/**
 * common.css - Dashboard 功能模块共享样式
 * AI创作 / 收藏 / 文件管理 / 思维导图 / 便签 / 工具 / 天气 / 新闻 / 技能中心
 * Nebula 主题 — 深色玻璃质感 + 紫蓝渐变
 *
 * 历史 3 层(ai-modules.css + modules-optimized.css + 统一覆盖层)已于 2026-07-06
 * 彻底合并:逐选择器收敛为单条,覆盖层 token 值优先,删死代码。
 */

/* ========== 模块容器与头部 ========== */
.ai-module-container {
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.module-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-light);
}

.header-left h2 {
    margin: 0 0 4px 0;
    font-size: 24px;
    color: var(--text-primary);
}

.header-left p {
    margin: 0;
    color: var(--text-muted);
    font-size: 14px;
}

.header-actions {
    display: flex;
    gap: 12px;
}

.header-stats {
    display: flex;
    gap: 20px;
}

.stat-mini {
    text-align: center;
}

.stat-mini .stat-num {
    display: block;
    font-size: 20px;
    font-weight: bold;
    color: var(--primary-light);
}

.stat-mini .stat-name {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .module-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
}

/* ========== 按钮 ========== */
.btn-secondary {
    padding: var(--space-2) var(--space-4);
    background: var(--border-light);
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition);
    min-height: 40px;
}

.btn-secondary:hover {
    background: var(--bg-hover);
}

.btn-small {
    flex: 1;
    padding: var(--space-2) var(--space-3);
    background: var(--border-light);
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: var(--text-xs);
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    transition: all var(--transition);
    min-height: 32px;
}

.btn-small:hover {
    background: var(--bg-hover);
    color: var(--primary-light);
}

.btn-icon {
    font-size: 18px;
    background: var(--border-light);
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 8px 12px;
    cursor: pointer;
    transition: all var(--transition);
    min-width: 40px;
    min-height: 40px;
}

.btn-icon:hover {
    background: var(--bg-hover);
}

.generate-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: var(--space-3) var(--space-5);
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-md);
    color: var(--bg-dark);
    font-size: var(--text-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    box-shadow: var(--shadow-glow);
    margin-top: 8px;
    min-height: 44px;
}

.generate-btn:hover {
    transform: translateY(-2px);
    background: var(--gradient-hover);
    box-shadow: var(--shadow-lg);
}

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

.generate-btn .btn-icon {
    font-size: 18px;
}

/* ========== 服务提供商/模型选择 ========== */
.provider-selector,
.model-selector {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.provider-card,
.model-card {
    flex: 1;
    min-width: 140px;
    padding: 16px;
    background: var(--bg-glass);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition);
    text-align: center;
}

.provider-card:hover,
.model-card:hover {
    background: var(--border);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.provider-card.active,
.model-card.active {
    border-color: var(--primary-light);
    background: var(--bg-hover);
    box-shadow: var(--shadow-glow);
}

.provider-badge,
.model-badge {
    display: block;
    font-size: 12px;
    color: var(--primary-light);
    margin-bottom: 4px;
}

.provider-name,
.model-name {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
}

.model-provider {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ========== 模块网格与面板 ========== */
.module-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

@media (max-width: 900px) {
    .module-grid {
        grid-template-columns: 1fr;
    }
}

.form-panel,
.preview-panel {
    background: var(--bg-glass);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
}

.preview-area {
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.preview-placeholder {
    text-align: center;
    color: var(--text-muted);
}

.placeholder-icon {
    font-size: 48px;
    display: block;
    margin-bottom: 12px;
}

.generating {
    text-align: center;
}

/* ========== 加载动画 ========== */
.loading-spinner {
    width: 40px;
    height: 40px;
    margin: 20px auto;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.sub-text {
    color: var(--text-muted);
    font-size: 13px;
}

/* ========== 结果展示 ========== */
.result-images,
.result-audio,
.result-video {
    width: 100%;
}

.result-area {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.result-success {
    text-align: center;
}

.result-success h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.result-error {
    padding: 16px;
    background: rgba(244, 63, 94, 0.1);
    border: 1px solid rgba(244, 63, 94, 0.2);
    border-radius: var(--radius-lg);
    color: var(--error);
    text-align: center;
}

.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.result-image-card {
    background: var(--bg-glass);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition);
}

.result-image-card:hover {
    border-color: var(--border-glow);
    box-shadow: var(--shadow-card);
}

.result-image-card img {
    width: 100%;
    height: auto;
    display: block;
}

.image-actions {
    padding: 12px;
    display: flex;
    gap: 8px;
}

/* 图片结果（单图，区别于上面的卡片容器） */
.result-image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--bg-secondary);
    aspect-ratio: 1;
}

.result-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition);
}

.result-image:hover img {
    transform: scale(1.05);
}

.result-image .download-btn {
    position: absolute;
    bottom: 12px;
    right: 12px;
    padding: 8px 16px;
    background: var(--bg-dark);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    font-size: 13px;
    text-decoration: none;
    opacity: 0;
    transform: translateY(10px);
    transition: all var(--transition);
}

.result-image:hover .download-btn {
    opacity: 1;
    transform: translateY(0);
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all var(--transition);
    margin-top: 16px;
}

.download-btn:hover {
    background: var(--bg-hover);
    border-color: var(--primary);
    color: var(--primary);
}

/* ========== 音频/视频播放器 ========== */
.audio-player-card,
.video-player-card {
    background: var(--bg-glass);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 20px;
}

.audio-wave {
    text-align: center;
    margin-bottom: 16px;
}

.wave-icon {
    font-size: 32px;
}

.audio-player,
.video-player {
    width: 100%;
    max-width: 400px;
    margin: 16px auto;
    border-radius: var(--radius-lg);
    background: var(--bg-secondary);
}

.audio-actions,
.video-actions {
    display: flex;
    gap: 12px;
}

/* ========== AI 表单卡片 ========== */
.ai-form-card {
    background: var(--bg-card);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 32px;
    max-width: 720px;
    position: relative;
    overflow: hidden;
}

.ai-form-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
}

.form-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.form-header h3 {
    font-size: 20px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 12px;
}

.price-badge {
    font-size: 12px;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: var(--radius-full);
}

.price-badge.free {
    background: var(--bg-hover);
    color: var(--primary);
}

.price-badge.paid {
    background: rgba(245, 158, 11, 0.12);
    color: var(--warning);
}

/* ========== 表单元素 ========== */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-size: 14px;
}

.form-group textarea,
.form-group select,
.form-group input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    box-sizing: border-box;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23a1a1aa' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.form-group textarea:hover,
.form-group select:hover,
.form-group input:hover {
    border-color: var(--primary);
}

.form-group textarea:focus,
.form-group select:focus,
.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--border-glow);
}

.form-group select option {
    background: var(--bg-card);
    color: var(--text-primary);
    padding: 10px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

@media (max-width: 600px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

.char-count {
    text-align: right;
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* 复选框组 */
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.checkbox-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px;
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
}

.checkbox-item:hover {
    background: var(--bg-hover);
    border-color: var(--border-glow);
}

.checkbox-item input {
    margin-top: 2px;
    width: auto;
}

.checkbox-label {
    display: block;
    color: var(--text-primary);
    font-size: 14px;
}

.checkbox-desc {
    display: block;
    color: var(--text-muted);
    font-size: 12px;
    margin-top: 4px;
}

/* 语音试听 */
.voice-preview {
    margin-bottom: 16px;
}

.voice-sample {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}

.sample-text {
    flex: 1;
    color: var(--text-muted);
    font-size: 13px;
    margin-right: 12px;
}

/* 信息框 */
.info-box {
    display: flex;
    gap: 12px;
    padding: 12px;
    background: var(--bg-hover);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
}

.info-icon {
    font-size: 18px;
}

.info-box p {
    margin: 0;
    color: var(--primary-light);
    font-size: 13px;
}

/* ========== 历史记录抽屉 ========== */
.history-drawer {
    position: fixed;
    top: 0;
    right: -400px;
    width: 400px;
    height: 100%;
    background: var(--bg-secondary);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    backdrop-filter: blur(20px) saturate(180%);
    border-left: 1px solid var(--border-light);
    z-index: 1000;
    transition: right var(--transition);
    display: flex;
    flex-direction: column;
}

.history-drawer.open {
    right: 0;
}

.drawer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid var(--border-light);
}

.drawer-header h3 {
    margin: 0;
    color: var(--text-primary);
}

.history-content {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

.empty-history,
.empty-state {
    text-align: center;
    color: var(--text-muted);
    padding: 40px 20px;
}

.history-item {
    display: flex;
    gap: 12px;
    padding: 12px;
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    cursor: pointer;
    transition: all var(--transition);
}

.history-item:hover {
    background: var(--bg-hover);
    border-color: var(--border-glow);
    transform: translateX(4px);
}

.history-thumb {
    width: 60px;
    height: 60px;
    border-radius: 6px;
    overflow: hidden;
    flex-shrink: 0;
}

.history-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-thumb {
    background: var(--bg-glass);
    display: flex;
    align-items: center;
    justify-content: center;
}

.thumb-icon {
    font-size: 24px;
}

.history-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    background: var(--bg-glass);
    border-radius: 6px;
    flex-shrink: 0;
}

.history-info {
    flex: 1;
    min-width: 0;
}

.history-prompt {
    margin: 0 0 4px 0;
    color: var(--text-primary);
    font-size: 14px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.history-time {
    color: var(--text-muted);
    font-size: 12px;
}

@media (max-width: 768px) {
    .history-drawer {
        width: 100%;
        right: -100%;
    }
}

/* ========== 教程标签页 ========== */
.tutorial-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    overflow-x: auto;
    padding-bottom: 4px;
}

.tutorial-tab {
    padding: var(--space-2) var(--space-4);
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--transition);
    min-height: 40px;
}

.tutorial-tab:hover {
    background: var(--bg-hover);
    border-color: var(--border-glow);
}

.tutorial-tab.active {
    background: var(--gradient-primary);
    color: var(--bg-dark);
    border-color: transparent;
}

.tutorial-content {
    margin-bottom: 32px;
}

/* ========== 热门爆款 ========== */
.hot-section {
    margin-bottom: 24px;
}

.hot-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.hot-item {
    display: flex;
    gap: 12px;
    padding: 16px;
    background: var(--bg-glass);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    text-decoration: none;
    position: relative;
    transition: all var(--transition);
}

.hot-item:hover {
    background: var(--bg-hover);
    border-color: var(--border-glow);
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
}

.hot-rank {
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: var(--bg-dark);
    flex-shrink: 0;
}

.hot-content {
    flex: 1;
    min-width: 0;
}

.hot-title {
    margin: 0 0 8px 0;
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.4;
}

.hot-likes {
    color: var(--text-muted);
    font-size: 13px;
}

.fav-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    background: transparent;
    border: none;
    font-size: 20px;
    cursor: pointer;
    opacity: 0.7;
    transition: all var(--transition);
}

.fav-btn:hover,
.fav-btn.active {
    opacity: 1;
    transform: scale(1.2);
}

@media (max-width: 768px) {
    .hot-grid {
        grid-template-columns: 1fr;
    }
}

/* ========== 视频列表 ========== */
.video-list-section {
    margin-bottom: 24px;
}

.video-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.video-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--bg-glass);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    text-decoration: none;
    position: relative;
    transition: all var(--transition);
}

.video-item:hover {
    background: var(--bg-hover);
    border-color: var(--border-glow);
    transform: translateX(4px);
}

.video-title {
    flex: 1;
    color: var(--text-primary);
    font-size: 14px;
}

.video-likes {
    color: var(--text-muted);
    font-size: 13px;
}

/* ========== 深度教程 ========== */
.deep-guide-section {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border-light);
}

.deep-guide-section h3 {
    margin: 0 0 20px 0;
    color: var(--text-primary);
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.guide-card {
    background: var(--bg-glass);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 20px;
    transition: all var(--transition);
}

.guide-card:hover {
    border-color: var(--border-glow);
    box-shadow: var(--shadow);
}

.guide-card.highlight {
    background: var(--bg-hover);
    border: 1px solid var(--border-glow);
}

.guide-card h4 {
    margin: 0 0 16px 0;
    color: var(--text-primary);
}

.guide-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.guide-table th,
.guide-table td {
    padding: 8px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.guide-table th {
    color: var(--text-muted);
    font-weight: normal;
}

.guide-table td {
    color: var(--text-primary);
}

.flow-steps {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.flow-step {
    padding: var(--space-2) var(--space-4);
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font-size: 13px;
    min-height: 40px;
}

.code-block {
    padding: 12px;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--primary-light);
    font-family: monospace;
    font-size: 13px;
}

.formula {
    padding: 16px;
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-weight: 600;
    text-align: center;
}

@media (max-width: 768px) {
    .guide-grid {
        grid-template-columns: 1fr;
    }
}

/* ========== 标签 ========== */
.tags-section {
    margin-bottom: 24px;
}

.tags-section h4 {
    margin: 0 0 12px 0;
    color: var(--text-primary);
}

.tags-list {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.tag {
    padding: 6px 12px;
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font-size: 13px;
    transition: all var(--transition);
}

.tag:hover {
    background: var(--bg-hover);
    border-color: var(--border-glow);
    color: var(--primary-light);
}

.source-info {
    padding: 12px;
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-size: 13px;
    text-align: center;
}

/* ========== AI 标签页 ========== */
.ai-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 28px;
    flex-wrap: wrap;
    padding: 6px;
    background: var(--bg-secondary);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    width: fit-content;
}

.ai-tab {
    padding: var(--space-2) var(--space-5);
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 40px;
}

.ai-tab:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.ai-tab.active {
    background: var(--bg-card);
    color: var(--primary);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-glow);
}

/* ========== 新闻模块 ========== */
.news-container {
    padding: 0;
}

.news-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.news-header h2 {
    font-size: 22px;
    font-weight: 600;
}

.news-tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.news-tab {
    padding: var(--space-2) var(--space-4);
    background: var(--bg-card);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    transition: all var(--transition);
    min-height: 40px;
}

.news-tab:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.news-tab.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: var(--bg-dark);
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.news-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 20px;
    background: var(--bg-card);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all var(--transition);
}

.news-item:hover {
    background: var(--bg-hover);
    border-color: var(--border-glow);
    transform: translateX(4px);
    box-shadow: var(--shadow);
}

.news-rank {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
}

.news-item:hover .news-rank {
    background: var(--bg-hover);
    color: var(--primary);
}

.news-content {
    flex: 1;
    min-width: 0;
}

.news-title {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.news-meta {
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 12px;
}

.news-hot {
    display: flex;
    align-items: center;
    gap: 4px;
    color: var(--error);
    font-size: 12px;
}

@media (max-width: 768px) {
    .news-item {
        flex-direction: column;
        align-items: flex-start;
    }
    .news-rank {
        display: none;
    }
}

/* ========== 技能中心 ========== */
.skills-container {
    padding: 0;
}

.skills-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.skills-header h2 {
    font-size: 22px;
    font-weight: 600;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
}

.skill-card {
    background: var(--bg-card);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 24px;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition);
}

.skill-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-glow);
}

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

.skill-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 16px;
}

.skill-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    font-size: 24px;
}

.skill-info {
    flex: 1;
}

.skill-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.skill-category {
    font-size: 12px;
    color: var(--text-muted);
}

.skill-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}

.skill-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.skill-tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.skill-tag {
    padding: 4px 10px;
    background: var(--bg-secondary);
    border-radius: var(--radius-full);
    font-size: 11px;
    color: var(--text-muted);
}

.skill-action {
    padding: var(--space-2) var(--space-4);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    transition: all var(--transition);
    min-height: 40px;
}

.skill-action:hover {
    background: var(--gradient-primary);
    border-color: transparent;
    color: var(--bg-dark);
    box-shadow: var(--shadow-glow);
}

@media (max-width: 768px) {
    .ai-form-card {
        padding: 24px 20px;
    }
    .tools-row {
        grid-template-columns: repeat(2, 1fr);
    }
    .weather-details {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .skills-grid {
        grid-template-columns: 1fr;
    }
}