/* ========================================
   固定サイドバー（両サイド白帯）
   ======================================== */
.fixed-logo {
    position: fixed;
    right: 0;
    top: 0;
    bottom: 0;
    width: 80px;
    background: var(--bg-white);
    border-left: 1px solid var(--border-color);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: -2px 0 10px var(--shadow-light);
}

.logo-image {
    width: auto;
    height: 45px;
    max-width: none;
    max-height: none;
    object-fit: contain;
    transform: rotate(90deg);
    transform-origin: center center;
}

.logo-text {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-size: 1.2rem;
    font-weight: 300;
    letter-spacing: 0.4em;
    color: var(--text-dark);
}

/* 左サイドの白帯 */
body::before {
    content: '';
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 80px;
    background: var(--bg-white);
    border-right: 1px solid var(--border-color);
    z-index: 999;
    box-shadow: 2px 0 10px var(--shadow-light);
}

/* ========================================
   リセット＆ベース設定
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* カラースキーム（青〜水色のグラデーション） */
    --primary-color: #4a7c9e; /* ディープブルー */
    --primary-dark: #3a6280;
    --secondary-color: #ffffff; /* 純白 */
    --accent-color: #5b9fbe; /* 明るい水色 */
    --text-dark: #333333;
    --text-light: #666666;
    --text-white: #ffffff;
    --bg-light: #f8fafb;
    --bg-white: #ffffff;
    --border-color: #e8eef2;
    --success-color: #7cb342;
    --shadow-light: rgba(74, 124, 158, 0.08);
    --shadow-medium: rgba(74, 124, 158, 0.15);
    --shadow-strong: rgba(74, 124, 158, 0.25);
    --gradient-blue: linear-gradient(135deg, #3d6b8a 0%, #5b9fbe 100%);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

/* コンテンツ全体を中央に配置（サイドバー分のパディング） */
body {
    font-family: 'Noto Sans JP', 'Helvetica Neue', Arial, sans-serif;
    font-weight: 300;
    color: var(--text-dark);
    line-height: 1.8;
    background-color: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    letter-spacing: 0.05em;
    padding-left: 80px;
    padding-right: 80px;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

/* ========================================
   コンテナ＆レイアウト
   ======================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.sp-only {
    display: none;
}

.pc-only {
    display: inline;
}

/* ========================================
   タイポグラフィ
   ======================================== */
.section-title {
    font-family: 'Noto Sans JP', 'Helvetica Neue', Arial, sans-serif;
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 400;
    text-align: center;
    margin-bottom: 3rem;
    line-height: 1.5;
    color: var(--text-dark);
    letter-spacing: 0.08em;
}

.lead-text {
    font-size: clamp(1.1rem, 2.5vw, 1.3rem);
    line-height: 2;
    margin-bottom: 2rem;
}

.highlight {
    background: linear-gradient(transparent 60%, rgba(255, 255, 255, 0.3) 60%);
    padding: 0 4px;
    font-weight: 500;
}

.highlight-bold {
    color: var(--primary-color);
    font-weight: 500;
}

.highlight-emphasis {
    color: #ff6b6b;
    font-weight: 500;
    text-shadow: 0 0 20px rgba(255, 107, 107, 0.3);
    display: inline-block;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* ========================================
   限定バナー
   ======================================== */
.urgency-banner {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
    text-align: center;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    z-index: 10;
    box-shadow: 0 4px 15px rgba(220, 38, 38, 0.4);
    animation: slideDown 0.5s ease-out;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

.urgency-banner-small {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
    text-align: center;
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    margin: 1.5rem auto;
    max-width: 400px;
    box-shadow: 0 4px 15px rgba(220, 38, 38, 0.3);
    animation: pulse 2s ease-in-out infinite;
}

.emphasis-text {
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    text-align: center;
    line-height: 2;
    font-weight: 500;
}

/* ========================================
   ① ファーストビュー（Hero Section）
   ======================================== */

/* スマホ専用CTA（PC版では非表示） */
.sp-only-cta {
    display: none;
}

.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    max-height: 900px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: url('../images/modern-living-room-new.jpg') center/cover no-repeat;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(61, 107, 138, 0.75) 0%, rgba(91, 159, 190, 0.65) 100%);
    pointer-events: none;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 800"><path d="M0,400 Q300,300 600,400 T1200,400 L1200,800 L0,800 Z" fill="rgba(255,255,255,0.3)"/></svg>') no-repeat bottom center;
    background-size: cover;
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 2rem;
    animation: fadeInUp 1s ease;
}

/* 読了時間バッジ */
.reading-time-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.9);
    color: #4a7c9e;
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    margin-bottom: 2rem;
    animation: fadeInDown 0.8s ease;
}

.reading-time-badge i {
    margin-right: 0.5rem;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title {
    font-family: 'Noto Sans JP', 'Helvetica Neue', Arial, sans-serif;
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 400;
    line-height: 1.4;
    margin-bottom: 1.5rem;
    color: var(--text-white);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    letter-spacing: 0.08em;
}

.hero-subtitle-accent {
    display: block;
    font-size: clamp(1.8rem, 4vw, 3rem);
    font-weight: 700;
    color: #fbbf24;
    margin-top: 0.5rem;
    text-shadow: 0 3px 10px rgba(251, 191, 36, 0.5);
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    line-height: 1.9;
    margin-bottom: 2.5rem;
    color: var(--text-white);
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.hero-subtitle strong {
    font-weight: 700;
    font-size: 1.1em;
}

.hero-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2.5rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 1rem;
    color: var(--text-white);
    background: rgba(255, 255, 255, 0.15);
    padding: 1rem 1.5rem;
    border-radius: 50px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.feature-item i {
    color: var(--text-white);
    font-size: 1.2rem;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-light);
    font-size: 0.875rem;
    animation: bounce 2s infinite;
}

.scroll-indicator i {
    font-size: 1.2rem;
}

/* ========================================
   CTAボタン
   ======================================== */
.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1.2rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 400;
    border-radius: 50px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--shadow-medium);
    cursor: pointer;
    border: none;
    letter-spacing: 0.08em;
}

.primary-cta {
    background: var(--gradient-blue);
    color: var(--text-white);
}

.primary-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--shadow-strong);
}

.secondary-cta {
    background: var(--bg-white);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.secondary-cta:hover {
    background: var(--primary-color);
    color: var(--text-white);
}

.large-cta {
    padding: 1.5rem 3rem;
    font-size: 1.3rem;
    background: var(--gradient-blue);
    color: var(--text-white);
}

.large-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px var(--shadow-strong);
}

/* ========================================
   ② 共感セクション
   ======================================== */
.empathy-section {
    padding: 5rem 0;
    background: var(--bg-white);
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.problem-card {
    background: var(--bg-light);
    padding: 2.5rem 1.5rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.problem-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 8px 20px var(--shadow-medium);
}

.problem-icon {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
}

.problem-card h3 {
    font-size: 1.2rem;
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-dark);
    letter-spacing: 0.05em;
}

.empathy-message {
    background: linear-gradient(135deg, #e8f4f8 0%, #d4e9f2 100%);
    padding: 3rem 2rem;
    border-radius: 15px;
    border-left: 5px solid var(--primary-color);
}

/* ギャラリー画像 */
.section-image-gallery {
    margin-top: 3rem;
    text-align: center;
}

.gallery-image {
    width: 100%;
    max-width: 900px;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 8px 30px var(--shadow-medium);
    transition: transform 0.3s ease;
    margin: 0 auto;
    display: block;
}

.gallery-image:hover {
    transform: scale(1.02);
    box-shadow: 0 12px 40px var(--shadow-strong);
}

/* ========================================
   ③ 解決策セクション
   ======================================== */
.solution-section {
    padding: 5rem 0;
    background: var(--bg-light);
}

.solution-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.solution-list {
    list-style: none;
    margin: 2rem 0;
}

.solution-list li {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--bg-white);
    border-radius: 12px;
    box-shadow: 0 2px 10px var(--shadow-light);
}

.solution-list i {
    font-size: 2rem;
    color: var(--primary-color);
    flex-shrink: 0;
}

.solution-list strong {
    display: block;
    font-size: 1.1rem;
    font-weight: 400;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
    letter-spacing: 0.05em;
}

.solution-list p {
    font-size: 0.95rem;
    color: var(--text-light);
}

.solution-summary {
    font-size: 1.2rem;
    font-weight: 600;
    text-align: center;
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--bg-white);
    border-radius: 12px;
}

.solution-image {
    position: relative;
}

.image-placeholder {
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, #e8dfd5 0%, #d4ccc3 100%);
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    color: var(--text-light);
    box-shadow: 0 4px 20px var(--shadow-medium);
}

.image-placeholder i {
    font-size: 4rem;
    opacity: 0.5;
}

.image-placeholder p {
    font-size: 1rem;
}

/* ========================================
   ④ 無料サービスセクション
   ======================================== */
.free-service-section {
    padding: 5rem 0;
    background: var(--bg-white);
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.service-card {
    position: relative;
    background: var(--bg-light);
    padding: 2.5rem 2rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-blue);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px var(--shadow-medium);
}

.service-number {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 2.5rem;
    font-weight: 700;
    color: rgba(74, 124, 158, 0.1);
    font-family: 'Noto Sans JP', sans-serif;
}

.service-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.2rem;
    font-weight: 400;
    margin-bottom: 1rem;
    line-height: 1.6;
    letter-spacing: 0.05em;
}

.service-card .small-text {
    font-size: 0.9rem;
    font-weight: 400;
}

.service-card p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.7;
}

.service-note {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-dark);
    font-weight: 500;
    margin-bottom: 2rem;
}

.service-note i {
    color: var(--primary-color);
    margin-right: 0.5rem;
}

.cta-wrapper {
    text-align: center;
}

/* ========================================
   ⑤ なぜ無料？セクション
   ======================================== */
.why-free-section {
    padding: 5rem 0;
    background: var(--bg-light);
}

.why-free-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.why-free-box {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2.5rem;
    padding: 2rem;
    background: var(--bg-white);
    border-radius: 15px;
    box-shadow: 0 4px 15px var(--shadow-medium);
}

.why-free-box i {
    font-size: 2rem;
    color: var(--primary-color);
}

.why-free-box p {
    text-align: left;
    font-size: 1.1rem;
    line-height: 1.8;
    margin: 0;
}

/* シンプルな「なぜ無料？」スタイル */
.why-free-simple {
    max-width: 700px;
    margin: 0 auto;
}

.why-free-main {
    font-size: 1.3rem;
    font-weight: 500;
    line-height: 1.8;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.why-free-main .highlight-bold {
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.4rem;
}

.why-free-sub {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 2.5rem;
}

.why-free-result {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 1.5rem 2rem;
    background: var(--bg-white);
    border-radius: 12px;
    border-left: 4px solid var(--success-color);
    box-shadow: 0 4px 15px var(--shadow-light);
}

.why-free-result i {
    font-size: 1.5rem;
    color: var(--success-color);
    flex-shrink: 0;
}

.why-free-result span {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-dark);
    text-align: left;
}

.why-free-result strong {
    color: var(--primary-color);
    font-weight: 700;
}

/* ========================================
   ⑥ プロセスセクション
   ======================================== */
.process-section {
    padding: 5rem 0;
    background: var(--bg-white);
}

.process-flow {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    gap: 2rem;
    align-items: center;
    margin-bottom: 3rem;
}

.process-step {
    background: var(--bg-light);
    padding: 2.5rem 2rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
}

.process-step:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px var(--shadow-medium);
}

.step-number {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: var(--gradient-blue);
    color: var(--text-white);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 400;
    margin-bottom: 1.5rem;
    letter-spacing: 0.1em;
}

.step-icon {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
}

.process-step h3 {
    font-size: 1.2rem;
    font-weight: 400;
    margin-bottom: 1rem;
    letter-spacing: 0.05em;
}

.process-step p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.7;
}

.process-arrow {
    font-size: 2rem;
    color: var(--primary-color);
}

/* シンプルなプロセスリスト */
.simple-process-list {
    max-width: 600px;
    margin: 0 auto 3rem;
}

.simple-step {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 1.5rem;
    margin-bottom: 1rem;
    background: var(--bg-light);
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
    transition: all 0.3s ease;
}

.simple-step:hover {
    transform: translateX(5px);
    box-shadow: 0 4px 12px var(--shadow-light);
}

.step-number-simple {
    display: inline-block;
    background: var(--primary-color);
    color: var(--text-white);
    font-size: 0.85rem;
    font-weight: 700;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    white-space: nowrap;
    flex-shrink: 0;
}

.step-text {
    flex: 1;
}

.step-text strong {
    display: block;
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 0.3rem;
}

.step-text p {
    font-size: 0.95rem;
    color: var(--text-light);
    margin: 0;
    line-height: 1.6;
}

.process-result {
    text-align: center;
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-dark);
}

.process-result i {
    color: var(--success-color);
    margin-right: 0.5rem;
}

/* ========================================
   ⑥ お客様の声セクション
   ======================================== */
.testimonials-section {
    padding: 5rem 0;
    background: var(--bg-white);
    overflow: hidden;
}

.testimonials-carousel {
    position: relative;
    max-width: 100%;
    margin: 0 auto;
    overflow: hidden;
}

.testimonial-track {
    display: flex;
    gap: 2rem;
    animation: scroll 30s linear infinite;
}

.testimonial-track:hover {
    animation-play-state: paused;
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-100% - 2rem));
    }
}

.testimonial-card {
    flex: 0 0 400px;
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 4px 20px var(--shadow-light);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px var(--shadow-medium);
}

.testimonial-stars {
    color: #fbbf24;
    font-size: 1.2rem;
    margin-bottom: 1rem;
    letter-spacing: 0.2em;
}

.testimonial-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.testimonial-text {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.testimonial-author {
    font-size: 0.9rem;
    color: var(--text-light);
    font-weight: 500;
    text-align: right;
}

/* ========================================
   ⑦ FAQセクション
   ======================================== */
.faq-section {
    padding: 5rem 0;
    background: var(--bg-light);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-white);
    margin-bottom: 1.5rem;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 10px var(--shadow-light);
    transition: all 0.3s ease;
}

.faq-item:hover {
    box-shadow: 0 4px 15px var(--shadow-medium);
}

.faq-question {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem 2rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: var(--bg-light);
}

.faq-question i:first-child {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.faq-question h3 {
    flex: 1;
    font-size: 1.1rem;
    font-weight: 400;
    letter-spacing: 0.05em;
}

.faq-toggle {
    color: var(--text-light);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 2rem 1.5rem 4.5rem;
}

.faq-answer p {
    color: var(--text-light);
    line-height: 1.8;
}

/* ========================================
   ⑧ 最終CTAセクション
   ======================================== */
.final-cta-section {
    padding: 6rem 0;
    background: var(--gradient-blue);
    text-align: center;
}

.final-cta-title {
    font-family: 'Noto Sans JP', 'Helvetica Neue', Arial, sans-serif;
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 400;
    color: var(--text-white);
    margin-bottom: 2.5rem;
    line-height: 1.6;
    letter-spacing: 0.08em;
}

.final-cta-section .cta-button {
    background: var(--bg-white);
    color: var(--primary-color);
}

.final-cta-section .cta-button:hover {
    background: var(--text-white);
    transform: translateY(-3px) scale(1.05);
}

/* ========================================
   お問い合わせフォーム → LINE追加セクション
   ======================================== */
.contact-section {
    padding: 5rem 0;
    background: var(--bg-light);
}

.contact-intro {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 3rem;
}

.line-add-container {
    max-width: 600px;
    margin: 0 auto;
}

.line-add-card {
    background: var(--bg-white);
    padding: 2rem 2.5rem;
    border-radius: 20px;
    box-shadow: 0 4px 20px var(--shadow-medium);
    text-align: center;
}

/* 特典ボックス */
.special-offer-box {
    background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%);
    border: 3px solid #fb923c;
    border-radius: 20px;
    padding: 2rem;
    margin-top: 3rem;
    margin-bottom: 0;
    text-align: center;
    position: relative;
    box-shadow: 0 8px 30px rgba(251, 146, 60, 0.2);
}

.offer-badge {
    display: inline-block;
    background: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
    box-shadow: 0 4px 15px rgba(249, 115, 22, 0.3);
}

.offer-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: #7c2d12;
    line-height: 1.6;
    margin-bottom: 0.8rem;
    letter-spacing: 0.05em;
}

.offer-amount {
    font-size: 2rem;
    color: #ea580c;
    font-weight: 700;
    display: inline-block;
    margin: 0 0.3rem;
    text-shadow: 2px 2px 4px rgba(234, 88, 12, 0.1);
}

.offer-note {
    font-size: 0.9rem;
    color: #78716c;
    margin-top: 1rem;
    margin-bottom: 0;
}

.line-add-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    width: 100%;
    max-width: 400px;
    padding: 1.5rem 2rem;
    font-size: 1.3rem;
    font-weight: 400;
    background: linear-gradient(135deg, #06C755 0%, #00B900 100%);
    color: var(--text-white);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(6, 199, 85, 0.3);
    text-decoration: none;
    letter-spacing: 0.08em;
    margin-bottom: 2rem;
}

.line-add-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(6, 199, 85, 0.4);
}

.line-add-button i {
    font-size: 1.5rem;
}

.line-title {
    font-size: 1.8rem;
    font-weight: 400;
    margin-bottom: 1rem;
    color: var(--text-dark);
    letter-spacing: 0.05em;
}

.line-description {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.line-features {
    list-style: none;
    padding: 0;
    margin: 2rem 0;
    text-align: left;
}

.line-features li {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem;
    margin-bottom: 0.8rem;
    background: var(--bg-light);
    border-radius: 10px;
    font-size: 0.95rem;
    color: var(--text-dark);
}

.line-features i {
    color: #06C755;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.line-note {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: 1rem;
}

.line-note i {
    color: var(--primary-color);
    margin-right: 0.3rem;
}

/* ========================================
   フッター
   ======================================== */
.footer {
    background: linear-gradient(180deg, 
        #4a7c9e 0%, 
        #e8f4f8 50%, 
        #e8f4f8 100%);
    color: var(--text-white);
    padding: 3rem 0 0;
    text-align: center;
    position: relative;
    z-index: 1000;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #4a7c9e 0%, #5b9fbe 50%, #4a7c9e 100%);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    gap: 3rem;
}

.footer-logo {
    flex-shrink: 0;
}

.footer-logo-image {
    width: 200px;
    height: auto;
}

.footer-info-wrapper {
    text-align: left;
    flex: 1;
}

.footer-company {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.footer-info {
    font-size: 0.95rem;
    line-height: 1.8;
    color: rgba(42, 42, 42, 0.8);
}

.footer-copyright {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.9);
    padding: 1.5rem 0;
    margin: 1.5rem 0 0 0;
    border-top: 1px solid rgba(255, 255, 255, 0.3);
    background: #4a7c9e;
    position: relative;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
    width: 100vw;
}

/* ========================================
   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;
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* ========================================
   レスポンシブデザイン（スマホファースト）
   ======================================== */
@media (max-width: 768px) {
    .sp-only {
        display: inline;
    }

    .pc-only {
        display: none;
    }

    /* スマホでも右側の帯は表示（幅は狭く） */
    .fixed-logo {
        width: 35px;
    }

    .logo-image {
        width: auto;
        height: 20px;
        max-width: none;
        transform: rotate(90deg);
    }

    .logo-text {
        font-size: 0.9rem;
        letter-spacing: 0.25em;
    }

    /* 左サイドの白帯は非表示 */
    body::before {
        display: none;
    }

    body {
        padding-left: 0;
        padding-right: 35px;
    }

    .hero-content {
        padding-right: 0;
        padding-left: 0;
    }

    /* スマホ版読了バッジ */
    .reading-time-badge {
        font-size: 0.8rem;
        padding: 0.5rem 1rem;
        margin-bottom: 1.5rem;
    }

    /* スマホ版ヒーロータイトル */
    .hero-subtitle-accent {
        font-size: clamp(1.5rem, 5vw, 2rem);
        margin-top: 0.3rem;
    }

    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 2rem;
    }

    /* スマホ用限定バナー */
    .urgency-banner {
        font-size: 0.9rem;
        padding: 0.8rem 1rem;
        letter-spacing: 0.05em;
    }

    .urgency-banner-small {
        font-size: 0.85rem;
        padding: 0.6rem 1rem;
        margin: 1rem auto;
        max-width: 90%;
    }

    .container {
        padding: 0 0.5rem;
        margin-right: 0;
        max-width: calc(100vw - 35px);
    }

    .problems-grid,
    .service-grid,
    .process-flow,
    .faq-list {
        padding: 0 0.5rem;
    }

    section {
        padding-left: 0;
        padding-right: 0;
    }

    /* CTAボタンを中央揃え */
    .cta-wrapper,
    .hero-content,
    .final-cta-section .container {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .hero {
        min-height: 500px;
        max-height: 700px;
    }

    .hero-title {
        font-size: 1.6rem;
        line-height: 1.5;
        word-break: keep-all;
        overflow-wrap: break-word;
    }

    .hero-subtitle {
        font-size: 0.95rem;
        line-height: 1.8;
        margin-bottom: 2rem;
    }

    .hero-features {
        gap: 0.8rem;
    }

    .feature-item {
        font-size: 0.85rem;
        padding: 0.8rem 1rem;
        gap: 0.6rem;
    }

    .feature-item i {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.5rem;
        margin-bottom: 2rem;
        line-height: 1.6;
    }

    .problems-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        max-width: 100%;
    }

    .problem-card {
        padding: 1.2rem 1rem;
        display: flex;
        align-items: center;
        gap: 1rem;
        text-align: left;
        margin: 0 auto;
        width: calc(100% - 1rem);
        max-width: calc(100vw - 35px - 2rem);
        box-sizing: border-box;
    }

    .problem-icon {
        font-size: 2rem;
        margin-bottom: 0;
        flex-shrink: 0;
    }

    .problem-card h3 {
        font-size: 0.95rem;
        margin: 0;
    }

    .solution-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .solution-image {
        order: -1;
        padding: 0;
        max-width: calc(100vw - 35px - 1rem);
        margin: 0 auto;
    }

    .solution-image img {
        max-width: 100%;
        margin: 0 auto;
        display: block;
    }

    .solution-list li {
        padding: 1.2rem 1rem;
        gap: 1rem;
        margin: 0 auto 1rem auto;
        max-width: calc(100vw - 35px - 2rem);
    }

    .solution-list i {
        font-size: 1.5rem;
    }

    .solution-list strong {
        font-size: 1rem;
    }

    .solution-list p {
        font-size: 0.9rem;
    }

    .solution-summary {
        font-size: 1rem;
        padding: 1.2rem 1rem;
        max-width: calc(100vw - 35px - 2rem);
        margin: 1rem auto 0 auto;
    }

    .section-image-gallery {
        padding: 0;
        margin-top: 2rem;
        max-width: calc(100vw - 35px - 1rem);
        margin-left: auto;
        margin-right: auto;
    }

    .gallery-image {
        max-width: 100%;
        margin: 0 auto;
        display: block;
    }

    .solution-summary {
        font-size: 1.1rem;
        word-break: keep-all;
        overflow-wrap: break-word;
    }

    .service-grid {
        grid-template-columns: 1fr;
        max-width: 100%;
    }

    .service-card {
        padding: 2rem 1rem;
        margin: 0 auto;
        width: calc(100% - 1rem);
        max-width: calc(100vw - 35px - 2rem);
        box-sizing: border-box;
    }

    .service-card-02 {
        padding: 2rem 1rem;
        width: 100%;
    }

    .service-card h3 {
        font-size: 1.05rem;
    }

    /* なぜ無料？ - スマホ版 */
    .why-free-simple {
        max-width: calc(100vw - 35px - 2rem);
        padding: 0 0.5rem;
    }

    .why-free-main {
        font-size: 1.1rem;
        margin-bottom: 1.5rem;
    }

    .why-free-main .highlight-bold {
        font-size: 1.2rem;
    }

    .why-free-sub {
        font-size: 1rem;
        margin-bottom: 2rem;
    }

    .why-free-result {
        flex-direction: column;
        text-align: center;
        padding: 1.2rem 1rem;
        gap: 0.8rem;
    }

    .why-free-result i {
        font-size: 1.3rem;
    }

    .why-free-result span {
        font-size: 1rem;
        text-align: center;
    }

    .process-flow {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        max-width: 100%;
    }

    .process-arrow {
        display: none;
    }

    .process-step {
        padding: 2rem 1rem;
        margin: 0 auto;
        max-width: calc(100vw - 35px - 2rem);
    }

    /* シンプルプロセス - スマホ */
    .simple-process-list {
        max-width: calc(100vw - 35px - 1rem);
        margin: 0 auto 2rem;
    }

    .simple-step {
        gap: 1rem;
        padding: 1.2rem;
        margin-bottom: 0.8rem;
    }

    .step-number-simple {
        font-size: 0.75rem;
        padding: 0.3rem 0.6rem;
    }

    .step-text strong {
        font-size: 1rem;
    }

    .step-text p {
        font-size: 0.85rem;
    }

    /* お客様の声 - スマホ */
    .testimonial-card {
        flex: 0 0 300px;
        padding: 1.5rem;
    }

    .testimonial-stars {
        font-size: 1rem;
    }

    .testimonial-title {
        font-size: 1rem;
    }

    .testimonial-text {
        font-size: 0.9rem;
    }

    .testimonial-author {
        font-size: 0.85rem;
    }

    .faq-question {
        padding: 1.2rem 1rem;
    }

    .faq-question h3 {
        font-size: 1rem;
    }

    .faq-item.active .faq-answer {
        padding: 0 1rem 1.2rem 3rem;
    }

    .faq-item {
        margin: 0 auto 1.5rem auto;
        max-width: calc(100vw - 35px - 2rem);
    }

    .cta-button {
        padding: 1rem 1.5rem;
        font-size: 0.95rem;
        width: 90%;
        max-width: 350px;
        justify-content: center;
        margin: 0 auto;
    }

    .large-cta {
        padding: 1.2rem 1.8rem;
        font-size: 1rem;
        width: 90%;
        max-width: 350px;
        margin: 0 auto;
    }

    /* スマホ専用CTA表示 */
    .sp-only-cta {
        display: block;
        text-align: center;
        margin: 2.5rem auto 0;
        padding: 0 0.5rem;
    }

    .mobile-cta {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 0.5rem;
        width: 90%;
        max-width: 350px;
        padding: 1.2rem 1.5rem;
        font-size: 1rem;
        font-weight: 700;
        background: linear-gradient(135deg, #4a7c9e 0%, #5b9fbe 100%);
        color: white;
        border: none;
        border-radius: 50px;
        box-shadow: 0 4px 15px rgba(74, 124, 158, 0.3);
        transition: all 0.3s ease;
        animation: pulse 2s ease-in-out infinite;
    }

    .mobile-cta:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 20px rgba(74, 124, 158, 0.4);
    }

    .mobile-cta i {
        font-size: 1rem;
    }


    .final-cta-title {
        font-size: 1.5rem;
        line-height: 1.7;
    }

    .empathy-message {
        padding: 2rem 1rem;
        margin: 0 auto;
        max-width: calc(100vw - 35px - 2rem);
    }

    .emphasis-text {
        font-size: 1rem;
        line-height: 1.8;
    }

    .why-free-box {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
        margin: 1.5rem auto;
        max-width: calc(100vw - 35px - 2rem);
    }

    .why-free-box p {
        text-align: center;
        font-size: 1rem;
    }

    .line-add-card {
        padding: 1.5rem 1rem;
        margin: 0 auto;
        max-width: calc(100vw - 35px - 2rem);
    }

    /* スマホ用特典ボックス */
    .special-offer-box {
        padding: 1.5rem 1rem;
        margin-top: 2rem;
        margin-bottom: 0;
    }

    .offer-badge {
        font-size: 0.85rem;
        padding: 0.4rem 1.2rem;
    }

    .offer-title {
        font-size: 1.1rem;
    }

    .offer-amount {
        font-size: 1.6rem;
    }

    .offer-note {
        font-size: 0.8rem;
    }

    .line-add-button {
        font-size: 1rem;
        padding: 1.2rem 1.5rem;
        margin-bottom: 1.5rem;
        width: 90%;
        max-width: 300px;
        margin-left: auto;
        margin-right: auto;
    }

    .line-title {
        font-size: 1.4rem;
    }

    .line-description {
        font-size: 1rem;
    }

    .line-features {
        text-align: left;
    }

    .line-features li {
        font-size: 0.9rem;
        padding: 0.8rem;
    }

    .line-add-button {
        font-size: 1rem;
        padding: 1.2rem 1.5rem;
    }

    .container {
        padding: 0 1rem 0 0.8rem;
    }

    .lead-text {
        font-size: 0.95rem;
    }

    .lead-text .highlight-bold {
        display: inline;
        font-size: 0.95rem;
    }

    .why-free-content {
        max-width: 100%;
        padding: 0 0.5rem;
    }

    .scroll-indicator {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.4rem;
        line-height: 1.5;
    }

    .hero-subtitle {
        font-size: 0.9rem;
    }

    .feature-item {
        font-size: 0.8rem;
        padding: 0.7rem 0.9rem;
    }

    .section-title {
        font-size: 1.3rem;
        line-height: 1.6;
    }

    .solution-summary {
        font-size: 0.95rem;
    }

    .problem-card h3 {
        font-size: 0.9rem;
    }

    .service-card h3 {
        font-size: 1rem;
    }

    .final-cta-title {
        font-size: 1.3rem;
        line-height: 1.7;
    }

    .problem-card {
        padding: 1.8rem 1.2rem;
    }

    .problem-card h3 {
        font-size: 1rem;
    }

    .service-card {
        padding: 1.8rem 1.2rem;
    }

    .process-step {
        padding: 1.8rem 1.2rem;
    }

    .cta-button {
        font-size: 0.9rem;
        padding: 0.9rem 1.5rem;
    }

    .large-cta {
        font-size: 0.95rem;
        padding: 1.1rem 1.8rem;
    }

    .line-title {
        font-size: 1.3rem;
    }

    .line-add-button {
        font-size: 0.95rem;
    }

    .container {
        padding: 0 0.8rem;
    }

    /* フッターをスマホで縦並び */
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }

    .footer-logo-image {
        width: 150px;
    }

    .footer-info-wrapper {
        text-align: center;
    }
}

/* ========================================
   印刷スタイル
   ======================================== */
@media print {
    .hero,
    .scroll-indicator,
    .cta-button,
    .contact-section,
    .footer {
        display: none;
    }
}