/* =====================================================
   きたやま矯正歯科 — Editorial Magazine Style
   Inspired by 暮しの手帖 / dancyu
   Palette: 白 × 墨 × シルバー
   ===================================================== */

:root {
  /* Editorial palette */
  --paper:        #fafaf7;        /* warm white paper */
  --paper-cream:  #f4f1ea;        /* slightly cream subtle */
  --paper-soft:   #f7f5f0;        /* between paper and cream */
  --ink:          #1a1a1a;        /* deep sumi black */
  --ink-strong:   #0e0e0e;        /* near-black for headlines */
  --ink-sub:      #4a4a4a;        /* mid grey for body */
  --ink-muted:    #767676;        /* meta text */
  --silver:       #b8b3a8;        /* warm silver / iron */
  --silver-cool:  #c5c5c5;        /* cool silver */
  --silver-soft:  #e6e3dc;        /* hairline tint */
  --line:         #d6d2c8;        /* subtle line */
  --line-soft:    #ece9e1;        /* very faint line */
  --accent:       #5a544a;        /* warm dark grey accent */
  --warn:         #8a3a2e;        /* sumi-red for marks */

  /* Type families */
  --font-display:   'Cormorant Garamond', 'Noto Serif JP', serif;
  --font-jp-serif:  'Noto Serif JP', 'Yu Mincho', '游明朝', serif;
  --font-en-deco:   'Cormorant Garamond', serif;
  --font-jp-sans:   'Noto Sans JP', -apple-system, sans-serif;
  --font-sans:      'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
section[id] { scroll-margin-top: 80px; }
@media (max-width: 768px) { section[id] { scroll-margin-top: 70px; } }

body {
  margin: 0; padding: 0;
  font-family: var(--font-jp-serif);
  font-weight: 400;
  color: var(--ink);
  background: var(--paper);
  line-height: 2.0;
  letter-spacing: 0.04em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

.sp-only { display: none; }
@media (max-width: 768px) {
  .sp-only { display: inline; }
  .pc-only { display: none; }
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 32px; }
@media (max-width: 768px) { .wrap { padding: 0 22px; } }
section { padding: 120px 0; }
@media (max-width: 768px) { section { padding: 72px 0; } }

/* =====================================================
   NAV
   ===================================================== */
.nav-wrap {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250, 250, 247, 0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line-soft);
}
.nav { height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.nav-brand { display: flex; flex-direction: column; gap: 2px; }
.nav-brand__en {
  font-family: var(--font-en-deco); font-style: italic;
  font-weight: 400; font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--silver);
}
.nav-brand__jp {
  font-family: var(--font-jp-serif); font-weight: 600;
  font-size: 16px; letter-spacing: 0.10em;
  color: var(--ink-strong);
}
.nav-links {
  display: flex; gap: 26px;
  font-family: var(--font-jp-serif); font-weight: 400;
  font-size: 13px; letter-spacing: 0.10em;
  color: var(--ink);
}
.nav-links a { transition: color 0.2s ease; padding: 6px 0; border-bottom: 1px solid transparent; }
.nav-links a:hover { color: var(--accent); border-bottom-color: var(--ink); }
.nav-cta {
  font-family: var(--font-en-deco);
  font-weight: 400; font-size: 12px;
  letter-spacing: 0.20em; text-transform: uppercase;
  padding: 11px 22px;
  border: 1px solid var(--ink-strong);
  color: var(--ink-strong); background: transparent;
  transition: all 0.25s ease;
}
.nav-cta:hover { background: var(--ink-strong); color: var(--paper); }
@media (max-width: 1024px) { .nav-links { display: none; } }
@media (max-width: 768px) {
  .nav { height: 62px; }
  .nav-brand__en { font-size: 9px; letter-spacing: 0.14em; }
  .nav-brand__jp { font-size: 14px; }
  .nav-cta { font-size: 10px; padding: 9px 14px; letter-spacing: 0.16em; }
}

/* =====================================================
   EDITORIAL HELPERS
   ===================================================== */
.chapter-meta {
  display: flex; align-items: center; gap: 14px;
  margin: 0 0 28px;
  font-family: var(--font-en-deco);
  font-style: italic; font-weight: 400;
  font-size: 13px; letter-spacing: 0.04em;
  color: var(--silver);
  justify-content: center;
}
.chapter-meta__line {
  flex: 0 0 40px; height: 1px; background: var(--silver);
}
.chapter-meta__num {
  font-style: italic;
  font-size: 14px;
  letter-spacing: 0.04em;
}

.chapter-numero {
  font-family: var(--font-en-deco);
  font-weight: 300; font-size: clamp(64px, 8vw, 96px);
  letter-spacing: -0.04em; line-height: 1;
  color: var(--silver-cool);
  margin: 0 0 12px;
  font-variant-numeric: tabular-nums;
  text-align: center;
}

.chapter-title {
  font-family: var(--font-jp-serif); font-weight: 600;
  font-size: clamp(26px, 3.4vw, 36px);
  letter-spacing: 0.08em; line-height: 1.55;
  color: var(--ink-strong);
  margin: 0 0 24px;
  text-align: center;
}
.chapter-title__en {
  display: block;
  font-family: var(--font-en-deco); font-style: italic;
  font-weight: 300;
  font-size: clamp(15px, 1.7vw, 18px);
  letter-spacing: 0.04em;
  color: var(--silver);
  margin-top: 14px;
  line-height: 1.4;
}
.chapter-lead {
  max-width: 640px; margin: 0 auto;
  text-align: center;
  font-size: clamp(14px, 1.5vw, 15.5px);
  line-height: 2.0; color: var(--ink-sub);
  letter-spacing: 0.06em;
}

.hr-editorial {
  border: 0; height: 1px; background: var(--line);
  max-width: 80px; margin: 32px auto;
}

/* =====================================================
   HERO — editorial cover style
   ===================================================== */
.hero {
  position: relative; padding: 0;
  background: var(--paper);
  border-bottom: 1px solid var(--line-soft);
}
.hero__bg { display: none; }
.hero__inner {
  max-width: 920px; margin: 0 auto;
  padding: 100px 32px 100px;
  text-align: center;
  position: relative;
}
.hero__overline {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 14px; margin: 0 0 36px;
}
.hero__overline-line {
  width: 32px; height: 1px; background: var(--silver);
}
.hero__overline-text {
  font-family: var(--font-en-deco); font-style: italic;
  font-weight: 400; font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--silver);
  text-transform: none;
}
.hero__h1 {
  font-family: var(--font-jp-serif); font-weight: 600;
  font-size: clamp(28px, 4.2vw, 50px);
  letter-spacing: 0.10em; line-height: 1.65;
  margin: 0 0 32px;
  color: var(--ink-strong);
}
.hero__h1 .em {
  background: linear-gradient(transparent 65%, var(--silver-soft) 65%);
  padding: 0 4px;
}
.hero__sub {
  font-family: var(--font-en-deco); font-style: italic;
  font-weight: 300;
  font-size: clamp(15px, 1.8vw, 19px);
  letter-spacing: 0.04em; color: var(--ink-muted);
  margin: 0 0 40px;
}
.hero__divider {
  width: 32px; height: 1px; background: var(--ink-strong);
  margin: 0 auto 36px;
}
.hero__caption {
  font-size: 14.5px; letter-spacing: 0.08em;
  color: var(--ink-sub); line-height: 2.1;
  margin: 0 0 48px;
}
.hero__cta {
  display: inline-block;
  font-family: var(--font-en-deco);
  font-weight: 400; font-size: 13px;
  letter-spacing: 0.30em; text-transform: uppercase;
  padding: 18px 48px;
  border: 1px solid var(--ink-strong);
  color: var(--ink-strong);
  transition: all 0.3s ease;
}
.hero__cta:hover { background: var(--ink-strong); color: var(--paper); }
.hero__scroll { display: none; }
@media (max-width: 768px) {
  .hero__inner { padding: 60px 22px 56px; }
  .hero__overline-line { width: 22px; }
  .hero__overline-text { font-size: 11px; letter-spacing: 0.12em; }
  .hero__h1 { letter-spacing: 0.06em; line-height: 1.7; }
  .hero__sub { font-size: 13px; }
  .hero__caption { font-size: 13px; }
  .hero__cta { padding: 16px 32px; font-size: 11px; letter-spacing: 0.22em; }
}

/* =====================================================
   ABOUT
   ===================================================== */
#about { background: var(--paper); }
.about-grid {
  display: grid; grid-template-columns: 1fr 1.4fr; gap: 80px;
  align-items: start; max-width: 1000px; margin: 56px auto 0;
}
.about-statement {
  font-family: var(--font-jp-serif); font-weight: 500;
  font-size: clamp(18px, 2.0vw, 24px); line-height: 2.0;
  letter-spacing: 0.10em;
  color: var(--ink-strong);
  border-left: 2px solid var(--ink-strong);
  padding-left: 22px;
  margin: 0;
}
.about-statement strong {
  font-weight: 600; color: var(--ink-strong);
  background: linear-gradient(transparent 70%, var(--silver-soft) 70%);
  padding: 0 2px;
}
.about-body p {
  font-size: 15px; line-height: 2.05;
  color: var(--ink-sub); letter-spacing: 0.05em;
  margin: 0 0 22px;
}
.about-body p:last-child { margin-bottom: 0; }
@media (max-width: 768px) {
  .about-grid { grid-template-columns: 1fr; gap: 36px; }
  .about-statement { padding-left: 16px; }
}

/* =====================================================
   PRINCIPLES
   ===================================================== */
#principles { background: var(--paper-cream); }
.principles-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0;
  margin: 60px auto 0; max-width: 1000px;
}
.principle {
  padding: 48px 36px;
  text-align: center;
  border-right: 1px solid var(--line);
  background: var(--paper-cream);
  position: relative;
}
.principle:last-child { border-right: none; }
.principle__num {
  display: inline-block;
  font-family: var(--font-en-deco); font-weight: 300;
  font-size: 32px; color: var(--silver);
  letter-spacing: 0.04em;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 22px;
  min-width: 56px;
}
.principle__title {
  font-family: var(--font-jp-serif); font-weight: 600;
  font-size: 17px; letter-spacing: 0.10em;
  color: var(--ink-strong);
  margin: 0 0 16px;
}
.principle__desc {
  font-size: 13.5px; color: var(--ink-sub);
  line-height: 1.95; letter-spacing: 0.04em;
  margin: 0;
}
@media (max-width: 768px) {
  .principles-grid { grid-template-columns: 1fr; }
  .principle { border-right: none; border-bottom: 1px solid var(--line); padding: 36px 24px; }
  .principle:last-child { border-bottom: none; }
}

/* =====================================================
   DOCTOR
   ===================================================== */
#doctor { background: var(--paper); }
.doctor-layout {
  display: grid; grid-template-columns: 0.9fr 1.2fr; gap: 64px;
  align-items: start; max-width: 1000px; margin: 56px auto 0;
}
.doctor-portrait { margin: 0; position: relative; }
.doctor-portrait__frame {
  position: relative;
  background: var(--paper-cream);
  padding: 14px;
}
.doctor-portrait__frame::after {
  content: ''; position: absolute;
  inset: 22px;
  border: 1px solid var(--silver-soft);
  pointer-events: none;
}
.doctor-portrait__frame img {
  width: 100%; height: auto;
  filter: brightness(1.02) saturate(0.95);
}
.doctor-info { padding-top: 8px; }
.doctor-info__name-en {
  font-family: var(--font-en-deco); font-style: italic;
  font-weight: 300; font-size: 15px;
  letter-spacing: 0.10em; color: var(--silver);
  margin: 0 0 8px;
}
.doctor-info__name {
  font-family: var(--font-jp-serif); font-weight: 600;
  font-size: clamp(26px, 3.0vw, 32px);
  letter-spacing: 0.16em; line-height: 1.4;
  color: var(--ink-strong);
  margin: 0 0 8px;
}
.doctor-info__title {
  font-size: 13px; letter-spacing: 0.10em;
  color: var(--ink-muted);
  margin: 0 0 28px;
}
.doctor-info__divider {
  width: 32px; height: 1px; background: var(--ink-strong);
  margin: 0 0 28px;
}
.doctor-info__quote {
  font-family: var(--font-jp-serif); font-weight: 400;
  font-size: clamp(15px, 1.6vw, 17px); line-height: 2.0;
  color: var(--ink); letter-spacing: 0.06em;
  background: var(--paper-cream);
  padding: 22px 26px;
  border-left: 2px solid var(--silver);
  margin: 0 0 32px;
}
.doctor-info__cv {
  display: grid; gap: 18px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.doctor-info__cv-row {
  display: grid; grid-template-columns: 92px 1fr; gap: 22px;
  font-size: 13px; line-height: 1.9;
}
.doctor-info__cv-label {
  font-family: var(--font-en-deco); font-style: italic;
  font-size: 12px; letter-spacing: 0.10em;
  color: var(--silver);
}
.doctor-info__cv-text { color: var(--ink-sub); letter-spacing: 0.04em; }
@media (max-width: 768px) {
  .doctor-layout { grid-template-columns: 1fr; gap: 36px; }
  .doctor-info__cv-row { grid-template-columns: 80px 1fr; gap: 14px; }
}

/* =====================================================
   TREATMENTS
   ===================================================== */
#treatments { background: var(--paper-cream); }
.treatments-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px;
  max-width: 1000px; margin: 56px auto 0;
}
.treatment {
  background: var(--paper);
  padding: 44px 36px;
  border: 1px solid var(--line-soft);
  position: relative;
  transition: border-color 0.25s ease;
  display: block;
}
.treatment:hover { border-color: var(--silver); }
.treatment__num {
  position: absolute; top: 22px; right: 28px;
  font-family: var(--font-en-deco); font-style: italic;
  font-weight: 400; font-size: 13px;
  color: var(--silver); letter-spacing: 0.10em;
}
.treatment__cat {
  font-family: var(--font-en-deco); font-style: italic;
  font-weight: 400; font-size: 12px;
  color: var(--silver); letter-spacing: 0.06em;
  margin-bottom: 14px;
}
.treatment__title {
  font-family: var(--font-jp-serif); font-weight: 600;
  font-size: clamp(20px, 2.2vw, 24px);
  letter-spacing: 0.08em; line-height: 1.5;
  color: var(--ink-strong);
  margin: 0 0 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-soft);
}
.treatment__desc {
  font-size: 13.5px; line-height: 1.95;
  color: var(--ink-sub); letter-spacing: 0.04em;
  margin: 0 0 24px;
}
.treatment__features { list-style: none; padding: 0; margin: 0; }
.treatment__features li {
  font-size: 12.5px; line-height: 1.85;
  color: var(--ink-sub); letter-spacing: 0.04em;
  padding: 6px 0 6px 16px; position: relative;
}
.treatment__features li::before {
  content: '·'; position: absolute; left: 4px;
  color: var(--silver); font-weight: 700;
}
@media (max-width: 768px) {
  .treatments-grid { grid-template-columns: 1fr; gap: 16px; }
  .treatment { padding: 32px 24px; }
}

/* =====================================================
   APPLIANCES
   ===================================================== */
#appliances { background: var(--paper); }
.appliance-list { max-width: 880px; margin: 56px auto 0; }
.appliance {
  display: grid; grid-template-columns: 64px 1fr 160px; gap: 32px;
  padding: 32px 0;
  border-top: 1px solid var(--line);
  align-items: baseline;
}
.appliance:last-child { border-bottom: 1px solid var(--line); }
.appliance__no {
  font-family: var(--font-en-deco); font-weight: 300;
  font-size: 26px; color: var(--silver);
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
}
.appliance__title {
  font-family: var(--font-jp-serif); font-weight: 600;
  font-size: 17px; letter-spacing: 0.08em;
  color: var(--ink-strong); margin: 0 0 6px;
}
.appliance__desc {
  font-size: 13px; color: var(--ink-sub);
  line-height: 1.95; letter-spacing: 0.04em;
  margin: 0;
}
.appliance__tag {
  font-family: var(--font-en-deco); font-style: italic;
  font-size: 12px; letter-spacing: 0.10em;
  color: var(--silver);
  text-align: right;
}
@media (max-width: 768px) {
  .appliance { grid-template-columns: 40px 1fr; gap: 14px; padding: 24px 0; }
  .appliance__tag { grid-column: 1 / -1; text-align: left; padding-left: 54px; }
}

/* =====================================================
   PRICING
   ===================================================== */
#pricing { background: var(--paper-cream); }
.pricing-table {
  max-width: 820px; margin: 56px auto 0;
  background: var(--paper);
  border: 1px solid var(--line);
}
.pricing-row {
  display: grid; grid-template-columns: 1fr 200px;
  padding: 24px 32px;
  border-bottom: 1px solid var(--line-soft);
  align-items: baseline;
}
.pricing-row:last-child { border-bottom: none; }
.pricing-row--header {
  background: var(--paper-soft);
  border-bottom: 1px solid var(--line);
}
.pricing-row__label { display: flex; flex-direction: column; gap: 4px; }
.pricing-row__label-en {
  font-family: var(--font-en-deco); font-style: italic;
  font-weight: 400; font-size: 12px;
  color: var(--silver); letter-spacing: 0.06em;
}
.pricing-row__label-jp {
  font-family: var(--font-jp-serif); font-weight: 600;
  font-size: 16px; letter-spacing: 0.08em;
  color: var(--ink-strong);
}
.pricing-row__amount {
  font-family: var(--font-en-deco); font-weight: 400;
  font-size: 22px; letter-spacing: 0.02em;
  color: var(--ink-strong); text-align: right;
  font-variant-numeric: tabular-nums;
}
.pricing-row__amount small {
  font-size: 12px; color: var(--ink-muted);
  margin-left: 4px;
}
.pricing-note {
  max-width: 820px; margin: 24px auto 0;
  font-size: 12px; color: var(--ink-muted);
  line-height: 2.0; letter-spacing: 0.04em;
  text-align: left;
}
@media (max-width: 768px) {
  .pricing-row { grid-template-columns: 1fr; gap: 6px; padding: 20px 22px; }
  .pricing-row__amount { text-align: left; }
}

/* =====================================================
   FLOW
   ===================================================== */
#flow { background: var(--paper); }
.flow-list {
  list-style: none; padding: 0; margin: 56px auto 0;
  max-width: 880px;
}
.flow-item {
  display: grid; grid-template-columns: 80px 1fr; gap: 36px;
  padding: 36px 0;
  border-top: 1px solid var(--line);
  align-items: start;
}
.flow-item:last-child { border-bottom: 1px solid var(--line); }
.flow-item__no {
  font-family: var(--font-en-deco); font-weight: 300;
  font-size: 32px; color: var(--silver);
  letter-spacing: 0.04em; line-height: 1.0;
  font-variant-numeric: tabular-nums;
}
.flow-item__no::before { content: '0'; opacity: 0.55; }
.flow-item__step {
  font-family: var(--font-en-deco); font-style: italic;
  font-size: 12px; letter-spacing: 0.10em;
  color: var(--silver);
  margin-bottom: 8px;
}
.flow-item__title {
  font-family: var(--font-jp-serif); font-weight: 600;
  font-size: 17px; letter-spacing: 0.08em;
  color: var(--ink-strong); margin: 0 0 12px;
}
.flow-item__desc {
  font-size: 13.5px; line-height: 2.0;
  color: var(--ink-sub); letter-spacing: 0.04em;
  margin: 0;
}
@media (max-width: 768px) {
  .flow-item { grid-template-columns: 50px 1fr; gap: 16px; padding: 28px 0; }
  .flow-item__no { font-size: 26px; }
}

/* =====================================================
   AGES
   ===================================================== */
#ages { background: var(--paper-cream); }
.ages-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  max-width: 1000px; margin: 56px auto 0;
}
.age-card {
  background: var(--paper-cream); padding: 40px 24px;
  text-align: center;
  border-right: 1px solid var(--line);
}
.age-card:last-child { border-right: none; }
.age-card__roman {
  font-family: var(--font-en-deco); font-style: italic;
  font-weight: 400; font-size: 13px;
  color: var(--silver);
  letter-spacing: 0.10em;
  margin-bottom: 16px;
}
.age-card__age {
  font-family: var(--font-en-deco); font-weight: 300;
  font-size: 30px; color: var(--ink-strong);
  letter-spacing: -0.02em; line-height: 1.0;
  margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
}
.age-card__age small {
  font-family: var(--font-jp-serif);
  font-size: 13px; letter-spacing: 0.04em;
  color: var(--ink-sub);
}
.age-card__title {
  font-family: var(--font-jp-serif); font-weight: 600;
  font-size: 14px; letter-spacing: 0.10em;
  color: var(--ink-strong);
  margin: 18px 0 12px;
}
.age-card__desc {
  font-size: 12px; color: var(--ink-sub);
  line-height: 1.95; letter-spacing: 0.04em;
  margin: 0;
}
@media (max-width: 768px) {
  .ages-grid { grid-template-columns: 1fr 1fr; }
  .age-card { border-right: none; border-bottom: 1px solid var(--line); }
  .age-card:nth-child(odd) { border-right: 1px solid var(--line); }
  .age-card:nth-last-child(-n+2) { border-bottom: none; }
}

/* =====================================================
   ACCESS
   ===================================================== */
#access { background: var(--paper); }
.access-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 64px;
  max-width: 1000px; margin: 56px auto 0;
  align-items: start;
}
.access-info dl {
  display: grid; grid-template-columns: 110px 1fr;
  gap: 18px 24px; margin: 0;
}
.access-info dt {
  font-family: var(--font-en-deco); font-style: italic;
  font-size: 12px; letter-spacing: 0.10em;
  color: var(--silver);
  padding-top: 4px;
}
.access-info dd {
  margin: 0;
  font-size: 14.5px; line-height: 1.95;
  color: var(--ink); letter-spacing: 0.04em;
}
.access-info dd strong {
  font-family: var(--font-en-deco); font-weight: 400;
  font-size: 22px; color: var(--ink-strong);
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
}
.schedule-table {
  margin-top: 28px;
  width: 100%; border-collapse: collapse;
  font-family: var(--font-jp-serif);
}
.schedule-table th, .schedule-table td {
  padding: 10px 6px; text-align: center;
  font-size: 13px; letter-spacing: 0.04em;
  border-bottom: 1px solid var(--line-soft);
}
.schedule-table th {
  font-weight: 600; color: var(--ink-sub);
  font-size: 11px; letter-spacing: 0.14em;
  border-bottom: 1px solid var(--silver);
}
.schedule-table td.closed { color: var(--silver); }
.access-map {
  width: 100%; aspect-ratio: 4/3;
  border: 1px solid var(--line);
  background: var(--paper-cream);
  position: relative; overflow: hidden;
}
.access-map iframe {
  width: 100%; height: 100%; border: 0;
  filter: grayscale(0.95) contrast(0.95) brightness(0.98);
}
@media (max-width: 768px) {
  .access-grid { grid-template-columns: 1fr; gap: 36px; }
  .access-info dl { grid-template-columns: 80px 1fr; gap: 16px 18px; }
}

/* =====================================================
   CONTACT
   ===================================================== */
#contact { background: var(--paper); text-align: center; }
.contact-card {
  max-width: 680px; margin: 56px auto 0;
  padding: 56px 44px;
  background: var(--paper-cream);
  border: 1px solid var(--line);
}
.contact-card__overline {
  font-family: var(--font-en-deco); font-style: italic;
  font-size: 14px; letter-spacing: 0.04em;
  color: var(--silver); margin: 0 0 16px;
}
.contact-card__heading {
  font-family: var(--font-jp-serif); font-weight: 600;
  font-size: clamp(20px, 2.2vw, 24px); letter-spacing: 0.10em;
  line-height: 1.7; color: var(--ink-strong);
  margin: 0 0 28px;
}
.contact-card__divider {
  width: 32px; height: 1px; background: var(--ink-strong);
  margin: 0 auto 28px;
}
.contact-card__phone {
  font-family: var(--font-en-deco); font-weight: 400;
  font-size: clamp(34px, 4.6vw, 48px);
  letter-spacing: 0.04em; color: var(--ink-strong);
  font-variant-numeric: tabular-nums;
  margin: 0 0 12px;
  display: block;
}
.contact-card__phone-label {
  font-size: 12px; letter-spacing: 0.16em;
  color: var(--ink-muted);
  margin: 0 0 32px;
}
.contact-card__hours {
  font-size: 12.5px; letter-spacing: 0.06em;
  color: var(--ink-sub); line-height: 2.0;
  margin: 0;
}
@media (max-width: 768px) {
  .contact-card { padding: 40px 26px; }
}

/* =====================================================
   FOOTER
   ===================================================== */
footer {
  background: var(--paper-cream);
  border-top: 1px solid var(--line);
  color: var(--ink-sub);
  padding: 56px 0 36px;
}
.footer-inner {
  display: grid; grid-template-columns: 1fr 1fr; gap: 36px;
  max-width: 1080px; margin: 0 auto;
  padding: 0 32px;
}
.footer-brand__en {
  font-family: var(--font-en-deco); font-style: italic;
  font-size: 12px; letter-spacing: 0.16em;
  color: var(--silver);
  margin: 0 0 8px;
}
.footer-brand__jp {
  font-family: var(--font-jp-serif); font-weight: 600;
  font-size: 17px; letter-spacing: 0.10em;
  color: var(--ink-strong); margin: 0 0 16px;
}
.footer-brand__addr {
  font-size: 12.5px; line-height: 1.95;
  color: var(--ink-sub); letter-spacing: 0.04em;
}
.footer-links {
  display: grid; grid-template-columns: 1fr 1fr; gap: 10px 24px;
  font-size: 12.5px; letter-spacing: 0.04em;
}
.footer-links a {
  color: var(--ink-sub); transition: color 0.25s ease;
  border-bottom: 1px solid transparent;
}
.footer-links a:hover { color: var(--ink-strong); border-bottom-color: var(--silver); }
.footer-bottom {
  max-width: 1080px; margin: 36px auto 0;
  padding: 22px 32px 0;
  border-top: 1px solid var(--line);
  font-family: var(--font-en-deco); font-style: italic;
  font-size: 12px; letter-spacing: 0.10em;
  color: var(--silver); text-align: center;
}
@media (max-width: 768px) {
  .footer-inner { grid-template-columns: 1fr; gap: 28px; padding: 0 22px; }
  .footer-bottom { padding: 22px 22px 0; }
}

/* =====================================================
   PAGE HEADER
   ===================================================== */
.breadcrumb {
  background: var(--paper);
  border-bottom: 1px solid var(--line-soft);
  padding: 14px 0;
  font-family: var(--font-en-deco); font-style: italic;
  font-size: 12px; letter-spacing: 0.06em;
  color: var(--silver);
}
.breadcrumb a { color: var(--ink-sub); border-bottom: 1px solid transparent; transition: color 0.2s ease; }
.breadcrumb a:hover { color: var(--ink-strong); border-bottom-color: var(--silver); }
.breadcrumb .bc-sep { margin: 0 12px; color: var(--silver); }

.page-header {
  background: var(--paper-cream);
  padding: 96px 0 72px;
  border-bottom: 1px solid var(--line-soft);
}
.page-header .chapter-title { color: var(--ink-strong); }
.page-header .chapter-title__en { color: var(--silver); }
.page-header .chapter-lead { color: var(--ink-sub); }
@media (max-width: 768px) { .page-header { padding: 64px 0 48px; } }

/* =====================================================
   TOPNAV (homepage editorial index)
   ===================================================== */
.topnav-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0;
  max-width: 1080px; margin: 56px auto 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.topnav-card {
  background: var(--paper); padding: 40px 28px;
  display: flex; flex-direction: column; gap: 12px;
  text-decoration: none; color: inherit;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: background 0.25s ease;
  position: relative;
}
.topnav-card:hover { background: var(--paper-cream); }
.topnav-card__no {
  font-family: var(--font-en-deco); font-style: italic;
  font-weight: 400; font-size: 14px;
  letter-spacing: 0.10em;
  color: var(--silver);
}
.topnav-card__title {
  font-family: var(--font-jp-serif); font-weight: 600;
  font-size: 17px; letter-spacing: 0.08em;
  color: var(--ink-strong); margin: 0;
}
.topnav-card__desc {
  font-size: 13px; line-height: 1.95;
  color: var(--ink-sub); letter-spacing: 0.04em;
  margin: 0; flex: 1;
}
.topnav-card__more {
  font-family: var(--font-en-deco); font-style: italic;
  font-size: 12px; letter-spacing: 0.10em;
  color: var(--silver);
  margin-top: 6px;
  transition: color 0.25s ease;
}
.topnav-card:hover .topnav-card__more { color: var(--ink-strong); }
@media (max-width: 768px) {
  .topnav-grid { grid-template-columns: 1fr; }
  .topnav-card { padding: 28px 22px; }
}

/* =====================================================
   ARTICLE BODY
   ===================================================== */
.article-body {
  max-width: 720px; margin: 0 auto;
  font-family: var(--font-jp-serif);
  color: var(--ink); line-height: 2.05;
  letter-spacing: 0.05em;
}
.article-body p {
  font-size: 15.5px; line-height: 2.10;
  color: var(--ink); letter-spacing: 0.05em;
  margin: 0 0 24px;
}
.article-body .article-lead {
  font-size: clamp(16px, 1.85vw, 19px);
  line-height: 2.0; letter-spacing: 0.06em;
  color: var(--ink-strong);
  padding: 28px 32px;
  background: var(--paper-cream);
  border-left: 2px solid var(--ink-strong);
  margin: 0 0 56px;
  font-weight: 500;
}
.article-body h2 {
  font-family: var(--font-jp-serif); font-weight: 600;
  font-size: clamp(20px, 2.4vw, 25px); letter-spacing: 0.08em;
  color: var(--ink-strong);
  margin: 56px 0 22px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--ink-strong);
  position: relative;
}
.article-body h2::before {
  content: '§';
  display: inline-block;
  margin-right: 12px;
  font-family: var(--font-en-deco); font-style: italic;
  color: var(--silver); font-weight: 300;
}
.article-body h3 {
  font-family: var(--font-jp-serif); font-weight: 600;
  font-size: 16.5px; letter-spacing: 0.08em;
  color: var(--ink-strong);
  margin: 32px 0 12px;
  padding-left: 14px;
  border-left: 2px solid var(--silver);
}
.article-body .article-list {
  list-style: none; padding: 0; margin: 0 0 28px;
}
.article-body .article-list li {
  padding: 12px 0 12px 28px;
  position: relative;
  border-bottom: 1px solid var(--line-soft);
  font-size: 14.5px; letter-spacing: 0.04em;
}
.article-body .article-list li::before {
  content: '—'; position: absolute; left: 4px;
  color: var(--silver);
}
.article-body .article-list li:last-child { border-bottom: none; }

/* =====================================================
   CASES NOTE
   ===================================================== */
.cases-note {
  max-width: 700px; margin: 0 auto;
  text-align: center; padding: 64px 36px;
  background: var(--paper-cream);
  border: 1px solid var(--line);
}
.cases-note__lead {
  font-family: var(--font-en-deco); font-style: italic;
  font-size: 22px; color: var(--ink-strong);
  letter-spacing: 0.04em;
  margin: 0 0 24px;
}
.cases-note__body {
  font-size: 14px; line-height: 2.0;
  color: var(--ink-sub); letter-spacing: 0.04em;
  margin: 0 0 24px;
}
.cases-note__cta a {
  font-family: var(--font-en-deco); font-style: italic;
  font-size: 13px; letter-spacing: 0.16em;
  color: var(--ink-strong);
  border-bottom: 1px solid var(--ink-strong);
  padding-bottom: 4px;
}

/* =====================================================
   Mobile-friendly Japanese line breaking
   ===================================================== */
@media (max-width: 768px) {
  h1, h2, h3, h4, h5, h6,
  .chapter-title,
  .hero__h1,
  .article-body h2,
  .article-body h3,
  .article-body .article-lead,
  .doctor-info__name,
  .doctor-info__quote,
  .principle__title,
  .treatment__title,
  .topnav-card__title,
  .age-card__title,
  .appliance__title,
  .flow-item__title,
  .pricing-row__label-jp,
  .contact-card__heading {
    word-break: keep-all;
    overflow-wrap: anywhere;
    line-break: strict;
  }

  .article-body p,
  .article-body .article-list li,
  .principle__desc,
  .treatment__desc,
  .topnav-card__desc,
  .age-card__desc,
  .appliance__desc,
  .flow-item__desc,
  .doctor-info__title,
  .pricing-note,
  .cases-note__body,
  .footer-brand__addr {
    word-break: normal;
    overflow-wrap: break-word;
    line-break: strict;
  }
}

.phone-nb { white-space: nowrap; font-variant-numeric: tabular-nums; }