:root {
    --primary-color: #1a365d;
    --primary-light: #2d5a87;
    --secondary-color: #d69e2e;
    --accent-color: #e53e3e;
    --success-color: #38a169;
    --text-dark: #1a202c;
    --text-medium: #4a5568;
    --text-light: #718096;
    --text-lighter: #a0aec0;
    --white: #ffffff;
    --gray-50: #f7fafc;
    --gray-100: #edf2f7;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e0;
    --gray-800: #2d3748;
    --gray-900: #1a202c;

    /* 渐变色 */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-warm: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
    --gradient-cool: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);

    /* 阴影 */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);
    --shadow-colored: 0 10px 40px rgba(102, 126, 234, 0.2);

    /* 圆角 */
    --radius-sm: 8px;
    --radius: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;

    /* 过渡动画 */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Noto Sans TC', sans-serif;
    line-height: 1.7;
    color: var(--text-dark);
    overflow-x: hidden;
    background: var(--white);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 全局文字样式 */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Noto Serif TC', serif;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

p {
    margin-bottom: 1.5rem;
    color: var(--text-medium);
}

/* 导航栏重新设计 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px) saturate(180%);
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar.scrolled {
    padding: 1rem 0;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    font-family: 'Noto Serif TC', serif;
}

.logo-image {
    width: 60px;
    height: 60px;
    margin-right: 0.75rem;
    object-fit: contain;
}

.nav-logo i {
    margin-right: 0.75rem;
    font-size: 2rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-medium);
    font-weight: 500;
    font-size: 1.1rem;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 0;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--gradient-primary);
    transition: var(--transition);
    border-radius: var(--radius-sm);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
    position: relative;
}

.bar {
    width: 28px;
    height: 3px;
    background: var(--text-dark);
    margin: 4px 0;
    transition: var(--transition);
    border-radius: 2px;
}

/* 英雄区块重新设计 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--gradient-hero);
    padding-top: 100px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%23ffffff" fill-opacity="0.05"><circle cx="30" cy="30" r="2"/></g></svg>');
    pointer-events: none;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-family: 'Noto Serif TC', serif;
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 2rem;
    color: var(--white);
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.highlight {
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
    font-weight: 800;
}

.hero-subtitle {
    font-size: 1.4rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 3rem;
    line-height: 1.6;
    font-weight: 400;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.25rem 2.5rem;
    text-decoration: none;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

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

.btn-primary {
    background: rgba(255, 255, 255, 0.15);
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
    background: rgba(255, 255, 255, 0.25);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary-color);
    border: 2px solid var(--white);
}

.btn-secondary:hover {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
    transform: translateY(-3px);
}

.phone-mockup {
    position: relative;
    max-width: 280px;
    margin: 0 auto;
    transform: perspective(1000px) rotateY(-20deg) rotateX(10deg);
    transition: var(--transition-slow);
}

.phone-mockup:hover {
    transform: perspective(1000px) rotateY(-10deg) rotateX(5deg) scale(1.05);
}

.phone-mockup img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

/* 应用展示区重新设计 */
.apps-showcase {
    padding: 8rem 0;
    background: var(--gray-50);
    position: relative;
}

.section-title {
    font-family: 'Noto Serif TC', serif;
    font-size: 3.5rem;
    text-align: center;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    font-weight: 700;
}

.section-subtitle {
    text-align: center;
    font-size: 1.4rem;
    color: var(--text-light);
    margin-bottom: 5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 4rem;
    margin-bottom: 6rem;
}

.app-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    transition: var(--transition-slow);
    border: 1px solid var(--gray-200);
    position: relative;
    overflow: hidden;
}

.app-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: var(--gradient-primary);
}

.app-card.featured {
    border: 2px solid transparent;
    background: linear-gradient(var(--white), var(--white)) padding-box,
                var(--gradient-primary) border-box;
    transform: scale(1.02);
}

.app-card.featured::after {
    content: '推薦';
    position: absolute;
    top: -12px;
    right: 30px;
    background: var(--gradient-primary);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-lg);
    font-size: 0.9rem;
    font-weight: 700;
    box-shadow: var(--shadow);
}

.app-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.app-card.featured:hover {
    transform: translateY(-8px) scale(1.04);
}

.app-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--white);
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-colored);
}

.app-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: var(--radius-lg);
}

.app-card h3 {
    font-family: 'Noto Serif TC', serif;
    font-size: 1.6rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
    font-weight: 700;
}

.app-description {
    color: var(--text-medium);
    margin-bottom: 1.5rem;
    line-height: 1.7;
    font-size: 1rem;
}

.app-features {
    list-style: none;
    margin-bottom: 2rem;
}

.app-features li {
    display: flex;
    align-items: center;
    margin-bottom: 0.75rem;
    color: var(--text-medium);
    font-size: 1rem;
    padding: 0.25rem 0;
}

.app-features i {
    color: var(--success-color);
    margin-right: 1rem;
    font-size: 1.1rem;
    width: 20px;
}

.download-buttons {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 2rem;
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: var(--transition);
    border: 2px solid var(--gray-200);
    background: var(--white);
    color: var(--text-dark);
    flex: 1;
    min-width: 180px;
    justify-content: center;
    font-weight: 600;
    font-size: 1rem;
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.download-btn.appstore {
    background: linear-gradient(135deg, #4c63d2 0%, #667eea 100%);
    color: var(--white);
    border-color: #4c63d2;
}

.download-btn.appstore:hover {
    background: linear-gradient(135deg, #3c54c7 0%, #5a6fd8 100%);
    border-color: #3c54c7;
}

.download-btn.googleplay {
    background: var(--success-color);
    color: var(--white);
    border-color: var(--success-color);
}

.download-btn.googleplay:hover {
    background: #2f855a;
}

.download-btn i {
    font-size: 1.8rem;
}

.download-btn div {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    line-height: 1.3;
}

.download-btn span {
    font-size: 0.85rem;
    opacity: 0.9;
    font-weight: 400;
}

.download-btn strong {
    font-size: 1.1rem;
    font-weight: 700;
}

/* 功能特色重新设计 */
.features {
    padding: 8rem 0;
    background: var(--white);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(102, 126, 234, 0.02) 0%, rgba(118, 75, 162, 0.02) 100%);
}

.features .container {
    position: relative;
    z-index: 2;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
}

.feature-card {
    background: var(--white);
    padding: 3rem 2.5rem;
    border-radius: var(--radius-xl);
    text-align: center;
    transition: var(--transition-slow);
    border: 1px solid var(--gray-200);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-warm);
    opacity: 0;
    transition: var(--transition);
}

.feature-card:hover::before {
    opacity: 0.03;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.feature-icon {
    width: 100px;
    height: 100px;
    background: var(--gradient-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    font-size: 2.2rem;
    color: var(--white);
    position: relative;
    z-index: 3;
    box-shadow: var(--shadow-lg);
}

.feature-card h3 {
    font-size: 1.6rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    font-weight: 700;
    position: relative;
    z-index: 3;
}

.feature-card p {
    color: var(--text-medium);
    line-height: 1.7;
    font-size: 1.1rem;
    position: relative;
    z-index: 3;
}

/* 关于我们重新设计 */
.about {
    padding: 8rem 0;
    background: var(--gray-50);
    overflow-x: hidden;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
    max-width: 100%;
}

.about-text h2 {
    font-family: 'Noto Serif TC', serif;
    font-size: 3rem;
    margin-bottom: 2.5rem;
    color: var(--text-dark);
    font-weight: 700;
}

.about-text p {
    font-size: 1.2rem;
    color: var(--text-medium);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.stats {
    display: flex;
    gap: 3rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
    padding: 2rem 1.5rem;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-item h3 {
    font-size: 2.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    font-weight: 800;
}

.stat-item p {
    color: var(--text-light);
    font-size: 1rem;
    font-weight: 600;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

/* 联系方式重新设计 */
.contact {
    padding: 8rem 0;
    background: var(--white);
}

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

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    margin-bottom: 3rem;
    padding: 3rem;
    background: var(--gray-50);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--gray-200);
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    background: var(--white);
}

.contact-item i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-top: 0.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
    font-weight: 700;
}

.contact-item p {
    color: var(--text-medium);
    line-height: 1.7;
    font-size: 1.1rem;
}

/* 页脚重新设计 */
.footer {
    background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-800) 100%);
    color: var(--white);
    padding: 6rem 0 3rem;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-primary);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
    align-items: start;
}

.footer-section h3 {
    margin-bottom: 1.5rem;
    color: var(--white);
    font-size: 1.3rem;
    font-weight: 700;
}

.footer-logo {
    display: flex;
    align-items: center;
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    font-family: 'Noto Serif TC', serif;
}

.footer-logo .logo-image {
    width: 54px;
    height: 54px;
    margin-right: 1rem;
    object-fit: contain;
}

.footer-logo i {
    margin-right: 1rem;
    font-size: 2.2rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-section p {
    color: var(--text-lighter);
    line-height: 1.7;
    font-size: 1.1rem;
    max-width: 400px;
}

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

.footer-section ul li {
    margin-bottom: 1rem;
}

.footer-section ul li a {
    color: var(--text-lighter);
    text-decoration: none;
    transition: var(--transition);
    font-size: 1.05rem;
}

.footer-section ul li a:hover {
    color: var(--white);
    padding-left: 0.5rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 3rem;
    border-top: 1px solid var(--gray-800);
    color: var(--text-lighter);
    font-size: 1.05rem;
}

/* FAQ頁面樣式 */
.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 120px 0 80px;
    text-align: center;
    color: white;
}

.page-title {
    font-size: 3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.page-subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.faq-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.faq-category {
    background: white;
    border-radius: 16px;
    padding: 40px;
    margin-bottom: 40px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

.category-title {
    font-size: 2rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 3px solid #667eea;
    position: relative;
}

.category-title::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 60px;
    height: 3px;
    background: #764ba2;
    border-radius: 2px;
}


.faq-item {
    border: 1px solid #e9ecef;
    border-radius: 12px;
    margin-bottom: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: #667eea;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.1);
}

.faq-item.active {
    border-color: #667eea;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15);
}

.faq-question {
    padding: 24px;
    background: #fff;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background: #f8f9fa;
}

.faq-item.active .faq-question {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.faq-question h3 {
    font-size: 1.1rem;
    font-weight: 500;
    margin: 0;
    color: inherit;
    line-height: 1.5;
    flex: 1;
    padding-right: 20px;
}

.toggle-icon {
    font-size: 1.5rem;
    font-weight: 300;
    color: #667eea;
    transition: all 0.3s ease;
    min-width: 24px;
    text-align: center;
}

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

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

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 24px;
}

.faq-answer p {
    margin: 0 0 16px 0;
    line-height: 1.7;
    color: #4a5568;
}

.faq-answer p:last-child {
    margin-bottom: 0;
}

.faq-answer ul {
    margin: 16px 0;
    padding-left: 20px;
}

.faq-answer li {
    margin-bottom: 8px;
    line-height: 1.6;
    color: #4a5568;
}

.contact-cta {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 80px 0;
    text-align: center;
    color: white;
}

.contact-cta h2 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.contact-cta p {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 16px 32px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50px;
    text-decoration: none;
    font-weight: 500;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.cta-button:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    color: white;
}

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

/* 防止移动端水平溢出 */
@media screen and (max-width: 768px) {
    * {
        max-width: 100% !important;
        box-sizing: border-box !important;
    }

    html, body {
        overflow-x: hidden !important;
        width: 100% !important;
    }

    .container {
        max-width: 100% !important;
        width: 100% !important;
        padding: 0 20px !important;
    }

    /* 确保所有主要内容区域不会溢出 */
    section, .hero, .apps-showcase, .features, .about, .contact {
        max-width: 100% !important;
        width: 100% !important;
        overflow-x: hidden !important;
    }

    .about, .about-content, .about-text, .about-image {
        max-width: 100% !important;
        width: 100% !important;
    }

    .stats {
        max-width: 100% !important;
        width: 100% !important;
    }

    .stat-item {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
}

/* 響應式設計 */
@media (max-width: 768px) {
    /* 导航栏响应式 */
    .navbar {
        width: 100% !important;
        max-width: 100% !important;
    }

    .nav-container {
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 20px !important;
    }

    .nav-menu {
        position: fixed;
        top: 80px;
        right: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--white);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding: 2rem 0;
        transition: var(--transition);
        box-shadow: var(--shadow-lg);
        z-index: 999;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-link {
        margin: 1rem 0;
        font-size: 1.2rem;
        color: var(--text-dark);
        text-align: center;
        padding: 1rem 2rem;
        width: 100%;
        border-bottom: 1px solid var(--gray-200);
    }

    .nav-toggle {
        display: flex;
    }

    /* 英雄区域响应式 */
    .hero {
        padding: 140px 0 80px;
    }

    .hero-content {
        flex-direction: column;
        text-align: center;
        gap: 3rem;
    }

    .hero-text {
        order: 2;
    }

    .hero-image {
        order: 1;
    }

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

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }

    .phone-mockup {
        max-width: 280px;
        margin: 0 auto;
    }

    /* 应用展示响应式 */
    .apps-showcase {
        padding: 60px 0;
    }

    .apps-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .app-card {
        padding: 2rem 1.5rem;
    }

    .download-buttons {
        flex-direction: column;
        gap: 0.8rem;
    }

    .download-btn {
        padding: 12px 20px;
        font-size: 0.9rem;
    }

    /* 功能特色响应式 */
    .features {
        padding: 60px 0;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .feature-card {
        padding: 2rem 1.5rem;
        text-align: center;
    }

    /* 关于我们响应式 */
    .about {
        padding: 60px 0;
        width: 100% !important;
    }

    .about-content {
        display: flex !important;
        flex-direction: column;
        gap: 3rem;
        width: 100% !important;
        max-width: 100% !important;
    }

    .about-text {
        order: 2;
        width: 100% !important;
        max-width: 100% !important;
    }

    .about-image {
        order: 1;
        width: 100% !important;
        max-width: 100% !important;
    }

    .about-image img {
        height: 300px;
        width: 100% !important;
        max-width: 100% !important;
    }

    .stats {
        display: flex !important;
        flex-direction: column;
        gap: 1.5rem;
        margin-top: 2rem;
        width: 100% !important;
        max-width: 100% !important;
    }

    .stat-item {
        padding: 1.5rem 1rem;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box;
    }

    /* 联系方式响应式 */
    .contact {
        padding: 60px 0;
    }

    .contact-info {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    /* 页脚响应式 */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    /* FAQ页面样式保持不变 */
    .page-header {
        padding: 100px 0 60px;
    }

    .page-title {
        font-size: 2.5rem;
    }

    .page-subtitle {
        font-size: 1.1rem;
    }

    .faq-section {
        padding: 60px 0;
    }

    .faq-category {
        padding: 30px 20px;
        margin-bottom: 30px;
    }

    .category-title {
        font-size: 1.8rem;
    }

    .faq-question {
        padding: 20px;
    }

    .faq-question h3 {
        font-size: 1rem;
        padding-right: 15px;
    }

    .faq-item.active .faq-answer {
        padding: 20px;
    }

    .contact-cta {
        padding: 60px 0;
    }

    .contact-cta h2 {
        font-size: 2rem;
    }

    .contact-cta p {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 20px;
    }

    .hero {
        padding-top: 120px;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .app-card,
    .feature-card,
    .contact-item {
        padding: 2rem 1.5rem;
    }

    .btn {
        padding: 1rem 1.8rem;
        font-size: 1rem;
    }

    .apps-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .app-icon,
    .feature-icon {
        width: 80px;
        height: 80px;
        font-size: 2rem;
    }

    .stats {
        gap: 1rem;
    }

    .stat-item {
        padding: 1.5rem 1rem;
    }

    .stat-item h3 {
        font-size: 2rem;
    }

    .about-text h2 {
        font-size: 2.2rem;
    }

    .phone-mockup {
        max-width: 200px;
    }

    .social-links {
        justify-content: center;
    }
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 确保移动端正确显示 */
@media screen and (max-width: 768px) {
    .container {
        padding: 0 20px !important;
        max-width: 100% !important;
    }

    .nav-toggle {
        display: flex !important;
        visibility: visible !important;
        opacity: 1 !important;
    }

    .nav-menu {
        position: fixed !important;
        top: 80px !important;
        right: -100% !important;
        width: 100% !important;
        height: calc(100vh - 80px) !important;
        background: var(--white) !important;
        flex-direction: column !important;
        transition: var(--transition) !important;
        z-index: 999 !important;
    }

    .nav-menu.active {
        right: 0 !important;
    }
}

/* 小屏幕额外优化 */
@media screen and (max-width: 576px) {
    .hero-title {
        font-size: 2rem !important;
        line-height: 1.3;
    }

    .hero-subtitle {
        font-size: 1rem !important;
    }

    .section-title {
        font-size: 1.8rem !important;
    }
}

/* 加载动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.app-card,
.feature-card,
.contact-item {
    animation: fadeInUp 0.8s ease forwards;
}

.hero-title {
    animation: slideInLeft 1s ease forwards;
}

.hero-subtitle {
    animation: slideInLeft 1s ease 0.2s both;
}

.hero-buttons {
    animation: slideInLeft 1s ease 0.4s both;
}

.phone-mockup {
    animation: slideInRight 1s ease 0.3s both;
}

/* 高亮效果 */
.app-card.featured {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.02) 0%, rgba(118, 75, 162, 0.02) 100%);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-light);
}

/* 选择文本样式 */
::selection {
    background: var(--gradient-primary);
    color: var(--white);
}

::-moz-selection {
    background: var(--gradient-primary);
    color: var(--white);
}

/* 焦点样式 */
.btn:focus,
.nav-link:focus,
.download-btn:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* 加载状态 */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

/* 工具提示 */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gray-900);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1000;
}

.tooltip:hover::after {
    opacity: 1;
    visibility: visible;
}

/* 无障碍样式 */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* 打印样式 */
@media print {
    .navbar,
    .hero-buttons,
    .download-buttons,
    .social-links {
        display: none;
    }

    .hero {
        background: none;
        color: var(--text-dark);
    }

    .hero-title,
    .hero-subtitle {
        color: var(--text-dark);
    }
}

/* 移动端菜单按钮显示 */
@media screen and (max-width: 768px) {
    .nav-toggle {
        display: flex !important;
    }
}

@media screen and (max-width: 576px) {
    .nav-toggle {
        display: flex !important;
    }
}