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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  margin: 0;
  padding: 0;
  color: #1a4d7a;
  line-height: 1.8;
  background-color: #0a0f1a;
  position: relative;
  overflow-x: hidden;
}

/* パララックス背景 - 背景画像を使用 */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('background.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  z-index: -2;
  animation: parallax-bg 25s ease-in-out infinite;
}

@keyframes parallax-bg {
  0%, 100% {
    transform: translateY(0) scale(1);
  }
  50% {
    transform: translateY(-40px) scale(1.03);
  }
}

/* 追加のパララックスレイヤー - 微細なオーバーレイ */
body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    linear-gradient(180deg, rgba(0, 0, 0, 0.1) 0%, transparent 30%, transparent 70%, rgba(0, 0, 0, 0.1) 100%);
  background-size: 100% 100%;
  background-attachment: fixed;
  z-index: -1;
  animation: wave-parallax 20s ease-in-out infinite;
  pointer-events: none;
}

@keyframes wave-parallax {
  0%, 100% {
    transform: translateY(0);
    opacity: 0.7;
  }
  50% {
    transform: translateY(-30px);
    opacity: 0.9;
  }
}

/* ナビゲーション */
nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 10px rgba(0, 123, 255, 0.1);
  z-index: 1000;
  padding: 15px 0;
}

nav .nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 5%;
}

nav .logo-small {
  height: 40px;
  width: auto;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
}

nav a {
  color: #0066cc;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

nav a:hover {
  color: #004499;
}

header {
  padding: 120px 10% 80px;
  background: transparent;
  color: #ffffff;
  position: relative;
  margin-top: 70px;
}

.logo-container {
  text-align: center;
  margin-bottom: 40px;
  background: transparent;
}

.logo {
  max-width: 500px;
  width: 100%;
  height: auto;
  filter: drop-shadow(0 8px 30px rgba(0, 0, 0, 0.6)) drop-shadow(0 0 20px rgba(0, 150, 255, 0.4));
}

header .catch {
  margin-top: 30px;
  font-size: 1.8rem;
  font-weight: bold;
  color: #ffffff;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.8), 0 0 20px rgba(0, 150, 255, 0.5);
}
header .subcatch {
  margin-top: 15px;
  font-size: 1.1rem;
  color: #ffffff;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.6);
  opacity: 0.95;
}

section {
  padding: 70px 10%;
  background: rgba(255, 255, 255, 0.95);
  margin: 20px 0;
  border-radius: 12px;
  box-shadow: 0 4px 25px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 150, 255, 0.2);
  position: relative;
  max-width: 1000px;
  margin-left: auto;
  margin-right: auto;
}
section h3 {
  font-size: 1.8rem;
  margin-bottom: 20px;
  border-left: 6px solid #0066cc;
  padding-left: 14px;
  color: #0066cc;
}
.info-table {
  max-width: 800px;
}
.info-table p {
  margin: 8px 0;
  font-size: 1.05rem;
}
.message {
  max-width: 900px;
  font-size: 1.05rem;
}
.message strong {
  font-weight: bold;
}
.business ul {
  max-width: 900px;
  padding-left: 20px;
}
.business ul li {
  margin: 15px 0;
  font-size: 1.05rem;
}

.cta-buttons {
  display: flex;
  gap: 20px;
  margin-top: 40px;
  flex-wrap: wrap;
  justify-content: center;
}

.cta-button {
  display: inline-block;
  padding: 15px 30px;
  background: linear-gradient(135deg, #0066cc, #004499);
  color: white;
  text-decoration: none;
  border-radius: 8px;
  font-weight: bold;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 15px rgba(0, 102, 204, 0.3);
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 102, 204, 0.4);
}

footer {
  background-color: rgba(255, 255, 255, 0.95);
  padding: 40px 10%;
  font-size: 0.9rem;
  backdrop-filter: blur(10px);
  border-top: 2px solid rgba(0, 123, 255, 0.2);
  color: #1a4d7a;
  text-align: center;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
  header {
    padding: 100px 5% 60px;
  }
  section {
    padding: 50px 5%;
    margin: 10px 5%;
  }
  .logo {
    max-width: 300px;
  }
  header .catch {
    font-size: 1.4rem;
  }
  nav ul {
    gap: 15px;
    font-size: 0.9rem;
  }
}