.lp {
  background: #f5f5f5;
  padding: 60px 0; /* 横paddingを消す */
  font-size: 24px;
}

.lp {
  overflow-x: hidden;
}

body {
  margin: 0;
}

.lp {
  max-width: none;
}

/* リセットとベーススタイル */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Meiryo', sans-serif;
    line-height: 1.8;
    color: #333;
    background-color: #fff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* セクション共通スタイル */
section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: bold;
    text-align: center;
    margin-bottom: 40px;
    color: #1a1a1a;
}

.section-subtitle {
    font-size: 1.1rem;
    text-align: center;
    margin-bottom: 50px;
    color: #666;
}

/* 画像共通スタイル */
.full-width-img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* ボタンスタイル */
.btn {
    display: inline-block;
    padding: 15px 40px;
    font-size: 1.1rem;
    font-weight: bold;
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, #0066cc, #0099ff);
    color: #fff;
    box-shadow: 0 4px 15px rgba(0, 102, 204, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0052a3, #007acc);
    box-shadow: 0 6px 20px rgba(0, 102, 204, 0.4);
    transform: translateY(-2px);
}

.btn-secondary {
    background: #fff;
    color: #0066cc;
    border: 2px solid #0066cc;
}

.btn-secondary:hover {
    background: #0066cc;
    color: #fff;
}

/* ヒーローセクション */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.8) 0%, rgba(45, 45, 45, 0.7) 100%);
    z-index: 2;
}

.hero .container {
    position: relative;
    z-index: 3;
}

.hero-content {
    text-align: center;
    color: #fff;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: bold;
    margin-bottom: 30px;
    line-height: 1.4;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    font-size: 1.4rem;
    margin-bottom: 40px;
    line-height: 1.8;
    color: #e0e0e0;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* DENBAとは */
.about {
    background-color: #f8f9fa;
}

.about-text {
    font-size: 1.2rem;
    text-align: center;
    margin-bottom: 40px;
    line-height: 2;
}

.research-info {
    background: #fff;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.research-info h3 {
    font-size: 1.8rem;
    color: #0066cc;
    margin-bottom: 20px;
}

.research-info p {
    margin-bottom: 15px;
    line-height: 1.9;
}

.highlight {
    background-color: #fff3cd;
    padding: 20px;
    border-left: 4px solid #ffc107;
    margin-top: 20px;
    font-size: 1.1rem;
}

/* 研究結果 */
.research {
    background-color: #fff;
}

.research-content {
    display: grid;
    gap: 40px;
}

.research-image,
.researcher-section {
    width: 100%;
}

/* 自律神経のバランス */
.balance {
    background: linear-gradient(135deg, #e3f2fd 0%, #f3e5f5 100%);
}

.balance-content {
    max-width: 900px;
    margin: 0 auto;
}

.balance-img {
    width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 6px 30px rgba(0, 0, 0, 0.15);
    margin-bottom: 30px;
}

.balance-conclusion {
    font-size: 1.4rem;
    font-weight: bold;
    text-align: center;
    color: #0066cc;
    margin-top: 30px;
}

/* ご愛用者様の声 */
.testimonials {
    background-color: #f8f9fa;
}

.testimonials-image {
    margin-bottom: 50px;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

.testimonial-card {
    background: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.testimonial-text {
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 15px;
    color: #333;
}

.testimonial-author {
    font-size: 0.9rem;
    color: #0066cc;
    font-weight: bold;
    text-align: right;
}

.testimonial-note {
    font-size: 0.85rem;
    color: #666;
    text-align: center;
    margin-top: 20px;
}

/* 導入事例 */
.case-studies {
    background-color: #fff;
}

.case-study-item {
    margin-bottom: 60px;
    padding: 40px;
    background: #f8f9fa;
    border-radius: 15px;
}

.case-study-title {
    font-size: 2rem;
    color: #0066cc;
    margin-bottom: 30px;
    text-align: center;
}

.case-study-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

.case-study-img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.case-study-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.case-study-text {
    font-size: 1.05rem;
    line-height: 1.9;
}

.case-study-text p {
    margin-bottom: 15px;
}

.case-study-text ul {
    margin-left: 20px;
    margin-top: 15px;
}

.case-study-text li {
    margin-bottom: 10px;
}

.highlight-text {
    background-color: #fff3cd;
    padding: 15px;
    border-left: 4px solid #ffc107;
    margin-top: 20px;
    font-weight: bold;
}

.clinic-comment {
    background: #e3f2fd;
    padding: 25px;
    border-radius: 10px;
    margin-top: 25px;
    border-left: 4px solid #0066cc;
}

.clinic-comment p {
    margin-bottom: 10px;
}

.research-results-box {
    background: #fff;
    padding: 30px;
    border-radius: 10px;
    margin-top: 25px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
}

.research-results-box h4 {
    font-size: 1.3rem;
    color: #d32f2f;
    margin-bottom: 25px;
    text-align: center;
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.results-table th,
.results-table td {
    padding: 15px;
    text-align: center;
    border: 1px solid #ddd;
}

.results-table th {
    background-color: #0066cc;
    color: #fff;
    font-weight: bold;
}

.results-table .highlight-row {
    background-color: #fff3cd;
    font-weight: bold;
}

.results-table .highlight-row td {
    font-size: 1.1rem;
}

.table-note {
    font-size: 0.9rem;
    color: #666;
    text-align: center;
    margin-top: 15px;
}

/* 製品ラインナップ */
.products {
    background: linear-gradient(135deg, #e3f2fd 0%, #f3e5f5 100%);
}

.products-image {
    margin-bottom: 50px;
}

.mat-info {
    background: #fff;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.mat-info h3 {
    font-size: 1.8rem;
    color: #0066cc;
    margin-bottom: 30px;
    text-align: center;
}

.mat-note {
    font-size: 1rem;
    color: #666;
    text-align: center;
    margin-top: 30px;
    line-height: 1.8;
}

/* 医療機器認証 */
.certification {
    background-color: #f8f9fa;
}

.certification-image {
    max-width: 900px;
    margin: 0 auto;
}

/* 安全性 */
.safety {
    background-color: #fff;
}

.safety-image {
    max-width: 1000px;
    margin: 0 auto;
}

/* CTAセクション */
.cta {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    color: #fff;
    text-align: center;
    padding: 100px 0;
}

.cta-title {
    font-size: 2.5rem;
    margin-bottom: 50px;
    line-height: 1.6;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 30px;
}

/* フッター */
.footer {
    background-color: #1a1a1a;
    color: #fff;
    text-align: center;
    padding: 30px 0;
}

.footer p {
    font-size: 0.9rem;
}

/* レスポンシブデザイン */
@media (max-width: 1024px) {
    .case-study-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: 2rem;
    }

    .hero {
        height: 80vh;
        min-height: 500px;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .case-study-grid {
        grid-template-columns: 1fr;
    }

    .cta-title {
        font-size: 1.8rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .case-study-item {
        padding: 25px;
    }

    .case-study-title {
        font-size: 1.6rem;
    }
}

@media (max-width: 480px) {
    section {
        padding: 50px 0;
    }

    .hero {
        height: 70vh;
        min-height: 450px;
    }

    .section-title {
        font-size: 1.6rem;
    }

    .hero-title {
        font-size: 1.8rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .btn {
        padding: 12px 30px;
        font-size: 1rem;
    }

    .about-text {
        font-size: 1rem;
    }

    .balance-conclusion {
        font-size: 1.2rem;
    }

    .case-study-text {
        font-size: 0.95rem;
    }

    .results-table th,
    .results-table td {
        padding: 10px;
        font-size: 0.9rem;
    }
}

/* スムーススクロール */
html {
    scroll-behavior: smooth;
}

/* アニメーション */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content {
    animation: fadeInUp 1s ease-out;
}

/* DENBA保存比較GIFセクション */
.denba-gif-section {
    margin-top: 60px;
    text-align: center;
    animation: fadeInUp 1s ease-out;
}

.gif-title {
    font-size: 1.8rem;
    color: #0066cc;
    margin-bottom: 25px;
    font-weight: bold;
}

.gif-wrapper {
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 4px 25px rgba(0, 0, 0, 0.1);
    display: inline-block;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.gif-wrapper:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 30px rgba(0, 0, 0, 0.15);
}

.denba-gif {
    width: 100%;
    max-width: 480px;
    height: auto;
    border-radius: 10px;
}

.gif-caption {
    font-size: 0.95rem;
    color: #666;
    margin-top: 15px;
}


  /* 縦型購入フローセクション */
.buy-flow-vertical {
    background: #f8fbff;
    padding: 80px 20px;
    text-align: center;
    position: relative;
  }
  
  .buy-title {
    font-size: 2rem;
    color: #003366;
    font-weight: bold;
    margin-bottom: 10px;
  }
  
  .buy-subtitle {
    font-size: 1.1rem;
    color: #0073e6;
    margin-bottom: 50px;
    letter-spacing: 1px;
  }
  
  /* 各ステップ */
  .buy-step {
    background: #fff;
    border-radius: 15px;
    padding: 40px 25px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.1);
    margin: 0 auto 40px;
    max-width: 700px;
    transition: all 0.3s ease;
    animation: fadeInUp 0.8s ease-out;
  }
  
  .buy-step:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 35px rgba(0, 0, 0, 0.15);
  }
  
  .step-number {
    font-size: 1rem;
    color: #0073e6;
    font-weight: bold;
    letter-spacing: 1px;
    margin-bottom: 10px;
  }
  
  .step-title {
    font-size: 1.4rem;
    color: #333;
    margin-bottom: 15px;
    font-weight: 600;
  }
  
  .step-text {
    font-size: 0.95rem;
    color: #555;
    line-height: 1.8;
  }
  
  /* ステップ間の矢印 */
  .step-arrow {
    width: 0;
    height: 0;
    border-left: 20px solid transparent;
    border-right: 20px solid transparent;
    border-top: 25px solid #0073e6;
    margin: 0 auto 40px;
    animation: fadeIn 0.8s ease-out;
  }
  
  /* CVバナー */
.buy-cv-banner {
    margin: 60px auto 40px; /* 上60px、左右自動、下40px */
    background: linear-gradient(135deg, #0073e6, #00aaff);
    border-radius: 20px;
    padding: 30px 30px; /* 上下50px、左右30pxに調整 */
    color: #fff;
    max-width: 700px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.15);
    text-align: center; /* テキスト中央寄せ */
    animation: fadeInUp 1s ease-out;
}

/* モバイル対応 */
@media screen and (max-width: 768px) {
    .buy-cv-banner {
        padding: 40px 20px; /* モバイルでは少し小さめ */
        margin: 40px 20px;  /* 横のマージンも確保 */
    }
}
  
  .cv-text {
    font-size: 1.2rem;
    font-weight: 500;
  }
  
  /* アニメーション */
  @keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
  }
  
  @keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
  }

  /* =========================
   DENBA Health使い方セクション
========================= */
  .denba-howto {
    background: #f9fafc;
    padding: 80px 20px;
    text-align: center;
    animation: fadeInUp 1s ease;
  }
  
  .section-title {
    font-size: 2rem;
    color: #0066cc;
    font-weight: 700;
    margin-bottom: 10px;
  }
  
  .section-subtitle {
    font-size: 1.1rem;
    color: #888;
    margin-bottom: 50px;
  }
  
  /* メインコンテンツ：横並び（PC） */
  .howto-content {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 50px;
    max-width: 1100px;
    margin: 0 auto;
    text-align: left;
  }
  
  /* 左：画像部分 */
  .howto-image img {
    width: 100%;
    max-width: 480px;
    border-radius: 15px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.1);
  }
  
  /* 右：テキスト部分 */
  .howto-text {
    flex: 1;
  }
  
  .howto-intro {
    font-size: 1.05rem;
    color: #333;
    line-height: 1.8;
    margin-bottom: 35px;
  }
  
  /* 各ステップ */
  .howto-step {
    margin-bottom: 25px;
    padding-left: 60px;
    position: relative;
  }
  
  .step-description {
    font-size: 1rem;
    color: #444;
    line-height: 1.8;
  }
  
  .howto-note {
    font-size: 0.9rem;
    color: #777;
    margin-top: 40px;
    line-height: 1.7;
  }
  
  /* アニメーション */
  @keyframes fadeInUp {
    from {
      opacity: 0;
      transform: translateY(40px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  /* スマホ対応 */
  @media (max-width: 768px) {
    .howto-content {
      flex-direction: column;
      align-items: center;
      text-align: center;
    }
  
    .howto-text {
      text-align: left;
      margin-top: 30px;
    }
  
    .howto-step {
      padding-left: 0;
    }
  
    .step-number {
      position: static;
      display: block;
      margin-bottom: 8px;
    }
  }

   /* 動画部分 */
   .denba-movie-section {
    text-align: center;
    background: #f9fafc;
    padding: 60px 20px;
    animation: fadeInUp 1s ease;
  }
  
  .gif-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: #0066cc;
    margin-bottom: 30px;
  }
  
  .gif-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  .denba-video {
    width: 100%;
    max-width: 720px;
    border-radius: 15px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.1);
    margin-bottom: 15px;
  }
  
  .gif-caption {
    font-size: 1rem;
    color: #666;
  }
  
  .denba-movie-section {
    text-align: center;
    background: #f9fafc;
    padding: 60px 20px;
  }
  
  .denba-video {
    width: 100%;
    max-width: 720px;
    border-radius: 15px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.1);
    margin-bottom: 15px;
  }
  
@media (max-width: 480px) {
  .container {
    padding: 0 12px;
  }
}