/* 支持服务概览 */
.support-overview {
    background: #f8f9fa;
    padding: 80px 0;
}

.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.support-card {
    background: white;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.support-card:hover {
    transform: translateY(-10px);
}

.support-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #d8b43d, #e7d05e);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.support-icon i {
    font-size: 2rem;
    color: white;
}

.support-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: #2c3e50;
}

.support-card p {
    color: #666;
    line-height: 1.6;
}

/* 快速帮助 */
.quick-help {
    background: white;
    padding: 60px 0;
    border-bottom: 1px solid #eee;
}

.quick-help h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 40px;
    color: #2c3e50;
}

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

.help-search input {
    width: 100%;
    padding: 15px 60px 15px 20px;
    border: 2px solid #ddd;
    border-radius: 50px;
    font-size: 1.1rem;
    transition: border-color 0.3s ease;
}

.help-search input:focus {
    outline: none;
    border-color: #d8b43d;
    box-shadow: 0 0 0 3px rgba(216, 180, 61, 0.1);
}

.search-btn {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    background: #d8b43d;
    color: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    transition: background 0.3s ease;
}

.search-btn:hover {
    background: #c19b2f;
}

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

.faq-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: #2c3e50;
}

.faq-categories {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.faq-tab {
    padding: 12px 24px;
    border: 2px solid #d8b43d;
    background: transparent;
    color: #d8b43d;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.faq-tab:hover,
.faq-tab.active {
    background: #d8b43d;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(216, 180, 61, 0.3);
}

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

.faq-group {
    display: none;
}

.faq-group.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

.faq-item {
    background: white;
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    overflow: hidden;
}

.faq-question {
    padding: 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.3s ease;
}

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

.faq-question h3 {
    margin: 0;
    font-size: 1.1rem;
    color: #2c3e50;
}

.faq-question i {
    color: #d8b43d;
    transition: transform 0.3s ease;
}

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

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

.faq-item.active .faq-answer {
    padding: 0 20px 20px;
    max-height: 500px;
}

.faq-answer p {
    margin-bottom: 15px;
    color: #666;
}

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

.faq-answer li {
    margin-bottom: 8px;
    color: #666;
}

/* 联系支持 */
.contact-support {
    background: white;
    padding: 80px 0;
}

.contact-support h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: #2c3e50;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.contact-method {
    background: #f8f9fa;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    transition: transform 0.3s ease;
}

.contact-method:hover {
    transform: translateY(-5px);
}

.method-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #d8b43d, #e7d05e);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.method-icon i {
    font-size: 1.8rem;
    color: white;
}

.contact-method h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: #2c3e50;
}

.contact-method p {
    color: #d8b43d;
    font-weight: 600;
    margin-bottom: 5px;
}

.method-time {
    display: block;
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.contact-btn {
    background: #d8b43d;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    transition: background 0.3s ease;
}

.contact-btn:hover {
    background: #c19b2f;
}

/* 支持表单 */
.support-form {
    background: #f8f9fa;
    padding: 80px 0;
}

.support-form h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: #2c3e50;
}

.support-request-form {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #d8b43d;
    box-shadow: 0 0 0 3px rgba(216, 180, 61, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-group small {
    display: block;
    margin-top: 5px;
    color: #666;
    font-size: 0.9rem;
}

.form-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 30px;
}

.form-actions .btn {
    padding: 12px 30px;
    font-size: 1rem;
}

/* 动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .support-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .quick-help h2,
    .faq-section h2,
    .contact-support h2,
    .support-form h2 {
        font-size: 2rem;
    }
    
    .faq-categories {
        gap: 10px;
    }
    
    .faq-tab {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .contact-methods {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .support-request-form {
        padding: 30px 20px;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .form-actions .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .support-card {
        padding: 30px 20px;
    }
    
    .help-search input {
        padding: 12px 50px 12px 15px;
        font-size: 1rem;
    }
    
    .search-btn {
        width: 40px;
        height: 40px;
    }
    
    .faq-question {
        padding: 15px;
    }
    
    .faq-question h3 {
        font-size: 1rem;
    }
    
    .contact-method {
        padding: 30px 20px;
    }
    
    .support-request-form {
        padding: 20px 15px;
    }
}

/* 搜索高亮 */
.search-highlight {
    background: yellow;
    padding: 2px;
}

/* 表单验证样式 */
.form-group.error input,
.form-group.error select,
.form-group.error textarea {
    border-color: #e74c3c;
}

.form-group.error .error-message {
    color: #e74c3c;
    font-size: 0.9rem;
    margin-top: 5px;
}

.form-group.success input,
.form-group.success select,
.form-group.success textarea {
    border-color: #27ae60;
} 

/* 技术支持页面样式 */

/* 页面标题 */
.page-header {
    background: url('../技术支持/技术支持.jpg') center/cover no-repeat;
    color: white;
    text-align: center;
    padding: 120px 20px 80px;
    margin-top: 70px;
    min-height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease;
    text-shadow: 0 2px 6px rgba(0,0,0,0.4);
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.2s both;
    text-shadow: 0 1px 4px rgba(0,0,0,0.35);
}

.page-header .container {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

/* 提升标题在亮背景图上的可读性 */
.page-header h1,
.page-header p {
    display: inline-block;
    background: rgba(0, 0, 0, 0.35);
    padding: 8px 16px;
    border-radius: 8px;
}

/* 视频教程 */
.video-tutorials {
    padding: 80px 0;
    background: #f8f9fa;
}

.video-tutorials h2 {
    text-align: center;
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 60px;
    position: relative;
}

.video-tutorials h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, #d8b43d, #e7d05e);
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.video-item {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.video-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}

.video-container {
    position: relative;
    width: 100%;
    background: #000;
    overflow: hidden;
}

.video-container video {
    width: 100%;
    height: auto;
    display: block;
    cursor: pointer;
    transition: transform 0.3s ease;
    border-radius: 10px 10px 0 0;
}

.video-container video:hover {
    transform: scale(1.02);
}

.video-info {
    padding: 20px;
    min-height: 80px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.video-info h3 {
    font-size: 1.2rem;
    color: #2c3e50;
    margin-bottom: 8px;
    font-weight: 600;
    line-height: 1.4;
}

.video-info p {
    color: #666;
    line-height: 1.6;
    margin: 0;
    font-size: 0.9rem;
}

/* 视频控制栏样式优化 - 已移除全局规则 */

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

/* 响应式设计 */
@media (max-width: 768px) {
    .page-header h1 {
        font-size: 2.5rem;
    }
    
    .page-header {
        min-height: 260px;
    }
    
    .video-tutorials h2 {
        font-size: 2rem;
    }
    
    .video-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .video-info {
        padding: 20px;
    }
    
    .video-info h3 {
        font-size: 1.3rem;
    }
}

@media (max-width: 480px) {
    .page-header {
        padding: 100px 20px 60px;
        min-height: 220px;
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
    
    .video-tutorials {
        padding: 60px 0;
    }
    
    .video-tutorials h2 {
        font-size: 1.8rem;
    }
}



/* 视频信息卡片悬停效果 */
.video-item {
    position: relative;
    overflow: hidden;
}

.video-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(216, 180, 61, 0.1), transparent);
    transition: left 0.5s ease;
}

.video-item:hover::before {
    left: 100%;
}

/* 视频卡片样式 */
.video-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.video-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}

/* 视频缩略图样式 */
.video-thumbnail {
    position: relative;
    width: 100%;
    height: 200px;
    background: #000;
    overflow: hidden;
}

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.video-card:hover .video-thumbnail img {
    transform: scale(1.05);
}

.play-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.9;
    transition: all 0.3s ease;
}

.video-card:hover .play-icon {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.1);
}

/* 空数据提示 */
.empty-message {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: #999;
    font-size: 1.2rem;
}

/* 视频弹窗样式 */
.video-modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    animation: fadeIn 0.3s ease;
}

.video-modal.active {
    display: block;
}

.modal-content {
    position: relative;
    background-color: #fff;
    margin: 5% auto;
    padding: 0;
    border-radius: 15px;
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow: visible;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.3s ease;
    z-index: 10001;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 30px 10px;
    background: #000;
    color: rgba(255,255,255,0.82);
    position: relative;
}

.modal-header h3 {
    margin: 0;
    width: 100%;
    text-align: center;
    font-size: 1.3rem;
    font-weight: 600;
}

.close-btn {
    background: none;
    border: none;
    color: rgba(255,255,255,0.82);
    font-size: 24px;
    cursor: pointer;
    padding: 5px 10px;
    border-radius: 4px;
    transition: background 0.3s ease;
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
}

.close-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.modal-body {
    padding: 12px 20px 20px;
    background: #000;
}

.modal-body video {
    width: 100%;
    height: auto;
    border-radius: 8px;
}

/* 弹窗动画 */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* 响应式弹窗 */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        margin: 10% auto;
    }
    
    .modal-header {
        padding: 15px 20px;
    }
    
    .modal-header h3 {
        font-size: 1.1rem;
    }
    
    .close-btn {
        width: 35px;
        height: 35px;
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .modal-content {
        width: 98%;
        margin: 5% auto;
    }
    
    .modal-header {
        padding: 12px 15px;
    }
    
    .modal-header h3 {
        font-size: 1rem;
    }
}