/* 英雄区域样式 */
.hero {
    background: linear-gradient(135deg, #1a73e8 0%, #6c8ef5 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
    border-radius: 0 0 30px 30px;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
}

.hero p {
    font-size: 20px;
    max-width: 700px;
    margin: 0 auto 30px;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 36px;
    }
    
    .hero p {
        font-size: 18px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 80%;
        margin-bottom: 10px;
    }
}

/* 特性区域样式 */
.features {
    padding: 80px 0;
    background-color: white;
}

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

.feature-card {
    background-color: var(--light-color);
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 40px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-bottom: 15px;
    font-size: 20px;
}

/* 下载区域样式 */
.download-section {
    padding: 80px 0;
    background-color: #f0f4f8;
}

.download-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.download-card {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.download-card:hover {
    transform: translateY(-5px);
}

.platform-icon {
    font-size: 50px;
    margin-bottom: 20px;
}

.windows { color: #0078d7; }
.mac { color: #999; }
.android { color: #3ddc84; }
.ios { color: #000; }

.download-card h3 {
    margin-bottom: 15px;
}

.download-card p {
    color: var(--gray-color);
    margin-bottom: 20px;
    font-size: 14px;
}

.download-link {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 10px 20px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.download-link:hover {
    background-color: #0d5bb7;
}

/* 用户评价样式 */
.testimonials {
    padding: 80px 0;
    background-color: white;
}

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

.testimonial-card {
    background-color: var(--light-color);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--box-shadow);
}

.testimonial-content {
    margin-bottom: 20px;
    font-style: italic;
}

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

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-right: 15px;
}

.author-info h4 {
    margin-bottom: 5px;
}

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

/* 常见问题样式 */
.faq-section {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 20px;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--primary-color);
}

.faq-question {
    padding: 20px;
    background-color: #f8f9fa;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s, padding 0.3s;
}

.faq-item.active .faq-answer {
    padding: 20px;
    max-height: 500px;
}