/* CSS Variables */
:root {
    --primary-bg: #faf9f7;
    --secondary-bg: #eae8dd;
    --card-bg: #ffffff;
    --text-primary: #1a1a1a;
    --text-secondary: #4a4a4a;
    --text-muted: #888888;
    --accent-primary: #6b8e5a;
    --accent-secondary: #d4a574;
    --button-primary: #314D36;
    --button-hover: #4a6b4d;
    --border-light: #e8e8e8;
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
    
    /* Typography System */
    --font-size-xs: 0.875rem;
    --font-size-sm: 1rem;
    --font-size-base: 1.125rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;
    --font-size-4xl: 3rem;
    
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.6;
    
    --letter-spacing-tight: -0.025em;
    --letter-spacing-normal: 0;
    --letter-spacing-wide: 0.025em;
    
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    
    /* Section Background Colors */
    --bg-hero: #faf9f7;
    --bg-intro: #f0ede8;
    --bg-pain: #e8f4f0;
    --bg-solution: #f8f0e8;
    --bg-value: #e8f0f8;
    --bg-achievements: #f0e8f4;
    --bg-pricing: #f4f0e8;
    --bg-faq: #e8f4f0;
    --bg-final: #faf9f7;
    --bg-footer: #eae8dd;
}

/* Reset and Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Yu Gothic Medium', '游ゴシック Medium', 'YuGothic', 'Yu Gothic', '游ゴシック', 'Hiragino Sans', 'ヒラギノ角ゴ ProN W3', 'Hiragino Kaku Gothic ProN', 'メイリオ', Meiryo, sans-serif;
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    color: var(--text-primary);
    background-color: var(--bg-hero);
    overflow-x: hidden;
    transition: background-color 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    font-feature-settings: "palt" 1;
    -webkit-text-size-adjust: 100%;
    text-rendering: optimizeLegibility;
}

/* Container */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3 {
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
    line-height: var(--line-height-tight);
    letter-spacing: var(--letter-spacing-tight);
    font-feature-settings: "palt" 1;
}

h1 {
    font-size: clamp(var(--font-size-4xl), 6vw, 5rem);
    font-weight: 800;
    letter-spacing: var(--letter-spacing-tight);
    margin-bottom: var(--space-lg);
    line-height: 1.1;
}

h2 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    margin-bottom: 4rem;
    letter-spacing: var(--letter-spacing-tight);
    line-height: var(--line-height-tight);
    color: #1a1a1a;
}

h3 {
    font-size: clamp(1.25rem, 2vw, 1.5rem);
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
    line-height: var(--line-height-normal);
    letter-spacing: var(--letter-spacing-normal);
}

/* Icon styling */
h3 i {
    margin-right: 0.5rem;
    color: var(--text-primary);
}

/* Lottie animation styling */
lottie-player {
    vertical-align: middle;
    transition: transform 0.3s ease;
}

h3:hover lottie-player,
h4:hover lottie-player {
    transform: scale(1.1);
}

/* Achievement category h4 lottie styling */
h4 lottie-player {
    vertical-align: middle;
    transition: transform 0.3s ease;
}

p {
    margin-bottom: var(--space-md);
    color: var(--text-secondary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    font-weight: 400;
    letter-spacing: var(--letter-spacing-normal);
}

ul {
    margin-left: 1.5rem;
}

li {
    margin-bottom: var(--space-xs);
    color: var(--text-secondary);
    font-weight: 400;
    line-height: var(--line-height-normal);
    letter-spacing: var(--letter-spacing-normal);
}

/* Hero Section */
.hero {
    /* background controlled by JavaScript fluid colors */
    padding: 10rem 0;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 4rem;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-header {
    text-align: center;
}

.hero-main {
    display: flex;
    align-items: center;
    gap: 4rem;
}

.hero-text {
    flex: 1;
    text-align: left;
    position: relative;
}

.hero-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 0;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
    letter-spacing: var(--letter-spacing-tight);
    white-space: normal;
}

.hero-image {
    flex: 0 0 400px;
    text-align: center;
}

.hero-illustration {
    width: 100%;
    height: auto;
    max-width: 400px;
    filter: drop-shadow(0 10px 25px rgba(0, 0, 0, 0.1));
    transition: transform 0.3s ease;
}

.hero-illustration:hover {
    transform: translateY(-5px);
}

.hero-subtitle {
    font-size: clamp(var(--font-size-lg), 3vw, 1.6rem);
    margin-bottom: var(--space-md);
    color: var(--text-primary);
    font-weight: 600;
    line-height: var(--line-height-normal);
    letter-spacing: var(--letter-spacing-normal);
}

.hero-description {
    font-size: clamp(1rem, 2.5vw, 1.2rem);
    margin-bottom: var(--space-xl);
    color: var(--text-secondary);
    font-weight: 400;
    line-height: var(--line-height-relaxed);
    letter-spacing: var(--letter-spacing-normal);
}

.hero-price {
    font-size: var(--font-size-base);
    margin-bottom: var(--space-xl);
    color: var(--text-muted);
    font-weight: 400;
    line-height: var(--line-height-normal);
    letter-spacing: var(--letter-spacing-wide);
}

/* Hero CTA Group */
.hero-cta-group {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 2rem;
}

/* CTA Button Wrapper for Badge Positioning */
.cta-button-wrapper {
    position: relative;
    display: inline-block;
}

/* Hero Badge - ADAY風サンバーストバッジ */
.hero-free-badge {
    position: absolute;
    top: -15px;
    left: -15px;
    width: 55px;
    height: 55px;
    background: #EB682B;
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    line-height: 1.1;
    letter-spacing: 0.01em;
    transform: rotate(-15deg);
    z-index: 10;
    
    /* 円形のバッジ */
    border-radius: 50%;
    
    /* 影の追加 */
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.hero-free-badge span {
    display: block;
    text-align: center;
}

/* Section Layout - Removed alternating layout */

/* Image Placeholders */
.image-placeholder {
    width: 400px;
    height: 300px;
    background: var(--card-bg);
    border: 2px dashed var(--border-light);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s ease;
}

.image-placeholder:hover {
    border-color: var(--accent-primary);
    background: rgba(107, 142, 90, 0.05);
}

.image-placeholder:hover .placeholder-icon {
    opacity: 1;
    transform: scale(1.1);
}

.placeholder-icon {
    font-size: 3rem;
    opacity: 0.6;
    color: var(--accent-primary);
    transition: all 0.3s ease;
}

.placeholder-text {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    text-align: center;
}

/* CTA Button */
.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: var(--button-primary);
    color: white;
    padding: 1rem 2.5rem;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0.2px;
    border: 2px solid var(--button-primary);
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    position: relative;
    overflow: hidden;
}

.cta-button::after {
    content: "→";
    font-size: 1.2rem;
    transition: transform 0.3s ease;
    display: inline-block;
}

.cta-button:hover {
    background: var(--button-hover);
    border-color: var(--button-hover);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
    letter-spacing: 0.4px;
}

.cta-button:hover::after {
    transform: translateX(4px);
}

.cta-button:active {
    transform: translateY(-1px);
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.2);
}

/* Disabled CTA Button */
.cta-button-disabled {
    background: #9ca3af !important;
    border-color: #9ca3af !important;
    color: #ffffff !important;
    cursor: not-allowed !important;
    opacity: 0.7;
    pointer-events: none;
}

.cta-button-disabled::after {
    content: "" !important;
}

.cta-button-disabled:hover {
    transform: none !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15) !important;
    letter-spacing: 0.2px !important;
}

/* Sections - Expanded padding for better breathing room */
section {
    padding: 6rem 0;
}


/* Pain Points */
.pain-points {
    padding: 2rem 0;
}

.pain-points h2 {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.pain-list {
    max-width: 600px;
    margin: 0 auto;
    list-style: none;
}

.pain-list li {
    padding: 1rem 0;
    border-bottom: 1px solid #eee;
    position: relative;
    padding-left: 2rem;
}

.pain-list li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #3498db;
    font-weight: bold;
}

/* Solution */
.solution {
    /* background removed for seamless flow */
}

.solution h2 {
    text-align: center;
    margin-bottom: 2.5rem;
}

.solution-intro {
    text-align: left;
    margin-bottom: var(--space-xl);
    font-size: var(--font-size-lg);
    line-height: var(--line-height-normal);
    letter-spacing: var(--letter-spacing-normal);
}

.solution-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.solution-item {
    background: var(--card-bg);
    border: 0.5px solid #f0f0f0;
    padding: 2rem 2.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: left;
}

.solution-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    border-color: #e8e8e8;
}

.solution-item h3 {
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: var(--line-height-tight);
    white-space: nowrap;
}

/* Value */
.value {
    padding: 2rem 0;
}

.value h2 {
    text-align: center;
    margin-bottom: 3rem;
}

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

.value-item {
    background: var(--card-bg);
    border: 0.5px solid #f0f0f0;
    padding: 2rem 2.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: left;
}

.value-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    border-color: #e8e8e8;
}

.value-item h3 {
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: var(--line-height-tight);
    white-space: nowrap;
}

.value-item ul {
    list-style: none;
}

.value-item li {
    padding-left: 1rem;
    position: relative;
}

.value-item li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: #3498db;
}

/* Achievements */
.achievements {
    /* background removed for seamless flow */
    padding: 4rem 0;
}

.achievements h2 {
    text-align: center;
    margin-bottom: 4rem;
}

/* Profile Achievements Layout */
.profile-achievements {
    display: flex;
    gap: 4rem;
    align-items: flex-start;
    max-width: 1000px;
    margin: 0 auto;
}

.profile-image-container {
    flex-shrink: 0;
    width: 200px;
}

.profile-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 25px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.profile-image:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.profile-content {
    flex: 1;
}

.profile-intro {
    margin-bottom: 3rem;
}

.profile-intro h3 {
    font-size: var(--font-size-2xl);
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.profile-title {
    font-size: var(--font-size-lg);
    color: var(--accent-primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

.profile-description {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: 0;
    text-align: left;
}

.achievements-list {
    display: grid;
    gap: 2rem;
}

.achievement-category h4 {
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 600;
    border-bottom: 2px solid var(--accent-primary);
    padding-bottom: 0.5rem;
    display: inline-block;
}

.achievement-category ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.achievement-category li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-secondary);
    line-height: var(--line-height-normal);
}

.achievement-category li:before {
    content: "▶";
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-size: 0.8rem;
    top: 0.6rem;
}

/* Responsive for profile section */
@media (max-width: 768px) {
    .profile-achievements {
        flex-direction: column;
        gap: 2rem;
        text-align: left;
    }
    
    .profile-image-container {
        width: 150px;
        margin: 0 auto;
    }
    
    .profile-image {
        height: 150px;
    }
    
    .achievements-list {
        gap: 1.5rem;
    }
}

/* Pricing */
.pricing {
    padding: 8rem 0;
    /* background removed for seamless flow */
}

.pricing h2 {
    text-align: center;
    margin-bottom: 4rem;
    color: var(--text-primary);
}

.pricing-plans {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--card-bg);
    border: 0.5px solid #f0f0f0;
    color: var(--text-primary);
    padding: 2.5rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
}

.pricing-card:hover {
    transform: translateY(-3px);
    border-color: #e8e8e8;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.10);
}

.basic-plan {
    border: 2px solid var(--accent-primary);
    position: relative;
}

.basic-plan::before {
    content: "おすすめ";
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-primary);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.plan-header {
    margin-bottom: 2rem;
}

.plan-header h3 {
    font-size: var(--font-size-xl);
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.price {
    font-size: clamp(1.8rem, 4vw, 2.2rem);
    font-weight: 800;
    color: var(--accent-primary);
    line-height: 1.2;
}

.tax {
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--text-secondary);
    white-space: nowrap;
}

.plan-features {
    flex: 1;
    margin-bottom: 2rem;
}

.plan-features ul {
    list-style: none;
    margin: 0;
    text-align: left;
}

.plan-features li {
    padding: 0.75rem 0;
    color: var(--text-secondary);
    font-size: 1rem;
    border-bottom: 1px solid #f5f5f5;
    position: relative;
    padding-left: 1.5rem;
}

.plan-features li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-weight: bold;
}

.plan-features strong {
    color: var(--text-primary);
    font-weight: 600;
}

.plan-footer {
    text-align: center;
}

.plan-note {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

/* FAQ */
.faq {
    /* background removed for seamless flow */
}

.faq h2 {
    text-align: center;
    margin-bottom: 3rem;
}

.faq-items {
    max-width: 700px;
    margin: 0 auto;
}

.faq-item {
    background: var(--card-bg);
    border: 0.5px solid #f0f0f0;
    padding: 1.5rem 2rem;
    margin-bottom: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: left;
}

.faq-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    border-color: #e8e8e8;
}

.faq-item h3 {
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: var(--line-height-tight);
}

/* Final Message */
.final-message {
    padding: 10rem 0;
    text-align: center;
    /* background removed for seamless flow */
}

.final-message h2 {
    margin-bottom: 3rem;
    color: var(--text-primary);
}

.message-content {
    max-width: 500px;
    margin: 0 auto 4rem auto;
    text-align: left;
}

.message-content p {
    font-size: clamp(1.1rem, 3vw, 1.3rem);
    margin-bottom: 2rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* First Month Free */
.first-month-free {
    color: var(--accent-primary);
    font-size: 0.95rem;
    font-weight: 600;
    margin-top: 0.5rem;
    margin-bottom: 0;
    letter-spacing: 0.02em;
}

/* Header Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    /* background: rgba(255, 255, 255, 0.95); - removed for fluid background integration */
    backdrop-filter: blur(10px);
    /* border-bottom: 1px solid var(--border-light); - removed for seamless fluid background */
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-brand a {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 2rem;
    margin: 0;
    padding: 0;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-primary);
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link.active {
    color: var(--text-primary);
    font-weight: 600;
}

.nav-cta {
    background: var(--button-primary);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.nav-cta::after {
    content: "→";
    font-size: 1rem;
    transition: transform 0.3s ease;
    display: inline-block;
}

.nav-cta:hover {
    background: var(--button-hover);
    transform: translateY(-1px);
}

.nav-cta:hover::after {
    transform: translateX(3px);
}

/* Mobile Navigation Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 3px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

/* Body padding for fixed header */
body {
    padding-top: 80px;
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        transform: translateY(-100vh);
        transition: transform 0.3s ease;
        border-bottom: 1px solid var(--border-light);
    }
    
    .nav-menu.active {
        transform: translateY(0);
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
    
    .nav-cta {
        padding: 0.75rem 2rem;
    }
}

/* Coffee Animation Section */
.coffee-animation {
    padding: 6rem 0;
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Footer */
footer {
    /* background removed for seamless flow */
    color: var(--text-muted);
    text-align: center;
    padding: 3rem 0;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }
    
    .hero {
        padding: 6rem 0;
    }
    
    .hero-content {
        gap: 3rem;
    }
    
    .hero-main {
        flex-direction: column;
        gap: 3rem;
        text-align: center;
    }
    
    .hero-text {
        text-align: center;
    }
    
    .hero-cta-group {
        flex-direction: column;
        align-items: center;
        gap: 0.75rem;
    }
    
    .cta-button-wrapper {
        margin-top: 1rem;
    }
    
    .hero-free-badge {
        width: 50px;
        height: 50px;
        font-size: 0.6rem;
        top: -10px;
        left: -10px;
    }
    
    .hero-image {
        flex: 0 0 auto;
        order: -1;
    }
    
    .hero-illustration {
        max-width: 300px;
    }
    
    .image-placeholder {
        width: 100%;
        max-width: 300px;
        height: 200px;
    }
    
    .hero-title {
        font-size: clamp(1.5rem, 6vw, 2.5rem);
        line-height: 1.3;
        letter-spacing: var(--letter-spacing-tight);
        white-space: normal;
    }
    
    .hero-subtitle {
        font-size: clamp(var(--font-size-base), 4vw, var(--font-size-lg));
        line-height: var(--line-height-normal);
    }
    
    /* セクションタイトルを1行に収める */
    h2 {
        font-size: clamp(1.2rem, 4vw, 1.8rem);
        margin-bottom: 2rem;
    }
    
    section {
        padding: 3rem 0;
    }
    
    .solution-items,
    .value-items,
    .achievements-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .solution-item,
    .value-item,
    .achievement-item,
    .faq-item {
        padding: 2rem;
    }
    
    .pricing {
        padding: 4rem 0;
    }
    
    .pricing-plans {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin: 0 20px;
    }
    
    .pricing-card {
        padding: 2rem;
    }
    
    .final-message {
        padding: 6rem 0;
    }
    
    .message-content {
        text-align: center;
    }
    
    .cta-button {
        padding: 1rem 2rem;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 4rem 0;
    }
    
    section {
        padding: 2.5rem 0;
    }
    
    .solution-item,
    .value-item,
    .achievement-item,
    .faq-item {
        padding: 1.5rem;
    }
    
    .pricing-plans {
        margin: 0 15px;
    }
    
    .pricing-card {
        padding: 1.5rem;
    }
    
    .cta-button {
        padding: 0.9rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .image-placeholder {
        width: 100%;
        max-width: 250px;
        height: 150px;
    }
    
    .placeholder-icon {
        font-size: 2rem;
    }
    
    .placeholder-text {
        font-size: 0.8rem;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

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

.solution-item,
.value-item,
.achievement-item,
.faq-item {
    animation: fadeInUp 0.6s ease-out;
}

/* Hover Effects */
.solution-item:hover,
.value-item:hover,
.achievement-item:hover,
.faq-item:hover {
    transform: translateY(-5px);
    transition: transform 0.3s ease;
}