@layer utilities {
            .content-auto { content-visibility: auto; }
            .card-hover { transition: transform 0.3s ease, box-shadow 0.3s ease; }
            .card-hover:hover { transform: translateY(-4px); box-shadow: 0 12px 24px -8px rgba(0, 0, 0, 0.1); }
            .section-padding { padding-top: clamp(2.5rem, 6vh, 4rem); padding-bottom: clamp(2.5rem, 6vh, 4rem); }
            .text-mark { 
                color: #006600; 
                position: relative; 
            }
            .text-mark::after {
                content: '';
                position: absolute;
                bottom: -2px;
                left: 0;
                width: 100%;
                height: 3px;
                background-color: #FFD700;
                opacity: 0.7;
            }
            .text-shadow {
                text-shadow: 0 2px 4px rgba(0,0,0,0.1);
            }
            .transition-custom {
                transition: all 0.3s ease;
            }
            
            /* 项目卡片样式 */
            .project-card {
                background: white;
                border-radius: 12px;
                overflow: hidden;
                transition: all 0.3s ease;
                box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
                height: 100%;
                display: flex;
                flex-direction: column;
            }
            .project-card:hover {
                transform: translateY(-8px);
                box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
            }
            .project-icon {
                width: 70px;
                height: 70px;
                border-radius: 50%;
                display: flex;
                align-items: center;
                justify-content: center;
                margin: 0 auto 20px;
                font-size: 28px;
                color: white;
                background: linear-gradient(135deg, #006600, #008800);
            }
            .project-content {
                padding: 30px;
                text-align: center;
                flex-grow: 1;
                display: flex;
                flex-direction: column;
            }
            .project-title {
                font-size: 1.25rem;
                font-weight: 700;
                margin-bottom: 15px;
                color: #1E293B;
            }
            .project-description {
                color: #64748B;
                line-height: 1.6;
            }
            
            /* 费用计算器样式 */
            .calculator-card {
                box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
                border-radius: 16px;
                transition: all 0.3s ease;
            }
            .calculator-card:hover {
                box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
            }
            .result-card {
                background: linear-gradient(135deg, #f0f7ff 0%, #e6f0ff 100%);
                border-radius: 12px;
            }
            
            /* FAQ样式 */
            .faq-item {
                border-radius: 12px;
                overflow: hidden;
                margin-bottom: 16px;
                transition: all 0.3s ease;
                border: 1px solid #e2e8f0;
            }
            .faq-item:hover {
                box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            }
            .faq-question {
                padding: 20px;
                background: white;
                cursor: pointer;
                display: flex;
                justify-content: space-between;
                align-items: center;
                font-weight: 600;
            }
            .faq-answer {
                padding: 0 20px;
                max-height: 0;
                overflow: hidden;
                background: white;
                transition: all 0.3s ease;
            }
            .faq-answer.active {
                padding: 20px;
                max-height: 500px;
            }
            .faq-icon {
                transition: transform 0.3s ease;
            }
            .faq-item.active .faq-icon {
                transform: rotate(180deg);
            }
            
            /* 英雄区域背景图样式 */
            .hero-section {
                background-image: linear-gradient(rgba(0, 102, 0, 0.8), rgba(0, 102, 0, 0.9)), url('../img/portugal1.jpg');
                background-size: cover;
                background-position: center;
                background-repeat: no-repeat;
            }
            
            /* 投资选项样式 */
            .investment-option {
                border: 2px solid #e2e8f0;
                border-radius: 12px;
                padding: 20px;
                cursor: pointer;
                transition: all 0.3s ease;
                background-color: #f8fafc;
                margin-bottom: 16px;
                position: relative;
                overflow: hidden;
            }
            .investment-option:hover {
                background-color: #f0f9ff;
                border-color: #0ea5e9;
            }
            .investment-option.active {
                border-color: #006600;
                background-color: rgba(0, 102, 0, 0.05);
            }
            .investment-option.active .option-header {
                color: #006600;
            }
            .investment-option .option-content {
                display: flex;
                align-items: center;
                justify-content: space-between;
            }
            .investment-option .option-details {
                max-height: 0;
                overflow: hidden;
                transition: all 0.3s ease;
                margin-top: 0;
            }
            .investment-option.active .option-details {
                max-height: 500px;
                margin-top: 20px;
            }
            
            /* 数据展示样式 */
            .data-card {
                background: white;
                border-radius: 12px;
                box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
                padding: 24px;
                transition: all 0.3s ease;
            }
            .data-card:hover {
                transform: translateY(-5px);
                box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
            }
            
            /* 图表样式 */
            .chart-bar {
                background: linear-gradient(to top, #006600, #00a000);
                border-radius: 4px 4px 0 0;
                transition: all 0.5s ease;
                height: 0;
            }
            .chart-bar.animate {
                animation: growBar 1.5s ease-out forwards;
            }
            @keyframes growBar {
                from { height: 0; }
                to { height: var(--target-height); }
            }
            
            .chart-container {
                position: relative;
                height: 200px;
                display: flex;
                align-items: flex-end;
                justify-content: space-around;
                padding: 0 20px;
            }
            
            .chart-label {
                position: absolute;
                bottom: -30px;
                left: 0;
                right: 0;
                text-align: center;
                font-size: 0.875rem;
                color: #64748b;
            }
            
            /* 费用计算器按钮样式 */
            .investment-option-small {
                transition: all 0.3s ease;
                border: 2px solid #e2e8f0;
            }
            .investment-option-small.active {
                background-color: rgba(0, 102, 0, 0.1);
                border-color: #006600;
                color: #006600;
            }

            /* 底部样式 */
            .footer-title {
                font-size: 18px;
                font-weight: bold;
                margin-bottom: 25px;
                position: relative;
                padding-bottom: 10px;
            }
            .footer-title::after {
                content: '';
                position: absolute;
                bottom: 0;
                left: 0;
                width: 40px;
                height: 3px;
                background-color: #E30A17;
            }
            
            /* 葡萄牙简介图标与标题并排样式 */
            .portugal-feature {
                display: flex;
                align-items: center;
                margin-bottom: 1rem;
            }
            
            /* 流程横版布局样式 */
            .process-timeline-horizontal {
                display: flex;
                justify-content: space-between;
                position: relative;
                margin: 3rem 0;
            }
            
            .process-timeline-horizontal::before {
                content: '';
                position: absolute;
                top: 25px;
                left: 0;
                right: 0;
                height: 3px;
                background: #e2e8f0;
                z-index: 1;
            }
            
            .process-step-horizontal {
                display: flex;
                flex-direction: column;
                align-items: center;
                position: relative;
                z-index: 2;
                flex: 1;
                max-width: 16.666%;
            }
            
            .process-step-number {
                width: 50px;
                height: 50px;
                border-radius: 50%;
                background-color: #006600;
                color: white;
                display: flex;
                align-items: center;
                justify-content: center;
                font-weight: bold;
                font-size: 1.25rem;
                margin-bottom: 1rem;
                z-index: 3;
            }
            
            .process-step-content {
                text-align: center;
                padding: 0 10px;
                background: white;
            }
            
            .process-step-title {
                font-weight: 600;
                margin-bottom: 0.5rem;
                font-size: 1.1rem;
            }
            
            .process-step-desc {
                color: #64748B;
                font-size: 0.9rem;
                line-height: 1.5;
            }
            
            /* 移动端适配 */
            @media (max-width: 768px) {
                .process-timeline-horizontal {
                    flex-direction: column;
                }
                
                .process-timeline-horizontal::before {
                    top: 0;
                    left: 25px;
                    right: auto;
                    width: 3px;
                    height: 100%;
                }
                
                .process-step-horizontal {
                    flex-direction: row;
                    align-items: flex-start;
                    margin-bottom: 2rem;
                    max-width: 100%;
                }
                
                .process-step-number {
                    margin-right: 1rem;
                    margin-bottom: 0;
                    flex-shrink: 0;
                }
                
                .process-step-content {
                    text-align: left;
                    padding: 0;
                }
            }
        }