/* 首页样式 */
.welcome-content {
    background: white;
    border-radius: 15px;
    padding: 40px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.welcome-text h3 {
    color: #333;
    font-size: 28px;
    margin-bottom: 20px;
}

.welcome-text p {
    color: #666;
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 30px;
}

.features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
    transition: transform 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-2px);
}

.feature-item i {
    color: #667eea;
    font-size: 20px;
}

.feature-item span {
    color: #333;
    font-weight: 500;
}

/* 首页专用样式 */
.welcome-header {
    text-align: center;
    margin-bottom: 50px;
}

/* 为第二个欢迎标题添加上方空白区域 */
.welcome-header:nth-of-type(2) {
    margin-top: 120px;
}

/* 为第二个欢迎标题添加上方空白区域 */
.welcome-header:nth-of-type(2) {
    margin-top: 120px;
}

.welcome-header h2 {
    font-size: 36px;
    color: #333;
    margin-bottom: 15px;
    font-weight: 600;
}

.welcome-subtitle {
    font-size: 18px;
    color: #666;
    line-height: 1.6;
}

.feature-card {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.feature-icon i {
    font-size: 32px;
    color: white;
}

.feature-card h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 15px;
    font-weight: 600;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
    font-size: 14px;
}

.demo-section {
    background: white;
    border-radius: 15px;
    padding: 40px;
    margin-bottom: 0;
}

.demo-section h3 {
    font-size: 28px;
    color: #333;
    text-align: center;
    margin-bottom: 30px;
    font-weight: 600;
}

.demo-images {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
    align-items: start;
}

.demo-image {
    text-align: center;
}

/* 紧凑图片样式 */
.compact-img {
    width: 100%;
    max-width: 100%;
    height: auto;
    max-height: 75vh;
    object-fit: contain;
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    margin: 10px 0 15px 0;
    display: block;
    padding: 0;
    background: transparent;
    transition: all 0.3s ease;
}

/* 专门针对before-after图片的白色背景处理 */
.before-after-img {
    mix-blend-mode: multiply;
    opacity: 0.9;
    max-width: 100%;
    width: auto;
    height: auto;
    display: block;
    margin: 0 auto;
}

/* 操作演示区块样式 */
.demo-section {
    margin-top: 40px;
    padding: 40px 0;
    text-align: center;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.demo-header h3 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 32px;
    font-weight: 700;
}

.demo-header p {
    color: #666;
    font-size: 16px;
    margin-bottom: 30px;
}

.demo-content {
    max-width: 1000px;
    margin: 0 auto;
}

.demo-image {
    margin-bottom: 30px;
}

.demo-image img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.operation-steps {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.operation-steps .step {
    display: flex;
    align-items: center;
    background: #f8f9fa;
    padding: 15px 20px;
    border-radius: 10px;
    border: 1px solid #e9ecef;
}

.step-number {
    background: #667eea;
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    font-weight: bold;
    font-size: 14px;
}

/* 定价区块样式 */
.pricing-section {
    margin-top: 40px;
    padding: 40px 0;
    text-align: center;
}

.pricing-section h2 {
    color: #2c3e50;
    margin-bottom: 40px;
    font-size: 32px;
    font-weight: 700;
}

/* 定价分类标题 */
.pricing-category {
    margin-bottom: 60px;
}

.category-title {
    font-size: 2rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

/* 定价卡片容器 */
.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    max-width: 1200px;
    margin: 0 auto;
}

/* 表格定价布局样式 */
.pricing-table-container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    overflow: hidden;
}

.table-header {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr 1fr;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-bottom: 2px solid #dee2e6;
    padding: 20px 15px;
    font-weight: 600;
    color: #333;
}

.table-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr 1fr;
    padding: 20px 15px;
    border-bottom: 1px solid #f0f0f0;
    transition: all 0.3s ease;
}

.table-row:hover {
    background: #f8f9fa;
    transform: translateY(-1px);
}

.table-row.featured {
    border-left: 4px solid;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.7) 100%);
}

.table-row.free-row {
    background: linear-gradient(135deg, #e8f5e8 0%, #d4edda 100%);
}

.table-row.count-row.featured {
    border-left-color: #ffc107;
}

.table-row.time-row.featured {
    border-left-color: #17a2b8;
}

.table-row.enterprise-row.featured {
    border-left-color: #6f42c1;
}

/* 移动设备响应式调整 */
@media (max-width: 768px) {
    .pricing-cards {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .pricing-card {
        padding: 20px;
    }
    
    .category-title {
        font-size: 1.5rem !important;
        flex-direction: column;
        gap: 5px;
    }
    
    .pricing-section h2 {
        font-size: 2rem !important;
        padding: 15px !important;
    }
    
    /* 表格响应式 */
    .pricing-table-container {
        border-radius: 10px;
        overflow-x: auto;
    }
    
    .table-header {
        grid-template-columns: 120px 80px 100px 80px 100px;
        padding: 15px 10px;
        font-size: 0.9rem;
    }
    
    .table-row {
        grid-template-columns: 120px 80px 100px 80px 100px;
        padding: 15px 10px;
        min-width: 500px;
    }
    
    .table-row > div {
        font-size: 0.85rem;
    }
    
    .table-row .btn {
        padding: 8px 12px;
        font-size: 0.8rem;
    }
}

/* 超大屏幕优化 */
@media (min-width: 1400px) {
    .pricing-table-container {
        max-width: 1400px;
    }
    
    .table-header, .table-row {
        padding: 25px 20px;
    }
}

/* 表格定价布局样式 */
.pricing-table-container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    overflow: hidden;
}

.table-header {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr 1fr;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-bottom: 2px solid #dee2e6;
    padding: 20px 15px;
    font-weight: 600;
    color: #333;
}

.table-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr 1fr;
    padding: 20px 15px;
    border-bottom: 1px solid #f0f0f0;
    transition: all 0.3s ease;
}

.table-row:hover {
    background: #f8f9fa;
    transform: translateY(-1px);
}

.table-row.featured {
    border-left: 4px solid;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.7) 100%);
}

.table-row.free-row {
    background: linear-gradient(135deg, #e8f5e8 0%, #d4edda 100%);
}

.table-row.count-row.featured {
    border-left-color: #ffc107;
}

.table-row.time-row.featured {
    border-left-color: #17a2b8;
}

.table-row.enterprise-row.featured {
    border-left-color: #6f42c1;
}

/* 移动设备响应式调整 */
@media (max-width: 768px) {
    .pricing-cards {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .pricing-card {
        padding: 20px;
    }
    
    .category-title {
        font-size: 1.5rem !important;
        flex-direction: column;
        gap: 5px;
    }
    
    .pricing-section h2 {
        font-size: 2rem !important;
        padding: 15px !important;
    }
    
    /* 表格响应式 */
    .pricing-table-container {
        border-radius: 10px;
        overflow-x: auto;
    }
    
    .table-header {
        grid-template-columns: 120px 80px 100px 80px 100px;
        padding: 15px 10px;
        font-size: 0.9rem;
    }
    
    .table-row {
        grid-template-columns: 120px 80px 100px 80px 100px;
        padding: 15px 10px;
        min-width: 500px;
    }
    
    .table-row > div {
        font-size: 0.85rem;
    }
    
    .table-row .btn {
        padding: 8px 12px;
        font-size: 0.8rem;
    }
}

/* 超大屏幕优化 */
@media (min-width: 1400px) {
    .pricing-table-container {
        max-width: 1400px;
    }
    
    .table-header, .table-row {
        padding: 25px 20px;
    }
}

.pricing-card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
    border: 2px solid #f0f0f0;
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.pricing-card.featured {
    border-color: #667eea;
    transform: scale(1.05);
    z-index: 10;
}

/* 免费版卡片特殊样式 */
.pricing-card.free-card {
    background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%);
    border: 3px solid #4CAF50;
    transform: scale(1.05);
    color: white;
}

.pricing-card.free-card .pricing-badge {
    background: linear-gradient(135deg, #ffd700 0%, #ffed4e 100%);
    color: #333;
}

/* 次数资源包卡片 */
.pricing-card.count-card {
    border-top: 4px solid #ff6b35;
}

.pricing-card.count-card.featured {
    border-top: 4px solid #28a745;
}

/* 时间资源包卡片 */
.pricing-card.time-card {
    border-top: 4px solid #17a2b8;
}

.pricing-card.time-card.featured {
    border-top: 4px solid #17a2b8;
}

/* 机构版卡片 */
.pricing-card.enterprise-card {
    border-top: 4px solid #6f42c1;
}

.pricing-card.enterprise-card.featured {
    border-top: 4px solid #6f42c1;
}

.pricing-badge {
    position: absolute;
    top: -15px;
    right: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    z-index: 5;
}

.pricing-header {
    margin-bottom: 20px;
}

.pricing-header h3 {
    color: #2c3e50;
    font-size: 24px;
    margin-bottom: 10px;
    font-weight: 600;
}

.pricing-card.free-card .pricing-header h3 {
    color: white;
}

.price {
    font-size: 36px;
    font-weight: 700;
    color: #667eea;
}

.pricing-card.free-card .price {
    color: white;
}

.price span {
    font-size: 18px;
    font-weight: 400;
    color: #6c757d;
}

.pricing-features {
    margin: 20px 0;
    min-height: 80px;
}

.pricing-features p {
    color: #546e7a;
    font-size: 16px;
    line-height: 1.6;
    margin: 8px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.pricing-card.free-card .pricing-features p {
    color: rgba(255, 255, 255, 0.9);
}

.pricing-action {
    margin-top: 20px;
}

.pricing-action .btn {
    width: 100%;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 600;
}

.savings-tip {
    color: #e74c3c;
    font-weight: bold;
    font-size: 14px;
    margin-top: 5px;
}

/* 产品对比说明样式 */
.comparison-section {
    background: white;
    border-radius: 15px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin-top: 60px;
}

.comparison-section h3 {
    font-size: 2rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 30px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.comparison-item {
    text-align: center;
    padding: 20px;
}

.comparison-item h4 {
    color: #333;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.comparison-item p {
    color: #666;
    line-height: 1.6;
    font-size: 1rem;
}

.pricing-header {
    margin-bottom: 20px;
}

.pricing-header h3 {
    color: #2c3e50;
    font-size: 24px;
    margin-bottom: 10px;
    font-weight: 600;
}

.pricing-card.free-card .pricing-header h3 {
    color: white;
}

.price {
    font-size: 36px;
    font-weight: 700;
    color: #667eea;
}

.pricing-card.free-card .price {
    color: white;
}

.price span {
    font-size: 18px;
    font-weight: 400;
    color: #6c757d;
}

.pricing-features {
    margin: 20px 0;
    min-height: 80px;
}

.pricing-features p {
    color: #546e7a;
    font-size: 16px;
    line-height: 1.6;
    margin: 8px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.pricing-card.free-card .pricing-features p {
    color: rgba(255, 255, 255, 0.9);
}

.pricing-action {
    margin-top: 20px;
}

.pricing-action .btn {
    width: 100%;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 600;
}

.savings-tip {
    color: #e74c3c;
    font-weight: bold;
    font-size: 14px;
    margin-top: 5px;
}

/* 产品对比说明样式 */
.comparison-section {
    background: white;
    border-radius: 15px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin-top: 60px;
}

.comparison-section h3 {
    font-size: 2rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 30px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.comparison-item {
    text-align: center;
    padding: 20px;
}

.comparison-item h4 {
    color: #333;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.comparison-item p {
    color: #666;
    line-height: 1.6;
    font-size: 1rem;
}

.pricing-header {
    margin-bottom: 20px;
}

.pricing-header h3 {
    color: #2c3e50;
    font-size: 24px;
    margin-bottom: 10px;
    font-weight: 600;
}

.pricing-card.free-card .pricing-header h3 {
    color: white;
}

.price {
    font-size: 36px;
    font-weight: 700;
    color: #667eea;
}

.pricing-card.free-card .price {
    color: white;
}

.price span {
    font-size: 18px;
    font-weight: 400;
    color: #6c757d;
}

.pricing-features {
    margin: 20px 0;
    min-height: 80px;
}

.pricing-features p {
    color: #546e7a;
    font-size: 16px;
    line-height: 1.6;
    margin: 8px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.pricing-card.free-card .pricing-features p {
    color: rgba(255, 255, 255, 0.9);
}

.pricing-action {
    margin-top: 20px;
}

.pricing-action .btn {
    width: 100%;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 600;
}

.savings-tip {
    color: #e74c3c;
    font-weight: bold;
    font-size: 14px;
    margin-top: 5px;
}

/* 产品对比说明样式 */
.comparison-section {
    background: white;
    border-radius: 15px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin-top: 60px;
}

.comparison-section h3 {
    font-size: 2rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 30px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.comparison-item {
    text-align: center;
    padding: 20px;
}

.comparison-item h4 {
    color: #333;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.comparison-item p {
    color: #666;
    line-height: 1.6;
    font-size: 1rem;
}

.pricing-header {
    margin-bottom: 20px;
}

.pricing-header h3 {
    color: #2c3e50;
    font-size: 24px;
    margin-bottom: 10px;
    font-weight: 600;
}

.pricing-card.free-card .pricing-header h3 {
    color: white;
}

.price {
    font-size: 36px;
    font-weight: 700;
    color: #667eea;
}

.pricing-card.free-card .price {
    color: white;
}

.price span {
    font-size: 18px;
    font-weight: 400;
    color: #6c757d;
}

.pricing-features {
    margin: 20px 0;
    min-height: 80px;
}

.pricing-features p {
    color: #546e7a;
    font-size: 16px;
    line-height: 1.6;
    margin: 8px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.pricing-card.free-card .pricing-features p {
    color: rgba(255, 255, 255, 0.9);
}

.pricing-action {
    margin-top: 20px;
}

.pricing-action .btn {
    width: 100%;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 600;
}

.savings-tip {
    color: #e74c3c;
    font-weight: bold;
    font-size: 14px;
    margin-top: 5px;
}

/* 产品对比说明样式 */
.comparison-section {
    background: white;
    border-radius: 15px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin-top: 60px;
}

.comparison-section h3 {
    font-size: 2rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 30px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.comparison-item {
    text-align: center;
    padding: 20px;
}

.comparison-item h4 {
    color: #333;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.comparison-item p {
    color: #666;
    line-height: 1.6;
    font-size: 1rem;
}

.pricing-header {
    margin-bottom: 20px;
}

.pricing-header h3 {
    color: #2c3e50;
    font-size: 24px;
    margin-bottom: 10px;
    font-weight: 600;
}

.pricing-card.free-card .pricing-header h3 {
    color: white;
}

.price {
    font-size: 36px;
    font-weight: 700;
    color: #667eea;
}

.pricing-card.free-card .price {
    color: white;
}

.price span {
    font-size: 18px;
    font-weight: 400;
    color: #6c757d;
}

.pricing-features {
    margin: 20px 0;
    min-height: 80px;
}

.pricing-features p {
    color: #546e7a;
    font-size: 16px;
    line-height: 1.6;
    margin: 8px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.pricing-card.free-card .pricing-features p {
    color: rgba(255, 255, 255, 0.9);
}

.pricing-action {
    margin-top: 20px;
}

.pricing-action .btn {
    width: 100%;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 600;
}

.savings-tip {
    color: #e74c3c;
    font-weight: bold;
    font-size: 14px;
    margin-top: 5px;
}

/* 产品对比说明样式 */
.comparison-section {
    background: white;
    border-radius: 15px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin-top: 60px;
}

.comparison-section h3 {
    font-size: 2rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 30px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.comparison-item {
    text-align: center;
    padding: 20px;
}

.comparison-item h4 {
    color: #333;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.comparison-item p {
    color: #666;
    line-height: 1.6;
    font-size: 1rem;
}

/* 对比图样式 */
.comparison-section {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.comparison-section h3 {
    color: #333;
    font-size: 24px;
    margin-bottom: 20px;
    text-align: center;
}

.comparison-content {
    display: flex;
    gap: 30px;
    align-items: flex-start;
}

.comparison-image {
    width: 100%;
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.comparison-description {
    flex: 1;
}

.comparison-description p {
    color: #666;
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 20px;
}

.comparison-points {
    display: grid;
    gap: 15px;
}

.point {
    display: flex;
    align-items: center;
    gap: 10px;
}

.point i {
    color: #28a745;
    font-size: 18px;
}

.point span {
    color: #333;
    font-weight: 500;
}

/* 演示样式 */
.demo-section {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.demo-section h3 {
    color: #333;
    font-size: 24px;
    margin-bottom: 20px;
    text-align: center;
}

.demo-content {
    display: flex;
    gap: 30px;
    align-items: flex-start;
}

.demo-gif {
    width: 100%;
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.demo-description {
    flex: 1;
}

.demo-description p {
    color: #666;
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 20px;
}

.demo-steps {
    display: grid;
    gap: 15px;
    margin-bottom: 25px;
}

.step {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px 15px;
    background: #f8f9fa;
    border-radius: 8px;
}

.step-number {
    width: 30px;
    height: 30px;
    background: #667eea;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.demo-tips h4 {
    color: #333;
    margin-bottom: 10px;
}

.demo-tips ul {
    color: #666;
    line-height: 1.6;
    padding-left: 20px;
}

.demo-tips li {
    margin-bottom: 8px;
}

/* 全屏图片样式 */
.fullscreen-img {
    width: 100%;
    max-width: 100%;
    height: auto;
    max-height: 80vh;
    object-fit: contain;
    border-radius: 10px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
    margin: 20px 0;
    display: block;
}

.demo-caption {
    color: #666;
    font-size: 16px;
    font-weight: 500;
    text-align: center;
    margin-top: 10px;
    margin-bottom: 20px;
}

/* 操作演示区域样式 */
.operation-section {
    border-radius: 15px;
    padding: 40px;
    margin-top: 40px;
}

.operation-section h3 {
    font-size: 28px;
    color: #333;
    text-align: center;
    margin-bottom: 30px;
    font-weight: 600;
}

/* 操作演示模态框样式 */
.operation-gif-container {
    text-align: center;
    margin-bottom: 25px;
}

.operation-gif {
    width: 100%;
    max-width: 600px;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.operation-description {
    margin-bottom: 20px;
}

.operation-description p {
    color: #666;
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 20px;
    text-align: center;
}