/* 登录页面样式 */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.login-card {
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    padding: 50px 40px;
    max-width: 400px;
    width: 100%;
    text-align: center;
}

.login-card h1 {
    color: #667eea;
    font-size: 2em;
    margin-bottom: 10px;
}

.login-subtitle {
    color: #666;
    margin-bottom: 30px;
    font-size: 14px;
}

.login-card .form-group {
    text-align: left;
    margin-bottom: 20px;
}

.login-card .form-group label {
    display: block;
    margin-bottom: 8px;
    color: #555;
    font-weight: 500;
}

.login-card .input-field {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.login-card .input-field:focus {
    outline: none;
    border-color: #667eea;
}

.login-card .btn-block {
    width: 100%;
    margin-top: 10px;
}

.login-footer {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.login-footer p {
    color: #999;
    font-size: 12px;
}

/* 登出按钮 */
.logout-btn {
    position: absolute;
    top: 30px;
    right: 30px;
    background: rgba(255,255,255,0.2);
    color: white;
    border: 1px solid rgba(255,255,255,0.3);
    padding: 8px 15px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
}

.logout-btn:hover {
    background: rgba(255,255,255,0.3);
}

/* 用户信息显示 */
.user-info {
    position: absolute;
    top: 30px;
    left: 30px;
    color: rgba(255,255,255,0.9);
    font-size: 14px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    overflow: hidden;
}

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px;
    text-align: center;
}

header h1 {
    font-size: 2em;
    margin: 0;
}

/* 标签页导航 */
.tab-nav {
    display: flex;
    background: #f5f5f5;
    border-bottom: 2px solid #ddd;
}

.tab-btn {
    flex: 1;
    padding: 15px;
    border: none;
    background: transparent;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
}

.tab-btn:hover {
    background: #e0e0e0;
}

.tab-btn.active {
    background: white;
    border-bottom: 3px solid #667eea;
    color: #667eea;
    font-weight: bold;
}

/* 标签内容 */
.tab-content {
    display: none;
    padding: 30px;
}

.tab-content.active {
    display: block;
}

/* 卡片样式 */
.card {
    background: white;
    border-radius: 10px;
}

.card h2 {
    color: #333;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #667eea;
}

/* 表单组 */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #555;
    font-weight: 500;
}

.input-field, select, textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.input-field:focus, select:focus, textarea:focus {
    outline: none;
    border-color: #667eea;
}

textarea {
    min-height: 100px;
    resize: vertical;
}

/* 按钮样式 */
.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5568d3;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

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

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

.btn-danger {
    background: #dc3545;
    color: white;
}

.btn-danger:hover {
    background: #c82333;
}

/* 扫码区域 */
.scan-section {
    text-align: center;
    padding: 20px;
}

.or-divider {
    margin: 20px 0;
    color: #999;
    font-weight: 500;
}

#reader {
    margin: 20px auto;
    max-width: 500px;
}

/* 设备信息 */
.device-info {
    margin-top: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
    border-left: 4px solid #667eea;
}

.device-info h3 {
    color: #667eea;
    margin-bottom: 15px;
}

.device-info p {
    margin: 10px 0;
    color: #555;
}

/* 统计卡片 */
.stats-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.stat-card {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    border-left: 4px solid #667eea;
}

.stat-card.green {
    border-left-color: #28a745;
}

.stat-card.red {
    border-left-color: #dc3545;
}

.stat-card h3 {
    color: #666;
    font-size: 14px;
    margin-bottom: 10px;
}

.stat-card p {
    color: #333;
    font-size: 32px;
    font-weight: bold;
}

/* 表格样式 */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

th, td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

th {
    background: #f8f9fa;
    color: #555;
    font-weight: 600;
}

tr:hover {
    background: #f8f9fa;
}

/* 筛选区域 */
.filter-section {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    align-items: center;
}

.filter-section select, .filter-section input {
    flex: 1;
    min-width: 150px;
}

.filter-section label {
    font-weight: 500;
    color: #555;
}

/* 图表容器 */
.chart-container {
    margin: 20px 0;
    max-height: 400px;
}

/* 状态标签 */
.status-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.status-badge.green {
    background: #d4edda;
    color: #155724;
}

.status-badge.red {
    background: #f8d7da;
    color: #721c24;
}

/* 快递信息 */
.courier-info {
    margin-top: 5px;
    font-size: 14px;
    color: #666;
}

.courier-info span {
    font-weight: 500;
    color: #667eea;
}

/* 消息提示 */
.message {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 15px 30px;
    border-radius: 8px;
    color: white;
    font-weight: 500;
    z-index: 1000;
    animation: slideIn 0.3s ease;
    max-width: 400px;
    white-space: pre-line;
}

.message.success {
    background: #28a745;
}

.message.error {
    background: #dc3545;
}

.message.info {
    background: #17a2b8;
}

.message.success {
    background: #28a745;
}

.message.error {
    background: #dc3545;
}

.message.info {
    background: #17a2b8;
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    header h1 {
        font-size: 1.5em;
    }

    .tab-btn {
        font-size: 14px;
        padding: 10px 5px;
    }

    .tab-content {
        padding: 15px;
    }

    .filter-section {
        flex-direction: column;
    }

    .filter-section select, .filter-section input {
        width: 100%;
    }

    table {
        font-size: 14px;
    }

    th, td {
        padding: 8px;
    }

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

@media (max-width: 480px) {
    .btn {
        width: 100%;
        margin-bottom: 10px;
    }

    .scan-section button {
        width: 100%;
        margin-bottom: 10px;
    }
}