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

        :root {
            /* 鑹插僵绯荤粺 - 鏇寸幇浠ｇ殑鑹插僵鏂规 */
            --primary-color: #6366F1;
            --primary-hover: #4F46E5;
            --primary-light: #EEF2FF;
            --primary-dark: #4338CA;
            --bg-primary: #FFFFFF;
            --bg-secondary: #F8FAFC;
            --bg-tertiary: #F1F5F9;
            --text-primary: #1E293B;
            --text-secondary: #64748B;
            --text-tertiary: #94A3B8;
            --border-color: #E2E8F0;
            --border-hover: #CBD5E1;
            --success-color: #10B981;
            --warning-color: #F59E0B;
            --error-color: #EF4444;
            --sidebar-bg: #FFFFFF;
            --sidebar-border: #E2E8F0;
            
            /* 瀛椾綋绯荤粺 */
            --font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            --font-size-xs: 12px;
            --font-size-sm: 14px;
            --font-size-base: 16px;
            --font-size-lg: 18px;
            --font-size-xl: 20px;
            --font-size-2xl: 24px;
            --font-weight-normal: 400;
            --font-weight-medium: 500;
            --font-weight-semibold: 600;
            --font-weight-bold: 700;
            
            /* 闂磋窛绯荤粺 */
            --spacing-xs: 4px;
            --spacing-sm: 8px;
            --spacing-md: 16px;
            --spacing-lg: 24px;
            --spacing-xl: 32px;
            --spacing-2xl: 48px;
            
            /* 甯冨眬灏哄 */
            --sidebar-width: 260px;
            --sidebar-collapsed-width: 72px;
            --rightbar-width: 320px;
            --header-height: 64px;
            --transition-speed: 0.3s;
        }

        body {
            font-family: var(--font-family);
            font-size: var(--font-size-base);
            color: var(--text-primary);
            background: var(--bg-secondary);
            line-height: 1.6;
            overflow: hidden;
        }

        /* 涓诲竷灞€瀹瑰櫒 */
        .app-container {
            display: flex;
            height: 100vh;
            width: 100vw;
        }

        /* 宸︿晶瀵艰埅鏍?- 浼樺寲鐗?*/
        .sidebar {
            width: var(--sidebar-width);
            background: var(--sidebar-bg);
            border-right: 1px solid var(--sidebar-border);
            display: flex;
            flex-direction: column;
            flex-shrink: 0;
            transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 4px 0 20px rgba(99, 102, 241, 0.08);
            position: relative;
            z-index: 10;
            overflow: visible; /* 允许下拉菜单超出侧边栏区域 */
        }

        .sidebar.collapsed {
            width: var(--sidebar-collapsed-width);
        }

        .sidebar-header {
            height: var(--header-height);
            padding: var(--spacing-md);
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            transition: all var(--transition-speed) ease;
            position: relative;
        }

        .sidebar.collapsed .sidebar-header {
            justify-content: center;
            padding: var(--spacing-md);
        }

        .logo {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            overflow: hidden;
            transition: all var(--transition-speed) ease;
        }

        .sidebar.collapsed .logo {
            width: 32px;
            height: 32px;
        }

        /* Logo图片样式 - 无背景色 */
        .logo-image {
            width: 100%;
            height: 100%;
            object-fit: contain;
            display: block;
            background: transparent;
        }

        /* Logo首字母样式 - 有背景色和渐变 */
        .logo-letter {
            width: 100%;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: var(--font-weight-bold);
            font-size: var(--font-size-lg);
            color: white;
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
            box-shadow: 0 2px 8px rgba(99, 102, 241, 0.15);
        }

        .sidebar.collapsed .logo-letter {
            font-size: var(--font-size-base);
        }

        .logo-text {
            font-size: var(--font-size-lg);
            font-weight: var(--font-weight-semibold);
            color: var(--text-primary);
            white-space: nowrap;
            transition: all var(--transition-speed) ease;
            opacity: 1;
            transform: translateX(0);
        }

        .sidebar.collapsed .logo-text {
            display: none !important;
            opacity: 0;
            transform: translateX(-10px);
            width: 0;
            overflow: hidden;
            visibility: hidden;
        }

        .sidebar-nav {
            flex: 1;
            overflow-y: auto;
            overflow-x: hidden;
            padding: var(--spacing-md) 0;
            transition: all var(--transition-speed) ease;
        }

        .nav-section {
            margin-bottom: 0;
            transition: all var(--transition-speed) ease;
        }

        .sidebar.collapsed .nav-section {
            margin-bottom: 0;
        }

        .nav-section-title {
            padding: 0 var(--spacing-md) var(--spacing-sm);
            font-size: var(--font-size-xs);
            font-weight: var(--font-weight-semibold);
            color: var(--text-tertiary);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            transition: all var(--transition-speed) ease;
            opacity: 1;
            white-space: nowrap;
        }

        .sidebar.collapsed .nav-section-title {
            display: none !important;
            opacity: 0;
            height: 0;
            padding: 0;
            margin: 0;
            overflow: hidden;
            visibility: hidden;
        }

        .nav-item {
            display: flex;
            align-items: center;
            padding: 10px 16px;
            margin: 0 12px 4px;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            color: var(--text-secondary);
            text-decoration: none;
            font-size: var(--font-size-sm);
            font-weight: var(--font-weight-medium);
            gap: 12px;
            position: relative;
            overflow: hidden;
            border: 1px solid transparent;
        }

        .nav-item:hover {
            background: var(--bg-tertiary);
            color: var(--primary-color);
            border-color: var(--border-hover);
            transform: translateX(2px);
        }

        .nav-item.active {
            background: var(--primary-light);
            color: var(--primary-color);
            font-weight: var(--font-weight-semibold);
            border: 1px solid var(--primary-color);
            box-shadow: 0 2px 8px rgba(99, 102, 241, 0.1);
        }

        .nav-item.active:hover {
            background: var(--primary-light);
            border-color: var(--primary-hover);
            transform: translateX(2px);
            box-shadow: 0 4px 12px rgba(99, 102, 241, 0.15);
        }

        .nav-item.active::before {
            content: '';
            position: absolute;
            left: -1px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 40%;
            background: var(--primary-color);
            border-radius: 0 2px 2px 0;
            opacity: 0.8;
        }

        .nav-icon {
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: all var(--transition-speed) ease;
        }

        .sidebar.collapsed .nav-icon {
            width: 22px;
            height: 22px;
        }

        .nav-icon svg {
            width: 100%;
            height: 100%;
            stroke-width: 1.8;
        }

        .nav-icon img {
            width: 100%;
            height: 100%;
            object-fit: contain;
            display: block;
        }

        .nav-item.active .nav-icon svg {
            stroke: var(--primary-color);
        }

        .nav-text {
            white-space: nowrap;
            transition: all var(--transition-speed) ease;
            opacity: 1;
            transform: translateX(0);
            font-size: var(--font-size-sm);
        }

        .sidebar.collapsed .nav-text {
            display: none !important;
            opacity: 0;
            transform: translateX(-8px);
            width: 0;
            overflow: hidden;
            visibility: hidden;
        }

        /* 鎶樺彔鐘舵€佷笅鐨勫鑸」鏍峰紡 */
        .sidebar.collapsed .nav-item {
            padding: 10px;
            justify-content: center;
            margin: 0 8px 4px;
            position: relative;
        }

        .sidebar.collapsed .nav-item:hover {
            transform: scale(1.05);
            background: var(--bg-tertiary);
        }

        .sidebar.collapsed .nav-item.active {
            transform: scale(1.05);
            background: var(--primary-light);
            border-color: var(--primary-color);
        }

        .sidebar.collapsed .nav-item.active:hover {
            transform: scale(1.08);
            background: var(--primary-light);
            border-color: var(--primary-hover);
        }

        .sidebar.collapsed .nav-item.active::before {
            display: none;
        }

        /* 鎶樺彔鐘舵€佷笅鐨勫伐鍏锋彁绀?*/
        .sidebar.collapsed .nav-item::after {
            content: attr(data-tooltip);
            position: absolute;
            left: 100%;
            top: 50%;
            transform: translateY(-50%) translateX(10px);
            background: var(--text-primary);
            color: white;
            padding: 6px 12px;
            border-radius: 6px;
            font-size: var(--font-size-xs);
            font-weight: var(--font-weight-medium);
            white-space: nowrap;
            opacity: 0;
            pointer-events: none;
            transition: all 0.2s ease;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        }

        .sidebar.collapsed .nav-item:hover::after {
            opacity: 1;
            transform: translateY(-50%) translateX(8px);
        }

        .sidebar.collapsed .nav-item::before {
            content: '';
            position: absolute;
            left: 100%;
            top: 50%;
            transform: translateY(-50%) translateX(4px);
            border: 6px solid transparent;
            border-right-color: var(--text-primary);
            opacity: 0;
            pointer-events: none;
            transition: all 0.2s ease;
            z-index: 1001;
        }

        .sidebar.collapsed .nav-item:hover::before {
            opacity: 1;
            transform: translateY(-50%) translateX(2px);
        }

        .nav-badge {
            margin-left: auto;
            background: var(--primary-light);
            color: var(--primary-color);
            font-size: var(--font-size-xs);
            padding: 2px 8px;
            border-radius: 10px;
            font-weight: var(--font-weight-medium);
            transition: all var(--transition-speed) ease;
        }

        .sidebar.collapsed .nav-badge {
            opacity: 0;
            width: 0;
            padding: 0;
            overflow: hidden;
        }

        /* 宸ュ叿绫绘湇鍔″窘绔?*/
        .tool-badge {
            margin-left: auto;
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #818CF8 0%, #A5B4FC 100%);
            border-radius: 6px;
            color: white;
            font-size: 10px;
            font-weight: var(--font-weight-bold);
            transition: all var(--transition-speed) ease;
            box-shadow: 0 2px 6px rgba(129, 140, 248, 0.3);
            flex-shrink: 0;
        }

        .tool-badge svg {
            width: 12px;
            height: 12px;
            stroke-width: 2.5;
        }

        .nav-item:hover .tool-badge {
            transform: scale(1.1);
            box-shadow: 0 4px 10px rgba(129, 140, 248, 0.4);
        }

        .nav-item.active .tool-badge {
            background: linear-gradient(135deg, #A5B4FC 0%, #818CF8 100%);
            box-shadow: 0 2px 8px rgba(129, 140, 248, 0.4);
        }

        .sidebar.collapsed .tool-badge {
            opacity: 0;
            width: 0;
            padding: 0;
            overflow: hidden;
        }

        /* 涓棿涓绘搷浣滃尯 */
        .main-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            min-width: 0;
            overflow: hidden;
            transition: all var(--transition-speed) ease;
        }

        /* 绉婚櫎璐焟argin锛岃涓诲唴瀹瑰尯鍩熻嚜鐒舵墿灞?*/
        /* .sidebar.collapsed ~ .main-content {
            margin-left: calc(var(--sidebar-collapsed-width) - var(--sidebar-width));
        } */

        .main-header {
            height: var(--header-height);
            background: var(--bg-primary);
            border-bottom: 1px solid var(--border-color);
            padding: 0 var(--spacing-lg);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-shrink: 0;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
            position: relative;
            z-index: 1001;
        }

        .header-left {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            position: relative;
            z-index: 1002;
        }

        .menu-toggle-btn {
            width: 40px;
            height: 40px;
            border: none;
            background: var(--bg-primary);
            border-radius: 10px;
            cursor: pointer;
            display: flex !important;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: visible;
            z-index: 1001;
            flex-shrink: 0;
            visibility: visible !important;
            opacity: 1 !important;
            pointer-events: auto !important;
        }

        .menu-toggle-btn:hover {
            background: var(--primary-light);
            color: var(--primary-color);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(99, 102, 241, 0.1);
        }

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

        .menu-toggle-btn svg {
            width: 20px;
            height: 20px;
            stroke-width: 2;
            transition: all var(--transition-speed) ease;
        }

        .menu-toggle-btn .menu-icon {
            transition: all var(--transition-speed) ease;
        }

        /* 鍒锋柊鎸夐挳鏍峰紡 - 涓庢姌鍙犳寜閽繚鎸佷竴鑷?*/
        .refresh-btn {
            width: 40px;
            height: 40px;
            border: none;
            background: var(--bg-primary);
            border-radius: 10px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
            z-index: 1001;
            flex-shrink: 0;
        }

        .refresh-btn:hover {
            background: var(--primary-light);
            color: var(--primary-color);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(99, 102, 241, 0.1);
        }

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

        .refresh-btn:active svg {
            transform: rotate(360deg);
            transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .refresh-btn svg {
            width: 20px;
            height: 20px;
            stroke-width: 2;
            transition: transform 0.3s ease;
        }

        .refresh-btn:hover svg {
            transform: rotate(90deg);
        }

        /* 甯姪鎸夐挳鏍峰紡 - 闀挎柟褰?*/
        .help-btn {
            height: 40px;
            padding: 0 var(--spacing-md);
            border: none;
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
            border-radius: 10px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
            box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
            flex-shrink: 0;
            min-width: auto;
        }

        .help-btn:hover {
            background: linear-gradient(135deg, var(--primary-hover) 0%, var(--primary-dark) 100%);
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(99, 102, 241, 0.3);
        }

        .help-btn:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(99, 102, 241, 0.2);
        }

        .help-btn svg {
            width: 20px;
            height: 20px;
            stroke-width: 2;
        }

        .help-btn-text {
            margin-left: 8px;
            font-size: var(--font-size-sm);
            font-weight: var(--font-weight-medium);
            white-space: nowrap;
        }

        /* 纭繚鎸夐挳鍦ㄤ晶杈规爮鎶樺彔鏃跺缁堝彲瑙?*/
        .sidebar.collapsed ~ .main-content .menu-toggle-btn {
            display: flex !important;
            visibility: visible !important;
            opacity: 1 !important;
            pointer-events: auto !important;
            position: relative !important;
            z-index: 1001 !important;
        }

        .header-title {
            font-size: var(--font-size-xl);
            font-weight: var(--font-weight-semibold);
            color: var(--text-primary);
            opacity: 0;
            width: 0;
            overflow: hidden;
            transition: all var(--transition-speed) ease;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }

        .header-btn {
            padding: var(--spacing-sm) var(--spacing-md);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            background: var(--bg-primary);
            color: var(--text-secondary);
            font-size: var(--font-size-sm);
            font-weight: var(--font-weight-medium);
            cursor: pointer;
            transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            position: relative;
            overflow: hidden;
        }

        .header-btn:hover {
            border-color: var(--primary-color);
            color: var(--primary-color);
            background: var(--primary-light);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(99, 102, 241, 0.1);
        }

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

        .header-btn.primary {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
            color: white;
            border: none;
            box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
        }

        .header-btn.primary:hover {
            background: linear-gradient(135deg, var(--primary-hover) 0%, var(--primary-dark) 100%);
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(99, 102, 241, 0.3);
        }

        .header-btn.primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(99, 102, 241, 0.2);
        }

        .header-btn svg {
            width: 16px;
            height: 16px;
            stroke-width: 2;
        }

        .header-btn-text {
            transition: all var(--transition-speed) ease;
        }

        .sidebar.collapsed ~ .main-content .header-btn-text {
            opacity: 0;
            width: 0;
            overflow: hidden;
        }

        .user-info {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            padding: var(--spacing-sm) var(--spacing-md);
            border-radius: 10px;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .user-info:hover {
            background: var(--bg-secondary);
        }

        .user-avatar {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--bg-tertiary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-weight: var(--font-weight-semibold);
            font-size: var(--font-size-lg);
            border: 2px dashed var(--border-color);
        }

        .user-name {
            font-size: var(--font-size-sm);
            font-weight: var(--font-weight-medium);
            color: var(--text-primary);
        }

        .content-frame {
            flex: 1;
            border: none;
            width: 100%;
            height: 100%;
            min-height: 0;
            background: var(--bg-primary);
            overflow: auto;
        }

        /* 鍙充晶鍔熻兘鍖?*/
        .rightbar {
            width: var(--rightbar-width);
            background: var(--bg-primary);
            border-left: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            flex-shrink: 0;
            box-shadow: -2px 0 8px rgba(0, 0, 0, 0.02);
        }

        .rightbar-header {
            height: var(--header-height);
            padding: var(--spacing-md) var(--spacing-lg);
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            font-size: var(--font-size-lg);
            font-weight: var(--font-weight-semibold);
            color: var(--text-primary);
        }

        .rightbar-content {
            flex: 1;
            overflow-y: auto;
            padding: var(--spacing-lg);
        }

        .widget {
            background: var(--bg-secondary);
            border-radius: 8px;
            padding: var(--spacing-lg);
            margin-bottom: var(--spacing-lg);
            border: 1px solid var(--border-color);
        }

        .widget-title {
            font-size: var(--font-size-base);
            font-weight: var(--font-weight-semibold);
            color: var(--text-primary);
            margin-bottom: var(--spacing-md);
        }

        .widget-content {
            font-size: var(--font-size-sm);
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .stat-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: var(--spacing-sm) 0;
            border-bottom: 1px solid var(--border-color);
        }

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

        .stat-label {
            color: var(--text-secondary);
            font-size: var(--font-size-sm);
        }

        .stat-value {
            color: var(--text-primary);
            font-weight: var(--font-weight-medium);
            font-size: var(--font-size-sm);
        }

        /* 婊氬姩鏉℃牱寮?*/
        ::-webkit-scrollbar {
            width: 6px;
            height: 6px;
        }

        ::-webkit-scrollbar-track {
            background: var(--bg-secondary);
        }

        ::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 3px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--text-tertiary);
        }

        /* 鍝嶅簲寮忚璁?*/
        @media (max-width: 1600px) {
            :root {
                --rightbar-width: 280px;
                --sidebar-width: 240px;
            }
        }

        @media (max-width: 1280px) {
            .rightbar {
                display: none;
            }
            
            :root {
                --sidebar-width: 220px;
                --sidebar-collapsed-width: 64px;
            }
        }

        @media (max-width: 1024px) {
            .header-btn-text {
                display: none;
            }
            
            .header-btn {
                padding: var(--spacing-sm);
                min-width: 40px;
                justify-content: center;
            }
            
            .help-btn-text {
                display: none;
            }
            
            .user-name {
                display: none;
            }
        }
        @media (max-width: 768px) {
            :root {
                --sidebar-width: 280px;
                --sidebar-collapsed-width: 0;
                --header-height: 56px;
            }

            .sidebar {
                position: fixed;
                left: 0;
                top: 0;
                bottom: 0;
                z-index: 1000;
                transform: translateX(-100%);
                transition: transform var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
                box-shadow: 4px 0 24px rgba(0, 0, 0, 0.15);
            }

            .sidebar.collapsed {
                transform: translateX(-100%);
            }

            .sidebar:not(.collapsed) {
                transform: translateX(0);
            }

            .main-header {
                padding: 0 var(--spacing-md);
                z-index: 1001;
            }

            .header-left {
                z-index: 1002;
            }

            .menu-toggle-btn {
                width: 36px;
                height: 36px;
                z-index: 1002;
                position: relative;
                display: flex !important;
                visibility: visible !important;
                opacity: 1 !important;
            }

            .refresh-btn {
                width: 36px;
                height: 36px;
            }

            .refresh-btn svg {
                width: 18px;
                height: 18px;
            }

            .help-btn {
                height: 36px;
                padding: 0 var(--spacing-sm);
            }

            .help-btn svg {
                width: 18px;
                height: 18px;
            }

            .header-btn {
                padding: 8px;
                min-width: 36px;
                height: 36px;
            }

            .user-info {
                padding: 6px;
            }

            .user-avatar {
                width: 28px;
                height: 28px;
                font-size: var(--font-size-xs);
            }
        }

        @media (max-width: 480px) {
            .main-header {
                padding: 0 var(--spacing-sm);
            }
            
            .header-actions {
                gap: var(--spacing-xs);
            }
            
            .header-btn {
                padding: 6px;
                min-width: 32px;
                height: 32px;
            }
            
            .menu-toggle-btn {
                width: 32px;
                height: 32px;
            }
            
            .menu-toggle-btn svg {
                width: 16px;
                height: 16px;
            }

            .refresh-btn {
                width: 32px;
                height: 32px;
            }

            .refresh-btn svg {
                width: 16px;
                height: 16px;
            }

            .help-btn {
                height: 32px;
                padding: 0 var(--spacing-xs);
            }

            .help-btn svg {
                width: 16px;
                height: 16px;
            }
        }

        /* 鍔犺浇鐘舵€?*/
        .loading-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255, 255, 255, 0.9);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 100;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
        }

        .loading-overlay.show {
            opacity: 1;
            pointer-events: all;
        }

        .loading-spinner {
            width: 40px;
            height: 40px;
            border: 3px solid var(--border-color);
            border-top-color: var(--primary-color);
            border-radius: 50%;
            animation: spin 0.8s linear infinite;
        }

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

        /* 鍒锋柊涓撶敤loading鏍峰紡 */
        .refresh-loading {
            position: fixed;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            z-index: 10000;
            display: none;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 16px;
        }

        .refresh-loading.show {
            display: flex;
        }

        .refresh-spinner {
            width: 60px;
            height: 60px;
            position: relative;
        }

        .refresh-spinner-inner {
            width: 100%;
            height: 100%;
            border: 4px solid transparent;
            border-top: 4px solid var(--primary-color);
            border-right: 4px solid var(--primary-color);
            border-radius: 50%;
            animation: refresh-spin 1.2s cubic-bezier(0.68, -0.55, 0.27, 1.55) infinite;
            position: absolute;
            top: 0;
            left: 0;
        }

        .refresh-spinner-outer {
            width: 100%;
            height: 100%;
            border: 4px solid transparent;
            border-bottom: 4px solid var(--primary-dark);
            border-left: 4px solid var(--primary-dark);
            border-radius: 50%;
            animation: refresh-spin-reverse 1.5s cubic-bezier(0.68, -0.55, 0.27, 1.55) infinite;
            position: absolute;
            top: 0;
            left: 0;
        }

        .refresh-spinner-dot {
            width: 12px;
            height: 12px;
            background: var(--primary-color);
            border-radius: 50%;
            position: absolute;
            top: -6px;
            left: 50%;
            transform: translateX(-50%);
            animation: refresh-dot 1.2s ease-in-out infinite;
        }

        .refresh-loading-text {
            font-size: var(--font-size-base);
            font-weight: var(--font-weight-medium);
            color: var(--text-primary);
            background: var(--bg-primary);
            padding: 8px 20px;
            border-radius: 20px;
            box-shadow: 0 4px 20px rgba(99, 102, 241, 0.15);
            border: 1px solid var(--primary-light);
            animation: refresh-text-pulse 2s ease-in-out infinite;
        }

        @keyframes refresh-spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        @keyframes refresh-spin-reverse {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(-360deg); }
        }

        @keyframes refresh-dot {
            0%, 100% { 
                transform: translateX(-50%) scale(1);
                opacity: 1;
            }
            50% { 
                transform: translateX(-50%) scale(1.3);
                opacity: 0.8;
            }
        }

        @keyframes refresh-text-pulse {
            0%, 100% { 
                box-shadow: 0 4px 20px rgba(99, 102, 241, 0.15);
                transform: translateY(0);
            }
            50% { 
                box-shadow: 0 6px 25px rgba(99, 102, 241, 0.25);
                transform: translateY(-2px);
            }
        }

        /* 绌虹姸鎬?*/
        .empty-state {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            height: 100%;
            color: var(--text-tertiary);
            padding: var(--spacing-xl);
        }

        .empty-state-icon {
            font-size: 48px;
            margin-bottom: var(--spacing-md);
            opacity: 0.5;
        }

        .empty-state-text {
            font-size: var(--font-size-base);
            color: var(--text-secondary);
        }
        
        /* 鍦↗avaScript鍒濆鍖栧畬鎴愬墠锛岄殣钘忔墍鏈夎彍鍗曢」鐨刟ctive鐘舵€侊紝閬垮厤瑙嗚璺宠穬 */
        body:not(.js-initialized) .nav-item.active {
            background: var(--bg-primary) !important;
            color: var(--text-secondary) !important;
            font-weight: var(--font-weight-medium) !important;
            border: 1px solid transparent !important;
            box-shadow: none !important;
        }
        
        body:not(.js-initialized) .nav-item.active::before {
            display: none !important;
        }
        
        body:not(.js-initialized) .nav-item.active:hover {
            background: var(--bg-tertiary) !important;
            color: var(--primary-color) !important;
            border-color: var(--border-hover) !important;
            transform: translateX(2px) !important;
            box-shadow: none !important;
        }
        
        /* 登录注册弹窗样式已移至 auth.css 文件 */
        
        /* ============================================
           个人信息区域样式 - 固定在侧边栏底部（精美设计）
           ============================================ */
        
        .user-profile-section {
            margin-top: auto;
            padding: var(--spacing-md);
            border-top: 1px solid var(--border-color);
            background: linear-gradient(to bottom, var(--sidebar-bg) 0%, rgba(255, 255, 255, 0.98) 100%);
            position: sticky;
            bottom: 0;
            z-index: 10;
            transition: all var(--transition-speed) ease;
            backdrop-filter: blur(10px);
            overflow: visible; /* 确保下拉菜单不被裁剪 */
        }
        
        .sidebar.collapsed .user-profile-section {
            padding: var(--spacing-sm);
        }
        
        /* 未登录状态 - 精美卡片设计 */
        .profile-not-logged {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            padding: 12px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary-light) 0%, rgba(238, 242, 255, 0.8) 100%);
            border: 1px solid rgba(99, 102, 241, 0.2);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
        }
        
        .profile-not-logged::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(99, 102, 241, 0.02) 100%);
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        
        .profile-not-logged:hover {
            background: linear-gradient(135deg, var(--primary-light) 0%, rgba(238, 242, 255, 1) 100%);
            border-color: rgba(99, 102, 241, 0.3);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(99, 102, 241, 0.15);
        }
        
        .profile-not-logged:hover::before {
            opacity: 1;
        }
        
        .profile-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.7) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-color);
            flex-shrink: 0;
            border: 2px solid rgba(99, 102, 241, 0.2);
            box-shadow: 0 2px 8px rgba(99, 102, 241, 0.1);
            transition: all 0.3s ease;
        }
        
        .profile-not-logged:hover .profile-avatar {
            border-color: rgba(99, 102, 241, 0.4);
            box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
            transform: scale(1.05);
        }
        
        .profile-avatar svg {
            width: 22px;
            height: 22px;
            stroke-width: 2;
        }
        
        .profile-info {
            flex: 1;
            min-width: 0;
        }
        
        .profile-name {
            font-size: var(--font-size-sm);
            font-weight: var(--font-weight-semibold);
            color: var(--text-primary);
            margin-bottom: 4px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        
        .profile-action {
            display: flex;
            align-items: center;
        }
        
        .login-btn {
            padding: 6px 16px;
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
            color: white;
            border: none;
            border-radius: 8px;
            font-size: var(--font-size-xs);
            font-weight: var(--font-weight-semibold);
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
            position: relative;
            overflow: hidden;
        }
        
        .login-btn::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 0;
            height: 0;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.3);
            transform: translate(-50%, -50%);
            transition: width 0.6s, height 0.6s;
        }
        
        .login-btn:hover {
            background: linear-gradient(135deg, var(--primary-hover) 0%, var(--primary-color) 100%);
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(99, 102, 241, 0.4);
        }
        
        .login-btn:hover::before {
            width: 300px;
            height: 300px;
        }
        
        .login-btn:active {
            transform: translateY(0);
        }
        
        /* 已登录状态 - 精美卡片设计 */
        .profile-logged {
            position: relative;
        }
        
        .profile-main {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            padding: 12px;
            border-radius: 12px;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(248, 250, 252, 0.9) 100%);
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
        }
        
        .profile-main:hover {
            background: linear-gradient(135deg, rgba(255, 255, 255, 1) 0%, rgba(248, 250, 252, 1) 100%);
            border-color: rgba(99, 102, 241, 0.3);
            /* 移除浮动效果 */
            /* transform: translateY(-2px); */
            box-shadow: 0 4px 16px rgba(99, 102, 241, 0.12);
        }
        
        .profile-avatar.logged {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: var(--font-weight-bold);
            font-size: var(--font-size-base);
            flex-shrink: 0;
            border: 3px solid rgba(255, 255, 255, 0.3);
            box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.2);
            transition: all 0.3s ease;
            position: relative;
        }
        
        .profile-avatar.logged::after {
            content: '';
            position: absolute;
            top: -2px;
            left: -2px;
            right: -2px;
            bottom: -2px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
            opacity: 0;
            transition: opacity 0.3s ease;
            z-index: -1;
        }
        
        .profile-main:hover .profile-avatar.logged {
            /* 移除缩放效果 */
            /* transform: scale(1.08); */
            box-shadow: 0 6px 20px rgba(99, 102, 241, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.3);
        }
        
        .profile-main:hover .profile-avatar.logged::after {
            opacity: 0.3;
        }
        
        .profile-info {
            flex: 1;
            min-width: 0;
        }
        
        .profile-name {
            font-size: var(--font-size-sm);
            font-weight: var(--font-weight-semibold);
            color: var(--text-primary);
            margin-bottom: 2px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        
        .profile-email {
            font-size: var(--font-size-xs);
            color: var(--text-tertiary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        
        .profile-dropdown-btn {
            width: 28px;
            height: 28px;
            border: none;
            background: rgba(99, 102, 241, 0.1);
            color: var(--primary-color);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            margin-left: auto;
            border-radius: 6px;
        }
        
        .profile-dropdown-btn:hover {
            background: rgba(99, 102, 241, 0.15);
            /* 移除缩放效果 */
            /* transform: scale(1.1); */
        }
        
        .profile-dropdown-btn.active {
            background: rgba(99, 102, 241, 0.2);
        }
        
        .profile-dropdown-btn svg {
            width: 14px;
            height: 14px;
            stroke-width: 2.5;
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .profile-dropdown-btn.active svg {
            transform: rotate(180deg);
        }
        
        /* 上拉框（下拉菜单） - 精美设计 */
        .profile-dropdown {
            position: absolute !important;
            bottom: calc(100% + 8px) !important; /* 减少间距 */
            right: -40px !important; /* 负值让菜单超出侧边栏，向右移动更多 */
            left: auto !important; /* 强制取消左侧定位 */
            width: 240px !important; /* 进一步缩小宽度 */
            background: var(--bg-primary) !important;
            border-radius: 12px !important; /* 缩小圆角 */
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.15), 0 6px 20px rgba(0, 0, 0, 0.1), 0 0 0 1px rgba(0, 0, 0, 0.05) !important;
            border: 1px solid rgba(226, 232, 240, 0.8) !important;
            opacity: 0 !important;
            visibility: hidden !important;
            transform: translateY(10px) scale(0.95) !important;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
            z-index: 10000 !important;
            overflow: hidden !important;
            backdrop-filter: blur(20px) !important;
            pointer-events: none !important;
        }
        
        .profile-dropdown.show {
            opacity: 1 !important;
            visibility: visible !important;
            transform: translateY(0) scale(1) !important;
            pointer-events: auto !important;
        }
        
        .dropdown-header {
            padding: 8px 12px; /* 进一步减少内边距 */
            display: flex;
            align-items: center;
            gap: 6px; /* 进一步减少间距 */
            background: linear-gradient(135deg, var(--primary-light) 0%, rgba(238, 242, 255, 0.5) 100%);
            border-bottom: 1px solid rgba(226, 232, 240, 0.6);
            position: relative;
        }
        
        .dropdown-header::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.2), transparent);
        }
        
        .dropdown-avatar {
            width: 36px; /* 进一步缩小头像尺寸 */
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: var(--font-weight-bold);
            font-size: var(--font-size-xs); /* 进一步缩小字体 */
            flex-shrink: 0;
            border: 2px solid rgba(255, 255, 255, 0.4); /* 减少边框 */
            box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.2);
        }
        
        .dropdown-user-info {
            flex: 1;
            min-width: 0;
        }
        
        .dropdown-name {
            font-size: var(--font-size-sm); /* 缩小字体 */
            font-weight: var(--font-weight-semibold);
            color: var(--text-primary);
            margin-bottom: 2px; /* 减少间距 */
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        
        .dropdown-email {
            font-size: 11px; /* 进一步缩小字体 */
            color: var(--text-tertiary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        
        .dropdown-divider {
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--border-color), transparent);
            margin: 4px 0;
        }
        
        .dropdown-menu {
            padding: 6px 0;
        }
        
        .dropdown-item {
            display: flex;
            align-items: center;
            gap: 6px; /* 进一步减少间距 */
            padding: 6px 10px; /* 进一步减少内边距 */
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 12px; /* 缩小字体 */
            font-weight: var(--font-weight-medium);
            transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            cursor: pointer;
            position: relative;
            margin: 1px 3px; /* 进一步减少外边距 */
            border-radius: 6px;
        }
        
        .dropdown-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 0;
            background: var(--primary-color);
            border-radius: 0 2px 2px 0;
            transition: height 0.2s ease;
        }
        
        .dropdown-item:hover {
            background: linear-gradient(90deg, var(--primary-light) 0%, rgba(238, 242, 255, 0.3) 100%);
            color: var(--primary-color);
            transform: translateX(4px);
        }
        
        .dropdown-item:hover::before {
            height: 60%;
        }
        
        .dropdown-item svg {
            width: 13px; /* 进一步缩小图标 */
            height: 13px;
            stroke-width: 1.8;
            flex-shrink: 0;
            transition: transform 0.2s ease;
        }
        
        .dropdown-item:hover svg {
            transform: scale(1.1);
        }
        
        .dropdown-item span {
            flex: 1;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        
        .dropdown-item.logout {
            color: var(--error-color);
        }
        
        .dropdown-item.logout:hover {
            background: linear-gradient(90deg, rgba(239, 68, 68, 0.1) 0%, rgba(239, 68, 68, 0.05) 100%);
            color: var(--error-color);
        }
        
        .dropdown-item.logout::before {
            background: var(--error-color);
        }
        
        /* 侧边栏折叠状态下的样式 */
        .sidebar.collapsed .profile-not-logged {
            justify-content: center;
            padding: 10px;
        }
        
        .sidebar.collapsed .profile-info {
            display: none;
        }
        
        .sidebar.collapsed .profile-main {
            justify-content: center;
            padding: 10px;
        }
        
        .sidebar.collapsed .profile-info {
            display: none;
        }
        
        .sidebar.collapsed .profile-dropdown-btn {
            display: none;
        }
        
        .sidebar.collapsed .profile-dropdown {
            right: -40px !important; /* 负值让菜单超出侧边栏，向右移动更多 */
            left: auto !important; /* 强制取消左侧定位 */
            width: 220px !important; /* 进一步缩小宽度 */
        }
        
        .sidebar.collapsed .profile-avatar,
        .sidebar.collapsed .profile-avatar.logged {
            width: 36px;
            height: 36px;
            font-size: var(--font-size-sm);
        }
        
        /* 移动端响应式 */
        @media (max-width: 768px) {
            .user-profile-section {
                padding: var(--spacing-sm);
            }
            
            .profile-not-logged {
                padding: 10px;
            }
            
            .profile-main {
                padding: 10px;
            }
            
            .profile-avatar,
            .profile-avatar.logged {
                width: 40px;
                height: 40px;
            }
            
            .profile-dropdown {
                right: 4px !important; /* 进一步减少右边距 */
                left: auto !important; /* 强制取消左侧定位 */
                width: 240px !important; /* 进一步缩小宽度 */
                border-radius: 12px !important;
            }
            
            .dropdown-header {
                padding: 14px;
            }
            
            .dropdown-avatar {
                width: 48px;
                height: 48px;
            }
        }
        
        @media (max-width: 480px) {
            .user-profile-section {
                padding: var(--spacing-xs);
            }
            
            .profile-not-logged {
                padding: 8px;
                border-radius: 10px;
            }
            
            .profile-main {
                padding: 8px;
                border-radius: 10px;
            }
            
            .profile-avatar,
            .profile-avatar.logged {
                width: 36px;
                height: 36px;
                font-size: var(--font-size-sm);
            }
            
            .dropdown-avatar {
                width: 44px;
                height: 44px;
                font-size: var(--font-size-base);
            }
            
            .profile-dropdown {
                right: 2px !important; /* 进一步减少右边距 */
                left: auto !important; /* 强制取消左侧定位 */
                width: 220px !important; /* 进一步缩小宽度 */
                border-radius: 10px !important;
            }
            
            .dropdown-header {
                padding: 12px;
            }
            
            .dropdown-item {
                padding: 10px 14px;
                font-size: var(--font-size-xs);
            }
        }

        /* 客服悬浮按钮样式 */
        .customer-service-float {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 9998;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 
                         'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
        }

        .cs-float-btn {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: linear-gradient(135deg, #1890ff 0%, #40a9ff 100%);
            border: none;
            color: white;
            cursor: pointer;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 20px rgba(24, 144, 255, 0.3);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
            padding: 0;
        }

        .cs-float-btn:hover {
            transform: translateY(-3px) scale(1.05);
            box-shadow: 0 6px 25px rgba(24, 144, 255, 0.4);
            background: linear-gradient(135deg, #40a9ff 0%, #1890ff 100%);
        }

        .cs-float-btn:active {
            transform: translateY(-1px) scale(0.98);
            box-shadow: 0 3px 15px rgba(24, 144, 255, 0.3);
        }

        .cs-icon {
            width: 24px;
            height: 24px;
            stroke-width: 2;
            margin-bottom: 2px;
        }

        .cs-badge {
            font-size: 12px;
            font-weight: 500;
            opacity: 0.9;
        }

        .cs-panel {
            position: absolute;
            bottom: 70px;
            right: 0;
            width: 320px;
            background: white;
            border-radius: 12px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
        }

        .cs-panel.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .cs-panel-header {
            padding: 16px 20px;
            background: linear-gradient(135deg, #1890ff 0%, #40a9ff 100%);
            color: white;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .cs-panel-title {
            margin: 0;
            font-size: 16px;
            font-weight: 600;
        }

        .cs-close-btn {
            background: rgba(255, 255, 255, 0.2);
            border: none;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            color: white;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background 0.2s ease;
            padding: 0;
        }

        .cs-close-btn:hover {
            background: rgba(255, 255, 255, 0.3);
        }

        .cs-close-btn svg {
            width: 16px;
            height: 16px;
            stroke-width: 2.5;
        }

        .cs-panel-content {
            padding: 20px;
        }

        .cs-contact-info {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-bottom: 20px;
        }

        .cs-contact-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px;
            background: #f8f9fa;
            border-radius: 8px;
            transition: background 0.2s ease;
        }

        .cs-contact-item:hover {
            background: #e9ecef;
        }

        .cs-contact-icon {
            width: 20px;
            height: 20px;
            stroke-width: 2;
            color: #1890ff;
            flex-shrink: 0;
        }

        .cs-contact-details {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .cs-contact-label {
            font-size: 12px;
            color: #6c757d;
            font-weight: 500;
        }

        .cs-contact-value {
            font-size: 14px;
            color: #212529;
            font-weight: 500;
            word-break: break-all;
        }

        .cs-working-hours {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 12px;
            background: #fff3cd;
            border-radius: 8px;
            margin-bottom: 16px;
            border: 1px solid #ffeaa7;
        }

        .cs-time-icon {
            width: 16px;
            height: 16px;
            stroke-width: 2;
            color: #f39c12;
            flex-shrink: 0;
        }

        .cs-time-text {
            font-size: 13px;
            color: #856404;
            font-weight: 500;
        }

        .cs-tips {
            font-size: 12px;
            color: #6c757d;
            line-height: 1.5;
            text-align: center;
            padding: 8px;
        }

        .cs-tips p {
            margin: 4px 0;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .customer-service-float {
                bottom: 20px;
                right: 20px;
            }

            .cs-float-btn {
                width: 56px;
                height: 56px;
            }

            .cs-panel {
                width: 280px;
                bottom: 66px;
                right: -10px;
            }
        }

        @media (max-width: 480px) {
            .customer-service-float {
                bottom: 16px;
                right: 16px;
            }

            .cs-float-btn {
                width: 52px;
                height: 52px;
            }

            .cs-panel {
                width: calc(100vw - 32px);
                right: 0;
                left: 0;
                margin: 0 auto;
            }
        }

        /* 动画效果 */
        @keyframes csFloat {
            0%, 100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-5px);
            }
        }

        .cs-float-btn {
            animation: csFloat 3s ease-in-out infinite;
        }

        .cs-float-btn:hover {
            animation: none;
        }