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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: #333;
    background-color: #f5f7fa;
}

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

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-box {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    padding: 40px;
    animation: slideIn 0.5s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
}

.logo i {
    font-size: 32px;
    color: #667eea;
    margin-right: 10px;
}

.logo h1 {
    font-size: 24px;
    font-weight: 600;
    color: #333;
}

.login-header p {
    color: #666;
    font-size: 14px;
}

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

.login-form .form-group label {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #999;
    font-size: 16px;
}

.login-form .form-group input {
    width: 100%;
    padding: 12px 15px 12px 45px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.3s ease;
}

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

.toggle-password {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #999;
    cursor: pointer;
    font-size: 16px;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.checkbox {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.checkbox input {
    margin-right: 8px;
}

.forgot-password {
    color: #667eea;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.forgot-password:hover {
    color: #764ba2;
}

.login-button {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 8px;
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.login-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.login-footer {
    text-align: center;
    margin-top: 30px;
    color: #999;
    font-size: 12px;
}

/* 主控制台布局 */
.admin-container {
    display: flex;
    min-height: 100vh;
}

/* 侧边栏导航 */
.sidebar {
    width: 250px;
    background: #333333;
    /* background: #2d3748; */
    color: #fff;
    transition: all 0.3s ease;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid #3a4557;
}

.sidebar-logo {
    display: flex;
    align-items: center;
}

.sidebar-logo i {
    font-size: 24px;
    color: #667eea;
    margin-right: 10px;
}

.sidebar-logo h2 {
    font-size: 18px;
    font-weight: 600;
}

.nav-menu {
    list-style: none;
    padding: 20px 0;
}

.nav-item {
    margin: 5px 0;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: #e2e8f0;
    text-decoration: none;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.nav-link:hover {
    background: rgba(102, 126, 234, 0.1);
    border-left-color: #667eea;
    color: #fff;
}

.nav-link.active {
    background: rgba(102, 126, 234, 0.2);
    border-left-color: #667eea;
    color: #fff;
}

.nav-link i {
    font-size: 16px;
    margin-right: 12px;
    width: 20px;
}

/* 主内容区域 */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: #f5f7fa;
}

/* 顶部导航栏 */
.top-nav {
    background: #fff;
    padding: 15px 20px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.search-box {
    position: relative;
    width: 300px;
}

.search-box input {
    width: 100%;
    padding: 10px 15px 10px 40px;
    border: 1px solid #e0e0e0;
    border-radius: 20px;
    font-size: 14px;
}

.search-box i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #999;
}

.user-info {
    display: flex;
    align-items: center;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 600;
    margin-right: 10px;
}

.user-details {
    text-align: right;
}

.user-name {
    font-weight: 600;
    font-size: 14px;
}

.user-role {
    font-size: 12px;
    color: #999;
}

/* 页面内容 */
.page-content {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.page-title {
    font-size: 24px;
    font-weight: 600;
    color: #333;
}

.action-buttons {
    display: flex;
    gap: 10px;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 5px;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.btn-secondary {
    background: #e2e8f0;
    color: #333;
}

.btn-secondary:hover {
    background: #cbd5e0;
}

.btn-danger {
    background: #f56565;
    color: #fff;
}

.btn-danger:hover {
    background: #e53e3e;
}

/* 卡片样式 */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.card {
    background: #fff;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.card-title {
    font-size: 14px;
    color: #666;
    font-weight: 500;
}

.card-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: #fff;
}

.card-icon.blue {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.card-icon.green {
    background: linear-gradient(135deg, #48bb78 0%, #2f855a 100%);
}

.card-icon.orange {
    background: linear-gradient(135deg, #ed8936 0%, #c05621 100%);
}

.card-icon.red {
    background: linear-gradient(135deg, #f56565 0%, #c53030 100%);
}

.card-value {
    font-size: 28px;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
}

.card-change {
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.card-change.positive {
    color: #48bb78;
}

.card-change.negative {
    color: #f56565;
}

/* 表格样式 */
.table-container {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.table-header {
    padding: 20px;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.table-title {
    font-size: 16px;
    font-weight: 600;
    color: #333;
}

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

.table-wrapper {
    overflow-x: auto;
}

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

th, td {
    padding: 15px 20px;
    text-align: left;
    border-bottom: 1px solid #e0e0e0;
}

th {
    background: #f7fafc;
    font-weight: 600;
    color: #333;
    font-size: 14px;
}

td {
    font-size: 14px;
    color: #666;
}

tr:hover {
    background: #f7fafc;
}

.table-pagination {
    padding: 20px;
    border-top: 1px solid #e0e0e0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.pagination-info {
    font-size: 14px;
    color: #666;
}

.pagination-controls {
    display: flex;
    gap: 5px;
}

.pagination-btn {
    padding: 8px 12px;
    border: 1px solid #e0e0e0;
    background: #fff;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.pagination-btn:hover {
    background: #f7fafc;
}

.pagination-btn.active {
    background: #667eea;
    color: #fff;
    border-color: #667eea;
}

/* 表单样式 */
.form-container {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 30px;
}

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

.form-group label {
    display: block;
    font-weight: 500;
    color: #333;
    margin-bottom: 8px;
    font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    font-size: 14px;
    transition: all 0.3s ease;
}

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

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.form-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 30px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .sidebar {
        width: 60px;
    }
    
    .sidebar-logo h2,
    .nav-link span {
        display: none;
    }
    
    .nav-link i {
        margin-right: 0;
    }
    
    .search-box {
        width: 200px;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .action-buttons {
        width: 100%;
        justify-content: space-between;
    }
    
    .btn {
        flex: 1;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .login-box {
        padding: 30px 20px;
    }
    
    .top-nav {
        flex-direction: column;
        gap: 10px;
        align-items: stretch;
    }
    
    .search-box {
        width: 100%;
    }
    
    .user-info {
        justify-content: space-between;
    }
    
    .page-content {
        padding: 10px;
    }
    
    .table-container {
        border-radius: 8px;
    }
    
    th, td {
        padding: 10px;
    }
}

/* 弹出窗口样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.modal-content {
    background-color: #fff;
    margin: 5% auto;
    padding: 30px;
    border-radius: 16px;
    width: 90%;
    max-width: 850px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #e0e0e0;
}

.modal-title {
    font-size: 22px;
    font-weight: 600;
    color: #333;
    display: flex;
    align-items: center;
    gap: 10px;
}

.modal-title i {
    color: #667eea;
    font-size: 24px;
}

.close {
    color: #aaa;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.close:hover {
    color: #333;
    background-color: #f5f7fa;
    transform: rotate(90deg);
}

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

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    font-weight: 500;
    color: #333;
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    font-size: 14px;
    transition: all 0.3s ease;
}

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

.form-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #e0e0e0;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        margin: 10% auto;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .form-actions .btn {
        width: 100%;
        justify-content: center;
    }
}