/* macOS风格样式 - 适配移动端 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #007AFF;
    --secondary-color: #5856D6;
    --success-color: #34C759;
    --warning-color: #FF9500;
    --danger-color: #FF3B30;
    --background: #F5F5F7;
    --surface: #FFFFFF;
    --text-primary: #1D1D1F;
    --text-secondary: #86868B;
    --border: #D2D2D7;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-lg: rgba(0, 0, 0, 0.15);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 16px;
    /* 移动端优化 */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    /* 防止移动端双击缩放 */
    touch-action: manipulation;
}

/* 输入框移动端优化 */
input, select, textarea, button {
    /* 移除iOS输入框内阴影 */
    -webkit-appearance: none;
    appearance: none;
}

/* 桌面端输入框样式 */
@media (min-width: 769px) {
    input:not([type="submit"]):not([type="button"]):not([type="reset"]), 
    select, 
    textarea {
        font-size: 14px;
    }
}

/* 移动端输入框必须至少16px以防止iOS自动缩放 */
@media (max-width: 768px) {
    input:not([type="submit"]):not([type="button"]):not([type="reset"]), 
    select, 
    textarea {
        font-size: 16px;
    }
}

/* 登录页面 */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-container {
    width: 100%;
    max-width: 400px;
}

.login-card {
    background: var(--surface);
    border-radius: 16px;
    padding: 40px 30px;
    box-shadow: 0 10px 40px var(--shadow-lg);
}

.login-card h1 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 28px;
    font-weight: 600;
}

.login-footer {
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
    color: var(--text-secondary);
}

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

/* 头部 */
.header {
    background: var(--surface);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 8px var(--shadow);
}

.header h1 {
    font-size: 24px;
    font-weight: 600;
    margin: 0;
}

.user-menu {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    margin-top: 10px;
}

.username {
    font-weight: 500;
    color: var(--text-secondary);
}

/* 按钮 */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

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

.btn-primary:hover {
    background: #0051D5;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 122, 255, 0.3);
}

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

.btn-secondary:hover {
    background: #3D3DB8;
}

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

.btn-danger:hover {
    background: #D92D20;
}

.btn-success {
    background: #10B981;
    color: white;
}

.btn-success:hover {
    background: #059669;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.btn-warning {
    background: #F59E0B;
    color: white;
}

.btn-warning:hover {
    background: #D97706;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 1.5px solid var(--primary-color);
}

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

.btn-block {
    width: 100%;
}

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

/* 主要内容 */
.main-content {
    background: var(--surface);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 2px 8px var(--shadow);
    margin-bottom: 20px;
}

.main-content h2 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--border);
}

/* 仪表盘统计卡片 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    box-shadow: 0 2px 8px var(--shadow);
    transition: transform 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
}

.stat-icon {
    font-size: 36px;
}

.stat-content h3 {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 5px;
    font-weight: 500;
}

.stat-number {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

/* 操作区域 */
.operation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.operation-card {
    background: var(--background);
    border-radius: 12px;
    padding: 25px;
    border: 1.5px solid var(--border);
    transition: all 0.2s;
}

.operation-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px var(--shadow);
}

.operation-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
    font-weight: 600;
}

.operation-card p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 15px;
}

.upload-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.upload-form input[type="file"] {
    padding: 8px;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
}

/* 搜索表单 */
.search-form {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.search-form input {
    flex: 1;
    min-width: 200px;
    padding: 12px;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
}

.search-form input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.filter-select {
    padding: 12px;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    background: var(--background);
    color: var(--text-primary);
    cursor: pointer;
    min-width: 150px;
}

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

/* 表格 */
.table-container {
    overflow-x: auto;
    margin: 20px 0;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.data-table thead {
    background: var(--background);
}

.data-table th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border);
}

.data-table td {
    padding: 12px;
    border-bottom: 1px solid var(--border);
}

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

.row-diff {
    background: #FFF4E6;
}

.diff-positive {
    color: var(--success-color);
    font-weight: 600;
}

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

.text-center {
    text-align: center;
}

.text-error {
    color: var(--danger-color);
    font-weight: 600;
}

/* 徽章 */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.badge-primary {
    background: #E3F2FD;
    color: var(--primary-color);
}

.badge-success {
    background: #E8F5E9;
    color: var(--success-color);
}

.badge-warning {
    background: #FFF3E0;
    color: var(--warning-color);
}

.badge-info {
    background: #E1F5FE;
    color: #0288D1;
}

.badge-danger {
    background: #FFEBEE;
    color: var(--danger-color);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
}

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

.form-group textarea {
    resize: vertical;
}

.form-group small {
    display: block;
    margin-top: 5px;
    font-size: 12px;
    color: var(--text-secondary);
}

.form-card {
    background: var(--background);
    padding: 25px;
    border-radius: 12px;
    border: 1.5px solid var(--border);
}

/* 提示框 */
.alert {
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
}

.alert-success {
    background: #E8F5E9;
    color: #2E7D32;
    border: 1px solid #C8E6C9;
}

.alert-error {
    background: #FFEBEE;
    color: #C62828;
    border: 1px solid #FFCDD2;
}

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

.pagination span {
    color: var(--text-secondary);
    font-size: 14px;
}

/* 后台管理 */
.admin-menu {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.admin-card {
    background: var(--background);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    text-decoration: none;
    color: var(--text-primary);
    border: 1.5px solid var(--border);
    transition: all 0.2s;
}

.admin-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px var(--shadow);
    transform: translateY(-2px);
}

.admin-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.admin-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
    font-weight: 600;
}

.admin-card p {
    color: var(--text-secondary);
    font-size: 14px;
}

.admin-section {
    margin-bottom: 30px;
}

.admin-actions {
    margin-bottom: 20px;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    overflow: auto;
}

.modal-content {
    background: var(--surface);
    margin: 5% auto;
    padding: 30px;
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 10px 40px var(--shadow-lg);
    position: relative;
}

.close {
    position: absolute;
    right: 20px;
    top: 20px;
    font-size: 28px;
    font-weight: bold;
    color: var(--text-secondary);
    cursor: pointer;
}

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

/* 差异查询区域 */
.differences-section {
    margin-top: 20px;
}

/* 扫描器样式 */
#reader {
    position: relative;
}

#reader video {
    width: 100%;
    height: auto;
    border-radius: 8px;
}

#reader canvas {
    display: none;
}

/* 扫描状态提示 */
#scanStatus {
    background: rgba(52, 199, 89, 0.1);
    border: 1px solid rgba(52, 199, 89, 0.3);
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 20px;
}

/* 响应式设计 - 移动端适配 */
@media (max-width: 768px) {
    /* 基础字体大小优化 */
    body {
        font-size: 16px;
    }
    
    .container {
        padding: 10px;
    }
    
    .modal-content {
        width: 95%;
        margin: 2% auto;
        padding: 20px;
        font-size: 16px;
    }
    
    .modal-content h2 {
        font-size: 20px;
        margin-bottom: 15px;
    }
    
    .form-group label {
        font-size: 15px;
        margin-bottom: 8px;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        font-size: 16px;
        padding: 12px;
    }
    
    #reader {
        max-height: 50vh;
    }

    .header {
        flex-direction: column;
        align-items: flex-start;
    }

    .header h1 {
        font-size: 22px;
        margin-bottom: 15px;
    }

    .user-menu {
        width: 100%;
        justify-content: flex-start;
        font-size: 14px;
    }
    
    .user-menu .btn {
        font-size: 14px;
        padding: 8px 12px;
    }

    .main-content {
        padding: 15px;
    }

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

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

    .admin-menu {
        grid-template-columns: 1fr;
    }

    .data-table {
        font-size: 14px;
    }

    .data-table th,
    .data-table td {
        padding: 10px 6px;
        font-size: 14px;
    }
    
    .data-table th {
        font-size: 14px;
        font-weight: 600;
    }

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

    .search-form input {
        width: 100%;
        font-size: 16px;
        padding: 12px;
    }
    
    /* 按钮字体优化 */
    .btn {
        font-size: 14px;
        padding: 10px 16px;
    }
    
    .btn-sm {
        font-size: 13px;
        padding: 6px 12px;
    }

    .stat-card {
        flex-direction: column;
        text-align: center;
    }
    
    /* 模态框表单优化 */
    #scanStatus p {
        font-size: 15px;
    }
    
    /* 扫描区域文字 */
    #scanArea p {
        font-size: 15px;
    }
}

@media (max-width: 480px) {
    /* 超小屏幕进一步优化 */
    body {
        font-size: 15px;
    }
    
    .container {
        padding: 8px;
    }
    
    .header h1 {
        font-size: 20px;
        margin-bottom: 12px;
    }
    
    .user-menu {
        font-size: 13px;
        gap: 6px;
    }
    
    .user-menu .btn {
        font-size: 12px;
        padding: 6px 10px;
    }

    .btn {
        padding: 10px 14px;
        font-size: 14px;
    }
    
    .btn-sm {
        font-size: 12px;
        padding: 5px 10px;
    }
    
    .main-content {
        padding: 10px;
    }

    .stat-number {
        font-size: 22px;
    }
    
    .modal-content {
        padding: 15px;
        font-size: 15px;
    }
    
    .modal-content h2 {
        font-size: 18px;
    }
    
    .form-group label {
        font-size: 14px;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        font-size: 16px;
        padding: 10px;
    }

    .table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .data-table {
        min-width: 600px;
        font-size: 13px;
    }
    
    .data-table th,
    .data-table td {
        padding: 8px 5px;
        font-size: 13px;
    }
    
    /* 搜索框优化 */
    input[type="text"],
    input[type="number"],
    input[type="search"] {
        font-size: 16px !important; /* iOS Safari需要16px以上避免自动缩放 */
        padding: 10px !important;
    }
    
    /* 扫描按钮优化 */
    #scanArea button {
        font-size: 14px;
        padding: 12px 20px;
    }
}