*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg-page: #FFFFFF;
  --bg-page-deep: #FFFFFF;
  --frame: rgba(0, 0, 0, 0.07);
  --frame-light: rgba(0, 0, 0, 0.045);
  --cream: #FFFFFF;
  --cream-strong: #FFFFFF;
  --cream-active: #F2F2F2;
  --cream-muted: #F9F9F9;
  --cream-border: var(--frame);
  --cream-border-subtle: var(--frame-light);
  --glass: var(--cream);
  --glass-strong: var(--cream-strong);
  --glass-border: var(--cream-border);
  --glass-border-subtle: var(--cream-border-subtle);
  --glass-highlight: rgba(255, 255, 255, 0.95);
  --glass-shadow: rgba(0, 0, 0, 0.07);
  --ink: #1D1D1F;
  --ink-secondary: #48484A;
  --muted: #636366;
  --muted-light: #86868B;
  --label: #6E6E73;
  --muted-strong: #636366;
  --line: rgba(60, 60, 67, 0.12);
  --accent: #FF9500;
  --accent-strong: #E8690A;
  --accent-bright: #FFB340;
  --accent-glow: rgba(255, 149, 0, 0.1);
  --accent-border: rgba(255, 149, 0, 0.24);
  --gold-text: 0 0 4px rgba(255, 149, 0, 0.22);
  --gold-box: 0 0 5px rgba(255, 149, 0, 0.12);
  --gold-dot: 0 0 3px rgba(255, 149, 0, 0.35);
  --surface: #FAFAFA;
  --surface-border: var(--frame-light);
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, sans-serif;
  --mono: "SF Mono", "Cascadia Mono", "Consolas", monospace;

  /* Typography — 12 / 13 / 14 / 15 / 17 px */
  --text-xs: 0.75rem;
  --text-sm: 0.8125rem;
  --text-base: 0.875rem;
  --text-md: 0.9375rem;
  --text-lg: 1.0625rem;
  --line-tight: 1.35;
  --line-normal: 1.5;
  --line-relaxed: 1.55;

  /* Spacing — 4px grid */
  --space-xs: 0.375rem;
  --space-sm: 0.5rem;
  --space-md: 0.75rem;
  --space-lg: 1rem;
  --space-xl: 1.25rem;

  /* Layout */
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 6px;
  --radius-xl: 8px;
  --radius-tab: 8px;
  --border-w: 0.5px;
  --w: min(22.5rem, 100%);
  --dock-h: 2.875rem;
  --touch: 2.75rem;
  --label-w: 3.75rem;
  --blur: blur(24px) saturate(160%);
  --blur-sm: blur(16px) saturate(150%);
  --glass-inset: inset 0 1px 0 rgba(255, 255, 255, 0.9);
  --glass-outer: 0 1px 2px rgba(0, 0, 0, 0.04),
                 0 6px 20px rgba(0, 0, 0, 0.06);
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  height: auto;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  padding: max(var(--space-sm), env(safe-area-inset-top))
           max(var(--space-md), env(safe-area-inset-right))
           calc(max(var(--space-md), env(safe-area-inset-bottom)) + var(--dock-h) + var(--space-md))
           max(var(--space-md), env(safe-area-inset-left));
  font-family: var(--sans);
  font-size: var(--text-base);
  line-height: var(--line-normal);
  color: var(--ink);
  background: var(--bg-page);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  touch-action: pan-y;
}

.liquid-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  background: #FFFFFF;
}

.liquid-bg__blob {
  display: none;
}

@keyframes blob-move {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(28px, -22px) scale(1.06); }
  66% { transform: translate(-20px, 16px) scale(0.94); }
}

.page {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--w);
  margin: 0 auto;
  padding: clamp(var(--space-xs), 2.5vh, var(--space-md)) 0 var(--space-sm);
}

.glass-panel {
  position: relative;
  width: 100%;
  padding: var(--space-md) var(--space-md) var(--space-sm);
  background: var(--cream-strong);
  border: var(--border-w) solid var(--cream-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--glass-outer), var(--glass-inset);
  overflow: hidden;
  animation: panel-rise 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.glass-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 10%;
  right: 10%;
  height: 0.5px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.7) 35%,
    rgba(255, 255, 255, 0.85) 50%,
    rgba(255, 255, 255, 0.7) 65%,
    transparent 100%
  );
  pointer-events: none;
  z-index: 2;
}

@keyframes panel-rise {
  from { opacity: 0; transform: translateY(12px); }
}

@keyframes content-fade {
  from { opacity: 0.55; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.glass-panel.is-switching {
  animation: content-fade 0.28s cubic-bezier(0.16, 1, 0.3, 1) both;
}

/* Header */
.masthead {
  position: relative;
  z-index: 2;
  padding-bottom: var(--space-md);
  border-bottom: var(--border-w) solid var(--line);
  text-align: center;
}

.masthead__title {
  font-size: var(--text-lg);
  font-weight: 600;
  letter-spacing: 0.015em;
  line-height: var(--line-tight);
  color: var(--ink);
  text-wrap: balance;
}

main {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

/* Sections */
.block {
  padding: var(--space-md) var(--space-md) calc(var(--space-md) + 1px);
  background: var(--cream-muted);
  border: var(--border-w) solid var(--frame-light);
  border-radius: var(--radius-lg);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
  min-width: 0;
}

.block h2 {
  font-family: var(--sans);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: none;
  color: var(--label);
  margin-bottom: var(--space-sm);
}

/* Price */
.price-list--grouped {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  min-width: 0;
}

.price-list--grouped > .price-group {
  position: relative;
  padding-left: var(--space-md);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-xs) var(--space-sm);
  align-items: start;
  min-width: 0;
}

.price-list--grouped > .price-group::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: var(--gold-dot);
}

.price-group__label {
  padding-top: 0.125rem;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--ink-secondary);
  white-space: nowrap;
  line-height: var(--line-tight);
}

.price-group--single {
  grid-template-columns: 1fr;
}

.price-group--single::before {
  top: 0.65em;
}

.price-group__chips {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  min-width: 0;
}

.price-chip {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-xs) var(--space-sm);
  align-items: start;
  padding: var(--space-sm) var(--space-md);
  background: var(--surface);
  border: var(--border-w) solid var(--frame-light);
  border-radius: var(--radius-md);
  min-width: 0;
}

.price-chip__name {
  min-width: 0;
  font-size: var(--text-base);
  color: var(--muted);
  line-height: var(--line-normal);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.price-chip__price {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.1rem;
  justify-self: end;
  text-align: right;
}

.price-list em,
.price-chip em {
  font-style: normal;
  font-family: var(--mono);
  font-size: var(--text-md);
  font-weight: 600;
  color: var(--accent-strong);
  padding: 0.15em 0.375em;
  border-radius: var(--radius-sm);
  background: var(--accent-glow);
  border: var(--border-w) solid var(--accent-border);
  box-shadow: none;
  text-shadow: var(--gold-text);
  white-space: nowrap;
  line-height: var(--line-tight);
  justify-self: end;
}

.price-chip--price-first {
  grid-template-columns: auto minmax(0, 1fr);
}

.price-chip--price-first em {
  justify-self: start;
}

.price-chip--dt-line em {
  white-space: normal;
  text-wrap: balance;
}

.price-chip__suffix {
  font-size: var(--text-xs);
  color: var(--muted-light);
  line-height: var(--line-tight);
  text-align: right;
}

.price-chip__note {
  font-family: var(--mono);
  font-size: var(--text-xs);
  color: var(--muted-light);
  line-height: var(--line-tight);
  justify-self: end;
  text-align: right;
}

.price-chip--note {
  background: #F5F5F5;
}

/* Contact */
.contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.contact-list li {
  display: grid;
  grid-template-columns: var(--label-w) minmax(0, 1fr);
  align-items: stretch;
  gap: var(--space-xs);
  min-width: 0;
}

.contact-label {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: var(--touch);
  padding: var(--space-xs) var(--space-xs);
  font-family: var(--sans);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0;
  line-height: var(--line-tight);
  text-align: center;
  white-space: nowrap;
  color: var(--muted-light);
  background: var(--surface);
  border: var(--border-w) solid var(--frame-light);
  border-radius: var(--radius-sm);
}

.contact-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xs);
  min-width: 0;
  min-height: var(--touch);
  padding: var(--space-xs) var(--space-sm);
  font-family: var(--sans);
  font-size: var(--text-md);
  font-weight: 500;
  color: var(--accent-strong);
  text-decoration: none;
  text-shadow: var(--gold-text);
  background: #FFFFFF;
  border: var(--border-w) solid var(--frame-light);
  border-radius: var(--radius-md);
  box-shadow: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  transition: background 0.15s ease, transform 0.12s ease, box-shadow 0.15s ease;
  overflow: hidden;
}

.contact-link::after {
  content: "↗";
  font-size: var(--text-xs);
  color: var(--muted-light);
  text-shadow: none;
  opacity: 0.8;
}

.contact-link:active {
  transform: scale(0.98);
  background: var(--cream-active);
  box-shadow: none;
}

.hint {
  min-height: 1.375rem;
  margin-top: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  font-family: var(--mono);
  font-size: var(--text-xs);
  color: var(--accent-strong);
  text-align: center;
  text-shadow: none;
  border-radius: var(--radius-sm);
  background: var(--accent-glow);
  border: var(--border-w) solid var(--accent-border);
  box-shadow: none;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.hint:not(:empty) {
  opacity: 1;
}

/* Footer */
.foot {
  position: relative;
  z-index: 2;
  margin-top: var(--space-sm);
  padding-top: var(--space-md);
  border-top: var(--border-w) solid var(--line);
}

.foot__note {
  font-size: var(--text-xs);
  line-height: var(--line-relaxed);
  color: var(--muted-light);
  text-align: center;
}

.foot__slogan {
  margin-top: var(--space-xs);
  font-size: var(--text-sm);
  color: var(--muted);
  text-align: center;
  letter-spacing: 0.02em;
}

/* Dock — frosted tab bar */
.page-switch {
  position: fixed;
  bottom: max(var(--space-sm), env(safe-area-inset-bottom));
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  width: min(calc(100vw - var(--space-xl)), var(--w));
  padding: var(--space-xs) var(--space-xs);
  background: #FFFFFF;
  border: var(--border-w) solid var(--frame);
  border-radius: var(--radius-tab);
  box-shadow:
    0 4px 16px rgba(0, 0, 0, 0.07),
    0 1px 3px rgba(0, 0, 0, 0.04);
}

.page-switch__btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(var(--touch) - var(--space-xs));
  padding: var(--space-xs) var(--space-xs);
  font-family: var(--sans);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--muted);
  text-decoration: none;
  border-radius: var(--radius-tab);
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  transition:
    color 0.2s ease,
    background 0.2s ease,
    box-shadow 0.2s ease,
    transform 0.12s ease;
}

.page-switch__btn:active {
  transform: scale(0.96);
}

.page-switch__btn.is-active {
  color: var(--accent-strong);
  font-weight: 600;
  text-shadow: none;
  background: var(--accent-glow);
  border: none;
  box-shadow: none;
}

@media (max-width: 520px) {
  body {
    padding-left: max(var(--space-sm), env(safe-area-inset-left));
    padding-right: max(var(--space-sm), env(safe-area-inset-right));
    padding-bottom: calc(max(var(--space-md), env(safe-area-inset-bottom)) + var(--dock-h) + var(--space-md));
  }

  .page {
    padding-top: var(--space-xs);
  }

  .glass-panel {
    padding: var(--space-md) var(--space-sm) var(--space-sm);
  }

  .masthead__title {
    font-size: var(--text-md);
  }

  .block {
    padding: var(--space-sm) var(--space-sm) calc(var(--space-sm) + 1px);
  }

  .contact-list {
    gap: var(--space-sm);
  }

  .contact-list li {
    grid-template-columns: 1fr;
    gap: var(--space-xs);
    padding: var(--space-sm);
    background: var(--cream-muted);
    border: var(--border-w) solid var(--frame-light);
    border-radius: var(--radius-md);
  }

  .contact-label {
    justify-content: flex-start;
    min-height: auto;
    width: fit-content;
    padding: 0.125rem var(--space-xs);
  }

  .contact-link {
    min-height: var(--touch);
    padding: var(--space-sm) var(--space-md);
    background: #FFFFFF;
    border: var(--border-w) solid var(--frame-light);
    border-radius: var(--radius-sm);
    box-shadow: none;
  }

  .price-list--grouped > .price-group {
    grid-template-columns: 1fr;
    gap: var(--space-xs);
    padding-left: var(--space-sm);
  }

  .price-group__label {
    padding-top: 0;
  }

  .price-chip {
    grid-template-columns: 1fr;
    gap: var(--space-xs);
    padding: var(--space-sm);
  }

  .price-list em,
  .price-chip em {
    justify-self: start;
  }

  .price-chip--price-first {
    grid-template-columns: 1fr;
  }

  .price-chip__price,
  .price-chip__suffix,
  .price-chip__note {
    align-items: flex-start;
    justify-self: start;
    text-align: left;
  }
}

@media (max-width: 360px) {
  :root { --dock-h: 2.625rem; }

  .page-switch {
    width: calc(100vw - var(--space-md));
    gap: 2px;
    padding: 3px;
  }

  .page-switch__btn {
    min-height: calc(var(--touch) - var(--space-sm));
    padding: var(--space-xs) 2px;
    font-size: var(--text-xs);
    letter-spacing: 0;
  }

  .contact-link {
    font-size: var(--text-base);
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }

  .glass-panel.is-switching {
    animation: none !important;
  }

  .price-list em,
  .price-chip em,
  .contact-link,
  .contact-link::after,
  .hint,
  .page-switch__btn.is-active {
    text-shadow: none !important;
    box-shadow: none !important;
  }

  .price-list--grouped > .price-group::before {
    box-shadow: none !important;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-page: #1C1C1E;
    --bg-page-deep: #141416;
    --cream: rgba(44, 44, 46, 0.72);
    --cream-strong: rgba(58, 58, 60, 0.78);
    --cream-active: rgba(72, 72, 74, 0.92);
    --cream-muted: rgba(44, 44, 46, 0.45);
    --cream-border: rgba(255, 255, 255, 0.12);
    --cream-border-subtle: rgba(255, 255, 255, 0.08);
    --glass: var(--cream);
    --glass-strong: var(--cream-strong);
    --glass-border: var(--cream-border);
    --glass-border-subtle: var(--cream-border-subtle);
    --glass-highlight: rgba(255, 255, 255, 0.15);
    --glass-shadow: rgba(0, 0, 0, 0.35);
    --ink: #F5F5F7;
    --ink-secondary: #D1D1D6;
    --muted: #AEAEB2;
    --muted-light: #8E8E93;
    --label: #98989D;
    --muted-strong: #AEAEB2;
    --line: rgba(84, 84, 88, 0.45);
    --accent: #FF9F0A;
    --accent-strong: #FFB340;
    --accent-bright: #FFD080;
    --accent-glow: rgba(255, 159, 10, 0.14);
    --accent-border: rgba(255, 159, 10, 0.28);
    --gold-text: 0 0 4px rgba(255, 159, 10, 0.3);
    --gold-box: 0 0 5px rgba(255, 159, 10, 0.15);
    --gold-dot: 0 0 3px rgba(255, 159, 10, 0.4);
    --surface: rgba(44, 44, 46, 0.5);
    --surface-border: rgba(255, 255, 255, 0.1);
    --glass-inset: inset 0 1px 0 rgba(255, 255, 255, 0.1);
    --glass-outer: 0 8px 32px rgba(0, 0, 0, 0.4),
                   0 2px 8px rgba(0, 0, 0, 0.2);
  }

  body { background: var(--bg-page); }

  .liquid-bg {
    background:
      radial-gradient(ellipse 70% 55% at 15% 8%, rgba(50, 50, 54, 0.6) 0%, transparent 58%),
      radial-gradient(ellipse 65% 50% at 88% 55%, rgba(44, 44, 48, 0.5) 0%, transparent 52%),
      radial-gradient(ellipse 55% 45% at 45% 92%, rgba(48, 48, 52, 0.4) 0%, transparent 48%),
      linear-gradient(168deg, #1C1C1E 0%, #18181A 45%, #141416 100%);
  }

  .liquid-bg__blob { opacity: 0.35; }

  .liquid-bg__blob--1 {
    background: radial-gradient(circle, rgba(60, 60, 64, 0.6) 0%, transparent 68%);
  }

  .liquid-bg__blob--2 {
    background: radial-gradient(circle, rgba(54, 54, 58, 0.5) 0%, transparent 68%);
  }

  .liquid-bg__blob--3 {
    background: radial-gradient(circle, rgba(50, 50, 54, 0.45) 0%, transparent 68%);
  }

  .glass-panel {
    background: var(--cream-strong);
    border-color: var(--cream-border);
  }

  .glass-panel::before {
    background: linear-gradient(
      90deg,
      transparent 0%,
      rgba(255, 255, 255, 0.12) 35%,
      rgba(255, 255, 255, 0.18) 50%,
      rgba(255, 255, 255, 0.12) 65%,
      transparent 100%
    );
  }

  .block {
    background: var(--cream-muted);
    border-color: var(--surface-border);
  }

  .price-chip,
  .contact-link {
    background: rgba(58, 58, 60, 0.55);
    border-color: var(--surface-border);
  }

  .price-list em,
  .price-chip em {
    background: var(--accent-glow);
    border-color: var(--accent-border);
    color: var(--accent-strong);
    box-shadow: none;
    text-shadow: var(--gold-text);
  }

  .contact-link {
    color: #FFB340;
    text-shadow: 0 0 1px rgba(255, 159, 10, 0.35);
  }

  .page-switch__btn.is-active {
    color: #FFB340;
    background: var(--accent-glow);
    text-shadow: none;
  }

  @media (max-width: 520px) {
    .contact-list li {
      background: rgba(44, 44, 46, 0.5);
      border-color: var(--surface-border);
    }

    .contact-link {
      background: rgba(58, 58, 60, 0.55);
      border: var(--border-w) solid var(--surface-border);
    }
  }

  .contact-label {
    background: rgba(58, 58, 60, 0.5);
    border-color: var(--surface-border);
  }

  .price-chip--note {
    background: rgba(44, 44, 46, 0.4);
  }

  .page-switch {
    background: rgba(44, 44, 46, 0.78);
    border-color: var(--cream-border);
  }

  .page-switch__btn {
    color: var(--muted);
  }
}