/* ==================== 基础样式 ==================== */
:root {
    --primary-color: #4A90E2;
    --primary-hover: #357ABD;
    --secondary-color: #6C757D;
    --success-color: #28A745;
    --danger-color: #DC3545;
    --warning-color: #FFC107;
    --info-color: #17A2B8;

    --bg-primary: #FFFFFF;
    --bg-secondary: #F8F9FA;
    --bg-card: #FFFFFF;

    --text-primary: #212529;
    --text-secondary: #6C757D;
    --text-muted: #ADB5BD;

    --border-color: #E9ECEF;
    --border-radius: 12px;
    --border-radius-sm: 8px;

    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.15);

    --sidebar-width: 240px;
    --header-height: 60px;

    --transition: all 0.3s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
}

/* ==================== 布局 ==================== */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* 侧边栏 */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    position: fixed;
    height: 100vh;
    display: flex;
    flex-direction: column;
    z-index: 100;
}

.logo {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.logo h2 {
    font-size: 18px;
    color: var(--primary-color);
    font-weight: 600;
}

.account-selector {
    padding: 12px 16px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.account-selector select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--bg-primary);
    font-size: 14px;
}

.sidebar-bottom {
    margin-top: auto;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.user-info-panel {
    padding: 12px 16px;
    border-top: 1px solid var(--border-color);
}

.nav-menu {
    flex: 1;
    padding: 12px 0;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.nav-item:hover {
    background: var(--bg-secondary);
    color: var(--primary-color);
}

.nav-item.active {
    background: linear-gradient(90deg, rgba(74, 144, 226, 0.1) 0%, transparent 100%);
    color: var(--primary-color);
    border-left: 3px solid var(--primary-color);
}

.nav-item .icon {
    font-size: 18px;
    margin-right: 12px;
    width: 24px;
    text-align: center;
}

.nav-item .text {
    font-size: 14px;
}

/* 主内容区 */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 24px;
    min-height: 100vh;
}

/* 页面 */
.page {
    display: none;
}

.page.active {
    display: block;
}

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

.page-header h1 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
}

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

/* ==================== 卡片 ==================== */
.card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 24px;
}

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

.card-header h3 {
    font-size: 16px;
    font-weight: 600;
}

.card-body {
    padding: 20px;
}

/* 统计卡片 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: var(--shadow);
}

.stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.stat-value {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
}

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

.stat-card.loss .stat-value {
    color: var(--success-color);
}

.cards-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 24px;
    margin-bottom: 24px;
}

/* ==================== 表格 ==================== */
.table-responsive {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    background: var(--bg-secondary);
}

.data-table tbody tr:hover {
    background: var(--bg-secondary);
}

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

.data-table .loss {
    color: var(--success-color);
}

/* 排序表头样式 */
.data-table th.sortable {
    cursor: pointer;
    user-select: none;
    position: relative;
}

.data-table th.sortable:hover {
    background: var(--bg-tertiary, #e8e8e8);
}

.data-table th.sortable .sort-icon {
    display: inline-block;
    width: 12px;
    height: 12px;
    margin-left: 4px;
    opacity: 0.3;
}

.data-table th.sortable.asc .sort-icon::after,
.data-table th.sortable.desc .sort-icon::after {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
}

.data-table th.sortable.asc .sort-icon::after {
    border-bottom: 5px solid var(--primary-color);
    opacity: 1;
}

.data-table th.sortable.desc .sort-icon::after {
    border-top: 5px solid var(--primary-color);
    opacity: 1;
}

.data-table th.sortable.asc,
.data-table th.sortable.desc {
    color: var(--primary-color);
}

.data-table th.sortable.asc .sort-icon,
.data-table th.sortable.desc .sort-icon {
    opacity: 1;
}

/* ==================== 按钮 ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--border-radius-sm);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

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

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

.btn-success {
    background: #28a745;
    color: white;
}

.btn-success:hover {
    background: #218838;
}

.btn-danger {
    background: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    opacity: 0.9;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

.btn-icon {
    padding: 6px 8px;
    background: transparent;
    color: var(--text-secondary);
}

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

/* ==================== 表单 ==================== */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-input {
    padding: 10px 12px;
    font-size: 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--bg-primary);
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 16px;
}

/* ==================== 模态框 ==================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1100;  /* 普通模态框层级更高，确保在详情页之上 */
}

.modal-overlay.show {
    display: flex;
}

.modal {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

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

.modal-header h3 {
    font-size: 18px;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 20px;
    max-height: 60vh;
    overflow-y: auto;
}

.modal-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* ==================== Toast ==================== */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    padding: 12px 20px;
    background: var(--bg-primary);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease;
}

.toast.success {
    border-left: 4px solid var(--success-color);
}

.toast.error {
    border-left: 4px solid var(--danger-color);
}

.toast.warning {
    border-left: 4px solid var(--warning-color);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ==================== 其他组件 ==================== */
.chart-placeholder {
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.loading {
    color: var(--text-muted);
}

.signals-list {
    max-height: 300px;
    overflow-y: auto;
}

.signal-item {
    padding: 12px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 8px;
    background: var(--bg-secondary);
}

.signal-item.stop-profit {
    border-left: 4px solid var(--success-color);
}

.signal-item.add-position {
    border-left: 4px solid var(--warning-color);
}

.signal-item .signal-title {
    font-weight: 600;
    margin-bottom: 4px;
}

.signal-item .signal-desc {
    font-size: 12px;
    color: var(--text-secondary);
}

.ai-result {
    white-space: pre-wrap;
    line-height: 1.8;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius-sm);
    min-height: 200px;
}

/* AI分析Tab样式 */
.ai-tabs {
    margin-bottom: 16px;
}

.ai-tabs-header {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 12px;
    margin-bottom: 16px;
}

.ai-tab-btn {
    padding: 8px 16px;
    background: var(--bg-secondary);
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: 14px;
    color: var(--text-secondary);
    transition: all 0.2s;
    white-space: nowrap;
}

.ai-tab-btn:hover {
    background: var(--primary-color);
    color: white;
}

.ai-tab-btn.active {
    background: var(--primary-color);
    color: white;
    font-weight: 500;
}

.ai-tabs-content {
    min-height: 300px;
}

.ai-tab-panel {
    display: none;
}

.ai-tab-panel.active {
    display: block;
}

.ai-dimension-result {
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius-sm);
    margin-bottom: 12px;
}

.ai-dimension-result h4 {
    margin: 0 0 12px 0;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.ai-dimension-result .score {
    display: inline-block;
    padding: 4px 12px;
    background: var(--primary-color);
    color: white;
    border-radius: 4px;
    font-weight: 600;
    font-size: 14px;
}

.ai-dimension-result .analysis-content {
    white-space: pre-wrap;
    line-height: 1.8;
    color: var(--text-secondary);
}

.tag {
    display: inline-block;
    padding: 2px 8px;
    font-size: 12px;
    border-radius: 4px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
}

.tag.success {
    background: rgba(40, 167, 69, 0.1);
    color: var(--success-color);
}

.tag.warning {
    background: rgba(255, 193, 7, 0.1);
    color: #D39E00;
}

.tag.danger {
    background: rgba(220, 53, 69, 0.1);
    color: var(--danger-color);
}

/* ==================== 响应式 ==================== */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: var(--transition);
    }

    .sidebar.show {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
        padding-top: 70px;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    .cards-row {
        grid-template-columns: 1fr;
    }

    /* 移动端顶部栏 */
    .mobile-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        height: 56px;
        background: var(--bg-primary);
        border-bottom: 1px solid var(--border-color);
        padding: 0 16px;
        z-index: 99;
    }

    .mobile-header h1 {
        font-size: 16px;
        font-weight: 600;
        color: var(--primary-color);
    }

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

    /* 汉堡菜单按钮 */
    .menu-toggle {
        display: flex;
        flex-direction: column;
        justify-content: space-around;
        width: 28px;
        height: 24px;
        background: transparent;
        border: none;
        cursor: pointer;
        padding: 0;
    }

    .menu-toggle span {
        display: block;
        width: 100%;
        height: 3px;
        background: var(--text-primary);
        border-radius: 2px;
        transition: var(--transition);
    }

    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }

    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }

    /* 侧边栏遮罩 */
    .sidebar-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 98;
    }

    .sidebar-overlay.show {
        display: block;
    }

    /* 表格横向滚动 */
    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .data-table {
        min-width: 600px;
    }

    /* 表单调整 */
    .form-grid {
        grid-template-columns: 1fr;
    }

    /* 页面标题 */
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .page-header h1 {
        font-size: 20px;
    }

    /* 统计卡片 */
    .stat-value {
        font-size: 20px;
    }

    /* 模态框 */
    .modal {
        width: 95%;
        max-height: 85vh;
    }

    .modal-body {
        max-height: 50vh;
    }

    /* 按钮组 */
    .btn {
        padding: 8px 16px;
        font-size: 13px;
    }

    .form-actions {
        flex-direction: column;
    }

    .form-actions .btn {
        width: 100%;
    }
}

/* 桌面端隐藏移动端元素 */
@media (min-width: 769px) {
    .mobile-header {
        display: none;
    }

    .menu-toggle {
        display: none;
    }

    .sidebar-overlay {
        display: none !important;
    }
}
/* ==================== AI 分析内容样式 ==================== */
.ai-analysis-content {
    line-height: 1.8;
    color: var(--text-primary);
}

.ai-analysis-content h2 {
    color: var(--primary-color);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 8px;
    margin-top: 24px;
    margin-bottom: 16px;
}

.ai-analysis-content h3 {
    color: var(--text-primary);
    margin-top: 20px;
    margin-bottom: 12px;
}

.ai-analysis-content p {
    margin-bottom: 12px;
}

.ai-analysis-content ul, .ai-analysis-content ol {
    margin-left: 20px;
    margin-bottom: 12px;
}

.ai-analysis-content li {
    margin-bottom: 6px;
}

.ai-analysis-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
}

.ai-analysis-content th, .ai-analysis-content td {
    border: 1px solid var(--border-color);
    padding: 10px 12px;
    text-align: left;
}

.ai-analysis-content th {
    background: var(--bg-secondary);
    font-weight: 600;
}

.ai-analysis-content tr:nth-child(even) {
    background: var(--bg-secondary);
}

.ai-analysis-content code {
    background: var(--bg-secondary);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: monospace;
}

.ai-analysis-content pre {
    background: var(--bg-secondary);
    padding: 16px;
    border-radius: var(--border-radius-sm);
    overflow-x: auto;
}

.ai-analysis-content blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: 16px;
    margin: 16px 0;
    color: var(--text-secondary);
}

.ai-analysis-content hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 24px 0;
}

.ai-analysis-content strong {
    color: var(--text-primary);
}

.ai-analysis-content em {
    color: var(--text-secondary);
}

/* ==================== 回测页面样式 ==================== */
.checkbox-label {
    display: flex;
    align-items: center;
    padding: 8px 12px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.checkbox-label:hover {
    background: var(--border-color);
}

.checkbox-label input[type="checkbox"] {
    margin-right: 10px;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.checkbox-label span {
    font-weight: 500;
}

/* 策略参数区域 */
.strategy-params {
    margin-top: 12px;
    padding: 12px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius-sm);
}

.param-row {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-bottom: 8px;
}

.param-row:last-child {
    margin-bottom: 0;
}

.param-row label {
    min-width: 80px;
    font-size: 13px;
    color: var(--text-secondary);
}

.param-row input {
    width: 80px;
    padding: 6px 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 13px;
}

/* 折叠面板 */
.accordion {
    margin-top: 16px;
}

.accordion-item {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    margin-bottom: 8px;
    overflow: hidden;
}

.accordion-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--bg-secondary);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

.accordion-header:hover {
    background: var(--border-color);
}

.accordion-content {
    padding: 16px;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    max-height: 400px;
    overflow-y: auto;
}

/* 数据源选择区 */
.data-source-section {
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius-sm);
    margin-bottom: 16px;
}

.data-source-section h4 {
    margin-bottom: 12px;
    color: var(--text-primary);
}

.tushare-fetch-area {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: flex-end;
}

.tushare-fetch-area .form-group {
    margin-bottom: 0;
}

/* 加载状态 */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: var(--text-secondary);
}

.loading::before {
    content: '';
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 10px;
}

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

/* ==================== 时间范围选择器 ==================== */
.time-range-selector {
    display: flex;
    gap: 4px;
    background: var(--bg-secondary);
    padding: 4px;
    border-radius: var(--border-radius-sm);
}

.time-btn {
    padding: 6px 12px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    border-radius: 4px;
    transition: var(--transition);
}

.time-btn:hover {
    background: var(--border-color);
    color: var(--text-primary);
}

.time-btn.active {
    background: var(--primary-color);
    color: white;
}

/* 日期范围面板 */
.date-range-panel {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    padding: 20px;
    z-index: 1000;
    min-width: 300px;
}

.date-range-panel.show {
    display: block;
}

.date-range-panel h4 {
    margin-bottom: 16px;
    color: var(--text-primary);
}

.date-range-inputs {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.date-range-inputs .form-group {
    flex: 1;
}

.date-range-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* 快捷日期选择 */
.quick-date-options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.quick-date-btn {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    border-radius: 4px;
    transition: var(--transition);
}

.quick-date-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* 时间轴滑块 */
.time-slider-container {
    padding: 16px 0;
}

.time-slider {
    width: 100%;
    height: 4px;
    background: var(--border-color);
    border-radius: 2px;
    position: relative;
    cursor: pointer;
}

.time-slider-fill {
    height: 100%;
    background: var(--primary-color);
    border-radius: 2px;
    width: 100%;
}

.time-slider-handle {
    position: absolute;
    width: 16px;
    height: 16px;
    background: var(--primary-color);
    border-radius: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    cursor: grab;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* ==================== 现代化时间选择器样式 ==================== */

/* 快捷日期按钮 */
.quick-date-buttons {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.quick-btn {
    padding: 8px 16px;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    background: var(--bg-primary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    font-size: 13px;
}

.quick-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.quick-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* 日期范围选择器 */
.date-range-picker {
    display: flex;
    align-items: flex-end;
    gap: 16px;
    flex-wrap: wrap;
}

.date-picker-group {
    flex: 1;
    min-width: 150px;
}

.date-picker-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 12px;
    color: var(--text-secondary);
}

.date-separator {
    color: var(--text-muted);
    padding-bottom: 10px;
    font-size: 14px;
}

/* 现代化日期输入框 */
input[type="date"] {
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 14px;
    width: 100%;
    transition: var(--transition);
}

input[type="date"]:hover {
    border-color: var(--primary-color);
}

input[type="date"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

/* 时间范围选择器（旧样式升级） */
.time-range-selector {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.time-btn {
    padding: 6px 14px;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    background: var(--bg-primary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    font-size: 12px;
}

.time-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.time-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* ============================================
   Flatpickr 日期选择器自定义样式
   ============================================ */
.flatpickr-calendar {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    border: none;
    padding: 12px;
    margin-top: 8px;
}

.flatpickr-calendar.arrowTop::before,
.flatpickr-calendar.arrowTop::after {
    display: none;
}

.flatpickr-months {
    margin-bottom: 8px;
}

.flatpickr-months .flatpickr-month {
    background: transparent;
    border-radius: 8px;
}

.flatpickr-current-month .flatpickr-monthDropdown-months {
    font-weight: 600;
    appearance: none;
    -webkit-appearance: none;
    padding: 4px 8px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.flatpickr-current-month .flatpickr-monthDropdown-months:hover {
    border-color: var(--primary-color);
}

.flatpickr-day {
    border-radius: 8px;
    margin: 3px;
    font-weight: 500;
    transition: all 0.15s ease;
}

.flatpickr-day:hover {
    background: rgba(74, 144, 226, 0.1);
    border-color: transparent;
}

.flatpickr-day.selected {
    background: var(--primary-color);
    border-color: var(--primary-color);
    font-weight: 600;
}

.flatpickr-day.selected:hover {
    background: var(--primary-color);
}

.flatpickr-day.today {
    border-color: var(--primary-color);
    color: var(--primary-color);
    font-weight: 600;
}

.flatpickr-day.today:hover {
    background: rgba(74, 144, 226, 0.1);
}

.flatpickr-weekday {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 12px;
}

.flatpickr-month-navigation-prev,
.flatpickr-month-navigation-next {
    border-radius: 6px;
    transition: all 0.15s ease;
}

.flatpickr-month-navigation-prev:hover,
.flatpickr-month-navigation-next:hover {
    background: rgba(74, 144, 226, 0.1);
}

/* ============================================
   字段加载状态样式
   ============================================ */
.loading-text {
    color: var(--text-muted);
    font-size: 13px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.mini-spinner {
    width: 12px;
    height: 12px;
    border: 2px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    display: inline-block;
}

.metric-error {
    color: var(--danger-color);
    font-size: 12px;
    cursor: help;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.metric-error::before {
    content: '⚠';
    font-size: 11px;
}

.has-error .stat-label::after {
    content: ' ⚠';
    color: var(--warning-color);
}

.field-loading {
    animation: pulse 1.5s ease-in-out infinite;
}

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

/* 持仓详情模态框 - 层级低于普通模态框 */
#position-detail-modal {
    z-index: 1000;
}