/* ==========================================
   リセット & 基本設定
   ========================================== */

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

:root {
    /* カラーパレット */
    --primary-color: #2c5f7d;
    --secondary-color: #e8964e;
    --accent-color: #d97642;
    --dark-color: #1a1a1a;
    --light-color: #f8f9fa;
    --text-color: #333333;
    --text-light: #666666;
    --border-color: #e0e0e0;
    --white: #ffffff;
    
    /* タイポグラフィ */
    --font-primary: 'Noto Sans JP', sans-serif;
    --font-heading: 'Playfair Display', serif;
    
    /* スペーシング */
    --section-padding: 80px 0;
    --container-padding: 0 20px;
    
    /* トランジション */
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--text-color);
    line-height: 1.8;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
}

section {
    padding: var(--section-padding);
}

/* ==========================================
   ヘッダー & ナビゲーション
   ========================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: var(--transition);
}

.navbar {
    padding: 1rem 0;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.logo i {
    font-size: 1.8rem;
    color: var(--secondary-color);
}

.logo:hover {
    color: var(--secondary-color);
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: var(--transition);
}

.nav-menu a:hover {
    color: var(--secondary-color);
}

.nav-menu a:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 3px;
    transition: var(--transition);
}

/* ==========================================
   ヒーローセクション
   ========================================== */

.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #2c5f7d;
    overflow: hidden;
}

.hero-background-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(44, 95, 125, 0.5) 0%, rgba(26, 68, 88, 0.5) 100%);
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.2);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: var(--white);
    animation: fadeInUp 1s ease;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    text-shadow: 3px 3px 8px rgba(0, 0, 0, 0.6);
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.6);
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--white);
    font-size: 2rem;
    animation: bounce 2s infinite;
}

/* ==========================================
   ボタン
   ========================================== */

.btn {
    display: inline-block;
    padding: 14px 32px;
    text-decoration: none;
    font-weight: 600;
    border-radius: 50px;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
}

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

/* ==========================================
   特徴セクション
   ========================================== */

.features {
    background: var(--light-color);
    padding: 60px 0;
}

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

.feature-card {
    background: var(--white);
    padding: 2.5rem 2rem;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--white);
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

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

/* ==========================================
   セクションヘッダー
   ========================================== */

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--secondary-color), var(--accent-color));
    border-radius: 2px;
}

.section-subtitle {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--secondary-color);
    font-weight: 600;
    letter-spacing: 2px;
    margin-top: 1rem;
}

/* ==========================================
   会社概要セクション
   ========================================== */

.about {
    background: var(--white);
}

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

.about-text h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.about-text p {
    margin-bottom: 1.5rem;
    color: var(--text-color);
    line-height: 1.9;
}

.company-info {
    margin-top: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    padding: 1.5rem;
    background: var(--light-color);
    border-radius: 10px;
    transition: var(--transition);
}

.info-item:hover {
    background: #e9ecef;
    transform: translateX(10px);
}

.info-item i {
    font-size: 1.8rem;
    color: var(--secondary-color);
    min-width: 30px;
}

.info-item strong {
    display: block;
    color: var(--primary-color);
    margin-bottom: 0.3rem;
    font-size: 1.1rem;
}

.info-item p {
    margin: 0;
    color: var(--text-color);
}

/* 代表者紹介 */
.representative-section {
    margin-top: 3rem;
    padding-top: 3rem;
    border-top: 2px solid var(--light-color);
}

.representative-content {
    display: flex;
    gap: 3rem;
    align-items: center;
    background: linear-gradient(135deg, rgba(44, 95, 125, 0.05), rgba(232, 150, 78, 0.05));
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

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

.representative-image img {
    width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    transition: var(--transition);
}

.representative-image img:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.2);
}

.representative-text {
    flex: 1;
}

.representative-text h4 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 700;
}

.representative-text h4 i {
    color: var(--secondary-color);
    margin-right: 0.5rem;
}

.representative-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 1rem;
}

.representative-name span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-light);
    margin-left: 0.5rem;
}

.representative-description {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-light);
}

.about-image {
    position: relative;
}

.image-placeholder {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 20px;
    padding: 4rem 2rem;
    text-align: center;
    color: var(--white);
    min-height: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.image-placeholder i {
    font-size: 5rem;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.image-placeholder p {
    font-size: 1.3rem;
    line-height: 1.6;
    font-weight: 500;
}

/* ==========================================
   出版についてセクション
   ========================================== */

.publishing {
    background: var(--white);
    padding: 80px 0 60px;
}

.publishing-section {
    margin-bottom: 4rem;
}

.publishing-section.alt-bg {
    background: var(--light-color);
    padding: 3rem 0;
    margin-left: -20px;
    margin-right: -20px;
    padding-left: 20px;
    padding-right: 20px;
    border-radius: 15px;
}

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

.publishing-subtitle {
    font-size: 2rem;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.publishing-intro {
    text-align: center;
    font-size: 1.05rem;
    line-height: 2;
    color: var(--text-color);
    margin-bottom: 3rem;
}

.publishing-quote {
    text-align: center;
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    font-style: italic;
}

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

.pub-card {
    background: var(--light-color);
    padding: 2rem 1.5rem;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.pub-card:hover {
    border-color: var(--secondary-color);
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.pub-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 2rem;
    color: var(--white);
}

.pub-card h4 {
    font-size: 1.2rem;
    color: var(--primary-color);
    font-weight: 600;
}

.merit-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.merit-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    padding: 1.5rem;
    background: var(--white);
    border-radius: 12px;
    transition: var(--transition);
}

.merit-item:hover {
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transform: translateX(10px);
}

.merit-icon {
    flex-shrink: 0;
}

.merit-icon i {
    font-size: 2.5rem;
    color: var(--secondary-color);
}

.merit-text h4 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.merit-text p {
    color: var(--text-light);
    line-height: 1.7;
}

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

.support-card {
    background: var(--light-color);
    padding: 2.5rem 2rem;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.support-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transform: translateY(-8px);
}

.support-icon {
    width: 70px;
    height: 70px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: var(--white);
}

.support-card h4 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 700;
}

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

/* ==========================================
   Mission & Vision セクション
   ========================================== */

.mission-vision {
    background: linear-gradient(135deg, #2c5f7d 0%, #1a4458 100%);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.mission-vision::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><circle cx="100" cy="100" r="80" fill="rgba(255,255,255,0.03)"/><circle cx="900" cy="400" r="120" fill="rgba(255,255,255,0.03)"/><circle cx="1100" cy="150" r="60" fill="rgba(255,255,255,0.03)"/></svg>') no-repeat;
    opacity: 0.5;
}

.mission-vision-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    position: relative;
    z-index: 1;
}

.mission-box,
.vision-box {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 3rem 2.5rem;
    text-align: center;
    color: #ffffff;
    transition: all 0.3s ease;
}

.mission-box:hover,
.vision-box:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.mv-icon {
    width: 80px;
    height: 80px;
    background: #e8964e;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    color: #ffffff;
}

.mv-title {
    font-family: 'Playfair Display', serif;
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 3px;
    margin-bottom: 2rem;
    color: #e8964e;
}

.mv-content {
    font-size: 1.1rem;
    line-height: 2;
    color: #ffffff;
}

.mv-content p {
    margin-bottom: 1.5rem;
}

.vision-circles {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin: 2rem 0;
    flex-wrap: nowrap;
}

.vision-circle {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    background: linear-gradient(135deg, #e8964e, #f5b87a);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 20px rgba(232, 150, 78, 0.3);
    transition: all 0.3s ease;
}

.vision-circle:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 12px 30px rgba(232, 150, 78, 0.5);
}

.vision-circle span {
    font-size: 1.1rem;
    font-weight: 700;
    color: #ffffff;
    text-align: center;
    line-height: 1.4;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.vision-description {
    font-size: 1.05rem;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.95);
    margin-top: 1.5rem;
}

/* ==========================================
   書籍紹介セクション
   ========================================== */

.books {
    background: var(--light-color);
}

.books-categories {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.category-btn {
    padding: 10px 24px;
    background: var(--white);
    border: 2px solid var(--border-color);
    border-radius: 50px;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-color);
    transition: var(--transition);
}

.category-btn:hover,
.category-btn.active {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.book-card {
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.book-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.book-cover {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 4rem;
    position: relative;
    overflow: hidden;
}

.book-cover-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    position: absolute;
    top: 0;
    left: 0;
    background: var(--white);
}

.book-info {
    padding: 1.8rem;
}

.book-category {
    display: inline-block;
    padding: 5px 15px;
    background: var(--light-color);
    color: var(--primary-color);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 1rem;
}

.book-title {
    font-size: 1.4rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 700;
    line-height: 1.4;
}

.book-author {
    color: var(--text-color);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.book-date {
    color: var(--text-light);
    font-size: 0.85rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 6px;
}

.book-date i {
    color: var(--secondary-color);
}

.book-description {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.7;
    font-size: 0.95rem;
}

.book-link {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.book-link:hover {
    color: var(--accent-color);
    gap: 12px;
}

/* ==========================================
   著者の声セクション
   ========================================== */

.author-voices {
    background: linear-gradient(135deg, rgba(44, 95, 125, 0.03), rgba(232, 150, 78, 0.03));
    padding: 80px 0;
}

.voices-intro {
    text-align: center;
    font-size: 1.1rem;
    color: #6c757d;
    max-width: 700px;
    margin: 0 auto 3rem;
}

.voices-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.voice-card {
    background: #ffffff;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    position: relative;
    border: 2px solid transparent;
}

.voice-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
    border-color: #e8964e;
}

.voice-icon {
    font-size: 2.5rem;
    color: #e8964e;
    margin-bottom: 1.5rem;
    opacity: 0.3;
}

.voice-text {
    font-size: 1.05rem;
    line-height: 1.9;
    color: #333333;
    margin-bottom: 2rem;
    font-style: italic;
    position: relative;
}

.voice-author {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-top: 1.5rem;
    border-top: 2px solid #f8f9fa;
}

.voice-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #2c5f7d, #e8964e);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 2rem;
    flex-shrink: 0;
}

.voice-info {
    flex: 1;
}

.voice-name {
    font-weight: 700;
    color: #2c5f7d;
    margin: 0;
    font-size: 1rem;
}

/* ==========================================
   活動紹介セクション
   ========================================== */

.activities {
    background: var(--white);
}

.activities-intro {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto 3rem;
}

.activities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.activity-card {
    background: var(--light-color);
    padding: 2.5rem 2rem;
    border-radius: 15px;
    transition: var(--transition);
    border: 2px solid transparent;
}

.activity-card:hover {
    border-color: var(--secondary-color);
    background: var(--white);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.activity-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--white);
    margin-bottom: 1.5rem;
}

.activity-card h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.activity-card p {
    color: var(--text-color);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.activity-features {
    list-style: none;
}

.activity-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 0.8rem;
    color: var(--text-light);
}

.activity-features i {
    color: var(--secondary-color);
    font-size: 0.9rem;
}

.activities-cta {
    text-align: center;
    margin-top: 3rem;
    padding: 3rem 2rem;
    background: linear-gradient(135deg, var(--primary-color), #1a4458);
    border-radius: 20px;
    color: var(--white);
}

.activities-cta p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

/* ==========================================
   お問い合わせセクション
   ========================================== */

.contact {
    background: var(--light-color);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: start;
}

.contact-info h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.contact-info > p {
    color: var(--text-light);
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.contact-method {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.contact-method i {
    font-size: 1.5rem;
    color: var(--secondary-color);
    min-width: 30px;
}

.contact-method strong {
    display: block;
    color: var(--primary-color);
    margin-bottom: 0.3rem;
}

.contact-method p {
    color: var(--text-color);
    margin: 0;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 45px;
    height: 45px;
    background: var(--primary-color);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1.2rem;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--secondary-color);
    transform: translateY(-5px);
}

.contact-form-wrapper {
    background: var(--white);
    padding: 3rem 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.contact-form-button {
    width: 100%;
}

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

.contact-form-button .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
    padding: 1rem 2.5rem;
}

.contact-form-button .btn i {
    font-size: 1rem;
}

.btn-large {
    font-size: 1.2rem;
    padding: 1.2rem 3rem;
}

.contact-form-wrapper iframe {
    border: none;
    width: 100%;
    min-height: 900px;
}

.contact-form {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.required {
    color: #dc3545;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form .btn {
    width: 100%;
    margin-top: 1rem;
}

/* ==========================================
   フッター
   ========================================== */

.footer {
    background: var(--dark-color);
    color: var(--white);
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2.5rem;
    margin-bottom: 2.5rem;
}

.footer-section h4 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
}

.footer-logo {
    max-width: 200px;
    width: auto;
    height: auto;
    margin: 0.5rem 0 1rem 0;
    padding: 0;
    opacity: 0.9;
    transition: var(--transition);
    display: block;
}

.footer-logo:hover {
    opacity: 1;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.8rem;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: var(--secondary-color);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* ==========================================
   アニメーション
   ========================================== */

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-15px);
    }
    60% {
        transform: translateX(-50%) translateY(-8px);
    }
}

/* ==========================================
   書籍紹介ページ専用スタイル
   ========================================== */

/* パンくずリスト */
.breadcrumb-section {
    background-color: #f8f9fa;
    padding: 15px 0;
    border-bottom: 1px solid #e0e0e0;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: #666666;
}

.breadcrumb a {
    color: #2c5f7d;
    text-decoration: none;
    transition: all 0.3s ease;
}

.breadcrumb a:hover {
    color: #e8964e;
}

.breadcrumb .separator {
    color: #cccccc;
}

.breadcrumb .current {
    color: #333333;
    font-weight: 500;
}

/* ページヒーロー */
.page-hero {
    background: linear-gradient(135deg, #2c5f7d 0%, #1a4458 100%);
    padding: 80px 0 60px;
    text-align: center;
    margin-top: 70px;
}

.page-title {
    font-size: 3rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 1rem;
    font-family: 'Playfair Display', serif;
}

.page-subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin: 0 auto;
}

/* カテゴリーフィルター */
.category-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 50px;
    padding: 30px 0;
}

.category-btn {
    background-color: #ffffff;
    color: #2c5f7d;
    border: 2px solid #2c5f7d;
    padding: 12px 30px;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.category-btn:hover {
    background-color: #2c5f7d;
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(44, 95, 125, 0.2);
}

.category-btn.active {
    background-color: #e8964e;
    border-color: #e8964e;
    color: #ffffff;
    box-shadow: 0 5px 15px rgba(232, 150, 78, 0.3);
}

/* 書籍グリッド */
.books {
    background-color: #ffffff;
    padding: 60px 0 80px;
}

.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 40px;
}

.book-card {
    background-color: #ffffff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    opacity: 1;
    transform: scale(1);
}

.book-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.book-cover {
    background: linear-gradient(135deg, #2c5f7d 0%, #e8964e 100%);
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: #ffffff;
    position: relative;
    overflow: hidden;
}

.book-cover-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    position: absolute;
    top: 0;
    left: 0;
    background: #ffffff;
}

.book-info {
    padding: 25px;
}

.book-category {
    display: inline-block;
    background-color: #f8f9fa;
    color: #2c5f7d;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.book-title {
    font-size: 1.4rem;
    color: #2c5f7d;
    margin-bottom: 12px;
    font-weight: 700;
    line-height: 1.5;
}

.book-author,
.book-date {
    font-size: 0.95rem;
    color: #666666;
    margin-bottom: 8px;
}

.book-description {
    font-size: 0.95rem;
    color: #333333;
    line-height: 1.8;
    margin: 15px 0;
}

.book-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: #e8964e;
    color: #ffffff;
    padding: 12px 25px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.book-link:hover {
    background-color: #d97642;
    transform: translateX(5px);
    box-shadow: 0 5px 15px rgba(232, 150, 78, 0.3);
}

.book-link i {
    font-size: 1.2rem;
}

/* ==========================================
   著者の声ページ専用スタイル
   ========================================== */

/* 著者の声ページ全体 */
.voices-page {
    background-color: #ffffff;
    padding: 60px 0 80px;
}

.voices-intro-text {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px;
    font-size: 1.1rem;
    color: #666666;
    line-height: 1.9;
}

/* 著者の声グリッド */
.voices-grid-page {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.voice-card-page {
    background: linear-gradient(135deg, rgba(44, 95, 125, 0.03) 0%, rgba(232, 150, 78, 0.03) 100%);
    border-radius: 20px;
    padding: 35px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.voice-card-page:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
    border-color: #e8964e;
}

/* 声のヘッダー */
.voice-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 25px;
}

.voice-icon-large {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #e8964e 0%, #d97642 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: #ffffff;
    flex-shrink: 0;
    box-shadow: 0 4px 15px rgba(232, 150, 78, 0.3);
}

.voice-meta {
    flex: 1;
}

.voice-profile {
    font-size: 1.1rem;
    font-weight: 600;
    color: #2c5f7d;
    margin-bottom: 8px;
}

.voice-rating {
    display: flex;
    gap: 5px;
    color: #ffa500;
    font-size: 1rem;
}

/* 声のコンテンツ */
.voice-content {
    margin-bottom: 20px;
}

.voice-text-page {
    font-size: 1.05rem;
    line-height: 1.9;
    color: #333333;
    margin-bottom: 15px;
    font-style: italic;
}

/* 声のフッター */
.voice-footer {
    display: flex;
    justify-content: flex-end;
}

.voice-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: #e8f5e9;
    color: #2e7d32;
    padding: 8px 18px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.voice-badge i {
    font-size: 1.1rem;
}

/* CTAセクション */
.voices-cta {
    background: linear-gradient(135deg, #2c5f7d 0%, #1a4458 100%);
    border-radius: 20px;
    padding: 60px 40px;
    text-align: center;
    margin: 60px 0;
    box-shadow: 0 10px 30px rgba(44, 95, 125, 0.2);
}

.cta-content h2 {
    font-size: 2.5rem;
    color: #ffffff;
    margin-bottom: 20px;
    font-family: 'Playfair Display', serif;
}

.cta-content p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 30px;
    line-height: 1.8;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background-color: #e8964e;
    color: #ffffff;
    padding: 18px 40px;
    border-radius: 30px;
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(232, 150, 78, 0.3);
}

.cta-button:hover {
    background-color: #d97642;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(232, 150, 78, 0.4);
}

.cta-button i {
    font-size: 1.3rem;
}

/* サポートセクション */
.support-section {
    margin-top: 60px;
}

.support-title {
    text-align: center;
    font-size: 2.5rem;
    color: #2c5f7d;
    margin-bottom: 50px;
    font-family: 'Playfair Display', serif;
}

.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.support-item {
    text-align: center;
    padding: 40px 30px;
    background-color: #f8f9fa;
    border-radius: 15px;
    transition: all 0.3s ease;
}

.support-item:hover {
    background-color: #ffffff;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

.support-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #e8964e 0%, #d97642 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-size: 2rem;
    color: #ffffff;
    box-shadow: 0 5px 20px rgba(232, 150, 78, 0.3);
}

.support-item h3 {
    font-size: 1.5rem;
    color: #2c5f7d;
    margin-bottom: 15px;
}

.support-item p {
    font-size: 1rem;
    color: #666666;
    line-height: 1.8;
}

/* ==========================================
   出版についてページ専用スタイル
   ========================================== */

/* 出版ページ全体 */
.publishing-page {
    background-color: #ffffff;
    padding: 60px 0 80px;
}

.publishing-section-page {
    margin-bottom: 80px;
}

.publishing-content-page {
    max-width: 1100px;
    margin: 0 auto;
}

.publishing-section-title {
    text-align: center;
    font-size: 2.5rem;
    color: #2c5f7d;
    margin-bottom: 30px;
    font-family: 'Playfair Display', serif;
}

.publishing-intro-page {
    text-align: center;
    font-size: 1.1rem;
    color: #666666;
    line-height: 1.9;
    margin-bottom: 50px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* 出版形態カード */
.publishing-cards-page {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

.pub-card-page {
    background: linear-gradient(135deg, rgba(44, 95, 125, 0.03) 0%, rgba(232, 150, 78, 0.03) 100%);
    border-radius: 20px;
    padding: 40px 30px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    text-align: center;
}

.pub-card-page:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
    border-color: #e8964e;
}

.pub-icon-page {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #2c5f7d 0%, #1a4458 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-size: 2.5rem;
    color: #ffffff;
    box-shadow: 0 5px 20px rgba(44, 95, 125, 0.3);
}

.pub-card-page h3 {
    font-size: 1.6rem;
    color: #2c5f7d;
    margin-bottom: 20px;
    font-weight: 700;
}

.pub-card-page > p {
    font-size: 1rem;
    color: #333333;
    line-height: 1.8;
    margin-bottom: 25px;
}

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

.pub-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
    color: #666666;
    font-size: 0.95rem;
}

.pub-features li i {
    color: #e8964e;
    font-size: 1.1rem;
}

/* メリットセクション */
.merit-section-page {
    background: linear-gradient(135deg, rgba(44, 95, 125, 0.03) 0%, rgba(232, 150, 78, 0.03) 100%);
    padding: 80px 0;
    margin: 60px 0;
    border-radius: 30px;
}

.merit-intro {
    margin-bottom: 60px !important;
}

.merit-grid-page {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

.merit-card-page {
    background-color: #ffffff;
    border-radius: 20px;
    padding: 40px 30px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    text-align: center;
}

.merit-card-page:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
    border-color: #e8964e;
}

.merit-icon-large {
    width: 90px;
    height: 90px;
    background: linear-gradient(135deg, #e8964e 0%, #d97642 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-size: 2.8rem;
    color: #ffffff;
    box-shadow: 0 5px 20px rgba(232, 150, 78, 0.4);
}

.merit-card-page h3 {
    font-size: 1.7rem;
    color: #2c5f7d;
    margin-bottom: 20px;
    font-weight: 700;
}

.merit-description {
    font-size: 1.05rem;
    color: #333333;
    line-height: 1.9;
    margin-bottom: 25px;
}

.merit-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, rgba(44, 95, 125, 0.1) 0%, rgba(232, 150, 78, 0.1) 100%);
    color: #2c5f7d;
    padding: 10px 20px;
    border-radius: 25px;
    font-size: 0.95rem;
    font-weight: 600;
}

.merit-badge i {
    color: #e8964e;
    font-size: 1.1rem;
}

/* CTAセクション */
.publishing-cta {
    background: linear-gradient(135deg, #2c5f7d 0%, #1a4458 100%);
    border-radius: 30px;
    padding: 70px 40px;
    text-align: center;
    margin-top: 80px;
    box-shadow: 0 15px 40px rgba(44, 95, 125, 0.3);
}

.publishing-cta .cta-content h2 {
    font-size: 2.8rem;
    color: #ffffff;
    margin-bottom: 20px;
    font-family: 'Playfair Display', serif;
}

.publishing-cta .cta-content p {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
    line-height: 1.8;
}

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

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 18px 40px;
    border-radius: 30px;
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.cta-primary {
    background-color: #e8964e;
    color: #ffffff;
    box-shadow: 0 5px 20px rgba(232, 150, 78, 0.4);
}

.cta-primary:hover {
    background-color: #d97642;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(232, 150, 78, 0.5);
}

.cta-secondary {
    background-color: #ffffff;
    color: #2c5f7d;
    box-shadow: 0 5px 20px rgba(255, 255, 255, 0.2);
}

.cta-secondary:hover {
    background-color: #f8f9fa;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3);
}

.cta-button i {
    font-size: 1.3rem;
}

/* ==========================================
   レスポンシブデザイン
   ========================================== */

@media (max-width: 992px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .publishing-cards {
        grid-template-columns: 1fr;
    }
    
    .support-grid {
        grid-template-columns: 1fr;
    }
    
    .mission-vision-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
        gap: 1.5rem;
        z-index: 1000;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-link {
        font-size: 1.1rem;
        padding: 0.5rem 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
    
    .books-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .books-categories {
        flex-wrap: wrap;
        gap: 0.8rem;
    }
    
    .category-btn {
        font-size: 0.9rem;
        padding: 0.6rem 1.2rem;
    }
    
    .activities-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .footer-logo {
        max-width: 180px;
        margin: 0.5rem auto 1rem;
    }
    
    .footer-links {
        justify-content: center;
    }
    
    /* 書籍ページ - タブレット対応 */
    .page-hero {
        padding: 70px 0 50px;
        margin-top: 70px;
    }
    
    .page-title {
        font-size: 2.5rem;
    }
    
    .books-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 30px;
    }
    
    /* 著者の声ページ - タブレット対応 */
    .voices-grid-page {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 35px;
    }
    
    .cta-content h2 {
        font-size: 2.2rem;
    }
    
    .support-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    /* 出版ページ - タブレット対応 */
    .publishing-section-title {
        font-size: 2.2rem;
    }
    
    .publishing-cards-page {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
    
    .merit-grid-page {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
    
    .publishing-cta .cta-content h2 {
        font-size: 2.3rem;
    }
    
    .publishing-cta .cta-content p {
        font-size: 1.15rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        min-height: 500px;
    }
    
    .hero-title {
        font-size: 1.8rem;
        line-height: 1.3;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        line-height: 1.6;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    .btn {
        width: 100%;
        text-align: center;
        padding: 0.9rem 1.5rem;
        font-size: 1rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .feature-card {
        padding: 1.5rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .section-subtitle {
        font-size: 0.9rem;
    }
    
    .publishing-subtitle {
        font-size: 1.5rem;
    }
    
    .publishing-intro {
        font-size: 0.95rem;
        line-height: 1.8;
    }
    
    .pub-card {
        padding: 1.5rem;
    }
    
    .about-text h3 {
        font-size: 1.5rem;
    }
    
    .about-text p {
        font-size: 0.95rem;
        line-height: 1.8;
    }
    
    .company-info {
        padding: 1.5rem;
    }
    
    .info-item {
        font-size: 0.9rem;
    }
    
    .representative-content {
        flex-direction: column;
        gap: 2rem;
        padding: 2rem 1.5rem;
        text-align: center;
    }
    
    .representative-image {
        width: 150px;
        margin: 0 auto;
    }
    
    .representative-text h4 {
        font-size: 1.1rem;
    }
    
    .representative-name {
        font-size: 1.3rem;
    }
    
    .representative-description {
        font-size: 0.95rem;
        line-height: 1.7;
    }
    
    .mission-vision {
        padding: 40px 0 !important;
        overflow-x: hidden;
    }
    
    .mission-vision .container {
        padding: 0 15px !important;
        max-width: 100%;
        margin: 0 auto;
    }
    
    .mission-vision-grid {
        grid-template-columns: 1fr !important;
        gap: 1.5rem;
        padding: 0;
        margin: 0 auto;
        max-width: 100%;
    }
    
    .mission-box,
    .vision-box {
        padding: 1.5rem 1rem !important;
        margin: 0 auto !important;
        border-radius: 15px;
        width: calc(100% - 0px);
        max-width: 100%;
        box-sizing: border-box;
    }
    
    .mv-icon {
        width: 55px;
        height: 55px;
        font-size: 1.6rem;
        margin-bottom: 1rem;
    }
    
    .mv-title {
        font-size: 1.2rem;
        letter-spacing: 1px;
        margin-bottom: 1.2rem;
    }
    
    .mv-content {
        padding: 0;
        width: 100%;
    }
    
    .mv-content p {
        font-size: 0.88rem;
        line-height: 1.65;
        margin-bottom: 0.8rem;
    }
    
    .vision-circles {
        gap: 0.3rem;
        margin: 1.2rem 0;
        justify-content: center;
        flex-wrap: nowrap;
        width: 100%;
        padding: 0;
    }
    
    .vision-circle {
        width: 70px;
        height: 70px;
        flex-shrink: 0;
    }
    
    .vision-circle span {
        font-size: 0.72rem;
        padding: 0 1px;
        line-height: 1.2;
    }
    
    .vision-description {
        font-size: 0.88rem;
        line-height: 1.65;
        margin-top: 1rem;
    }
    
    .book-card {
        padding: 1.5rem;
    }
    
    .book-title {
        font-size: 1.3rem;
    }
    
    .book-description {
        font-size: 0.9rem;
        line-height: 1.7;
    }
    
    .voices-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .voice-card {
        padding: 2rem 1.5rem;
    }
    
    .voice-text {
        font-size: 0.95rem;
        line-height: 1.8;
    }
    
    .voice-name {
        font-size: 0.9rem;
    }
    
    .activity-card {
        padding: 1.5rem;
    }
    
    .activity-card h3 {
        font-size: 1.4rem;
    }
    
    .contact-info h3 {
        font-size: 1.4rem;
    }
    
    .contact-method {
        font-size: 0.9rem;
    }
    
    .form-group label {
        font-size: 0.9rem;
    }
    
    .form-group input,
    .form-group textarea {
        font-size: 0.95rem;
        padding: 0.8rem;
    }
    
    /* 書籍ページ - モバイル対応 */
    .page-hero {
        padding: 60px 0 40px;
        margin-top: 70px;
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .page-subtitle {
        font-size: 1rem;
    }
    
    .category-filter {
        padding: 20px 0;
        gap: 10px;
    }
    
    .category-btn {
        padding: 8px 20px;
        font-size: 0.9rem;
    }
    
    .books-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .book-cover {
        height: 250px;
    }
    
    .book-info {
        padding: 20px;
    }
    
    .book-title {
        font-size: 1.2rem;
    }
    
    .book-description {
        font-size: 0.9rem;
    }
    
    .book-link {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    /* 著者の声ページ - モバイル対応 */
    .voices-intro-text {
        font-size: 1rem;
        margin-bottom: 40px;
    }
    
    .voices-grid-page {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .voice-card-page {
        padding: 25px;
    }
    
    .voice-header {
        gap: 15px;
    }
    
    .voice-icon-large {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
    
    .voice-profile {
        font-size: 1rem;
    }
    
    .voice-text-page {
        font-size: 0.95rem;
        line-height: 1.8;
    }
    
    .voices-cta {
        padding: 40px 25px;
        margin: 40px 0;
    }
    
    .cta-content h2 {
        font-size: 1.8rem;
    }
    
    .cta-content p {
        font-size: 1rem;
    }
    
    .cta-button {
        padding: 14px 30px;
        font-size: 1rem;
    }
    
    .support-title {
        font-size: 1.8rem;
    }
    
    .support-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .support-item {
        padding: 30px 20px;
    }
    
    .support-icon {
        width: 70px;
        height: 70px;
        font-size: 1.8rem;
    }
    
    .support-item h3 {
        font-size: 1.3rem;
    }
    
    .support-item p {
        font-size: 0.95rem;
    }
    
    /* 出版ページ - モバイル対応 */
    .publishing-section-title {
        font-size: 1.8rem;
    }
    
    .publishing-intro-page {
        font-size: 1rem;
        margin-bottom: 40px;
    }
    
    .publishing-cards-page {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .pub-card-page {
        padding: 30px 25px;
    }
    
    .pub-icon-page {
        width: 70px;
        height: 70px;
        font-size: 2rem;
    }
    
    .pub-card-page h3 {
        font-size: 1.4rem;
    }
    
    .pub-card-page > p {
        font-size: 0.95rem;
    }
    
    .merit-section-page {
        padding: 60px 20px;
        margin: 40px 0;
    }
    
    .merit-grid-page {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .merit-card-page {
        padding: 30px 25px;
    }
    
    .merit-icon-large {
        width: 75px;
        height: 75px;
        font-size: 2.3rem;
    }
    
    .merit-card-page h3 {
        font-size: 1.4rem;
    }
    
    .merit-description {
        font-size: 0.95rem;
    }
    
    .publishing-cta {
        padding: 50px 25px;
        margin-top: 60px;
    }
    
    .publishing-cta .cta-content h2 {
        font-size: 1.8rem;
    }
    
    .publishing-cta .cta-content p {
        font-size: 1rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .cta-button {
        padding: 14px 30px;
        font-size: 1rem;
        width: 100%;
        justify-content: center;
    }
}