), var(--bg-soft));
}

.section__head {
  display: grid;
  gap: 14px;
  margin-bottom: 30px;
  max-width: 760px;
}

.section__head h2,
.split__copy h2,
.reserve__copy h2 {
  font-size: clamp(28px, 3vw, 44px);
  font-weight: 800;
}

.section__head p,
.split__copy p,
.reserve__copy p {
  margin: 0;
  color: var(--muted);
  line-height: 1.9;
  font-size: 16px;
}

.grid {
  display: grid;
  gap: 18px;
}

.grid--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature,
.intent {
  border-radius: var(--radius);
  padding: 24px;
}

.feature__index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  color: #fff;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--accent-strong));
  margin-bottom: 16px;
}

.feature h3,
.intent h3,
.timeline__item h3 {
  margin: 0;
  font-size: 20px;
  line-height: 1.35;
}

.feature p,
.intent p,
.timeline__item p,
.faq__answer p {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.85;
  font-size: 15px;
}

.intent {
  background: rgba(255, 255, 255, 0.8);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.timeline__item {
  border-radius: var(--radius);
  padding: 22px;
}

.timeline__step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  background: rgba(229, 57, 53, 0.12);
  color: var(--primary-deep);
  font-weight: 800;
  margin-bottom: 14px;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
  gap: 24px;
  align-items: start;
}

.split__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.split__list > div {
  border-radius: 14px;
  padding: 18px;
  font-weight: 700;
  color: var(--text);
}

.split__list--stacked {
  grid-template-columns: 1fr;
}

.split__list--stacked > div {
  display: grid;
  gap: 8px;
}

.split__list--stacked > div strong {
  font-size: 16px;
}

.split__list--stacked > div span {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
  font-weight: 400;
}

.faq {
  display: grid;
  gap: 12px;
}

.faq__item {
  border-radius: var(--radius);
  overflow: hidden;
}

.faq__question {
  width: 100%;
  border: 0;
  padding: 20px 22px;
  text-align: left;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
}

.faq__question::after {
  content: "+";
  width: 30px;
  height: 30px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  background: rgba(229, 57, 53, 0.12);
  color: var(--primary-deep);
  font-size: 18px;
}

.faq__item.is-open .faq__question::after {
  content: "−";
}

.faq__answer {
  padding: 0 22px 20px;
}

.reserve {
  padding-top: 28px;
}

.reserve__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.78fr);
  gap: 22px;
  align-items: start;
  padding: 32px;
  border-radius: calc(var(--radius) + 4px);
  background:
    linear-gradient(135deg, rgba(229, 57, 53, 0.08), rgba(255, 61, 0, 0.08)),
    rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(229, 57, 53, 0.16);
  box-shadow: var(--shadow);
}

.reserve__panel {
  border-radius: var(--radius);
  padding: 22px;
  background: rgba(255, 255, 255, 0.88);
}

.reserve__checklist {
  display: grid;
  gap: 12px;
}

.reserve__checklist > div {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(229, 57, 53, 0.06);
}

.reserve__checklist span {
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
  flex: 0 0 auto;
}

.reserve__checklist strong {
  font-size: 15px;
}

.reserve__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.site-footer {
  padding: 28px 0 36px;
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.5);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
}

.footer__inner strong {
  display: block;
  color: var(--text);
  margin-bottom: 6px;
}

.footer__inner p {
  margin: 0;
}

.footer__inner a {
  color: var(--primary-deep);
  font-weight: 700;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 520ms ease, transform 520ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.feature,
.intent,
.timeline__item,
.split__list > div,
.faq__item,
.reserve__panel {
  border-radius: var(--radius-sm);
}

@media (max-width: 1080px) {
  .hero__inner,
  .reserve__inner,
  .split,
  .timeline {
    grid-template-columns: 1fr;
  }

  .hero__inner {
    gap: 28px;
  }

  .hero__rail {
    max-width: 640px;
  }

  .grid--3 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(calc(100% - 24px), var(--container));
  }

  .nav {
    min-height: auto;
    padding: 14px 0;
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    justify-content: flex-start;
    gap: 10px 14px;
  }

  .site-nav a {
    font-size: 13px;
  }

  .nav-cta {
    order: 999;
  }

  .hero {
    min-height: auto;
  }

  .hero__inner {
    padding: 58px 0 46px;
  }

  .hero__rail-card h2 {
    font-size: 22px;
  }

  .section {
    padding: 68px 0;
  }

  .reserve__inner {
    padding: 22px;
  }

  .split__list {
    grid-template-columns: 1fr;
  }

  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }
}