/* ==========================================
   施工管理アプリ - 共通スタイルシート
   日本のSaaS（ANDPAD/Kizuku/蔵衛門）風デザイン
   ========================================== */

/* ==========================================
   基本設定・リセット
   ========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* カラーパレット - 建設業界向けSaaS風 */
    --primary-color: #0066CC;
    --primary-dark: #004C99;
    --primary-light: #3385DB;
    --secondary-color: #FF6B35;
    --accent-color: #00C896;
    --text-dark: #1A1A1A;
    --text-gray: #5A5A5A;
    --text-light: #8A8A8A;
    --bg-white: #FFFFFF;
    --bg-gray-light: #F7F9FC;
    --bg-gray: #E8ECF2;
    --border-color: #D5DCE8;
    --success: #00C896;
    --warning: #FFA726;
    
    /* タイポグラフィ */
    --font-main: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic Medium", "Meiryo", sans-serif;
    --font-en: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    color: var(--text-dark);
    background-color: var(--bg-white);
    line-height: 1.8;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
    opacity: 0.8;
}

/* ==========================================
   共通レイアウト
   ========================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

.section-alt {
    background-color: var(--bg-gray-light);
}

/* ==========================================
   ヘッダー
   ========================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--bg-white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    transition: all 0.3s ease;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: 0.05em;
}

.nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-dark);
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-color);
    opacity: 1;
}

.nav-cta {
    padding: 10px 24px;
    background-color: var(--primary-color);
    color: var(--bg-white);
    border-radius: 6px;
    font-weight: 600;
    transition: background-color 0.3s ease;
}

.nav-cta:hover {
    background-color: var(--primary-dark);
    opacity: 1;
}

/* モバイルメニュー */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-dark);
}

/* ==========================================
   ボタンスタイル
   ========================================== */
.btn {
    display: inline-block;
    padding: 16px 40px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, #FF6B35 0%, #FF8C61 100%);
    color: var(--bg-white);
    box-shadow: 0 8px 24px rgba(255, 107, 53, 0.4);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(255, 107, 53, 0.5);
    opacity: 1;
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.3);
    border-color: white;
    opacity: 1;
}

.btn-large {
    padding: 20px 50px;
    font-size: 18px;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

/* ==========================================
   見出し・テキスト
   ========================================== */
.section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    text-align: center;
    margin-bottom: 16px;
    line-height: 1.4;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-gray);
    text-align: center;
    margin-bottom: 60px;
    line-height: 1.8;
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    background-color: var(--primary-light);
    color: var(--bg-white);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
}

/* ==========================================
   ヒーローセクション（強化版）
   ========================================== */
.hero {
    position: relative;
    padding: 160px 0 100px;
    background: linear-gradient(135deg, #0052CC 0%, #0066FF 50%, #00C896 100%);
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

/* アニメーション背景 */
.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 200, 150, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 8s ease-in-out infinite reverse;
}

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

.hero-container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 40px;
    position: relative;
    z-index: 1;
}

.hero-content-wrapper {
    display: flex;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
}

.hero-content {
    flex: 1.2;
    min-width: 500px;
    color: white;
}

.hero-badges {
    display: flex;
    gap: 12px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.badge-highlight {
    background: linear-gradient(135deg, #FF6B35 0%, #FF8C61 100%);
    animation: pulse-glow 2s ease-in-out infinite;
}

.badge-success {
    background: linear-gradient(135deg, #00C896 0%, #00E0A5 100%);
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 0 0 rgba(255, 107, 53, 0.7); }
    50% { box-shadow: 0 0 20px 10px rgba(255, 107, 53, 0); }
}

.hero-catch {
    font-size: 56px;
    font-weight: 800;
    color: white;
    line-height: 1.3;
    margin-bottom: 24px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

.hero-catch-small {
    font-size: 20px;
    font-weight: 600;
    opacity: 1;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    letter-spacing: 0.05em;
}

.hero-catch-main {
    font-size: 56px;
    display: block;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

.highlight-text {
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    filter: drop-shadow(0 2px 4px rgba(255, 215, 0, 0.5));
}

.hero-subcopy {
    font-size: 20px;
    color: rgba(255, 255, 255, 1);
    margin-bottom: 40px;
    line-height: 1.8;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.hero-subcopy strong {
    color: #FFD700;
    font-weight: 700;
    font-size: 24px;
}

/* 特徴ポイント */
.hero-points {
    display: flex;
    gap: 32px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.hero-point {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 12px 20px;
    border-radius: 50px;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.point-icon {
    font-size: 24px;
}

.point-text {
    font-size: 16px;
    color: white;
}

.point-text strong {
    font-weight: 700;
    font-size: 20px;
    margin-left: 4px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.btn-pulse {
    animation: btn-pulse 2s ease-in-out infinite;
}

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

.btn-icon-before {
    margin-right: 8px;
}

.btn-arrow {
    margin-left: 8px;
    display: inline-block;
    transition: transform 0.3s ease;
}

.btn:hover .btn-arrow {
    transform: translateX(4px);
}

.hero-note {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.9);
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.check-icon {
    color: #00E0A5;
    font-weight: 700;
    margin-right: 4px;
}

/* ビジュアル要素 */
.hero-visual {
    flex: 0.8;
    min-width: 400px;
    position: relative;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    padding-left: 0;
}

.hero-mockup {
    position: relative;
    z-index: 2;
}

.mockup-device {
    width: 320px;
    height: 640px;
    background: linear-gradient(135deg, #1A1A1A 0%, #2A2A2A 100%);
    border-radius: 40px;
    padding: 12px;
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.3);
    position: relative;
}

.mockup-device::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 6px;
    background: #333;
    border-radius: 3px;
}

.mockup-screen {
    width: 100%;
    height: 100%;
    background: white;
    border-radius: 32px;
    overflow: hidden;
}

.mockup-content {
    padding: 50px 20px 20px;
}

.mockup-header {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 20px;
    text-align: center;
}

.mockup-card {
    background: var(--bg-gray-light);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.mockup-icon {
    font-size: 24px;
}

.mockup-text {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
}

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

.animate-slide-up {
    animation: slideUp 0.6s ease-out forwards;
    opacity: 0;
}

/* 浮遊バッジ */
.floating-badge {
    position: absolute;
    background: white;
    border-radius: 16px;
    padding: 16px 20px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
    animation: floatBadge 3s ease-in-out infinite;
}

.floating-badge-1 {
    top: 10%;
    right: -5%;
    animation-delay: 0s;
}

.floating-badge-2 {
    top: 50%;
    right: -10%;
    animation-delay: 1s;
}

.floating-badge-3 {
    bottom: 15%;
    right: 0%;
    animation-delay: 2s;
}

@keyframes floatBadge {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
}

.badge-content {
    text-align: center;
}

.badge-number {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: 4px;
}

.badge-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-gray);
}

/* 波状の装飾 */
.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    z-index: 1;
}

.hero-wave svg {
    width: 100%;
    height: auto;
    display: block;
}

/* ==========================================
   機能カード
   ========================================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin-top: 60px;
}

.feature-card {
    background-color: var(--bg-white);
    border-radius: 12px;
    padding: 40px 32px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 24px;
    background-color: var(--bg-gray-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--primary-color);
}

.feature-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.feature-description {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.8;
}

/* ==========================================
   料金プラン
   ========================================== */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    max-width: 1100px;
    margin: 0 auto;
}

.pricing-card {
    background-color: var(--bg-white);
    border-radius: 16px;
    padding: 40px 32px;
    text-align: center;
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
}

.pricing-card.popular {
    border-color: var(--primary-color);
    box-shadow: 0 8px 24px rgba(0, 102, 204, 0.15);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--secondary-color);
    color: var(--bg-white);
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
}

.pricing-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-gray);
    margin-bottom: 16px;
}

.pricing-price {
    font-size: 48px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.pricing-price span {
    font-size: 18px;
    font-weight: 500;
    color: var(--text-gray);
}

.pricing-capacity {
    font-size: 16px;
    color: var(--text-gray);
    margin-bottom: 32px;
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
    text-align: left;
}

.pricing-features li {
    padding: 12px 0;
    border-bottom: 1px solid var(--bg-gray);
    font-size: 15px;
    color: var(--text-gray);
    display: flex;
    align-items: center;
    gap: 8px;
}

.pricing-features li::before {
    content: "✓";
    color: var(--success);
    font-weight: 700;
    font-size: 18px;
}

/* ==========================================
   FAQ
   ========================================== */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--bg-white);
    border-radius: 8px;
    margin-bottom: 16px;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.faq-question {
    padding: 24px 28px;
    font-size: 17px;
    font-weight: 600;
    color: var(--text-dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease;
}

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

.faq-icon {
    font-size: 20px;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

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

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

.faq-answer-content {
    padding: 0 28px 24px;
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.8;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

/* ==========================================
   CTA（Call to Action）
   ========================================== */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--bg-white);
    text-align: center;
    padding: 80px 20px;
}

.cta-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
}

.cta-description {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.btn-white {
    background-color: var(--bg-white);
    color: var(--primary-color);
}

.btn-white:hover {
    background-color: var(--bg-gray-light);
    opacity: 1;
}

/* ==========================================
   フッター
   ========================================== */
.footer {
    background-color: #2A2A2A;
    color: #CCCCCC;
    padding: 60px 0 30px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    color: var(--bg-white);
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #CCCCCC;
    font-size: 14px;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--bg-white);
    opacity: 1;
}

.footer-bottom {
    border-top: 1px solid #444;
    padding-top: 30px;
    text-align: center;
    font-size: 14px;
    color: #999;
}

/* ==========================================
   動画セクション
   ========================================== */
.video-section {
    text-align: center;
}

.video-container {
    max-width: 900px;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.video-placeholder {
    width: 100%;
    aspect-ratio: 16 / 9;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-white);
    font-size: 24px;
    font-weight: 600;
}

/* ==========================================
   コンテンツページ共通
   ========================================== */
.page-header {
    padding: 140px 0 60px;
    background-color: var(--bg-gray-light);
    text-align: center;
}

.page-title {
    font-size: 40px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.page-description {
    font-size: 16px;
    color: var(--text-gray);
    max-width: 700px;
    margin: 0 auto;
}

.page-content {
    padding: 80px 0;
}

.content-section {
    margin-bottom: 60px;
}

.content-section h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 3px solid var(--primary-color);
}

.content-section h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 32px 0 16px;
}

.content-section p {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.9;
    margin-bottom: 20px;
}

.content-section ul, .content-section ol {
    margin-left: 24px;
    margin-bottom: 20px;
}

.content-section li {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.9;
    margin-bottom: 12px;
}

/* ==========================================
   開発者紹介ページ
   ========================================== */
.developer-profile {
    display: flex;
    gap: 60px;
    align-items: flex-start;
    margin-bottom: 60px;
}

.developer-image {
    flex-shrink: 0;
}

.developer-photo {
    width: 280px;
    height: 280px;
    border-radius: 12px;
    background-color: var(--bg-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 80px;
    color: var(--text-light);
}

.developer-photo-img {
    width: 280px;
    height: 280px;
    border-radius: 12px;
    object-fit: cover;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.developer-info h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.developer-title {
    font-size: 16px;
    color: var(--text-gray);
    margin-bottom: 24px;
}

.developer-mission {
    background-color: var(--bg-gray-light);
    padding: 32px;
    border-radius: 12px;
    margin-top: 24px;
}

.developer-mission h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 16px;
}

/* ==========================================
   会社情報ページ
   ========================================== */
.company-info-table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--bg-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.company-info-table th,
.company-info-table td {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
}

.company-info-table th {
    background-color: var(--bg-gray-light);
    font-weight: 600;
    color: var(--text-dark);
    width: 200px;
}

.company-info-table td {
    color: var(--text-gray);
}

.company-info-table tr:last-child th,
.company-info-table tr:last-child td {
    border-bottom: none;
}

/* ==========================================
   レスポンシブデザイン
   ========================================== */
@media (max-width: 768px) {
    /* ナビゲーション */
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-white);
        flex-direction: column;
        gap: 0;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links li {
        border-bottom: 1px solid var(--border-color);
    }

    .nav-link {
        display: block;
        padding: 16px 20px;
    }

    .mobile-menu-btn {
        display: block;
    }

    .nav-cta {
        margin: 0 20px 16px;
    }

    /* セクション */
    .section {
        padding: 60px 0;
    }

    /* ヒーロー（強化版） */
    .hero {
        padding: 140px 0 80px;
        min-height: auto;
    }

    .hero-content-wrapper {
        flex-direction: column;
        gap: 40px;
    }

    .hero-content {
        min-width: auto;
        width: 100%;
    }

    .hero-catch {
        font-size: 36px;
    }

    .hero-catch-small {
        font-size: 16px;
    }

    .hero-catch-main {
        font-size: 36px;
    }

    .hero-subcopy {
        font-size: 16px;
    }

    .hero-subcopy strong {
        font-size: 20px;
    }

    .hero-points {
        gap: 12px;
    }

    .hero-point {
        padding: 10px 16px;
    }

    .point-icon {
        font-size: 20px;
    }

    .point-text {
        font-size: 14px;
    }

    .point-text strong {
        font-size: 16px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .hero-note {
        flex-direction: column;
        gap: 8px;
        font-size: 13px;
    }

    .hero-visual {
        min-width: auto;
        width: 100%;
        padding-left: 0;
        justify-content: center;
    }

    .mockup-device {
        width: 280px;
        height: 560px;
    }

    .floating-badge {
        display: none;
    }

    /* 見出し */
    .section-title {
        font-size: 28px;
    }

    /* グリッド */
    .features-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    /* 開発者プロフィール */
    .developer-profile {
        flex-direction: column;
        gap: 32px;
    }

    .developer-photo,
    .developer-photo-img {
        width: 200px;
        height: 200px;
        margin: 0 auto;
        font-size: 60px;
    }

    /* テーブル */
    .company-info-table {
        font-size: 14px;
    }

    .company-info-table th,
    .company-info-table td {
        padding: 16px;
        display: block;
        width: 100%;
    }

    .company-info-table th {
        background-color: var(--bg-gray-light);
        border-bottom: none;
        padding-bottom: 8px;
    }

    .company-info-table td {
        padding-top: 8px;
        padding-bottom: 20px;
    }

    /* CTA */
    .cta-title {
        font-size: 28px;
    }

    .cta-description {
        font-size: 16px;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .cta-buttons .btn {
        width: 100%;
        max-width: 300px;
    }

    /* フッター */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .hero-catch {
        font-size: 26px;
    }

    .section-title {
        font-size: 24px;
    }

    .btn {
        padding: 14px 30px;
        font-size: 15px;
    }

    .btn-large {
        padding: 16px 40px;
        font-size: 16px;
    }
}

/* ==========================================
   ユーティリティクラス
   ========================================== */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mt-5 { margin-top: 40px; }

.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }
.mb-5 { margin-bottom: 40px; }

.pt-1 { padding-top: 8px; }
.pt-2 { padding-top: 16px; }
.pt-3 { padding-top: 24px; }
.pt-4 { padding-top: 32px; }
.pt-5 { padding-top: 40px; }

.pb-1 { padding-bottom: 8px; }
.pb-2 { padding-bottom: 16px; }
.pb-3 { padding-bottom: 24px; }
.pb-4 { padding-bottom: 32px; }
.pb-5 { padding-bottom: 40px; }