/* 芒果音乐播放器系统 - 公共样式 */

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

:root {
    --primary-color: #FF8C00;
    --primary-light: #FFA500;
    --primary-lighter: #FFD700;
    --primary-rgb: 255, 140, 0;
    --text-color: #1e293b;
    --text-secondary: #64748b;
    --bg-color: #f8fafc;
    --bg-white: #ffffff;
    --border-color: #e2e8f0;
    --success-color: #22c55e;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
}

.navbar-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.navbar-logo {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-lighter));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 18px;
}

.navbar-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-color);
}

.navbar-right {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s;
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link.active {
    font-weight: 600;
}

.user-menu {
    position: relative;
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-lighter));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    min-width: 180px;
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s;
}

.user-menu:hover .user-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: block;
    padding: 10px 16px;
    color: var(--text-color);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.2s;
}

.dropdown-item:hover {
    background: var(--bg-color);
    color: var(--primary-color);
}

.dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: 8px 0;
}

/* 主内容区 */
.main-content {
    padding-top: 64px;
    min-height: 100vh;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

/* 卡片 */
.card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.card-header {
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.card-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-color);
}

.card-desc {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 4px;
}

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

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: #334155;
    margin-bottom: 8px;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-size: 14px;
    transition: all 0.2s;
    background: var(--bg-white);
    color: var(--text-color);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-hint {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 6px;
}

/* 按钮 */
.btn {
    padding: 10px 20px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(var(--primary-rgb), 0.4);
}

.btn-secondary {
    background: var(--bg-white);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-danger {
    background: var(--error-color);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-success {
    background: var(--success-color);
    color: white;
}

.btn-success:hover {
    background: #16a34a;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
    border-radius: 8px;
}

.btn-block {
    width: 100%;
}

/* 提示框 */
.alert {
    padding: 12px 16px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: 14px;
}

.alert-error {
    background: #fef2f2;
    color: #dc2626;
    border: 1px solid #fecaca;
}

.alert-success {
    background: #f0fdf4;
    color: #16a34a;
    border: 1px solid #bbf7d0;
}

.alert-warning {
    background: #fffbeb;
    color: #d97706;
    border: 1px solid #fde68a;
}

.alert-info {
    background: #eff6ff;
    color: #2563eb;
    border: 1px solid #bfdbfe;
}

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

.table th,
.table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
}

.table th {
    background: var(--bg-color);
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table tr:hover {
    background: var(--bg-color);
}

/* 状态标签 */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.badge-success {
    background: rgba(34, 197, 94, 0.1);
    color: var(--success-color);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

.badge-primary {
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--primary-color);
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 24px;
}

.page-link {
    padding: 8px 14px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-color);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.2s;
}

.page-link:hover,
.page-link.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 8px;
}

.empty-desc {
    font-size: 14px;
    margin-bottom: 20px;
}

/* 开关 */
.switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .3s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .3s;
    border-radius: 50%;
}

input:checked + .slider {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
}

input:checked + .slider:before {
    transform: translateX(20px);
}

/* 配置模块 */
.config-section {
    margin-bottom: 24px;
}

.config-section-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.config-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.config-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px;
    background: var(--bg-color);
    border-radius: 10px;
}

.config-item-label {
    font-size: 14px;
    color: var(--text-color);
}

/* 响应式 */
@media (max-width: 768px) {
    .navbar {
        padding: 0 16px;
    }
    
    .nav-links {
        display: none;
    }
    
    .container {
        padding: 16px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .config-grid {
        grid-template-columns: 1fr;
    }
    
    .table {
        font-size: 12px;
    }
    
    .table th,
    .table td {
        padding: 8px;
    }
}

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

.fade-in {
    animation: fadeIn 0.3s ease-out;
}

/* 液态玻璃效果 */
.glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* ========== 统计卡片 ========== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 24px;
}
.stat-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    transition: all 0.3s;
}
.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
}
.stat-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}
.stat-card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}
.stat-card-icon.primary { background: rgba(var(--primary-rgb), 0.1); color: var(--primary-color); }
.stat-card-icon.success { background: rgba(34, 197, 94, 0.1); color: var(--success-color); }
.stat-card-icon.warning { background: rgba(245, 158, 11, 0.1); color: var(--warning-color); }
.stat-card-icon.danger { background: rgba(239, 68, 68, 0.1); color: var(--error-color); }
.stat-card-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 4px;
}
.stat-card-label {
    font-size: 14px;
    color: var(--text-secondary);
}
.stat-card-change {
    font-size: 12px;
    margin-top: 8px;
}
.stat-card-change.up { color: var(--success-color); }
.stat-card-change.down { color: var(--error-color); }

/* ========== 搜索框 ========== */
.search-box {
    position: relative;
    margin-bottom: 20px;
}
.search-input {
    width: 100%;
    padding: 12px 16px 12px 44px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-size: 14px;
    transition: all 0.2s;
}
.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
}
.search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 16px;
}

/* ========== 批量操作 ========== */
.batch-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    padding: 12px 16px;
    background: var(--bg-color);
    border-radius: 10px;
    align-items: center;
}
.batch-actions label {
    font-size: 14px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ========== 公告 ========== */
.announcement {
    background: linear-gradient(135deg, #fff7ed 0%, #fffbeb 100%);
    border: 1px solid rgba(var(--primary-rgb), 0.2);
    border-radius: 12px;
    padding: 16px 20px;
    margin-bottom: 24px;
    display: flex;
    gap: 12px;
    align-items: flex-start;
}
.announcement-icon {
    font-size: 20px;
    color: var(--primary-color);
    flex-shrink: 0;
    margin-top: 2px;
}
.announcement-content {
    flex: 1;
}
.announcement-title {
    font-size: 15px;
    font-weight: 600;
    color: #92400e;
    margin-bottom: 4px;
}
.announcement-text {
    font-size: 14px;
    color: #78350f;
    line-height: 1.6;
}
.announcement-time {
    font-size: 12px;
    color: #a16207;
    margin-top: 6px;
}

/* ========== 二维码 ========== */
.qr-code-box {
    text-align: center;
    padding: 24px;
    background: var(--bg-white);
    border-radius: 16px;
    border: 1px solid var(--border-color);
}
.qr-code-img {
    width: 200px;
    height: 200px;
    border-radius: 12px;
    margin-bottom: 16px;
    border: 4px solid white;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}
.qr-code-text {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    word-break: break-all;
}

/* ========== 预览区域 ========== */
.preview-section {
    background: #1e1e1e;
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 24px;
}
.preview-header {
    background: #2d2d2d;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.preview-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}
.preview-dot.red { background: #ff5f57; }
.preview-dot.yellow { background: #febc2e; }
.preview-dot.green { background: #28c840; }
.preview-title {
    flex: 1;
    text-align: center;
    color: #94a3b8;
    font-size: 13px;
}
.preview-body {
    min-height: 300px;
    background: #f8fafc;
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ========== 代码展示 ========== */
.code-block {
    background: #1e1e1e;
    border-radius: 12px;
    padding: 20px;
    overflow-x: auto;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 13px;
    line-height: 1.6;
    color: #d4d4d4;
    margin: 16px 0;
}
.code-block .tag { color: #569cd6; }
.code-block .attr { color: #9cdcfe; }
.code-block .string { color: #ce9178; }
.code-block .comment { color: #6a9955; }

/* ========== Tab切换 ========== */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 24px;
    gap: 4px;
}
.tab-item {
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
    background: none;
    border-top: none;
    border-left: none;
    border-right: none;
}
.tab-item:hover {
    color: var(--text-color);
}
.tab-item.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    font-weight: 600;
}
.tab-content {
    display: none;
}
.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease-out;
}

/* ========== 日志列表 ========== */
.log-item {
    display: flex;
    gap: 16px;
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    transition: background 0.2s;
}
.log-item:hover {
    background: var(--bg-color);
}
.log-item:last-child {
    border-bottom: none;
}
.log-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}
.log-icon.user { background: rgba(59, 130, 246, 0.1); color: #3b82f6; }
.log-icon.admin { background: rgba(139, 92, 246, 0.1); color: #8b5cf6; }
.log-icon.system { background: rgba(245, 158, 11, 0.1); color: #f59e0b; }
.log-content {
    flex: 1;
    min-width: 0;
}
.log-action {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 4px;
}
.log-detail {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 4px;
    word-break: break-all;
}
.log-meta {
    font-size: 12px;
    color: #94a3b8;
    display: flex;
    gap: 16px;
}

/* ========== 歌单卡片 ========== */
.playlist-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.playlist-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s;
    cursor: pointer;
}
.playlist-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
}
.playlist-cover {
    width: 100%;
    height: 160px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-lighter));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    color: white;
}
.playlist-info {
    padding: 16px;
}
.playlist-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.playlist-platform {
    font-size: 12px;
    color: var(--text-secondary);
}

/* ========== 模态框 ========== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}
.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}
.modal {
    background: var(--bg-white);
    border-radius: 20px;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(20px);
    transition: all 0.3s;
}
.modal-overlay.show .modal {
    transform: scale(1) translateY(0);
}
.modal-header {
    padding: 24px 24px 16px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.modal-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-color);
}
.modal-close {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: none;
    background: var(--bg-color);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}
.modal-close:hover {
    background: var(--border-color);
    color: var(--text-color);
}
.modal-body {
    padding: 24px;
}
.modal-footer {
    padding: 16px 24px 24px;
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

/* ========== 响应式补充 ========== */
@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .playlist-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    .playlist-grid {
        grid-template-columns: 1fr;
    }
    .batch-actions {
        flex-wrap: wrap;
    }
    .log-meta {
        flex-direction: column;
        gap: 4px;
    }
}

/* ========== 侧边栏布局 ========== */
.app-layout {
    display: flex;
    min-height: 100vh;
    background: linear-gradient(135deg, #fff5e6 0%, #ffe4b5 50%, #ffd89b 100%);
}

/* 侧边栏 */
.app-sidebar {
    width: 260px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-right: 1px solid rgba(255, 140, 0, 0.1);
    padding: 24px 0;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease;
}

.sidebar-logo {
    padding: 0 24px 24px;
    border-bottom: 1px solid rgba(255, 140, 0, 0.1);
    margin-bottom: 16px;
}

.sidebar-logo a {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: #1e293b;
}

.sidebar-logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #FF8C00, #FFD700);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    box-shadow: 0 4px 12px rgba(255, 140, 0, 0.3);
}

.sidebar-logo-text {
    font-size: 18px;
    font-weight: 700;
    background: linear-gradient(135deg, #FF8C00, #FFD700);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-nav {
    flex: 1;
    padding: 0 12px;
    overflow-y: auto;
}

.nav-section {
    margin-bottom: 24px;
}

.nav-section-title {
    font-size: 12px;
    font-weight: 600;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0 12px;
    margin-bottom: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 12px;
    color: #64748b;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 4px;
    transition: all 0.2s ease;
    cursor: pointer;
}

.nav-item:hover {
    background: rgba(255, 140, 0, 0.08);
    color: #FF8C00;
    transform: translateX(4px);
}

.nav-item.active {
    background: linear-gradient(135deg, rgba(255, 140, 0, 0.15), rgba(255, 215, 0, 0.15));
    color: #FF8C00;
    font-weight: 600;
}

.nav-item-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.sidebar-footer {
    padding: 16px 12px;
    border-top: 1px solid rgba(255, 140, 0, 0.1);
    margin-top: auto;
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: 12px;
    background: rgba(255, 140, 0, 0.05);
}

.sidebar-user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, #FF8C00, #FFD700);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 16px;
}

.sidebar-user-info {
    flex: 1;
    min-width: 0;
}

.sidebar-user-name {
    font-size: 14px;
    font-weight: 600;
    color: #1e293b;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-user-role {
    font-size: 12px;
    color: #94a3b8;
}

/* 主内容区 */
.app-main {
    flex: 1;
    margin-left: 260px;
    padding: 24px;
    min-height: 100vh;
}

.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.app-title {
    font-size: 24px;
    font-weight: 700;
    color: #1e293b;
    margin: 0;
}

.app-title span {
    background: linear-gradient(135deg, #FF8C00, #FFD700);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 140, 0, 0.1);
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 20px;
    color: #FF8C00;
}

/* 移动端遮罩 */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.sidebar-overlay.show {
    display: block;
    opacity: 1;
}

/* 响应式 */
@media (max-width: 768px) {
    .app-sidebar {
        transform: translateX(-100%);
    }
    
    .app-sidebar.show {
        transform: translateX(0);
    }
    
    .app-main {
        margin-left: 0;
        padding: 16px;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .app-title {
        font-size: 20px;
    }
}

/* 卡片样式增强 */
.glass-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: 0 8px 32px rgba(255, 140, 0, 0.1);
    padding: 24px;
    margin-bottom: 24px;
}

.glass-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(255, 140, 0, 0.1);
}

.glass-card-title {
    font-size: 18px;
    font-weight: 600;
    color: #1e293b;
    margin: 0;
}

/* 统计卡片 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: 0 4px 16px rgba(255, 140, 0, 0.08);
    padding: 20px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(255, 140, 0, 0.15);
}

.stat-card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 12px;
}

.stat-card-icon.primary {
    background: linear-gradient(135deg, rgba(255, 140, 0, 0.2), rgba(255, 215, 0, 0.2));
    color: #FF8C00;
}

.stat-card-icon.success {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.2), rgba(74, 222, 128, 0.2));
    color: #22c55e;
}

.stat-card-icon.info {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(96, 165, 250, 0.2));
    color: #3b82f6;
}

.stat-card-icon.warning {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(251, 191, 36, 0.2));
    color: #f59e0b;
}

.stat-card-value {
    font-size: 28px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 4px;
}

.stat-card-label {
    font-size: 14px;
    color: #64748b;
}


/* ========== 管理员后台侧边栏液态玻璃样式优化 ========== */
.sidebar {
    background: rgba(255, 255, 255, 0.75) !important;
    backdrop-filter: blur(20px) !important;
    -webkit-backdrop-filter: blur(20px) !important;
    border-right: 1px solid rgba(255, 255, 255, 0.3) !important;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.05) !important;
}

.sidebar-logo {
    background: linear-gradient(135deg, #FF8C00, #FFD700) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
    background-clip: text !important;
}

.sidebar-menu-link {
    transition: all 0.3s ease !important;
    border-radius: 12px !important;
    margin: 4px 12px !important;
    padding: 10px 16px !important;
}

.sidebar-menu-link:hover {
    background: rgba(255, 140, 0, 0.1) !important;
    transform: translateX(4px) !important;
}

.sidebar-menu-link.active {
    background: linear-gradient(135deg, rgba(255, 140, 0, 0.15), rgba(255, 215, 0, 0.15)) !important;
    color: #FF8C00 !important;
    font-weight: 600 !important;
    box-shadow: 0 2px 10px rgba(255, 140, 0, 0.1) !important;
}

.sidebar-section {
    color: #94a3b8 !important;
    font-size: 12px !important;
    font-weight: 600 !important;
    text-transform: uppercase !important;
    letter-spacing: 0.5px !important;
    padding: 16px 24px 8px !important;
}

/* 管理员内容区优化 */
.main-content {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%) !important;
    min-height: 100vh !important;
}

/* 管理员卡片液态玻璃效果 */
.stats-card, .card {
    background: rgba(255, 255, 255, 0.8) !important;
    backdrop-filter: blur(10px) !important;
    -webkit-backdrop-filter: blur(10px) !important;
    border: 1px solid rgba(255, 255, 255, 0.5) !important;
    border-radius: 16px !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05) !important;
    transition: all 0.3s ease !important;
}

.stats-card:hover, .card:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08) !important;
}


/* ========== 用户中心页面侧边栏适配 ========== */
/* 当使用新侧边栏布局时，隐藏旧导航栏 */
.app-layout .navbar {
    display: none !important;
}

.app-layout .main-content {
    padding-top: 0 !important;
    background: transparent !important;
}

.app-layout .container {
    max-width: 100% !important;
    padding: 0 !important;
}

.app-layout .page-header {
    display: none !important;
}

/* 确保新布局中的内容卡片正常显示 */
.app-main .card,
.app-main .stats-card,
.app-main .form-group,
.app-main .alert {
    margin-bottom: 16px;
}