/* リセットと基本スタイル */
:root {
    --primary-color: #ff6600; /* 指定のオレンジ：活気、情熱 */
    --secondary-color: #fff3e0; /* 非常に薄いオレンジ：優しさ */
    --accent-color: #00bcd4; /* シアン：AI、先進性、知性 */
    --text-color: #424242; /* 少し柔らかい黒 */
    --light-bg: #fafafa;
    --white: #ffffff;
    --transition: all 0.3s ease;
    --border-radius: 16px; /* 丸みのあるデザイン */
    --shadow: 0 4px 20px rgba(0,0,0,0.08); /* 柔らかい影 */
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.8;
    color: var(--text-color);
    background-color: var(--light-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

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

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

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-color);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: var(--accent-color);
    margin: 10px auto 0;
}

/* ヘッダー */
header {
    background-color: #ffffff;
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.05);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -0.02em;
}

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

nav a {
    font-weight: 500;
    font-size: 0.95rem;
    color: #666;
    transition: color 0.2s ease;
}

nav a:hover {
    color: var(--primary-color);
}

/* ナビゲーション内のお問い合わせボタン（オレンジ背景） */
nav .nav-contact-btn {
    padding: 8px 20px;
    background: linear-gradient(45deg, var(--primary-color), #ff8f00);
    color: var(--white) !important;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 4px 15px rgba(255, 102, 0, 0.25);
    transition: var(--transition);
}

nav .nav-contact-btn:hover {
    color: var(--white) !important;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 102, 0, 0.35);
}

/* ハンバーガーメニューボタン */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 28px;
    height: 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.mobile-menu-toggle span {
    width: 100%;
    height: 3px;
    background-color: #333;
    border-radius: 3px;
    transition: all 0.3s ease;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* モバイルメニュー */
.mobile-menu {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    z-index: 999;
    transform: translateY(-100%);
    transition: transform 0.3s ease;
}

.mobile-menu.active {
    transform: translateY(0);
}

.mobile-menu nav ul {
    flex-direction: column;
    gap: 0;
    padding: 20px 0;
}

.mobile-menu nav ul li {
    width: 100%;
    text-align: center;
    padding: 15px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    white-space: nowrap;
}

.mobile-menu nav ul li:last-child {
    border-bottom: none;
}

.mobile-menu nav a {
    display: block;
    font-size: 1.1rem;
    color: #333;
}

.mobile-menu nav ul li:last-child a {
    display: inline;
}

.mobile-menu nav .nav-contact-btn {
    display: inline-block;
    margin: 10px 0;
}

/* ヒーローセクション */
.hero {
    height: 90vh;
    min-height: 700px;
    background: #fafafa;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 64px 0 0;
    position: relative;
    overflow: hidden;
    width: 100%;
}

.hero-image {
    width: 50%;
    max-width: 600px;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    z-index: 10;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
}

.hero-content {
    width: 50%;
    max-width: 550px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding-right: 40px;
    z-index: 10;
}

.hero h1 {
    font-size: 3.2rem;
    margin-bottom: 30px;
    font-weight: 800;
    line-height: 1.25;
    background: linear-gradient(45deg, var(--primary-color), #ff9800);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -1px;
}

.hero p {
    font-size: 1.4rem;
    margin-bottom: 50px;
    opacity: 0.8;
    max-width: 700px;
    font-weight: 500;
}

.cta-button {
    display: inline-block;
    padding: 18px 45px;
    background: linear-gradient(45deg, var(--primary-color), #ff8f00);
    color: var(--white);
    border-radius: 50px;
    font-weight: bold;
    font-size: 1.1rem;
    box-shadow: 0 10px 25px rgba(255, 102, 0, 0.3);
    transition: var(--transition);
    align-self: flex-start;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(255, 102, 0, 0.4);
}

/* セクションタイトル */
.section-title {
    text-align: center;
    font-size: 2.8rem;
    margin-bottom: 4rem;
    color: #1a1a1a;
    position: relative;
    font-weight: 700;
    letter-spacing: -0.03em;
}

.section-title span {
    background: linear-gradient(135deg, var(--primary-color) 0%, #ff8800 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-title::after {
    display: none;
}

/* アプリ紹介セクション */
.apps {
    padding: 100px 0;
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
}

/* フィーチャーアプリ（2カラムレイアウト） */
.featured-app {
    display: flex;
    gap: 80px;
    align-items: center;
    margin-bottom: 0;
    padding: 0;
    background: transparent;
    border-radius: 0;
    box-shadow: none;
}

.featured-app-visual {
    flex: 0 0 60%;
    max-width: 60%;
    display: flex;
    justify-content: flex-start;
    align-items: center;
}

.featured-app-visual img {
    width: 100%;
    max-width: 100%;
    height: auto;
    border-radius: 0;
    box-shadow: none;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.06));
}

.featured-app-content {
    flex: 0 0 40%;
    max-width: 40%;
    display: flex;
    flex-direction: column;
    gap: 20px;
    align-items: flex-start;
    justify-content: center;
}

.featured-app-icon {
    width: 80px;
    height: 80px;
}

.featured-app-icon img {
    width: 100%;
    height: 100%;
    border-radius: 18px;
    box-shadow: none;
}

.featured-app-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0;
    letter-spacing: 0;
}

.store-links {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}

.store-link {
    transition: all 0.3s ease;
}

.store-link:hover {
    transform: translateY(-2px);
}

.store-link img {
    height: 45px;
    width: 150px;
    display: block;
    object-fit: contain;
}

.featured-app-description {
    font-size: 1rem;
    line-height: 1.8;
    color: #444;
    margin: 0;
}

/* キャッチコピー部分を強調 */
.featured-app-description .catchcopy {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1a1a1a;
    display: block;
    margin-bottom: 4px;
}

/* キャッチコピー部分（最初の1行）を強調 */
.featured-app-description br:first-of-type {
    display: none;
}

.featured-app-link {
    display: inline-flex;
    align-items: center;
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-color);
    transition: all 0.3s ease;
    text-decoration: none;
    margin-top: 10px;
}

.featured-app-link:hover {
    color: #ff8800;
    transform: translateX(4px);
}

/* その他のアプリセクション */
.other-apps-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 40px;
    text-align: center;
}

.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.app-card {
    background: var(--white);
    border: 1px solid #eee;
    border-radius: 10px;
    padding: 30px;
    transition: var(--transition);
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.app-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.app-icon {
    width: 80px;
    height: 80px;
    /* background-color: var(--light-bg); 不要な背景色を削除 */
    /* border-radius: 12px; 画像側で角丸を制御するため削除 */
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    /* font-size: 1.5rem; 絵文字用スタイル削除 */
    /* color: var(--primary-color); 絵文字用スタイル削除 */
}

.app-card h3 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

.app-card p {
    color: #666;
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.app-link {
    color: var(--accent-color);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
}

.app-link:after {
    content: '→';
    margin-left: 5px;
    transition: var(--transition);
}

.app-link:hover:after {
    margin-left: 10px;
}

/* データ分析セクション */
.data-analysis {
    padding: 100px 0;
    background: linear-gradient(180deg, #f8f9fa 0%, #ffffff 100%);
}

.analysis-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.analysis-text {
    flex: 1;
}

.analysis-image {
    flex: 1;
    background-color: #ddd; /* プレースホルダー */
    height: 300px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #888;
}

.analysis-text h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.analysis-text ul {
    margin-top: 20px;
}

.analysis-text li {
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}

.analysis-text li:before {
    content: '✓';
    color: var(--accent-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* 会社概要セクション - Vertical Modern Minimalist Design */
.about {
    padding: 80px 0;
    background: #ffffff;
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

/* ヘッダーエリア：ロゴ・由来・代表者 */
.about-header {
    text-align: center;
    margin-bottom: 50px;
    padding: 30px 40px;
}

.company-logo {
    height: 150px;
    width: auto;
    margin: 0 auto 25px;
    display: block;
}

.company-origin {
    font-size: 18px;
    color: #444;
    font-weight: 400;
    line-height: 1.8;
    margin-bottom: 20px;
    letter-spacing: 0.05em;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.representative {
    font-size: 18px;
    color: #444;
    font-weight: 400;
    margin-top: 20px;
}

.established-date {
    font-size: 18px;
    color: #444;
}

/* ビジョン：再構成 */
.about-vision-vertical {
    text-align: left;
    margin-bottom: 50px;
    padding: 30px 0;
}

.vision-label {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: 0.4em;
    text-transform: uppercase;
    margin-bottom: 12px;
    position: relative;
    display: inline-block;
}

.vision-label::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--primary-color);
}

.vision-message {
    font-size: 2.24rem;
    font-weight: 800;
    color: #333;
    margin: 0;
    line-height: 1.4;
    letter-spacing: 0.05em;
}

/* 事業内容：縦並び */
.about-services-vertical {
    padding: 30px 0;
    text-align: left;
}

.services-label {
    font-size: 1.1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.4em;
    color: var(--primary-color);
    margin-bottom: 30px;
    position: relative;
    display: inline-block;
}

.services-label::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--primary-color);
}

.services-list {
    text-align: left;
}

.service-item-vertical {
    margin-bottom: 35px;
}

.service-item-vertical:last-child {
    margin-bottom: 0;
}

.service-item-vertical h5 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 8px;
    letter-spacing: normal;
    display: flex;
    align-items: center;
}

.service-dot {
    display: inline-block;
    width: 6px;
    height: 6px;
    background: var(--primary-color);
    border-radius: 50%;
    margin-right: 12px;
    flex-shrink: 0;
}

.service-item-vertical p {
    font-size: 1rem;
    line-height: 1.8;
    color: #444;
    font-weight: 400;
    margin-left: 18px;
}

/* 会社情報セクション */
.about-company-info {
    padding: 30px 0;
    text-align: left;
}

.company-info-label {
    font-size: 1.1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.4em;
    color: var(--primary-color);
    margin-bottom: 30px;
    position: relative;
    display: inline-block;
}

.company-info-label::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--primary-color);
}

.company-info-content {
    max-width: 800px;
    margin: 0;
    text-align: left;
}

.company-info-item {
    font-size: 18px;
    color: #444;
    margin-bottom: 15px;
    line-height: 1.8;
}

.company-info-item strong {
    font-weight: 600;
    color: #333;
}

.company-origin-text {
    font-size: 18px;
    color: #444;
    line-height: 1.8;
    margin-top: 25px;
}

/* 代表者SNSリンク */
.representative-social-links {
    display: inline-flex;
    gap: 8px;
    margin-left: 12px;
    align-items: center;
    vertical-align: middle;
}

.representative-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255, 102, 0, 0.1);
    color: var(--primary-color);
    transition: all 0.3s ease;
    text-decoration: none;
}

.representative-icon:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.representative-icon svg,
.representative-icon img {
    width: 20px;
    height: 20px;
    display: block;
}

.representative-icon img {
    border-radius: 4px;
}

/* 旧デザインのスタイルを無効化 */
.about-divider,
.about-vision,
.about-business,
.about-vision-modern,
.about-services {
    display: none;
}

/* プレスリリースセクション */
.press {
    padding: 80px 0;
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
}

.press-content {
    max-width: 900px;
    margin: 0 auto;
}

.press-intro {
    text-align: center;
    font-size: 1rem;
    color: #666;
    margin-bottom: 50px;
}

.press-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.press-item-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.press-item {
    background: white;
    padding: 30px;
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
    transition: all 0.3s ease;
}

.press-item-link:hover .press-item {
    transform: translateX(4px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.press-date {
    font-size: 0.85rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 10px;
    letter-spacing: 0.05em;
}

.press-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 10px;
    line-height: 1.4;
}

.press-description {
    font-size: 0.95rem;
    line-height: 1.7;
    color: #666;
}

/* プレスリリース一覧へのリンク */
.press-view-all {
    text-align: center;
    margin-top: 40px;
}

.press-view-all-btn {
    display: inline-block;
    padding: 15px 40px;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(111, 90, 255, 0.2);
}

.press-view-all-btn:hover {
    background: #5a46cc;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(111, 90, 255, 0.3);
}

/* プレスリリース詳細ページ */
.press-detail {
    padding: 140px 0 80px;
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
    min-height: 70vh;
}

.press-detail-content {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 60px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.press-detail-date {
    font-size: 0.9rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: 0.05em;
}

.press-detail-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 40px;
    line-height: 1.3;
    border-bottom: 3px solid var(--primary-color);
    padding-bottom: 20px;
}

.press-detail-body {
    font-size: 1.1rem;
    line-height: 2;
    color: #333;
    margin-bottom: 60px;
}

.press-detail-body p {
    margin-bottom: 1.5em;
}

.press-detail-body p + ul {
    margin-top: -0.8em;
}

.press-detail-body ul {
    margin-bottom: 1.5em;
}

.press-detail-body ul li {
    margin-bottom: 0.5em;
}

.back-to-list {
    display: inline-flex;
    align-items: center;
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-color);
    transition: all 0.3s ease;
    text-decoration: none;
}

.back-to-list:hover {
    color: #ff8800;
    transform: translateX(-4px);
}

/* お問い合わせフォーム */
.contact {
    padding: 100px 0;
    background: linear-gradient(180deg, #f8f9fa 0%, #ffffff 100%);
}

.contact p {
    text-align: center;
    margin-bottom: 40px;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: var(--white);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(255, 102, 0, 0.1);
}

.submit-button {
    display: block;
    width: 100%;
    padding: 15px;
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 30px; /* 丸みのあるボタン */
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 30px;
}

.submit-button:hover {
    background-color: #e65c00;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 102, 0, 0.3);
}

/* フッター */
footer {
    background: linear-gradient(135deg, #ff6600 0%, #ff7a1f 100%);
    color: var(--white);
    padding: 20px 0 10px;
    text-align: center;
}

.footer-links-row {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.footer-links {
    display: flex;
    gap: 30px;
}

.footer-links a {
    opacity: 0.85;
    font-weight: 500;
    font-size: 0.95rem;
    transition: opacity 0.2s ease;
}

.footer-links a:hover {
    opacity: 1;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    transition: all 0.3s ease;
}

.social-icon:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
}

.social-icon svg {
    width: 24px;
    height: 24px;
}

.copyright {
    opacity: 0.7;
    font-size: 0.85rem;
    border-top: 1px solid rgba(255,255,255,0.15);
    padding-top: 8px;
    margin-top: 8px;
    font-weight: 400;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    /* 基本設定 - 長い単語も適切に改行 */
    body {
        word-break: break-word;
        overflow-wrap: break-word;
    }

    /* セクションタイトル */
    .section-title {
        font-size: 2rem;
        line-height: 1.3;
    }

    /* ヒーローセクション - スマホ縦積みレイアウト */
    .hero {
        flex-direction: column-reverse;
        height: auto;
        padding: 120px 20px 40px;
        text-align: center;
        width: 100%;
        min-height: auto;
    }

    .hero h1 {
        font-size: 2.5rem;
        line-height: 1.2;
    }

    .hero p {
        font-size: 1rem;
        line-height: 1.6;
    }

    .hero-content {
        width: 100%;
        max-width: 100%;
        padding: 0;
        padding-right: 0;
        margin-left: 0;
        align-items: center;
        text-align: center;
    }

    .hero-image {
        width: 100%;
        max-width: 400px;
        margin: 0 auto 30px;
        padding-right: 0;
    }

    /* モダンヒーロータイポグラフィ */
    .hero-title-modern {
        font-size: 2.5rem;
        line-height: 1.2;
    }

    .hero-subtitle-modern {
        font-size: 1rem;
        line-height: 1.6;
    }

    /* ヒーローセクションのお問い合わせボタンを非表示 */
    .cta-button-modern {
        display: none !important;
    }

    /* ヘッダー - モバイルレイアウト */
    header .container {
        flex-direction: row;
        justify-content: center;
        align-items: center;
        height: 64px;
        padding: 15px 20px;
        position: relative;
    }

    .logo {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    }

    /* デスクトップナビゲーションを非表示 */
    header nav {
        display: none;
    }

    /* ハンバーガーメニューボタンを表示 */
    .mobile-menu-toggle {
        display: flex;
        position: absolute;
        right: 20px;
    }

    /* モバイルメニューを表示可能に */
    .mobile-menu {
        display: block;
    }

    /* アプリカード */
    .app-card h3 {
        font-size: 1.1rem;
    }

    .app-card p {
        font-size: 0.9rem;
        line-height: 1.6;
    }

    /* アプリ詳細ページ */
    .app-detail-hero h1 {
        font-size: 2rem;
        line-height: 1.2;
    }

    .app-intro {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 20px;
    }

    .app-description {
        font-size: 0.95rem;
        line-height: 1.7;
    }

    /* フィーチャーアプリ - レスポンシブ */
    .featured-app {
        flex-direction: column;
        padding: 0;
        gap: 25px;
        margin-bottom: 0;
    }

    .featured-app-visual {
        flex: 0 0 100%;
        max-width: 100%;
        width: 100%;
        order: 2;
    }

    .featured-app-visual img {
        max-width: 250px;
        margin: 0 auto;
    }

    .featured-app-content {
        flex: 0 0 100%;
        max-width: 100%;
        gap: 15px;
        text-align: left;
        order: 1;
    }

    /* アプリアイコンとタイトルを横並び */
    .featured-app-header {
        display: flex !important;
        align-items: center;
        gap: 15px;
        margin-bottom: 10px;
    }

    .featured-app-icon {
        width: 60px;
        height: 60px;
        flex-shrink: 0;
        margin: 0;
    }

    .featured-app-title {
        font-size: 1.2rem;
        margin: 0;
        flex: 1;
    }

    /* ストアリンク */
    .store-links {
        gap: 12px;
        margin-bottom: 15px;
    }

    .store-link img {
        height: 40px;
        width: 135px;
    }

    /* 説明文 */
    .featured-app-description {
        font-size: 0.95rem;
        line-height: 1.7;
        margin-bottom: 20px;
    }

    .featured-app-description .catchcopy {
        font-size: 1.05rem;
    }

    .other-apps-title {
        font-size: 1.5rem;
        margin-bottom: 30px;
    }

    /* アプリ紹介セクション */
    .apps {
        padding: 80px 0 60px;
    }

    /* Bentoグリッド */
    .bento-grid-apps {
        grid-template-columns: 1fr;
    }

    .bento-large {
        grid-column: span 1;
    }

    /* スマホ表示：アイコンとアプリ名を横並び */
    .bento-app-card {
        display: grid !important;
        grid-template-columns: auto 1fr;
        grid-template-rows: auto auto auto;
        gap: 0 15px;
        align-items: start;
        padding: 24px;
    }
    
    .bento-app-icon {
        grid-column: 1;
        grid-row: 1;
        width: 60px !important;
        height: 60px !important;
        margin: 0 !important;
        margin-bottom: 0 !important;
    }

    .bento-app-card h3 {
        grid-column: 2;
        grid-row: 1;
        font-size: 1.2rem;
        line-height: 1.3;
        margin: 0 !important;
        margin-bottom: 0 !important;
        align-self: center;
    }

    .bento-app-card p {
        grid-column: 1 / -1;
        grid-row: 2;
        font-size: 0.9rem;
        line-height: 1.6;
        margin-top: 15px;
    }
    
    .bento-app-link {
        grid-column: 1 / -1;
        grid-row: 3;
    }

    /* スクリーンショット・機能グリッド */
    .screenshots-features-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .feature-box h3 {
        font-size: 1.2rem;
        line-height: 1.3;
    }

    .feature-box p {
        font-size: 0.95rem;
        line-height: 1.6;
    }

    /* About Us - Vertical Modern Minimalist Design */
    .about {
        padding: 80px 0 60px;
    }

    .about-header {
        margin-bottom: 40px;
        padding: 20px 0;
    }

    .company-logo {
        height: 60px;
        margin-bottom: 20px;
    }

    .company-origin {
        font-size: 15px;
        line-height: 1.9;
        letter-spacing: 0.03em;
    }

    .representative {
        font-size: 1.05rem;
    }

    .about-vision-vertical {
        margin-bottom: 40px;
        padding: 20px 0;
    }

    .vision-label {
        font-size: 1.1rem;
        margin-bottom: 10px;
    }

    .vision-label::after {
        width: 25px;
        bottom: -5px;
    }

    .vision-message {
        font-size: 1.8rem;
        line-height: 1.3;
    }

    .about-services-vertical {
        padding: 20px 0;
    }

    .services-label {
        font-size: 1.1rem;
        margin-bottom: 25px;
    }

    .services-label::after {
        width: 25px;
        bottom: -5px;
    }

    .service-item-vertical {
        margin-bottom: 30px;
    }

    .service-item-vertical h5 {
        font-size: 1.2rem;
    }

    .service-item-vertical p {
        font-size: 1rem;
    }

    /* AI & Data Analysisセクションをスマホで非表示 */
    .data-analysis {
        display: none;
    }

    /* プレスリリース */
    .press {
        padding: 80px 0 60px;
    }

    .press-intro {
        font-size: 0.95rem;
        margin-bottom: 35px;
    }

    .press-item {
        padding: 25px 20px;
    }

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

    .press-description {
        font-size: 0.9rem;
    }

    /* プレスリリース詳細ページ */
    .press-detail {
        padding: 100px 0 60px;
    }

    .press-detail-content {
        padding: 40px 25px;
    }

    .press-detail-title {
        font-size: 1.8rem;
        margin-bottom: 30px;
        padding-bottom: 15px;
    }

    .press-detail-body {
        font-size: 1rem;
        line-height: 1.8;
        margin-bottom: 40px;
    }

    .back-to-list {
        font-size: 0.95rem;
    }

    /* お問い合わせセクション */
    .contact {
        padding: 80px 0 60px;
    }

    .about-cards-grid {
        grid-template-columns: 1fr;
    }

    .about-card-wide {
        grid-column: span 1;
    }

    .about-card-full {
        grid-column: span 1;
    }

    .about-card-label {
        font-size: 0.75rem;
    }

    .about-card-value {
        font-size: 1rem;
        line-height: 1.5;
    }

    /* データ分析セクション */
    .analysis-content {
        flex-direction: column;
    }

    .analysis-image {
        width: 100%;
        margin-bottom: 30px;
    }

    .analysis-text h3 {
        font-size: 1.5rem;
        line-height: 1.3;
    }

    /* お問い合わせフォーム */
    .contact-form {
        padding: 30px 20px;
    }

    /* フッター */
    footer {
        padding: 25px 0 12px;
    }

    .footer-links-row {
        flex-direction: row;
        gap: 15px;
        justify-content: center;
        align-items: center;
    }

    .footer-links {
        flex-direction: row;
        justify-content: center;
        gap: 15px;
        margin-bottom: 0;
    }

    .footer-links a {
        font-size: 0.8rem;
    }

    .social-links {
        gap: 12px;
    }

    .social-icon {
        width: 36px;
        height: 36px;
    }

    .social-icon svg {
        width: 20px;
        height: 20px;
    }

    .copyright {
        font-size: 0.75rem;
        margin-top: 12px;
    }
    }

    .social-icon {
        width: 40px;
        height: 40px;
    }

    .social-icon svg {
        width: 22px;
        height: 22px;
    }

    /* コンテナ padding 調整 */
    .container {
        padding: 0 15px;
    }

    /* 全体的なセクション padding 調整 */
    .apps,
    .data-analysis,
    .about,
    .contact {
        padding: 60px 0;
    }
}


/* �A�v���ڍ׃y�[�W */
.app-detail-hero {
    height: 60vh;
    background-size: cover;
    background-position: center;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
}

.app-detail-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5); /* Overlay */
    z-index: 1;
}

.app-detail-hero-content {
    position: relative;
    z-index: 2;
    padding: 20px;
}

.app-detail-hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    color: #fff;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.app-detail-container {
    max-width: 900px;
    margin: 4rem auto;
    padding: 0 20px;
}

.app-intro {
    display: flex;
    align-items: center;
    gap: 30px;
    margin-bottom: 3rem;
    padding: 30px;
    background: linear-gradient(135deg, rgba(255, 102, 0, 0.03) 0%, rgba(0, 188, 212, 0.03) 100%);
    border-radius: 16px;
    border-left: 4px solid var(--primary-color);
}

.app-icon-large {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    flex-shrink: 0;
}

.app-description {
    font-size: 1.05rem;
    line-height: 1.8;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin: 30px 0;
}

.feature-item {
    background: white;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: var(--transition);
    border-top: 3px solid var(--primary-color);
}

.feature-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

.feature-item-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
    display: block;
}

.feature-item h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.feature-item p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #666;
}

.app-features {
    margin-bottom: 4rem;
}

.app-features h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--secondary-color);
    padding-bottom: 10px;
}

.app-features ul {
    list-style-type: disc;
    padding-left: 20px;
    margin-bottom: 20px;
}

.app-features li {
    margin-bottom: 10px;
}

.app-screenshots {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 2rem;
}

.screenshot-placeholder {
    aspect-ratio: 9/16;
    background-color: #eee;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    color: #888;
    font-weight: bold;
    border: 2px dashed #ccc;
}

.back-link {
    display: inline-block;
    margin-top: 40px;
    color: var(--primary-color);
    font-weight: bold;
    text-decoration: underline;
}

/* ========================================
   MODERN TECH MINIMALISM DESIGN SYSTEM
   Apple / Linear inspired
   ======================================== */

/* Hero - Modern gradient mesh background */
.hero-gradient-mesh {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(at 20% 30%, rgba(255, 102, 0, 0.15) 0px, transparent 50%),
        radial-gradient(at 80% 70%, rgba(0, 188, 212, 0.15) 0px, transparent 50%),
        radial-gradient(at 50% 50%, rgba(255, 153, 51, 0.08) 0px, transparent 50%);
    background-size: 200% 200%;
    animation: meshGradientMove 20s ease infinite;
    z-index: 0;
    filter: blur(60px);
}

@keyframes meshGradientMove {
    0%, 100% {
        background-position: 0% 0%, 100% 100%, 50% 50%;
    }
    25% {
        background-position: 100% 0%, 0% 100%, 40% 60%;
    }
    50% {
        background-position: 100% 100%, 0% 0%, 60% 40%;
    }
    75% {
        background-position: 0% 100%, 100% 0%, 50% 50%;
    }
}

/* Hero - Modern typography */
.hero-title-modern {
    font-size: 4.8rem; /* 1.5x larger */
    margin-bottom: 30px;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.04em; /* Tighter tracking */
    background: linear-gradient(135deg, #1a1a1a 0%, #424242 50%, #666 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle-modern {
    font-size: 1.35rem;
    margin-bottom: 50px;
    color: #666;
    max-width: 700px;
    font-weight: 400;
    line-height: 1.6;
}

.cta-button-modern {
    display: inline-block;
    padding: 16px 40px;
    background: rgba(255, 102, 0, 0.95);
    color: var(--white);
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    box-shadow: 0 4px 20px rgba(255, 102, 0, 0.25);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    align-self: flex-start;
    backdrop-filter: blur(10px);
}

.cta-button-modern:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(255, 102, 0, 0.35);
    background: rgba(255, 102, 0, 1);
}

.hero-img-float {
    animation: heroImageFloat 6s ease-in-out infinite;
}

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

/* Bento Grid Layout for Apps */
.bento-grid-apps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    grid-auto-flow: dense;
}

.bento-app-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 20px;
    padding: 32px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
    position: relative;
    overflow: hidden;
    display: block;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
}

.bento-app-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top left, rgba(255, 102, 0, 0.08), transparent 60%);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 0;
}

.bento-app-card:hover::before {
    opacity: 1;
}

.bento-app-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(255, 102, 0, 0.15);
    border-color: rgba(255, 102, 0, 0.2);
}

.bento-large {
    grid-column: span 2;
}

.bento-app-icon {
    width: 70px;
    height: 70px;
    margin-bottom: 20px;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 1;
}

.bento-app-card:hover .bento-app-icon {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 12px 28px rgba(255, 102, 0, 0.25);
}

.bento-app-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.bento-app-card h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: #1a1a1a;
    letter-spacing: -0.02em;
    position: relative;
    z-index: 1;
}

.bento-app-card p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #666;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.bento-app-link {
    display: inline-flex;
    align-items: center;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-color);
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.bento-app-link:hover {
    color: #ff8800;
    transform: translateX(4px);
}

/* About Us - Card Grid with AI Network Background */
.about {
    position: relative;
    overflow: hidden;
}

.about-network-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        repeating-linear-gradient(0deg, transparent, transparent 100px, rgba(255, 102, 0, 0.02) 100px, rgba(255, 102, 0, 0.02) 101px),
        repeating-linear-gradient(90deg, transparent, transparent 100px, rgba(255, 102, 0, 0.02) 100px, rgba(255, 102, 0, 0.02) 101px);
    animation: networkPulse 8s ease-in-out infinite;
    opacity: 0.6;
    z-index: 0;
}

@keyframes networkPulse {
    0%, 100% {
        opacity: 0.4;
    }
    50% {
        opacity: 0.7;
    }
}

.about .container {
    position: relative;
    z-index: 1;
}

.about-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    max-width: 1000px;
    margin: 0 auto;
}

.about-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: 28px;
    border-radius: 16px;
    border: 1px solid rgba(255, 102, 0, 0.1);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.about-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(255, 102, 0, 0.12);
    border-color: rgba(255, 102, 0, 0.3);
}

.about-card-wide {
    grid-column: span 2;
}

.about-card-full {
    grid-column: span 3;
}

.about-card-label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.about-card-value {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1a1a1a;
    line-height: 1.6;
}

/* Scroll Reveal Animation */
.reveal-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Feature Graphic Section */
.feature-graphic-section {
    padding: 60px 20px;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.feature-graphic-container {
    position: relative;
    animation: featureSlideIn 1s ease-out;
    opacity: 0;
    animation-fill-mode: forwards;
}

@keyframes featureSlideIn {
    0% {
        opacity: 0;
        transform: translateY(40px) scale(0.95);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.feature-graphic-container img {
    max-width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-graphic-container:hover img {
    transform: translateY(-8px);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.2);
}

/* Screenshots and Features Layout */
.screenshots-features-section {
    padding: 80px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.screenshots-features-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: start;
}

.screenshots-column {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

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

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

.features-column {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.feature-box {
    background: white;
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    border-left: 4px solid;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
    transform: translateX(30px);
}

.feature-box.visible {
    opacity: 1;
    transform: translateX(0);
}

.feature-box:hover {
    transform: translateX(-8px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.feature-box h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-box p {
    font-size: 1rem;
    line-height: 1.7;
    color: #666;
}