/* 業種別LP 共通スタイル */
* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --blue: #2563EB; --blue-dark: #1D4ED8; --blue-light: #DBEAFE; --blue-50: #EFF6FF;
  --gray-900: #0B1020; --gray-700: #374151; --gray-500: #6B7280;
  --gray-200: #E5E7EB; --gray-100: #F3F4F6; --gray-50: #F9FAFB;
  --green: #10B981;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Helvetica Neue", sans-serif;
  color: var(--gray-900); background: white; line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
.container { max-width: 760px; margin: 0 auto; padding: 0 24px; }
nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--gray-100);
  padding: 14px 24px;
}
.nav-inner { max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 16px; text-decoration: none; color: inherit; }
.brand img { width: 28px; height: 28px; border-radius: 7px; }
.btn-primary {
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  color: white; border: none; border-radius: 10px;
  padding: 10px 18px; font-size: 14px; font-weight: 600;
  text-decoration: none; display: inline-block;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
  transition: transform 0.15s, box-shadow 0.15s;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(37, 99, 235, 0.4); }

.hero {
  padding: 64px 24px 48px;
  text-align: center;
  background: radial-gradient(ellipse at top, var(--blue-50), white);
}
.eyebrow {
  display: inline-block;
  background: var(--blue-light); color: var(--blue-dark);
  padding: 5px 14px; border-radius: 99px;
  font-size: 12px; font-weight: 700; margin-bottom: 16px;
}
h1 {
  font-size: clamp(28px, 5vw, 40px);
  font-weight: 800; letter-spacing: -0.03em; line-height: 1.2;
  margin-bottom: 18px;
}
h1 .accent { color: var(--blue-dark); }
.hero-sub { font-size: 17px; color: var(--gray-700); max-width: 560px; margin: 0 auto 28px; }
.hero-cta { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

.section { padding: 56px 24px; }
.section h2 { font-size: 26px; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 20px; }
.section p, .section li { color: var(--gray-700); font-size: 15px; }

.pain-list, .feature-list {
  list-style: none; display: flex; flex-direction: column; gap: 12px;
}
.pain-list li, .feature-list li {
  background: var(--gray-50); border: 1px solid var(--gray-200);
  border-radius: 10px; padding: 14px 18px;
}
.pain-list li::before { content: "❌ "; color: #DC2626; font-weight: 700; }
.feature-list li::before { content: "✓ "; color: var(--green); font-weight: 700; }

.cta-box {
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  color: white; border-radius: 16px; padding: 40px 28px; text-align: center;
  margin: 40px 0;
}
.cta-box h2 { color: white; margin-bottom: 12px; }
.cta-box p { color: rgba(255, 255, 255, 0.9); margin-bottom: 20px; font-size: 15px; }
.cta-box .btn-primary {
  background: white; color: var(--blue-dark);
  font-size: 15px; padding: 12px 24px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}
.cta-box .btn-primary:hover { box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25); }

details {
  background: white; border: 1px solid var(--gray-200);
  border-radius: 10px; padding: 14px 18px; margin-bottom: 8px;
}
details summary {
  cursor: pointer; font-weight: 600; font-size: 15px; list-style: none;
}
details summary::-webkit-details-marker { display: none; }
details summary::before { content: "▶ "; color: var(--blue); margin-right: 4px; transition: transform 0.2s; display: inline-block; }
details[open] summary::before { transform: rotate(90deg); }
details p { margin-top: 10px; color: var(--gray-700); font-size: 14px; }

footer {
  border-top: 1px solid var(--gray-100); padding: 32px 24px;
  text-align: center; color: var(--gray-500); font-size: 13px;
}
footer a { color: var(--blue); text-decoration: none; }
footer a:hover { text-decoration: underline; }