/* カラーパレット定義 */
:root {
    --line-color: #00C755;
    --line-hover: #00B14A;
    --line-dark: #009E3D;
    --navy: #1a2332;
    --navy-light: #2d3e50;
    --blue-gray: #6FA0C7;
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --text-dark: #1a1a1a;
    --text-light: #6b7280;
    --accent-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --hero-gradient: linear-gradient(180deg, #f0f4f8 0%, #ffffff 100%);
}

/* リセット */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.8;
    color: var(--text-dark);
    background: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

/* ロゴ */
.logo-container {
    position: absolute;
    top: 20px;
    left: 30px;
    z-index: 100;
}

.site-logo {
    width: 180px;
    height: auto;
    transition: all 0.3s ease;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.1));
}

.site-logo:hover {
    transform: scale(1.05);
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.15));
}

/* ヒーローセクション - プレミアムデザイン */
.hero {
    background: var(--hero-gradient);
    padding: 80px 0 100px;
    text-align: center;
    width: 100%;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(111, 160, 199, 0.08) 0%, transparent 70%);
    animation: heroGlow 15s ease-in-out infinite;
}

@keyframes heroGlow {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(20px, 20px) scale(1.1); }
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 50px;
    position: relative;
    z-index: 1;
}

.hero-text {
    width: 100%;
    max-width: 700px;
}

/* ローンチバッジ */
.launch-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #FF6B6B 0%, #FF8E53 100%);
    color: white;
    padding: 12px 24px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 30px;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
    animation: fadeInUp 0.8s ease-out, pulse 2s ease-in-out infinite;
}

.badge-icon {
    font-size: 1.2rem;
}

.badge-text {
    letter-spacing: 0.02em;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 6px 20px rgba(255, 107, 107, 0.4);
    }
}

.hero-title {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 24px;
    line-height: 1.3;
    color: var(--navy);
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--text-light);
    font-weight: 500;
    letter-spacing: 0.03em;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

/* プレミアム製品画像 */
.hero-product-image {
    width: 100%;
    max-width: 750px;
    margin: 0 auto 60px;
    position: relative;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-product-image::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(0, 199, 85, 0.1) 0%, transparent 70%);
    z-index: -1;
    filter: blur(40px);
}

.product-image {
    width: 100%;
    height: auto;
    border-radius: 24px;
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.15),
        0 10px 30px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.5);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
}

.product-image:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 
        0 30px 80px rgba(0, 0, 0, 0.2),
        0 15px 40px rgba(0, 0, 0, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

/* CTAセクション */
.cta-section {
    text-align: center;
    margin: 60px 0 40px;
    width: 100%;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

/* ローンチアナウンス */
.launch-announcement {
    margin-bottom: 0;
    padding: 32px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 249, 250, 0.95) 100%);
    border-radius: 20px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    border: 2px solid rgba(0, 199, 85, 0.1);
}

.launch-announcement h2,
.launch-announcement h3 {
    margin: 0;
}

.launch-main {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--navy);
    margin-bottom: 16px;
    line-height: 1.3;
}

.launch-detail {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 8px;
    line-height: 1.6;
    font-weight: 500;
}

.launch-line {
    font-size: 2rem;
    font-weight: 800;
    color: var(--line-color);
    margin-top: 40px;
    margin-bottom: 80px;
    line-height: 1.5;
    padding-bottom: 20px;
}

.cta-note {
    margin-top: 20px;
    font-size: 0.9rem;
    color: var(--text-light);
    font-weight: 500;
}

/* プレミアムLINEボタン */
.line-button {
    background: linear-gradient(135deg, var(--line-color) 0%, var(--line-hover) 100%);
    color: var(--white);
    padding: 24px 56px;
    font-size: 1.25rem;
    font-weight: 700;
    border: none;
    border-radius: 60px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
    display: inline-block;
    box-shadow: 
        0 10px 30px rgba(0, 199, 85, 0.3),
        0 5px 15px rgba(0, 199, 85, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    letter-spacing: 0.05em;
    position: relative;
    overflow: hidden;
}

.line-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.line-button:hover::before {
    width: 300px;
    height: 300px;
}

.line-button:hover {
    background: linear-gradient(135deg, var(--line-hover) 0%, var(--line-dark) 100%);
    transform: translateY(-4px) scale(1.02);
    box-shadow: 
        0 15px 40px rgba(0, 199, 85, 0.4),
        0 8px 20px rgba(0, 199, 85, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

.line-button:active {
    transform: translateY(-2px) scale(1.01);
}

/* パルスアニメーション */
@keyframes linePulse {
    0% {
        box-shadow: 
            0 10px 30px rgba(0, 199, 85, 0.3),
            0 5px 15px rgba(0, 199, 85, 0.2),
            0 0 0 0 rgba(0, 199, 85, 0.4);
    }
    70% {
        box-shadow: 
            0 10px 30px rgba(0, 199, 85, 0.3),
            0 5px 15px rgba(0, 199, 85, 0.2),
            0 0 0 20px rgba(0, 199, 85, 0);
    }
    100% {
        box-shadow: 
            0 10px 30px rgba(0, 199, 85, 0.3),
            0 5px 15px rgba(0, 199, 85, 0.2),
            0 0 0 0 rgba(0, 199, 85, 0);
    }
}

.line-button {
    animation: linePulse 3s infinite;
}

.line-button:hover {
    animation: none;
}

/* 睡眠姿勢画像セクション */
.sleeping-positions-section {
    padding: 60px 0;
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
}

.sleeping-positions-image {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    text-align: center;
}

.positions-image {
    width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.positions-image:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

/* セクション共通 */
section {
    padding: 100px 0;
    width: 100%;
    position: relative;
}

.section-title {
    text-align: center;
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 60px;
    color: var(--navy);
    position: relative;
    padding-bottom: 24px;
    letter-spacing: -0.01em;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 5px;
    background: linear-gradient(90deg, var(--line-color), var(--blue-gray));
    border-radius: 3px;
    box-shadow: 0 2px 10px rgba(0, 199, 85, 0.3);
}

/* フィーチャーセクション */
.features {
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    max-width: 720px;
    margin: 0 auto;
}

.feature-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    padding: 40px 35px;
    border-radius: 20px;
    border: 1px solid rgba(111, 160, 199, 0.15);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 199, 85, 0.03) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card:hover {
    border-color: rgba(0, 199, 85, 0.4);
    transform: translateY(-8px);
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.1),
        0 10px 20px rgba(0, 0, 0, 0.05);
}

.feature-icon {
    margin-bottom: 24px;
    text-align: center;
    width: 100%;
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-radius: 12px;
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 12px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.feature-card:hover .feature-icon img {
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.feature-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--navy);
    text-align: center;
    letter-spacing: -0.01em;
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.9;
    text-align: center;
    font-size: 0.98rem;
}

/* 製品特徴セクション */
.product-features {
    background: var(--white);
    padding: 100px 0;
}

.feature-showcase {
    display: flex;
    flex-direction: column;
    gap: 80px;
    max-width: 1100px;
    margin: 0 auto;
}

.showcase-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.showcase-item.reverse {
    direction: rtl;
}

.showcase-item.reverse > * {
    direction: ltr;
}

.showcase-image {
    width: 100%;
    position: relative;
}

.showcase-image img {
    width: 100%;
    height: 350px;
    object-fit: cover;
    border-radius: 20px;
    box-shadow: 
        0 15px 40px rgba(0, 0, 0, 0.12),
        0 8px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.showcase-image img:hover {
    transform: scale(1.03);
    box-shadow: 
        0 20px 50px rgba(0, 0, 0, 0.15),
        0 10px 25px rgba(0, 0, 0, 0.1);
}

.showcase-content {
    padding: 20px;
}

.showcase-content h3 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--navy);
    letter-spacing: -0.01em;
}

.showcase-content p {
    font-size: 1.08rem;
    line-height: 1.9;
    color: var(--text-light);
}

/* 枕タッチ動画 */
.pillow-touch-videos {
    display: flex;
    flex-direction: column;
    gap: 30px;
    max-width: 600px;
    margin: 60px auto 0;
    padding: 0 24px;
}

.video-item {
    width: 100%;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 
        0 15px 40px rgba(0, 0, 0, 0.12),
        0 8px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.video-item:hover {
    transform: translateY(-8px);
    box-shadow: 
        0 20px 50px rgba(0, 0, 0, 0.15),
        0 10px 25px rgba(0, 0, 0, 0.1);
}

.touch-video {
    width: 100%;
    height: auto;
    display: block;
}

/* 比較表セクション */
.comparison-section {
    background: linear-gradient(180deg, #f8f9fa 0%, #ffffff 100%);
    padding: 100px 0;
}

.comparison-card {
    background: var(--white);
    border-radius: 24px;
    padding: 40px;
    box-shadow: 
        0 10px 40px rgba(0, 0, 0, 0.08),
        0 5px 20px rgba(0, 0, 0, 0.05);
    max-width: 1000px;
    margin: 0 auto;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 1rem;
}

.comparison-table thead {
    background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
    color: var(--white);
}

.comparison-table thead th {
    padding: 20px 16px;
    text-align: left;
    font-weight: 700;
    font-size: 1.05rem;
    border-bottom: 3px solid var(--line-color);
}

.comparison-table thead th.highlight-column {
    background: linear-gradient(135deg, var(--line-color) 0%, var(--line-hover) 100%);
    position: relative;
}

.comparison-table thead th.highlight-column::after {
    content: '✓ おすすめ';
    position: absolute;
    top: -10px;
    right: 10px;
    background: var(--white);
    color: var(--line-color);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.comparison-table tbody tr {
    border-bottom: 1px solid #eef2f6;
    transition: background-color 0.3s ease;
}

.comparison-table tbody tr:hover {
    background-color: rgba(0, 199, 85, 0.03);
}

.comparison-table tbody td {
    padding: 18px 16px;
    color: var(--text-dark);
}

.comparison-table tbody td:first-child {
    font-weight: 600;
    color: var(--navy);
}

.comparison-table tbody td.highlight-column {
    background: linear-gradient(135deg, rgba(0, 199, 85, 0.05) 0%, rgba(0, 199, 85, 0.02) 100%);
    font-weight: 600;
    color: var(--navy);
}

.comparison-table tbody td.highlight-column strong {
    color: var(--line-color);
}

/* お悩みセクション */
.problems-section {
    background: linear-gradient(135deg, #1a2332 0%, #2d3e50 100%);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.problems-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(111, 160, 199, 0.1) 0%, transparent 70%);
    animation: problemsGlow 20s ease-in-out infinite;
}

@keyframes problemsGlow {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, -30px); }
}

.problems-header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    z-index: 1;
}

.problems-subtitle {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1rem;
    margin-bottom: 12px;
    font-weight: 500;
}

.problems-title {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, #ff6b9d 0%, #c06cd8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 0.02em;
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.problem-card {
    background: rgba(255, 255, 255, 0.08);
    padding: 36px 28px;
    border-radius: 20px;
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.problem-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 107, 157, 0.1) 0%, rgba(192, 108, 216, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.problem-card:hover::before {
    opacity: 1;
}

.problem-card:hover {
    transform: translateY(-10px);
    box-shadow: 
        0 20px 50px rgba(0, 0, 0, 0.3),
        0 10px 25px rgba(255, 107, 157, 0.2);
    border-color: rgba(255, 107, 157, 0.5);
}

.problem-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #ff6b9d 0%, #c06cd8 100%);
    border-radius: 50%;
    color: white;
    box-shadow: 0 8px 20px rgba(255, 107, 157, 0.4);
    position: relative;
    z-index: 1;
}

.problem-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: white;
    margin-bottom: 16px;
    letter-spacing: 0.01em;
    position: relative;
    z-index: 1;
}

.problem-card p {
    font-size: 0.95rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.8);
    position: relative;
    z-index: 1;
}

/* レコメンデーションセクション */
.recommendation {
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
}

.recommendation-list {
    max-width: 680px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.recommendation-item {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    padding: 28px 32px;
    background: var(--white);
    border-radius: 16px;
    font-size: 1.08rem;
    border-left: 5px solid var(--line-color);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.recommendation-item:hover {
    transform: translateX(8px);
    box-shadow: 
        0 10px 30px rgba(0, 0, 0, 0.1),
        0 5px 15px rgba(0, 0, 0, 0.05);
    border-left-width: 6px;
}

.check-mark {
    color: var(--line-color);
    font-weight: 700;
    font-size: 1.5rem;
    flex-shrink: 0;
    filter: drop-shadow(0 2px 4px rgba(0, 199, 85, 0.2));
}

/* ベネフィットセクション */
.benefits {
    background: linear-gradient(135deg, #1a2332 0%, #2d3e50 100%);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.benefits::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(111, 160, 199, 0.1) 0%, transparent 70%);
    animation: benefitsGlow 20s ease-in-out infinite;
}

@keyframes benefitsGlow {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-30px, 30px); }
}

.benefits .section-title {
    color: var(--white);
    position: relative;
    z-index: 1;
}

.benefits .section-title::after {
    background: linear-gradient(90deg, var(--line-color), var(--white));
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 720px;
    margin: 0 auto 60px;
    position: relative;
    z-index: 1;
}

.benefit-item {
    text-align: center;
    padding: 36px 24px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 
        0 8px 20px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.benefit-item:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-8px);
    box-shadow: 
        0 15px 35px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.15);
    border-color: rgba(0, 199, 85, 0.4);
}

.benefit-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--line-color);
    margin-bottom: 16px;
    text-shadow: 0 2px 10px rgba(0, 199, 85, 0.3);
}

.benefit-item h3 {
    font-size: 1.15rem;
    margin-bottom: 10px;
    font-weight: 700;
    letter-spacing: 0.01em;
}

.benefit-item p {
    font-size: 0.92rem;
    opacity: 0.9;
}

/* QRセクション */
.qr-section {
    text-align: center;
    margin-top: 60px;
    position: relative;
    z-index: 1;
}

.qr-section > p {
    margin-bottom: 30px;
    font-size: 1.05rem;
}

.qr-code {
    display: inline-block;
    padding: 32px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 24px;
    box-shadow: 
        0 15px 40px rgba(0, 0, 0, 0.2),
        0 8px 20px rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.qr-code img {
    width: 200px;
    height: 200px;
    margin-bottom: 16px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.qr-code p {
    color: var(--text-dark);
    font-size: 0.95rem;
    font-weight: 600;
}

/* FAQセクション */
.faq {
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
}

.faq-list {
    max-width: 720px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.faq-item {
    background: var(--white);
    padding: 32px 36px;
    border-radius: 20px;
    box-shadow: 
        0 4px 15px rgba(0, 0, 0, 0.05),
        0 2px 8px rgba(0, 0, 0, 0.03);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.faq-item:hover {
    box-shadow: 
        0 12px 30px rgba(0, 0, 0, 0.1),
        0 6px 15px rgba(0, 0, 0, 0.05);
    transform: translateY(-4px);
    border-color: rgba(0, 199, 85, 0.2);
}

.faq-item h3 {
    color: var(--navy);
    font-size: 1.15rem;
    margin-bottom: 16px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
    letter-spacing: -0.01em;
}

.faq-item h3::before {
    content: 'Q';
    background: linear-gradient(135deg, var(--line-color), var(--line-hover));
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    font-weight: 800;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0, 199, 85, 0.3);
}

.faq-item p {
    color: var(--text-light);
    line-height: 1.9;
    padding-left: 44px;
    font-size: 0.98rem;
}

/* フッター */
.footer {
    background: linear-gradient(180deg, #f8f9fa 0%, #ffffff 100%);
    color: var(--text-dark);
    padding: 80px 0 40px;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.3), 
        transparent
    );
}

.footer-cta {
    text-align: center;
    margin-bottom: 60px;
}

.launch-info {
    margin-bottom: 24px;
}

.launch-date {
    display: inline-block;
    background: linear-gradient(135deg, #FF6B6B 0%, #FF8E53 100%);
    color: white;
    padding: 10px 28px;
    border-radius: 50px;
    font-size: 1.05rem;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
    margin-bottom: 0;
}

.footer-cta {
    text-align: center;
    margin-bottom: 60px;
}

.footer-info {
    text-align: center;
    padding-top: 36px;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    opacity: 0.6;
    font-size: 0.9rem;
    color: var(--text-light);
}

/* レスポンシブ */
@media (max-width: 768px) {
    .logo-container {
        top: 15px;
        left: 15px;
    }
    
    .site-logo {
        width: 140px;
    }
    
    .launch-badge {
        font-size: 0.9rem;
        padding: 10px 20px;
    }
    
    .launch-date {
        font-size: 0.95rem;
        padding: 8px 20px;
    }
    
    .sleeping-positions-section {
        padding: 40px 0;
    }
    
    .sleeping-positions-image {
        max-width: 350px;
    }
    
    .pillow-touch-videos {
        gap: 24px;
        margin-top: 50px;
    }
    
    .launch-announcement {
        padding: 24px;
    }
    
    .launch-main {
        font-size: 2rem;
    }
    
    .launch-detail {
        font-size: 1rem;
    }
    
    .launch-line {
        font-size: 1.6rem;
        margin-top: 32px;
        margin-bottom: 60px;
        padding-bottom: 16px;
    }
    
    .showcase-item,
    .showcase-item.reverse {
        grid-template-columns: 1fr;
        gap: 30px;
        direction: ltr;
    }
    
    .showcase-image img {
        height: 280px;
    }
    
    .showcase-content h3 {
        font-size: 1.5rem;
    }
    
    .showcase-content p {
        font-size: 1rem;
    }
    
    .feature-showcase {
        gap: 60px;
    }
    
    .comparison-card {
        padding: 20px;
        border-radius: 16px;
    }
    
    .comparison-table {
        font-size: 0.9rem;
    }
    
    .comparison-table thead th {
        padding: 14px 10px;
        font-size: 0.95rem;
    }
    
    .comparison-table tbody td {
        padding: 14px 10px;
    }
    
    .problems-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
    
    .problems-title {
        font-size: 2rem;
    }
    
    .problem-icon {
        width: 56px;
        height: 56px;
    }
    
    .problem-card h3 {
        font-size: 1.15rem;
    }
    
    .hero {
        padding: 60px 0 80px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .line-button {
        padding: 20px 44px;
        font-size: 1.1rem;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .product-image {
        border-radius: 16px;
    }
    
    section {
        padding: 80px 0;
    }
}

@media (max-width: 480px) {
    .logo-container {
        top: 10px;
        left: 10px;
    }
    
    .site-logo {
        width: 120px;
    }
    
    .launch-badge {
        font-size: 0.85rem;
        padding: 8px 16px;
        gap: 6px;
    }
    
    .badge-icon {
        font-size: 1rem;
    }
    
    .launch-date {
        font-size: 0.85rem;
        padding: 8px 16px;
    }
    
    .sleeping-positions-section {
        padding: 30px 0;
    }
    
    .sleeping-positions-image {
        max-width: 300px;
    }
    
    .pillow-touch-videos {
        gap: 20px;
        margin-top: 40px;
        padding: 0 16px;
    }
    
    .launch-announcement {
        padding: 20px;
    }
    
    .launch-main {
        font-size: 1.6rem;
    }
    
    .launch-detail {
        font-size: 0.95rem;
    }
    
    .launch-line {
        font-size: 1.3rem;
        margin-top: 28px;
        margin-bottom: 52px;
        padding-bottom: 12px;
    }
    
    .comparison-card {
        padding: 12px;
    }
    
    .comparison-table {
        font-size: 0.75rem;
    }
    
    .comparison-table thead th {
        padding: 10px 6px;
        font-size: 0.8rem;
    }
    
    .comparison-table tbody td {
        padding: 10px 6px;
    }
    
    .comparison-table thead th.highlight-column::after {
        display: none;
    }
    
    .problems-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .problems-title {
        font-size: 1.6rem;
    }
    
    .problem-card {
        padding: 28px 20px;
    }
    
    .problem-icon {
        width: 48px;
        height: 48px;
    }
    
    .problem-card h3 {
        font-size: 1.05rem;
    }
    
    .problem-card p {
        font-size: 0.9rem;
    }
    
    .hero-title {
        font-size: 1.6rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .line-button {
        padding: 18px 36px;
        font-size: 1rem;
    }
    
    .container {
        padding: 0 16px;
    }
    
    .feature-card,
    .recommendation-item,
    .faq-item {
        padding: 24px 20px;
    }
    
    .footer-cta h2 {
        font-size: 1.3rem;
    }
}

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