/* 建筑耗材采购库存管理系统 - 核心样式 */

/* CSS变量定义 */
:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #eff6ff;
    --success-color: #10b981;
    --success-light: #ecfdf5;
    --warning-color: #f59e0b;
    --warning-light: #fffbeb;
    --danger-color: #ef4444;
    --danger-light: #fef2f2;
    --info-color: #06b6d4;
    --info-light: #ecfeff;
    
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-tertiary: #9ca3af;
    --text-disabled: #d1d5db;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --bg-hover: #f9fafb;
    
    --border-color: #e5e7eb;
    --border-light: #f3f4f6;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    --radius-sm: 4px;
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    --transition: all 0.2s ease;
    --transition-slow: all 0.3s ease;
    
    --sidebar-width: 260px;
    --header-height: 64px;
}

/* 重置样式 */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    line-height: 1.6;
}

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

.login-container {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 440px;
    padding: 20px;
}

.login-box {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: 48px 40px;
    animation: slideUp 0.5s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-header {
    text-align: center;
    margin-bottom: 40px;
}

.login-header .logo {
    margin-bottom: 20px;
}

.login-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.login-header .subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
}

.login-form .form-group {
    margin-bottom: 24px;
}

.login-form label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.login-form label .icon {
    width: 18px;
    height: 18px;
    color: var(--text-secondary);
}

.login-form input[type="text"],
.login-form input[type="password"] {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--bg-primary);
}

.login-form input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.login-form input::placeholder {
    color: var(--text-disabled);
}

.remember-me label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-weight: normal;
}

.remember-me input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--primary-color);
}

.form-error {
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-bottom: 16px;
    min-height: 20px;
}

.btn-login {
    width: 100%;
    padding: 14px 24px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-login:hover:not(:disabled) {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-login:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.login-footer {
    text-align: center;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border-light);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.login-footer strong {
    color: var(--primary-color);
}

/* 登录页背景动画 */
.login-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

.bg-shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
    animation: float 20s infinite ease-in-out;
}

.bg-shape-1 {
    width: 400px;
    height: 400px;
    background: white;
    top: -100px;
    right: -100px;
    animation-delay: 0s;
}

.bg-shape-2 {
    width: 300px;
    height: 300px;
    background: white;
    bottom: -50px;
    left: -50px;
    animation-delay: -5s;
}

.bg-shape-3 {
    width: 200px;
    height: 200px;
    background: white;
    top: 50%;
    left: 50%;
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    25% {
        transform: translate(30px, -30px) rotate(5deg);
    }
    50% {
        transform: translate(-20px, 20px) rotate(-5deg);
    }
    75% {
        transform: translate(20px, 30px) rotate(3deg);
    }
}

/* 后台布局 */
.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);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 100;
    transition: transform 0.3s ease;
}

.sidebar-header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    padding: 0 20px;
    border-bottom: 1px solid var(--border-color);
    background: var(--primary-color);
    color: white;
}

.sidebar-header .logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    color: white;
}

.sidebar-header .logo svg {
    width: 36px;
    height: 36px;
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 16px 0;
}

.nav-section {
    margin-bottom: 8px;
}

.nav-section-title {
    padding: 8px 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-tertiary);
    letter-spacing: 0.5px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
    border-left: 3px solid transparent;
}

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

.nav-item.active {
    background: var(--primary-light);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
}

.nav-item .icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.nav-item .badge {
    margin-left: auto;
    padding: 2px 8px;
    background: var(--danger-color);
    color: white;
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: 600;
}

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

/* 顶部导航 */
.top-header {
    height: var(--header-height);
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-toggle {
    display: none;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
}

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

.page-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-search {
    position: relative;
    width: 280px;
}

.header-search input {
    width: 100%;
    padding: 8px 16px 8px 40px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 0.875rem;
    background: var(--bg-secondary);
    transition: var(--transition);
}

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

.header-search .search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--text-tertiary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.header-action {
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    border-radius: var(--radius);
    transition: var(--transition);
    position: relative;
}

.header-action:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.header-action .icon {
    width: 20px;
    height: 20px;
}

.user-dropdown {
    position: relative;
}

.user-dropdown-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
}

.user-dropdown-btn:hover {
    background: var(--bg-hover);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
}

.user-name {
    font-weight: 500;
    color: var(--text-primary);
}

.user-dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    min-width: 180px;
    display: none;
    z-index: 100;
}

.user-dropdown-menu.show {
    display: block;
}

.user-dropdown-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
}

.user-dropdown-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.user-dropdown-item.danger {
    color: var(--danger-color);
}

.user-dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: 4px 0;
}

/* 页面内容 */
.page-content {
    flex: 1;
    padding: 24px;
}

/* 卡片 */
.card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-body {
    padding: 24px;
}

.card-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

/* 统计卡片 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-icon .icon {
    width: 28px;
    height: 28px;
}

.stat-icon.primary {
    background: var(--primary-light);
    color: var(--primary-color);
}

.stat-icon.success {
    background: var(--success-light);
    color: var(--success-color);
}

.stat-icon.warning {
    background: var(--warning-light);
    color: var(--warning-color);
}

.stat-icon.danger {
    background: var(--danger-light);
    color: var(--danger-color);
}

.stat-info {
    flex: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.stat-change {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    margin-top: 4px;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
}

.stat-change.up {
    color: var(--success-color);
    background: var(--success-light);
}

.stat-change.down {
    color: var(--danger-color);
    background: var(--danger-light);
}

/* 数据表格 */
.table-container {
    overflow-x: auto;
}

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

.data-table th,
.data-table td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.875rem;
    background: var(--bg-secondary);
    white-space: nowrap;
}

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

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

.data-table td {
    color: var(--text-primary);
    font-size: 0.875rem;
}

.table-actions {
    display: flex;
    gap: 8px;
}

.table-action {
    padding: 6px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.table-action:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.table-action.danger:hover {
    background: var(--danger-light);
    color: var(--danger-color);
}

.table-action .icon {
    width: 16px;
    height: 16px;
}

/* 状态标签 */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.status-badge.active {
    background: var(--success-light);
    color: var(--success-color);
}

.status-badge.inactive {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.status-badge.warning {
    background: var(--warning-light);
    color: var(--warning-color);
}

.status-badge.danger {
    background: var(--danger-light);
    color: var(--danger-color);
}

.stock-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.stock-badge.normal {
    background: var(--success-light);
    color: var(--success-color);
}

.stock-badge.low {
    background: var(--warning-light);
    color: var(--warning-color);
}

.stock-badge.out {
    background: var(--danger-light);
    color: var(--danger-color);
}

/* 表单样式 */
.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 20px;
}

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

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

.form-label.required::after {
    content: '*';
    color: var(--danger-color);
    margin-left: 4px;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 0.875rem;
    transition: var(--transition);
    background: var(--bg-primary);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-control::placeholder {
    color: var(--text-disabled);
}

.form-control.error {
    border-color: var(--danger-color);
}

.form-error-text {
    color: var(--danger-color);
    font-size: 0.75rem;
    margin-top: 4px;
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 10px center;
    background-repeat: no-repeat;
    background-size: 20px;
    padding-right: 40px;
}

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

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-decoration: none;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn .icon {
    width: 18px;
    height: 18px;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--primary-hover);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--border-color);
}

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

.btn-success:hover:not(:disabled) {
    background: #059669;
}

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

.btn-danger:hover:not(:disabled) {
    background: #dc2626;
}

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

.btn-warning:hover:not(:disabled) {
    background: #d97706;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.75rem;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 1rem;
}

.btn-icon {
    padding: 8px;
}

/* 分页 */
.pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
}

.pagination-info {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.pagination-controls {
    display: flex;
    align-items: center;
    gap: 4px;
}

.pagination-btn {
    min-width: 36px;
    height: 36px;
    padding: 0 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
}

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

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

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

/* 工具栏 */
.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.toolbar-left {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.toolbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.toolbar-actions {
    display: flex;
    gap: 8px;
}

.search-box {
    position: relative;
    width: 280px;
}

.search-box input {
    width: 100%;
    padding: 10px 16px 10px 40px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 0.875rem;
    transition: var(--transition);
}

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

.search-box .icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--text-tertiary);
}

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

.filter-group label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.filter-group select {
    padding: 8px 32px 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 0.875rem;
    background: var(--bg-primary);
    cursor: pointer;
}

/* 模态框 */
.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: 1000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform: scale(0.9);
    transition: var(--transition);
}

.modal-overlay.show .modal {
    transform: scale(1);
}

.modal-lg {
    max-width: 800px;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

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

.modal-body {
    padding: 24px;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

/* 消息提示 */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    background: var(--bg-primary);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    min-width: 300px;
    animation: slideInRight 0.3s ease;
}

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

.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);
}

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

.toast-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.toast.success .toast-icon {
    color: var(--success-color);
}

.toast.error .toast-icon {
    color: var(--danger-color);
}

.toast.warning .toast-icon {
    color: var(--warning-color);
}

.toast.info .toast-icon {
    color: var(--info-color);
}

.toast-message {
    flex: 1;
    font-size: 0.875rem;
    color: var(--text-primary);
}

.toast-close {
    padding: 4px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-tertiary);
    transition: var(--transition);
}

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

/* 图表容器 */
.chart-container {
    position: relative;
    height: 300px;
}

.chart-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 24px;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
}

.empty-state .icon {
    width: 80px;
    height: 80px;
    color: var(--text-tertiary);
    margin-bottom: 16px;
}

.empty-state h3 {
    font-size: 1.125rem;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.empty-state p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

/* 加载状态 */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* 响应式设计 */
@media (max-width: 1200px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .chart-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 992px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .header-toggle {
        display: flex;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .modal {
        max-width: calc(100% - 40px);
        margin: 20px;
    }
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .toolbar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .toolbar-left,
    .toolbar-right {
        width: 100%;
        justify-content: space-between;
    }
    
    .search-box {
        width: 100%;
    }
    
    .header-search {
        display: none;
    }
    
    .page-content {
        padding: 16px;
    }
    
    .card-body {
        padding: 16px;
    }
    
    .data-table th,
    .data-table td {
        padding: 10px 12px;
    }
    
    .pagination {
        flex-direction: column;
        gap: 12px;
    }
}

@media (max-width: 480px) {
    .login-box {
        padding: 32px 24px;
    }
    
    .login-header h1 {
        font-size: 1.25rem;
    }
    
    .btn {
        padding: 10px 16px;
    }
    
    .header-right {
        gap: 8px;
    }
    
    .user-name {
        display: none;
    }
}

/* 打印样式 */
@media print {
    .sidebar,
    .top-header,
    .btn,
    .toolbar {
        display: none !important;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}

/* 辅助类 */
.text-primary { color: var(--primary-color); }
.text-success { color: var(--success-color); }
.text-warning { color: var(--warning-color); }
.text-danger { color: var(--danger-color); }
.text-secondary { color: var(--text-secondary); }

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

.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }

.flex { display: flex; }
.flex-1 { flex: 1; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }

.hidden { display: none; }

/* 链接样式 */
.link-primary {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.link-primary:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

.link-primary:active {
    color: var(--primary-hover);
}

/* 大模态框 */
.modal.large {
    max-width: 1000px;
}

/* 超大模态框 */
.modal.xlarge {
    max-width: 1200px;
    max-height: 90vh;
}

/* 全屏模态框 */
.modal.full {
    width: 100%;
    max-width: 100vw;
    height: 100vh;
    max-height: 100vh;
    border-radius: 0;
    margin: 0;
}

.modal.full .modal-body {
    padding: 0;
    overflow-y: auto;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.modal.full #supplierDetailContent {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
}

/* 小模态框 */
.modal.small {
    max-width: 400px;
}

/* 产品品牌样式 */
.product-brand {
    display: inline-block;
    padding: 2px 6px;
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 4px;
    margin-right: 6px;
    vertical-align: middle;
}

/* 开关样式 */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
    flex-shrink: 0;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #e5e7eb;
    transition: 0.3s;
    border-radius: 24px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: 0.3s;
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.toggle-switch input:checked + .toggle-slider {
    background-color: var(--primary-color);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(20px);
}

.toggle-switch input:focus + .toggle-slider {
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.toggle-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-left: 8px;
    user-select: none;
}

/* ========== 时间维度切换按钮组 ========== */
.period-selector {
    display: inline-flex;
    align-items: center;
    background: var(--bg-tertiary);
    padding: 4px;
    border-radius: var(--radius-lg);
    gap: 4px;
}

.period-btn {
    padding: 8px 18px;
    font-size: 0.8rem;
    font-weight: 500;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.period-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    opacity: 0;
    transition: opacity 0.2s ease;
    z-index: 0;
    border-radius: var(--radius);
}

.period-btn span {
    position: relative;
    z-index: 1;
}

.period-btn:hover {
    color: var(--primary-color);
    background: rgba(37, 99, 235, 0.08);
}

.period-btn.active {
    color: white;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
    transform: translateY(-1px);
}

.period-btn.active:hover {
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.4);
}

/* 移动端适配 */
@media (max-width: 768px) {
    .period-selector {
        padding: 3px;
        gap: 2px;
    }
    
    .period-btn {
        padding: 6px 12px;
        font-size: 0.75rem;
    }
}