:root {
            --primary: #5e72e4;
            --primary-light: #7e8ee3;
            --secondary: #6c757d;
            --light: #f8f9fa;
            --lighter: #f1f5f9;
            --dark: #212529;
            --success: #2dce89;
            --warning: #fb6340;
            --danger: #f5365c;
            --card-bg: rgba(255, 255, 255, 0.85);
            --radius: 12px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
        }
        
        body {
            background: linear-gradient(135deg, #e0f7fa 0%, #f3e5f5 100%);
            color: var(--dark);
            line-height: 1.6;
            min-height: 100vh;
            margin: 0;
            padding: 0;
        }
        
        .container {
            width: 100vw;
            height: 100vh;
            display: grid;
            grid-template-columns: var(--sidebar-width, 280px) 1fr;
            grid-template-rows: auto 1fr;
            gap: 0;
            position: relative;
            transition: grid-template-columns 0.3s ease;
        }
        
        .container.sidebar-collapsed {
            --sidebar-width: 0px;
        }
        
        header {
            grid-column: 1 / -1;
            background: var(--card-bg);
            padding: 20px 30px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        
        .logo i {
            font-size: 2.5rem;
            color: var(--primary);
            cursor: pointer;
        }
        
        .logo h1 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--dark);
            background: linear-gradient(to right, var(--primary), var(--warning));
            background-clip: text;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        
        .search-box {
            flex: 1;
            max-width: 500px;
            position: relative;
        }
        
        .search-box input {
            width: 100%;
            padding: 14px 90px 14px 50px;
            border-radius: 50px;
            border: 2px solid #e2e8f0;
            font-size: 1rem;
            transition: var(--transition);
            background: var(--lighter);
        }
        
        .search-box input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(94, 114, 228, 0.2);
        }
        
        .search-box i {
            position: absolute;
            left: 20px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--secondary);
        }
        
        .search-box .search-btn {
            position: absolute;
            right: 8px;
            top: 50%;
            transform: translateY(-50%);
            padding: 8px 12px;
            border-radius: 20px;
            border: none;
            background: var(--primary);
            color: #fff;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .search-box .search-btn:hover {
            background: var(--primary-light);
        }
        
        .sidebar {
            background: var(--card-bg);
            border-radius: 0;
            box-shadow: none;
            padding: 0;
            height: 100%;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-right: 1px solid #e2e8f0;
            transition: all 0.3s ease;
            position: relative;
        }
        
        .sidebar-content {
            padding: 20px;
            overflow-y: auto;
            flex: 1;
        }
        
        .sidebar.collapsed {
            width: 0;
            min-width: 0;
            padding: 0;
            border-right: none;
        }
        
        .sidebar.collapsed .sidebar-content {
            display: none;
        }
        
        .content {
            /* 模块化全宽全高设计 */
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, #e0f7fa 0%, #f3e5f5 100%);
            overflow-y: auto;
            overflow-x: hidden;
            /* 宽度自适应sidebar的收缩与伸展 */
            transition: width 0.3s ease;
            display: flex;
            flex-direction: column;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }

        /* 统一的侧边栏切换按钮 */
        .sidebar-toggle {
            position: absolute;
            top: 20px;
            right: 15px;
            z-index: 1001;
            background: var(--primary);
            color: white;
            width: 36px;
            height: 36px;
            border-radius: 6px;
            border: none;
            cursor: pointer;
            box-shadow: var(--shadow);
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
        }

        .sidebar-toggle:hover {
            background: var(--primary-light);
            transform: scale(1.05);
        }
        
        /* 当侧边栏收缩时，按钮变为悬浮状态 */
        .sidebar.collapsed + .content .sidebar-toggle,
        .container.sidebar-collapsed .sidebar-toggle-floating {
            position: fixed;
            top: 20px;
            left: 20px;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            font-size: 1.2rem;
            z-index: 1002;
        }

        /* 移动端遮罩层 */
        .mobile-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .mobile-overlay.show {
            opacity: 1;
        }
        
        .section-title {
            font-size: 1.4rem;
            font-weight: 600;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--dark);
            padding-bottom: 15px;
            border-bottom: 2px solid var(--lighter);
        }
        
        .section-title i {
            color: var(--primary);
        }
        
        .category-list {
            list-style: none;
            flex: 1;
        }
        
        .category-item {
            margin-bottom: 8px;
        }
        
        .category-header {
            background: var(--lighter);
            padding: 14px 15px;
            border-radius: var(--radius);
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }
        
        .category-header:hover {
            background: #dbeafe;
        }
        
        .category-header.active {
            background: var(--primary);
            color: white;
        }
        
        .device-list {
            list-style: none;
            padding: 10px 0 10px 0;
            display: none;
        }
        
        .device-list.show {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
            gap: 8px;
        }
        
        .device-item {
            padding: 10px;
            border-radius: var(--radius);
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: var(--lighter);
            font-size: 0.9rem;
        }
        
        .device-item:hover {
            background: #dbeafe;
        }
        
        .device-item.active {
            background: var(--primary);
            color: white;
        }
        
        .device-item i {
            font-size: 0.9rem;
            margin-right: 5px;
        }
        
        /* Content模块基础样式 */
        .content-module {
            width: 100%;
            flex-shrink: 0;
        }
        
        /* 设备信息模块 */
        .device-info-module {
            background: white;
            padding: 20px 30px;
            border-bottom: 1px solid #e2e8f0;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }
        
        /* 广告模块 */
        .ad-module {
            background: white;
            border-bottom: 1px solid #e2e8f0;
        }
        
        /* 选项卡模块（吸顶效果） */
        .tabs-module {
            position: sticky;
            top: 0;
            z-index: 98;
            background: white;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid #e2e8f0;
        }
        
        /* 主内容模块 */
        .main-content-module {
            flex: 1;
            background: transparent;
            padding: 30px;
        }
        
        .device-title {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--dark);
        }

        .device-subtitle {
            color: var(--secondary);
            font-size: 0.9rem;
            margin-bottom: 12px;
        }
        
        
        .download-prefix-selector {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-top: 8px;
            flex-wrap: wrap;
        }
 
        .download-prefix-selector label {
            font-size: 0.85rem;
            color: var(--secondary);
            font-weight: 500;
            white-space: nowrap;
        }
 
        .download-prefix-selector select {
            padding: 4px 8px;
            border: 1px solid #e2e8f0;
            border-radius: 4px;
            font-size: 0.85rem;
            background: white;
            color: var(--dark);
            cursor: pointer;
            min-width: 120px;
        }
        
        
        .ad-container {
            background: var(--lighter);
            padding: 20px;
            margin: 0;
            text-align: center;
        }
        
        .ad-content {
            min-height: 200px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: white;
            border-radius: var(--radius);
            padding: 20px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
        }
        
         .branch-tabs {
             display: flex;
             gap: 8px;
             padding: 15px 30px;
             /* 左右滑动，一行显示 */
             overflow-x: auto;
             overflow-y: hidden;
             scrollbar-width: none; /* Firefox */
             -ms-overflow-style: none; /* IE and Edge */
             scroll-behavior: smooth;
             background: transparent;
             /* 确保一行显示 */
             white-space: nowrap;
             width: 100%;
             box-sizing: border-box;
         }
        
        .branch-tabs::-webkit-scrollbar {
            display: none; /* Chrome, Safari, Opera */
        }
        
        .branch-tab {
            padding: 10px 20px;
            background: var(--lighter);
            border: none;
            border-radius: var(--radius);
            cursor: pointer;
            font-weight: 500;
            transition: var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }
        
        .branch-tab.active {
            background: var(--primary);
            color: white;
        }
        
        .branch-content {
            display: none;
        }
        
        .branch-content.active {
            display: block;
            /* 防止高度跳跃，确保最小高度 */
            min-height: 600px;
        }
        
        .rom-table-container {
            margin-bottom: 20px;
            /* 防止内容更新时的高度跳跃 */
            transition: opacity 0.15s ease;
        }
        
        .rom-table {
            width: 100%;
            border-collapse: collapse;
            background: white;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            table-layout: fixed;
        }
        
        .rom-table th {
            background: var(--primary-light);
            color: white;
            padding: 15px;
            text-align: center;
        }
        
        .rom-table td {
            padding: 15px;
            border-bottom: 1px solid var(--lighter);
            overflow: hidden;
            text-overflow: ellipsis;
        }
        
        .rom-table tr:last-child td {
            border-bottom: none;
        }
        
        .rom-table tr:hover {
            background: #f5f7ff;
        }
        
        .rom-table .version-cell {
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            text-align: center;
        }
        
        .rom-table .name-cell {
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        
        .rom-table .download-cell {
            white-space: nowrap;
            overflow: visible;
            text-overflow: clip;
            width: 100px;
            text-align: center;
        }
        
                 .rom-table .download-cell .btn {
             padding: 6px 12px;
             font-size: 0.85rem;
             border-radius: 6px;
             min-width: 80px;
         }
         
         .btn-success {
             background: var(--success);
             color: white;
         }
         
         .btn-success:hover {
             background: #24a2b4;
         }
         
         .btn-warning {
             background: var(--warning);
             color: white;
         }
         
         .btn-warning:hover {
             background: #fa5722;
         }
         
         .btn-secondary {
             background: #9ca3af;
             color: white;
         }
        
        .pagination {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 20px;
            padding: 15px;
            background: white;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        
        .pagination-info {
            color: var(--secondary);
            font-size: 0.9rem;
        }
        
        .pagination-controls {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .pagination-controls button {
            padding: 8px 12px;
            border: 1px solid #e2e8f0;
            background: white;
            color: var(--dark);
            border-radius: 6px;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .pagination-controls button:hover:not(:disabled) {
            background: var(--primary);
            color: white;
            border-color: var(--primary);
        }
        
        .pagination-controls button:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }
        
        .pagination-controls .current-page {
            background: var(--primary);
            color: white;
            border-color: var(--primary);
        }
        
        .rom-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 20px;
            /* 防止内容更新时的高度跳跃 */
            transition: opacity 0.15s ease;
        }
        
        .rom-card {
            background: white;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        
        .rom-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        
        .rom-header {
            padding: 20px;
            display: flex;
            align-items: center;
            gap: 15px;
            border-bottom: 1px solid var(--lighter);
        }
        
        .rom-icon {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            background: var(--primary-light);
            color: white;
        }
        
        .rom-info {
            flex: 1;
        }
        
        .rom-name {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 5px;
        }
        
        .rom-version {
            color: var(--secondary);
            font-size: 0.9rem;
        }
        
        .rom-details {
            padding: 20px;
            flex: 1;
        }
        
        .detail-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px solid var(--lighter);
            gap: 10px;
        }
        
        .detail-label {
            font-weight: 600;
            color: var(--secondary);
            white-space: nowrap;
            flex-shrink: 0;
        }
        
        .detail-value {
            text-align: right;
            word-break: break-all;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 60%;
        }
        
        .rom-actions {
            padding: 15px 20px;
            display: flex;
            gap: 10px;
            background: #f8fafc;
        }
        
        .btn {
            padding: 10px 15px;
            border-radius: var(--radius);
            font-weight: 500;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: var(--transition);
            border: none;
            font-size: 0.9rem;
            white-space: nowrap;
        }
        
        .btn-primary {
            background: var(--primary);
            color: white;
            flex: 1;
        }
        
        .btn-primary:hover {
            background: var(--primary-light);
        }
        
        .no-data {
            text-align: center;
            padding: 50px 20px;
            color: var(--secondary);
            font-size: 1.2rem;
        }
        
        .no-data i {
            font-size: 3rem;
            margin-bottom: 20px;
            color: #ced4da;
        }
        
        /* 楼梯导航按钮 */
        .jump-to-devices {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: var(--primary);
            color: white;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            cursor: pointer;
            box-shadow: var(--shadow);
            z-index: 1000;
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.3s ease;
        }
        
                 .jump-to-devices.show {
             opacity: 1;
             transform: translateY(0);
         }
         
         /* 加载进度条样式 */
         .loading-overlay {
             position: absolute;
             top: 0;
             left: 0;
             right: 0;
             bottom: 0;
             background: rgba(255, 255, 255, 0.9);
             display: flex;
             flex-direction: column;
             align-items: center;
             justify-content: center;
             z-index: 100;
         }
         
         .loading-spinner {
             width: 40px;
             height: 40px;
             border: 4px solid #e2e8f0;
             border-top: 4px solid var(--primary);
             border-radius: 50%;
             animation: spin 1s linear infinite;
             margin-bottom: 15px;
         }
         
         @keyframes spin {
             0% { transform: rotate(0deg); }
             100% { transform: rotate(360deg); }
         }
         
         .loading-text {
             color: var(--secondary);
             font-size: 0.9rem;
             margin-bottom: 10px;
         }
         
         .progress-container {
             width: 200px;
             height: 6px;
             background: #e2e8f0;
             border-radius: 3px;
             overflow: hidden;
             margin: 0 auto;
         }
         
         .progress-bar {
             height: 100%;
             background: linear-gradient(90deg, var(--primary), var(--primary-light));
             border-radius: 3px;
             transition: width 0.3s ease;
             width: 0%;
         }
         
         .content-body {
             position: relative;
         }
         
         .device-loading {
             text-align: center;
             padding: 40px 20px;
             color: var(--secondary);
         }
         
         .device-loading .loading-spinner {
             margin: 0 auto 20px;
         }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .container {
                grid-template-columns: var(--sidebar-width, 280px) 1fr;
            }
            .content { grid-column: 1 / -1; }
            
            .rom-grid {
                grid-template-columns: 1fr;
            }
            
            .rom-table {
                display: none;
            }
            
            .rom-grid {
                display: grid;
            }
            
            .device-list {
                grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
            }
            
            /* 小屏幕默认收缩侧边栏 */
            .container {
                --sidebar-width: 0px;
            }
            
            .sidebar {
                position: fixed;
                top: 0;
                left: 0;
                width: 280px;
                height: 100vh;
                z-index: 1000;
                transform: translateX(-100%);
                box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
            }
            
            .sidebar.show {
                transform: translateX(0);
            }
        }
        
        @media (min-width: 993px) {
            .rom-grid {
                display: none;
            }
            
            .rom-table {
                display: table;
            }
            
            .jump-to-devices {
                display: none;
            }
        }
        
        @media (max-width: 768px) {
            header {
                flex-direction: column;
                align-items: stretch;
                padding: 15px 20px;
            }
            
            .search-box {
                max-width: 100%;
            }
            
            .content-header {
                padding: 12px 15px;
            }
            
            .device-title {
                font-size: 1.3rem;
                gap: 8px;
            }
            
            .device-subtitle {
                font-size: 0.8rem;
                margin-bottom: 8px;
            }
            
            .download-prefix-selector {
                gap: 6px;
                margin-top: 6px;
            }
            
            .download-prefix-selector label {
                font-size: 0.8rem;
            }
            
            .download-prefix-selector select {
                font-size: 0.8rem;
                padding: 3px 6px;
                min-width: 100px;
            }
            
            .branch-tabs {
                padding: 15px 15px;
            }
            
            .device-info-module {
                padding: 15px 20px;
            }
            
            .main-content-module {
                padding: 20px 15px;
            }
            
            /* 移动端detail-value优化 */
            .detail-value {
                max-width: 50%;
                font-size: 0.8rem;
                line-height: 1.2;
            }
            
            .detail-item {
                padding: 8px 0;
                gap: 8px;
            }
            
            .detail-label {
                font-size: 0.8rem;
            }
            
            .pagination {
                flex-direction: column;
                gap: 10px;
                align-items: center;
            }
            
            .pagination-info {
                order: 2;
                font-size: 0.8rem;
            }
            
            .pagination-controls {
                order: 1;
                flex-wrap: wrap;
                justify-content: center;
                gap: 5px;
            }
            
            .pagination-controls button {
                padding: 6px 8px;
                font-size: 0.8rem;
                min-width: 32px;
            }
            
            .device-list {
                grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
            }
            
            /* 移动端分类网格布局 */
            .category-grid {
                display: grid;
                grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
                gap: 10px;
            }
            
            .category-grid .category-header {
                grid-column: 1 / -1;
            }
            
            .category-grid .device-list {
                grid-column: 1 / -1;
                display: grid;
                grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
                gap: 8px;
            }
            
            .btn {
                padding: 8px 12px;
                font-size: 0.85rem;
            }
        }
        
        @media (max-width: 480px) {
            .device-list {
                grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
            }
            
            .device-item {
                padding: 8px;
                font-size: 0.8rem;
            }
            
            .btn {
                padding: 6px 10px;
                font-size: 0.8rem;
            }
            
            .pagination-controls button {
                padding: 4px 6px;
                font-size: 0.75rem;
                min-width: 28px;
            }
            
            .pagination-info {
                font-size: 0.75rem;
            }
            
            /* 超小屏幕detail-value进一步优化 */
            .detail-value {
                max-width: 45%;
                font-size: 0.75rem;
            }
            
            .detail-label {
                font-size: 0.75rem;
            }
            
            .detail-item {
                padding: 6px 0;
                gap: 6px;
            }
        }