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

    body {
      font-family: "Noto Sans JP", sans-serif;
      color: #222;
      background: #fff;
      line-height: 1.8;
    }

    a {
      text-decoration: none;
      color: inherit;
    }

    header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 100;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid #eee;
    }

    .header-inner {
      max-width: 1180px;
      margin: auto;
      padding: 18px 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .logo {
      font-size: 24px;
      font-weight: 800;
      color: #005bac;
      letter-spacing: 0.05em;
    }

    nav {
      display: flex;
      gap: 28px;
      font-size: 14px;
      font-weight: 700;
      align-items: center;
    }

    .hero {
      min-height: 720px;
      padding: 140px 20px 80px;
      display: flex;
      align-items: center;
      background:
        linear-gradient(90deg, rgba(0, 48, 98, 0.92), rgba(0, 108, 180, 0.55)),
        url("https://images.unsplash.com/photo-1581092160607-ee22621dd758?auto=format&fit=crop&w=1600&q=80")
        center/cover no-repeat;
      color: #fff;
    }

    .hero-content {
      max-width: 1180px;
      width: 100%;
      margin: auto;
    }

    .label {
      color: #4dd8ff;
      font-size: 13px;
      font-weight: 800;
      letter-spacing: 0.18em;
      margin-bottom: 18px;
    }

    .hero h1 {
      font-size: clamp(38px, 6vw, 72px);
      line-height: 1.25;
      margin-bottom: 24px;
    }

    .hero p {
      max-width: 680px;
      font-size: 18px;
      margin-bottom: 36px;
    }

    .btn-wrap {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom:30px;
    }

    .btn {
      display: inline-block;
      padding: 15px 34px;
      border-radius: 999px;
      font-weight: 800;
      transition: 0.3s;
    }

    .btn-main {
      background: #00a6ff;
      color: #fff;
    }

    .btn-main:hover {
      background: #0088d6;
      transform: translateY(-3px);
    }

    .btn-sub {
      background: #fff;
      color: #005bac;
    }

    section {
      padding: 90px 20px;
    }

    .inner {
      max-width: 1180px;
      margin: auto;
    }

    .section-title {
      text-align: center;
      margin-bottom: 50px;
    }

    .section-title span {
      color: #00a6ff;
      font-weight: 800;
      letter-spacing: 0.16em;
      font-size: 13px;
    }

    .section-title h2 {
      font-size: 36px;
      margin-top: 8px;
    }

    .service-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #fff;
      border: 1px solid #e5eef5;
      border-radius: 22px;
      padding: 34px 26px;
      box-shadow: 0 10px 30px rgba(0, 70, 130, 0.08);
      transition: 0.3s;
    }

    .service-card:hover {
      transform: translateY(-8px);
      border-color: #00a6ff;
    }

    .service-card h3 {
      color: #005bac;
      font-size: 22px;
      margin-bottom: 12px;
    }

    .feature {
      background: #f4f9fd;
    }

    .feature-box {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }

    .feature-text h2 {
      font-size: 38px;
      margin-bottom: 20px;
    }

    .feature-list {
      display: grid;
      gap: 18px;
    }

    .feature-list li {
      list-style: none;
      background: #fff;
      padding: 18px 22px;
      border-radius: 14px;
      font-weight: 700;
      box-shadow: 0 8px 24px rgba(0, 70, 130, 0.08);
    }

    .feature-list li::before {
      content: "✓";
      color: #00a6ff;
      margin-right: 10px;
      font-weight: 900;
    }

    .flow-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 22px;
    }

    .flow-card {
      background: #fff;
      border-radius: 20px;
      padding: 30px 24px;
      border: 1px solid #e5eef5;
      position: relative;
    }

    .flow-card span {
      font-size: 42px;
      font-weight: 900;
      color: #d9f2ff;
    }

    .flow-card h3 {
      color: #005bac;
      margin-bottom: 10px;
    }

    .cta {
      background: linear-gradient(135deg, #003b73, #00a6ff);
      color: #fff;
      text-align: center;
      border-radius: 36px;
      margin: 40px auto 90px;
      max-width: 1180px;
    }

    .cta h2 {
      font-size: 36px;
      margin-bottom: 16px;
    }

    footer {
      background: #002b52;
      color: #fff;
      text-align: center;
      padding: 30px 20px;
      font-size: 14px;
    }

    .fade {
      opacity: 0;
      transform: translateY(30px);
      transition: 0.8s;
    }

    .fade.show {
      opacity: 1;
      transform: translateY(0);
    }
    .site-footer {
  background: #002b52;
  color: #fff;
}

.footer-inner {
  max-width: 1180px;
  margin: auto;
  padding: 60px 20px;
}

.footer-logo {
  font-size: 30px;
  font-weight: 900;
  margin-bottom: 24px;
}

.footer-links {
  display: flex;
  gap: 24px;
  margin-bottom: 24px;
  justify-content: center;
  flex-wrap: wrap;
}

.footer-links a {
  color: rgba(255,255,255,0.8);
}

.footer-copy {
  color: rgba(255,255,255,0.5);
}

.price-grid {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 24px;
}

.detail-page {
  max-width: 1180px;
  margin: auto;
  padding: 140px 20px 100px;
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.detail-image {
  height: 500px;
  border-radius: 28px;
  background: linear-gradient(135deg,#e9f8ff,#fff);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 60px;
  font-weight: 900;
  color: #005bac;
}

.detail-title {
  font-size: 52px;
  margin-bottom: 20px;
  color: #005bac;
}

.detail-text {
  font-size: 18px;
  color: #666;
  margin-bottom: 30px;
}

.detail-price-box {
  background: #f5f9fd;
  border-radius: 24px;
  padding: 30px;
  margin-bottom: 30px;
}

.detail-price-box span {
  display: block;
  margin-bottom: 12px;
}

.detail-price-box strong {
  display: block;
  font-size: 48px;
  color: #00a6ff;
}

.tokusho-page {
  max-width: 1180px;
  margin: auto;
  padding: 140px 20px 100px;
}

.tokusho-box {
  background: #fff;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.tokusho-table {
  width: 100%;
  border-collapse: collapse;
}

.tokusho-table th,
.tokusho-table td {
  padding: 24px;
  border-bottom: 1px solid #eee;
  text-align: left;
}

.tokusho-table th {
  width: 280px;
  background: #f5f9fd;
  color: #005bac;
}

@media(max-width:900px){

  .price-grid,
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .detail-title {
    font-size: 36px;
  }

  .detail-image {
    height: 320px;
    font-size: 42px;
  }

}
    @media (max-width: 900px) {
      nav {
        display: none;
      }

      .service-grid,
      .flow-grid,
      .feature-box {
        grid-template-columns: 1fr;
      }

      .hero {
        min-height: 640px;
      }

      .section-title h2,
      .feature-text h2,
      .cta h2 {
        font-size: 28px;
      }
    }
    
    /* 商品詳細 */
    .container {
  max-width: 1180px;
  margin: auto;
  padding: 130px 20px 80px;
}

.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: start;
}

.product-image {
  border-radius: 28px;
  overflow: hidden;
  height: 460px;
  box-shadow: 0 12px 30px rgba(0, 70, 130, 0.08);
  background: #f5f9fd;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.lead {
  font-size: 17px;
  color: #555;
  margin-bottom: 28px;
}

.price-box {
  background: #f4f9fd;
  border-radius: 20px;
  padding: 24px;
  margin-bottom: 28px;
}

.price-box p {
  margin: 0;
  font-weight: 700;
}

.price {
  font-size: 42px;
  color: #00a6ff;
  font-weight: 900;
}

.info-table {
  margin-top: 60px;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 70, 130, 0.08);
}

.info-table table {
  width: 100%;
  border-collapse: collapse;
}

.info-table th,
.info-table td {
  padding: 20px;
  border-bottom: 1px solid #e5eef5;
  text-align: left;
}

.info-table th {
  width: 240px;
  background: #f0f8ff;
  color: #005bac;
}

.option-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.option-card {
  background: #fff;
  border: 1px solid #e5eef5;
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 8px 24px rgba(0, 70, 130, 0.06);
}

.option-card h3 {
  color: #005bac;
  margin-bottom: 10px;
}

@media (max-width: 900px) {
  .product-detail,
  .option-grid {
    grid-template-columns: 1fr;
  }

  .product-image {
    height: 320px;
  }

  .info-table th,
  .info-table td {
    display: block;
    width: 100%;
  }
}

.price-section {
  background: #f8fbff;
}

.price-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
}

.price-card {
  background: #fff;
  border: 1px solid #e5eef5;
  border-radius: 26px;
  padding: 18px 18px 24px;
  box-shadow: 0 12px 34px rgba(0, 70, 130, 0.08);
  transition: 0.3s;
  overflow: hidden;
}

.price-card:hover {
  transform: translateY(-8px);
  border-color: #00a6ff;
}

.price-img-link {
  display: block;
  margin-bottom: 20px;
}

.price-product-img {
  width: 100%;
  height: 210px;
  object-fit: cover;
  display: block;
  border-radius: 20px;
  background: linear-gradient(135deg, #e8f7ff, #fff);
}

.price-category {
  color: #00a6ff;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}

.price-card h3 {
  font-size: 22px;
  color: #005bac;
  margin-bottom: 8px;
}

.price-card p {
  color: #555;
  font-size: 14px;
  margin-bottom: 10px;
}

.price-card strong {
  display: block;
  color: #111;
  font-size: 26px;
  margin-bottom: 18px;
}

.price-btn {
  display: block;
  text-align: center;
  background: #005bac;
  color: #fff;
  padding: 13px;
  border-radius: 999px;
  font-weight: 800;
}

.price-btn:hover {
  background: #00a6ff;
}

@media (max-width: 900px) {
  .price-grid {
    grid-template-columns: 1fr;
  }

  .price-product-img {
    height: 240px;
  }
}

.nav-register {
  background: #00a6ff;
  color: #fff !important;
  padding: 8px 16px;
  border-radius: 999px;
}

.auth-page {
  max-width: 520px;
  margin: auto;
  padding: 150px 20px 100px;
}

.auth-box {
  background: #fff;
  border-radius: 28px;
  padding: 40px;
  box-shadow: 0 12px 34px rgba(0, 70, 130, 0.08);
}

.auth-title {
  text-align: center;
  margin-bottom: 32px;
}

.auth-title span {
  color: #00a6ff;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.auth-title h1 {
  font-size: 32px;
  color: #005bac;
  margin-top: 8px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 700;
  margin-bottom: 8px;
}

.form-group input {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid #d8e8f5;
  border-radius: 12px;
  font-size: 16px;
}

.auth-btn {
  width: 100%;
  border: none;
  background: #00a6ff;
  color: #fff;
  padding: 15px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 800;
  cursor: pointer;
}

.auth-link {
  text-align: center;
  margin-top: 24px;
}

.auth-link a {
  color: #005bac;
  font-weight: 800;
}
.menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 32px;
  cursor: pointer;
  color: #005bac;
}

.mobile-menu {
  display: none;
}

@media (max-width: 900px) {

  .desktop-nav {
    display: none;
  }

  .menu-btn {
    display: block;
  }

  .mobile-menu {
    position: absolute;
    top: 82px;
    left: 0;
    width: 100%;
    background: #fff;
    border-top: 1px solid #eee;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    padding: 20px;
    z-index: 999;
  }

  .mobile-menu.active {
    display: flex;
    flex-direction: column;
    gap: 18px;
  }

  .mobile-menu a {
    color: #222;
    font-weight: 700;
    text-decoration: none;
    font-size: 16px;
  }

  .mobile-register {
    background: #00a6ff;
    color: #fff !important;
    text-align: center;
    padding: 14px;
    border-radius: 999px;
  }

}