/* 产品说明资料 - 文档库风格 */

.page-header {
    padding: 180px 0 80px;
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    color: #fff;
    text-align: center;
}

.page-header h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 15px;
}

.page-header h1::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: #fff;
    margin: 20px auto 0;
    border-radius: 2px;
}

/* 搜索区 */
.docs-search {
    padding: 60px 0;
    background: #fff;
    border-bottom: 1px solid #eee;
}

.search-box {
    max-width: 700px;
    margin: 0 auto;
    position: relative;
}

.search-box input {
    width: 100%;
    padding: 20px 60px 20px 25px;
    border: 2px solid #e0e0e0;
    border-radius: 50px;
    font-size: 16px;
    transition: all 0.3s ease;
}

.search-box input:focus {
    outline: none;
    border-color: #11998e;
    box-shadow: 0 5px 20px rgba(17, 153, 142, 0.15);
}

.search-box button {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.search-box button:hover {
    transform: translateY(-50%) scale(1.05);
}

/* 文档分类 */
.docs-categories {
    padding: 100px 0;
    background: #f8f9fa;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 36px;
    font-weight: 700;
    color: #333;
    margin-bottom: 15px;
}

.section-header p {
    font-size: 16px;
    color: #666;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.category-card {
    background: #fff;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.category-card:hover {
    transform: translateY(-10px);
    border-color: #11998e;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
}

.category-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: #fff;
    margin-bottom: 25px;
}

.category-card h3 {
    font-size: 22px;
    font-weight: 600;
    color: #333;
    margin-bottom: 20px;
}

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

.doc-list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid #f0f0f0;
}

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

.doc-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.doc-info i {
    color: #11998e;
    font-size: 18px;
}

.doc-info span {
    font-size: 15px;
    color: #555;
}

.doc-meta {
    display: flex;
    align-items: center;
    gap: 15px;
}

.doc-meta span {
    font-size: 13px;
    color: #999;
}

.btn-download-small {
    padding: 6px 15px;
    background: #f0f0f0;
    border-radius: 20px;
    font-size: 13px;
    color: #555;
    transition: all 0.3s ease;
}

.btn-download-small:hover {
    background: #11998e;
    color: #fff;
}

/* 视频教程 */
.video-section {
    padding: 100px 0;
    background: #fff;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.video-card {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.video-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
}

.video-thumbnail {
    position: relative;
    height: 180px;
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-thumbnail i {
    font-size: 60px;
    color: #fff;
    opacity: 0.9;
}

.video-play {
    position: absolute;
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #11998e;
    transition: all 0.3s ease;
}

.video-card:hover .video-play {
    transform: scale(1.1);
    background: #fff;
}

.video-info {
    padding: 25px;
}

.video-info h3 {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
}

.video-info p {
    font-size: 14px;
    color: #666;
    margin-bottom: 15px;
}

.video-meta {
    display: flex;
    gap: 20px;
    font-size: 13px;
    color: #999;
}

.video-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

/* 常见问题 */
.faq-section {
    padding: 100px 0;
    background: #f8f9fa;
}

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

.faq-card {
    background: #fff;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.faq-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #f0f0f0;
}

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

.faq-list li {
    margin-bottom: 15px;
}

.faq-list li a {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    color: #555;
    transition: all 0.3s ease;
}

.faq-list li a:hover {
    color: #11998e;
}

.faq-list li a i {
    color: #11998e;
    font-size: 12px;
}

/* 联系支持 */
.support-section {
    padding: 100px 0;
    background: #fff;
}

.support-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.support-card {
    text-align: center;
    padding: 50px 40px;
    background: #fff;
    border-radius: 16px;
    border: 2px solid #f0f0f0;
    transition: all 0.3s ease;
}

.support-card:hover {
    border-color: #11998e;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.support-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: #fff;
}

.support-card h3 {
    font-size: 22px;
    font-weight: 600;
    color: #333;
    margin-bottom: 15px;
}

.support-card p {
    font-size: 15px;
    color: #666;
    margin-bottom: 25px;
}

.btn-support {
    display: inline-block;
    padding: 12px 30px;
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    border-radius: 25px;
    transition: all 0.3s ease;
}

.btn-support:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(17, 153, 142, 0.3);
}

/* 响应式 */
@media (max-width: 1024px) {
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .video-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .faq-grid {
        grid-template-columns: 1fr;
    }

    .support-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .page-header h1 {
        font-size: 32px;
    }

    .categories-grid {
        grid-template-columns: 1fr;
    }

    .video-grid {
        grid-template-columns: 1fr;
    }

    .support-grid {
        grid-template-columns: 1fr;
    }
}