/* 现代化科技感主题样式 - 伙伴CRM系统 */

/* ===== 现代化色彩系统 ===== */
:root {
    /* 主色调 - 科技蓝 */
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;
    --primary-200: #bfdbfe;
    --primary-300: #93c5fd;
    --primary-400: #60a5fa;
    --primary-500: #3b82f6;
    --primary-600: #2563eb;
    --primary-700: #1d4ed8;
    --primary-800: #1e40af;
    --primary-900: #1e3a8a;
    
    /* 渐变色系 */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-success: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-warning: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    --gradient-info: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    --gradient-dark: linear-gradient(135deg, #434343 0%, #000000 100%);
    
    /* 玻璃质感渐变 */
    --glass-gradient: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    --glass-border: rgba(255, 255, 255, 0.18);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    
    /* 中性色 */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* 语义化颜色 */
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --info-color: #3b82f6;
    
    /* 背景色 */
    --bg-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --bg-secondary: #f8fafc;
    --bg-glass: rgba(255, 255, 255, 0.25);
    --bg-card: rgba(255, 255, 255, 0.9);
    --bg-overlay: rgba(0, 0, 0, 0.5);
    
    /* 阴影系统 */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 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);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glass: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    
    /* 边框半径 */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* 间距系统 */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    
    /* 字体系统 */
    --font-family-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    --font-family-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    
    /* 字体大小 */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    
    /* 行高 */
    --leading-tight: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    
    /* 过渡动画 */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
    
    /* Z-index层级 */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* ===== 全局重置和基础样式 ===== */
* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-sans);
    background: var(--bg-secondary);
    color: var(--gray-800);
    line-height: var(--leading-normal);
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

/* 现代化背景 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    opacity: 0.03;
    z-index: -2;
    pointer-events: none;
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(102, 126, 234, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(118, 75, 162, 0.1) 0%, transparent 50%);
    z-index: -1;
    pointer-events: none;
}

/* ===== 现代化侧边栏样式 ===== */
.sidebar {
    background: var(--glass-gradient);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-right: 1px solid var(--glass-border);
    box-shadow: var(--shadow-glass);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.sidebar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    opacity: 0.9;
    z-index: -1;
}

.sidebar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="20" cy="20" r="0.5" fill="%23ffffff" opacity="0.1"/><circle cx="80" cy="80" r="0.5" fill="%23ffffff" opacity="0.1"/><circle cx="40" cy="60" r="0.5" fill="%23ffffff" opacity="0.05"/><circle cx="60" cy="40" r="0.5" fill="%23ffffff" opacity="0.05"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    z-index: -1;
    pointer-events: none;
}

/* 侧边栏头部 */
.sidebar-header {
    position: relative;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.sidebar-header h4 {
    color: white;
    font-weight: 600;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
}

/* 菜单项现代化样式 */
.menu-link {
    position: relative;
    background: transparent;
    border: none;
    border-radius: var(--radius-lg);
    margin: var(--space-1) var(--space-3);
    padding: var(--space-3) var(--space-4);
    color: rgba(255, 255, 255, 0.9);
    transition: all var(--transition-normal);
    overflow: hidden;
}

.menu-link::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: left var(--transition-slow);
}

.menu-link:hover::before {
    left: 100%;
}

.menu-link:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(var(--space-2));
    box-shadow: var(--shadow-md);
    color: white;
}

.menu-link.active {
    background: rgba(255, 255, 255, 0.25);
    color: white;
    box-shadow: var(--shadow-lg);
    border-left: 4px solid rgba(255, 255, 255, 0.8);
}

.menu-link.active::after {
    content: '';
    position: absolute;
    right: var(--space-2);
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background: white;
    border-radius: var(--radius-full);
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.8);
}

/* 菜单图标 */
.menu-icon {
    transition: all var(--transition-normal);
    filter: brightness(0) saturate(100%) invert(94%) sepia(6%) saturate(106%) hue-rotate(205deg) brightness(109%) contrast(96%);
}

.menu-link:hover .menu-icon {
    transform: scale(1.1);
    filter: brightness(0) saturate(100%) invert(100%) sepia(0%) saturate(7500%) hue-rotate(109deg) brightness(105%) contrast(105%) drop-shadow(0 0 5px rgba(255,255,255,0.5));
}

/* ===== 主内容区域现代化 ===== */
.main-content {
    background: transparent;
    min-height: 100vh;
    transition: all var(--transition-normal);
}

/* 顶部导航栏玻璃质感 */
.top-navbar {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--shadow-glass);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

/* ===== 现代化卡片样式 ===== */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    overflow: hidden;
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.8), transparent);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(102, 126, 234, 0.3);
}

.card-header {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding: var(--space-5);
    font-weight: 600;
    color: var(--gray-800);
}

.card-body {
    padding: var(--space-5);
}

/* ===== 现代化统计卡片 ===== */
.stats-card {
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    color: white;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.stats-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    transform: rotate(45deg);
}

.stats-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6), transparent);
}

.stats-card:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--shadow-2xl);
}

.stats-number {
    font-size: var(--text-4xl);
    font-weight: 700;
    margin-bottom: var(--space-2);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 1;
}

.stats-label {
    font-size: var(--text-base);
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

/* ===== 现代化按钮样式 ===== */
.btn {
    border-radius: var(--radius-lg);
    padding: var(--space-3) var(--space-6);
    font-weight: 500;
    font-size: var(--text-sm);
    transition: all var(--transition-normal);
    border: none;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left var(--transition-slow);
}

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

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: white;
}

.btn-success {
    background: var(--gradient-success);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: white;
}

.btn-warning {
    background: var(--gradient-warning);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-warning:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: white;
}

.btn-info {
    background: var(--gradient-info);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-info:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: white;
}

.btn-outline-primary {
    background: transparent;
    border: 2px solid var(--primary-500);
    color: var(--primary-600);
    backdrop-filter: blur(10px);
}

.btn-outline-primary:hover {
    background: var(--primary-500);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ===== 现代化表单样式 ===== */
.form-control, .form-select {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-base);
    transition: all var(--transition-normal);
    color: var(--gray-800);
}

.form-control:focus, .form-select:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1), var(--shadow-md);
    background: white;
}

.form-label {
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: var(--space-2);
    font-size: var(--text-sm);
}

/* ===== 现代化表格样式 ===== */
.table {
    background: transparent;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table th {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: none;
    padding: var(--space-4);
    font-weight: 600;
    color: var(--gray-700);
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.table td {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border: none;
    padding: var(--space-4);
    color: var(--gray-800);
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

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

.table tbody tr:hover {
    background: rgba(102, 126, 234, 0.1);
    transform: scale(1.01);
}

/* ===== 现代化徽章样式 ===== */
.badge {
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.badge.bg-success {
    background: var(--gradient-success);
    color: white;
}

.badge.bg-warning {
    background: var(--gradient-warning);
    color: white;
}

.badge.bg-danger {
    background: var(--gradient-secondary);
    color: white;
}

.badge.bg-info {
    background: var(--gradient-info);
    color: white;
}

.badge.bg-primary {
    background: var(--gradient-primary);
    color: white;
}

/* ===== 现代化分页样式 ===== */
.pagination {
    gap: var(--space-2);
}

.page-link {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--space-3) var(--space-4);
    color: var(--gray-700);
    transition: all var(--transition-normal);
    text-decoration: none;
}

.page-link:hover {
    background: var(--primary-500);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.page-item.active .page-link {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

/* ===== 现代化下拉菜单 ===== */
.dropdown-menu {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: var(--space-2);
}

.dropdown-item {
    border-radius: var(--radius-lg);
    padding: var(--space-3) var(--space-4);
    transition: all var(--transition-fast);
    color: var(--gray-700);
    margin-bottom: var(--space-1);
}

.dropdown-item:hover {
    background: rgba(102, 126, 234, 0.1);
    color: var(--primary-600);
    transform: translateX(var(--space-1));
}

/* ===== 现代化消息提示 ===== */
.alert {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-4) var(--space-5);
    margin-bottom: var(--space-4);
    position: relative;
    overflow: hidden;
}

.alert::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary-500);
}

.alert-success::before {
    background: var(--success-color);
}

.alert-warning::before {
    background: var(--warning-color);
}

.alert-danger::before {
    background: var(--error-color);
}

.alert-info::before {
    background: var(--info-color);
}

/* ===== 现代化模态框 ===== */
.modal-content {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
}

.modal-header {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
}

.modal-body {
    background: transparent;
}

.modal-footer {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 0 0 var(--radius-2xl) var(--radius-2xl);
}

/* ===== 现代化动画效果 ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes shimmer {
    0% {
        background-position: -200px 0;
    }
    100% {
        background-position: calc(200px + 100%) 0;
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.fade-in-left {
    animation: fadeInLeft 0.6s ease-out;
}

.fade-in-right {
    animation: fadeInRight 0.6s ease-out;
}

.pulse {
    animation: pulse 2s infinite;
}

/* ===== 加载动画 ===== */
.loading-shimmer {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200px 100%;
    animation: shimmer 1.5s infinite;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(102, 126, 234, 0.3);
    border-top: 4px solid var(--primary-500);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ===== 响应式设计 ===== */
@media (max-width: 1200px) {
    .container-fluid {
        padding-left: var(--space-4);
        padding-right: var(--space-4);
    }
}

@media (max-width: 992px) {
    .stats-card {
        margin-bottom: var(--space-4);
    }
    
    .card-body {
        padding: var(--space-4);
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        z-index: var(--z-modal);
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .top-navbar {
        padding: var(--space-3) var(--space-4);
    }
    
    .page-content {
        padding: var(--space-4);
    }
    
    .stats-number {
        font-size: var(--text-3xl);
    }
    
    .btn {
        padding: var(--space-2) var(--space-4);
        font-size: var(--text-sm);
    }
    
    .table th,
    .table td {
        padding: var(--space-3);
        font-size: var(--text-sm);
    }
}

@media (max-width: 576px) {
    .page-content {
        padding: var(--space-3);
    }
    
    .card-header,
    .card-body {
        padding: var(--space-3);
    }
    
    .stats-card {
        padding: var(--space-4);
    }
    
    .stats-number {
        font-size: var(--text-2xl);
    }
    
    .btn {
        width: 100%;
        margin-bottom: var(--space-2);
    }
    
    .table-responsive {
        border-radius: var(--radius-lg);
        overflow: hidden;
    }
}

/* ===== 自定义滚动条 ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
    background: rgba(102, 126, 234, 0.5);
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(102, 126, 234, 0.8);
}

/* ===== 文字可读性优化 ===== */
.text-contrast {
    color: var(--gray-800) !important;
}

.text-contrast-light {
    color: var(--gray-600) !important;
}

.text-contrast-muted {
    color: var(--gray-500) !important;
}

/* 确保在所有背景下文字可读 */
.card .text-white,
.modal-content .text-white,
.bg-white .text-white,
.bg-light .text-white {
    color: var(--gray-800) !important;
}

.card .text-muted,
.modal-content .text-muted,
.bg-white .text-muted,
.bg-light .text-muted {
    color: var(--gray-600) !important;
}

/* ===== 特殊效果 ===== */
.glass-effect {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
}

.hover-lift {
    transition: all var(--transition-normal);
}

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

/* ===== 打印样式 ===== */
@media print {
    .sidebar,
    .top-navbar,
    .btn,
    .pagination,
    .dropdown {
        display: none !important;
    }
    
    .main-content {
        margin-left: 0 !important;
    }
    
    .card {
        box-shadow: none !important;
        border: 1px solid #ddd !important;
        background: white !important;
    }
    
    body::before,
    body::after {
        display: none !important;
    }
}

/* ===== 无障碍访问 ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
    :root {
        --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
        --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.3);
        --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
        --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
        --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
    }
    
    .card,
    .btn,
    .form-control {
        border-width: 2px;
    }
}