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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Hiragino Sans', 'Noto Sans JP', sans-serif;
  background: #f7f6f3;
  color: #1a1a1a;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }

.inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  border-bottom: 1px solid #e5e3dc;
  background: #fff;
  padding: 16px 0;
}
.site-header .inner {
  display: flex;
  align-items: center;
}
.site-logo {
  height: 32px;
  width: auto;
  display: block;
}

/* Hero */
.hero {
  background: #fff;
  padding: 72px 0 64px;
  text-align: center;
  border-bottom: 1px solid #e5e3dc;
}
.hero-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: #888;
  background: #f0efe9;
  padding: 4px 14px;
  border-radius: 100px;
  margin-bottom: 24px;
}
.hero h1 {
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 15px;
  color: #666;
  line-height: 1.8;
}

/* Cards */
.cards {
  padding: 64px 0;
}
.cards .inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: #fff;
  border: 1px solid #e5e3dc;
  border-radius: 16px;
  padding: 24px;
  transition: box-shadow 0.15s, transform 0.15s;
}
.card:hover {
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
  transform: translateY(-2px);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.card-icon--blue  { background: #dceeff; color: #1a69c0; }
.card-icon--green { background: #ddf0d5; color: #2d6a1f; }
.card-icon--pink  { background: #fce4ee; color: #a0305a; }

.card-body { flex: 1; }
.card-num {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: #aaa;
  margin-bottom: 6px;
}
.card-body h2 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}
.card-desc {
  font-size: 13px;
  color: #555;
  line-height: 1.75;
  margin-bottom: 14px;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
}
.tag {
  font-size: 11px;
  font-weight: 500;
  color: #555;
  background: #f0efe9;
  padding: 3px 10px;
  border-radius: 100px;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid #f0efe9;
}
.card-link {
  font-size: 13px;
  color: #888;
}
.card-arrow {
  color: #aaa;
  transition: transform 0.15s, color 0.15s;
}
.card:hover .card-arrow {
  transform: translateX(3px);
  color: #555;
}

/* Features */
.features {
  background: #fff;
  border-top: 1px solid #e5e3dc;
  padding: 64px 0;
}
.section-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 36px;
  text-align: center;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 28px;
}
.feature {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.feature svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: #888;
}
.feature-title {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 4px;
}
.feature-desc {
  font-size: 12px;
  color: #777;
  line-height: 1.7;
}

/* Footer */
.site-footer {
  border-top: 1px solid #e5e3dc;
  padding: 28px 0;
  text-align: center;
}
.site-footer p {
  font-size: 12px;
  color: #aaa;
}