/**
 * WP AI 问答 - 前端样式
 * 百度知道风格展示
 */

/* CSS Variables */
:root {
    --qa-primary: #00C36A;
    --qa-primary-dark: #00a855;
    --qa-primary-light: #e6f7ed;
    --qa-text-main: #333333;
    --qa-text-secondary: #666666;
    --qa-text-muted: #999999;
    --qa-bg-page: #f5f6f8;
    --qa-bg-card: #ffffff;
    --qa-border: #e0e0e0;
    --qa-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    --qa-radius: 8px;
    --qa-font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* Main Container */
.qa-container {
    max-width: 800px;
    margin: 0 auto;
    font-family: var(--qa-font-family);
    color: var(--qa-text-main);
    line-height: 1.6;
}

/* 百度SEO优化 - 内容区域更大气 */
@media (min-width: 1200px) {
    .qa-container {
        max-width: 900px;
    }
}

/* Question Section */
.qa-question {
    background: var(--qa-bg-card);
    border-radius: var(--qa-radius);
    padding: 28px;
    margin-bottom: 24px;
    box-shadow: var(--qa-shadow);
    border: 1px solid #f0f0f0;
}

.qa-question-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 12px;
}

.qa-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}

.qa-badge-question {
    background: #e3f2fd;
    color: #1976d2;
}

.qa-badge-answer {
    background: var(--qa-primary-light);
    color: var(--qa-primary-dark);
}

.qa-badge-normal {
    background: #f5f5f5;
    color: #666666;
}

/* 补充回答徽章 */
.qa-badge-supplement {
    background: #e3f2fd;
    color: #1976d2;
}

.qa-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 13px;
    color: var(--qa-text-secondary);
    flex-wrap: wrap;
}

.qa-asker,
.qa-answerer {
    display: flex;
    align-items: center;
    gap: 6px;
}

.qa-avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    object-fit: cover;
}

.qa-avatar-lg {
    width: 32px;
    height: 32px;
}

.qa-question-title {
    font-size: 24px;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0 0 20px 0;
    line-height: 1.4;
    letter-spacing: -0.5px;
}

.qa-question-content {
    font-size: 16px;
    line-height: 1.75;
    color: #3d3d3d;
}

.qa-question-content p {
    margin-bottom: 10px;
}

.qa-tags {
    margin-top: 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.qa-tag {
    display: inline-block;
    padding: 4px 10px;
    background: #f0f0f0;
    color: var(--qa-text-secondary);
    border-radius: 4px;
    font-size: 12px;
    text-decoration: none;
    transition: all 0.2s;
}

.qa-tag:hover {
    background: var(--qa-primary-light);
    color: var(--qa-primary);
}

/* Answer Section */
.qa-answer {
    background: var(--qa-bg-card);
    border-radius: var(--qa-radius);
    padding: 28px;
    margin-bottom: 24px;
    box-shadow: var(--qa-shadow);
    border: 1px solid #f0f0f0;
    border-left: 4px solid var(--qa-primary);
}

/* 最佳答案 */
.qa-answer-best {
    border-left: 4px solid var(--qa-primary);
}

/* 普通回答 */
.qa-answer-normal {
    border-left: 4px solid #999999;
    background: #fafafa;
}

/* 补充回答 */
.qa-answer-supplement {
    border-left: 4px solid #1976d2;
    background: #fafafa;
}

.qa-answer-header {
    margin-bottom: 16px;
}

.qa-answer-content {
    position: relative;
}

.qa-answer-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--qa-border);
}

.qa-answerer-info {
    display: flex;
    flex-direction: column;
}

.qa-answerer-name {
    font-weight: 600;
    color: var(--qa-primary-dark);
    font-size: 15px;
}

.qa-answer-date {
    font-size: 12px;
    color: var(--qa-text-muted);
}

.qa-answer-text {
    font-size: 16px;
    line-height: 1.7;
    color: var(--qa-text-main);
}

.qa-answer-text p {
    margin-bottom: 10px;
}

/* 控制br换行间距 - 让内容更紧凑 */
.qa-answer-text br {
    display: block;
    content: "";
    margin-top: 0;
    margin-bottom: 0;
    line-height: 1;
}

.qa-no-answer {
    color: var(--qa-text-muted);
    font-style: italic;
}

/* Related Q&A */
.qa-related {
    background: var(--qa-bg-card);
    border-radius: var(--qa-radius);
    padding: 24px;
    box-shadow: var(--qa-shadow);
    border: 1px solid #f0f0f0;
}

.qa-related-title {
    font-size: 16px;
    font-weight: 600;
    margin: 0 0 16px 0;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--qa-border);
}

.qa-related-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.qa-related-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid #f0f0f0;
}

.qa-related-item:last-child {
    border-bottom: none;
}

.qa-related-link {
    color: #333;
    text-decoration: none;
    font-size: 14px;
    flex: 1;
    margin-right: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.qa-related-link:hover {
    color: var(--qa-primary);
}

.qa-related-views {
    font-size: 12px;
    color: var(--qa-text-muted);
    white-space: nowrap;
}

/* Mobile Responsive */
@media screen and (max-width: 768px) {
    .qa-question,
    .qa-answer,
    .qa-related {
        padding: 18px;
        border-radius: 8px;
        margin-left: 0;
        margin-right: 0;
        margin-bottom: 16px;
    }

    .qa-question-title {
        font-size: 20px;
    }

    .qa-question-content,
    .qa-answer-text {
        font-size: 15px;
        line-height: 1.7;
    }

    .qa-meta {
        font-size: 12px;
        gap: 10px;
    }

    .qa-badge {
        font-size: 11px;
        padding: 3px 8px;
    }

    .qa-answerer-name {
        font-size: 14px;
    }

    .qa-tags {
        gap: 6px;
    }

    .qa-tag {
        font-size: 11px;
        padding: 3px 8px;
    }

    .qa-related-link {
        font-size: 14px;
    }

    /* 移动端br间距更紧凑 */
    .qa-answer-text br {
        margin-top: 0;
        margin-bottom: 0;
        line-height: 1;
    }
}

/* Small Mobile */
@media screen and (max-width: 480px) {
    .qa-question-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .qa-avatar {
        width: 20px;
        height: 20px;
    }

    .qa-avatar-lg {
        width: 28px;
        height: 28px;
    }

    .qa-question-title {
        font-size: 18px;
    }

    .qa-question,
    .qa-answer,
    .qa-related {
        padding: 16px;
    }
}

/* Animation Effects */
@keyframes qa-fade-in {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.qa-question,
.qa-answer,
.qa-related {
    animation: qa-fade-in 0.3s ease-out;
}

/* Loading State */
.qa-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: var(--qa-text-muted);
}

.qa-loading::after {
    content: '';
    width: 20px;
    height: 20px;
    border: 2px solid var(--qa-border);
    border-top-color: var(--qa-primary);
    border-radius: 50%;
    margin-left: 10px;
    animation: qa-spin 0.8s linear infinite;
}

@keyframes qa-spin {
    to {
        transform: rotate(360deg);
    }
}

/* Print Styles */
@media print {
    .qa-question,
    .qa-answer,
    .qa-related {
        box-shadow: none;
        border: 1px solid #ddd;
    }

    .qa-tags {
        display: none;
    }
}

/* HTML Content Styling */
.qa-question-content strong,
.qa-answer-text strong,
.qa-question-content b,
.qa-answer-text b {
    font-weight: 700;
    color: #1a1a1a;
}

.qa-question-content em,
.qa-answer-text em {
    font-style: italic;
    color: #555;
}

.qa-question-content u,
.qa-answer-text u {
    text-decoration: underline;
}

/* Code Blocks */
.qa-question-content pre,
.qa-answer-text pre {
    background: #2d2d2d;
    border: 1px solid #404040;
    border-radius: 6px;
    padding: 14px;
    margin: 12px 0;
    overflow-x: auto;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.5;
    color: #e0e0e0;
}

.qa-question-content code,
.qa-answer-text code {
    background: #f5f5f5;
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9em;
    color: #e83e8c;
}

.qa-question-content pre code,
.qa-answer-text pre code {
    background: none;
    padding: 0;
    color: inherit;
}

/* Lists */
.qa-question-content ul,
.qa-answer-text ul,
.qa-question-content ol,
.qa-answer-text ol {
    margin: 10px 0;
    padding-left: 22px;
}

.qa-question-content li,
.qa-answer-text li {
    margin-bottom: 6px;
    line-height: 1.65;
}

/* Links */
.qa-question-content a,
.qa-answer-text a {
    color: var(--qa-primary);
    text-decoration: none;
}

.qa-question-content a:hover,
.qa-answer-text a:hover {
    text-decoration: underline;
}

/* Tables */
.qa-question-content table,
.qa-answer-text table {
    width: 100%;
    border-collapse: collapse;
    margin: 12px 0;
    font-size: 14px;
}

.qa-question-content th,
.qa-answer-text th,
.qa-question-content td,
.qa-answer-text td {
    border: 1px solid #e0e0e0;
    padding: 8px 12px;
    text-align: left;
    line-height: 1.5;
}

.qa-question-content th,
.qa-answer-text th {
    background: #f8f8f8;
    font-weight: 600;
    color: #333;
}

/* Blockquotes */
.qa-question-content blockquote,
.qa-answer-text blockquote {
    border-left: 3px solid var(--qa-primary);
    background: #f8f9fa;
    margin: 12px 0;
    padding: 10px 14px;
    font-style: italic;
    color: #555;
    line-height: 1.6;
}

/* Headings */
.qa-question-content h1,
.qa-answer-text h1,
.qa-question-content h2,
.qa-answer-text h2,
.qa-question-content h3,
.qa-answer-text h3,
.qa-question-content h4,
.qa-answer-text h4,
.qa-question-content h5,
.qa-answer-text h5,
.qa-question-content h6,
.qa-answer-text h6 {
    margin: 16px 0 10px 0;
    font-weight: 600;
    line-height: 1.4;
    color: #1a1a1a;
}

.qa-question-content h1,
.qa-answer-text h1 {
    font-size: 22px;
}

.qa-question-content h2,
.qa-answer-text h2 {
    font-size: 19px;
}

.qa-question-content h3,
.qa-answer-text h3 {
    font-size: 17px;
}

.qa-question-content h4,
.qa-answer-text h4 {
    font-size: 16px;
}

/* Deleted text */
.qa-question-content del,
.qa-answer-text del {
    text-decoration: line-through;
    color: #999;
}

/* Horizontal line */
.qa-question-content hr,
.qa-answer-text hr {
    border: none;
    border-top: 1px solid #e8e8e8;
    margin: 14px 0;
}

/* Inline elements spacing */
.qa-question-content strong + strong,
.qa-answer-text strong + strong {
    margin-left: 4px;
}