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

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.8;
    color: #333;
    background-color: #fff;
}

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

/* 导航栏 */
.navbar {
    background: #fff;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    display: flex;
    align-items: center;
    color: #333;
    font-size: 1.5rem;
    font-weight: bold;
}

.navbar-brand i {
    margin-right: 0.5rem;
    font-size: 1.8rem;
    color: #667eea;
}

.navbar-menu {
    display: flex;
    list-style: none;
}

.navbar-menu li {
    margin-left: 2.5rem;
}

.navbar-menu a {
    color: #333;
    text-decoration: none;
    font-size: 1rem;
    transition: color 0.3s ease;
    font-weight: 500;
}

.navbar-menu a:hover,
.navbar-menu a.active {
    color: #667eea;
}

.navbar-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.navbar-toggle span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* 英雄区域 */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 50vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    padding-top: 60px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    letter-spacing: 0.05em;
}

.hero-content p {
    font-size: 1.5rem;
    opacity: 0.9;
    letter-spacing: 0.1em;
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.btn-primary {
    display: inline-block;
    background: #ffd700;
    color: #333;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background: #ffed4a;
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255, 215, 0, 0.3);
}

.btn-secondary {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
    border: 2px solid #fff;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: #fff;
    color: #667eea;
}

/* 首页功能区 */
.home-features {
    padding: 5rem 0;
    background: #f5f7fa;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    color: #333;
    font-weight: 600;
    margin-bottom: 3rem;
}

.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 3rem;
}

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

.feature-card {
    background: #fff;
    padding: 2.5rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.8rem;
}

.feature-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: #333;
}

.feature-card p {
    color: #666;
}

/* 首页优势区 */
.home-advantages {
    padding: 5rem 0;
    background: #fff;
}

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

.advantage-card {
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    color: #fff;
    transition: transform 0.3s ease;
}

.advantage-card:hover {
    transform: translateY(-8px);
}

.advantage-card i {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.advantage-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.advantage-card p {
    opacity: 0.9;
    font-size: 0.9rem;
}

/* 页面头部 */
.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 8rem 0 3rem;
    text-align: center;
    color: #fff;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.page-header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* 功能详情页 */
.feature-detail {
    padding: 5rem 0;
    background: #fff;
}

.feature-detail.bg-gray {
    background: #f5f7fa;
}

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

.feature-icon-large {
    width: 100px;
    height: 100px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 2.5rem;
}

.feature-header h2 {
    font-size: 2rem;
    color: #333;
}

.feature-content {
    max-width: 800px;
    margin: 0 auto;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    padding: 2rem;
    background: #fff;
    margin-bottom: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.06);
}

.feature-detail.bg-gray .feature-item {
    background: #fff;
}

.feature-item i {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.2rem;
    margin-right: 1.5rem;
    flex-shrink: 0;
}

.feature-item h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: #333;
}

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

/* 优势详情页 */
.advantages-detail {
    padding: 5rem 0;
}

.advantages-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.advantage-item {
    display: flex;
    align-items: flex-start;
    padding: 3rem;
    background: #f5f7fa;
    border-radius: 15px;
}

.advantage-item.bg-gradient {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

.advantage-icon-wrap {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.8rem;
    margin-right: 2rem;
    position: relative;
    flex-shrink: 0;
}

.advantage-item.bg-gradient .advantage-icon-wrap {
    background: rgba(255, 255, 255, 0.2);
}

.advantage-num {
    position: absolute;
    top: -5px;
    right: -5px;
    width: 28px;
    height: 28px;
    background: #ffd700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: bold;
    color: #333;
}

.advantage-content h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #333;
}

.advantage-item.bg-gradient .advantage-content h2 {
    color: #fff;
}

.advantage-desc {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
}

.desc-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(102, 126, 234, 0.1);
    border-radius: 20px;
    font-size: 0.9rem;
}

.advantage-item.bg-gradient .desc-item {
    background: rgba(255, 255, 255, 0.2);
}

.desc-item i {
    color: #667eea;
    font-size: 0.8rem;
}

.advantage-item.bg-gradient .desc-item i {
    color: #ffd700;
}

.advantage-text {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.8;
}

.advantage-item.bg-gradient .advantage-text {
    color: rgba(255, 255, 255, 0.9);
}

/* 统计数据 */
.stats {
    padding: 5rem 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

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

.stat-item {
    text-align: center;
    color: #fff;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

/* 关于我们页 */
.about-intro {
    padding: 5rem 0;
    background: #f5f7fa;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: #333;
}

.about-text p {
    color: #666;
    margin-bottom: 1rem;
    font-size: 0.95rem;
    line-height: 1.8;
}

.about-image {
    display: flex;
    justify-content: center;
}

.image-placeholder {
    width: 250px;
    height: 250px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 4rem;
}

.about-values {
    padding: 5rem 0;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.value-item {
    text-align: center;
    padding: 2.5rem;
    background: #f5f7fa;
    border-radius: 12px;
}

.value-item i {
    font-size: 2.5rem;
    color: #667eea;
    margin-bottom: 1rem;
}

.value-item h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.value-item p {
    color: #666;
    font-size: 0.9rem;
}

.about-team {
    padding: 5rem 0;
    background: #f5f7fa;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.team-member {
    text-align: center;
    padding: 2rem;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.06);
}

.member-avatar {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 2.5rem;
    margin: 0 auto 1rem;
}

.team-member h3 {
    font-size: 1.2rem;
    margin-bottom: 0.3rem;
    color: #333;
}

.team-member p {
    color: #667eea;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.member-desc {
    color: #666 !important;
    font-size: 0.85rem !important;
}

.about-history {
    padding: 5rem 0;
}

.timeline {
    max-width: 600px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #ddd;
    transform: translateX(-50%);
}

.timeline-item {
    display: flex;
    position: relative;
    margin-bottom: 2rem;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-year {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1rem;
    font-weight: bold;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}

.timeline-content {
    flex: 1;
    padding: 1.5rem;
    background: #f5f7fa;
    border-radius: 10px;
    margin-left: 1.5rem;
    max-width: calc(50% - 50px);
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: 0;
    margin-right: 1.5rem;
}

.timeline-content h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.timeline-content p {
    color: #666;
    font-size: 0.9rem;
}

/* 联系我们页 */
.contact-info {
    padding: 5rem 0;
    background: #f5f7fa;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.contact-card {
    background: #fff;
    padding: 2.5rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.06);
}

.contact-card i {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.5rem;
    margin: 0 auto 1rem;
}

.contact-card h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #333;
}

.contact-card p {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 0.3rem;
}

.contact-form-section {
    padding: 5rem 0;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: #f5f7fa;
    padding: 3rem;
    border-radius: 15px;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #333;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 0.95rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
}

.form-group textarea {
    resize: vertical;
}

.btn-submit {
    width: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 1rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.3);
}

.contact-map {
    padding: 5rem 0;
    background: #f5f7fa;
}

.map-placeholder {
    height: 300px;
    background: #fff;
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #666;
    font-size: 0.95rem;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.06);
}

.map-placeholder i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #667eea;
}

/* 页脚 */
.footer {
    background: #333;
    color: #999;
    padding: 3rem 0;
}

.footer-info {
    margin-bottom: 1.5rem;
}

.footer-info p {
    margin-bottom: 0.3rem;
    font-size: 0.9rem;
}

.copyright {
    text-align: center;
    font-size: 0.85rem;
    padding-top: 1.5rem;
    border-top: 1px solid #444;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background: #fff;
        padding: 1rem;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    }

    .navbar-menu li {
        margin: 1rem 0;
        text-align: center;
    }

    .navbar-toggle {
        display: flex;
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }

    .hero-content p {
        font-size: 1.1rem;
    }

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

    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .advantage-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .advantage-icon-wrap {
        margin-right: 0;
        margin-bottom: 1.5rem;
    }

    .advantage-desc {
        justify-content: center;
    }

    .timeline::before {
        left: 40px;
    }

    .timeline-item {
        flex-direction: column !important;
        align-items: flex-start;
    }

    .timeline-content {
        margin-left: 1.5rem !important;
        margin-right: 0 !important;
        max-width: 100%;
        margin-top: -40px;
        padding-left: 50px;
    }

    .contact-form {
        padding: 2rem 1.5rem;
    }
}

.navbar-menu.active {
    display: flex;
}

/* 功能模块介绍页面 */
.features-intro {
    padding: 5rem 0;
    background: #f5f7fa;
}

.features-grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.feature-box {
    background: #fff;
    border-radius: 15px;
    padding: 2.5rem;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.feature-icon-box {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.feature-box h3 {
    font-size: 1.4rem;
    color: #333;
    margin-bottom: 0.8rem;
}

.feature-desc {
    color: #667eea;
    font-size: 0.95rem;
    margin-bottom: 1.2rem;
    font-weight: 500;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    padding: 0.6rem 0;
    padding-left: 1.8rem;
    position: relative;
    color: #666;
    font-size: 0.9rem;
    line-height: 1.7;
    border-bottom: 1px solid #f0f0f0;
}

.feature-list li:last-child {
    border-bottom: none;
}

.feature-list li::before {
    content: '●';
    position: absolute;
    left: 0;
    color: #667eea;
    font-size: 0.7rem;
}

@media (max-width: 768px) {
    .features-grid-2 {
        grid-template-columns: 1fr;
    }
    
    .feature-box {
        padding: 1.8rem;
    }
    
    .feature-box h3 {
        font-size: 1.2rem;
    }
    
    .feature-list li {
        font-size: 0.85rem;
        padding-left: 1.5rem;
    }
}

/* 价格页面 */
.pricing-plans {
    padding: 5rem 0;
    background: #f5f7fa;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: #fff;
    border-radius: 15px;
    padding: 2.5rem;
    text-align: center;
    position: relative;
    border: 2px solid transparent;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.pricing-card.popular {
    border-color: #667eea;
    transform: scale(1.05);
}

.popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: bold;
}

.pricing-header h3 {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.pricing-desc {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.pricing-price {
    margin-bottom: 2rem;
}

.currency {
    font-size: 1.5rem;
    color: #667eea;
}

.amount {
    font-size: 3.5rem;
    font-weight: 700;
    color: #333;
    margin: 0 0.2rem;
}

.period {
    color: #666;
    font-size: 1rem;
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: 2rem;
}

.pricing-features li {
    padding: 0.7rem 0;
    padding-left: 2rem;
    position: relative;
    color: #666;
    font-size: 0.9rem;
    border-bottom: 1px solid #f0f0f0;
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features li i {
    position: absolute;
    left: 0;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
}

.pricing-features li .fa-check {
    background: #28a745;
    color: #fff;
}

.pricing-features li .fa-times {
    background: #dc3545;
    color: #fff;
}

.pricing-btn {
    width: 100%;
    padding: 1rem;
    border: 2px solid #667eea;
    border-radius: 8px;
    background: #fff;
    color: #667eea;
    font-weight: bold;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.pricing-btn:hover {
    background: #667eea;
    color: #fff;
}

.pricing-btn.primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border: none;
}

.pricing-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.3);
}

/* 常见问题 */
.pricing-faq {
    padding: 5rem 0;
    background: #fff;
}

.faq-list {
    max-width: 700px;
    margin: 0 auto;
}

.faq-item {
    background: #f5f7fa;
    border-radius: 10px;
    margin-bottom: 1rem;
    overflow: hidden;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 1.5rem;
    cursor: pointer;
    font-weight: 500;
    color: #333;
}

.faq-question i {
    color: #667eea;
    transition: transform 0.3s ease;
}

.faq-question.active i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-answer.active {
    padding: 0 1.5rem 1.5rem;
    max-height: 200px;
}

.faq-answer p {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.6;
}

/* 隐私政策页面 */
.privacy-content {
    padding: 5rem 0;
    background: #fff;
}

.privacy-section {
    max-width: 800px;
    margin: 0 auto 3rem;
    padding: 2rem;
    background: #f5f7fa;
    border-radius: 12px;
}

.privacy-section h2 {
    color: #333;
    font-size: 1.3rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #667eea;
}

.privacy-section h3 {
    color: #444;
    font-size: 1.1rem;
    margin: 1.2rem 0 0.8rem;
}

.privacy-section p {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 0.8rem;
}

.privacy-section ul {
    list-style: none;
    padding-left: 1.5rem;
}

.privacy-section li {
    padding: 0.5rem 0;
    position: relative;
    color: #666;
    font-size: 0.95rem;
}

.privacy-section li::before {
    content: '●';
    position: absolute;
    left: -1rem;
    color: #667eea;
}

.last-updated {
    color: #999 !important;
    font-size: 0.85rem !important;
    text-align: right;
}

/* 关于我们页面联系部分 */
.about-contact {
    padding: 5rem 0;
    background: #f5f7fa;
}

.about-contact .contact-grid {
    margin-bottom: 3rem;
}

.about-contact .contact-form-section {
    max-width: 700px;
    margin: 0 auto;
}

.about-contact .contact-form-section h3 {
    text-align: center;
    margin-bottom: 2rem;
    color: #333;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

@media (max-width: 768px) {
    .pricing-card.popular {
        transform: none;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}