/* ========== 全局样式 ========== */
:root {
    --primary-color: #db0011;
    --primary-dark: #a8000d;
    --secondary-color: #333;
    --background-color: #f5f5f5;
    --card-background: #ffffff;
    --border-color: #e0e0e0;
    --text-color: #333;
    --text-muted: #666;
    --success-color: #4caf50;
    --danger-color: #f44336;
    --warning-color: #ff9800;
    --navbar-height: 60px;
    --footer-height: 40px;
}

* {
    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: 1.5;
    color: var(--text-color);
    background-color: var(--background-color);
}

/* ========== 导航栏 ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--navbar-height);
    background-color: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.navbar-brand a {
    color: white;
    text-decoration: none;
    font-size: 20px;
    font-weight: bold;
}

.navbar-menu {
    display: flex;
    gap: 5px;
}

.nav-link {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 4px;
    transition: background-color 0.2s, color 0.2s;
}

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
}

.nav-link.active {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    font-weight: 500;
}

.navbar-status {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.8);
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--success-color);
}

.status-indicator.error {
    background-color: var(--danger-color);
}

/* ========== 主内容区域 ========== */
.main-content {
    margin-top: var(--navbar-height);
    min-height: calc(100vh - var(--navbar-height) - var(--footer-height));
    padding: 20px;
}

#app-container {
    max-width: 1400px;
    margin: 0 auto;
}

/* ========== 页脚 ========== */
.footer {
    height: var(--footer-height);
    background-color: var(--secondary-color);
    color: rgba(255, 255, 255, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
}

.footer-content {
    display: flex;
    gap: 20px;
    font-size: 12px;
}

/* ========== 加载状态 ========== */
.loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    color: var(--text-muted);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 10px;
}

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

/* ========== 卡片 ========== */
.card {
    background-color: var(--card-background);
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    padding: 20px;
    margin-bottom: 20px;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-color);
}

/* ========== 筛选器 ========== */
.filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
    padding: 15px;
    background-color: var(--card-background);
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.filter-label {
    font-size: 13px;
    color: var(--text-muted);
    white-space: nowrap;
}

.filter-select, .filter-input {
    padding: 6px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 13px;
    background-color: white;
    min-width: 120px;
}

.filter-select:focus, .filter-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.filter-btn {
    padding: 6px 16px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
    transition: background-color 0.2s;
}

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

.filter-btn.secondary {
    background-color: #6c757d;
}

.filter-btn.secondary:hover {
    background-color: #5a6268;
}

/* ========== 表格 ========== */
.table-container {
    overflow-x: auto;
    background-color: var(--card-background);
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

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

.data-table th,
.data-table td {
    padding: 12px 10px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background-color: #f8f9fa;
    font-weight: 600;
    color: var(--text-color);
    white-space: nowrap;
    cursor: pointer;
    user-select: none;
}

.data-table th:hover {
    background-color: #e9ecef;
}

.data-table th.sortable::after {
    content: ' ↕';
    color: #ccc;
}

.data-table th.sort-asc::after {
    content: ' ↑';
    color: var(--primary-color);
}

.data-table th.sort-desc::after {
    content: ' ↓';
    color: var(--primary-color);
}

.data-table tbody tr:hover {
    background-color: #f8f9fa;
}

.data-table td.number {
    text-align: right;
    font-family: "Roboto Mono", monospace;
}

/* ========== 收益率样式 ========== */
.positive {
    color: #c41e3a;
}

.negative {
    color: #228b22;
}

/* ========== 评级星星 ========== */
.rating-stars {
    color: #ffc107;
    letter-spacing: 1px;
}

/* ========== 风险等级标签 ========== */
.risk-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

.risk-1 { background-color: #e8f5e9; color: #2e7d32; }
.risk-2 { background-color: #e3f2fd; color: #1565c0; }
.risk-3 { background-color: #fff3e0; color: #ef6c00; }
.risk-4 { background-color: #fce4ec; color: #c2185b; }
.risk-5 { background-color: #ffebee; color: #c62828; }

/* ========== 分页 ========== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 5px;
    margin-top: 20px;
    padding: 15px;
}

.pagination-btn {
    padding: 6px 12px;
    border: 1px solid var(--border-color);
    background-color: white;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.2s;
}

.pagination-btn:hover:not(:disabled) {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.pagination-info {
    margin: 0 15px;
    color: var(--text-muted);
    font-size: 13px;
}

/* ========== 统计卡片 ========== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.stat-card {
    background-color: var(--card-background);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.stat-card .stat-value {
    font-size: 28px;
    font-weight: bold;
    color: var(--primary-color);
}

.stat-card .stat-label {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 5px;
}

/* ========== 按钮 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

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

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

.btn-secondary {
    background-color: #6c757d;
    color: white;
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color);
}

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

/* ========== 自选收藏按钮 ========== */
.fav-btn {
    width: 28px;
    height: 28px;
    padding: 0;
    border: none;
    background: transparent;
    font-size: 18px;
    cursor: pointer;
    color: #ccc;
    transition: all 0.2s;
    border-radius: 50%;
}

.fav-btn:hover {
    color: #ffc107;
    background-color: rgba(255, 193, 7, 0.1);
}

.fav-btn.active {
    color: #ffc107;
}

/* 自选筛选复选框 */
.filter-checkbox {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-size: 13px;
    white-space: nowrap;
}

.filter-checkbox input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

/* ========== 图表按钮 ========== */
.chart-btn {
    width: 28px;
    height: 28px;
    padding: 0;
    border: none;
    background: transparent;
    font-size: 16px;
    cursor: pointer;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.chart-btn:hover {
    background-color: #e3f2fd;
}

/* ========== 图表模态框 ========== */
.chart-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.chart-modal {
    background: white;
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    animation: modalFadeIn 0.2s ease-out;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

.chart-modal-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
}

.chart-modal-close {
    width: 28px;
    height: 28px;
    border: none;
    background: transparent;
    font-size: 20px;
    cursor: pointer;
    color: #666;
    border-radius: 4px;
}

.chart-modal-close:hover {
    background: #f5f5f5;
    color: #333;
}

.chart-modal-body {
    padding: 24px;
}

.return-chart {
    display: flex;
    justify-content: space-around;
    align-items: flex-end;
    height: 220px;
}

.return-bar-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.return-value {
    font-size: 13px;
    font-weight: 600;
}

.return-value.positive {
    color: #c41e3a;
}

.return-value.negative {
    color: #228b22;
}

.return-bar-container {
    width: 40px;
    height: 150px;
    display: flex;
    align-items: flex-end;
    justify-content: center;
}

.return-bar {
    width: 30px;
    min-height: 3px;
    border-radius: 4px 4px 0 0;
    transition: height 0.3s ease;
}

.return-bar.positive {
    background: linear-gradient(180deg, #ff6b6b, #c41e3a);
}

.return-bar.negative {
    background: linear-gradient(180deg, #69db7c, #228b22);
}

.return-label {
    font-size: 12px;
    color: #666;
    font-weight: 500;
}

/* ========== 响应式 ========== */

/* 平板设备 */
@media (max-width: 1024px) {
    .data-table th,
    .data-table td {
        padding: 10px 6px;
        font-size: 12px;
    }

    .filter-select, .filter-input {
        min-width: 100px;
    }
}

/* 移动设备 */
@media (max-width: 768px) {
    .navbar {
        flex-wrap: wrap;
        height: auto;
        padding: 10px;
    }

    .navbar-brand a {
        font-size: 16px;
    }

    .navbar-menu {
        order: 3;
        width: 100%;
        justify-content: center;
        margin-top: 10px;
        flex-wrap: wrap;
    }

    .nav-link {
        padding: 6px 10px;
        font-size: 13px;
    }

    .navbar-status {
        display: none;
    }

    .main-content {
        margin-top: 100px;
        padding: 10px;
    }

    /* 页面标题区域 */
    .page-header {
        flex-direction: column;
        gap: 10px;
    }

    .page-header > div {
        width: 100%;
    }

    .page-header > div:last-child {
        justify-content: flex-start !important;
    }

    .page-title {
        font-size: 18px;
    }

    .page-subtitle {
        font-size: 12px;
    }

    /* 筛选器 */
    .filters {
        flex-direction: column;
        padding: 10px;
    }

    .filter-group {
        width: 100%;
    }

    .filter-select, .filter-input {
        flex: 1;
        min-width: auto;
    }

    .filter-btn {
        padding: 8px 12px;
        flex: 1;
    }

    /* 表格 */
    .data-table {
        font-size: 11px;
    }

    .data-table th,
    .data-table td {
        padding: 8px 4px;
    }

    /* 隐藏部分列 */
    .data-table th:nth-child(n+7):not(:last-child),
    .data-table td:nth-child(n+7):not(:last-child) {
        display: none;
    }

    /* 收藏和图表按钮缩小 */
    .fav-btn, .chart-btn {
        width: 24px;
        height: 24px;
        font-size: 14px;
    }

    /* 分页 */
    .pagination {
        padding: 10px;
    }

    .pagination-btn {
        padding: 8px 10px;
    }

    /* 统计卡片 */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .stat-card {
        padding: 12px;
    }

    .stat-card .stat-value {
        font-size: 20px;
    }

    /* 图表模态框 */
    .chart-modal {
        width: 95%;
        margin: 10px;
    }

    .chart-modal-header {
        padding: 12px 16px;
    }

    .chart-modal-header h3 {
        font-size: 14px;
    }

    .chart-modal-body {
        padding: 16px;
    }

    .return-chart {
        height: 180px;
    }

    .return-bar-container {
        width: 30px;
        height: 120px;
    }

    .return-bar {
        width: 22px;
    }

    .return-value {
        font-size: 11px;
    }

    .return-label {
        font-size: 10px;
    }
}

/* 小屏手机 */
@media (max-width: 480px) {
    .main-content {
        padding: 8px;
    }

    .navbar-menu {
        gap: 2px;
    }

    .nav-link {
        padding: 5px 8px;
        font-size: 12px;
    }

    .page-title {
        font-size: 16px;
    }

    /* 表格更紧凑 */
    .data-table {
        font-size: 10px;
    }

    .data-table th,
    .data-table td {
        padding: 6px 3px;
    }

    /* 隐藏更多列，只保留核心信息 */
    .data-table th:nth-child(n+5):not(:last-child),
    .data-table td:nth-child(n+5):not(:last-child) {
        display: none;
    }

    .filters {
        gap: 8px;
    }

    .filter-label {
        font-size: 12px;
    }

    .filter-select, .filter-input {
        font-size: 12px;
        padding: 6px 8px;
    }
}

/* ========== 工具类 ========== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.mt-1 { margin-top: 10px; }
.mt-2 { margin-top: 20px; }
.mb-1 { margin-bottom: 10px; }
.mb-2 { margin-bottom: 20px; }
.hidden { display: none !important; }