/* --- 1. 基本設定 (Base Styles) --- */
        :root {
            --text-color: #333333;
            --accent-color: #C5A065; /* ブランドカラー */
            --bg-color: #ffffff;
            --section-bg: #f9f9f9;
            --white: #ffffff;
        }

        body {
            margin: 0; padding: 0;
            font-family: 'Noto Sans JP', sans-serif;
            color: var(--text-color);
            line-height: 1.8;
            letter-spacing: 0.05em;
            background-color: var(--bg-color);
            overflow-x: hidden;
        }

        h1, h2, h3, h4 { font-family: 'Montserrat', sans-serif; margin: 0; }
        .jp-font { font-family: 'Noto Sans JP', sans-serif; }
        img { max-width: 100%; height: auto; display: block; }
        p { margin-bottom: 1.5rem; font-size: 0.95rem; }

        /* --- 2. レイアウト共通 (Layout) --- */
        .container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 10px;
        }

        section { padding: 30px 0; }

        .section-header { text-align: center; margin-bottom: 70px; }
        .section-header h2 { font-size: 3rem; margin-bottom: 10px; letter-spacing: 0.1em; color: var(--text-color); }
        .section-header p { font-size: 1.1rem; font-weight: 500; color: var(--accent-color); }

        /* アニメーション */
        .fade-in { opacity: 0; transform: translateY(30px); transition: all 0.8s ease-out; }
        .fade-in.visible { opacity: 1; transform: translateY(0); }

       
        @keyframes scroll-left {
            0% { transform: translateX(0); }
            100% { transform: translateX(-50%); } /* 10枚中5枚分動く */
        }

      


        /* --- 5. Performance Section --- */
       /* .performance-section { background: var(--section-bg); }*/

        /* バナー */
        .perf-banner {
            background: #f0c321/*linear-gradient(135deg, #333 0%, #555 100%)*/;
            color: white; 
            border-radius: 12px;
            padding:0 2% 2% 2%;
            text-align: center; 
            cursor: pointer; 
            transition: transform 0.3s,box-shadow 0.3s;
            position: relative; 
            overflow: hidden; 
            box-shadow: 0 10px 20px rgba(0,0,0,0.15);
        }
        .perf-banner:hover { transform: translateY(-3px); box-shadow: 0 15px 30px rgba(0,0,0,0.25); }
        /*.perf-banner::before {
            content: ''; position: absolute; top:0; left:0; width:100%; height:100%;
            background-image: url('https://www.showa-jutaku.co.jp/homenew/performance2/files/img/perf_img01.jpg');
            background-size: cover; background-position: center; opacity: 0.2; mix-blend-mode: overlay;
        }*/
        .banner-inner { position: relative; z-index: 2; }
.banner-inner .leftside{
    width:50%;
    display: inline-block;
    vertical-align: middle;
}
.banner-inner .rightside{
    width:49%;
    display: inline-block;
    vertical-align: middle;
}


        .banner-title { font-size: 3.5rem; letter-spacing: 0.1em; margin-bottom: 10px; color: var(--accent-color); }
        .banner-sub { font-size: 1.2rem; opacity: 1; margin: 0; letter-spacing: 0.05em; text-shadow: 0 2px 10px rgba(0,0,0,0.5);}
        .banner-catch { font-size: 1.5rem; font-weight: 700; margin-bottom: 2%; text-shadow: 0 2px 10px rgba(0,0,0,0.5); }
        
        .banner-toggle {
            display: inline-flex;      /* ← inline-block から変更 */
  align-items: center;
  justify-content: center;
  gap: 8px;  
            border: 1px solid rgba(255,255,255,0.4);
            padding: 10px 30px;
            background: rgba(0,0,0,0.3);
            transition: background 0.3s;
        }
        .perf-banner:hover .banner-toggle { background: var(--accent-color); border-color: var(--accent-color); }
        .toggle-icon {
            display:inline-block;
            margin-top: 0;
            font-size: 1.2rem;
            transition: transform 0.4s;
            line-height: 1;
}
        
        /* 開閉動作 */
        .perf-banner.is-open .toggle-icon { transform: rotate(180deg); }
        .perf-banner.is-open .toggle-text::after { content: "×"; }
        .perf-content {
            max-height: 0; overflow: hidden; transition: max-height 0.8s ease-in-out; opacity: 0;
        }
        .perf-content.open { opacity: 1; }
        .perf-content-inner { 
            padding: 4% 1% 5% 1%;
            background: repeating-linear-gradient(-45deg, #fffaf0, #fffaf0 20px, #fff5e0 20px, #fff5e0 40px);
}
        
       
        /* 画像ボックスエリア */
.course_title{
    width: 100%;
    margin: 2% 0 4% 0;
    border-top:thin solid #4c4c4c;
    border-bottom:thin solid #4c4c4c;
    background: rgba(255, 255, 255, 0.6); /* 真っ白から少し透けた白に変更 */
}
.course_title .bobox01{
    width: 100%;
    padding:1% 2% 1% 2%;
}
.course_title .bobox01 .eg01{
    color: rgb(142 112 38 / var(--tw-text-opacity, 1));
    font-size: 160%;
    text-align: center;
    font-family: "Great Vibes", cursive;
}
.course_title .bobox01 .subtitle01{
    font-size: 200%;
    text-align: center;
    font-weight: 600;
    color:red;
    margin:0 0 1% 0;
}
.course_title .bobox01 .sub_text01{
    font-size: 100%;
    text-align: center;
    line-height: 1.6;
}
        
.course_origin{
    margin: 2% 0 3% 0;
    display: flex;           /* ★Flexboxを適用 */
    justify-content: center; /* 中央寄せ */
    align-items: stretch;    /* ★子要素の高さを揃える */
    gap: 3%;
}

.course01{
    width: 31%;
    display: flex;           /* ★内部もFlexにして中身を縦に並べる */
    flex-direction: column;  /* 縦並び */
    background-image: linear-gradient(to bottom, #fef2f2, #fff);/* 背景：上から下へ #fef2f2 から #fff へのグラデーション */
    border-radius: 1rem;
    border: 8px solid #fff;
    padding: 2% 1% 2% 1%;
    vertical-align: top; /* 横並び時のズレ防止に追加 */
    box-shadow: 2px 2px 5px #4c4c4c;
    box-sizing: border-box;  /* パディングを含めたサイズ計算 */
    position: relative;
}
.course01 .select{
    text-align: center;
    font-size: 120%;
    color: rgb(255 154 158);
    font-weight: 600;
    letter-spacing: 0.3rem;
}
.course01 .mei{
    text-align: center;
    font-size: 140%;
    margin: 1% 0 2% 0;
    font-weight: 500;
}
.course01 .naiyo{
    width: 100%;
    margin: 1% 0 1% 0;
    flex-grow: 1;
}
.course01 .naiyo h1{
    font-size: 110%;
    text-align: center;
    margin: 2% 0 2.5% 0;
    font-weight: 400;
}
.course01 .naiyo p{
    font-size: 90%;
    line-height:1.3;
    margin-bottom: 0;
}
.course01 .img70manyen{
    position: absolute;
    top: -6%;
    left: -3%;
    width: 40%;
    /*transform: rotate(-15deg);*/
}

.course02{
    width: 31%;
    display: flex;           /* ★内部もFlexにして中身を縦に並べる */
    flex-direction: column;  /* 縦並び */
    background-image: linear-gradient(to bottom, #fff7ed, #fff);/* 背景：上から下へ #fef2f2 から #fff へのグラデーション */
    border-radius: 1rem;
    border: 8px solid #fff;
    padding: 2% 1% 2% 1%;
    vertical-align: top; /* 横並び時のズレ防止に追加 */
    box-shadow: 2px 2px 5px #4c4c4c;
    box-sizing: border-box;  /* パディングを含めたサイズ計算 */
    position: relative;
}
.course02 .select{
    text-align: center;
    font-size: 120%;
    color: rgb(249 115 22 / var(--tw-text-opacity, 1));
    font-weight: 600;
    letter-spacing: 0.3rem;
}
.course02 .mei{
    text-align: center;
    font-size: 140%;
    margin: 1% 0 2% 0;
    font-weight: 500;
}
.course02 .naiyo{
    width: 100%;
    margin: 1% 0 1% 0;
    flex-grow: 1;
}
.course02 .naiyo h1{
    font-size: 110%;
    text-align: center;
    margin: 2% 0 2.5% 0;
    font-weight: 400;
}
.course02 .naiyo p{
    font-size: 90%;
    line-height:1.3;
     margin-bottom: 0;
}
.course02 .img70manyen{
    position: absolute;
    top: -6%;
    left: -3%;
    width: 40%;
    /*transform: rotate(-15deg);*/
}

.course03{
    width: 31%;
    display: flex;           /* ★内部もFlexにして中身を縦に並べる */
    flex-direction: column;  /* 縦並び */
    background-image: linear-gradient(to bottom, #ecfeff, #fff);/* 背景：上から下へ #fef2f2 から #fff へのグラデーション */
    border-radius: 1rem;
    border: 8px solid #fff;
    padding: 2% 1% 2% 1%;
    vertical-align: top; /* 横並び時のズレ防止に追加 */
    box-shadow: 2px 2px 5px #4c4c4c;
    box-sizing: border-box;  /* パディングを含めたサイズ計算 */
    position: relative;
}
.course03 .select{
    text-align: center;
    font-size: 120%;
    color: rgb(6 182 212 / var(--tw-text-opacity, 1));
    font-weight: 600;
    letter-spacing: 0.3rem;
}
.course03 .mei{
    text-align: center;
    font-size: 140%;
    margin: 1% 0 2% 0;
    font-weight: 500;
}
.course03 .naiyo{
    width: 100%;
    margin: 1% 0 1% 0;
    flex-grow: 1;
}
.course03 .naiyo h1{
    font-size: 110%;
    text-align: center;
    margin: 2% 0 2.5% 0;
    font-weight: 400;
}
.course03 .naiyo p{
    font-size: 90%;
    line-height:1.3;
     margin-bottom: 0;
}
.course03 .img70manyen{
    position: absolute;
    top: -6%;
    left: -3%;
    width: 40%;
    /*transform: rotate(-15deg);*/
}


.course01,
.course02,
.course03 {
  transition: transform 0.3s ease-in-out;
}

.course01:hover,
.course02:hover,
.course03:hover {
  transform: translateY(-10px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}
      
   

     



     


        /* =================================================================
           ▼▼▼ ここから下がスマホ専用設定 (max-width: 768px) ▼▼▼
           ================================================================= */
       /* =================================================================
           ▼▼▼ スマホ専用設定 (max-width: 768px) 完全修正版 ▼▼▼
           ================================================================= */
        @media (max-width: 768px) {
            
            /* --- 1. Hero Section (スライダー) --- */
        
            .hero-copy { line-height: 1.8; font-size: 1rem; }
            .sp-br { display: block; }
            .hero h1 { font-size: 2.5rem; }
            .hero p { font-size: 1rem; }
            .design-text p { font-size:1.0rem; margin-bottom: 10px; line-height: 1.8; font-weight: 300; text-align: center; }
            .design-grid { align-items: center; margin:1.5% 3%; }
            
            
.banner-inner .leftside{
    width:100%;
    display: inline-block;
    vertical-align: middle;
}
.banner-inner .rightside{
    width:100%;
    display: inline-block;
    vertical-align: middle;
}
            
            /* --- 2. Performance & Charts --- */
            .banner-title { font-size: 2.0rem; }
            .banner-sub { font-size: 1.0rem; }
            .banner-catch { font-size: 1.6rem; line-height: 1.5;}
            .charts-grid { grid-template-columns: 1fr; gap: 30px; }
            .img-box { padding: 20px; }
             .perf-banner::before {
            background-image: url('https://www.showa-jutaku.co.jp/homenew/performance2/files/img/perf_img01_sp.jpg');
        }
       
        .banner-toggle { padding: 10px 10px;}
            
            
            
            
            /* --- 3. Features Section (ボタン→画像→テキスト) --- */
 .course_title{
    width: 100%;
    margin: 2% 0 8% 0;
}
 .course_title .bobox01{
    width: 100%;
    padding:2% 3% 2% 3%;
}
.course_title .bobox01 .eg01{
    font-size: 120%;
    text-align: center;
}
.course_title .bobox01 .subtitle01{
    font-size: 150%;
    text-align: center;
    margin:0 0 1% 0;
    line-height: 1.5;
}
.course_title .bobox01 .sub_text01{
    font-size: 90%;
    text-align: center;
    line-height: 1.6;
}

.course_origin{
    margin: 2% 0 3% 0;
    display: block;           /* ★Flexboxを適用 */
    /*justify-content: center;*/ /* 中央寄せ */
    align-items: stretch;    /* ★子要素の高さを揃える */
    /*gap: 3%;*/
}

.course01{
    width: 80%;
    display: flex;           /* ★内部もFlexにして中身を縦に並べる */
    flex-direction: column;  /* 縦並び */
    border-radius: 1rem;
    padding: 2% 1% 2% 1%;
    vertical-align: top; /* 横並び時のズレ防止に追加 */
    box-sizing: border-box;  /* パディングを含めたサイズ計算 */
    position: relative;
    margin: 6% 10% 6% 10% ;
}
.course01 .select{
    text-align: center;
    font-size: 120%;
    letter-spacing: 0.3rem;
}
.course01 .mei{
    text-align: center;
    font-size: 140%;
    margin: 1% 0 2% 0;
}
.course01 .naiyo{
    width: 100%;
    margin: 1% 0 1% 0;
    flex-grow: 1;
}
.course01 .naiyo h1{
    font-size: 110%;
    text-align: center;
    margin: 2% 0 2.5% 0;
}
.course01 .naiyo p{
    font-size: 90%;
    line-height:1.3;
}
.course01 .img70manyen{
    position: absolute;
    top: -5%;
    left: -15%;
    width: 40%;
    transform: rotate(-15deg);
}
.course02{
    width: 80%;
    display: flex;           /* ★内部もFlexにして中身を縦に並べる */
    flex-direction: column;  /* 縦並び */
    border-radius: 1rem;
    padding: 2% 1% 2% 1%;
    vertical-align: top; /* 横並び時のズレ防止に追加 */
    box-sizing: border-box;  /* パディングを含めたサイズ計算 */
    position: relative;
    margin: 6% 10% 6% 10% ;
}
.course02 .select{
    text-align: center;
    font-size: 120%;
    letter-spacing: 0.3rem;
}
.course02 .mei{
    text-align: center;
    font-size: 140%;
    margin: 1% 0 2% 0;
}
.course02 .naiyo{
    width: 100%;
    margin: 1% 0 1% 0;
    flex-grow: 1;
}
 .course02 .naiyo h1{
    font-size: 110%;
    text-align: center;
    margin: 2% 0 2.5% 0;
}
.course02 .naiyo p{
    font-size: 90%;
    line-height:1.3;
}
.course02 .img70manyen{
    position: absolute;
    top: -5%;
    left: -15%;
    width: 40%;
    transform: rotate(-15deg);
}
.course03{
    width:80%;
    display: flex;           /* ★内部もFlexにして中身を縦に並べる */
    flex-direction: column;  /* 縦並び */
    border-radius: 1rem;
    padding: 2% 1% 2% 1%;
    vertical-align: top; /* 横並び時のズレ防止に追加 */
    box-sizing: border-box;  /* パディングを含めたサイズ計算 */
    position: relative;
    margin: 6% 10% 6% 10% ;
}
.course03 .select{
    text-align: center;
    font-size: 120%;
    letter-spacing: 0.3rem;
}
.course03 .mei{
    text-align: center;
    font-size: 140%;
    margin: 1% 0 2% 0;
}
.course03 .naiyo{
    width: 100%;
    margin: 1% 0 1% 0;
    flex-grow: 1;
}
.course03 .naiyo h1{
    font-size: 110%;
    text-align: center;
    margin: 2% 0 2.5% 0;
}
.course03 .naiyo p{
    font-size: 90%;
    line-height:1.3;
}
.course03 .img70manyen{
    position: absolute;
    top: -5%;
    left: -15%;
    width: 40%;
    transform: rotate(-15deg);
}


.course01,
.course02,
.course03 {
  transition: transform 0.3s ease-in-out;
}

.course01:hover,
.course02:hover,
.course03:hover {
  transform: translateY(-10px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}    
 
     
            
            /* 矢印アイコン */
            .concept-arrow {
                align-self: center !important; /* 中央へ */
                width: 40px; height: 40px; font-size: 1.2rem;
                margin-top: 10px;
            }
            
            .unit-only { font-size: 1.2rem; }

            /* --- 6. CLOSEボタン (位置ずれ修正) --- */
            /* ボタンが入っている箱を強制的に中央揃え */
            .accordion-block-warranty .container > div:last-child {
                display: block !important;
                text-align: center !important;
                width: 100% !important;
                margin-top: 20px !important;
            }
            
            /* ボタン本体 */
            .close-btn-simple {
                display: inline-block !important;
                margin: 0 auto !important;
                width: 80% !important;
                max-width: 300px;
                background: #fff; /* 背景を白にして見やすく */
            }
     
            
            
}


        
       /* --- 改行調整用のクラス --- */
        
        /* PCでは改行しない（スマホでのみ改行される） */
        .sp-br {
            display: none;
        }

        /* PCでは改行する（スマホでは改行されない） */
        .pc-br {
            display: block;
        }

        /* スマホ表示のときの設定 */
        @media (max-width: 768px) {
            .sp-br { display: block; } /* スマホで改行有効化 */
            .pc-br { display: none; }  /* スマホで改行無効化 */
        }