:root {
  --brand: #1d4ed8;
  --brand-dark: #1e3a8a;
  --ink: #1f2937;
  --ink-light: #4b5563;
  --bg-soft: #f5f7fb;
  --border: #e2e8f0;
}

* { box-sizing: border-box; }

body.landing {
  margin: 0;
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", system-ui, sans-serif;
  color: var(--ink);
  line-height: 1.7;
}

.landing-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  max-width: 1080px;
  margin: 0 auto;
}

.landing-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.landing-brand img { width: 40px; height: 40px; display: block; }

.landing-brand-text h1 {
  font-size: 1.25rem;
  margin: 0;
  letter-spacing: 0.02em;
}

.landing-brand-text p {
  margin: 0;
  font-size: 0.8rem;
  color: var(--ink-light);
}

.landing-header .cta-link {
  color: var(--brand);
  text-decoration: none;
  font-weight: 600;
  border: 1px solid var(--brand);
  border-radius: 6px;
  padding: 8px 16px;
  white-space: nowrap;
}

.hero {
  background: linear-gradient(180deg, var(--bg-soft), #ffffff);
  text-align: center;
  padding: 56px 24px 64px;
}

.hero h2 {
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  margin: 0 0 12px;
  color: var(--brand-dark);
}

.hero p {
  max-width: 640px;
  margin: 0 auto 28px;
  color: var(--ink-light);
  font-size: 1.05rem;
}

.hero .cta-button {
  display: inline-block;
  background: var(--brand);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: 8px;
}

.landing main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

.landing section {
  padding: 56px 0;
  border-top: 1px solid var(--border);
}

.landing section h3 {
  font-size: 1.6rem;
  text-align: center;
  margin: 0 0 40px;
  color: var(--brand-dark);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-soft);
  border-radius: 12px;
  padding: 28px 24px;
}

.feature-card h4 {
  margin: 0 0 10px;
  color: var(--brand-dark);
  font-size: 1.1rem;
}

.feature-card p {
  margin: 0 0 16px;
  color: var(--ink-light);
  font-size: 0.95rem;
  white-space: pre-line;
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(29, 78, 216, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--brand-dark);
}

.feature-icon svg {
  width: 28px;
  height: 28px;
}

.support-box, .pricing-box {
  background: var(--bg-soft);
  border-radius: 12px;
  padding: 32px;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.support-box p, .pricing-box p { margin: 0; color: var(--ink-light); }

.contact-box {
  background: var(--brand);
  color: #fff;
  border-radius: 12px;
  padding: 36px;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.contact-box .operator {
  font-weight: 600;
  margin: 0 0 6px;
}

.contact-box a {
  color: #fff;
  font-size: 1.15rem;
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid rgba(255,255,255,0.6);
}

.landing-footer {
  text-align: center;
  padding: 28px 24px 40px;
  color: #9ca3af;
  font-size: 0.85rem;
}

@media (max-width: 720px) {
  .feature-grid { grid-template-columns: 1fr; }
  .landing-header { flex-direction: column; gap: 12px; text-align: center; }
}