/**
 * 使用帮助页面样式
 */

/* 容器布局 */
.help-page {
    height: 100%;
}

.help-container {
    display: flex;
    gap: 24px;
    min-height: calc(100vh - 200px);
}

/* 侧边栏 */
.help-sidebar {
    width: 280px;
    flex-shrink: 0;
    background: var(--color-bg-secondary);
    border-radius: 12px;
    padding: 16px;
    position: sticky;
    top: 24px;
    max-height: calc(100vh - 180px);
    overflow-y: auto;
}

.help-search {
    margin-bottom: 16px;
}

.help-search .form-input {
    width: 100%;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
}

/* 导航菜单 */
.help-nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.help-nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 8px;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: all 0.2s ease;
}

.help-nav-item:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

.help-nav-item.active {
    background: var(--color-primary);
    color: var(--color-text-inverse);
}

.help-nav-icon {
    font-size: 18px;
}

.help-nav-title {
    font-size: 14px;
    font-weight: 500;
}

/* 内容区域 */
.help-content {
    flex: 1;
    min-width: 0;
    background: var(--color-bg-secondary);
    border-radius: 12px;
    padding: 32px;
    overflow-y: auto;
    max-height: calc(100vh - 180px);
}

.help-article {
    max-width: 800px;
    line-height: 1.8;
}

.help-article h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-border);
}

.help-article h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 24px 0 12px 0;
}

.help-article p {
    color: var(--color-text-secondary);
    margin-bottom: 16px;
}

.help-article ul,
.help-article ol {
    margin: 12px 0 20px 24px;
    color: var(--color-text-secondary);
}

.help-article li {
    margin-bottom: 8px;
}

.help-article li strong {
    color: var(--color-text-primary);
}

/* 表格样式 */
.help-table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0 24px 0;
    background: var(--color-bg-tertiary);
    border-radius: 8px;
    overflow: hidden;
}

.help-table th,
.help-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.help-table th {
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.help-table td {
    color: var(--color-text-secondary);
}

.help-table tr:last-child td {
    border-bottom: none;
}

.help-table tr:hover td {
    background: rgba(var(--color-primary-rgb), 0.05);
}

/* 键盘按键样式 */
kbd {
    display: inline-block;
    padding: 4px 8px;
    font-family: 'SF Mono', Monaco, 'Courier New', monospace;
    font-size: 12px;
    color: var(--color-text-primary);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* FAQ 样式 */
.faq-item {
    margin-bottom: 24px;
    padding: 20px;
    background: var(--color-bg-tertiary);
    border-radius: 8px;
    border-left: 4px solid var(--color-primary);
}

.faq-item h4 {
    margin: 0 0 12px 0 !important;
    color: var(--color-primary);
}

.faq-item p {
    margin-bottom: 8px;
}

.faq-item ul {
    margin: 8px 0 0 20px;
}

/* 布局图示 */
.help-layout-diagram {
    margin: 20px 0;
    border: 2px solid var(--color-border);
    border-radius: 8px;
    overflow: hidden;
}

.help-layout-diagram .layout-item {
    padding: 16px;
    text-align: center;
    font-size: 13px;
    color: var(--color-text-secondary);
}

.help-layout-diagram .header {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    font-weight: 500;
}

.help-layout-diagram .layout-row {
    display: flex;
}

.help-layout-diagram .diagram-sidebar {
    width: 120px;
    background: var(--color-bg-tertiary);
    border-right: 1px solid var(--color-border);
}

.help-layout-diagram .main {
    flex: 1;
    background: var(--color-bg-primary);
    min-height: 100px;
}

.help-layout-diagram .footer {
    padding: 16px;
    text-align: center;
    background: var(--color-bg-tertiary);
    border-top: 1px solid var(--color-border);
    font-size: 13px;
    color: var(--color-text-secondary);
}

/* 底部导航 */
.help-footer {
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
}

.help-module-card {
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.help-module-card h4 {
    margin: 0 0 0.5rem 0;
    color: var(--color-text-primary);
    font-size: 1.1rem;
}

.module-desc {
    color: var(--color-text-secondary);
    margin: 0.5rem 0;
    font-size: 0.95rem;
}

.module-features {
    margin: 0.75rem 0 0 0;
    padding-left: 1.5rem;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.module-features code {
    background: var(--code-bg, var(--color-bg-primary));
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-size: 0.85em;
    color: var(--code-text, var(--color-text-primary));
}

.help-note {
    padding: 1rem;
    background: var(--warning-bg, rgba(255, 193, 7, 0.1));
    border-left: 3px solid var(--color-warning, #ffc107);
    border-radius: 4px;
    color: var(--color-text-secondary);
}

.help-nav-buttons {
    display: flex;
    justify-content: space-between;
    gap: 16px;
}

.help-nav-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: var(--color-bg-tertiary);
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.2s ease;
    max-width: 45%;
}

.help-nav-btn:hover {
    background: var(--color-bg-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.help-nav-btn.prev {
    text-align: left;
}

.help-nav-btn.next {
    text-align: right;
    margin-left: auto;
}

.help-nav-btn .nav-arrow {
    font-size: 20px;
    color: var(--color-primary);
}

.help-nav-btn .nav-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.help-nav-btn .nav-label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.help-nav-btn .nav-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-primary);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .help-container {
        flex-direction: column;
    }

    .help-sidebar {
        width: 100%;
        position: static;
        max-height: none;
    }

    .help-nav {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 8px;
    }

    .help-nav-item {
        padding: 8px 12px;
    }

    .help-content {
        max-height: none;
    }
}

@media (max-width: 640px) {
    .help-content {
        padding: 20px;
    }

    .help-nav-buttons {
        flex-direction: column;
    }

    .help-nav-btn {
        max-width: 100%;
    }

    .help-nav-btn.next {
        margin-left: 0;
    }
}