/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
}

/* 导航栏 */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-brand h1 {
    color: #2c3e50;
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: #6c757d;
    font-weight: 500;
    padding: 10px 15px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    transform: translateY(-2px);
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-info {
    color: #495057;
    font-weight: 500;
}

.logout-btn {
    background: #e74c3c;
    color: white;
    padding: 8px 16px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.logout-btn:hover {
    background: #c0392b;
    transform: translateY(-2px);
}

/* 主内容区域 */
.main-content {
    padding: 30px 20px;
    max-width: 1400px;
    margin: 0 auto;
}

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

.login-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 1.8rem;
}

.login-header p {
    color: #6c757d;
    font-size: 1rem;
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #495057;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 16px;
    transition: all 0.3s ease;
    background: white;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    transform: translateY(-2px);
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
}

.form-help {
    font-size: 0.875rem;
    color: #6c757d;
    margin-top: 5px;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    justify-content: center;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-success {
    background: linear-gradient(135deg, #2ecc71 0%, #27ae60 100%);
    color: white;
}

.btn-warning {
    background: linear-gradient(135deg, #f39c12 0%, #e67e22 100%);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
    color: white;
}

.btn-info {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: white;
}

.btn-outline {
    background: transparent;
    border: 2px solid #667eea;
    color: #667eea;
}

.btn-large {
    padding: 15px 30px;
    font-size: 18px;
}

.btn-icon {
    font-size: 1.2em;
}

/* 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: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 25px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.stat-icon {
    font-size: 3rem;
    opacity: 0.8;
}

.stat-info h3 {
    color: #6c757d;
    font-size: 0.9rem;
    margin-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
}

/* 内容网格 */
.content-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 30px;
}

.content-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid #f8f9fa;
}

.card-header h2 {
    color: #2c3e50;
    font-size: 1.5rem;
}

.card-actions {
    display: flex;
    gap: 10px;
}

/* 任务列表 */
.task-list {
    max-height: 600px;
    overflow-y: auto;
}

.task-item {
    background: white;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 15px;
    border-left: 4px solid #3498db;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.task-item:hover {
    transform: translateX(5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.task-item.urgent {
    border-left-color: #e74c3c;
}

.task-item.completed {
    border-left-color: #2ecc71;
    opacity: 0.7;
}

.task-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.task-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: #2c3e50;
}

.task-due {
    color: #e74c3c;
    font-weight: 500;
    font-size: 0.9rem;
}

.task-description {
    color: #6c757d;
    margin-bottom: 15px;
    line-height: 1.5;
}

.task-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.task-actions .btn {
    padding: 8px 16px;
    font-size: 14px;
}

/* 状态徽章 */
.status-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-left: 10px;
}

.status-pending {
    background: #fff3cd;
    color: #856404;
}

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

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

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #6c757d;
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: 0.5;
}

.empty-state h3 {
    margin-bottom: 10px;
    color: #495057;
}

/* 复选框组 */
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    padding: 8px 0;
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid #ddd;
    border-radius: 4px;
    position: relative;
    transition: all 0.3s ease;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background: #667eea;
    border-color: #667eea;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    color: white;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 12px;
    font-weight: bold;
}

/* 状态横幅 */
.status-banner {
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    text-align: center;
}

.status-active {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.status-inactive {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* 表单操作 */
.form-actions {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

/* 信息网格 */
.info-grid {
    display: grid;
    gap: 15px;
}

.info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid #f8f9fa;
}

.info-label {
    color: #6c757d;
    font-weight: 500;
}

.info-value {
    color: #2c3e50;
    font-weight: 600;
}

/* 日志容器 */
.logs-container {
    max-height: 600px;
    overflow-y: auto;
}

.logs-filter {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.log-entry {
    padding: 15px;
    margin-bottom: 10px;
    border-radius: 8px;
    border-left: 4px solid #3498db;
    background: white;
}

.log-success {
    border-left-color: #2ecc71;
}

.log-error {
    border-left-color: #e74c3c;
}

.log-time {
    font-size: 0.8rem;
    color: #6c757d;
    margin-bottom: 5px;
}

.log-message {
    color: #2c3e50;
    margin-bottom: 5px;
}

.log-error-message {
    color: #e74c3c;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .content-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        height: auto;
        padding: 15px 20px;
    }
    
    .nav-menu {
        flex-direction: column;
        gap: 10px;
        margin-top: 15px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .card-header {
        flex-direction: column;
        gap: 15px;
        align-items: flex-start;
    }
    
    .card-actions {
        width: 100%;
        justify-content: flex-start;
    }
    
    .logs-filter {
        flex-direction: column;
        gap: 10px;
    }
}

/* 动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.content-card {
    animation: fadeIn 0.6s ease-out;
}

.stat-card {
    animation: fadeIn 0.6s ease-out;
}

.task-item {
    animation: fadeIn 0.4s ease-out;
}
/* 备案信息样式 */
.footer {
    background: rgba(255, 255, 255, 0.9);
    border-top: 1px solid #e9ecef;
    padding: 15px 0;
    text-align: center;
    margin-top: auto;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.footer-link {
    color: #6c757d;
    text-decoration: none;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.footer-link:hover {
    color: #495057;
}

.footer-separator {
    color: #dee2e6;
    margin: 0 15px;
}