/* ===== ベースリセット ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Helvetica Neue', sans-serif; background: #FAF8F1; color: #333; line-height: 1.6; }
a { text-decoration: none; }

/* ===== ヘッダー＆ナビ ===== */
header { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; background: transparent; position: sticky; top: 0; z-index: 10; }
.logo { display: flex; align-items: center; gap: 8px; }
.logo-icon { width: 40px; height: auto; }
.logo-text { font-size: 1.5em; color: #C00; font-weight: bold; line-height: 1; }
.nav-toggle { display: none; font-size: 1.8em; background: none; border: none; cursor: pointer; }
nav ul { display: flex; gap: 16px; list-style: none; }
nav ul.open { display: flex; }
nav ul li a { color: #333; padding: 8px; transition: color .2s; }
nav ul li a:hover { color: #C00; }

/* ===== ヒーローセクション ===== */
.hero { position: relative; height: 60vh; overflow: hidden; }
.slider { position: absolute; inset: 0; }
.slide { position: absolute; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity 1s ease-in-out; top: 0; left: 0; }
.slide.active { opacity: 1; }
.hero .overlay { position: absolute; bottom: 10%; left: 50%; transform: translateX(-50%); background: rgba(255,255,255,0.8); padding: 40px 24px; border-radius: 8px; text-align: center; max-width: 90%; }
.hero .overlay h1 { font-size: 2.5em; color: #C00; margin-bottom: 12px; }
.hero .overlay p { color: #333; margin-bottom: 20px; }
.hero .overlay .line-btn { display: inline-block; background: #06C755; color: #fff; padding: 12px 28px; border-radius: 6px; font-weight: bold; transition: background .3s; }
.hero .overlay .line-btn:hover { background: #05a64a; }

/* ===== リンクカード群 ===== */
.link-aggregator { max-width: 400px; margin: 40px auto; text-align: center; }
.link-aggregator .card { display: block; border: 2px solid #C00; border-radius: 8px; padding: 14px 0; margin-bottom: 16px; background: #fff; color: #333; font-weight: bold; transition: transform .2s, box-shadow .2s, background .2s; }
.link-aggregator .card:hover { transform: translateY(-4px); box-shadow: 0 6px 18px rgba(0,0,0,0.12); background: #FFECEC; }
.social-links { margin-top: 24px; }
.social-links .card { border-color: #555; }
.social-links .card:hover { background: #EEE; }

/* ===== 共通セクション ===== */
.section-inner { max-width: 800px; margin: 40px auto; padding: 0 20px; }
.section-inner h2 { color: #C00; font-size: 1.8em; margin-bottom: 20px; }
.price-list { list-style: none; margin: 20px 0; padding: 0; }
.price-list li { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid #ddd; }
.gallery .grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(200px,1fr)); gap: 12px; }
.gallery .grid img { width: 100%; border-radius: 4px; object-fit: cover; }

/* ===== フッター ===== */
footer { text-align: center; padding: 20px 0; color: #666; font-size: 0.9em; background: transparent; }

/* ===== レスポンシブ ===== */
@media (max-width: 768px) {
  .nav-toggle { display: block; }
  nav ul { display: none; flex-direction: column; background: #FAF8F1; position: absolute; top: 100%; right: 0; left: 0; padding: 20px; }
}
@media (max-width: 480px) {
  .hero .overlay { padding: 24px; }
  .hero .overlay h1 { font-size: 2em; }
  .link-aggregator { margin: 24px auto; padding: 0 12px; }
  .link-aggregator .card { padding: 12px 0; font-size: 0.95em; }
  .gallery .grid { grid-template-columns: repeat(2,1fr); }
}