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

body {
  font-family: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
  font-size: clamp(15px, 1.6vw, 16px);
  line-height: 1.8;
  color: #333;
  background: #fff;
}

a { color: #1a5fa8; text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 40px;
}

/* ========== HEADER ========== */
.site-header {
  background: #0d2b4e;
  padding: 0;
}

.site-header .container {
  height: 64px;
  display: flex;
  align-items: center;
}

.site-title {
  color: #fff;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

/* ========== HERO ========== */
.hero {
  background: linear-gradient(135deg, #0d2b4e 0%, #1a5fa8 100%);
  color: #fff;
  padding: 88px 0 80px;
}

.hero-inner h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}

.hero-inner p {
  font-size: clamp(0.95rem, 1.8vw, 1.05rem);
  line-height: 2;
  color: rgba(255,255,255,.85);
  max-width: 560px;
}

/* ========== SECTION ========== */
.section { padding: 72px 0; }

.section-title {
  font-size: clamp(1.3rem, 2.5vw, 1.6rem);
  font-weight: 700;
  color: #0d2b4e;
  margin-bottom: 40px;
  padding-bottom: 12px;
  border-bottom: 3px solid #1a5fa8;
}

/* ========== SERVICES ========== */
.services { background: #f5f8fc; }

.service-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.service-card {
  background: #fff;
  border-radius: 8px;
  padding: 36px 32px;
  box-shadow: 0 2px 12px rgba(0,0,0,.07);
  border-top: 4px solid #1a5fa8;
}

.service-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.service-card h3 {
  font-size: 1.1rem;
  color: #0d2b4e;
  margin-bottom: 12px;
  font-weight: 700;
}

.service-card p {
  font-size: 0.95rem;
  color: #555;
  line-height: 1.9;
}

/* ========== COMPANY OVERVIEW ========== */
.about-section { background: #fff; }

.about-table-wrap {
  max-width: 640px;
}

.about-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.about-table tr {
  border-bottom: 1px solid #e0e8f0;
}

.about-table tr:first-child {
  border-top: 1px solid #e0e8f0;
}

.about-table th {
  width: 160px;
  padding: 18px 16px;
  text-align: left;
  color: #0d2b4e;
  font-weight: 700;
  vertical-align: top;
  white-space: nowrap;
}

.about-table td {
  padding: 18px 16px;
  color: #444;
  line-height: 1.8;
}

/* ========== FOOTER ========== */
.site-footer {
  background: #0d2b4e;
  color: rgba(255,255,255,.6);
  text-align: center;
  padding: 24px 20px;
  font-size: 0.85rem;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
  .container { padding: 0 24px; }
  .hero { padding: 64px 0 56px; }
  .section { padding: 52px 0; }
  .service-grid { grid-template-columns: 1fr; gap: 16px; }
  .service-card { padding: 28px 24px; }
  .about-table th { width: 120px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero { padding: 48px 0 40px; }
  .hero-inner h1 { font-size: 1.5rem; }
  .section { padding: 40px 0; }
  .section-title { font-size: 1.2rem; margin-bottom: 24px; }
  .service-card { padding: 24px 20px; }

  .about-table th,
  .about-table td {
    display: block;
    padding: 10px 0;
  }
  .about-table th {
    width: 100%;
    padding-bottom: 4px;
    border-bottom: none;
    font-size: 0.85rem;
    color: #1a5fa8;
  }
  .about-table td { padding-top: 0; padding-bottom: 14px; }
}