* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', 'Segoe UI', Arial, sans-serif;
    background: #000;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* 梦幻背景动画 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(143, 211, 244, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(247, 149, 222, 0.3) 0%, transparent 50%);
    animation: gradientShift 15s ease infinite;
    z-index: -1;
}

@keyframes gradientShift {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

/* 毛玻璃卡片样式 */
.glass-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.2);
    padding: 30px;
    margin: 20px auto;
    max-width: 1200px;
}

.glass-card-small {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.2);
    padding: 40px;
    max-width: 450px;
    margin: 100px auto;
}

/* 导航栏 */
.navbar {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding: 15px 0;
}

.navbar-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    font-size: 24px;
    font-weight: bold;
    color: white;
    text-decoration: none;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.navbar-menu {
    display: flex;
    gap: 20px;
    list-style: none;
}

.navbar-menu a {
    color: white;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.navbar-menu a:hover {
    background: rgba(255, 255, 255, 0.2);
}

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

.form-label {
    display: block;
    color: white;
    font-weight: 500;
    margin-bottom: 8px;
    font-size: 14px;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    color: white;
    font-size: 14px;
    outline: none;
    transition: all 0.3s ease;
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.1);
}

.form-textarea {
    min-height: 100px;
    resize: vertical;
    font-family: inherit;
}

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

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

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

.btn-danger {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 87, 108, 0.6);
}

.btn-block {
    width: 100%;
}

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

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

.table th,
.table td {
    padding: 15px;
    text-align: left;
    color: white;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.table th {
    background: rgba(255, 255, 255, 0.1);
    font-weight: 600;
}

.table tr:hover {
    background: rgba(255, 255, 255, 0.05);
}

/* 统计卡片 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.stat-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 25px;
    text-align: center;
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.stat-value {
    font-size: 36px;
    font-weight: bold;
    color: white;
    margin: 10px 0;
}

.stat-label {
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
}

/* 提示消息 */
.alert {
    padding: 15px 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    border-left: 4px solid;
}

.alert-success {
    background: rgba(76, 175, 80, 0.2);
    border-color: #4caf50;
    color: white;
}

.alert-error {
    background: rgba(244, 67, 54, 0.2);
    border-color: #f44336;
    color: white;
}

.alert-info {
    background: rgba(33, 150, 243, 0.2);
    border-color: #2196f3;
    color: white;
}

/* 标题样式 */
h1, h2, h3, h4 {
    color: white;
    margin-bottom: 20px;
}

h1 {
    font-size: 32px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

h2 {
    font-size: 24px;
}

h3 {
    font-size: 20px;
}

/* 链接样式 */
a {
    color: #a8c0ff;
    transition: all 0.3s ease;
}

a:hover {
    color: white;
}

/* 复选框/单选框样式 */
.checkbox-group,
.radio-group {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.checkbox-group label,
.radio-group label {
    color: white;
    cursor: pointer;
    user-select: none;
}

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

/* 文本颜色 */
.text-white {
    color: white;
}

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

/* 间距工具类 */
.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .glass-card {
        padding: 20px;
        margin: 10px;
    }
    
    .glass-card-small {
        margin: 50px 10px;
        padding: 30px 20px;
    }
    
    .navbar-container {
        flex-direction: column;
        gap: 15px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

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

/* Badge 标签 */
.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.badge-success {
    background: rgba(76, 175, 80, 0.3);
    color: white;
}

.badge-warning {
    background: rgba(255, 193, 7, 0.3);
    color: white;
}

.badge-danger {
    background: rgba(244, 67, 54, 0.3);
    color: white;
}

/* 二维码容器 */
.qr-code {
    background: white;
    padding: 20px;
    border-radius: 15px;
    display: inline-block;
    margin: 20px auto;
}