/* ===================================
   Reset & Base Styles
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette - 新颖高级配色 */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --dark-gradient: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #4facfe;
    --text-dark: #1a1a2e;
    --text-gray: #64748b;
    --text-light: #94a3b8;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --border-color: #e2e8f0;
    
    /* Typography */
    --font-primary: 'Noto Sans JP', sans-serif;
    --font-accent: 'Outfit', sans-serif;
    
    /* Spacing */
    --section-padding: 120px 0;
    --container-padding: 0 24px;
    
    /* Transitions */
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: var(--font-primary);
    color: var(--text-dark);
    line-height: 1.7;
    background: var(--bg-white);
    overflow-x: hidden;
}

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

/* ===================================
   Hero Section
   =================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    overflow: hidden;
    padding: 100px 0 80px;
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(102, 126, 234, 0.3) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(240, 147, 251, 0.3) 0%, transparent 50%);
    z-index: 1;
}

.hero-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        repeating-linear-gradient(45deg, transparent, transparent 35px, rgba(255,255,255,.03) 35px, rgba(255,255,255,.03) 70px);
    z-index: 2;
}

.hero .container {
    position: relative;
    z-index: 3;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-content {
    color: white;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 100px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 32px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: fadeInUp 0.8s ease-out;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: #ff6b6b;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-size: 72px;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 24px;
    font-family: var(--font-primary);
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.title-line {
    display: block;
}

.title-line.highlight {
    background: linear-gradient(to right, #ffffff, #f0f0f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    line-height: 1.8;
    margin-bottom: 48px;
    opacity: 0.95;
    font-weight: 400;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-stats {
    display: flex;
    gap: 32px;
    margin-bottom: 48px;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 48px;
    font-weight: 900;
    font-family: var(--font-accent);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    opacity: 0.9;
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    background: rgba(255, 255, 255, 0.3);
}

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

/* Hero Image */
.hero-image {
    position: relative;
    animation: fadeInUp 0.8s ease-out 0.8s both;
}

.hero-card {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.3);
    transform: rotate(3deg);
    transition: var(--transition-smooth);
}

.hero-card:hover {
    transform: rotate(0deg) scale(1.02);
}

.profile-image {
    width: 100%;
    height: auto;
    display: block;
}

.card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 32px;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: white;
}

.card-overlay h3 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 4px;
}

.card-overlay p {
    font-size: 18px;
    opacity: 0.9;
}

/* Floating Cards */
.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 16px 24px;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    color: var(--text-dark);
    animation: float 3s ease-in-out infinite;
}

.floating-card .mini-icon {
    font-size: 24px;
    color: var(--primary-color);
}

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

.floating-card.card-2 {
    bottom: 30%;
    left: -15%;
    animation-delay: 1s;
}

.floating-card.card-3 {
    bottom: 10%;
    right: -5%;
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* ===================================
   CTA Button
   =================================== */
.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 20px 40px;
    background: white;
    color: var(--primary-color);
    border: none;
    border-radius: 16px;
    font-size: 18px;
    font-weight: 700;
    font-family: var(--font-primary);
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

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

.cta-button:hover::before {
    left: 100%;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.cta-button:active {
    transform: translateY(0);
}

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

.button-arrow {
    font-size: 16px;
    transition: transform 0.3s;
}

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

/* Promo Text */
.promo-text {
    margin-top: 20px;
    padding: 16px 24px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: white;
    font-size: 15px;
    font-weight: 500;
    line-height: 1.6;
    text-align: center;
    animation: fadeInUp 0.8s ease-out 1s both;
}

/* ===================================
   Section Headers
   =================================== */
.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-label {
    display: inline-block;
    padding: 8px 20px;
    background: var(--primary-gradient);
    color: white;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 20px;
    font-family: var(--font-accent);
}

.section-title {
    font-size: 48px;
    font-weight: 900;
    color: var(--text-dark);
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-description {
    font-size: 18px;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* ===================================
   About Section
   =================================== */
.about {
    padding: var(--section-padding);
    background: var(--bg-light);
}

.about-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-text h3 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-dark);
}

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

.signature {
    margin-top: 48px;
    padding-top: 32px;
    border-top: 2px solid var(--border-color);
}

.signature-img {
    width: 180px;
    height: auto;
    margin-bottom: 12px;
}

.signature-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    border-radius: 24px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.15);
}

.about-quote {
    position: absolute;
    bottom: -30px;
    left: -30px;
    background: white;
    padding: 32px;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    max-width: 300px;
}

.quote-icon {
    width: 32px;
    height: 32px;
    color: var(--primary-color);
    margin-bottom: 12px;
}

.about-quote p {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1.5;
}

/* ===================================
   Categories Section
   =================================== */
.categories {
    padding: var(--section-padding);
    background: white;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.category-card {
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 24px;
    padding: 40px;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform 0.4s;
}

.category-card:hover::before {
    transform: scaleX(1);
}

.category-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.category-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.category-icon i {
    color: var(--primary-color);
}

.category-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.category-card > p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-gray);
    margin-bottom: 24px;
}

.category-books {
    list-style: none;
}

.category-books li {
    padding: 12px 0;
    padding-left: 28px;
    position: relative;
    color: var(--text-gray);
    font-size: 14px;
}

.category-books li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 700;
}

/* ===================================
   Profile Section
   =================================== */
.profile {
    padding: var(--section-padding);
    background: white;
}

.philosophy {
    padding: var(--section-padding);
    background: var(--bg-light);
}

.profile-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.profile-content.right {
    grid-template-columns: 1fr 1fr;
}

.profile-content.right .profile-image-wrapper {
    order: -1;
}

.profile-content.right .profile-text {
    order: 2;
}

.profile-image-wrapper {
    position: relative;
}

.profile-image-wrapper img {
    width: 100%;
    border-radius: 24px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.15);
    position: relative;
    z-index: 2;
}

.image-frame {
    position: absolute;
    top: 20px;
    left: 20px;
    right: -20px;
    bottom: -20px;
    border: 3px solid var(--primary-color);
    border-radius: 24px;
    z-index: 1;
}

.profile-text h2 {
    font-size: 48px;
    font-weight: 900;
    margin-bottom: 8px;
    margin-top: 16px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.profile-subtitle {
    font-size: 20px;
    color: var(--text-gray);
    margin-bottom: 32px;
    font-weight: 500;
}

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

.profile-description strong {
    color: var(--text-dark);
    font-weight: 700;
}

.profile-highlights {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.highlight-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.highlight-icon {
    font-size: 32px;
    flex-shrink: 0;
}

.highlight-icon i {
    color: var(--primary-color);
}

.highlight-text h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--text-dark);
}

.highlight-text p {
    font-size: 14px;
    color: var(--text-gray);
}

/* Philosophy Points */
.philosophy-points {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.point-item {
    display: flex;
    gap: 24px;
    align-items: flex-start;
}

.point-number {
    font-size: 32px;
    font-weight: 900;
    font-family: var(--font-accent);
    color: var(--primary-color);
    flex-shrink: 0;
}

.point-content h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text-dark);
}

.point-content p {
    font-size: 14px;
    color: var(--text-gray);
    margin: 0;
}

/* ===================================
   How To Section
   =================================== */
.how-to {
    padding: var(--section-padding);
    background: var(--bg-light);
}

.steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.step-item {
    flex: 1;
    background: white;
    padding: 48px 32px;
    border-radius: 24px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: var(--transition-smooth);
    position: relative;
}

.step-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.step-number {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 60px;
    background: var(--primary-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    font-weight: 900;
    font-family: var(--font-accent);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.step-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.step-icon i {
    color: var(--primary-color);
}

.step-item h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.step-item p {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.7;
}

.step-arrow {
    font-size: 32px;
    color: var(--primary-color);
    flex-shrink: 0;
}

.step-arrow i {
    color: var(--primary-color);
}

/* ===================================
   Testimonials Section
   =================================== */
.testimonials {
    padding: var(--section-padding);
    background: white;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.testimonial-card {
    background: var(--bg-light);
    padding: 32px;
    border-radius: 20px;
    transition: var(--transition-smooth);
}

.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.stars {
    color: #fbbf24;
    font-size: 18px;
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.testimonial-text {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-gray);
    margin-bottom: 24px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.testimonial-author img {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    object-fit: cover;
}

/* 如果没有头像，优化显示 */
.testimonial-author:not(:has(img)) {
    justify-content: flex-start;
    padding-left: 0;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-info h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.author-info p {
    font-size: 13px;
    color: var(--text-light);
}

/* 如果没有头像，在名字前添加用户图标 */
.testimonial-author:not(:has(img))::before {
    content: '';
    width: 48px;
    height: 48px;
    background: var(--primary-gradient);
    border-radius: 50%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ===================================
   FAQ Section
   =================================== */
.faq {
    padding: var(--section-padding);
    background: var(--bg-light);
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border-radius: 16px;
    margin-bottom: 16px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.faq-question {
    padding: 28px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: var(--transition-smooth);
}

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

.faq-question h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
}

.faq-icon {
    font-size: 28px;
    color: var(--primary-color);
    font-weight: 300;
    transition: transform 0.3s;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

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

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 32px 28px;
}

.faq-answer p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-gray);
}

/* ===================================
   Final CTA Section
   =================================== */
.final-cta {
    padding: var(--section-padding);
    background: var(--dark-gradient);
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: 56px;
    font-weight: 900;
    margin-bottom: 24px;
    line-height: 1.2;
}

.cta-content > p {
    font-size: 20px;
    margin-bottom: 48px;
    opacity: 0.9;
}

.cta-large {
    padding: 24px 56px;
    font-size: 20px;
}

.cta-note {
    margin-top: 24px;
    font-size: 14px;
    opacity: 0.7;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 30px;
}

.footer-info h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.footer-info p {
    font-size: 14px;
    opacity: 0.8;
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    color: white;
    text-decoration: none;
    font-size: 14px;
    opacity: 0.8;
    transition: opacity 0.3s;
}

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

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

.footer-copyright p {
    font-size: 13px;
    opacity: 0.6;
}

/* ===================================
   Fixed Bottom CTA
   =================================== */
.fixed-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px;
    z-index: 1000;
    display: flex;
    justify-content: center;
    transform: translateY(0);
    transition: transform 0.3s;
    border-top: none;
    text-align: center;
}

.fixed-cta.hidden {
    transform: translateY(100%);
}

.cta-fixed {
    width: 100%;
    max-width: 500px;
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.3);
    border: none;
    outline: none;
    justify-content: center;
}

.cta-fixed:hover {
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.cta-fixed:focus {
    outline: none;
    border: none;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .hero-title {
        font-size: 56px;
    }
    
    .about-content,
    .profile-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .steps {
        flex-direction: column;
        gap: 60px;
    }
    
    .step-arrow {
        transform: rotate(90deg);
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px 0;
        --container-padding: 0 20px;
    }
    
    .hero {
        min-height: auto;
        padding: 80px 0 60px;
        background: linear-gradient(180deg, #667eea 0%, #764ba2 100%);
    }
    
    .profile-image {
        max-height: 300px;
        object-fit: cover;
    }
    
    .profile-image-wrapper img {
        max-height: 350px;
        object-fit: cover;
        width: 100%;
    }

    .hero .container {
        gap: 48px;
    }
    
    .hero-badge {
        font-size: 13px;
        padding: 10px 20px;
        margin-bottom: 24px;
        animation: slideInDown 0.8s ease-out;
    }
    
    @keyframes slideInDown {
        from {
            opacity: 0;
            transform: translateY(-20px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    .hero-title {
        font-size: 38px;
        margin-bottom: 24px;
        line-height: 1.2;
    }
    
    .hero-subtitle {
        font-size: 16px;
        margin-bottom: 36px;
        line-height: 1.7;
    }
    
    .hero-stats {
        gap: 12px;
        margin-bottom: 36px;
        flex-wrap: nowrap;
        justify-content: space-between;
        padding: 24px;
        background: rgba(255, 255, 255, 0.15);
        backdrop-filter: blur(10px);
        border-radius: 20px;
        border: 1px solid rgba(255, 255, 255, 0.2);
    }
    
    .stat-item {
        flex: 1;
        text-align: center;
    }
    
    .stat-number {
        font-size: 32px;
        margin-bottom: 6px;
    }
    
    .stat-label {
        font-size: 12px;
        opacity: 0.95;
    }
    
    .stat-divider {
        width: 1px;
        height: 40px;
        background: rgba(255, 255, 255, 0.3);
    }
    
    .floating-card {
        display: none;
    }
    
    .hero-image {
        order: -1;
        margin-bottom: 20px;
    }
    
    .hero-card {
        transform: rotate(0deg);
        border-radius: 20px;
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
    }
    
    .card-overlay {
        padding: 24px;
        background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
    }
    
    .card-overlay h3 {
        font-size: 28px;
        margin-bottom: 4px;
    }
    
    .card-overlay p {
        font-size: 16px;
        opacity: 0.95;
    }
    
    .cta-hero {
        width: 100%;
        justify-content: center;
        padding: 18px 32px;
        font-size: 17px;
    }
    
    .promo-text {
        margin-top: 16px;
        padding: 14px 20px;
        font-size: 14px;
        line-height: 1.5;
    }
    
    .section-title {
        font-size: 28px;
        line-height: 1.3;
    }
    
    .section-description {
        font-size: 15px;
    }
    
    .section-header {
        margin-bottom: 40px;
    }
    
    .about-content {
        gap: 40px;
    }
    
    .about-text h3 {
        font-size: 24px;
    }
    
    .about-text p {
        font-size: 15px;
    }
    
    .about-quote {
        position: static;
        margin-top: 20px;
        max-width: 100%;
    }
    
    .profile-content {
        gap: 40px;
    }
    
    .profile-content.left {
        display: flex;
        flex-direction: column;
    }
    
    .profile-content.left .profile-image-wrapper {
        order: 1;
        margin-bottom: 0;
    }
    
    .profile-content.left .profile-text {
        order: 2;
    }
    
    .profile-highlights {
        margin-top: 32px;
    }
    
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .category-card {
        padding: 28px 20px;
    }
    
    .category-icon {
        font-size: 36px;
        margin-bottom: 16px;
    }
    
    .category-card h3 {
        font-size: 18px;
        margin-bottom: 12px;
    }
    
    .category-card > p {
        font-size: 14px;
        margin-bottom: 16px;
    }
    
    .category-books li {
        font-size: 13px;
        padding: 8px 0;
    }
    
    .profile-content.right {
        display: flex;
        flex-direction: column;
    }
    
    .profile-content.right .profile-image-wrapper {
        order: 1;
        margin-bottom: 40px;
    }
    
    .profile-content.right .profile-text {
        order: 2;
    }
    
    .profile-text h2 {
        font-size: 32px;
    }
    
    .profile-subtitle {
        font-size: 16px;
    }
    
    .profile-description p {
        font-size: 15px;
    }
    
    .image-frame {
        top: 15px;
        left: 15px;
        right: -15px;
        bottom: -15px;
    }
    
    .philosophy-points {
        margin-top: 32px;
    }
    
    .point-item {
        gap: 16px;
    }
    
    .point-number {
        font-size: 28px;
    }
    
    .point-content h4 {
        font-size: 17px;
    }
    
    .point-content p {
        font-size: 14px;
    }
    
    .step-item {
        padding: 40px 24px;
    }
    
    .step-icon {
        font-size: 40px;
    }
    
    .step-item h3 {
        font-size: 20px;
    }
    
    .step-item p {
        font-size: 14px;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonial-card {
        padding: 24px;
    }
    
    .testimonial-text {
        font-size: 14px;
        line-height: 1.7;
    }
    
    .testimonial-author:not(:has(img))::before {
        width: 40px;
        height: 40px;
    }
    
    .author-info h4 {
        font-size: 15px;
    }
    
    .author-info p {
        font-size: 12px;
    }
    
    .faq-question {
        padding: 20px;
    }
    
    .faq-question h3 {
        font-size: 16px;
    }
    
    .faq-item.active .faq-answer {
        padding: 0 20px 20px;
    }
    
    .faq-answer p {
        font-size: 14px;
    }
    
    .cta-content h2 {
        font-size: 28px;
    }
    
    .cta-content > p {
        font-size: 15px;
        margin-bottom: 32px;
    }
    
    .cta-button {
        padding: 16px 32px;
        font-size: 16px;
    }
    
    .cta-large {
        padding: 18px 40px;
        font-size: 17px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 24px;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 12px;
    }
    
    .mobile-break {
        display: block;
    }
    
    /* Fixed CTA优化 */
    .fixed-cta {
        padding: 12px;
    }
    
    .cta-fixed {
        font-size: 15px;
        padding: 14px 24px;
    }
    
    .cta-fixed .button-text {
        font-size: 15px;
    }
    
    .cta-fixed .button-icon,
    .cta-fixed .button-arrow {
        font-size: 16px;
    }
}

@media (min-width: 769px) {
    .mobile-break {
        display: none;
    }
}