:root {
  /* メイン背景（黒）- Main background */
  --main-bg: linear-gradient(90deg, #17292F, #1E1E21);
  --card-bg: linear-gradient(135deg, #484234 20%, #292621 50%, #131314 100%);
  --dark-black: #1F1F22;

  --gold-line: #C7AB6B;

  --gold-text: #C7AB6B;

  --light-gray: #F6F3E9;

  --white-text: #FFFFFF;

  --black-text: #000000;

  --red-text: #DB3C3C;

  --text-dark-color: #1a1a1a;

  --text-light-color: #F6F3E9;

  --light-p: #666;
  
}
/* 各セクションに適度な余白と柔らかい陰影 */
.step,
.flow-step,
.news-item,
.faq-item {
  background: #ffffff;
  border: 1px solid rgba(191, 162, 90, 0.15);
  box-shadow: 
    0 6px 18px rgba(0,0,0,0.06);
}
body {
  background: var(--main-bg);
}

section {
  /*background: linear-gradient(
    180deg,
    #ffffff 0%,
    #f8f6f1 100%
  );*/
  padding: 80px 20px;
  max-width: 1200px;
  margin: 40px auto;
  border-radius: 16px;
  box-shadow: 0 3px 15px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease;
  border: 4px solid var(--gold-line);
}
section:hover {
  transform: translateY(-3px);
}
section:nth-child(odd) {
  background: var(--dark-black);
}
section:nth-child(even) {
  background: var(--light-gray);
}
/* タイトル */
section h2 {
  text-align: center;
  font-size: clamp(1.8rem, 2.5vw, 2.3rem);
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 64px;
}
section:nth-child(odd) h2 {
  color: var(--gold-text);
}
section:nth-child(even) h2 {
  color: var(--text-dark-color);
}

section:nth-child(odd) p {
  color: var(--text-light-color);
}
section:nth-child(even) p {
  color: var(--text-dark-color);
}


.section-feature,
.section-plan,
.section-faq {
  background: linear-gradient(
    180deg,
    #fbf9f4 0%,
    #f1eee6 100%
  );
}
.feature:hover,
.step:hover {
  box-shadow:
    0 10px 28px rgba(191, 162, 90, 0.25);
}


/*mujin button*/
  .mujin-btn {
    background-color: #c6a969 !important;
    color: #fff !important;                       /* Chữ trắng */
    padding: 0.6rem 1.2rem !important;            /* Đệm vừa đủ */
    font-size: 1rem !important;                   /* Kích thước chữ vừa phải */
    font-weight: 600 !important;                  /* In đậm một chút */
    border: none !important;                     /* Không viền */
    border-radius: 0.375rem !important;           /* Bo tròn nhẹ */
    text-transform: uppercase !important;         /* Viết hoa CTA */
    letter-spacing: 0.5px !important;             /* Giãn chữ nhẹ */
    transition: background-color 0.3s ease, transform 0.2s ease !important;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15) !important;  /* Đổ bóng nhẹ */
  }

  .mujin-btn:hover {
    color: #fff !important;
    background-color: #a58a4c !important;
    transform: translateY(-1px) !important;       /* Hiệu ứng nổi nhẹ */
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2) !important;
  }

  .mujin-btn:active {
    background-color: #a58a4c !important;         /* Khi bấm giữ */
    transform: translateY(1px) !important;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2) !important;
  }
  .mujin-btn:disabled {
    color: #6c757d !important;
  }
/* ① ヒーロー・メイン紹介 */
.section-hero {
  background: linear-gradient(145deg, #ffffff, #fdf8f3);
}

/* ② サービス紹介 */
.section-feature {
  background: linear-gradient(145deg, #fffef8, #fbf7ef);
  
}

/* ③ ご入会までの流れ */
.section-flow {
  background: linear-gradient(145deg, #fefaf4, #fffdf8);
}

/* ④ 料金プラン */
.section-plan {
  background: linear-gradient(145deg, #fffefc, #f8f5ef);
}

/* ⑤ お問い合わせ */
.section-contact {
  background: linear-gradient(145deg, #faf7f2, #fff);
}

h2 {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 1.8rem;
  text-align: center;
  color: #2c2c2c;
  letter-spacing: 0.03em;
  margin-bottom: 30px;
  position: relative;
}

h2::after {
  content: "";
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, #c7ab6b, #caac5e, #d4af37);
  margin: 12px auto 0;
  border-radius: 2px;
}
/*spinner*/
#loading-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.4);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 9999;
}

.spinner {
  width: 60px;
  height: 60px;
  border: 6px solid #f3f3f3;
  border-top: 6px solid #007bff;
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.section-feature + .section-flow,
.section-flow + .section-plan,
.section-plan + .section-contact {
  margin-top: 60px;
  
}
h1, h2, h3 {
  color: #1a1a1a;/* 完全な黒にしない */
}
h1, h2, h3 {
  font-family: "Noto Sans JP", sans-serif;
}

h2 {
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 600;
  letter-spacing: 0.06em;
}


  a {text-decoration:none; color:white;}
  button {cursor:pointer;}

  /* ヘッダー / ヒーロー */

  header {
    background:  linear-gradient(rgba(255, 255, 255, 0.15), rgba(0, 0, 0, 0.3)),
    url('../images/home-img/webp/header.webp') center/cover no-repeat;
    height:100vh;
    display:flex;
    flex-direction:column;
    align-items:flex-start; /* ←ここ変更 */
    text-align:left;        /* ←ここ変更 */

    color:#C7AB6B;
    letter-spacing:0.05em;
    padding-top:-30%;
    padding-left:-20%;        /* ←左余白 */
    position:relative;
  }
 

/* =========================================
   NAVBAR – PHẦN CHUNG
========================================= */
.navbar-custom {
    position: fixed;
    z-index: 2000;
    overflow: visible !important;
}
.navbar .navbar-sns-icon {
    color: #ffffff !important;
    font-size: 33px;
    padding: 0 25px 0 0;
}
.navbar .navbar-sns-icon:hover {
    opacity: 0.5;
}
/* Khi navbar trong suốt → màu trắng */
.navbar.navbar-custom.navbar-transparent .navbar-sns-icon {
    color: #ffffff !important;
}
/* Khi scroll → navbar mất .navbar-transparent → đổi màu */
.navbar.navbar-custom:not(.navbar-transparent) .navbar-sns-icon {
    color: #66615B !important;
}




.hero-header {
  position: relative;
  height: 100vh;
  overflow: hidden;
  padding-top:120px;   /* ←追加 */
  color: var(--light-gray);
  border-bottom: 4px solid var(--gold-line);
  
}
/* リンクマルチスポーツ */
.detail-btn {
  display: inline-block;
  margin-top: 12px;
  padding: 8px 18px;
  background-color: #000;
  color: #fff;
  text-decoration: none;
  border-radius: 20px;
  font-size: 14px;
  transition: 0.3s;
}

.detail-btn:hover {
  background-color: #333;
}

/* 動画 */
.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.hero-media iframe {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100vw;
  height: 56.25vw; /* 16:9 */
  min-height: 100vh;
  min-width: 177.78vh;
  transform: translate(-50%, -50%) ;
  pointer-events: none;
}
@media (max-width: 768px) {

.hero-media iframe {
  width: 177.78vh;
  height: 100vh;
}

}

/* 暗幕（高級感の要） */


/* 文字 */
.hero-content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content:center;
  align-items: flex-start; /* 左寄せ */
  max-width:600px;   /* 横幅制限 */
  margin-left: 5%; 
  transform: translateY(-120px);
}

.hero-content h1 {
  font-size:clamp(1.8rem,4vw,3.2rem); /* 画面サイズ対応 */
  font-weight: 700;
  line-height:1.3;
  letter-spacing: 0.08em;
  color: #FFFFFF;
  text-shadow: 0 6px 18px rgba(0,0,0,0.6);
  text-align: left;        /* 左寄せ */
  padding-right: 0%; 
  padding-top:5px; 

  
}
.hero-content h2 {
  font-size:clamp(1rem,2vw,2.2rem);
  font-weight: 600;
  letter-spacing: 0.08em;
  color: #FFFFFF;
  text-shadow: 0 6px 18px rgba(0,0,0,0.6);
  
}

.hero-content p {
  font-size:clamp(1rem,2vw,2rem);
  font-weight: 600;
  letter-spacing: 0.05em;
	margin-bottom:20px; 
	text-align:center; 
  color:  #d4af37;
	padding-top:1px; 
  margin-top: 30px;
  opacity: 0.9;
}

.hero-check{
  list-style:none;
  padding:0;
  margin-top:20px;
}

.hero-check li{
  position:relative;
  padding-left:30px;
  font-size:clamp(1rem,2vw,1.4rem);
  font-weight:600;
  margin-bottom:5px;
  letter-spacing:0.05em;
  color:#ffffff;
}


.hero-check li::before{
  content:"✔";
  position:absolute;
  left:0;
  top:8px;
  width:18px;
  height:18px;
  border-radius:80%;
  background:#d4af37;
  color:#3a3535;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:12px;
  font-weight:700;
}

  @media (max-width:768px){

    .hero-content{
      margin-left:20px;
      margin-right:20px;
      transform: translateY(-60px); /* 上ズレを弱く */
      max-width:100%;
    }
    
    .hero-content h1{
      font-size:clamp(2.2rem,6vw,2.2rem);
    }
    
    .hero-content h2{
      font-size:clamp(1.2rem,4vw,1.4rem);
    }
    
    .hero-check li{
      font-size:1.2rem;
      line-height:1.6;
      
    }
    
    
    }
/* ボタンデザイン */

/* ボタン */
.header-buttons {
  position: fixed;      /* スクロールしても常に表示 */
  bottom: 60px;         /* 画面下からの距離 */
  right: 10px;          /* 画面右からの距離 */
  display: flex;
  flex-direction: column; /* ← 横並びから縦並びへ変更 */
  gap: 12px;            /* ボタンの上下間隔 */
  z-index: 9999 !important;        /* 最前面に表示 */
}
.cta-btn {
    background: linear-gradient(
    135deg,
    #bfa25a,
    #d4af37
  );
  color: var(--black-text);
  padding: 14px 28px;
  border-radius:30px;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  box-shadow: 0 6px 12px rgba(212, 175, 55, 0.3);
  transition: all 0.3s ease;
  text-decoration: none;
  text-align: center;
}

.cta-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 16px rgba(198,166,100,0.5);
  background: linear-gradient(
    135deg,
    #a98c46,
    #c9a632
    );
  }
  @media (max-width: 767.98px) {
    .header-buttons {
      bottom: 20px;
      right: unset;
      left: 10px;
    }
    .cta-btn {
      padding: 7px 14px;
      font-size: 0.8rem;
    }
  }


  h2 {
  	text-align:center; 
  	font-size:2.1rem; 
  	margin-bottom:40px;
  }
/* ===============================
   FEATURES（高級感デザイン）
================================ */



/* グリッド */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  
}
.features-section p {
  font-size: 1.2rem;
  font-weight: 550;
  letter-spacing: 0.05em;
	margin-bottom:20px; 
	text-align:center; 
	padding-top:0px; 
  margin-top: 5px;
  opacity: 0.9;
}
/* カード */
.feature {
  background: var(--card-bg);
  border-radius: 22px;
  padding: 26px;
  text-align: center;
  box-shadow: 0 14px 36px rgba(0,0,0,0.06);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
  border: 2px solid var(--gold-line);
}

.feature:hover {
  transform: translateY(-8px);
  box-shadow: 0 22px 50px rgba(0,0,0,0.12);
}

/* 画像 */
.feature img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 16px;
  margin-bottom: 22px;
}

/* 見出し */
.feature h3 {
  font-size: clamp(1rem, 1.2vw, 1.15rem);
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: 0.03em;
  color: var(--light-gray);
}

/* 説明文 */
.feature p {
  font-size: clamp(0.85rem, 1vw, 0.95rem);
  color: var(--light-gray) !important;
  line-height: 1.7;
  text-align: center;   /* ←追加 */
  
}
/* スマホ */
@media (max-width:768px){

  .features{
    grid-template-columns:1fr;
    gap:28px;
    padding:0 18px;
  }
  
  .feature{
    padding:30px 22px;
  }
  
  }
/* ===============================
   体験の流れセクション
   =============================== */
#trial_flow p{
  text-align:center;
  max-width:700px;
  margin:0 auto;
  margin-bottom: 50px;
}
.steps {
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:30px;
  padding: 0 24px;
}
.step {
  flex:1 1 250px;
  background:#fffdf8;
  padding:40px 25px;
  border-radius:12px;
  text-align:center;
border: 1px solid rgba(212, 175, 55, 0.15);
  box-shadow: 0 4px 15px rgba(0,0,0,0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.feature:hover, .step:hover, .testimonial:hover, .flow-step:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(212, 175, 55, 0.25);
}


/* ===============================
   TESTIMONIALS（ユーザーの声）
================================ */


/* グリッド */
.testimonials {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 36px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 各カード */
.testimonial {
  background: #ffffff;
  border-radius: 20px;
  padding: 32px 28px;
  box-shadow: 0 14px 36px rgba(0,0,0,0.06);
  position: relative;
}

/* 引用マーク（高級感） */
.testimonial::before {
  content: "“";
  position: absolute;
  top: 18px;
  left: 22px;
  font-size: 4rem;
  color: rgba(0,0,0,0.06);
  font-family: "Noto Sans JP", sans-serif;
  line-height: 1;
}

/* テキスト */
.testimonial p {
  font-size: clamp(0.9rem, 1.05vw, 1rem);
  line-height: 1.8;
  color: #444;
  position: relative;
  z-index: 1;
}

/* ===============================
   料金セクション
   =============================== */
/* pricing section */
.pricing {
}

/* container */
.pricing .pricing-container {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

/* title */
.pricing h2 {
  margin-bottom: 10px;
}

/* underline */
.pricing .title-divider {
  width: 60px;
  height: 3px;
  background-color: #c6a969;
  margin: 0 auto 30px;
}

/* description */
.pricing .pricing-desc {
  margin-bottom: 50px;
}

/* table wrapper */
.pricing .pricing-table-wrap {
  overflow-x: auto;
  border: 2px solid var(--gold-line);
  border-radius: 12px;
}

/* table */
.pricing table {
  width: 100%;

  border-collapse: collapse;
  background: #fff;
  box-shadow: 0 4px 25px rgba(0,0,0,0.08);
  overflow: hidden;
}

/* thead */
.pricing thead {
  background: #f3f2ef;
  color: #555;
  font-size: 1.1rem;
}

.pricing th {
  padding: 18px;
  border-bottom: 2px solid #e5e4e0;

}

/* tbody */
.pricing tbody {
  font-size: 1.05rem;
}

.pricing tbody tr {
  border-bottom: 1px solid #eee;
}

.pricing tbody tr:last-child {
  border-bottom: none;
}

.pricing td {
  padding: 18px;
}

/* plan name */
.pricing .plan-name {
  font-weight: 600;
  color: #222;
}

/* price */
.pricing .plan-price {
  color: #c6a969;
  font-weight: 700;
}

/*pricing note*/
.pricing-note{
  margin-top: 1rem;
}

/*施設利用方法 */
.flow-steps {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;

}

.flow-step {
  background: #fffdf8;
  padding: 20px 25px;
  border-radius: 10px;
  border: 1px solid rgba(212, 175, 55, 0.15);
  box-shadow: 0 4px 15px rgba(0,0,0,0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;

}

.flow-step h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
}

.flow-step p {
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 10px;
}

.flow-step ul {
  padding-left: 20px;
  margin-bottom: 10px;
}

.flow-step ul li {
  list-style-type: disc;
  margin-bottom: 5px;
}

/* 最新情報セクション */
.news {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px; /* ニュース間の余白 */

}

.news-item {
  background: #f9f9f9;
  padding: 25px 30px;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.05);
}

.news-item h3 {
  font-size: 1.3rem;
  margin-bottom: 10px;
  color: #4a4a4a;
}

.news-item p {
  font-size: 1.1rem;
  line-height: 1.6;
  color: #555 !important;
}

/* ===============================
   FAQセクション
   =============================== */
.faq {
  max-width:800px;
  margin:0 auto;
}
.faq-item {
  margin-bottom:20px;
  border:1px solid #ddd;
  border-radius:8px;
  overflow:hidden;
}
.section-faq {
  background: linear-gradient(145deg, #fffef8, #f8f5ef);
  padding: 80px 20px;
  border-radius: 16px;
  box-shadow: 0 3px 15px rgba(0,0,0,0.05);
}

.section-faq h2 {
  font-family: "Noto Sans JP", sans-serif;
  text-align: center;
  font-size: 2rem;
  color: #2c2c2c;
  margin-bottom: 40px;
  position: relative;
}

.section-faq h2::after {
  content: "";
  display: block;
  width: 80px;
  height: 3px;
  margin: 12px auto 0;
  background: linear-gradient(90deg, #d4af37, #f1c40f, #d4af37);
  border-radius: 2px;
}
h3 {
  text-align: center !important;
  width: 100%;
  display: block;
  margin: 40px auto 25px;
  font-size: 1.4rem;
  font-weight: 600;
  color: #222;
  position: relative;
  padding-bottom: 10px;
}



/* 質問ボタン */

.faq-question {
  width: 100%;
  text-align: left;
  background: #faf8f3;
  color: #4a4a4a;
  border: 1px solid #e5e5e5;
  border-radius: 8px 8px 0 0;
  padding: 15px 20px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.faq-question:hover {
  background: #f1e9d2;
}

/* 回答部分 */
.faq-answer {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  background: #fffef8;
  border-left: 3px solid #d4af37;
  padding: 0 30px;
  border-radius: 0 0 8px 8px;
  line-height: 1.7;
  color: #444;
  font-size: 0.95rem;

  transition: max-height 0.4s ease, opacity 0.3s ease, padding 0.3s ease;
}

/* khi mở */
.faq-answer.active {
  max-height: 200px; /* chỉnh lớn hơn nội dung */
  opacity: 1;
  padding: 15px 20px;
}

/* スマホ対応 */
@media (max-width: 768px) {
  .faq-category {
    padding: 25px 20px;
  }
  .faq-question {
    font-size: 0.95rem;
  }
}


/* ===============================
   contact
   =============================== */
#contact {
  text-align: center;
  padding: 80px 20px;
  background: linear-gradient(to bottom, #f9f9f9, #ffffff);
}

#contact h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 20px;
}

#contact p {
  color: #555;
  font-size: 1rem;
  margin-bottom: 30px;
}

#contact a {
  display: inline-block;
  background-color: #007bff;
  color: white;
  padding: 14px 36px;
  border-radius: 9999px;
  font-size: 1.1rem;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transition: background-color 0.3s;
}

#contact a:hover {
  background-color: #005fcc;
}

/* LINEお問い合わせセクション */
.contact-line {
  background: #E5F5EA;
  text-align: center;
  padding: 60px 20px;
  margin-top: 60px;
  border-top: 3px solid #00B900;
}

.line-container {
  max-width: 700px;
  margin: 0 auto;
}

.contact-line h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: #1C1C1C;
  margin-bottom: 20px;
}

.contact-line p {
  font-size: 1rem;
  color: #4a4a4a;
  line-height: 1.8;
  margin-bottom: 10px;
}

.signature {
  font-weight: bold;
  margin-top: 15px;
  color: #555;
}

/* LINEボタン */
.line-btn {
  display: inline-block;
  background: #06C755;
  color: white;
  font-size: 1.1rem;
  font-weight: 600;
  padding: 14px 40px;
  border-radius: 50px;
  text-decoration: none;
  margin-top: 25px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
  transition: all 0.3s ease;
}

.line-btn:hover {
  background: #00B900;
  transform: translateY(-3px);
}
/* アクセス */

.access-content {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 40px;
  max-width: 1000px;
  margin: 0 auto;
}

.access-info {
  flex: 1;
  min-width: 280px;
  text-align: left;
  font-size: 1.1rem;
  color: #444;
  line-height: 1.8;
}

.access-map {
  flex: 1;
  min-width: 320px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
 /* ===============================
   フッター
   =============================== */
footer {
  background: linear-gradient(to right, #1c1c1c, #2c2c2c);
  text-align: center;
  padding: 60px 20px;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  box-shadow: inset 0 10px 20px rgba(0,0,0,0.3);
}
footer p {
  color: #eee;
}
footer a {
  color:white;
  margin:0 10px;
}
.sns-icons {
  margin: 20px 0;
  display: flex;
  justify-content: center; /* 中央揃え */
  gap: 25px; /* アイコン間の間隔 */
}

.sns-icons a svg {
  width: 36px;
  height: 36px;
  fill: white; /* 白色 */
  transition: transform 0.3s, fill 0.3s;
}

.sns-icons a:hover svg {
  transform: scale(1.2); /* ホバーで拡大 */
  fill: #D4AF37;          /* ホバーで色変更 */
}
/* ===============================
   スマホ対応
   =============================== */
@media(max-width:768px){
  header h1 {font-size:2rem;}
  header p {font-size:1rem;}
  .features, .steps, .testimonials {flex-direction:column;}
  section {padding:60px 15px;}
}




/* Concept セクション */
.concept-section {
  padding: 80px 20px;
  background-color: #f8f8f8;
}

.concept-container {
  display: flex;
  align-items: flex-start;    /* 左右揃え */
  justify-content: flex-start;
  max-width: 1200px;
  margin: 0 auto;
  gap: 40px;                  /* 左右の間隔 */
  flex-wrap: wrap;           /* 横並びを強制 */
}

/* 左側テキスト */
.concept-text {
  flex: 1;
  min-width: 300px;
}

.concept-text h2 {
  font-size: 36px;
  margin-bottom: 20px;
  color: #4a4a4a;
}

.concept-text p {
  font-size: 18px;
  line-height: 1.6;
  color: #555;
}

/* 右側画像 */
.concept-image {
  flex: 0 0 auto;             /* サイズ固定 */
}

.concept-image img {
  width: 500px;               /* 普通サイズに調整 */
  height: auto;
  border-radius: 10px;
  object-fit: cover;
  border: 2px solid var(--gold-line);
}
@media (max-width: 991.98px) {
  .concept-image {
    width:100%;
  }
  .concept-image img {
    width: 100%;
  }  
}

/*scroll to top*/
.scroll-top {
  position: fixed;
  bottom: 140px;
  right: 0;

  width: 50px;
  height: 50px;

  border: none;
  border-radius: 20% 0 0 20%;

  background: var(--gold-text);
  color: var(--black-text);

  font-size: 20px;
  cursor: pointer;

  display: flex;
  align-items: center;
  justify-content: center;

  z-index: 999;

  box-shadow: 0 6px 18px rgba(0,0,0,0.25);

  /* ẩn ban đầu */
  transform: translateX(120%);
  opacity: 0;

  transition:
    transform .45s cubic-bezier(.19,1,.22,1),
    opacity .3s ease,
    background .25s ease;
}

/* hiện ra */
.scroll-top.show {
  transform: translateX(0);
  opacity: 1;
}

/* hover button */
.scroll-top:hover {
  background: color-mix(in srgb, var(--gold-text), white 10%);
}

/* icon animation */
.scroll-top i {
  transition: transform .25s ease;
  color: var(--black-text);
}

.scroll-top:hover i {
  transform: translateY(-4px);
}

@media (max-width: 767.98px) {
  .scroll-top {
    bottom: 20px;
    right: 10px;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: 20px;
    background: color-mix(in srgb, var(--gold-text) 70%, transparent);
  }
}