/* ===================================
   てつ加圧カイロ整体院
   スタイルシート
   =================================== */

/* --- リセット & 基本設定 --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-main: #0D95BD;
  --color-main-light: #E0F2F7;
  --color-main-dark: #0A7899;
  --color-sub: #15B3C4;
  --color-sub-dark: #0F96A5;
  --color-accent: #8CB8C5;
  --color-cta: #0D95BD;
  --color-cta-hover: #0A7899;
  --color-line: #06C755;
  --color-line-hover: #05a648;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-white: #FFFFFF;
  --color-bg: #F6FAFC;
  --color-bg-alt: #E0F2F7;
  --font-heading: "Poppins", "Noto Sans JP", sans-serif;
  --font-body: "Noto Sans JP", sans-serif;
  --font-catch: "Nunito", "Noto Sans JP", sans-serif;
  --header-height: 70px;
  --max-width: 1100px;
  --transition: 0.3s ease;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.8;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

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

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

ul, ol {
  list-style: none;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* --- ヘッダー --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  box-shadow: 0 1px 8px rgba(0, 0, 0, 0.06);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-main {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-main);
}

.logo-sub {
  font-family: var(--font-heading);
  font-size: 10px;
  color: var(--color-accent);
  letter-spacing: 0.05em;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-list a {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
  position: relative;
  white-space: nowrap;
}

.nav-list a:hover {
  color: var(--color-main);
}

.nav-list a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-main);
  transition: width var(--transition);
}

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

.nav-cta {
  background: var(--color-sub);
  color: var(--color-white) !important;
  padding: 8px 20px;
  border-radius: 30px;
  font-weight: 600;
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  background: var(--color-sub-dark);
  color: var(--color-white) !important;
}

/* ハンバーガーメニュー */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1010;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: var(--transition);
  border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* --- ヒーローセクション --- */
.hero {
  position: relative;
  margin-top: var(--header-height);
  height: 75vh;
  min-height: 440px;
  max-height: 650px;
  overflow: hidden;
}

.hero-slider {
  width: 100%;
  height: 100%;
  position: relative;
}

.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 0.8s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-slide::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 30, 55, 0.5);
}

.hero-slide.active {
  opacity: 1;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--color-white);
  padding: 0 20px;
  max-width: 720px;
}

.hero-kicker {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(4px);
  padding: 4px 16px;
  border-radius: 20px;
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.hero-title {
  font-family: var(--font-catch);
  font-size: 38px;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 16px;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
}

.hero-subtitle {
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 28px;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.hero-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-ghost {
  display: inline-block;
  padding: 12px 32px;
  border-radius: 30px;
  font-size: 15px;
  font-weight: 600;
  border: 2px solid rgba(255, 255, 255, 0.7);
  color: var(--color-white);
  background: transparent;
  cursor: pointer;
  transition: var(--transition);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--color-white);
}

.hero-dots {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 10;
}

.hero-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--color-white);
  background: transparent;
  cursor: pointer;
  transition: var(--transition);
}

.hero-dot.active {
  background: var(--color-white);
}

.hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: var(--color-white);
  font-size: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-arrow:hover {
  background: rgba(255, 255, 255, 0.4);
}

.hero-arrow-prev { left: 16px; }
.hero-arrow-next { right: 16px; }

/* --- ボタン --- */
.btn {
  display: inline-block;
  padding: 12px 32px;
  border-radius: 30px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background: var(--color-sub);
  color: var(--color-white);
}

.btn-primary:hover {
  background: var(--color-sub-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(21, 179, 196, 0.35);
}

.btn-secondary {
  background: var(--color-white);
  color: var(--color-main);
  border: 2px solid var(--color-main);
}

.btn-secondary:hover {
  background: var(--color-main);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--color-main);
  border: 2px solid var(--color-main);
}

.btn-outline:hover {
  background: var(--color-main);
  color: var(--color-white);
}

.btn-cta-tel {
  background: var(--color-main);
  color: var(--color-white);
}

.btn-cta-tel:hover {
  background: var(--color-main-dark);
  transform: translateY(-2px);
}

.btn-line {
  background: var(--color-line);
  color: var(--color-white);
}

.btn-line:hover {
  background: var(--color-line-hover);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 16px;
}

.btn-lg small {
  display: block;
  font-size: 12px;
  font-weight: 400;
  margin-top: 2px;
}

/* --- 特徴カードセクション --- */
.features {
  padding: 60px 0;
  background: var(--color-bg);
  margin-top: -30px;
  position: relative;
  z-index: 5;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--color-white);
  border-radius: 12px;
  padding: 28px 24px;
  text-align: center;
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  border-top: 3px solid transparent;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
  border-top-color: var(--color-main);
}

.feature-icon {
  margin-bottom: 12px;
}

.feature-title {
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 700;
  color: var(--color-main);
  margin-bottom: 6px;
}

.feature-text {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* --- セクション共通 --- */
.section-title {
  font-family: var(--font-heading);
  text-align: center;
  font-size: 28px;
  font-weight: 700;
  color: var(--color-main);
  margin-bottom: 10px;
  position: relative;
}

.section-title::after {
  content: "";
  display: block;
  width: 50px;
  height: 3px;
  background: var(--color-sub);
  margin: 12px auto 0;
  border-radius: 2px;
}

.section-subtitle {
  text-align: center;
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 40px;
}

/* --- 症状別セクション --- */
.symptoms {
  padding: 80px 0;
  background: var(--color-white);
}

.symptoms-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.symptom-card {
  background: var(--color-bg);
  border-radius: 12px;
  padding: 28px 24px;
  text-align: center;
  transition: var(--transition);
  border: 1px solid transparent;
}

.symptom-card:hover {
  border-color: var(--color-main);
  box-shadow: 0 4px 16px rgba(13, 149, 189, 0.1);
}

.symptom-icon {
  font-size: 32px;
  margin-bottom: 10px;
}

.symptom-title {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 6px;
}

.symptom-text {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 12px;
}

.symptom-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-main);
  transition: var(--transition);
}

.symptom-link:hover {
  color: var(--color-sub);
}

/* --- 施術コース --- */
.courses {
  padding: 80px 0;
  background: var(--color-bg-alt);
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.course-card {
  background: var(--color-white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
  transition: var(--transition);
}

.course-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.course-image img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.course-body {
  padding: 20px;
}

.course-title {
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.course-desc {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 14px;
}

.course-meta {
  padding-top: 14px;
  border-top: 1px solid var(--color-bg-alt);
}

.course-time {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-main);
}

.courses-more {
  text-align: center;
  margin-top: 36px;
}

/* --- 初めての方へ --- */
.first-visit {
  padding: 80px 0;
  background: var(--color-white);
}

.first-visit-flow {
  max-width: 700px;
  margin: 0 auto 48px;
}

.flow-heading {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-main);
  text-align: center;
  margin-bottom: 28px;
}

.flow-steps {
  counter-reset: none;
}

.flow-steps li {
  display: flex;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--color-bg-alt);
}

.flow-steps li:last-child {
  border-bottom: none;
}

.flow-step-num {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  background: var(--color-main);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 16px;
}

.flow-steps strong {
  display: block;
  font-size: 15px;
  color: var(--color-text);
  margin-bottom: 4px;
}

.flow-steps p {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.7;
}

.first-visit-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 36px;
}

.first-visit-box {
  background: var(--color-bg-alt);
  border-radius: 12px;
  padding: 28px;
}

.first-visit-box h3 {
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 700;
  color: var(--color-main);
  margin-bottom: 14px;
}

.first-visit-box ul {
  list-style: none;
}

.first-visit-box li {
  font-size: 14px;
  padding: 6px 0;
  border-bottom: 1px solid rgba(13, 149, 189, 0.08);
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: baseline;
  gap: 8px;
}

.course-duration {
  font-size: 13px;
  color: var(--color-text-light);
  text-align: left;
  white-space: nowrap;
}

.first-visit-box li:last-child {
  border-bottom: none;
}

.price-highlight {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-main);
  font-size: 16px;
}

.first-visit-note {
  font-size: 12px;
  color: var(--color-text-light);
  margin-top: 12px;
}

.first-visit-cta {
  text-align: center;
}

/* --- 院長紹介 --- */
.about {
  padding: 80px 0;
  background: var(--color-bg-alt);
}

.about-content {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 40px;
  align-items: start;
}

.about-image img {
  border-radius: 12px;
  width: 100%;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.about-name {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.about-credentials {
  font-size: 13px;
  color: var(--color-main);
  font-weight: 600;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(13, 149, 189, 0.15);
}

.about-text p {
  font-size: 14px;
  line-height: 1.9;
  margin-bottom: 14px;
  color: var(--color-text-light);
}

.about-qualifications {
  margin-top: 20px;
  background: var(--color-white);
  border-radius: 8px;
  padding: 20px;
}

.about-qualifications h4 {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-main);
  margin-bottom: 10px;
}

.about-qualifications ul {
  list-style: disc;
  padding-left: 20px;
}

.about-qualifications li {
  font-size: 13px;
  color: var(--color-text-light);
  padding: 3px 0;
}

/* --- お客様の声 --- */
.testimonials {
  padding: 80px 0;
  background: var(--color-white);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: var(--color-bg);
  border-radius: 12px;
  padding: 28px;
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.04);
  border-left: 4px solid var(--color-sub);
}

.testimonial-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.testimonial-avatar img {
  width: 50px;
  height: 50px;
  border-radius: 50%;
}

.testimonial-name {
  display: block;
  font-size: 15px;
  font-weight: 600;
}

.testimonial-detail {
  display: block;
  font-size: 12px;
  color: var(--color-text-light);
}

.testimonial-stars {
  color: #F5A623;
  font-size: 16px;
  margin-bottom: 10px;
}

.testimonial-text {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.8;
}

/* --- お知らせ --- */
.news {
  padding: 80px 0;
  background: var(--color-bg-alt);
}

.news-list {
  max-width: 800px;
  margin: 0 auto;
}

.news-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(13, 149, 189, 0.12);
}

.news-item:first-child {
  border-top: 1px solid rgba(13, 149, 189, 0.12);
}

.news-date {
  font-family: var(--font-heading);
  font-size: 13px;
  color: var(--color-text-light);
  white-space: nowrap;
  min-width: 90px;
}

.news-tag {
  display: inline-block;
  font-size: 11px;
  padding: 2px 12px;
  border-radius: 20px;
  background: var(--color-main);
  color: var(--color-white);
  white-space: nowrap;
  font-weight: 500;
}

.tag-campaign {
  background: var(--color-sub);
}

.news-text {
  font-size: 14px;
  flex: 1;
}

.news-loading,
.news-error {
  text-align: center;
  padding: 40px 0;
  font-size: 14px;
  color: var(--color-text-light);
}

/* --- CTAセクション --- */
.cta {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--color-main), var(--color-main-dark));
}

.cta-inner {
  text-align: center;
  color: var(--color-white);
}

.cta-title {
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 14px;
}

.cta-text {
  font-size: 15px;
  margin-bottom: 30px;
  opacity: 0.9;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.cta .btn-secondary {
  background: var(--color-white);
  color: var(--color-main);
  border-color: var(--color-white);
}

.cta .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  color: var(--color-white);
  border-color: var(--color-white);
}

.cta-note {
  font-size: 13px;
  opacity: 0.8;
}

/* --- 固定CTA（スマホ下部） --- */
.fixed-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  z-index: 999;
  background: var(--color-white);
  box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.12);
  padding: 8px 12px;
  gap: 8px;
  justify-content: center;
}

.fixed-cta-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: 10px 4px;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 700;
  color: var(--color-white);
  text-align: center;
  transition: var(--transition);
}

.fixed-cta-tel { background: var(--color-main); }
.fixed-cta-web { background: var(--color-sub); }
.fixed-cta-line { background: var(--color-line); }

.fixed-cta-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.fixed-cta-btn svg {
  flex-shrink: 0;
}

/* --- フッター --- */
.footer {
  background: var(--color-text);
  color: rgba(255, 255, 255, 0.8);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 2fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}

.footer .logo-main { color: var(--color-white); }
.footer .logo-sub { color: rgba(255, 255, 255, 0.5); }

.footer-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  margin-bottom: 16px;
}

.footer-address {
  font-size: 13px;
  line-height: 1.7;
  margin-bottom: 8px;
}

.footer-tel a {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-sub);
}

.footer-tel a:hover { color: var(--color-white); }

.footer h4 {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 14px;
}

.hours-table {
  width: 100%;
  font-size: 12px;
  border-collapse: collapse;
}

.hours-table th,
.hours-table td {
  padding: 6px 4px;
  text-align: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.hours-table th {
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
}

.hours-note {
  font-size: 11px;
  margin-top: 8px;
  opacity: 0.7;
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-nav a {
  font-size: 13px;
  transition: var(--transition);
}

.footer-nav a:hover { color: var(--color-sub); }

.sns-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sns-link {
  font-size: 13px;
  transition: var(--transition);
}

.sns-link:hover { color: var(--color-sub); }

.footer-map {
  margin-bottom: 30px;
  border-radius: 8px;
  overflow: hidden;
}

.footer-map iframe { display: block; }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  text-align: center;
  font-size: 12px;
  opacity: 0.6;
}

/* --- フェードインアニメーション --- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===================================
   レスポンシブ
   =================================== */

@media (max-width: 900px) {
  .courses-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .symptoms-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .about-content { grid-template-columns: 240px 1fr; gap: 28px; }
  .first-visit-info { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root { --header-height: 60px; }

  .hamburger { display: flex; }

  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 75%;
    max-width: 320px;
    height: 100vh;
    background: var(--color-white);
    z-index: 1005;
    transition: right 0.35s ease;
    padding: 80px 32px 40px;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
    overflow-y: auto;
  }

  .nav.open { right: 0; }

  .nav-list { flex-direction: column; gap: 0; }
  .nav-list li { width: 100%; }

  .nav-list a {
    display: block;
    padding: 14px 0;
    font-size: 16px;
    border-bottom: 1px solid var(--color-bg-alt);
  }

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

  .nav-cta {
    text-align: center;
    margin-top: 16px;
    border-bottom: none !important;
  }

  .nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1002;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }

  .nav-overlay.active { opacity: 1; visibility: visible; }

  .hero { height: 60vh; min-height: 360px; }
  .hero-title { font-size: 26px; }
  .hero-subtitle { font-size: 13px; }
  .hero-kicker { font-size: 11px; }
  .hero-arrow { width: 36px; height: 36px; font-size: 18px; }

  .features { margin-top: 0; padding: 40px 0; }
  .features-grid { grid-template-columns: 1fr; gap: 16px; }

  .feature-card {
    flex-direction: row;
    text-align: left;
    padding: 20px;
    gap: 14px;
    border-top: none;
    border-left: 3px solid transparent;
  }

  .feature-card:hover { border-top-color: transparent; border-left-color: var(--color-main); }

  .section-title { font-size: 22px; }

  .symptoms-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .symptom-card { padding: 20px 16px; }

  .courses { padding: 50px 0; }
  .courses-grid { grid-template-columns: 1fr; gap: 20px; }
  .course-image img { height: 160px; }

  .first-visit { padding: 50px 0; }
  .first-visit-info { grid-template-columns: 1fr; }

  .about { padding: 50px 0; }
  .about-content { grid-template-columns: 1fr; }
  .about-image { max-width: 280px; margin: 0 auto; }

  .testimonials { padding: 50px 0; }
  .testimonials-grid { grid-template-columns: 1fr; gap: 16px; }

  .news { padding: 50px 0; }
  .news-item { flex-wrap: wrap; gap: 8px; padding: 14px 0; }
  .news-date { min-width: auto; }
  .news-text { flex-basis: 100%; }

  .cta { padding: 50px 0; }
  .cta-title { font-size: 20px; }
  .cta-buttons { flex-direction: column; align-items: center; }
  .btn-lg { width: 100%; max-width: 300px; }

  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-map iframe { height: 220px; }

  /* 固定CTA表示 + フッター余白 */
  .fixed-cta { display: flex; }
  .footer { padding-bottom: 72px; }
}

@media (max-width: 400px) {
  .hero-title { font-size: 22px; }
  .btn { padding: 10px 24px; font-size: 14px; }
  .symptoms-grid { grid-template-columns: 1fr; }
}