/* ===== Reset & base ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: #2b3a3f;
  background: #fafbfb;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { padding: 0; list-style: none; margin: 0; }

:root {
  --color-primary: #5dd4a8;        /* メイン：明るく爽やかなミント */
  --color-primary-dark: #2a9c75;   /* 見出し・本文強調（コントラスト確保） */
  --color-primary-light: #ddf6ea;  /* ライトミント（カード・パネル背景） */
  --color-mint: #a8e0c8;           /* 建物の色そのもの（装飾用） */
  --color-accent: #d8a657;         /* 温かみのあるゴールド */
  --color-text: #2b3a3f;
  --color-text-soft: #5b6a70;
  --color-bg: #fafbfb;
  --color-bg-alt: #f0f9f4;
  --color-border: #dceee5;
  --color-white: #ffffff;
  --shadow-sm: 0 2px 6px rgba(42, 156, 117, 0.08);
  --shadow-md: 0 8px 24px rgba(42, 156, 117, 0.14);
  --radius: 10px;
  --container: 1140px;
}

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  cursor: pointer;
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: var(--color-primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-ghost {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-ghost:hover { background: var(--color-primary); color: #fff; }
.btn-block { width: 100%; margin-top: 24px; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo { display: flex; align-items: center; gap: 12px; }
.logo-mark {
  width: 44px; height: 44px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: 50%;
}
.logo-mark svg { width: 28px; height: 28px; }
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-jp { font-family: "Noto Serif JP", serif; font-weight: 700; font-size: 1.05rem; color: var(--color-primary-dark); }
.logo-en { font-size: 0.7rem; color: var(--color-text-soft); letter-spacing: 0.08em; }

.site-nav ul { display: flex; align-items: center; gap: 28px; }
.site-nav a { font-size: 0.92rem; font-weight: 500; color: var(--color-text); position: relative; padding: 8px 0; }
.site-nav a::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transition: transform 0.2s ease;
}
.site-nav a:hover::after { transform: scaleX(1); }

.nav-tel a {
  background: var(--color-primary);
  color: #fff !important;
  padding: 10px 18px !important;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
}
.nav-tel a span { font-size: 0.7rem; opacity: 0.85; margin-right: 4px; }
.nav-tel a::after { display: none; }
.nav-tel a:hover { background: var(--color-primary-dark); }

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  cursor: pointer;
  padding: 0;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--color-primary-dark);
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Hero ===== */
.hero {
  position: relative;
  overflow: hidden;
  min-height: 720px;
  padding: 110px 24px 140px;
  display: flex;
  align-items: center;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 70%;
  display: block;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(255, 255, 255, 0.94) 0%,
    rgba(255, 255, 255, 0.78) 35%,
    rgba(255, 255, 255, 0.30) 68%,
    rgba(255, 255, 255, 0) 100%
  );
}
.hero-inner {
  max-width: var(--container);
  margin: 0 auto;
  position: relative;
  z-index: 1;
  width: 100%;
}
.hero-text { max-width: 600px; }
.hero-sub {
  font-size: 0.9rem;
  letter-spacing: 0.16em;
  color: var(--color-primary-dark);
  font-weight: 700;
  margin: 0 0 18px;
  text-shadow: 0 1px 2px rgba(255,255,255,0.6);
}
.hero-title {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(1.85rem, 4.6vw, 2.85rem);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--color-primary-dark);
  margin: 0 0 28px;
  text-shadow: 0 1px 3px rgba(255,255,255,0.55);
}
.br-sm { display: none; }
.hero-lead {
  font-size: 1rem;
  color: var(--color-text);
  margin: 0 0 40px;
  max-width: 560px;
  line-height: 1.9;
  text-shadow: 0 1px 2px rgba(255,255,255,0.5);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* ===== Info bar ===== */
.info-bar {
  background: var(--color-white);
  border-top: 4px solid var(--color-primary);
  box-shadow: var(--shadow-md);
  position: relative;
  margin-top: -50px;
  z-index: 5;
  border-radius: var(--radius);
  max-width: calc(var(--container) - 48px);
  margin-left: auto;
  margin-right: auto;
}
.info-bar-inner {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  padding: 24px 16px;
  align-items: center;
}
.info-item {
  padding: 14px 24px;
  border-right: 1px solid var(--color-border);
  text-align: center;
}
.info-item:last-child { border-right: none; }
.info-label {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--color-primary-dark);
  font-weight: 700;
  margin: 0 0 10px;
}
.info-value {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--color-text);
}
.info-tel .info-value a {
  font-family: "Noto Serif JP", serif;
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  letter-spacing: 0.04em;
  display: inline-block;
  line-height: 1.2;
}

/* ===== Section base ===== */
.section { padding: 90px 0; }
.section-head { text-align: center; margin-bottom: 56px; }
.eyebrow {
  font-size: 0.78rem;
  letter-spacing: 0.24em;
  color: var(--color-primary);
  font-weight: 700;
  margin: 0 0 12px;
}
.section-title {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(1.6rem, 3.5vw, 2.1rem);
  font-weight: 700;
  margin: 0;
  color: var(--color-primary-dark);
  position: relative;
  padding-bottom: 18px;
}
.section-title::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 50px; height: 2px;
  background: var(--color-accent);
}
.section-lead {
  margin: 22px auto 0;
  max-width: 640px;
  color: var(--color-text-soft);
  font-size: 0.98rem;
}

/* ===== About ===== */
.section-about { background: var(--color-white); }
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: start;
}
.about-text h3 {
  font-family: "Noto Serif JP", serif;
  font-size: 1.4rem;
  line-height: 1.6;
  color: var(--color-primary-dark);
  margin: 0 0 24px;
}
.about-text p { margin: 0 0 18px; color: var(--color-text-soft); }
.doctor-card {
  margin-top: 28px;
  padding: 20px 24px;
  background: var(--color-primary-light);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.doctor-label {
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 4px;
}
.doctor-name {
  font-family: "Noto Serif JP", serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin: 0;
  letter-spacing: 0.06em;
}
.doctor-name-en {
  display: inline-block;
  margin-left: 12px;
  font-family: "Noto Sans JP", sans-serif;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--color-text-soft);
  letter-spacing: 0.08em;
  vertical-align: middle;
}
.about-points { display: grid; gap: 20px; }
.about-points li {
  position: relative;
  background: var(--color-primary-light);
  border-radius: var(--radius);
  padding: 24px 24px 24px 90px;
}
.point-num {
  position: absolute;
  left: 24px;
  top: 24px;
  font-family: "Noto Serif JP", serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}
.about-points h4 { margin: 0 0 6px; font-size: 1.05rem; color: var(--color-primary-dark); }
.about-points p { margin: 0; font-size: 0.92rem; color: var(--color-text-soft); }

/* ===== Service ===== */
.section-service { background: var(--color-bg-alt); }
.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 36px 32px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  border-top: 3px solid var(--color-primary);
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.service-icon {
  width: 64px; height: 64px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.service-icon svg { width: 36px; height: 36px; }
.service-card h3 {
  font-family: "Noto Serif JP", serif;
  font-size: 1.3rem;
  margin: 0 0 12px;
  color: var(--color-primary-dark);
}
.service-desc { color: var(--color-text-soft); font-size: 0.94rem; margin: 0 0 18px; }
.service-list {
  border-top: 1px dashed var(--color-border);
  padding-top: 16px;
}
.service-list li {
  padding: 6px 0 6px 22px;
  position: relative;
  font-size: 0.93rem;
  color: var(--color-text);
}
.service-list li::before {
  content: '';
  position: absolute;
  left: 0; top: 14px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
}

/* ===== Hours ===== */
.section-hours { background: var(--color-white); }
.hours-wrap { max-width: 880px; margin: 0 auto; }
.hours-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.hours-table th, .hours-table td {
  padding: 16px 8px;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  font-size: 0.95rem;
}
.hours-table th:last-child, .hours-table td:last-child { border-right: none; }
.hours-table tbody tr:last-child th, .hours-table tbody tr:last-child td { border-bottom: none; }
.hours-table thead th {
  background: var(--color-primary);
  color: #fff;
  font-weight: 500;
  border-color: var(--color-primary-dark);
}
.hours-table tbody th {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  font-weight: 700;
  text-align: center;
}
.hours-table .th-sub {
  display: block;
  font-size: 0.72rem;
  font-weight: 500;
  margin-top: 4px;
  color: var(--color-text-soft);
  letter-spacing: 0.02em;
}
.hours-table td { color: var(--color-primary); font-weight: 700; }
.hours-table .td-mute { color: #c4cdd0; }
.hours-notes {
  margin-top: 28px;
  padding: 24px;
  background: var(--color-primary-light);
  border-radius: var(--radius);
  border-left: 4px solid var(--color-primary);
}
.hours-notes p { margin: 0 0 8px; }
.hours-notes p:last-child { margin-bottom: 0; }
.note-small { font-size: 0.85rem; color: var(--color-text-soft); }

/* ===== Reservation block ===== */
.reservation-block {
  margin-top: 36px;
  padding: 32px 32px 28px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.reservation-title {
  font-family: "Noto Serif JP", serif;
  font-size: 1.25rem;
  color: var(--color-primary-dark);
  margin: 0 0 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-primary-light);
  text-align: center;
}
.reservation-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.reservation-item {
  padding: 24px 24px 20px;
  border-radius: var(--radius);
  position: relative;
}
.reservation-walkin { background: var(--color-primary-light); border-left: 4px solid var(--color-primary); }
.reservation-booking { background: #fff7ec; border-left: 4px solid var(--color-accent); }
.reservation-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 4px 12px;
  border-radius: 999px;
  margin: 0 0 12px;
}
.reservation-walkin .reservation-tag { background: var(--color-primary); color: #fff; }
.reservation-booking .reservation-tag { background: var(--color-accent); color: #fff; }
.reservation-item h4 {
  font-family: "Noto Serif JP", serif;
  font-size: 1.15rem;
  color: var(--color-primary-dark);
  margin: 0 0 10px;
}
.reservation-item p {
  font-size: 0.94rem;
  color: var(--color-text);
  margin: 0 0 12px;
  line-height: 1.75;
}
.reservation-tel {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
  font-family: "Noto Serif JP", serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  letter-spacing: 0.04em;
}
.reservation-tel:hover { color: var(--color-primary); }

/* ===== Page hero (sub pages) ===== */
.page-hero {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, #f0f9f4 100%);
  padding: 70px 24px 64px;
  position: relative;
}
.page-hero .breadcrumb {
  margin-bottom: 24px;
  font-size: 0.85rem;
}
.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
.breadcrumb li {
  display: inline-flex;
  align-items: center;
  color: var(--color-text-soft);
}
.breadcrumb li:not(:last-child)::after {
  content: '›';
  margin-left: 10px;
  color: var(--color-text-soft);
  opacity: 0.6;
}
.breadcrumb a {
  color: var(--color-primary-dark);
  text-decoration: none;
  transition: opacity 0.15s ease;
}
.breadcrumb a:hover { opacity: 0.7; text-decoration: underline; }
.breadcrumb [aria-current="page"] {
  color: var(--color-text);
  font-weight: 500;
}
.page-title {
  font-family: "Noto Serif JP", serif;
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 700;
  color: var(--color-primary-dark);
  margin: 8px 0 18px;
  letter-spacing: 0.02em;
}
.page-lead {
  font-size: 0.98rem;
  color: var(--color-text-soft);
  max-width: 760px;
  line-height: 1.9;
  margin: 0;
}
.br-pc { display: inline; }
@media (max-width: 700px) { .br-pc { display: none; } }
.page-back {
  margin-top: 40px;
  text-align: center;
  padding-top: 32px;
  border-top: 1px dashed var(--color-border);
}

[aria-current="page"] { color: var(--color-primary-dark); font-weight: 700; }
.site-nav a[aria-current="page"]::after { transform: scaleX(1); }

/* ===== Medical DX section ===== */
.section-dx {
  background: linear-gradient(180deg, var(--color-white) 0%, #f0f9f4 100%);
}
.dx-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 28px;
}
.dx-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px 22px 24px;
  text-align: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  position: relative;
}
.dx-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-light);
}
.dx-icon {
  width: 64px; height: 64px;
  margin: 0 auto 16px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.dx-icon svg { width: 32px; height: 32px; }
.dx-card h3 {
  font-family: "Noto Serif JP", serif;
  font-size: 1.05rem;
  margin: 0 0 12px;
  color: var(--color-primary-dark);
  line-height: 1.5;
}
.dx-sub {
  display: block;
  font-family: "Noto Sans JP", sans-serif;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--color-text-soft);
  letter-spacing: 0.06em;
  margin-top: 4px;
}
.dx-card p {
  font-size: 0.86rem;
  color: var(--color-text-soft);
  margin: 0;
  line-height: 1.7;
  text-align: left;
}
.dx-note {
  font-size: 0.82rem;
  color: var(--color-text-soft);
  text-align: center;
  max-width: 880px;
  margin: 0 auto;
  padding-top: 16px;
  border-top: 1px dashed var(--color-border);
  line-height: 1.8;
}

/* ===== About photo ===== */
.about-photo {
  margin: 32px 0 0;
  padding: 0;
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.about-photo svg {
  display: block;
  width: 100%;
  height: auto;
}
.photo-caption {
  position: absolute;
  bottom: 12px;
  right: 12px;
  background: rgba(255,255,255,0.9);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.75rem;
  color: var(--color-text-soft);
  letter-spacing: 0.04em;
}

/* ===== Flow ===== */
.section-flow { background: var(--color-bg-alt); }
.flow-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1080px;
  margin: 0 auto 48px;
}
.flow-list li {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 30px 24px 26px;
  text-align: center;
  position: relative;
  box-shadow: var(--shadow-sm);
}
.flow-num {
  position: absolute;
  top: -18px;
  left: 50%;
  transform: translateX(-50%);
  width: 40px; height: 40px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: "Noto Serif JP", serif;
  font-weight: 700;
  font-size: 1.2rem;
  box-shadow: var(--shadow-sm);
}
.flow-list h3 {
  font-family: "Noto Serif JP", serif;
  font-size: 1.05rem;
  margin: 14px 0 10px;
  color: var(--color-primary-dark);
}
.flow-list p { margin: 0; font-size: 0.88rem; color: var(--color-text-soft); line-height: 1.7; }
.flow-notes {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 28px 32px;
  max-width: 720px;
  margin: 0 auto;
  box-shadow: var(--shadow-sm);
}
.flow-notes h4 {
  font-family: "Noto Serif JP", serif;
  font-size: 1.1rem;
  color: var(--color-primary-dark);
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-primary-light);
}
.flow-notes ul li {
  padding: 6px 0 6px 22px;
  position: relative;
  font-size: 0.95rem;
}
.flow-notes ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}

/* ===== Access ===== */
.section-access { background: var(--color-white); }
.access-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 40px;
  align-items: start;
}
.access-info dl { margin: 0; border-top: 1px solid var(--color-border); }
.access-info dl > div {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 16px;
  padding: 18px 4px;
  border-bottom: 1px solid var(--color-border);
}
.access-info dt {
  font-size: 0.85rem;
  color: var(--color-primary);
  font-weight: 700;
  letter-spacing: 0.06em;
}
.access-info dd { margin: 0; font-size: 0.96rem; }
.access-info dd a { color: var(--color-primary-dark); font-weight: 700; }
.access-map iframe { border-radius: var(--radius); box-shadow: var(--shadow-sm); }

/* ===== Footer ===== */
.site-footer {
  background: #154434;
  color: #c8ddd0;
  padding: 60px 0 24px;
  margin-top: 0;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: start;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-name {
  font-family: "Noto Serif JP", serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
  margin: 0 0 12px;
}
.footer-doctor { margin: 4px 0 10px; font-size: 0.92rem; color: #d6ebde; letter-spacing: 0.04em; }
.footer-addr, .footer-tel { margin: 4px 0; font-size: 0.92rem; }
.footer-tel a { color: #fff; font-weight: 700; }
.footer-nav ul { display: flex; flex-wrap: wrap; gap: 8px 24px; }
.footer-nav a { font-size: 0.9rem; transition: color 0.2s; }
.footer-nav a:hover { color: #fff; }
.copyright {
  text-align: center;
  margin: 24px 0 0;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.06em;
}

/* ===== Back to top ===== */
.to-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 48px; height: 48px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.25s ease, transform 0.25s ease, background 0.2s ease;
  pointer-events: none;
  z-index: 50;
}
.to-top.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.to-top:hover { background: var(--color-primary-dark); }

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  .site-nav.open { max-height: 600px; }
  .site-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px 24px 24px;
  }
  .site-nav li { border-bottom: 1px solid var(--color-border); }
  .site-nav li:last-child { border-bottom: none; }
  .site-nav a { display: block; padding: 14px 0; }
  .site-nav a::after { display: none; }
  .nav-tel { margin-top: 12px; }
  .nav-tel a { display: inline-block; }

  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .service-grid { grid-template-columns: 1fr; }
  .flow-list { grid-template-columns: repeat(2, 1fr); }
  .access-grid { grid-template-columns: 1fr; }
  .info-bar-inner { grid-template-columns: 1fr; gap: 0; padding: 0; }
  .info-item { border-right: none; border-bottom: 1px solid var(--color-border); padding: 20px 24px; }
  .info-item:last-child { border-bottom: none; }
  .hero { padding: 90px 24px 110px; min-height: 720px; }
  .hero-overlay {
    background: linear-gradient(
      to bottom,
      rgba(255,255,255,0.18) 0%,
      rgba(255,255,255,0.45) 38%,
      rgba(255,255,255,0.92) 72%,
      rgba(255,255,255,0.97) 100%
    );
  }
  .hero-bg-img { object-fit: cover; object-position: center 55%; }
  .hero-inner { padding-top: 320px; }
  .hero-text { max-width: 100%; }
  .dx-grid { grid-template-columns: 1fr; max-width: 560px; margin-left: auto; margin-right: auto; }
}

@media (max-width: 600px) {
  .section { padding: 64px 0; }
  .hero { padding: 70px 24px 90px; min-height: 520px; }
  .hero-inner { padding-top: 160px; }
  .br-sm { display: inline; }
  .hero-actions .btn { flex: 1 1 100%; }
  .flow-list { grid-template-columns: 1fr; }
  .hours-table { font-size: 0.82rem; }
  .hours-table th, .hours-table td { padding: 12px 4px; }
  .access-info dl > div { grid-template-columns: 80px 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .info-bar { margin-top: -30px; }
  .info-tel .info-value a { font-size: 1.3rem; }
  .reservation-grid { grid-template-columns: 1fr; }
  .reservation-block { padding: 24px 20px; }
  .dx-grid { grid-template-columns: 1fr; }
}

/* ===== News（お知らせ）===== */
.container-narrow { max-width: 860px; }

.section-news { padding-top: 56px; padding-bottom: 56px; }
.section-news .section-head { margin-bottom: 28px; }

.news-list {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.news-list li:not(:last-child) { border-bottom: 1px solid var(--color-border); }
.news-link {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 18px 24px;
  transition: background 0.2s ease;
}
.news-link:hover { background: var(--color-bg-alt); }
.news-link time {
  flex-shrink: 0;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  font-variant-numeric: tabular-nums;
}
.news-link .news-title {
  flex: 1;
  font-size: 0.95rem;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.news-link .news-arrow {
  flex-shrink: 0;
  color: var(--color-primary);
  display: inline-flex;
}
.news-more { text-align: center; margin-top: 28px; }

.section-news-page { padding-top: 56px; }
.news-empty {
  text-align: center;
  color: var(--color-text-soft);
  padding: 48px 0;
}
.news-date {
  margin: 12px 0 0;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-primary-dark);
}
.news-body {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 36px 40px;
  font-size: 0.97rem;
}
.news-body p { margin: 0 0 1.2em; }
.news-body p:last-child { margin-bottom: 0; }
.news-body h2, .news-body h3 {
  color: var(--color-primary-dark);
  margin: 1.6em 0 0.6em;
  line-height: 1.5;
}
.news-body h2 { font-size: 1.15rem; }
.news-body h3 { font-size: 1.02rem; }
.news-body ul { list-style: disc; padding-left: 1.4em; margin: 0 0 1.2em; }
.news-body ol { list-style: decimal; padding-left: 1.4em; margin: 0 0 1.2em; }
.news-body a { color: var(--color-primary-dark); text-decoration: underline; }
.news-body img { border-radius: var(--radius); margin: 12px 0; }
.news-body strong { font-weight: 700; }

.about-photo {
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  margin: 8px 0 20px;
}

@media (max-width: 640px) {
  .news-link { padding: 16px 18px; gap: 14px; flex-wrap: wrap; }
  .news-link time { font-size: 0.82rem; }
  .news-link .news-title { flex-basis: 100%; order: 3; }
  .news-body { padding: 24px 20px; }
}