:root {
    --primary-color: #667eea;
    --primary-dark: #764ba2;
    --success-color: #4caf50;
    --warning-color: #ff9800;
    --danger-color: #ef4444;
    --info-color: #2196f3;
    --text-primary: #333;
    --text-secondary: #666;
    --text-muted: #999;
    --bg-primary: #0a0e27;
    --bg-secondary: #1a1f3a;
    --bg-card: rgba(255, 255, 255, 0.02);
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 14, 39, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.loading-overlay.fade-out {
    opacity: 0;
    pointer-events: none;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(102, 126, 234, 0.2);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-text {
    margin-top: 20px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    letter-spacing: 2px;
}

.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    min-width: 280px;
    max-width: 400px;
    padding: 16px 20px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease;
    color: white;
    font-size: 14px;
}

.toast.fade-out {
    animation: slideOut 0.3s ease forwards;
}

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

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

.toast-success {
    background: linear-gradient(135deg, #4caf50 0%, #45a049 100%);
}

.toast-error {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

.toast-warning {
    background: linear-gradient(135deg, #ff9800 0%, #f57c00 100%);
}

.toast-info {
    background: linear-gradient(135deg, #2196f3 0%, #1976d2 100%);
}

.toast-icon {
    font-size: 20px;
    flex-shrink: 0;
}

.toast-content {
    flex: 1;
}

.toast-close {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    font-size: 18px;
    cursor: pointer;
    padding: 0;
    line-height: 1;
    transition: color var(--transition-fast);
}

.toast-close:hover {
    color: white;
}

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

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: rgba(255, 255, 255, 0.8);
}

.form-input {
    width: 100%;
    padding: 14px 18px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 15px;
    color: white;
    transition: all var(--transition-normal);
    outline: none;
    font-family: inherit;
}

.form-input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.form-input:focus {
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

.form-input.error {
    border-color: var(--danger-color);
    background: rgba(239, 68, 68, 0.05);
}

.form-input.success {
    border-color: var(--success-color);
    background: rgba(76, 175, 80, 0.05);
}

.form-error {
    font-size: 12px;
    color: var(--danger-color);
    margin-top: 6px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.form-hint {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.4);
    margin-top: 6px;
}

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

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23999' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 15px center;
    padding-right: 40px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
    font-family: inherit;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: rgba(255, 255, 255, 0.8);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-success {
    background: linear-gradient(135deg, #4caf50 0%, #45a049 100%);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

.btn-lg {
    padding: 18px 40px;
    font-size: 16px;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.btn-loading {
    position: relative;
    color: transparent !important;
}

.btn-loading::after {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    gap: 4px;
}

.status-pending {
    background: rgba(255, 152, 0, 0.15);
    color: #ff9800;
}

.status-approved {
    background: rgba(76, 175, 80, 0.15);
    color: #4caf50;
}

.status-rejected {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
}

.status-processing {
    background: rgba(33, 150, 243, 0.15);
    color: #2196f3;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: all var(--transition-normal);
}

.card:hover {
    background: rgba(255, 255, 255, 0.04);
    box-shadow: var(--shadow-md);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: white;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: rgba(255, 255, 255, 0.5);
}

.empty-state-icon {
    font-size: 64px;
    margin-bottom: 20px;
    opacity: 0.5;
}

.empty-state-text {
    font-size: 16px;
    margin-bottom: 20px;
}

.skeleton {
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.05) 25%, rgba(255, 255, 255, 0.1) 50%, rgba(255, 255, 255, 0.05) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-sm);
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

.skeleton-text {
    height: 16px;
    margin-bottom: 10px;
}

.skeleton-title {
    height: 24px;
    width: 60%;
    margin-bottom: 15px;
}

.skeleton-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
}

.skeleton-image {
    height: 200px;
}

@media (max-width: 768px) {
    .toast-container {
        left: 10px;
        right: 10px;
        top: 10px;
    }

    .toast {
        min-width: auto;
        width: 100%;
    }

    .btn {
        padding: 12px 24px;
    }

    .card {
        padding: 16px;
    }

    .form-input {
        padding: 12px 14px;
    }
}

@media (max-width: 480px) {
    .btn-group {
        flex-direction: column;
    }

    .btn-group .btn {
        width: 100%;
    }
}

.fade-enter {
    opacity: 0;
}

.fade-enter-active {
    opacity: 1;
    transition: opacity var(--transition-normal);
}

.fade-exit {
    opacity: 1;
}

.fade-exit-active {
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.slide-up-enter {
    opacity: 0;
    transform: translateY(20px);
}

.slide-up-enter-active {
    opacity: 1;
    transform: translateY(0);
    transition: all var(--transition-normal);
}

.scale-enter {
    opacity: 0;
    transform: scale(0.9);
}

.scale-enter-active {
    opacity: 1;
    transform: scale(1);
    transition: all var(--transition-normal);
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: rgba(102, 126, 234, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(102, 126, 234, 0.5);
}

::selection {
    background: rgba(102, 126, 234, 0.3);
    color: white;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow-x: hidden;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
}

img {
    max-width: 100%;
    height: auto;
}

button {
    font-family: inherit;
}

input, select, textarea {
    font-family: inherit;
}

@media (max-width: 1200px) {
    .container {
        padding: 0 20px;
    }
    
    .grid-4 {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .mobile-menu-btn {
        display: flex !important;
    }
    
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .grid-2 {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .info-section {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .header {
        padding: 10px 15px;
    }
    
    .header-content {
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: rgba(10, 14, 39, 0.98);
        flex-direction: column;
        padding: 20px;
        gap: 10px;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }
    
    .nav-menu.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-menu a {
        padding: 12px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .mobile-menu-toggle {
        display: block !important;
    }
    
    .page-title {
        font-size: 24px;
    }
    
    .grid-4, .grid-3, .grid-2 {
        grid-template-columns: 1fr;
    }
    
    .table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .data-table {
        min-width: 600px;
    }
    
    .data-table th,
    .data-table td {
        padding: 10px 12px;
        font-size: 13px;
    }
    
    .modal {
        width: 95%;
        padding: 20px;
        margin: 10px;
    }
    
    .modal-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .modal-actions {
        flex-direction: column;
    }
    
    .modal-actions .btn {
        width: 100%;
    }
    
    .card {
        padding: 16px;
    }
    
    .settings-card {
        padding: 20px;
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .btn-group .btn {
        width: 100%;
    }
    
    .pagination {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .pagination-info {
        width: 100%;
        text-align: center;
        margin-bottom: 10px;
    }
    
    .search-box {
        flex-direction: column;
    }
    
    .search-box input {
        width: 100%;
    }
    
    .filter-section {
        flex-direction: column;
        gap: 10px;
    }
    
    .filter-section .form-group {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 8px 10px;
    }
    
    .logo {
        font-size: 18px;
    }
    
    .page-title {
        font-size: 20px;
    }
    
    .page-subtitle {
        font-size: 12px;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .btn-sm {
        padding: 6px 12px;
        font-size: 12px;
    }
    
    .form-input {
        padding: 10px 14px;
        font-size: 14px;
    }
    
    .form-label {
        font-size: 13px;
    }
    
    .card {
        padding: 12px;
    }
    
    .card-title {
        font-size: 16px;
    }
    
    .status-badge {
        padding: 3px 8px;
        font-size: 11px;
    }
    
    .data-table th,
    .data-table td {
        padding: 8px 10px;
        font-size: 12px;
    }
    
    .action-btn {
        padding: 4px 8px;
        font-size: 11px;
    }
    
    .empty-state {
        padding: 40px 15px;
    }
    
    .empty-state-icon {
        font-size: 48px;
    }
    
    .empty-state-text {
        font-size: 14px;
    }
    
    .info-item {
        padding: 10px 12px;
    }
    
    .info-item-text {
        font-size: 13px;
    }
    
    .case-item {
        flex-direction: column;
    }
    
    .case-image {
        width: 100%;
        height: 120px;
    }
    
    .case-actions {
        width: 100%;
        justify-content: flex-end;
        margin-top: 10px;
    }
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn {
    display: none;
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    border: none;
    font-size: 24px;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    z-index: 100;
    align-items: center;
    justify-content: center;
}

.table-container {
    width: 100%;
    overflow-x: auto;
}

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

.data-table th {
    background: rgba(255, 255, 255, 0.05);
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.data-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
    color: rgba(255, 255, 255, 0.8);
}

.data-table tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.action-btn {
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    margin-right: 5px;
}

.action-btn:last-child {
    margin-right: 0;
}

.action-btn-edit {
    background: rgba(102, 126, 234, 0.2);
    color: #667eea;
}

.action-btn-edit:hover {
    background: rgba(102, 126, 234, 0.3);
}

.action-btn-view {
    background: rgba(33, 150, 243, 0.2);
    color: #2196f3;
}

.action-btn-view:hover {
    background: rgba(33, 150, 243, 0.3);
}

.action-btn-delete {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
}

.action-btn-delete:hover {
    background: rgba(239, 68, 68, 0.3);
}

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
    padding: 15px 0;
}

.pagination-btn {
    min-width: 36px;
    height: 36px;
    padding: 0 12px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.pagination-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.pagination-btn.active {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-color: var(--primary-color);
    color: white;
}

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

.pagination-info {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    margin: 0 10px;
}

.search-box {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.search-box input {
    flex: 1;
    padding: 10px 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: white;
    font-size: 14px;
}

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

.search-box button {
    padding: 10px 20px;
}

.filter-section {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.filter-section .form-group {
    margin-bottom: 0;
    min-width: 150px;
}

.filter-section .form-input {
    padding: 10px 14px;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
}

.info-section {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}