/* 帮助中心主体 */
.help-center {
    padding: 40px 0;
    background: #f8f9fa;
}

.help-wrapper {
    display: flex;
    gap: 30px;
    align-items: flex-start;
}

/* 左侧侧边栏 */
.help-sidebar {
    width: 250px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    position: sticky;
    top: 90px;
}

.sidebar-title {
    padding: 20px;
    border-bottom: 1px solid #e8e8e8;
    font-weight: 600;
    font-size: 1.1rem;
    color: #333;
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-title i {
    color: #409EFF;
}

.category-list {
    list-style: none;
    padding: 10px 0;
    margin: 0;
}

.category-list li {
    margin-bottom: 0;
}

.category-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    color: #666;
    text-decoration: none;
    transition: all 0.3s;
    border-left: 3px solid transparent;
}

.category-item:hover {
    background: #f0f7ff;
    color: #409EFF;
}

.category-item i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

.category-list li.active {
    background: #e6f7ff;
}

.category-list li.active .category-item {
    color: #409EFF;
    border-left-color: #409EFF;
    font-weight: 500;
}

.category-item .count {
    background: #f0f0f0;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.85rem;
    color: #999;
}

/* 右侧内容区域 */
.help-content {
    flex: 1;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    padding: 30px;
}

/* 搜索框 */
.help-search {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
}

.search-input-wrapper {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
}

.search-input-wrapper i {
    position: absolute;
    left: 15px;
    color: #999;
}

.search-input-wrapper input {
    width: 100%;
    padding: 12px 15px 12px 45px;
    border: 2px solid #e8e8e8;
    border-radius: 6px;
    font-size: 1rem;
    transition: all 0.3s;
}

.search-input-wrapper input:focus {
    outline: none;
    border-color: #409EFF;
}

.help-search .search-btn {
    padding: 0 30px;
    background: #409EFF;
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.3s;
}

.help-search .search-btn:hover {
    background: #53a8ff;
}

/* 帮助区域 */
.help-section {
    margin-bottom: 40px;
}

.help-section:last-of-type {
    margin-bottom: 0;
}

.section-header {
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #f0f0f0;
}

.section-header h2 {
    font-size: 1.5rem;
    color: #333;
    margin-bottom: 5px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-header h2 i {
    color: #409EFF;
}

.section-desc {
    color: #999;
    font-size: 0.95rem;
}

/* FAQ列表 */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    border: 1px solid #e8e8e8;
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s;
}

.faq-item.active {
    border-color: #409EFF;
    box-shadow: 0 2px 12px rgba(64, 158, 255, 0.1);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    background: #fff;
    cursor: pointer;
    transition: background 0.3s;
}

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

.question-text {
    font-size: 1rem;
    color: #333;
    font-weight: 500;
}

.faq-question i {
    color: #999;
    transition: transform 0.3s;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
    color: #409EFF;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    background: #f8f9fa;
}

.faq-item.active .faq-answer {
    max-height: 1000px;
    transition: max-height 0.5s ease-in;
    padding: 10px 0;
}

.faq-answer > * {
    padding: 10px 20px;
}

.faq-answer p {
    margin: 0 0 0px 0;
    color: #666;
    line-height: 1.6;
    text-indent: -2em;
}

.faq-answer p:last-child {
    margin-bottom: 0;
}

.faq-answer ol {
    margin: 0 0 10px 0;
    padding-left: 20px;
    color: #666;
}

.faq-answer ol li {
    margin-bottom: 8px;
    line-height: 1.6;
}

.faq-answer ul {
    margin: 0 0 10px 0;
    padding-left: 20px;
    color: #666;
}

.faq-answer ul li {
    margin-bottom: 8px;
    line-height: 1.6;
}

.faq-answer .tip {
    background: #e6f7ff;
    padding: 12px 15px;
    border-radius: 4px;
    border-left: 3px solid #409EFF;
    color: #666;
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 10px auto 0px auto;
    text-indent: 0em;
    width: 96%;
}

.faq-answer .tip i {
    color: #409EFF;
}

.faq-answer .warning {
    background: #fffbe6;
    padding: 12px 15px;
    border-radius: 4px;
    border-left: 3px solid #faad14;
    color: #666;
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
}

.faq-answer .warning i {
    color: #faad14;
}

/* 教程卡片 */
.tutorial-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.tutorial-card {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    border: 1px solid #e8e8e8;
    border-radius: 8px;
    transition: all 0.3s;
    background: #fff;
}

.tutorial-card:hover {
    border-color: #409EFF;
    box-shadow: 0 4px 16px rgba(64, 158, 255, 0.15);
    transform: translateY(-2px);
}

.tutorial-icon {
    width: 50px;
    height: 50px;
    border-radius: 8px;
    background: linear-gradient(135deg, #2196F3 0%, #1976D2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.tutorial-icon i {
    font-size: 1.5rem;
    color: #fff;
}

.tutorial-info {
    flex: 1;
}

.tutorial-info h3 {
    font-size: 1.1rem;
    color: #333;
    margin: 0 0 8px 0;
    font-weight: 600;
}

.tutorial-desc {
    font-size: 0.9rem;
    color: #666;
    margin: 0 0 10px 0;
    line-height: 1.5;
}

.tutorial-meta {
    display: flex;
    gap: 15px;
    font-size: 0.85rem;
    color: #999;
}

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

.tutorial-meta i {
    font-size: 0.9rem;
}

.tutorial-btn {
    padding: 8px 16px;
    background: #409EFF;
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 0.9rem;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.3s;
    flex-shrink: 0;
}

.tutorial-btn:hover {
    background: #53a8ff;
}

/* 联系客服卡片 */
.contact-card {
    margin-top: 40px;
    padding: 30px;
    background: linear-gradient(135deg, #2196F3 0%, #1976D2 100%);
    border-radius: 8px;
}

.contact-content {
    display: flex;
    align-items: center;
    gap: 30px;
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 2rem;
    color: #fff;
}

.contact-text {
    flex: 1;
}

.contact-text h3 {
    font-size: 1.3rem;
    color: #fff;
    margin: 0 0 8px 0;
    font-weight: 600;
}

.contact-text p {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.9);
    margin: 0;
}

.contact-actions {
    display: flex;
    gap: 15px;
}

.contact-btn {
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 6px;
    font-size: 0.95rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s;
}

.contact-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.contact-btn.primary {
    background: #fff;
    color: #2196F3;
    border-color: #fff;
}

.contact-btn.primary:hover {
    background: rgba(255, 255, 255, 0.9);
}

.contact-btn i {
    font-size: 1rem;
}

/* 响应式设计 */
@media (max-width: 960px) {
    .tutorial-list {
        grid-template-columns: 1fr;
    }


    .help-center {
        padding: 20px 0;
    }

    .help-wrapper {
        flex-direction: column;
    }

    .help-sidebar {
        width: 100%;
        position: static;
    }

    .help-content {
        padding: 20px;
    }

    .contact-content {
        flex-direction: column;
        text-align: center;
    }

    .contact-actions {
        flex-direction: column;
        width: 100%;
    }

    .contact-btn {
        width: 100%;
        justify-content: center;
    }

    .faq-question {
        padding: 12px 15px;
    }

    .faq-answer > * {
        padding: 12px 15px;
    }
}