:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f5f4f1;
  --color-text: #1c1c1c;
  --color-muted: #6b6b6b;
  --color-accent: #2f5233;
  --color-border: #e3e1dc;
  --max-width: 1080px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Hiragino Sans", "Yu Gothic", "Helvetica Neue", Arial, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.8;
}

a { color: inherit; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.site-header {
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--color-border);
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-decoration: none;
}

.nav {
  display: flex;
  gap: 28px;
}

.nav a {
  text-decoration: none;
  font-size: 14px;
  color: var(--color-text);
}

.nav a:hover { color: var(--color-accent); }

.hero {
  padding: 120px 0 100px;
  text-align: center;
  background: linear-gradient(180deg, #faf9f7 0%, #ffffff 100%);
}

.hero-eyebrow {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--color-muted);
  margin-bottom: 16px;
}

.hero h1 {
  font-size: clamp(28px, 5vw, 44px);
  line-height: 1.5;
  margin: 0 0 24px;
}

.hero-lead {
  color: var(--color-muted);
  margin-bottom: 32px;
}

.btn {
  display: inline-block;
  padding: 14px 32px;
  background: var(--color-accent);
  color: #fff;
  text-decoration: none;
  border-radius: 4px;
  font-size: 14px;
  letter-spacing: 0.05em;
}

.section {
  padding: 88px 0;
}

.section-alt {
  background: var(--color-bg-alt);
}

.section-title {
  font-size: 24px;
  text-align: center;
  margin: 0 0 40px;
  letter-spacing: 0.05em;
}

.section-lead {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
  color: var(--color-muted);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.service-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 40px;
}

.service-card h3 {
  font-size: 18px;
  margin: 0 0 12px;
}

.service-card p {
  color: var(--color-muted);
  margin: 0 0 16px;
}

.service-card ul {
  margin: 0;
  padding-left: 20px;
  color: var(--color-muted);
  font-size: 14px;
}

.site-footer {
  padding: 32px 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
  color: var(--color-muted);
  font-size: 13px;
}

@media (max-width: 640px) {
  .nav { gap: 16px; }
  .service-grid { grid-template-columns: 1fr; }
  .hero { padding: 80px 0 64px; }
}