@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Noto+Sans+JP:wght@300;400;500;700&family=Noto+Serif+JP:wght@400;500;700&family=Sippori+Mincho:wght@400;500;600;700&display=swap');

:root {
  /* Color Palette (Forest Green, Warm Ivory, Rich Walnut, Pale Sage Green) */
  /* Optimized for organic trust, natural warmth, and high readability */
  --color-forest: #14291E;      /* Deepened for high text contrast */
  --color-forest-rgb: 20, 41, 30;
  --color-ivory: #FAF5EF;       /* Softened for warm cocoon-like feel */
  --color-ivory-rgb: 250, 245, 239;
  --color-walnut: #3E2A20;      /* Rich walnut brown for wood accents */
  --color-walnut-rgb: 62, 42, 32;
  --color-sage: #ECF0EC;        /* Pale organic green for quiet restfulness */
  --color-sage-rgb: 236, 240, 236;
  
  /* Semantics - Solid contrasts for 30-60yo patient readability */
  --bg-primary: var(--color-ivory);
  --bg-secondary: var(--color-sage);
  
  --text-primary: var(--color-forest);
  --text-secondary: rgba(var(--color-forest-rgb), 0.88); /* Higher contrast for accessibility */
  --text-muted: rgba(var(--color-forest-rgb), 0.65);     /* Higher contrast for accessibility */
  --text-light: var(--color-ivory);
  
  /* Organic wood-toned subtle borders */
  --border-color: rgba(var(--color-walnut-rgb), 0.15); 
  --border-light: rgba(var(--color-ivory-rgb), 0.25);
  
  /* Typography - Clean, elegant, highly legible */
  --font-serif: 'Sippori Mincho', 'Noto Serif JP', serif;
  --font-sans: 'Inter', 'Noto Sans JP', sans-serif;
  
  /* Layout Spacing (Generous yet highly structured negative space) */
  --space-unit: 8px;
  --space-xxs: calc(var(--space-unit) * 1);  /* 8px */
  --space-xs: calc(var(--space-unit) * 2);   /* 16px */
  --space-sm: calc(var(--space-unit) * 3);   /* 24px */
  --space-md: calc(var(--space-unit) * 5);   /* 40px */
  --space-lg: calc(var(--space-unit) * 8);   /* 64px */
  --space-xl: calc(var(--space-unit) * 12);  /* 96px */
  --space-xxl: calc(var(--space-unit) * 18); /* 144px */
  
  /* Page Geometry */
  --container-max-width: 1200px; /* Snug width for comfortable text line-lengths */
  --container-padding: var(--space-lg);
  --header-height: 90px;
  --header-height-mobile: 70px;
  
  /* Transitions */
  --transition-smooth: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* ===== Reset & Base Styling ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  line-height: 1.95; /* Optimal spacing for older eyes */
  letter-spacing: 0.04em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.nav-open {
  overflow: hidden;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}

br.sp-br {
  display: none;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

ul {
  list-style: none;
}

/* Typography Hierarchy - Always Forest Green */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.45;
  letter-spacing: 0.06em;
  color: var(--color-forest);
}

.text-display {
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.3;
}

.text-h1 {
  font-size: clamp(1.6rem, 3.5vw, 2.3rem);
}

.text-h2 {
  font-size: clamp(1.35rem, 2.6vw, 1.8rem);
}

.text-h3 {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.text-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  font-weight: 400;
}

.caption {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  display: block;
  margin-bottom: var(--space-sm);
}

/* ===== Layout Container ===== */
.container {
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* Minimalist Walnut Borders */
.divider {
  width: 100%;
  height: 1px;
  background-color: var(--border-color);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.divider-light {
  background-color: var(--border-light);
}

/* Minimal Interactive Buttons */
.btn-minimal {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-forest);
  border-bottom: 1px solid var(--color-forest);
  padding-bottom: 6px;
  transition: var(--transition-fast);
}

.btn-minimal::after {
  content: '→';
  margin-left: var(--space-xs);
  transition: transform var(--transition-fast);
}

.btn-minimal:hover {
  color: var(--color-walnut);
  border-color: var(--color-walnut);
}

.btn-minimal:hover::after {
  transform: translateX(4px);
}

.btn-solid {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  padding: 16px 36px;
  background-color: var(--color-forest);
  color: var(--color-ivory);
  border: 1px solid var(--color-forest);
  transition: var(--transition-fast);
  text-align: center;
  cursor: pointer;
}

.btn-solid:hover {
  background-color: transparent;
  color: var(--color-forest);
}

.btn-outline {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  padding: 16px 36px;
  background-color: transparent;
  color: var(--color-forest);
  border: 1px solid var(--color-forest);
  transition: var(--transition-fast);
  text-align: center;
  cursor: pointer;
}

.btn-outline:hover {
  background-color: var(--color-forest);
  color: var(--color-ivory);
}

/* ===== Common Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 100;
  background-color: rgba(var(--color-ivory-rgb), 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: var(--transition-fast);
}

.header.scrolled {
  height: 75px;
  border-bottom: 1px solid var(--border-color);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  letter-spacing: 0.08em;
  font-weight: 500;
  color: var(--color-forest);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-list a {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
}

.nav-list a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1.5px;
  background-color: var(--color-forest);
  transition: var(--transition-fast);
}

.nav-list a:hover::after,
.nav-list a.active::after {
  width: 100%;
}

.nav-list a:hover,
.nav-list a.active {
  color: var(--color-forest);
}

.nav-list .nav-cta a {
  background-color: var(--color-forest);
  color: var(--color-ivory);
  padding: 10px 20px;
  border-radius: 0;
  font-size: 0.75rem;
}

.nav-list .nav-cta a::after {
  display: none;
}

.nav-list .nav-cta a:hover {
  background-color: var(--color-walnut);
}

/* Mobile Hamburger Menu */
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 28px;
  height: 18px;
  position: relative;
  z-index: 200;
}

.hamburger span {
  display: block;
  position: absolute;
  height: 1.5px;
  width: 100%;
  background: var(--color-forest);
  transition: var(--transition-fast);
}

.hamburger span:nth-child(1) { top: 0px; }
.hamburger span:nth-child(2) { top: 8px; }
.hamburger span:nth-child(3) { top: 16px; }

.hamburger.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ===== Common Footer ===== */
.footer {
  background-color: var(--color-forest);
  color: var(--color-ivory);
  padding-top: var(--space-xxl);
  padding-bottom: var(--space-xl);
  font-family: var(--font-sans);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-xxl);
}

.footer-brand .footer-logo {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  letter-spacing: 0.08em;
  margin-bottom: 0;
  color: var(--color-ivory);
}

.footer-brand p {
  font-size: 0.85rem;
  color: rgba(var(--color-ivory-rgb), 0.75);
  max-width: 320px;
  line-height: 1.8;
}

.footer-column h3 {
  color: var(--color-ivory);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-sm);
  font-weight: 600;
}

.footer-links li {
  margin-bottom: var(--space-xs);
}

.footer-links a {
  font-size: 0.85rem;
  color: rgba(var(--color-ivory-rgb), 0.7);
}

.footer-links a:hover {
  color: var(--color-ivory);
}

.footer-bottom {
  border-top: 1px solid var(--border-light);
  padding-top: var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: rgba(var(--color-ivory-rgb), 0.5);
}

/* ===== Section Backgrounds (Prevents stark white wash) ===== */
.bg-ivory {
  background-color: var(--color-ivory);
}

.bg-sage {
  background-color: var(--color-sage);
}

/* ===== Scroll Reveal Animations ===== */
/* Slow, calm reveal with 15px translateY to maintain quiet brand image */
.reveal {
  opacity: 0;
  transform: translateY(15px);
  transition: opacity 1.5s cubic-bezier(0.16, 1, 0.3, 1), transform 1.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.25s; }
.reveal-delay-2 { transition-delay: 0.5s; }

/* ===== Section Padding Helper ===== */
.section {
  padding-top: var(--space-xxl);
  padding-bottom: var(--space-xxl);
}

.section-dark {
  background-color: var(--color-forest);
  color: var(--color-ivory);
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: var(--color-ivory);
}

/* ===== HOMEPAGE SPECIFIC LAYOUT ===== */

/* 1. Hero Section (100vh Full View with Scroll Indicator) */
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: var(--space-lg);
  align-items: center;
  width: 100%;
  height: 100%;
}

.hero-text {
  padding-right: var(--space-md);
  z-index: 10;
}

.hero-text h1 {
  margin-bottom: var(--space-md);
  color: var(--color-forest);
}

.hero-text p {
  margin-bottom: var(--space-lg);
  max-width: 480px;
}

.hero-intro {
  margin-bottom: var(--space-lg);
  max-width: 580px;
  text-align: left;
}

.hero-intro-lead {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-forest);
  margin-bottom: var(--space-xs);
  line-height: 1.6;
  max-width: 560px;
}

.hero-intro-text {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
  max-width: 560px;
}

.hero-intro-highlight {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-forest);
  margin-bottom: var(--space-xs);
  max-width: 560px;
}

.hero-intro-text:last-child {
  margin-bottom: 0;
}

.hero-cta {
  margin-top: var(--space-md);
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.hero-image-wrap {
  width: 100%;
  height: 75vh;
  overflow: hidden;
  position: relative;
}

.hero-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Scroll Down Indicator (Aesop-like minimalist styling) */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-md);
  left: var(--container-padding);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background-color: var(--border-color);
  position: relative;
  overflow: hidden;
}

.scroll-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 15px;
  background-color: var(--color-walnut);
  animation: scrollDown 2s cubic-bezier(0.16, 1, 0.3, 1) infinite;
}

@keyframes scrollDown {
  0% { transform: translateY(-15px); }
  60% { transform: translateY(40px); }
  100% { transform: translateY(40px); }
}

/* 2. Empathy Section (Statement + Daily alignment) */
.empathy {
  text-align: center;
}

.empathy-statement {
  max-width: 760px;
  margin: 0 auto var(--space-xl) auto;
}

.empathy-title {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 2.8vw, 1.95rem);
  line-height: 1.8;
  font-weight: 700;
  color: var(--color-forest);
  margin-bottom: var(--space-md);
}

/* Daily Alignment details (このような毎日を過ごしていませんか) */
.empathy-daily {
  max-width: 720px;
  margin: var(--space-xl) auto 0 auto;
  text-align: left;
  border-top: 1px solid var(--border-color);
  padding-top: var(--space-xl);
}

.empathy-daily h3 {
  text-align: center;
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 2.5vw, 1.6rem);
  margin-bottom: var(--space-lg);
  font-weight: 700;
  color: var(--color-forest);
}

.daily-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md) var(--space-lg);
}

.daily-item {
  display: flex;
  align-items: start;
  gap: var(--space-xs);
  padding: var(--space-xs) 0;
  border-bottom: 1px dashed var(--border-color);
}

.daily-bullet {
  color: var(--color-walnut);
  font-size: 1.1rem;
  line-height: 1;
  margin-top: 2px;
  font-weight: bold;
}

.daily-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* 3. BIO's 4 Support Stories (Timeline alignment with Walnut touch) */
.support-header {
  margin-bottom: var(--space-xl);
  max-width: 600px;
}

.support-story {
  position: relative;
  padding-left: var(--space-lg);
  border-left: 1px solid var(--border-color); /* Walnut-toned line */
  margin-left: var(--space-sm);
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.story-node {
  position: relative;
}

/* Walnut colored Node marker on the line */
.story-node::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-lg) - 4.5px);
  top: 12px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-walnut);
}

.story-layout {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
}

.story-text {
  padding-right: var(--space-md);
}

.story-text h3 {
  font-size: 1.3rem;
  margin-bottom: var(--space-sm);
  color: var(--color-forest);
}

.story-text p {
  margin-bottom: var(--space-md);
}

.story-image-wrap {
  width: 100%;
  aspect-ratio: 16/10;
  overflow: hidden;
}

.story-image-wrap img {
  width: 100%;
  height: 100%;
}

/* 4. Why BIO (Reasons Section: Typography & Photos - Clean quiet layout) */
.reasons-title-block {
  margin-bottom: var(--space-md);
  max-width: 600px;
}

.reasons-list {
  display: flex;
  flex-direction: column;
}

.reason-row {
  display: grid;
  grid-template-columns: 0.8fr 1.6fr 1.4fr;
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--border-color);
  gap: var(--space-md);
  align-items: center;
}

.reason-row:last-child {
  border-bottom: 1px solid var(--border-color);
}

.reason-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.reason-num-label {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  color: var(--color-walnut); /* Walnut tone instead of cold grey */
  text-transform: uppercase;
  font-weight: 600;
}

.reason-heading h3 {
  font-size: 1.25rem;
  line-height: 1.45;
  font-family: var(--font-serif);
  font-weight: 500;
  color: var(--color-forest);
}

.reason-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  padding-right: var(--space-md);
}

.reason-img-wrap {
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
  opacity: 0.95;
}

.reason-img-wrap img {
  width: 100%;
  height: 100%;
}

/* 5. Blog (Latest 3 Articles) */
.latest-blog {
  padding-top: var(--space-sm);
  padding-bottom: var(--space-sm);
}
.blog-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: var(--space-xl);
}

.blog-list {
  display: flex;
  flex-direction: column;
}

.blog-item {
  display: grid;
  grid-template-columns: 1.5fr 3.5fr 1fr;
  padding: var(--space-md) 0;
  border-top: 1px solid var(--border-color);
  align-items: center;
}

.blog-item:last-child {
  border-bottom: 1px solid var(--border-color);
}

.blog-date {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.blog-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 500;
  line-height: 1.6;
  color: var(--color-forest);
}

.blog-item:hover .blog-title {
  color: var(--color-walnut);
}

.blog-arrow {
  text-align: right;
  font-family: var(--font-sans);
  font-size: 1.1rem;
  color: var(--text-muted);
}

/* 6. Triple Booking CTA (3 Pathways for clear patient CVR) */
.booking-cta {
  background-color: var(--color-forest);
  color: var(--color-ivory);
  position: relative;
  overflow: hidden;
}

.booking-cta-inner {
  max-width: 900px;
  margin: 0 auto;
}

.booking-cta h2 {
  color: var(--color-ivory);
  margin-bottom: var(--space-sm);
  text-align: center;
}

.booking-cta .cta-intro {
  color: rgba(var(--color-ivory-rgb), 0.85);
  max-width: 580px;
  margin: 0 auto var(--space-xl) auto;
  text-align: center;
}

/* Triple CVR Layout - Clear, Readable, Non-confusing */
.triple-cta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  padding-top: var(--space-xl);
}

.cta-path {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 0 var(--space-sm);
  border-right: 1px solid var(--border-light);
}

.cta-path:last-child {
  border-right: none;
}

.cta-path h3 {
  font-size: 1.15rem;
  color: var(--color-ivory);
  margin-bottom: var(--space-xs);
  font-family: var(--font-sans);
  font-weight: 600;
}

.cta-path p {
  font-size: 0.85rem;
  color: rgba(var(--color-ivory-rgb), 0.75);
  margin-bottom: var(--space-md);
  line-height: 1.75;
  flex-grow: 1;
}

.cta-path .btn-cta-path {
  display: block;
  width: 100%;
  padding: 14px 0;
  text-align: center;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  font-weight: 600;
  transition: var(--transition-fast);
}

.cta-path .btn-line {
  background-color: #244B36; /* Distinct green harmonized with forest */
  color: var(--color-ivory);
  border: 1px solid var(--border-light);
}

.cta-path .btn-line:hover {
  background-color: var(--color-ivory);
  color: var(--color-forest);
}

.cta-path .btn-web {
  background-color: var(--color-ivory);
  color: var(--color-forest);
  border: 1px solid var(--color-ivory);
}

.cta-path .btn-web:hover {
  background-color: transparent;
  color: var(--color-ivory);
}

.cta-path .btn-phone {
  background-color: transparent;
  color: var(--color-ivory);
  border: 1px solid var(--color-ivory);
}

.cta-path .btn-phone:hover {
  background-color: var(--color-ivory);
  color: var(--color-forest);
}

.symptoms-guide {
  padding-top: 0;
  padding-bottom: var(--space-xl);
}

/* ===== RESPONSIVE DESIGN ===== */
/* Breakpoint set to 1024px to toggle Hamburger on all tablets and mobile devices */
@media (max-width: 1024px) {
  :root {
    --container-padding: var(--space-md);
  }
  
  .section {
    padding-top: var(--space-xl);
    padding-bottom: var(--space-xl);
  }
  
  .header {
    height: var(--header-height-mobile);
  }
  
  .hamburger {
    display: block;
  }
  
  .nav-list {
    position: fixed;
    top: var(--header-height-mobile);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height-mobile));
    background-color: var(--bg-primary);
    flex-direction: column;
    justify-content: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    transform: translateX(100%);
    transition: var(--transition-smooth);
    z-index: 150;
  }
  
  .nav-list.active {
    transform: translateX(0);
  }
  
  .nav-list a {
    font-size: 1.15rem;
  }
  
  .nav-list .nav-cta a {
    display: inline-block;
    width: auto;
    padding: 14px 40px;
    font-size: 0.9rem;
  }

  .hero {
    height: auto;
    min-height: 100vh;
    padding-top: calc(var(--header-height-mobile) + var(--space-lg));
    padding-bottom: var(--space-xl);
  }
  
  .hero-layout {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  
  .hero-text {
    padding-right: 0;
    text-align: center;
    margin-bottom: var(--space-sm);
  }
  
  .hero-text p {
    margin-left: auto;
    margin-right: auto;
    max-width: 100%;
  }

  .hero-intro {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
  }

  .hero-intro-lead,
  .hero-intro-text,
  .hero-intro-highlight {
    max-width: 100%;
  }

  .hero-intro-highlight {
    font-size: 1.1rem;
  }

  .support-header {
    max-width: 100%;
  }

  .hero-cta {
    justify-content: center;
  }
  
  .hero-image-wrap {
    height: 50vh;
    max-width: 600px;
    margin: 0 auto;
  }
  
  .scroll-indicator {
    display: none;
  }

  .daily-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xxs);
  }
  
  .dual-layout {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .dual-content {
    padding-left: 0;
  }
  
  .reason-row {
    grid-template-columns: 1fr;
    gap: var(--space-xs);
    padding: var(--space-md) 0;
  }
  
  .reason-text {
    padding-right: 0;
  }
  
  .reason-img-wrap {
    aspect-ratio: 16/10;
  }
  
  .story-layout {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  
  .story-text {
    padding-right: 0;
  }
  
  .triple-cta-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .cta-path {
    border-right: none;
    padding-bottom: var(--space-md);
    padding-left: 0;
    padding-right: 0;
  }
  
  .cta-path:last-child {
    padding-bottom: 0;
  }
  
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
  }
  
  .footer-brand {
    grid-column: 1 / -1;
    margin-bottom: var(--space-sm);
  }

  .pc-br {
    display: none;
  }

  br.sp-br {
    display: inline;
  }
}

@media (max-width: 640px) {
  .hero-cta {
    justify-content: center;
    gap: var(--space-xs);
  }

  .hero-cta .btn-solid,
  .hero-cta .btn-outline {
    padding: 12px 20px;
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    flex: 1;
    min-width: 130px;
    max-width: 160px;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    white-space: nowrap;
  }

  .footer-top {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-xs);
    text-align: center;
  }
  
  .blog-item {
    grid-template-columns: 1fr;
    gap: var(--space-xxs);
    padding: var(--space-sm) 0;
  }
  
  .blog-arrow {
    display: none;
  }

  :root {
    --container-padding: var(--space-xs); /* 16px padding on mobile to widen content area */
  }

  .section {
    padding-top: var(--space-lg);
    padding-bottom: var(--space-lg);
  }

  .hero {
    padding-bottom: var(--space-lg);
  }

  .symptoms-guide {
    padding-bottom: var(--space-lg);
  }

  .text-display {
    font-size: 1.8rem; /* clean 2-line layout for H1 */
  }

  .empathy-title {
    font-size: 1.3rem; /* prevents awkward line wrapping of single characters like 'ん。' */
    line-height: 1.6;
  }

  .hero-intro,
  .empathy-intro p,
  .booking-cta .cta-intro {
    text-align: left; /* left align body texts for readability */
  }

  .hero-intro-highlight {
    margin-top: var(--space-xs);
    margin-bottom: var(--space-xs);
    font-size: 1.1rem;
  }

  .text-desc,
  .reason-text,
  .story-text p,
  .hero-intro p,
  .booking-cta .cta-intro {
    font-size: 0.95rem; /* unified, readable paragraph font size */
    line-height: 1.75;
  }
}

/* ===== Image Placeholder ===== */
.image-placeholder {
  background-color: var(--color-sage);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  width: 100%;
  max-width: 100%;
  height: auto;
}

/* ===== 5. Menu & Pricing Homepage Styles ===== */
.menu-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.menu-card {
  background-color: #FAF5EF; /* Warm Ivory background */
  border: 1px solid var(--border-color);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-fast);
}

.menu-card:hover {
  border-color: var(--color-forest);
  transform: translateY(-2px);
}

.menu-card-header {
  display: flex;
  flex-direction: column;
  gap: var(--space-xxs);
  margin-bottom: var(--space-xs);
}

.menu-card-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-forest);
}

.menu-card-time {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.menu-card-price {
  font-family: var(--font-sans);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-walnut);
  margin-bottom: var(--space-xs);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: var(--space-xxs);
}

.menu-card-price .tax-label {
  font-size: 0.8rem;
  font-weight: normal;
  color: var(--text-muted);
}

.menu-card-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Initial Fee Box */
.initial-fee-box {
  background-color: var(--color-sage);
  border: 1px solid var(--border-color);
  padding: var(--space-sm) var(--space-md);
  margin-top: var(--space-md);
  transition: var(--transition-fast);
}

.initial-fee-box:hover {
  border-color: var(--color-forest);
}

.initial-fee-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-xxs);
  flex-wrap: wrap;
  gap: var(--space-xxs);
}

.initial-fee-title {
  font-family: var(--font-sans);
  font-weight: 600;
  color: var(--color-forest);
}

.initial-fee-price {
  font-family: var(--font-sans);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-walnut);
}

.initial-fee-price .tax-label {
  font-size: 0.75rem;
  font-weight: normal;
  color: var(--text-muted);
}

.initial-fee-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ===== 6. Reassurance Grid Styles ===== */
.reassurance-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.reassurance-item {
  background-color: var(--color-ivory);
  border: 1px solid var(--border-color);
  padding: var(--space-md) var(--space-sm);
  text-align: center;
  transition: var(--transition-fast);
}

.reassurance-item:hover {
  border-color: var(--color-forest);
}

.reassurance-item h4 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-forest);
  margin-bottom: var(--space-xs);
  line-height: 1.4;
}

.reassurance-item p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== 7. Access / Clinic Info Styles ===== */
.access-layout {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
  margin-top: var(--space-md);
}

.access-info-table {
  border-top: 1px solid var(--border-color);
}

.access-table-row {
  display: flex;
  justify-content: space-between;
  padding: var(--space-xs) 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.95rem;
  line-height: 1.6;
}

.table-label {
  font-weight: 600;
  color: var(--color-forest);
  width: 120px;
  flex-shrink: 0;
}

.table-value {
  color: var(--text-secondary);
  text-align: right;
  flex-grow: 1;
}

.access-map-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 4/3;
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.access-map-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* Responsive Overrides */
@media (max-width: 1024px) {
  .access-layout {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  .reassurance-grid {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }
  .menu-cards-grid {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }
}

@media (max-width: 640px) {
  .menu-card {
    padding: var(--space-sm);
  }
  .initial-fee-box {
    padding: var(--space-sm);
  }
  .reassurance-item {
    padding: var(--space-sm);
  }
  .access-table-row {
    flex-direction: column;
    align-items: flex-start;
  }
  .table-value {
    text-align: left;
    margin-top: 4px;
  }
}

/* ===== Hero Center Editorial Flow ===== */
.hero-editorial-flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  width: 100%;
  padding-top: var(--space-md);
  padding-bottom: var(--space-md);
}

.hero-landscape-image {
  width: 100%;
  max-width: 900px;
  margin: var(--space-md) auto;
  aspect-ratio: 16/9;
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.hero-landscape-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== Worry Cards Grid (Empathy Section) ===== */
.daily-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.daily-card {
  background-color: var(--color-ivory);
  border: 1px solid var(--border-color);
  padding: var(--space-sm) var(--space-md);
  display: flex;
  align-items: start;
  gap: var(--space-xs);
  transition: var(--transition-fast);
}

.daily-card:hover {
  border-color: var(--color-forest);
}

.daily-card-bullet {
  color: var(--color-walnut);
  font-weight: bold;
  font-size: 1.1rem;
  margin-top: -2px;
}

.daily-card-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  text-align: left;
}

/* ===== BIO's Treatment Concept Cards Grid ===== */
.concept-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.concept-card {
  background-color: var(--color-sage);
  border: 1px solid var(--border-color);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-fast);
}

.concept-card:hover {
  border-color: var(--color-forest);
}

.concept-step-label {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-walnut);
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: var(--space-xxs);
}

.concept-card h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-forest);
  margin-bottom: var(--space-xs);
}

.concept-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-sm);
}

.concept-card-img-wrap {
  width: 100%;
  aspect-ratio: 16/10;
  overflow: hidden;
  border: 1px solid var(--border-color);
  margin-top: auto;
}

.concept-card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== Treatment Visual Section ===== */
.treatment-visual-wrapper {
  width: 100%;
}

.treatment-visual-img-wrap {
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  aspect-ratio: 16/9;
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.treatment-visual-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== Why BIO Grid (Reasons) ===== */
.why-bio-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.why-bio-card {
  background-color: var(--color-ivory);
  border: 1px solid var(--border-color);
  padding: var(--space-md);
  transition: var(--transition-fast);
}

.why-bio-card:hover {
  border-color: var(--color-forest);
}

.why-bio-card h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-forest);
  margin-bottom: var(--space-xs);
}

.why-bio-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Responsive Tablet/Mobile Overrides */
@media (max-width: 1024px) {
  .hero-landscape-image {
    aspect-ratio: 16/10;
    margin: var(--space-sm) 0;
  }
  .daily-cards-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xs);
  }
  .concept-cards-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  .why-bio-grid {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }
  .treatment-visual-img-wrap {
    aspect-ratio: 16/10;
  }
}

/* ===== 9. Access Vertical Layout (Pamphlet Stack) ===== */
.access-vertical-layout {
  max-width: 700px;
  margin: var(--space-md) auto 0 auto;
  background-color: var(--color-ivory);
  border: 1px solid var(--border-color);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.access-item-block {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: var(--space-xxs);
  font-size: 0.95rem;
  line-height: 1.6;
}

.access-item-label {
  font-weight: 600;
  color: var(--color-forest);
  width: 120px;
  flex-shrink: 0;
}

.access-item-value {
  color: var(--text-secondary);
  text-align: right;
  flex-grow: 1;
}

.access-item-value a {
  color: inherit;
  text-decoration: none;
}

.access-map-block {
  margin-top: var(--space-xs);
  width: 100%;
}

@media (max-width: 640px) {
  .access-vertical-layout {
    padding: var(--space-sm);
  }
  .access-item-block {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
  .access-item-value {
    text-align: left;
  }
}

/* Homepage Menu Intro Text */
.menu-intro-text {
  max-width: 600px;
  margin: var(--space-xs) auto 0 auto;
  font-size: 0.9rem;
  line-height: 1.6;
  text-align: center;
}

@media (max-width: 640px) {
  .menu-intro-text {
    max-width: 290px;
    font-size: 0.88rem;
    line-height: 1.75;
    letter-spacing: 0.02em;
  }
}