@charset "UTF-8";
/* CSS Document */
.ir-simple-title {
	padding-bottom: 0.5625rem;
	padding-top: 8.3125rem;
	position: relative;
	text-align: center;
}

.ir-simple-title h1 {
	color: #f62837;
	font-size: 2.7rem;
	font-weight: 700;
}
@media screen and (max-width: 769px) {
.ir-simple-title {
	padding-bottom: 0.375rem;
	padding-top: 3.75rem;
}

.ir-simple-title h1 {
	font-size: 1.5rem;
}}

    :root {
      --bg: #ffffff;
      --surface: #ffffff;
      --text: #111111;
      --border: #e5e5e5;
      --accent: #E53935; /* 赤基調 */
      --shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
      --shadow-hover: 0 6px 18px rgba(0, 0, 0, 0.08);
    }

    .ir-index {
      max-width: 1200px;
      margin: 0 auto;
      padding: clamp(24px, 5vw, 60px);
      background: var(--bg);
    }

    .ir-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: clamp(16px, 3vw, 32px);
    }

    .ir-card {
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 14px;
      padding: clamp(24px, 2.5vw, 36px);
      text-decoration: none;
      color: var(--text);
      font-weight: 600;
      font-size: clamp(16px, 1.8vw, 18px);
      letter-spacing: 0.02em;
      box-shadow: var(--shadow);
      transition: all 0.25s ease;
    }

    .ir-card:hover {
      transform: translateY(-3px);
      border-color: var(--accent);
      box-shadow: var(--shadow-hover);
      color: var(--accent);
    }

    @media (min-width: 960px) {
      .ir-grid {
        grid-template-columns: repeat(3, 1fr);
      }
    }