/* ============================================
   地产项目AI运营驾驶舱 - 样式表
   商务简约风格 · PC端优化
   ============================================ */

:root {
    --primary: #1a3a5c;
    --primary-light: #2c5282;
    --accent: #3182ce;
    --accent-light: #4299e1;
    --success: #2f855a;
    --success-light: #48bb78;
    --warning: #d69e2e;
    --warning-light: #ecc94b;
    --danger: #c53030;
    --danger-light: #e53e3e;
    --bg: #f0f2f5;
    --card-bg: #ffffff;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-tertiary: #718096;
    --border: #e2e8f0;
    --border-light: #edf2f7;
    --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.05), 0 2px 4px rgba(0,0,0,0.04);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.06), 0 4px 6px rgba(0,0,0,0.04);
    --radius: 8px;
    --radius-sm: 6px;
    --sidebar-width: 220px;
}

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

body {
    font-family: -apple-system, "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.5;
    overflow: hidden;
}

/* ============ 顶部导航 ============ */
.top-bar {
    height: 56px;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    padding: 0 24px;
    justify-content: space-between;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    z-index: 100;
    position: relative;
}

.top-bar .logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.top-bar .logo-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.top-bar .logo-text {
    font-size: 17px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.top-bar .logo-sub {
    font-size: 12px;
    opacity: 0.7;
    margin-left: 8px;
    padding-left: 8px;
    border-left: 1px solid rgba(255,255,255,0.2);
}

.top-bar .status-area {
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: 13px;
}

.sync-status {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background: rgba(255,255,255,0.1);
    border-radius: 20px;
}

.sync-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success-light);
    animation: pulse 2s infinite;
}

.sync-dot.error {
    background: var(--danger-light);
    animation: none;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.last-update {
    opacity: 0.8;
    font-size: 12px;
}

/* ============ 布局 ============ */
.layout {
    display: flex;
    height: calc(100vh - 56px);
}

/* ============ 侧边栏 ============ */
.sidebar {
    width: var(--sidebar-width);
    background: var(--primary);
    color: #cbd5e0;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    transition: width 0.3s;
}

.sidebar-nav {
    padding: 12px 0;
    flex: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 14px;
    border-left: 3px solid transparent;
    color: #a0aec0;
}

.nav-item:hover {
    background: rgba(255,255,255,0.08);
    color: #fff;
}

.nav-item.active {
    background: rgba(255,255,255,0.12);
    color: #fff;
    border-left-color: var(--accent-light);
    font-weight: 500;
}

.nav-item .nav-icon {
    font-size: 18px;
    width: 24px;
    text-align: center;
}

.nav-section-title {
    padding: 16px 20px 6px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #718096;
    font-weight: 600;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 12px;
    color: #718096;
}

/* ============ 主内容区 ============ */
.main-content {
    flex: 1;
    overflow-y: auto;
    padding: 20px 24px;
    background: var(--bg);
}

.module-page {
    display: none;
    animation: fadeIn 0.3s ease;
}

.module-page.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.page-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.page-subtitle {
    font-size: 13px;
    color: var(--text-tertiary);
    margin-bottom: 20px;
}

/* ============ KPI卡片 ============ */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.kpi-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 18px 20px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
    transition: transform 0.2s, box-shadow 0.2s;
    position: relative;
    overflow: hidden;
}

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

.kpi-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
}

.kpi-card.accent::before { background: var(--accent); }
.kpi-card.success::before { background: var(--success-light); }
.kpi-card.warning::before { background: var(--warning-light); }
.kpi-card.danger::before { background: var(--danger-light); }

.kpi-label {
    font-size: 12px;
    color: var(--text-tertiary);
    margin-bottom: 6px;
    font-weight: 500;
}

.kpi-value {
    font-size: 26px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.kpi-value .unit {
    font-size: 13px;
    font-weight: 400;
    color: var(--text-tertiary);
    margin-left: 4px;
}

.kpi-trend {
    font-size: 12px;
    margin-top: 6px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.kpi-trend.up { color: var(--success); }
.kpi-trend.down { color: var(--danger); }
.kpi-trend.neutral { color: var(--text-tertiary); }

.kpi-card.danger .kpi-value {
    color: var(--danger);
}

.kpi-card.warning .kpi-value {
    color: var(--warning);
}

/* ============ 图表区 ============ */
.chart-grid {
    display: grid;
    gap: 16px;
    margin-bottom: 24px;
}

.chart-grid.cols-2 {
    grid-template-columns: 1fr 1fr;
}

.chart-grid.cols-1 {
    grid-template-columns: 1fr;
}

.chart-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.chart-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.chart-body {
    width: 100%;
    height: 300px;
}

.chart-body.tall {
    height: 360px;
}

/* ============ 明细表格 ============ */
.table-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
    overflow: hidden;
}

.table-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.table-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.table-controls {
    display: flex;
    gap: 8px;
    align-items: center;
}

.filter-select {
    padding: 6px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    background: #fff;
    color: var(--text-primary);
    cursor: pointer;
    outline: none;
}

.filter-select:focus {
    border-color: var(--accent);
}

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

.data-table th {
    background: #f7fafc;
    padding: 10px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border);
    white-space: nowrap;
}

.data-table td {
    padding: 10px 16px;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-primary);
}

.data-table tr:hover {
    background: #f7fafc;
}

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

.data-table .total-row {
    background: #f0f4f8;
    font-weight: 600;
}

.data-table .total-row td {
    border-top: 2px solid var(--border);
}

.data-table .danger-row {
    background: #fff5f5;
}

.data-table .danger-row td {
    color: var(--danger);
}

.data-table .negative {
    color: var(--danger);
    font-weight: 600;
}

.data-table .positive {
    color: var(--success);
    font-weight: 500;
}

.data-table .percent {
    color: var(--accent);
}

/* ============ AI洞察面板 ============ */
.ai-insight {
    background: linear-gradient(135deg, #ebf8ff, #f0fff4);
    border: 1px solid #bee3f8;
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 24px;
}

.ai-insight-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    font-size: 15px;
    font-weight: 600;
    color: var(--primary);
}

.ai-insight-list {
    list-style: none;
}

.ai-insight-item {
    padding: 8px 0;
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.ai-insight-item .badge {
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    white-space: nowrap;
    flex-shrink: 0;
}

.badge-danger { background: #fed7d7; color: var(--danger); }
.badge-warning { background: #feebc8; color: var(--warning); }
.badge-info { background: #bee3f8; color: var(--accent); }
.badge-success { background: #c6f6d5; color: var(--success); }

/* ============ AI查询面板 ============ */
.ai-query-panel {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.ai-query-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
}

.ai-query-header h3 {
    font-size: 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.ai-query-header p {
    font-size: 12px;
    opacity: 0.8;
    margin-top: 4px;
}

.ai-query-body {
    flex: 1;
    overflow-y: auto;
    padding: 16px 20px;
    min-height: 300px;
}

.query-message {
    margin-bottom: 16px;
}

.query-message.user .msg-bubble {
    background: var(--accent);
    color: #fff;
    margin-left: 40px;
    border-radius: 12px 12px 4px 12px;
}

.query-message.bot .msg-bubble {
    background: #f7fafc;
    color: var(--text-primary);
    margin-right: 40px;
    border-radius: 12px 12px 12px 4px;
    border: 1px solid var(--border);
}

.msg-bubble {
    padding: 10px 14px;
    font-size: 13px;
    line-height: 1.6;
}

.query-message .msg-label {
    font-size: 11px;
    color: var(--text-tertiary);
    margin-bottom: 4px;
}

.query-message.user .msg-label {
    text-align: right;
    margin-left: 40px;
}

.query-message.bot .msg-label {
    margin-right: 40px;
}

.ai-query-input {
    padding: 12px 16px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 8px;
    background: #f7fafc;
}

.ai-query-input input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 13px;
    outline: none;
    transition: border-color 0.2s;
}

.ai-query-input input:focus {
    border-color: var(--accent);
}

.ai-query-input button {
    padding: 10px 20px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
    white-space: nowrap;
}

.ai-query-input button:hover {
    background: var(--primary-light);
}

.ai-query-suggestions {
    padding: 0 20px 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.suggestion-chip {
    padding: 4px 12px;
    background: #edf2f7;
    border: 1px solid var(--border);
    border-radius: 16px;
    font-size: 12px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}

.suggestion-chip:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

/* ============ 进度条 ============ */
.progress-bar-container {
    width: 100%;
    height: 8px;
    background: #edf2f7;
    border-radius: 4px;
    overflow: hidden;
    margin-top: 4px;
}

.progress-bar-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s ease;
}

.progress-bar-fill.normal { background: var(--accent); }
.progress-bar-fill.warning { background: var(--warning-light); }
.progress-bar-fill.danger { background: var(--danger-light); }

/* ============ 总览页 ============ */
.overview-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

.overview-chart {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
}

/* ============ 工具类 ============ */
.text-right { text-align: right; }
.text-center { text-align: center; }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-muted { color: var(--text-tertiary); }
.font-bold { font-weight: 600; }
.mt-16 { margin-top: 16px; }
.mb-16 { margin-bottom: 16px; }

/* ============ 滚动条 ============ */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e0;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a0aec0;
}

/* ============ 加载动画 ============ */
.loading-overlay {
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255,255,255,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    font-size: 16px;
    color: var(--primary);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ============ 提示框 ============ */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    padding: 12px 20px;
    background: var(--primary);
    color: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    font-size: 13px;
    z-index: 1000;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast.success { background: var(--success); }
.toast.danger { background: var(--danger); }