:root {
  --ys-ink: #26332f;
  --ys-muted: #5d6b66;
  --ys-paper: #fffdf8;
  --ys-mist: #f1f5f2;
  --ys-clinic: #286a5b;
  --ys-clinic-soft: #dcece6;
  --ys-lab: #66558e;
  --ys-lab-soft: #ebe6f4;
  --ys-action: #b9573f;
  --ys-border: #ccd7d2;
  --ys-radius: 0.9rem;
  --ys-shadow: 0 0.65rem 1.75rem rgba(38, 51, 47, 0.09);
  --ys-content: 45rem;
  --ys-wide: 70rem;
}

html { scroll-behavior: smooth; }

body {
  background: var(--ys-paper);
  color: var(--ys-ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", YuGothic, "Noto Sans JP", sans-serif;
  line-height: 1.8;
}

a { text-underline-offset: 0.18em; }
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 3px solid #d98772;
  outline-offset: 3px;
}

.site-content { padding-inline: clamp(1rem, 4vw, 2rem); }
.content-area { width: 100% !important; }
.widget-area { display: none; }

.ys-home { margin-inline: auto; max-width: var(--ys-wide); }
.ys-section { padding-block: clamp(3.5rem, 8vw, 6.5rem); }
.ys-section--compact { padding-block: clamp(2.5rem, 6vw, 4rem); }
.ys-kicker {
  color: var(--ys-muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  margin-bottom: 0.75rem;
  text-transform: uppercase;
}
.ys-lead { color: var(--ys-muted); font-size: clamp(1.08rem, 1rem + 0.35vw, 1.3rem); max-width: 42rem; }

.ys-hero {
  align-items: center;
  display: grid;
  gap: clamp(2rem, 6vw, 5rem);
  grid-template-columns: minmax(0, 1fr);
  min-height: min(78vh, 48rem);
  padding-block: clamp(3rem, 10vw, 7rem);
}
.ys-hero h1 { font-size: clamp(2rem, 1.45rem + 2.5vw, 3.75rem); letter-spacing: -0.025em; margin-bottom: 1.25rem; }
.ys-hero__mark {
  background: linear-gradient(145deg, var(--ys-clinic-soft), var(--ys-lab-soft));
  border-radius: 50% 42% 48% 45%;
  min-height: 16rem;
  position: relative;
}
.ys-hero__mark::after {
  border: 2px solid rgba(40, 106, 91, 0.34);
  border-radius: 50%;
  content: "";
  inset: 18%;
  position: absolute;
}

.ys-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.75rem; }
.ys-button,
.ys-button:visited {
  align-items: center;
  background: var(--ys-action);
  border: 2px solid var(--ys-action);
  border-radius: 0.55rem;
  color: #fff;
  display: inline-flex;
  font-weight: 700;
  justify-content: center;
  min-height: 3rem;
  padding: 0.65rem 1.2rem;
  text-decoration: none;
}
.ys-button:hover { background: #934331; border-color: #934331; color: #fff; }
.ys-button--secondary,
.ys-button--secondary:visited { background: transparent; border-color: var(--ys-clinic); color: var(--ys-clinic); }
.ys-button--secondary:hover { background: var(--ys-clinic-soft); color: var(--ys-ink); }

.ys-grid { display: grid; gap: 1rem; grid-template-columns: minmax(0, 1fr); }
.ys-card,
.is-style-yasaki-card {
  background: #fff;
  border: 1px solid var(--ys-border);
  border-radius: var(--ys-radius);
  box-shadow: var(--ys-shadow);
  padding: clamp(1.25rem, 4vw, 2rem);
}
.ys-card h2,
.ys-card h3 { margin-top: 0; }
.ys-card__link { display: inline-block; font-weight: 700; margin-top: 0.5rem; }
.ys-card--clinic,
.is-style-yasaki-clinic { background: linear-gradient(145deg, #fff, var(--ys-clinic-soft)); border-color: #b9d4ca; }
.ys-card--lab,
.is-style-yasaki-lab { background: linear-gradient(145deg, #fff, var(--ys-lab-soft)); border-color: #d3c9e4; }

.ys-current-location {
  background: var(--ys-mist);
  border-left: 4px solid var(--ys-clinic);
  border-radius: 0 0.5rem 0.5rem 0;
  padding: 1rem 1.25rem;
}
.ys-note { color: var(--ys-muted); font-size: 0.9rem; }

@media (min-width: 48rem) {
  .ys-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ys-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .ys-hero { grid-template-columns: minmax(0, 1.3fr) minmax(16rem, 0.7fr); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; }
}
/* Mobile overflow safeguards. */
*,
*::before,
*::after {
  box-sizing: border-box;
}

.ys-home,
.ys-hero,
.ys-grid,
.ys-card,
.ys-hero > * {
  min-width: 0;
}

.ys-home {
  width: 100%;
}

.ys-hero h1,
.ys-lead,
.ys-card,
.ys-card p {
  overflow-wrap: anywhere;
}

img,
svg,
video {
  height: auto;
  max-width: 100%;
}

@media (max-width: 47.99rem) {
  .site-content {
    padding-inline: 1rem;
  }

  .inside-article {
    padding-inline: 0 !important;
  }

  .ys-hero h1 {
    font-size: clamp(1.85rem, 9vw, 2.5rem);
  }

  .ys-actions,
  .ys-actions > *,
  .ys-button {
    width: 100%;
  }
}
/* Phase 4-8 content components. */
.ys-alert,
.ys-cta-panel,
.ys-facts,
.ys-faq,
.ys-step-list {
  margin-block: clamp(2rem, 5vw, 3.5rem);
}

.ys-alert {
  background: #fff4e8;
  border: 1px solid #e6c19e;
  border-left: 5px solid var(--ys-action);
  border-radius: 0.5rem;
  padding: 1rem 1.25rem;
}

.ys-alert > :last-child,
.ys-current-location > :last-child,
.ys-cta-panel > :last-child {
  margin-bottom: 0;
}

.ys-cta-panel {
  background: linear-gradient(145deg, var(--ys-clinic-soft), #fff);
  border: 1px solid #b9d4ca;
  border-radius: var(--ys-radius);
  padding: clamp(1.35rem, 4vw, 2.5rem);
}

.ys-facts {
  border-bottom: 1px solid var(--ys-border);
}

.ys-facts > div {
  align-items: start;
  border-top: 1px solid var(--ys-border);
  display: grid;
  gap: 0.35rem 1.5rem;
  grid-template-columns: minmax(8rem, 0.7fr) minmax(0, 1.3fr);
  padding-block: 1rem;
}

.ys-facts span {
  color: var(--ys-muted);
}

.ys-step-list {
  counter-reset: ys-step;
  list-style: none;
  padding: 0;
}

.ys-step-list li {
  border-left: 2px solid var(--ys-clinic-soft);
  counter-increment: ys-step;
  display: grid;
  gap: 0.25rem;
  margin-left: 1.25rem;
  padding: 0 0 1.75rem 2rem;
  position: relative;
}

.ys-step-list li::before {
  align-items: center;
  background: var(--ys-clinic);
  border-radius: 50%;
  color: #fff;
  content: counter(ys-step);
  display: flex;
  font-weight: 700;
  height: 2.5rem;
  justify-content: center;
  left: -1.3rem;
  position: absolute;
  top: -0.25rem;
  width: 2.5rem;
}

.ys-step-list span {
  color: var(--ys-muted);
}

.ys-faq details {
  border-bottom: 1px solid var(--ys-border);
  padding-block: 1rem;
}

.ys-faq summary {
  cursor: pointer;
  font-weight: 700;
  min-height: 2.75rem;
  padding: 0.5rem 2rem 0.5rem 0;
}

.ys-faq summary:focus-visible {
  outline: 3px solid #d98772;
  outline-offset: 3px;
}

.entry-content h2 {
  margin-top: clamp(2.75rem, 7vw, 4.5rem);
}

.entry-content h3 {
  margin-top: 1.5rem;
}

@media (max-width: 35rem) {
  .ys-facts > div {
    grid-template-columns: 1fr;
  }
}