/* 首页样式 */
.home-section {
    position: relative;
    overflow: hidden;
}

.home-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/background.jpg') center/cover;
    opacity: 0.1;
    z-index: 1;
}

.home-content {
    text-align: center;
    color: white;
    z-index: 2;
    position: relative;
    max-width: 800px;
    padding: 0 20px;
}

.main-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.sub-title {
    font-size: 1.5rem;
    font-weight: 300;
    margin-bottom: 40px;
    opacity: 0.9;
}

.download-button {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid white;
    color: white;
    padding: 15px 40px;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.download-button:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.download-icon {
    font-size: 1.1rem;
}

/* 内容页面样式 */
.content-section {
    background: #f8f9fa;
    padding: 100px 0;
}

.content-section:nth-child(even) {
    background: white;
}

.content-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.content-wrapper.reverse {
    direction: rtl;
}

.content-wrapper.reverse > * {
    direction: ltr;
}

.text-content {
    padding: 20px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 20px;
    position: relative;
}

.section-title::after {
    content: none;
}

.section-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #666;
    margin-bottom: 30px;
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    padding: 10px 0;
    font-size: 1rem;
    color: #555;
    position: relative;
    padding-left: 25px;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #007bff;
    font-weight: bold;
    font-size: 1.1rem;
}

.media-content {
    display: flex;
    justify-content: center;
    align-items: center;
}

.content-image {
    width: 400px;
    height: 300px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    object-fit: cover;
    transition: transform 0.3s ease;
}

.content-image:hover {
    transform: scale(1.05);
}

.placeholder-image {
    width: 400px;
    height: 300px;
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: #1976d2;
    font-weight: 500;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border: 2px dashed #1976d2;
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 - 基础设置 */
/* 详细的移动端样式请参考 mobile.css 文件 */