:root {
            --color-success: #10b981;
            --color-warning: #f59e0b;
            --color-danger: #ef4444;
            --color-info: #3b82f6;
            --color-neutral: #6b7280;
            --color-primary: #667eea;
            --color-secondary: #764ba2;
            --color-accent: #8b5cf6;
        }

        body {
            font-family: 'Inter', 'Noto Sans SC', sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            background-attachment: fixed;
        }

        .glass-effect {
            background: rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.18);
        }

        .card-shadow {
            box-shadow:
                0 25px 50px -12px rgba(0, 0, 0, 0.25),
                0 10px 20px -5px rgba(0, 0, 0, 0.1),
                0 0 0 1px rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .input-focus {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            border-width: 2px;
        }

        .input-focus:focus {
            transform: translateY(-2px);
            box-shadow:
                0 20px 25px -5px rgba(0, 0, 0, 0.1),
                0 10px 10px -5px rgba(0, 0, 0, 0.04);
            border-color: #667eea;
        }

        .input-focus:hover:not(:focus) {
            border-color: #a5b4fc;
            background-color: rgba(255, 255, 255, 0.8);
        }

        .chart-container {
            position: relative;
            margin: auto;
            height: 400px;
            /* 增加高度 */
            width: 100%;
        }

        .chart-container-large {
            position: relative;
            margin: auto;
            height: 500px;
            /* 大屏幕下更大的图表 */
            width: 100%;
        }

        @media (min-width: 1280px) {
            .chart-container {
                height: 500px;
            }

            #detailed-analysis {
                margin-top: 2rem;
            }

            #detailed-analysis .bg-white {
                padding: 3rem 2rem;
            }
        }

        .animate-fade-in {
            animation: fadeIn 0.8s ease-out forwards;
        }

        .animate-slide-up {
            animation: slideUp 0.6s ease-out forwards;
        }

        .animate-bounce-in {
            animation: bounceIn 0.8s ease-out forwards;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
            }

            to {
                opacity: 1;
            }
        }

        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes bounceIn {
            0% {
                opacity: 0;
                transform: scale(0.3);
            }

            50% {
                opacity: 1;
                transform: scale(1.05);
            }

            70% {
                transform: scale(0.9);
            }

            100% {
                transform: scale(1);
            }
        }

        .gradient-border {
            background: linear-gradient(135deg, #667eea, #764ba2);
            padding: 2px;
            border-radius: 16px;
        }

        .gradient-border-content {
            background: white;
            border-radius: 14px;
        }

        .number-display {
            background: linear-gradient(135deg, #667eea, #764ba2);
            background-clip: text;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            font-weight: 800;
            text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
        }

        .danger-number {
            background: linear-gradient(135deg, #ef4444, #dc2626);
            background-clip: text;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            font-weight: 800;
            text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
        }

        .success-number {
            background: linear-gradient(135deg, #10b981, #059669);
            background-clip: text;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            font-weight: 800;
            text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
        }

        .floating-animation {
            animation: floating 3s ease-in-out infinite;
        }

        @keyframes floating {

            0%,
            100% {
                transform: translateY(0px);
            }

            50% {
                transform: translateY(-10px);
            }
        }

        /* 增强的背景装饰 */
        .background-decoration {
            position: fixed;
            inset: 0;
            overflow: hidden;
            pointer-events: none;
            z-index: -1;
        }

        .decoration-element {
            position: absolute;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(20px);
        }

        .decoration-1 {
            top: 10%;
            left: 10%;
            width: 300px;
            height: 300px;
            animation: float-slow 15s ease-in-out infinite;
        }

        .decoration-2 {
            bottom: 15%;
            right: 15%;
            width: 200px;
            height: 200px;
            animation: float-slow 12s ease-in-out infinite reverse;
        }

        .decoration-3 {
            top: 40%;
            right: 20%;
            width: 150px;
            height: 150px;
            animation: float-medium 10s ease-in-out infinite;
        }

        @keyframes float-slow {

            0%,
            100% {
                transform: translate(0, 0) rotate(0deg);
            }

            25% {
                transform: translate(-20px, -30px) rotate(5deg);
            }

            50% {
                transform: translate(10px, -50px) rotate(-5deg);
            }

            75% {
                transform: translate(30px, -20px) rotate(3deg);
            }
        }

        @keyframes float-medium {

            0%,
            100% {
                transform: translate(0, 0) rotate(0deg);
            }

            25% {
                transform: translate(-15px, -20px) rotate(-3deg);
            }

            50% {
                transform: translate(20px, -40px) rotate(4deg);
            }

            75% {
                transform: translate(-10px, -15px) rotate(-2deg);
            }
        }

        .pulse-glow {
            animation: pulseGlow 2s ease-in-out infinite;
        }

        @keyframes pulseGlow {

            0%,
            100% {
                box-shadow: 0 0 20px rgba(239, 68, 68, 0.3);
            }

            50% {
                box-shadow: 0 0 30px rgba(239, 68, 68, 0.6);
            }
        }

        .hidden-initial {
            opacity: 0;
            transform: translateY(40px);
            transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .show {
            opacity: 1;
            transform: translateY(0);
        }

        #detailed-analysis {
            opacity: 0;
            transform: translateY(60px) scale(0.95);
            transition: all 1s cubic-bezier(0.4, 0, 0.2, 1);
        }

        #detailed-analysis.show {
            opacity: 1;
            transform: translateY(0) scale(1);
        }

        /* Footer 样式 */
        .footer {
            background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
            backdrop-filter: blur(10px);
            border-top: 1px solid rgba(255, 255, 255, 0.2);
            margin-top: 4rem;
        }

        .footer-link {
            color: rgba(255, 255, 255, 0.9);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .footer-link:hover {
            color: white;
            transform: translateY(-2px);
            text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
        }

        .footer-divider {
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
            margin: 2rem 0;
        }

        .social-icon {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .social-icon:hover {
            transform: scale(1.1) rotate(5deg);
        }

        .hover-lift {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .hover-lift:hover {
            transform: translateY(-5px);
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
        }

        .btn-primary {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
        }

        .btn-primary::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: left 0.5s;
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
            transform: translateY(-2px);
            box-shadow: 0 20px 25px -5px rgba(102, 126, 234, 0.4);
        }

        .btn-primary:hover::before {
            left: 100%;
        }

        .btn-primary:active {
            transform: translateY(0) scale(0.98);
        }

        .stats-card {
            position: relative;
            overflow: hidden;
        }

        .stats-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: left 0.5s;
        }

        .stats-card:hover::before {
            left: 100%;
        }

        /* 移动端优化 */
        @media (max-width: 640px) {
            .input-focus {
                font-size: 16px;
                /* 防止iOS缩放 */
                padding: 1rem;
            }

            .stats-card {
                padding: 1.5rem 1rem;
            }

            .chart-container {
                height: 300px;
            }
        }

        /* 表格样式优化 */
        .data-table {
            border-collapse: separate;
            border-spacing: 0;
            width: 100%;
            border-radius: 16px;
            overflow: hidden;
        }

        .data-table th {
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            padding: 1rem 1.5rem;
            text-align: left;
        }

        .data-table td {
            padding: 1rem 1.5rem;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            transition: background-color 0.2s ease;
        }

        .data-table tr:last-child td {
            border-bottom: none;
        }

        .data-table tr:hover td {
            background-color: rgba(102, 126, 234, 0.05);
        }

        .data-table tr:nth-child(even) {
            background-color: rgba(0, 0, 0, 0.02);
        }

        .data-table tr:nth-child(even):hover td {
            background-color: rgba(102, 126, 234, 0.08);
        }

        /* 风险等级色彩指示 */
        .risk-low {
            background: linear-gradient(135deg, var(--color-success), #059669);
            border-color: var(--color-success);
        }

        .risk-medium {
            background: linear-gradient(135deg, var(--color-warning), #d97706);
            border-color: var(--color-warning);
        }

        .risk-high {
            background: linear-gradient(135deg, var(--color-danger), #dc2626);
            border-color: var(--color-danger);
        }

        /* 增强按钮交互 */
        .btn-calculate {
            position: relative;
            overflow: hidden;
        }

        .btn-calculate::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 0;
            height: 0;
            background: rgba(255, 255, 255, 0.3);
            border-radius: 50%;
            transform: translate(-50%, -50%);
            transition: width 0.6s, height 0.6s;
        }

        .btn-calculate:active::before {
            width: 300px;
            height: 300px;
        }

        /* 快捷选择按钮 */
        .quick-select-btn {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            border: 2px solid transparent;
            position: relative;
            overflow: hidden;
        }

        .quick-select-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: left 0.5s;
        }

        .quick-select-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        }

        .quick-select-btn:hover::before {
            left: 100%;
        }

        .quick-select-btn.active {
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            border-color: #667eea;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
        }

        .quick-select-btn:active {
            transform: translateY(0) scale(0.98);
        }

        /* 建议卡片样式 */
        .recommendation-card {
            border-left: 4px solid;
            transition: all 0.3s ease;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(10px);
            border-radius: 16px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.3);
            margin-bottom: 12px;
        }

        .recommendation-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
        }

        .recommendation-card.warning {
            border-left-color: var(--color-warning);
            background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(217, 119, 6, 0.15));
        }

        .recommendation-card.info {
            border-left-color: var(--color-info);
            background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(37, 99, 235, 0.15));
        }

        .recommendation-card.danger {
            border-left-color: var(--color-danger);
            background: linear-gradient(135deg, rgba(239, 68, 68, 0.2), rgba(220, 38, 38, 0.15));
        }

        /* 改进文字对比度 */
        .recommendation-card h4 {
            color: #1f2937;
            font-weight: 600;
        }

        .recommendation-card p {
            color: #4b5563;
            line-height: 1.5;
        }

        .recommendation-card.warning h4,
        .recommendation-card.warning p {
            color: #92400e;
        }

        .recommendation-card.info h4,
        .recommendation-card.info p {
            color: #1e40af;
        }

        .recommendation-card.danger h4,
        .recommendation-card.danger p {
            color: #991b1b;
        }

        /* 输入验证样式 */
        .input-valid {
            border-color: var(--color-success) !important;
            background-color: rgba(16, 185, 129, 0.05) !important;
        }

        .input-invalid {
            border-color: var(--color-danger) !important;
            background-color: rgba(239, 68, 68, 0.05) !important;
        }

        /* 导出按钮样式 */
        .export-btn {
            background: linear-gradient(135deg, #10b981, #059669);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
        }

        .export-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: left 0.5s;
        }

        .export-btn:hover {
            background: linear-gradient(135deg, #059669, #047857);
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(16, 185, 129, 0.3);
        }

        .export-btn:hover::before {
            left: 100%;
        }

        .export-btn:active {
            transform: translateY(0) scale(0.98);
        }