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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #f5f6fa;
            min-height: 100vh;
        }

        body.admin-layout {
            display: flex;
        }

        /* 主内容 */
        .main-content {
            flex: 1;
            margin-left: 240px;
            padding: 24px 30px;
            min-height: 100vh;
        }

        .placeholder-panel {
            background: white;
            border-radius: 12px;
            padding: 60px 40px;
            text-align: center;
            box-shadow: 0 2px 8px rgba(0,0,0,0.04);
        }

        .placeholder-panel h3 {
            font-size: 18px;
            color: #333;
            margin-bottom: 8px;
        }

        .placeholder-panel p {
            color: #999;
            font-size: 14px;
        }

        /* 页面标题 */
        .page-header {
            margin-bottom: 25px;
        }

        .page-header h2 {
            font-size: 22px;
            color: #333;
            margin-bottom: 5px;
        }

        .page-header p {
            color: #999;
            font-size: 14px;
        }

        /* 统计卡片 */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-bottom: 30px;
        }

        .stat-card {
            background: white;
            border-radius: 12px;
            padding: 24px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.04);
        }

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

        .stat-card-icon {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
        }

        .stat-card-icon.purple { background: rgba(0, 183, 240, 0.1); }
        .stat-card-icon.green { background: rgba(34, 197, 94, 0.1); }
        .stat-card-icon.orange { background: rgba(249, 115, 22, 0.1); }
        .stat-card-icon.blue { background: rgba(59, 130, 246, 0.1); }

        .stat-card-value {
            font-size: 28px;
            font-weight: bold;
            color: #333;
        }

        .stat-card-label {
            font-size: 13px;
            color: #999;
            margin-top: 5px;
        }

        /* 内容区域 */
        .content-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 20px;
        }

        .panel {
            background: white;
            border-radius: 12px;
            padding: 24px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.04);
        }

        .panel-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
        }

        .panel-header h3 {
            font-size: 16px;
            color: #333;
        }

        .panel-header a {
            font-size: 13px;
            color: #ff6a1a;
            text-decoration: none;
        }

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

        .data-table th,
        .data-table td {
            padding: 12px 10px;
            text-align: left;
            border-bottom: 1px solid #f0f0f0;
            font-size: 13px;
        }

        .data-table th {
            color: #999;
            font-weight: 500;
        }

        .data-table td {
            color: #333;
        }

        .status-tag {
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
        }

        .status-tag.success {
            background: rgba(34, 197, 94, 0.1);
            color: #22c55e;
        }

        .status-tag.warning {
            background: rgba(249, 115, 22, 0.1);
            color: #f97316;
        }

        .status-tag.info {
            background: rgba(59, 130, 246, 0.1);
            color: #3b82f6;
        }

        /* 区块链信息 */
        .chain-info-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .chain-info-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid #f5f5f5;
        }

        .chain-info-item:last-child {
            border-bottom: none;
        }

        .chain-info-label {
            font-size: 13px;
            color: #999;
        }

        .chain-info-value {
            font-size: 13px;
            color: #333;
            font-weight: 500;
        }

        .chain-status {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .chain-status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #22c55e;
        }

        /* 快速操作 */
        .quick-actions {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin-top: 20px;
        }

        .action-btn {
            padding: 12px;
            border: 1px solid #e8e8e8;
            border-radius: 8px;
            background: white;
            cursor: pointer;
            text-align: center;
            font-size: 13px;
            color: #555;
            transition: all 0.3s;
        }

        .action-btn:hover {
            border-color: #ff6a1a;
            color: #ff6a1a;
            background: rgba(0, 183, 240, 0.05);
        }

        /* 共享节点 */
        .shared-nodes-section {
            margin-bottom: 20px;
        }

        .shared-nodes-title {
            font-size: 16px;
            color: #666;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
        }

        .shared-node-card {
            background: #f7f9fb;
            border-radius: 10px;
            padding: 18px 20px;
            margin-bottom: 12px;
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 16px;
            border-left: 4px solid #ff6a1a;
        }

        .shared-node-card.remote {
            border-left-color: #14b8a6;
        }

        .shared-node-card.local {
            border-left-color: #ff6a1a;
        }

        .shared-node-main {
            flex: 1;
            min-width: 0;
        }

        .shared-node-title {
            font-size: 16px;
            font-weight: 600;
            color: #333;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .shared-node-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 22px;
            font-size: 14px;
            color: #555;
            line-height: 1.7;
        }

        .shared-node-meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .shared-node-gpu-detail {
            margin-top: 10px;
            font-size: 14px;
            color: #444;
            line-height: 1.6;
        }

        .shared-node-status {
            padding: 5px 14px;
            border-radius: 6px;
            font-size: 14px;
            background: #ecfdf5;
            color: #10b981;
            font-weight: 600;
            flex-shrink: 0;
        }

        .shared-node-status.offline {
            background: #fef2f2;
            color: #ef4444;
        }

        .gpu-alert-dot {
            width: 6px;
            height: 6px;
            background: #ef4444;
            border-radius: 50%;
            display: inline-block;
            margin-left: 2px;
        }

        .shared-nodes-empty {
            text-align: center;
            color: #999;
            font-size: 15px;
            padding: 24px;
            background: #f7f9fb;
            border-radius: 8px;
        }

        /* 表单卡片 */
        .card {
            background: white;
            border-radius: 12px;
            padding: 24px;
            margin-bottom: 20px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.04);
        }

        .card h3 {
            font-size: 16px;
            color: #333;
            margin-bottom: 16px;
        }

        .form-row {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }

        .form-group {
            flex: 1;
            min-width: 200px;
            margin-bottom: 14px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            color: #666;
            margin-bottom: 6px;
        }

        .form-group input,
        .form-group select {
            width: 100%;
            padding: 9px 12px;
            border: 1px solid #e0e0e0;
            border-radius: 6px;
            font-size: 13px;
            box-sizing: border-box;
        }

        .btn-primary {
            padding: 8px 20px;
            background: #ff6a1a;
            color: #fff;
            border: none;
            border-radius: 8px;
            font-size: 13px;
            cursor: pointer;
            margin-right: 8px;
        }

        .btn-primary:hover { background: #e85d12; }

        .btn-outline {
            padding: 8px 20px;
            background: #fff;
            color: #ff6a1a;
            border: 1px solid #ff6a1a;
            border-radius: 8px;
            font-size: 13px;
            cursor: pointer;
        }

        .btn-outline:hover { background: #f3fbfe; }

        .result-box {
            display: none;
            margin-top: 16px;
            padding: 14px 16px;
            border-radius: 8px;
            font-size: 13px;
            line-height: 1.7;
            white-space: pre-wrap;
            word-break: break-all;
        }

        .result-box.show { display: block; }
        .result-box.success { background: #f0fdf4; border: 1px solid #bbf7d0; color: #166534; }
        .result-box.error { background: #fef2f2; border: 1px solid #fecaca; color: #991b1b; }

        .query-bar {
            display: flex;
            gap: 12px;
            align-items: flex-end;
            flex-wrap: wrap;
        }

        .query-bar .form-group { margin-bottom: 0; }

        /* 响应式 */
        @media (max-width: 1024px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .content-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 1023px) {
            .main-content {
                margin-left: 0;
                padding: 24px 16px;
            }
        }

        @media (max-width: 768px) {
            .stats-row {
                grid-template-columns: 1fr;
            }
        }