/* 提取自 base.html 的 CSS */
:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #8b5cf6;
    --accent-color: #ec4899;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --text-light: #9ca3af;
    --bg-primary: #1f2937;
    --bg-secondary: #111827;
    --bg-tertiary: #374151;
    --border-color: #374151;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    transition: var(--transition);
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 30px 0;
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 15px;
}

header h1 {
    font-size: 28px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.theme-toggle {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    padding: 10px 15px;
    border-radius: 8px;
    color: white;
    cursor: pointer;
    font-size: 18px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 5px;
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

.search-box {
    margin-top: 20px;
    display: flex;
    gap: 10px;
    max-width: 600px;
}

.search-box form {
    display: flex;
    gap: 10px;
    flex: 1;
}

.search-box input {
    flex: 1;
    padding: 12px 20px;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    background: rgba(255, 255, 255, 0.95);
    color: var(--text-primary);
    transition: var(--transition);
}

.search-box input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
}

.search-box button {
    padding: 12px 24px;
    background: rgba(255, 255, 255, 0.95);
    color: var(--primary-color);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 600;
    font-size: 15px;
    transition: var(--transition);
    white-space: nowrap;
}

.search-box button:hover {
    background: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.filter-box {
    margin: 20px 0;
    padding: 20px;
    background: var(--bg-primary);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.filter-group {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    align-items: center;
}

.filter-group label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 14px;
}

.filter-group select {
    padding: 10px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    background: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
}

.filter-group select:hover {
    border-color: var(--primary-color);
}

.filter-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
    margin-top: 24px;
}

.article-card {
    background: var(--bg-primary);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
}

.article-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.article-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    opacity: 0;
    transition: var(--transition);
}

.article-card:hover::before {
    opacity: 1;
}

.article-card-img-wrapper {
    position: relative;
    overflow: hidden;
    height: 200px;
    background: var(--bg-tertiary);
}

.article-card-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.article-card-img-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-light);
    font-size: 48px;
}

.article-card-content {
    padding: 20px;
}

.article-card h3 {
    font-size: 18px;
    margin-bottom: 12px;
    color: var(--text-primary);
    line-height: 1.4;
    font-weight: 600;
}

.article-card .meta {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.article-card .meta strong {
    color: var(--primary-color);
}

.article-card .summary {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-card .feed-tag {
    display: inline-block;
    padding: 6px 12px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    margin-top: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pagination {
    margin-top: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.pagination button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 16px;
    background: var(--bg-primary);
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
}

.pagination button:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.pagination button.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-color: transparent;
}

.pagination span {
    color: var(--text-secondary);
    padding: 0 8px;
}

footer {
    margin-top: 60px;
    padding: 30px 20px;
    text-align: center;
    color: var(--text-secondary);
    background: var(--bg-primary);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

footer p {
    margin: 5px 0;
}

.article-detail {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 40px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    margin-top: 20px;
}

.article-detail h1 {
    font-size: 36px;
    margin-bottom: 20px;
    color: var(--text-primary);
    line-height: 1.3;
    font-weight: 700;
}

.article-detail .meta {
    color: var(--text-secondary);
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

.article-detail .meta strong {
    color: var(--text-primary);
}

.article-detail .content {
    font-size: 17px;
    line-height: 1.8;
    color: var(--text-primary);
    white-space: pre-wrap;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    padding: 10px 16px;
    border-radius: 8px;
    transition: var(--transition);
}

.back-link:hover {
    background: var(--bg-tertiary);
    transform: translateX(-4px);
}

/* 回到顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1000;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* 加载动画 */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }

    header h1 {
        font-size: 24px;
    }

    .header-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .search-box {
        max-width: 100%;
    }

    .articles-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .article-detail {
        padding: 20px;
    }

    .article-detail h1 {
        font-size: 28px;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

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

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

/* 无结果样式 */
.no-results {
    text-align: center;
    padding: 80px 40px;
    background: var(--bg-primary);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.no-results-icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.no-results h3 {
    font-size: 20px;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.no-results p {
    color: var(--text-secondary);
}

/* 抓取按钮样式 */
.scrape-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    margin-right: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.scrape-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.scrape-btn:active {
    transform: translateY(0);
}

/* 抓取面板样式 */
.scrape-panel {
    background: var(--bg-primary);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    margin-bottom: 24px;
    box-shadow: var(--shadow-md);
    overflow: hidden;
    opacity: 0;
    transform: translateY(-20px);
    transition: all 0.3s ease;
}

.scrape-panel.show {
    opacity: 1;
    transform: translateY(0);
}

.scrape-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.scrape-panel-header h3 {
    margin: 0;
    font-size: 18px;
    color: var(--text-primary);
}

.close-btn {
    background: none;
    border: none;
    font-size: 28px;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    transition: var(--transition);
}

.close-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.scrape-panel-content {
    padding: 24px;
}

.scrape-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.scrape-option-btn {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    display: flex;
    align-items: center;
    gap: 16px;
}

.scrape-option-btn:hover:not(.disabled) {
    border-color: var(--primary-color);
    background: var(--bg-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.scrape-option-btn.disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.scrape-option-btn .icon {
    font-size: 32px;
    flex-shrink: 0;
}

.scrape-option-btn strong {
    display: block;
    color: var(--text-primary);
    margin-bottom: 4px;
    font-size: 16px;
}

.scrape-option-btn p {
    color: var(--text-secondary);
    font-size: 13px;
    margin: 0;
}

.scrape-all-btn {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
}

.scrape-all-btn:hover:not(.disabled) {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(139, 92, 246, 0.2));
}

/* 抓取状态样式 */
.scrape-status {
    margin-top: 24px;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.status-message {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 16px;
}

.status-message.success {
    color: var(--success-color);
}

.status-message.error {
    color: var(--error-color);
}

.success-icon, .error-icon {
    font-size: 20px;
}

.loading-spinner {
    width: 20px;
    height: 20px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.result-details {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.result-item {
    display: flex;
    gap: 20px;
    padding: 12px;
    background: var(--bg-primary);
    border-radius: 6px;
    font-size: 14px;
}

.result-item span {
    color: var(--text-secondary);
}

.result-item strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .scrape-options {
        grid-template-columns: 1fr;
    }

    .scrape-btn {
        padding: 8px 16px;
        font-size: 13px;
    }

    .result-item {
        flex-direction: column;
        gap: 8px;
    }
}