/* ===== CSS重置与基础样式 ===== */
        :root {
            --primary: #2563eb;
            --primary-dark: #1e40af;
            --secondary: #10b981;
            --danger: #ef4444;
            --warning: #f59e0b;
            --light: #f8f9fa;
            --dark: #1f2937;
            --gray: #6b7280;
            --gray-light: #e5e7eb;
            --success: #10b981;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            -webkit-tap-highlight-color: transparent;
        }
        
        html, body {
            width: 100%;
            height: 100%;
            overflow-x: hidden;
            position: relative;
            font-size: 16px;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.5;
            color: var(--dark);
            background: var(--light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        
        /* ===== 容器与布局 ===== */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 16px;
        }
        
        @supports (padding: max(0px)) {
            .container {
                padding-left: max(16px, env(safe-area-inset-left));
                padding-right: max(16px, env(safe-area-inset-right));
            }
        }
        
        /* ===== 头部样式 ===== */
        .headerr {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: white;
            padding: 20px 0;
            margin-bottom: 20px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            width: 100%;
        }
        
        .header-content {
            width: 100%;
            padding: 0 16px;
        }
        
        @supports (padding: max(0px)) {
            .header-content {
                padding-left: max(16px, env(safe-area-inset-left));
                padding-right: max(16px, env(safe-area-inset-right));
            }
        }
        
        .headerr h1 {
	font-size: 0.8rem;
	font-weight: 700;
	margin-bottom: 8px;
	display: flex;
	align-items: center;
	gap: 10px;
	line-height: 1.3;
        }
        
        .header-subtitle {
            font-size: 0.875rem;
            opacity: 0.95;
            line-height: 1.5;
            margin-bottom: 12px;
        }
        
        .last-updated {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            padding: 6px 12px;
            background: rgba(255, 255, 255, 0.15);
            border-radius: 16px;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }
        
        /* ===== 主内容区域 ===== */
        .main-content {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-bottom: 24px;
            flex: 1;
        }
        
        /* ===== 卡片样式 ===== */
        .card {
            background: white;
            border-radius: 12px;
            padding: 20px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
            transition: all 0.2s ease;
            border: 1px solid var(--gray-light);
            width: 100%;
        }
        
        .card:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            transform: translateY(-1px);
        }
        
        .card-title {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
            padding-bottom: 12px;
            border-bottom: 2px solid #f3f4f6;
        }
        
        /* ===== 表单样式 ===== */
        .form-group {
            margin-bottom: 20px;
            width: 100%;
        }
        
        .form-label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #374151;
            font-size: 0.9375rem;
        }
        
        .form-control {
            width: 100%;
            padding: 14px 16px;
            font-size: 16px;
            line-height: 1.5;
            color: var(--dark);
            background-color: white;
            border: 2px solid #d1d5db;
            border-radius: 8px;
            transition: all 0.2s;
            -webkit-appearance: none;
            appearance: none;
            min-height: 48px;
        }
        
        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
        }
        
        .select-wrapper {
            position: relative;
            width: 100%;
        }
        
        .select-wrapper::after {
            content: "⌄";
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%);
            pointer-events: none;
            color: var(--gray);
            font-size: 18px;
            line-height: 1;
        }
        
        select.form-control {
            padding-right: 48px;
            background-image: none;
            width: 100%;
        }
        
        input[type="number"] {
            -moz-appearance: textfield;
            width: 100%;
        }
        
        input[type="number"]::-webkit-inner-spin-button,
        input[type="number"]::-webkit-outer-spin-button {
            -webkit-appearance: none;
            margin: 0;
        }
        
        /* ===== 表单行布局 ===== */
        .form-row {
            display: flex;
            flex-direction: column;
            gap: 16px;
            width: 100%;
        }
        
        /* ===== 按钮样式 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 100%;
            padding: 16px 24px;
            font-size: 1rem;
            font-weight: 600;
            line-height: 1.5;
            color: white;
            background-color: var(--primary);
            border: none;
            border-radius: 10px;
            cursor: pointer;
            transition: all 0.2s ease;
            touch-action: manipulation;
            user-select: none;
            min-height: 56px;
            text-decoration: none;
        }
        
        .btn:hover {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
        }
        
        .btn:active {
            transform: translateY(0);
        }
        
        .btn:disabled {
            opacity: 0.6;
            cursor: not-allowed;
            transform: none !important;
        }
        
        .btn-secondary {
            background-color: var(--gray);
        }
        
        .btn-secondary:hover {
            background-color: #4b5563;
        }
        
        .btn-success {
            background-color: var(--success);
        }
        
        .btn-success:hover {
            background-color: #059669;
        }
        
        /* ===== 标签切换 ===== */
        .tab-container {
            display: flex;
            flex-wrap: nowrap;
            overflow-x: auto;
            gap: 4px;
            margin-bottom: 20px;
            padding-bottom: 8px;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        
        .tab-container::-webkit-scrollbar {
            display: none;
        }
        
        .tab {
            flex: 0 0 auto;
            padding: 12px 20px;
            background: none;
            border: none;
            font-weight: 600;
            color: var(--gray);
            cursor: pointer;
            position: relative;
            transition: all 0.2s;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            border-radius: 8px;
            min-height: 48px;
        }
        
        .tab:hover {
            background-color: #f3f4f6;
            color: #374151;
        }
        
        .tab.active {
            color: var(--primary);
            background-color: #eff6ff;
        }
        
        .tab.active::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--primary);
            border-radius: 3px 3px 0 0;
        }
        
        .tab-content {
            display: none;
            animation: fadeIn 0.3s ease;
            width: 100%;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        
        .tab-content.active {
            display: block;
        }
        
        /* ===== 州选择器 ===== */
        .state-selector {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
            gap: 8px;
            margin-top: 12px;
            max-height: 280px;
            overflow-y: auto;
            padding: 12px;
            background: #f9fafb;
            border-radius: 8px;
            border: 1px solid var(--gray-light);
            -webkit-overflow-scrolling: touch;
        }
        
        .state-selector::-webkit-scrollbar {
            width: 6px;
        }
        
        .state-selector::-webkit-scrollbar-track {
            background: #f1f1f1;
            border-radius: 3px;
        }
        
        .state-selector::-webkit-scrollbar-thumb {
            background: #c1c1c1;
            border-radius: 3px;
        }
        
        .state-selector::-webkit-scrollbar-thumb:hover {
            background: #a1a1a1;
        }
        
        .state-option {
            padding: 12px 8px;
            background: white;
            border: 2px solid var(--gray-light);
            border-radius: 8px;
            text-align: center;
            cursor: pointer;
            transition: all 0.2s;
            font-size: 0.875rem;
            font-weight: 500;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            user-select: none;
            touch-action: manipulation;
        }
        
        .state-option:hover {
            border-color: var(--primary);
            background: #eff6ff;
        }
        
        .state-option.selected {
            background: var(--primary);
            color: white;
            border-color: var(--primary);
            font-weight: 600;
        }
        
        .state-wage {
            font-size: 0.75rem;
            opacity: 0.8;
            font-weight: normal;
        }
        
        .state-option.selected .state-wage {
            opacity: 0.9;
        }
        
        /* ===== 结果区域 ===== */
        .results {
            background: linear-gradient(135deg, #f0f7ff 0%, #e4edf5 100%);
            border-left: 4px solid var(--primary);
            padding: 20px;
            border-radius: 10px;
            margin-top: 20px;
            display: none;
            animation: slideIn 0.3s ease-out;
        }
        
        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateY(10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .results.show {
            display: block;
        }
        
        .results-header {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-bottom: 20px;
            padding-bottom: 16px;
            border-bottom: 1px solid rgba(37, 99, 235, 0.1);
        }
        
        .results-title {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--primary-dark);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .result-grid {
	display: flex;
	flex-direction: column;
	gap: 12px;
	margin-bottom: 20px;
        }
        
        .result-item {
            background: white;
            padding: 16px;
            border-radius: 8px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
        }
        
        .result-label {
            font-size: 0.875rem;
            color: var(--gray);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        
        .result-value {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.2;
        }
        
        .result-subtext {
            font-size: 0.75rem;
            color: #9ca3af;
            margin-top: 4px;
            line-height: 1.3;
        }
        
        /* ===== 高级功能 ===== */
        .advanced-toggle {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--primary);
            font-weight: 600;
            cursor: pointer;
            margin-bottom: 16px;
            user-select: none;
            padding: 12px;
            border-radius: 8px;
            background: #f8fafc;
            transition: all 0.2s;
            touch-action: manipulation;
        }
        
        .advanced-toggle:hover {
            background: #f1f5f9;
        }
        
        .advanced-content {
            display: none;
            padding: 16px;
            background: #f8fafc;
            border-radius: 8px;
            margin-top: 8px;
        }
        
        .advanced-content.show {
            display: block;
        }
        
        /* ===== 比较图表 ===== */
        .comparison-chart {
            background: white;
            border-radius: 8px;
            padding: 16px;
            margin-top: 16px;
            border: 1px solid var(--gray-light);
        }
        
        .comparison-item {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            padding: 12px 0;
            border-bottom: 1px solid #f3f4f6;
            gap: 4px;
        }
        
        .comparison-item:last-child {
            border-bottom: none;
        }
        
        .comparison-item span:last-child {
            align-self: flex-end;
            margin-top: 2px;
        }
        
        /* ===== 法律信息 ===== */
        .legal-disclaimer {
            background: #f9fafb;
            border: 1px solid var(--gray-light);
        }
        
        .legal-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }
        
        .legal-content ul {
            padding-left: 20px;
            margin: 12px 0;
        }
        
        .legal-content li {
            margin-bottom: 8px;
            line-height: 1.5;
        }
        
        .resource-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 20px;
        }
        
        .resource-link {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 12px 16px;
            background: white;
            border: 1px solid var(--gray-light);
            border-radius: 8px;
            color: var(--primary);
            text-decoration: none;
            transition: all 0.2s;
        }
        
        .resource-link:hover {
            background: #f0f7ff;
            border-color: var(--primary);
        }
        
        /* ===== 警告样式 ===== */
        .alert {
            padding: 16px;
            border-radius: 8px;
            margin-bottom: 16px;
            border: 1px solid transparent;
        }
        
        .alert-header {
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }
        
        .alert-info {
            background-color: #eff6ff;
            border-color: #dbeafe;
            color: var(--primary-dark);
        }
        
        .alert-warning {
            background-color: #fef3c7;
            border-color: #fde68a;
            color: #92400e;
        }
        
        .alert-danger {
            background-color: #fee2e2;
            border-color: #fecaca;
            color: #991b1b;
        }
        
        .alert-success {
            background-color: #d1fae5;
            border-color: #a7f3d0;
            color: #065f46;
        }
        
        /* ===== 输入验证样式 ===== */
        .invalid {
            border-color: var(--danger) !important;
            background-color: #fef2f2 !important;
        }
        
        .valid {
            border-color: var(--success) !important;
        }
        
        /* ===== 工具提示 ===== */
        .tooltip {
            position: relative;
            display: inline-block;
            margin-left: 5px;
        }
        
        .tooltip .tooltiptext {
            visibility: hidden;
            width: 200px;
            background-color: #374151;
            color: white;
            text-align: center;
            border-radius: 6px;
            padding: 8px;
            position: absolute;
            z-index: 1;
            bottom: 125%;
            left: 50%;
            transform: translateX(-50%);
            font-size: 0.75rem;
            opacity: 0;
            transition: opacity 0.3s;
        }
        
        .tooltip:hover .tooltiptext {
            visibility: visible;
            opacity: 1;
        }
        
        .tooltip .tooltiptext::after {
            content: "";
            position: absolute;
            top: 100%;
            left: 50%;
            margin-left: -5px;
            border-width: 5px;
            border-style: solid;
            border-color: #374151 transparent transparent transparent;
        }
        
        /* ===== 实用类 ===== */
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }
        
        .no-print {
            @media print {
                display: none !important;
            }
        }
        
        .required {
            font-size: 0.75rem;
            color: var(--danger);
            margin-left: 8px;
            font-weight: normal;
        }
        
        /* ===== 空状态 ===== */
        .empty-state {
            text-align: center;
            padding: 40px 20px;
            color: var(--gray);
        }
        
        .empty-state i {
            font-size: 3rem;
            margin-bottom: 16px;
            color: #d1d5db;
        }
        
        .empty-state h3 {
            font-size: 1.25rem;
            margin-bottom: 8px;
            color: var(--dark);
        }
        
        .empty-state p {
            font-size: 0.875rem;
            margin-bottom: 20px;
        }
        
        /* ===== 聚焦样式改进 ===== */
        :focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        
        /* ===== 防止iOS输入框缩放 ===== */
        @media screen and (max-width: 768px) {
            input[type="text"],
            input[type="number"],
            select,
            textarea {
                font-size: 16px !important;
            }
        }
        
        /* ===== 响应式设计 - 平板(640px+) ===== */
        @media (min-width: 640px) {
            .container {
                padding: 0 20px;
            }
            
            .headerr h1 {
                font-size: 1.2rem;
            }
            
            .header-subtitle {
                font-size: 1rem;
                max-width: 600px;
            }
            
            .card-title {
                font-size: 1.4rem;
            }
            
            /* 平板表单布局 */
            .form-row {
                flex-direction: row;
                flex-wrap: wrap;
            }
            
            .form-row .form-group {
                flex: 1 1 calc(50% - 8px);
            }
            
            /* 平板结果网格 */
            .result-grid {
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            
            /* 平板州选择器 */
            .state-selector {
                grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
            }
            
            /* 平板比较图表 */
            .comparison-item {
                flex-direction: row;
                justify-content: space-between;
                align-items: center;
            }
            
            .comparison-item span:last-child {
                align-self: center;
                margin-top: 0;
            }
            
            /* 平板资源链接 */
            .resource-links {
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
        }
        
        /* ===== 响应式设计 - 桌面(1024px+) ===== */
        @media (min-width: 1024px) {
            .container {
                padding: 0 32px;
                max-width: 1200px;
            }
            
            .headerr {
                padding: 28px 0;
                margin-bottom: 32px;
                border-radius: 0 0 16px 16px;
            }
            
            .headerr h1 {
                font-size: 1.5rem;
            }
            
            .header-subtitle {
                font-size: 1.1rem;
                max-width: 800px;
            }
            
            /* 桌面网格布局 */
            .main-content {
                display: grid;
                grid-template-columns: repeat(3, 1fr);
                grid-template-rows: auto auto auto;
                gap: 24px;
                margin-bottom: 40px;
            }
            
            /* 卡片布局分配 */
            .calculator-card {
                grid-column: 1 / 3;
                grid-row: 1;
            }
            
            .states-card {
                grid-column: 3;
                grid-row: 1;
                display: flex;
                flex-direction: column;
            }
            
            .results-card {
                grid-column: 1 / 3;
                grid-row: 2;
            }
            
            .advanced-card {
                grid-column: 3;
                grid-row: 2;
                display: flex;
                flex-direction: column;
            }
            
            .legal-card {
                grid-column: 1 / -1;
                grid-row: 3;
            }
            
            /* 确保第一行两个卡片等高 */
            .calculator-card, .states-card {
                min-height: 450px;
            }
            
            .states-card .state-selector {
                flex: 1;
            }
            
            /* 桌面结果网格 */
            .result-grid {
                grid-template-columns: repeat(4, 1fr);
            }
            
            .result-item {
                padding: 20px;
            }
            
            .result-value {
                font-size: 1.8rem;
            }
            
            /* 桌面按钮优化 */
            .btn {
                width: auto;
                max-width: 300px;
            }
            
            /* 桌面州选择器 */
            .state-selector {
                grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
                max-height: 400px;
            }
            
            /* 桌面资源链接 */
            .resource-links {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            
            /* 桌面法律信息 */
            .legal-content ul {
                columns: 2;
                column-gap: 40px;
            }
			.result-value {
        font-size: 1.2rem;
        }
        
        /* ===== 超大桌面(1440px+) ===== */
        @media (min-width: 1440px) {
            .container {
                max-width: 1400px;
            }
            .result-value {
        font-size: 1.2rem;
            .headerr h1 {
                font-size: 1.2rem;
            }
            
            .main-content {
                gap: 32px;
            }
            
            .result-grid {
                gap: 24px;
            }
            
            .result-value {
                font-size: 2rem;
            }
        }
		 @media (max-width: 820px) {
		 .headerr h1 {
                font-size: 0.8rem;
                gap: 8px;
            }
			}
		 @media (max-width: 768px) {
		 .headerr h1 {
                font-size: 0.8rem;
                gap: 8px;
            }
			}
		 @media (max-width: 468px) {
		 .headerr h1 {
                font-size: 0.5rem;
                gap: 8px;
            }
			}
        
        /* ===== 非常小的手机(≤359px)优化 ===== */
        @media (max-width: 359px) {
            .container {
                padding: 0 12px;
            }
            
            .headerr h1 {
                font-size: 0.5rem;
                gap: 8px;
            }
            
            .header-subtitle {
                font-size: 0.8rem;
            }
            
            .card {
                padding: 16px 12px;
            }
            
            .card-title {
                font-size: 1.1rem;
                margin-bottom: 16px;
            }
            
            .form-control {
                padding: 12px;
                min-height: 44px;
            }
            
            .btn {
                padding: 14px 16px;
                min-height: 52px;
                font-size: 0.95rem;
            }
            
            .state-selector {
                grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
                gap: 6px;
                padding: 10px;
            }
            
            .state-option {
                padding: 10px 6px;
                font-size: 0.8rem;
                min-height: 45px;
            }
            
            .state-wage {
                font-size: 0.7rem;
            }
            
            .tab {
                padding: 10px 16px;
                min-width: 90px;
                font-size: 0.9rem;
            }
            
            .result-value {
                font-size: 1.3rem;
            }
        }
        
        /* ===== 横屏优化 ===== */
        @media (max-height: 500px) and (orientation: landscape) {
            .headerr {
                padding: 12px 0;
                margin-bottom: 12px;
            }
            
            .headerr h1 {
                font-size: 0.8rem;
                margin-bottom: 4px;
            }
            
            .header-subtitle {
                display: none;
            }
            
            .main-content {
                gap: 12px;
                margin-bottom: 16px;
            }
            
            .card {
                padding: 16px;
            }
            
            .card-title {
                font-size: 1.1rem;
                margin-bottom: 12px;
                padding-bottom: 8px;
            }
            
            .state-selector {
                max-height: 120px;
            }
        }
        
        /* ===== 打印样式 ===== */
        @media print {
            .no-print,
            .btn,
            .tab-container,
            .state-selector,
            .advanced-toggle,
            .resource-links,
            .empty-state {
                display: none !important;
            }
            
            .card {
                box-shadow: none;
                border: 1px solid #ddd;
                break-inside: avoid;
            }
            
            .results {
                background: none;
                border-left: 3px solid var(--primary);
            }
            
            body {
                font-size: 12pt;
                background: white;
                color: black;
            }
            
            .container {
                max-width: 100%;
                padding: 0;
            }
            
            .headerr {
                background: white !important;
                color: black !important;
                box-shadow: none;
            }
        }