* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }

        :root {
            --primary-color: #1890ff;
            --dark-bg: #001529;
            --light-bg: #f5f7fa;
            --text-dark: #333;
            --text-light: #fff;
            --border-color: #e8e8e8;
            --hover-color: #40a9ff;
            --shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
            --trial-color: #ff8c00;
            --trial-bg: linear-gradient(135deg, #fff3e6, #ffe0b3);
            --official-color: #096dd9;
            --official-bg: linear-gradient(135deg, #e6f7ff, #bae7ff);
            --icon-bg: #f0f2f5;
            --icon-hover: #e6f7ff;
        }

        body {
            background-color: var(--light-bg);
            color: var(--text-dark);
            overflow-x: hidden;
        }

        .container {
            display: flex;
            min-height: 100vh;
        }

        /* 左侧导航栏 - 双列布局 */
        .sidebar {
            width: 100px;
            background-color: var(--dark-bg);
            color: var(--text-light);
            transition: all 0.3s ease;
            position: relative;
            z-index: 100;
            display: flex;
            flex-direction: column;
            height: 100vh;
            position: fixed;
            left: 0;
            top: 0;
        }

        .sidebar.expanded {
            width: 240px; /* 100px + 140px */
        }

        .sidebar.collapsed-60 {
            width: 60px;
        }

        /* 顶部logo区域 */
        .logo {
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            flex-shrink: 0;
            position: relative;
            transition: all 0.3s ease;
            width: 100%;
            overflow: hidden;
        }

        .logo-content {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 100%;
            padding: 0 5px;
        }

        .logo i {
            font-size: 20px;
            min-width: 20px;
            text-align: center;
        }

        .logo h1 {
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            margin-left: 5px;
            transition: all 0.3s;
        }

        /* 折叠按钮 - 圆形背景，箭头居中 */
        .collapse-btn-top {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            background-color: rgba(255, 255, 255, 0.15);
            border: none;
            color: white;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
            z-index: 101;
        }

        .collapse-btn-top:hover {
            background-color: var(--primary-color);
            transform: translateY(-50%) scale(1.05);
        }

        /* 不同状态下的按钮位置 */
        .sidebar:not(.expanded):not(.collapsed-60) .collapse-btn-top,
        .sidebar.normal .collapse-btn-top {
            right: -15px; /* 100px外边 */
        }

        .sidebar.expanded .collapse-btn-top {
            right: -15px; /* 240px外边 */
        }

        .sidebar.collapsed-60 .collapse-btn-top {
            right: -15px; /* 60px外边 */
        }

        /* 导航容器 - 双列布局 */
        .nav-container {
            display: flex;
            flex: 1;
            overflow: hidden;
            width: 100%;
        }

        /* 一级菜单 - 左侧列 */
        .primary-nav {
            width: 100px;
            background-color: var(--dark-bg);
            border-right: 1px solid rgba(255, 255, 255, 0.1);
            overflow-y: auto;
            overflow-x: hidden;
            flex-shrink: 0;
            transition: all 0.3s ease;
        }

        .sidebar.collapsed-60 .primary-nav {
            width: 60px;
        }

        .primary-menu {
            list-style: none;
        }

        .primary-item {
            position: relative;
        }

        .primary-item > a {
            display: flex;
            align-items: center;
            padding: 0 10px;
            color: rgba(255, 255, 255, 0.85);
            text-decoration: none;
            transition: all 0.2s;
            cursor: pointer;
            height: 50px;
            border-left: 3px solid transparent;
            /* 禁止拖拽 */
            -webkit-user-drag: none;
            user-drag: none;
            -khtml-user-drag: none;
            -moz-user-drag: none;
            -o-user-drag: none;
        }

        .primary-item > a:hover {
            background-color: rgba(255, 255, 255, 0.08);
            color: var(--text-light);
        }

        .primary-item.active > a {
            background-color: var(--primary-color);
            color: var(--text-light);
            border-left-color: #fff;
        }

        /* 一级菜单图标 - 放大文字 */
        .primary-icon {
            font-size: 16px; /* 放大图标 */
            min-width: 20px;
            text-align: center;
            transition: all 0.3s;
        }

        .primary-text {
            font-size: 14px; /* 放大文字 */
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            margin-left: 10px;
            transition: all 0.3s;
        }

        .sidebar.collapsed-60 .primary-text {
            display: none;
        }

        /* 二级菜单 - 右侧列 - 放大文字 */
        .secondary-nav {
            width: 140px;
            background-color: white;
            overflow-y: auto;
            overflow-x: hidden;
            transition: all 0.3s ease;
            flex-shrink: 0;
            box-shadow: 2px 0 8px rgba(0, 0, 0, 0.1);
        }

        .sidebar:not(.expanded) .secondary-nav {
            width: 0;
            opacity: 0;
            overflow: hidden;
        }

        .secondary-menu {
            list-style: none;
            padding: 10px 0;
        }

        .secondary-item a {
            display: block;
            padding: 12px 15px; /* 增加内边距 */
            color: #555;
            text-decoration: none;
            font-size: 14px; /* 放大文字 */
            transition: all 0.2s;
            border-left: 3px solid transparent;
            /* 禁止拖拽 */
            -webkit-user-drag: none;
            user-drag: none;
            -khtml-user-drag: none;
            -moz-user-drag: none;
            -o-user-drag: none;
        }

        .secondary-item a:hover {
            color: var(--primary-color);
            background-color: rgba(24, 144, 255, 0.08);
            border-left-color: var(--primary-color);
        }

        .secondary-item.active a {
            color: var(--primary-color);
            background-color: rgba(24, 144, 255, 0.1);
            border-left-color: var(--primary-color);
            font-weight: 500;
        }

        /* 版本显示 - 左侧底部浮动 */
        .version-display {
            position: absolute;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--trial-bg);
            color: var(--trial-color);
            padding: 5px 10px;
            border-radius: 5px;
            font-size: 12px;
            font-weight: bold;
            text-align: center;
            min-width: 60px;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);

            transition: all 0.3s ease;
            z-index: 99;
        }

        .version-display.official {
            background: var(--official-bg);
            color: var(--official-color);
        }

        .sidebar.collapsed-60 .version-display {
            left: 50%;
            transform: translateX(-50%);
            min-width: 30px;
            padding: 5px 3px;
            font-size: 10px;
        }

        /* 右侧内容区 */
        .main-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            transition: all 0.3s;
            margin-left: 100px;
        }

        .sidebar.expanded ~ .main-content {
            margin-left: 240px;
        }

        .sidebar.collapsed-60 ~ .main-content {
            margin-left: 60px;
        }

        /* 顶部导航栏 */
        .header {
            height: 64px;
            background-color: white;
            box-shadow: var(--shadow);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 24px;
            position: sticky;
            top: 0;
            z-index: 99;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            font-size: 14px;
            color: #666;
        }

        .breadcrumb span {
            margin: 0 5px;
        }

        .breadcrumb .current {
            color: var(--text-dark);
            font-weight: 500;
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .search-box {
            position: relative;
        }

        .search-box input {
            padding: 8px 12px 8px 36px;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            outline: none;
            width: 200px;
            transition: width 0.3s;
        }

        .search-box input:focus {
            width: 240px;
            border-color: var(--primary-color);
        }

        .search-box i {
            position: absolute;
            left: 12px;
            top: 50%;
            transform: translateY(-50%);
            color: #999;
        }

        /* 圆形背景图标 */
        .icon-circle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: var(--icon-bg);
            color: #666;
            font-size: 16px;
            transition: all 0.3s ease;
            text-decoration: none;
        }

        .icon-circle:hover {
            background-color: var(--icon-hover);
            color: var(--primary-color);
            transform: scale(1.05);
        }

        .header-icon {
            position: relative;
            cursor: pointer;
			text-decoration: none;
            /* 禁止拖拽 */
            -webkit-user-drag: none;
            user-drag: none;
            -khtml-user-drag: none;
            -moz-user-drag: none;
            -o-user-drag: none;
        }

        .badge {
            position: absolute;
            top: -5px;
            right: -5px;
            background-color: #f5222d;
            color: white;
            font-size: 10px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .user-info {
            display: flex;
            align-items: center;
            cursor: pointer;
            position: relative;
            padding: 8px 12px;
            border-radius: 4px;
            transition: all 0.3s;
            /* 禁止拖拽 */
            -webkit-user-drag: none;
            user-drag: none;
            -khtml-user-drag: none;
            -moz-user-drag: none;
            -o-user-drag: none;
        }

        .user-info:hover {
            background-color: rgba(24, 144, 255, 0.1);
        }

        .user-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            object-fit: cover;
            margin-right: 10px;
            /* 禁止拖拽 */
            -webkit-user-drag: none;
            user-drag: none;
            -khtml-user-drag: none;
            -moz-user-drag: none;
            -o-user-drag: none;
        }

        .user-name {
            font-size: 14px;
            font-weight: 500;
            margin-right: 5px;
            /* 禁止拖拽 */
            -webkit-user-drag: none;
            user-drag: none;
            -khtml-user-drag: none;
            -moz-user-drag: none;
            -o-user-drag: none;
        }

        .user-arrow {
            font-size: 12px;
            color: #666;
            transition: transform 0.3s;
            /* 禁止拖拽 */
            -webkit-user-drag: none;
            user-drag: none;
            -khtml-user-drag: none;
            -moz-user-drag: none;
            -o-user-drag: none;
        }

        .user-info:hover .user-arrow {
            transform: rotate(180deg);
        }

        .user-dropdown {
            position: absolute;
            top: 100%;
            right: 0;
            background-color: white;
            box-shadow: var(--shadow);
            border-radius: 4px;
            width: 200px;
            padding: 10px 0;
            display: none;
            z-index: 1000;
            opacity: 0;
            transform: translateY(10px);
            transition: all 0.3s ease;
        }

        .user-info:hover .user-dropdown {
            display: block;
            opacity: 1;
            transform: translateY(0);
        }

        .user-dropdown p {
            padding: 10px 20px;
            font-size: 14px;
            color: #666;
            border-bottom: 1px solid var(--border-color);
            /* 禁止拖拽 */
            -webkit-user-drag: none;
            user-drag: none;
            -khtml-user-drag: none;
            -moz-user-drag: none;
            -o-user-drag: none;
        }

        .user-dropdown a {
            display: block;
            padding: 12px 20px;
            color: var(--text-dark);
            text-decoration: none;
            font-size: 14px;
            transition: all 0.2s;
            /* 禁止拖拽 */
            -webkit-user-drag: none;
            user-drag: none;
            -khtml-user-drag: none;
            -moz-user-drag: none;
            -o-user-drag: none;
        }

        .user-dropdown a:hover {
            background-color: rgba(24, 144, 255, 0.1);
            color: var(--primary-color);
        }

        .user-dropdown a i {
            margin-right: 8px;
            width: 16px;
            text-align: center;
        }

        /* 内容区域 */
        .content {
            flex: 1;
            padding: 10px;
            overflow-y: auto;
            display: flex;
            flex-direction: column;
        }

        .card {
            background-color: white;
            border-radius: 8px;
            box-shadow: var(--shadow);
            padding: 0;
            margin-bottom: 0;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card h3 {
            font-size: 16px;
            margin-bottom: 0;
            color: var(--text-dark);
            padding: 15px 20px;
            border-bottom: 1px solid var(--border-color);
        }

        .iframe-container {
            width: 100%;
            height: 100%;
            border: none;
            border-radius: 0 0 8px 8px;
            overflow: hidden;
            flex: 1;
        }

        iframe {
            width: 100%;
            height: 100%;
            border: none;
        }

        /* 移动端适配 */
        @media (max-width: 992px) {
            .sidebar {
                position: fixed;
                left: 0;
                top: 0;
                height: 100vh;
                z-index: 1000;
                transform: translateX(-100%);
                width: 240px !important;
            }

            .sidebar.mobile-show {
                transform: translateX(0);
            }

            .sidebar.expanded {
                width: 240px !important;
            }

            .sidebar.collapsed-60 {
                width: 60px !important;
            }

            .main-content {
                margin-left: 0 !important;
            }

            .mobile-toggle {
                display: block;
                position: fixed;
                top: 15px;
                left: 15px;
                background-color: var(--primary-color);
                color: white;
                width: 40px;
                height: 40px;
                border-radius: 4px;
                display: flex;
                align-items: center;
                justify-content: center;
                z-index: 999;
                cursor: pointer;
                box-shadow: var(--shadow);
            }

            .header {
                padding-left: 70px;
            }
            
            /* 手机端隐藏搜索框和管理员名称 */
            .search-box {
                display: none;
            }
            
            .user-name {
                display: none;
            }
            
            .user-arrow {
                display: none;
            }
        }

        @media (min-width: 993px) {
            .mobile-toggle {
                display: none;
            }
        }

        /* 折叠状态下的样式 */
        .sidebar.collapsed-60 .logo h1 {
            display: none;
        }

        .sidebar.collapsed-60 .logo {
            justify-content: center;
            padding: 0;
        }

        .sidebar.collapsed-60 .logo i {
            margin-right: 0;
        }

        .sidebar.collapsed-60 .primary-item > a {
            justify-content: center;
            padding: 0;
        }

        .sidebar.collapsed-60 .primary-icon {
            margin-right: 0;
            font-size: 18px;
        }

        .sidebar.expanded .collapse-btn-top {
            transform: translateY(-50%) rotate(180deg); /* 箭头指向里面 */
        }

        .sidebar.normal .collapse-btn-top {
            transform: translateY(-50%) rotate(0deg); /* 箭头指向右边 */
        }

        .sidebar.collapsed-60 .collapse-btn-top {
            transform: translateY(-50%) rotate(0deg); /* 箭头指向右边 */
        }