* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Hiragino Mincho ProN', 'Georgia', serif;
  color: #2c2c2c;
  background: #faf9f7;
}

/* ヘッダー */
header {
  padding: 20px 40px;
  border-bottom: 1px solid #e0dcd6;
  background: #faf9f7;
}

.header-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 22px;
  letter-spacing: 4px;
  font-weight: bold;
}

nav a {
  margin-left: 28px;
  text-decoration: none;
  color: #2c2c2c;
  font-size: 14px;
  letter-spacing: 1px;
}

nav a:hover {
  color: #8b6f47;
}

/* ヒーロー */
.hero {
  padding: 100px 40px;
  background: #f0ece6;
  text-align: center;
}

.hero-inner {
  max-width: 700px;
  margin: 0 auto;
}

.hero-sub {
  font-size: 13px;
  letter-spacing: 3px;
  color: #8b6f47;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: 42px;
  line-height: 1.6;
  margin-bottom: 24px;
  font-weight: normal;
}

.hero-desc {
  font-size: 16px;
  line-height: 2;
  color: #555;
  margin-bottom: 40px;
}

.btn {
  display: inline-block;
  padding: 14px 40px;
  background: #2c2c2c;
  color: #faf9f7;
  text-decoration: none;
  font-size: 14px;
  letter-spacing: 2px;
}

.btn:hover {
  background: #8b6f47;
}

/* シリーズ紹介 */
.series {
  padding: 80px 40px;
}

.series-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  gap: 40px;
}

.series-card {
  flex: 1;
  padding: 48px 40px;
  border: 1px solid #e0dcd6;
  background: #fff;
}

.series-card h2 {
  font-size: 22px;
  font-weight: normal;
  margin-bottom: 20px;
  color: #8b6f47;
}

.series-card p {
  font-size: 15px;
  line-height: 2;
  color: #555;
  margin-bottom: 28px;
}

.series-card a {
  color: #2c2c2c;
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px solid #2c2c2c;
  padding-bottom: 2px;
}

/* フッター */
footer {
  padding: 40px;
  text-align: center;
  font-size: 13px;
  color: #999;
  border-top: 1px solid #e0dcd6;
}