/* ========================= */
/* ベース設定 */
/* ========================= */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Hiragino Sans", "Yu Gothic", sans-serif;
  color: #333;
  background: #F7FBFF;
}

:root {
  --main: #AEE1F9;
  --main-deep: #7BC4E7;
  --accent: #FFF7C2;
  --text: #333;
  --bg: #fff;
}

/* ========================= */
/* 中央揃えレイアウト */
/* ========================= */
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ========================= */
/* ヘッダー */
/* ========================= */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 14px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(8px);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  z-index: 1000;
  opacity: 0;
  animation: fadeIn 1s ease forwards;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.logo-link:hover {
  opacity: 0.85;
}

.logo {
  width: 40px;
  height: 40px;
  border-radius: 50%;
}

.site-name {
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.06em;
}

.nav .menu {
  list-style: none;
  display: flex;
  gap: 24px;
  margin: 0;
  padding: 0;
}

.nav .menu li a {
  text-decoration: none;
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  padding: 4px 0;
  position: relative;
}

.nav .menu li a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--main-deep);
  transition: width 0.2s ease;
}

.nav .menu li a:hover::after {
  width: 100%;
}

/* ========================= */
/* 中央演出：Ibasho Chat */
/* ========================= */
.center-intro {
  margin-top: 90px;
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

.line-from-logo {
  width: 0;
  height: 2px;
  background: var(--main-deep);
  border-radius: 999px;
  animation: lineGrow 0.9s ease forwards 0.6s;
}

.ibasho-btn {
  margin-top: 16px;
  padding: 10px 28px;
  border-radius: 999px;
  background: var(--main-deep);
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  box-shadow: 0 4px 10px rgba(123,196,231,0.4);
  opacity: 0;
  transform: translateY(10px);
  animation: fadeInUp 0.7s ease forwards 1.4s;
}

/* ========================= */
/* ヒーロー（A-2：水色グラデ） */
/* ========================= */
.hero {
  padding: 120px 20px 140px;
  text-align: center;
  border-radius: 24px;
  margin: 0 auto;
  max-width: 900px;
  background: linear-gradient(135deg, #DFF4FF 0%, #BEE7FF 100%);
  box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}

.hero h1 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 16px;
  color: #2A4A5A;
}

.hero p {
  font-size: 16px;
  margin-bottom: 28px;
  color: #3A5A6A;
}

.main-btn {
  display: inline-block;
  padding: 14px 40px;
  border-radius: 999px;
  background: var(--main-deep);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  font-size: 16px;
  box-shadow: 0 6px 16px rgba(0,0,0,0.1);
}

/* ========================= */
/* セクション共通 */
/* ========================= */
section {
  padding: 80px 0;
  text-align: center;
}

h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 24px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
}

.icon {
  width: 24px;
  height: 24px;
}

/* ========================= */
/* トピックカード */
/* ========================= */
.topic-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.card {
  background: var(--bg);
  padding: 18px;
  border-radius: 16px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  font-weight: 600;
}

/* ========================= */
/* 特徴カード */
/* ========================= */
.feature-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.feature {
  background: var(--bg);
  padding: 20px;
  border-radius: 16px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  font-weight: 600;
}

/* ========================= */
/* FAQ */
/* ========================= */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg);
  border-radius: 18px;
  padding: 18px 20px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.faq-item h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.faq-item p {
  font-size: 14px;
  line-height: 1.6;
}

/* ========================= */
/* CTA */
/* ========================= */
.cta {
  text-align: center;
  padding: 60px 20px;
}

.main-btn.big {
  padding: 16px 48px;
  font-size: 18px;
}

/* ========================= */
/* フッター */
/* ========================= */
.footer {
  text-align: center;
  padding: 30px 20px;
  font-size: 13px;
  color: #666;
  background: #F0F8FF;
  margin-top: 40px;
  border-top: 1px solid #DCEAF5;
}

/* ========================= */
/* アニメーション */
/* ========================= */
@keyframes fadeIn {
  to { opacity: 1; }
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes lineGrow {
  to { width: 220px; }
}

/* スクロールでふわっと出る */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* ========================= */
/* スマホ対応 */
/* ========================= */
@media (max-width: 768px) {
  .hero {
    padding: 80px 20px 100px;
  }

  .hero h1 {
    font-size: 26px;
  }

  .topic-cards {
    grid-template-columns: 1fr 1fr;
  }

  .feature-cards {
    grid-template-columns: 1fr;
  }
}
/* ========================= */
/* ハurger {
  display: column;
  gap:    </ul>
  </nav>---

# ② CSS（スマホ用ヘッダーの追加）

あなたの CSSンバーガー（スマホ） */
/* ========================= */
.hamb: none;
  flex-direction 5px;
  cursor: pointer;
}

.hamburger span {
  width: 26px;
  height: 3px;
;
  border-radius.mobile-nav {
  display: absolute;
  top: 70px;
  right: 20px;
  background: 0 4px 12px rgba(0,0,0,0.1);
  border-radius: 12px;
 : column;
  gap:  background: #333: 3px;
}

/* スマホメニュー（初期は非表示） */
: none;
  position: #fff;
  box-shadow padding: 16px;
}

.mobile-nav .menu {
  flex-direction 12px;
}

/* =================マホ対応 */
/* ========================= */
@media;
  }

  /* ハンバーガーを表示 */
  .hamburger {
    display: flex;
  }
}