/* ===== CSS Variables ===== */
:root {
  --primary: #1a3a5c;
  --primary-light: #2a5a8c;
  --primary-dark: #0e2240;
  --accent: #c0392b;
  --accent-light: #e74c3c;
  --secondary: #f0e6d3;
  --secondary-dark: #d4c4a8;
  --bg: #fafaf8;
  --bg-alt: #f0ede8;
  --text: #2c2c2c;
  --text-light: #666;
  --text-lighter: #999;
  --white: #ffffff;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.3s ease;
  --max-width: 1200px;
  --header-h: 72px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Hiragino Sans', 'Noto Sans JP', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary-light); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }
ul, ol { list-style: none; }

/* ===== Utility ===== */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
  text-align: center;
}
.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-light);
  text-align: center;
  margin-bottom: 48px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Header / Nav ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  transition: box-shadow var(--transition);
  height: var(--header-h);
}
.header.scrolled {
  box-shadow: 0 2px 20px rgba(0,0,0,0.1);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary);
}
.nav-brand i { width: 28px; height: 28px; color: var(--accent); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition);
}
.nav-links a:hover::after { width: 100%; }
#langBtn {
  background: var(--primary);
  color: var(--white);
  border: none;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition);
}
#langBtn:hover { background: var(--primary-light); }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  transition: var(--transition);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  height: 85vh;
  min-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-top: var(--header-h);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.55);
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--white);
  padding: 0 24px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(8px);
  padding: 8px 18px;
  border-radius: 30px;
  font-size: 0.85rem;
  margin-bottom: 20px;
  border: 1px solid rgba(255,255,255,0.2);
}
.hero-badge i { width: 16px; height: 16px; }
.hero h1 {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.hero p {
  font-size: 1.2rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto 24px;
}
.hero-location {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.95rem;
  opacity: 0.85;
}
.hero-location i { width: 18px; height: 18px; }
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 32px;
}
.hero-stat { text-align: center; }
.hero-stat-value {
  font-size: 1.8rem;
  font-weight: 700;
}
.hero-stat-label {
  font-size: 0.8rem;
  opacity: 0.75;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ===== Intro ===== */
.intro { background: var(--white); }
.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.intro-text p {
  font-size: 1.05rem;
  color: var(--text-light);
  margin-bottom: 24px;
}
.stat-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.stat-card {
  background: var(--bg-alt);
  padding: 20px;
  border-radius: var(--radius-sm);
  text-align: center;
}
.stat-card i { width: 28px; height: 28px; color: var(--accent); margin-bottom: 8px; }
.stat-card-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}
.stat-card-label {
  font-size: 0.8rem;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ===== Articles ===== */
.articles { background: var(--bg); }
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.article-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.article-card-img {
  height: 200px;
  overflow: hidden;
}
.article-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.article-card:hover .article-card-img img {
  transform: scale(1.08);
}
.article-card-body {
  padding: 24px;
}
.article-card-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}
.article-card-body h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
  line-height: 1.4;
}
.article-card-excerpt {
  font-size: 0.92rem;
  color: var(--text-light);
  margin-bottom: 16px;
  line-height: 1.6;
}
.article-card-full {
  display: none;
  font-size: 0.92rem;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 16px;
}
.article-card-full p { margin-bottom: 12px; }
.article-card.expanded .article-card-full { display: block; }
.article-card.expanded .article-card-excerpt { display: none; }
.article-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary-light);
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}
.article-toggle i { width: 16px; height: 16px; transition: transform var(--transition); }
.article-card.expanded .article-toggle i { transform: rotate(180deg); }

/* ===== Tips ===== */
.tips { background: var(--white); }
.tips-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.tip-card {
  padding: 28px;
  border-radius: var(--radius);
  background: var(--bg-alt);
  transition: transform var(--transition);
}
.tip-card:hover { transform: translateY(-2px); }
.tip-card-icon {
  width: 48px;
  height: 48px;
  background: var(--primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.tip-card-icon i { width: 24px; height: 24px; color: var(--white); }
.tip-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}
.tip-card p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* ===== Seasonal ===== */
.seasonal { background: var(--bg); }
.seasonal-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.season-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform var(--transition);
  border-top: 4px solid transparent;
}
.season-card:hover { transform: translateY(-4px); }
.season-card.spring { border-top-color: #f8b4c8; }
.season-card.summer { border-top-color: #4ecdc4; }
.season-card.autumn { border-top-color: #e67e22; }
.season-card.winter { border-top-color: #74b9ff; }
.season-card i {
  width: 40px;
  height: 40px;
  margin-bottom: 16px;
}
.season-card.spring i { color: #f8b4c8; }
.season-card.summer i { color: #4ecdc4; }
.season-card.autumn i { color: #e67e22; }
.season-card.winter i { color: #74b9ff; }
.season-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}
.season-card-months {
  font-size: 0.8rem;
  color: var(--text-lighter);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}
.season-card p {
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* ===== Newsletter / Lead Form ===== */
.newsletter {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--white);
}
.newsletter .section-title { color: var(--white); }
.newsletter .section-subtitle { color: rgba(255,255,255,0.8); }
.newsletter-form {
  max-width: 560px;
  margin: 0 auto;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  border-radius: var(--radius);
  padding: 36px;
  border: 1px solid rgba(255,255,255,0.15);
}
.form-group {
  margin-bottom: 18px;
}
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: rgba(255,255,255,0.9);
}
.form-group input,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.1);
  color: var(--white);
  font-size: 0.95rem;
  transition: border-color var(--transition);
}
.form-group input::placeholder { color: rgba(255,255,255,0.5); }
.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: rgba(255,255,255,0.5);
}
.form-group select option { color: var(--text); background: var(--white); }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-consent {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 20px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.8);
}
.form-consent input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  flex-shrink: 0;
  accent-color: var(--accent);
}
.form-submit {
  width: 100%;
  padding: 14px;
  background: var(--accent);
  color: var(--white);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.form-submit:hover { background: var(--accent-light); }
.form-submit i { width: 18px; height: 18px; }
.form-success {
  display: none;
  text-align: center;
  padding: 24px;
}
.form-success i { width: 48px; height: 48px; color: #2ecc71; margin-bottom: 12px; }
.form-success h3 { font-size: 1.3rem; margin-bottom: 8px; }
.form-success p { font-size: 0.95rem; opacity: 0.85; }

/* ===== FAQ ===== */
.faq { background: var(--white); }
.faq-list {
  max-width: 760px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--bg-alt);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 20px 0;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--primary);
}
.faq-question i {
  width: 20px;
  height: 20px;
  color: var(--text-light);
  transition: transform var(--transition);
  flex-shrink: 0;
}
.faq-item.active .faq-question i { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.faq-answer-inner {
  padding: 0 0 20px;
  font-size: 0.95rem;
  color: var(--text-light);
  line-height: 1.7;
}

/* ===== Footer ===== */
.footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.7);
  padding: 60px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
}
.footer-brand i { width: 24px; height: 24px; color: var(--accent); }
.footer-desc {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 16px;
}
.footer h4 {
  color: var(--white);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.footer-links a {
  display: block;
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  padding: 4px 0;
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--white); }
.footer-disclaimer {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  text-align: center;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
  line-height: 1.6;
}

/* ===== Supporting Pages ===== */
.page-header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  padding: 120px 0 60px;
  text-align: center;
  color: var(--white);
}
.page-header h1 {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 8px;
}
.page-header p {
  font-size: 1.05rem;
  opacity: 0.8;
}
.page-content {
  padding: 60px 0;
  background: var(--white);
}
.page-content .container {
  max-width: 800px;
}
.page-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  margin: 32px 0 12px;
}
.page-content h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--primary);
  margin: 24px 0 8px;
}
.page-content p {
  font-size: 0.95rem;
  color: var(--text-light);
  margin-bottom: 16px;
  line-height: 1.7;
}
.page-content ul {
  margin: 0 0 16px 24px;
  list-style: disc;
}
.page-content ul li {
  font-size: 0.95rem;
  color: var(--text-light);
  margin-bottom: 6px;
  line-height: 1.6;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .articles-grid { grid-template-columns: repeat(2, 1fr); }
  .seasonal-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-links { 
    display: none;
    position: fixed;
    top: var(--header-h);
    left: 0;
    width: 100%;
    background: var(--white);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    box-shadow: var(--shadow-lg);
  }
  .nav-links.open { display: flex; }
  .hamburger { display: flex; }
  .hero h1 { font-size: 2.2rem; }
  .hero-stats { gap: 20px; }
  .hero-stat-value { font-size: 1.4rem; }
  .intro-grid { grid-template-columns: 1fr; }
  .articles-grid { grid-template-columns: 1fr; }
  .tips-grid { grid-template-columns: 1fr; }
  .seasonal-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .section { padding: 56px 0; }
  .section-title { font-size: 1.6rem; }
}
@media (max-width: 480px) {
  .hero { height: 70vh; }
  .hero h1 { font-size: 1.8rem; }
  .hero p { font-size: 1rem; }
  .hero-stats { flex-direction: column; gap: 12px; }
  .stat-cards { grid-template-columns: 1fr; }
  .newsletter-form { padding: 24px; }
}