/* ========== home.css ==========
 * 首页 Nebula 设计语言 · 紫靛渐变 · 玻璃拟态 · 微光发光
 * 历史 7 层叠加(L1 基础 + L2 响应式 + L3 动画 + L4 Polish + L5 预览弹窗 + L6 新版 + L7 收敛层)
 * 已于 2026-07-06 彻底合并:拔除 22 处 !important,逐选择器收敛为单条,token 化落地。
 */

/* ========== 首页容器 ========== */
.home-content {
    padding: 0;
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    gap: 22px;
}

@media (max-width: 640px) {
    .home-content {
        padding: var(--space-3);
        gap: var(--space-4);
    }
}

/* ========== 1. 欢迎区 ========== */
.home-welcome {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-6) var(--space-5);
    background:
        linear-gradient(135deg, var(--bg-hover), rgba(6, 182, 212, 0.10) 46%, var(--bg-glass)),
        var(--bg-primary);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
    box-shadow: var(--shadow-card), 0 0 0 1px var(--border) inset;
}

.home-welcome::before {
    content: '';
    position: absolute;
    top: -60%;
    right: -10%;
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, var(--bg-hover) 0%, transparent 70%);
    pointer-events: none;
}

.home-welcome::after {
    content: '';
    position: absolute;
    width: 260px;
    height: 260px;
    right: -70px;
    top: -90px;
    background: radial-gradient(circle, var(--bg-hover), transparent 67%);
    pointer-events: none;
}

.welcome-text {
    position: relative;
    z-index: 1;
}

.welcome-greeting {
    font-size: var(--text-xl);
    font-weight: 800;
    letter-spacing: -0.04em;
    margin-bottom: 6px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-light) 48%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}

.welcome-date-info {
    font-size: 16px;
    color: var(--text-secondary);
    opacity: 0.85;
    margin-bottom: 4px;
}

.welcome-user-info {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.welcome-actions {
    display: flex;
    gap: 12px;
    position: relative;
    z-index: 1;
}

.welcome-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    background: var(--bg-glass);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
    backdrop-filter: blur(8px);
}

.welcome-action-btn:hover {
    background: var(--bg-hover);
    border-color: var(--border-glow);
    color: var(--primary-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow);
}

.welcome-action-btn .btn-icon-text {
    font-size: 16px;
    margin-right: 6px;
}

@media (max-width: 640px) {
    .home-welcome {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
        padding: var(--space-4);
    }
    .welcome-greeting { font-size: var(--text-lg); }
    .welcome-actions {
        width: 100%;
        flex-wrap: wrap;
    }
    .welcome-action-btn {
        flex: 1;
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .home-welcome { padding: 22px; }
}

/* ========== 2. 快捷操作卡片 ========== */
.quick-actions-section {
    margin-bottom: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 18px;
    box-shadow: var(--shadow-card);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}

@media (max-width: 768px) {
    .quick-actions-section { padding: 14px; }
}
@media (max-width: 640px) {
    .quick-actions-section { margin-bottom: var(--space-4); }
}

.quick-actions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 14px;
}

@media (max-width: 1024px) {
    .quick-actions-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .quick-actions-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
}

.quick-action-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: var(--space-4);
    background: linear-gradient(145deg, var(--bg-glass), var(--bg-card));
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-card);
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition), background var(--transition);
    animation: homeFadeUp 0.45s ease-out backwards;
}

.quick-action-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-md);
    opacity: 0;
    transition: opacity var(--transition);
    pointer-events: none;
}

.quick-action-card:nth-child(1)::before {
    background: linear-gradient(135deg, var(--bg-hover), rgba(99, 102, 241, 0.04));
}
.quick-action-card:nth-child(2)::before {
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.08), rgba(244, 114, 182, 0.04));
}
.quick-action-card:nth-child(3)::before {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.08), rgba(34, 211, 238, 0.04));
}
.quick-action-card:nth-child(4)::before {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.08), rgba(52, 211, 153, 0.04));
}

.quick-action-card:hover {
    transform: translateY(-3px);
    background: linear-gradient(145deg, var(--bg-hover), var(--bg-glass));
    border-color: var(--border-glow);
    box-shadow: var(--shadow-card), var(--shadow-glow);
}

.quick-action-card:hover::before { opacity: 1; }
.quick-action-card:active { transform: translateY(-3px); }
.quick-action-card:hover .qa-icon-wrap { transform: scale(1.1); }

.quick-action-card:nth-child(1) { animation-delay: 0.05s; }
.quick-action-card:nth-child(2) { animation-delay: 0.1s; }
.quick-action-card:nth-child(3) { animation-delay: 0.15s; }
.quick-action-card:nth-child(4) { animation-delay: 0.2s; }

@media (max-width: 640px) {
    .quick-action-card { padding: var(--space-3); }
}

.qa-icon-wrap {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    font-size: 28px;
    transition: all var(--transition);
    box-shadow: inset 0 0 0 1px var(--border-light), var(--shadow);
}

.quick-action-card:nth-child(1) .qa-icon-wrap { background: var(--bg-hover); }
.quick-action-card:nth-child(2) .qa-icon-wrap { background: rgba(236, 72, 153, 0.15); }
.quick-action-card:nth-child(3) .qa-icon-wrap { background: rgba(6, 182, 212, 0.15); }
.quick-action-card:nth-child(4) .qa-icon-wrap { background: rgba(16, 185, 129, 0.15); }

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

.qa-hint {
    font-size: 12px;
    color: var(--text-secondary);
}

/* ========== 3. 数据概览卡片 ========== */
.data-overview-section {
    margin-bottom: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 18px;
    box-shadow: var(--shadow-card);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}

@media (max-width: 768px) {
    .data-overview-section { padding: 14px; }
}
@media (max-width: 640px) {
    .data-overview-section { margin-bottom: var(--space-4); }
}

.data-cards-row {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 14px;
}

@media (max-width: 1024px) {
    .data-cards-row { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .data-cards-row { grid-template-columns: 1fr; }
}

.data-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: var(--space-4);
    background: linear-gradient(145deg, var(--bg-glass), var(--bg-card));
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition), background var(--transition);
    cursor: default;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-card);
    animation: homeFadeUp 0.45s ease-out backwards;
}

.data-card:hover {
    transform: translateY(-3px);
    background: linear-gradient(145deg, var(--bg-hover), var(--bg-glass));
    border-color: var(--border-glow);
    box-shadow: var(--shadow-card), var(--shadow-glow);
}

.data-card:hover .dc-value {
    transition: transform var(--transition-fast);
    transform: scale(1.05);
}

.data-card:nth-child(1) { animation-delay: 0.15s; }
.data-card:nth-child(2) { animation-delay: 0.2s; }
.data-card:nth-child(3) { animation-delay: 0.25s; }

@media (max-width: 640px) {
    .data-card { padding: var(--space-3); }
}

.dc-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    font-size: 24px;
    flex-shrink: 0;
    box-shadow: inset 0 0 0 1px var(--border-light), var(--shadow);
}

.dc-icon.purple { background: var(--bg-hover); }
.dc-icon.amber { background: rgba(245, 158, 11, 0.15); }
.dc-icon.blue { background: rgba(6, 182, 212, 0.15); }
.dc-icon.green { background: rgba(16, 185, 129, 0.15); }

.dc-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.dc-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.dc-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 2px;
}

.dc-sub {
    font-size: var(--text-xs);
    color: var(--text-muted);
    margin-top: 1px;
}

/* ========== 4. 最近动态时间线 ========== */
.activity-section {
    margin-bottom: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 18px;
    box-shadow: var(--shadow-card);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}

@media (max-width: 768px) {
    .activity-section { padding: 14px; }
}
@media (max-width: 640px) {
    .activity-section { margin-bottom: var(--space-4); }
}

.activity-timeline {
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 20px;
    min-height: 100px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-card);
}

.activity-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 12px 0;
    position: relative;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(145deg, var(--bg-glass), var(--bg-card));
    border-radius: var(--radius-lg);
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition), background var(--transition);
    animation: homeFadeUp 0.45s ease-out backwards;
}

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

.activity-item:hover {
    transform: translateY(-3px);
    background: linear-gradient(145deg, var(--bg-hover), var(--bg-glass));
    border-color: var(--border-glow);
    box-shadow: var(--shadow-card), var(--shadow-glow);
}

.activity-item:nth-child(1) { animation-delay: 0.2s; }
.activity-item:nth-child(2) { animation-delay: 0.25s; }
.activity-item:nth-child(3) { animation-delay: 0.3s; }

.activity-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-top: 5px;
    flex-shrink: 0;
}

.activity-dot.purple { background: var(--primary-light); box-shadow: 0 0 8px var(--border-glow); }
.activity-dot.pink { background: #f472b6; box-shadow: 0 0 8px rgba(244, 114, 182, 0.5); }
.activity-dot.blue { background: var(--accent); box-shadow: 0 0 8px rgba(6, 182, 212, 0.5); }
.activity-dot.green { background: var(--success); box-shadow: 0 0 8px rgba(16, 185, 129, 0.5); }
.activity-dot.amber { background: var(--warning); box-shadow: 0 0 8px rgba(245, 158, 11, 0.5); }

.activity-body { flex: 1; min-width: 0; }

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

.activity-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 2px;
}

.activity-time {
    font-size: 12px;
    color: var(--text-muted);
    white-space: nowrap;
    flex-shrink: 0;
    margin-top: 2px;
}

.activity-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 30px;
    color: var(--text-muted);
    font-size: 14px;
    text-align: center;
}

.activity-empty-icon {
    font-size: 36px;
    margin-bottom: 10px;
    opacity: 0.5;
}

/* ========== 5. 快捷入口编辑区 ========== */
.quick-links-section {
    margin-bottom: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 18px;
    box-shadow: var(--shadow-card);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}

@media (max-width: 768px) {
    .quick-links-section { padding: 14px; }
}
@media (max-width: 640px) {
    .quick-links-section { margin-bottom: var(--space-4); }
}

.quick-links-container {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 18px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-card);
}

.quick-links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
    margin-bottom: 16px;
}

@media (max-width: 1024px) {
    .quick-links-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .quick-links-grid { grid-template-columns: 1fr; }
}

.quick-link-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: linear-gradient(145deg, var(--bg-glass), var(--bg-card));
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    position: relative;
    text-decoration: none;
    color: var(--text-primary);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-card);
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition), background var(--transition);
    animation: homeFadeUp 0.45s ease-out backwards;
}

.quick-link-item:hover {
    transform: translateY(-2px);
    background: linear-gradient(145deg, var(--bg-hover), var(--bg-glass));
    border-color: var(--border-glow);
    box-shadow: var(--shadow-card), var(--shadow-glow);
}

.ql-icon {
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-hover);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-sm);
    font-size: 22px;
    flex-shrink: 0;
    box-shadow: inset 0 0 0 1px var(--border-light), var(--shadow);
}

.ql-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.ql-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ql-url {
    font-size: 12px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ql-delete {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    cursor: pointer;
    font-size: 12px;
    opacity: 0;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.quick-link-item:hover .ql-delete { opacity: 1; }

.ql-delete:hover {
    background: rgba(244, 63, 94, 0.2);
    color: var(--error);
}

.ql-empty {
    grid-column: 1 / -1;
    padding: 30px;
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
}

.ql-add-row {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-bottom: 12px;
}

@media (max-width: 640px) {
    .ql-add-row { flex-wrap: wrap; }
}

.ql-input {
    flex: 1;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    transition: all var(--transition);
    outline: none;
}

.ql-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--bg-hover);
}

.ql-input::placeholder { color: var(--text-muted); }

.ql-input.name-input { max-width: 180px; }

@media (max-width: 640px) {
    .ql-input.name-input { max-width: 100%; flex: 1 1 100%; }
}

.ql-add-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
    box-shadow: var(--shadow-glow);
}

.ql-add-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow), 0 4px 16px var(--border-glow);
}

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

@media (max-width: 640px) {
    .ql-add-btn { min-height: 44px; min-width: 44px; }
}

.ql-hint-row {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 8px;
    display: flex;
    align-items: center;
    gap: 4px;
}

/* ========== 通用标题（首页各 section 共用） ========== */
.section-title {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0 0 var(--space-4);
    font-size: var(--text-lg);
    font-weight: 750;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

/* 父级限定的 section-title 用更高 specificity 保持 15px（紧凑标题） */
.quick-actions-section .section-title,
.data-overview-section .section-title,
.activity-section .section-title,
.quick-links-section .section-title {
    font-size: 15px;
}

/* ========== 跨模块 header 美化（首页统一应用到各模块 header） ========== */
.module-header,
.chat-header,
.multimodal-header,
.image-header,
.tts-header,
.video-header,
.files-header,
.weather-header,
.tools-header {
    background: linear-gradient(135deg, var(--bg-glass), var(--bg-card));
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 18px 20px;
    margin-bottom: 18px;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: var(--shadow-card);
}

.module-header h2,
.chat-header h2,
.multimodal-header h2,
.image-header h2,
.tts-header h2,
.video-header h2,
.files-header h2,
.weather-header h2,
.tools-header h2 {
    letter-spacing: -0.03em;
}

@media (max-width: 768px) {
    .content { padding: 16px; }
}

/* ═══════════ 文件预览弹窗 ═══════════ */
.preview-modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1050;
    animation: fadeIn 0.2s ease;
}

.preview-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(6px);
    z-index: 0;
}

.preview-content {
    position: relative;
    z-index: 1;
    width: min(90vw, 900px);
    max-height: 85vh;
    overflow-y: auto;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 20px;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.preview-loading {
    color: var(--text-muted);
    text-align: center;
    padding: 40px;
}

.preview-error {
    color: var(--error);
    text-align: center;
    padding: 40px;
}

.preview-text {
    margin: 0;
    padding: 16px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-primary);
    white-space: pre-wrap;
    word-break: break-all;
    max-height: 70vh;
    overflow: auto;
}

.preview-text code {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 12px;
    color: var(--text-primary);
}

.preview-img {
    max-width: 100%;
    max-height: 75vh;
    border-radius: var(--radius-sm);
    display: block;
    margin: 0 auto;
}

.preview-video {
    max-width: 100%;
    max-height: 75vh;
    border-radius: var(--radius-sm);
}

.preview-audio {
    width: 100%;
    margin: 16px 0;
}

.preview-pdf {
    width: 100%;
    height: 70vh;
    border: none;
    border-radius: var(--radius-sm);
}

.preview-info {
    color: var(--text-secondary);
    padding: 20px;
    text-align: center;
}

.preview-info p { margin: 6px 0; }

/* ========== 新版首页容器（兼容） ========== */
.home-container {
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

/* ========== 动画 ========== */
@keyframes homeFadeUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}