/* リセット */
*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans JP", sans-serif;
  line-height: 1.6;
  color: #333;
}
img{
  width: 100%;
  margin: 0;
  padding: 0;
  display: block;
}
main{
  position: relative;
  top: 150px;
}

/* 共通 */
.container {
  max-width: 100%;
  width: 95%;
  margin: 0 auto;
}
body {
  margin: 0;
}

h1, h2, h3, h4, h5, h6, p {
  margin: 0;
}
.fade-in {
  transform: translateY(20px);
  transition: all 0.6s ease;
}

.fade-in.show {
  transform: translateY(0);
}
.fade-in {
  transition: all 0.6s ease;
}

.cta.fade-in {
  transition-delay: 0.2s;
}
@media (hover: hover) {
a:hover{
    opacity: .7;
}
}
ul{
    list-style: none;
}

.cta-btn {
  transition: transform 0.2s, box-shadow 0.2s;
}

@media (hover: hover) {
  .cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  }
}



/* ヘッダー */
.header {
  background: #000;
  color: #fff;
  height: 150px;
  position: fixed;
  z-index: 999;
  width: 100%;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.logo {
  width: 400px;
}
.logo img{
  width: 100%;
}
.header-tel{
    max-width: 380px;
    margin-right: 20px;
    margin-top: 2%;
}
.header-line{
    max-width: 300px;
}

/* FV */
.fv {
    max-width: 100%;
    height: auto;
    overflow: hidden;
}
.lead {
  margin-top: 10px;
  font-size: 16px;
}

.cta-group {
  background: url(./img/4D-cta-group-bg.webp) no-repeat;
  background-position: center;
  background-size: cover;
  padding-bottom: 50px;
}
.cta-group h3{
    max-width: 1130px;
    margin: 0 auto;
}
.cta-tag{
    max-width: 1130px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.cta-tag-top{
  max-width: 1130px;
    margin: 20px auto 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

h2{
    max-width: 1130px;
    margin: 0 auto;
}


/* 悩み */
.problem {
  background: url(./img/4D-problem-bg.webp) no-repeat;
  background-position: center;
  background-size: cover;
  padding: 100px 0 0;
  text-align: center;
}

.problem-list {
  width: 100%;
}

/* 症例 */
.value {
  padding: 100px 0;
  text-align: center;
  background: #fce5e8;
}

.ba {
  max-width: 1130px;
  margin: 50px auto 0;
}



/* BeforeAfter詳細 */
.ba-section {
  padding: 100px 0;
  text-align: center;
  color: #fff;
}
.ba-section h3{
  max-width: 1130px;
  margin: 50px auto 0;
}
.ba-grid{
    margin-bottom: 50px;
}


.cta {
  max-width: 1130px;
  background: #f6f9e4;
  border: #00c300 3px solid;
  padding: 25px 25px 25px 50px;
  box-sizing: border-box;
  margin: 0 auto;  
  border-radius: 10px;
}
.cta-inner {
  align-items: center;
  display: flex;
  justify-content: space-between;
  text-align: left;
}
.cta-inner-- {
  align-items: center;
  display: flex;
  justify-content: space-between;
  text-align: left;
}

.cta p {
  margin: 0;
  font-size: 22px;
  color: #000;
}

.cta-btn {
  background: #00c300;
  width: 300px;
  height: 70px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 10px;
  text-decoration: none;
  font-weight: bold;
  font-size: 32px;
  color: #fff;

}


/* 差別化 */
.difference {
    background: url(./img/4D-difference-bg.webp) no-repeat;
  background-position: center;
  background-size: cover;
  padding: 100px 0;
  text-align: center;
}

.grid-4 {
    max-width: 800px;
    margin: 0 auto;
  
  
}

.card {
  margin-top: 50px;
box-shadow: 0 0 5px rgba(0, 0, 0, 0.3);
}

/* ダウンタイム */
.downtime {
  background: url(./img/4D-downtime-bg.webp) no-repeat;
  background-position: top center;
  background-size: cover;
  padding: 100px 0;
}

.step-list {
    max-width: 800px;  
  margin: 0 auto;
  margin-top: 50px;
  list-style: none;
}
.step-list li:last-of-type{
    margin-top: 50px;
}

/* 医師 */
.doctor {
    max-width: 1130px;
    margin: 30px auto 0;
  text-align: center;
}

/* ダウンタイムについて、正直にお伝えします */
.downtime-ex {
    background: #eaf6fd;
  padding: 100px 0;
}

.downtime-ex h4{
    background: #9fd9f6;
    max-width: 1130px;
    height: 100px;
    margin: 50px auto 0;
    display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 40px;
}

.step {
  padding: 80px 20px 25px;
}

.step-inner {
  max-width: 1130px;
  margin: 0 auto;
}

.step-item {
  display: flex;
  align-items: center;
  margin-bottom: 40px;
}

/* 左の丸 */
.step-circle {
  width: 120px;
  height: 120px;
  border: 2px solid #9ed0e6;
  border-radius: 50%;
  text-align: center;
  font-size: 14px;
  color: #9ed0e6;
  display: flex;
  align-items: center;
  flex-direction: column;
  justify-content: center;
  margin-right: 30px;
}

.step-circle span {
  font-size: 28px;
  font-weight: bold;
}

/* 右テキスト */
.step-text h3,
.video h3 {
  margin: 0 0 10px;
  font-size: 32px;
  list-style: 1.2;
}
.video h3{
  margin-bottom: 30px;
}

.step-text p {
  margin: 0;
  line-height: 1.5;
  font-size: 18px;
}

.video {
  max-width: 850px;
  margin: 0 auto;
  text-align: center;
  margin-bottom: 50px;
}
.video iframe {
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
}

/* アフターケア */
.aftercare{
    background: #fce5e8;
    padding: 100px 0;
}
.aftercare-list{
    max-width: 1130px;
    margin: 0 auto;
}
.aftercare-list li{
    margin-top: 50px;
}


/* 料金 */
.pricing {
  padding: 100px 0;
  text-align: center;
}
.pricing-list{
    max-width: 800px;
    margin: 0 auto;
}
.pricing-list li{
    margin-top: 50px;
}
.pricing h3{
  max-width: 1130px;
  margin-left: auto;
  margin-right: auto;
}

/* 最終CTA */
.cta.final {
  background: #00c300;
  color: #fff;
  text-align: center;
  padding: 60px 0;
}

/* フッター */
.footer {
  background: #000;
  color: #fff;
  text-align: center;
  padding: 0 0 100px 0;
  position: relative;
  top: 150px;
}
.footer h2{
  margin-top: 100px;
}
.f-h3{
  max-width: 1130px;
  margin-left: auto;
  margin-right: auto;
  margin-top: 50px;
}
.f-c{
    width: 545px;
    margin: 0 auto;
    margin-top: 50px;
}
.footer-btn-line{
    width: 545px;
    margin: 50px auto 0;
    display: block;
}
.footer p{
    position: absolute;
    bottom: 0;
    width: 100%;
    text-align: center;
}

.mt50{
    margin-top: 50px;
}
.mt100{
    margin-top: 100px;
}

#backToTop {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 40px;
  height: 50px;
  background:#f09191;
  color: white;
  border: none;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  display: none;
  z-index: 999;
}
#backToTop {
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}
#backToTop:hover {
  opacity: 0.8;
}
#backToTop {
  border-radius: 10px;
  width: auto;
  padding: 10px 15px;
}
.link{
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 500px;
  margin: 100px auto 0;
}




/* =========================
   タブレット対応（超重要）
========================= */
@media (max-width: 1170px) {

  /* 全体余白調整 */
  .container {
    width: 90%;
  }

  /* ヘッダー */
  .logo {
    width: 250px;
  }

  .header-tel {
    max-width: 250px;
    margin-right: 0;
  }

  .header-line {
    max-width: 200px;
  }

  /* CTA横並び → 少し余裕持たせる */
  .cta-tag {
    gap: 20px;
  }

  /* CTA */
  .cta-inner {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }
  

  .cta-btn {
    width: 100%;
    max-width: 400px;
  }

  /* グリッド */
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  /* 画像幅 */
  .ba,
  .video {
    width: 100%;
  }

  /* YouTube */
  .video iframe {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
  }

  /* aftercare */
  .aftercare-list {
    width: 100%;
  }

  /* pricing */
  .pricing-list {
    width: 100%;
  }

  .header-tel{
    display: none;
  }
  .cta-tag{
    padding: 0 20px;
    box-sizing: border-box;
    width: 100%;
  }
  .cta{
    max-width: 100%;
    box-sizing: border-box;
    margin-left: 25px;
    margin-right: 25px;
  }
  .aftercare-list,
  .pricing-list{
    max-width: 100%;
    padding: 0;
  }
  .link{
    max-width: 50%;
    margin: 50px auto 0;
  }

}

@media (max-width: 768px) {

  /* =====================
     共通
  ===================== */
  body {
    font-size: 14px;
  }

  .container {
    width: 92%;
  }

  h2 {
    width: 100%;
  }
  main{
    position: relative;
    top: 80px;
  }
  .footer {
    top: 80px;
  }

  .problem,
  .value,
  .ba-section,
  .difference,
  .downtime,
  .downtime-ex,
  .aftercare,
  .pricing{
    padding: 50px 0 25px;
  }
  .problem{
    padding-bottom: 0;
  }
  .downtime{
    padding-bottom: 0;
  }

  /* =====================
     ヘッダー
  ===================== */
  .header {
    height: auto;
    padding: 20px 0;
  }

  .logo {
    max-width: 50%;
  }

  .cta-inner {
    max-width: 35%;
  }
  
  .header-tel,
  .header-line {
    max-width: 100%;
  }
  .header-tel{
    max-width: 0;
  }

  /* =====================
     CTAグループ
  ===================== */
  .cta-tag {
    flex-direction: column;
    gap: 15px;
  }

  .cta-group{
    padding-bottom: 25px;
  }
  

  /* =====================
     CTA（重要）
  ===================== */
  .cta {
    padding: 20px;
    margin: 0 20px;
  }

  .cta-inner {
    flex-direction: column;
    gap: 15px;
    text-align: center;
  }
  .cta-inner--{
    text-align: center;
    display: block;
    
  }

  .cta p {
    font-size: 13px;
    letter-spacing: -0.5px;
  }

  .cta-btn {
    width: 200px;
    font-size: 20px;
    height: 60px;
    margin-top: 15px;
      margin-left: auto;
  margin-right: auto;
  }
  .cta-tag-top{
    padding: 0 25px;
    margin-top: 10px;
  }

  .card:nth-of-type(1) {
    margin-top: 0px;
  }


  /* =====================
     グリッド
  ===================== */
  .ba-grid{
    padding: 0 20px;
    margin-bottom: 20px;
  }
  .grid-4 {
    grid-template-columns: 1fr;
    box-sizing: border-box;
    margin-top: 20px;
  }

  .problem-list{
    padding: 0 20px;    
  }
  
  .ba,
  .ba-section h3{
    max-width: 100%;
    margin-top: 0;
  }
  .ba-section h3{
    padding-top: 20px;
  }
  
  /* =====================
     ステップ（ダウンタイム）
  ===================== */
  .downtime-ex h4{
    height: auto;
    padding: 15px;
    text-align: center;
    font-size: 18px;
    margin-top: 20px;
  }
  .step{
    padding: 25px 0 0;
  }
  .step-list{
    max-width: 100%;
    margin-top: 20px;
    padding: 0;
  }
  .step-item {
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-bottom: 20px;
  }
  .step-list li:last-of-type{
    margin-top: 25px;
  }

  .step-circle {
    width: 80px;
    height: 80px;
    margin-right: 0;
    margin-bottom: 10px;
  }

  .step-text h3,
  .video h3{
    font-size: 17px;
    line-height: 1.25;
    letter-spacing: -0.5px;
  }

  .video h3{
    margin-top: 50px;
    margin-bottom: 20px;
  }

  .step-text p {
    font-size: 12px;
    text-align: center;
    letter-spacing: -0.7px;
  }

  /* =====================
     動画
  ===================== */
  .video {
    width: 100%;
    padding: 0 20px;
    margin-bottom: 25px;
  }
  

  .video iframe {
    width: 100%;
    aspect-ratio: 16 / 9;
  }

  /* =====================
     aftercare / pricing
  ===================== */
  .aftercare-list,
  .pricing-list {
    width: 100%;
    padding: 0;
  }
  .aftercare-list li{
    margin-top: 20px;
  }

  .pricing-list li{
    margin-top: 20px;
  }

  /* =====================
     フッター
  ===================== */
  .f-c,
  .footer-btn-line {
    width: 100%;
    max-width: 320px;
    margin-top: 40px;
  }
  .link{
    max-width: 60%;
    margin: 50px auto 0;
  }
  

  /* =====================
     余白調整
  ===================== */
  .mt50 {
    margin-top: 30px;
  }

  .mt100 {
    margin-top: 50px;
  }

}

.pc { display: block; }
.tb, .sp { display: none; }

@media (max-width: 1170px) {
  .pc { display: none; }
  .tb { display: block; }
}

@media (max-width: 768px) {
  .tb { display: none; }
  .sp { display: block; }
  .card {
    margin-top: 20px;
  }

  #backToTop{
    bottom: 15px;
    right: 15px;
  }


  .footer h2{
    margin-top: 50px;
  }
  .f-h3{
    margin-top: 15px;
  }
  .f-area{
    padding: 0 25px;
  }
}