:root {
  --primary: #1f3a5f;
  --accent: #f28c28;
  --bg: #f7f9fc;
  --text: #1f2937;
  --muted: #6b7280;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  color: var(--text);
  background: #fff;
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
.container { width: min(1080px, 92%); margin: 0 auto; }
header {
  background: #fff;
  border-bottom: 1px solid #e5e7eb;
  position: sticky;
  top: 0;
  z-index: 10;
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
}
.logo { font-weight: 700; color: var(--primary); }
.menu { display: flex; gap: 20px; font-size: 14px; }
.menu a:hover { color: var(--accent); }
.hero {
  background: linear-gradient(120deg, #1f3a5f 0%, #264a77 60%, #2f5e96 100%);
  color: #fff;
  padding: 64px 0;
}
.hero h1 { font-size: clamp(28px, 4vw, 44px); line-height: 1.2; margin: 0 0 12px; }
.hero p { opacity: 0.95; margin: 0 0 20px; }
.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 12px 18px;
  border-radius: 8px;
  font-weight: 600;
}
.section { padding: 52px 0; }
.section.alt { background: var(--bg); }
h2 { font-size: clamp(22px, 3vw, 32px); margin: 0 0 18px; color: var(--primary); }
.grid {
  display: grid;
  gap: 16px;
}
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.card {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 18px;
}
.kv { display: grid; grid-template-columns: 170px 1fr; border-bottom: 1px solid #eef2f7; padding: 10px 0; }
.kv:last-child { border-bottom: 0; }
form {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 18px;
}
label { display: block; font-weight: 600; margin: 10px 0 6px; }
input, textarea, select {
  width: 100%;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  padding: 10px;
  font: inherit;
}
textarea { min-height: 120px; resize: vertical; }
footer {
  border-top: 1px solid #e5e7eb;
  color: var(--muted);
  font-size: 14px;
  padding: 24px 0;
}
.notice { font-size: 13px; color: var(--muted); }
@media (max-width: 800px) {
  .menu { gap: 12px; font-size: 13px; }
  .grid-3 { grid-template-columns: 1fr; }
  .kv { grid-template-columns: 1fr; gap: 4px; }
}