/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #4CAF50;
    --primary-dark: #388E3C;
    --primary-light: #E8F5E8;
    --secondary-color: #2196F3;
    --secondary-dark: #1976D2;
    --secondary-light: #E3F2FD;
    --accent-color: #FF9800;
    --accent-dark: #F57C00;
    --accent-light: #FFF3E0;
    --danger-color: #F44336;
    --danger-dark: #D32F2F;
    --danger-light: #FFEBEE;
    --success-color: #4CAF50;
    --success-light: #E8F5E8;
    --background-color: #f8f9fa;
    --card-background: #ffffff;
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-light: #999999;
    --border-color: #e0e0e0;
    --border-light: #f0f0f0;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 5px 20px rgba(0, 0, 0, 0.15);
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --transition: all 0.3s ease;
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 14px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* 标题样式 */
h1 {
    color: var(--text-primary);
    margin-bottom: 30px;
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

h2 {
    color: var(--text-primary);
    margin-bottom: 20px;
    font-size: 24px;
    font-weight: 600;
    letter-spacing: -0.3px;
}

h3 {
    color: var(--text-primary);
    margin-bottom: 15px;
    font-size: 18px;
    font-weight: 600;
}

/* 导航栏样式 */
.navbar {
    margin-bottom: 30px;
    padding: 20px 30px;
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.navbar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.navbar:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.navbar .nav-left {
    display: flex;
    align-items: center;
    gap: 30px;
}

.navbar .nav-right {
    display: flex;
    align-items: center;
}

.navbar a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    font-size: 15px;
    padding: 8px 0;
}

.navbar a:hover {
    color: var(--primary-color);
}

.navbar a.active {
    color: var(--primary-color);
    font-weight: 600;
}

.navbar a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 3px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from { width: 0; }
    to { width: 100%; }
}

/* 卡片样式 */
.card {
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 30px;
    margin-bottom: 25px;
    transition: var(--transition);
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    opacity: 0;
    transition: var(--transition);
}

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

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

/* 按钮样式 */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
    text-align: center;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition);
    z-index: -1;
}

.btn:hover::before {
    left: 100%;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(76, 175, 80, 0.4);
}

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

.btn-secondary:hover {
    background-color: var(--secondary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.4);
}

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

.btn-accent:hover {
    background-color: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 152, 0, 0.4);
}

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

.btn-danger:hover {
    background-color: var(--danger-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(244, 67, 54, 0.4);
}

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

.btn-outline:hover {
    background-color: var(--primary-light);
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

/* 表单样式 */
.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 14px;
    transition: var(--transition);
    background-color: white;
    font-family: var(--font-family);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1);
    transform: translateY(-1px);
}

/* 表格样式 */
table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

th, td {
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
}

th {
    background-color: #f8f9fa;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

tr:hover {
    background-color: #f8f9fa;
    transition: var(--transition);
}

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

/* 统计卡片样式 */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 30px;
}

.stat-card {
    padding: 30px;
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.stat-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.stat-amount {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
    transition: var(--transition);
}

.stat-card:hover .stat-amount {
    transform: scale(1.05);
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* 图表容器 */
.chart-container {
    margin-bottom: 30px;
    height: 400px;
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 30px;
    transition: var(--transition);
}

.chart-container:hover {
    box-shadow: var(--shadow-lg);
}

/* 登录页面样式 */
.login-page {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 20px;
}

.login-container {
    background-color: var(--card-background);
    padding: 60px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    width: 450px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.login-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.login-container:hover {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transform: translateY(-5px);
}

.login-container h1 {
    margin-bottom: 40px;
    font-size: 28px;
    font-weight: 700;
}

.login-container h2 {
    margin-bottom: 30px;
    font-size: 20px;
    font-weight: 600;
    color: var(--text-secondary);
}

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.6);
    backdrop-filter: blur(8px);
    transition: var(--transition);
}

.modal-content {
    background-color: var(--card-background);
    margin: 10% auto;
    padding: 40px;
    border-radius: var(--border-radius);
    width: 450px;
    box-shadow: var(--shadow-lg);
    animation: modalFadeIn 0.4s ease;
    position: relative;
    overflow: hidden;
}

.modal-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

@keyframes modalFadeIn {
    from { opacity: 0; transform: translateY(-30px) scale(0.9); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 30px;
}

.btn-cancel {
    padding: 10px 20px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background-color: white;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.btn-cancel:hover {
    background-color: var(--background-color);
    border-color: var(--text-light);
}

.btn-save {
    padding: 10px 20px;
    border: none;
    border-radius: var(--border-radius-sm);
    background-color: var(--primary-color);
    color: white;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.btn-save:hover {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
}

/* 搜索框样式 */
.search-box {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
}

.search-box input {
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 14px;
    transition: var(--transition);
    width: 300px;
    font-family: var(--font-family);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1);
    transform: translateY(-1px);
}

/* 时间选择器样式 */
.time-selector {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
}

.time-btn {
    padding: 12px 24px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background-color: var(--card-background);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
    font-size: 14px;
}

.time-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-1px);
}

.time-btn.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(76, 175, 80, 0.3);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .navbar {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
        padding: 15px 20px;
    }
    
    .navbar .nav-left {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
        width: 100%;
    }
    
    .navbar .nav-right {
        width: 100%;
        justify-content: flex-start;
    }
    
    .stat-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .login-container {
        width: 95%;
        padding: 40px 30px;
    }
    
    .modal-content {
        width: 95%;
        margin: 20% auto;
        padding: 30px 20px;
    }
    
    table {
        font-size: 13px;
    }
    
    th, td {
        padding: 12px;
    }
    
    .card {
        padding: 20px;
    }
    
    .stat-card {
        padding: 20px;
    }
    
    .chart-container {
        padding: 20px;
        height: 300px;
    }
    
    h1 {
        font-size: 24px;
    }
    
    h2 {
        font-size: 20px;
    }
    
    .search-box input {
        width: 250px;
    }
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 消息提示样式 */
.message {
    padding: 16px 20px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 24px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 12px;
    animation: slideInFromLeft 0.3s ease;
}

@keyframes slideInFromLeft {
    from { transform: translateX(-20px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.message.success {
    background-color: var(--success-light);
    color: #2e7d32;
    border-left: 4px solid var(--success-color);
}

.message.error {
    background-color: var(--danger-light);
    color: #c62828;
    border-left: 4px solid var(--danger-color);
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    margin-top: 30px;
    gap: 8px;
}

.pagination a {
    padding: 10px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition);
    font-weight: 500;
}

.pagination a:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-1px);
}

.pagination a.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(76, 175, 80, 0.3);
}

/* 导入区域样式 */
.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    padding: 50px;
    text-align: center;
    margin-bottom: 24px;
    transition: var(--transition);
    background-color: #fafafa;
    cursor: pointer;
}

.upload-area:hover {
    border-color: var(--primary-color);
    background-color: var(--primary-light);
    transform: translateY(-2px);
}

.upload-area.dragover {
    border-color: var(--primary-color);
    background-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1);
}

/* 标签页样式 */
.tab-container {
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    margin-bottom: 24px;
}

.tabs {
    display: flex;
    border-bottom: 1px solid var(--border-light);
    background-color: #f8f9fa;
}

.tab {
    padding: 16px 24px;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: var(--transition);
    font-weight: 600;
    color: var(--text-secondary);
}

.tab:hover {
    color: var(--primary-color);
    background-color: rgba(76, 175, 80, 0.05);
}

.tab.active {
    border-bottom-color: var(--primary-color);
    color: var(--primary-color);
    background-color: white;
}

.tab-content {
    padding: 30px;
}

/* 会员信息样式 */
.member-info {
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 30px;
    margin-bottom: 24px;
    transition: var(--transition);
}

.member-info:hover {
    box-shadow: var(--shadow-lg);
}

.info-item {
    margin: 12px 0;
    font-size: 15px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.info-item strong {
    display: inline-block;
    width: 100px;
    color: var(--text-secondary);
    font-weight: 600;
}

.balance {
    font-size: 28px;
    color: var(--primary-color);
    font-weight: 700;
    transition: var(--transition);
}

.balance:hover {
    transform: scale(1.05);
}

/* 搜索结果样式 */
.search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--card-background);
    border: 1px solid var(--border-color);
    border-top: none;
    border-radius: 0 0 var(--border-radius-sm) var(--border-radius-sm);
    max-height: 250px;
    overflow-y: auto;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    margin-top: 4px;
}

.search-result-item {
    padding: 12px 16px;
    cursor: pointer;
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition);
}

.search-result-item:hover {
    background-color: var(--primary-light);
    color: var(--primary-color);
}

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

/* 按钮组样式 */
.btn-group {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
}

/* 页脚样式 */
.footer {
    margin-top: 50px;
    padding: 20px;
    text-align: center;
    color: var(--text-light);
    font-size: 13px;
}

/* 动画效果 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.5s ease;
}

/* 工具提示样式 */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip .tooltip-text {
    visibility: hidden;
    width: 120px;
    background-color: var(--text-primary);
    color: #fff;
    text-align: center;
    border-radius: var(--border-radius-sm);
    padding: 6px;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 12px;
}

.tooltip:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

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

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a1a1a1;
}