/* 核心卖点 - 完整保留 + 唯梦风格增强 */
.key-features-section {
    padding: 6rem 0;
    background: white;
    /* 唯梦风格：背景网格 */
    background-image: 
        linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
    background-size: 20px 20px;
}

.key-features-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
    margin-top: 3rem;
}

/* 核心卖点项 - 完整保留 + 唯梦风格增强 */
.key-feature-item {
    flex: 1;
    min-width: 180px;
    max-width: 200px;
    text-align: center;
    padding: 2rem 1.5rem;
    background: white;
    border-radius: 12px;
    border: 1px solid #f1f5f9;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.key-feature-item:hover {
    transform: translateY(-12px) scale(1.05);
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.15);
    border-color: rgba(59, 130, 246, 0.2);
    background: linear-gradient(135deg, #ffffff, #f8fafc);
}

/* 发光边框 - 完整保留 */
.key-feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 12px;
    padding: 2px;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    -webkit-mask: 
        linear-gradient(#fff 0 0) content-box, 
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 1;
}

.key-feature-item:hover::before {
    opacity: 1;
    animation: borderGlow 2s infinite;
}

/* 核心卖点图标 - 完整保留 + 唯梦风格增强 */
.key-feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    transition: all 0.4s ease;
    position: relative;
    z-index: 2;
    /* 唯梦风格：图标脉冲效果 */
}

.key-feature-icon::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 12px;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    z-index: -1;
    animation: pulse 2s infinite;
    opacity: 0.5;
}

.key-feature-item:hover .key-feature-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3);
}

.key-feature-icon i {
    font-size: 1.5rem;
    color: white;
    transition: all 0.4s ease;
}

.key-feature-item:hover .key-feature-icon i {
    transform: scale(1.1);
}

.key-feature-title {
    font-size: 1rem;
    font-weight: 600;
    color: #333;
    margin: 0;
    position: relative;
    z-index: 2;
    transition: all 0.3s ease;
}

.key-feature-item:hover .key-feature-title {
    color: #3b82f6;
    transform: translateY(-2px);
}

/* 服务卡片 - 完整保留 + 唯梦风格增强 */
.service-section {
    padding: 6rem 0;
    background: #f8fafc;
    /* 唯梦风格：渐变背景 */
    background: linear-gradient(135deg, #f8fafc 0%, #f0f7ff 100%);
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
}

.service-card {
    background: white;
    border-radius: 16px;
    padding: 3rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border: 1px solid #f1f5f9;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
    /* 唯梦风格：卡片悬浮效果 */
    position: relative;
    overflow: hidden;
}

/* 唯梦风格：卡片背景光效 */
.service-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.05) 0%, transparent 70%);
    transform: rotate(30deg);
    transition: all 0.8s ease;
}

.service-card:hover::before {
    top: -30%;
    right: -30%;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(59, 130, 246, 0.1);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
    /* 唯梦风格：图标旋转 */
    transition: all 0.5s ease;
}

.service-card:hover .service-icon {
    transform: rotate(10deg) scale(1.05);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.2);
}

.service-card:first-child .service-icon i {
    font-size: 2rem;
    color: white;
}

.service-card:nth-child(2) .service-icon i {
    font-size: 2rem;
    color: white;
}

.service-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 1.5rem;
}

.service-text {
    color: #666;
    line-height: 1.7;
    margin-bottom: 2rem;
    font-size: 1.05rem;
}

/* 核心优势 - 完整保留 + 唯梦风格增强 */
.advantages-section {
    padding: 6rem 0;
    background: white;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.advantage-card {
    text-align: center;
    padding: 2.5rem 2rem;
    background: white;
    border-radius: 16px;
    border: 1px solid #f1f5f9;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
    /* 唯梦风格：卡片hover效果 */
    position: relative;
    overflow: hidden;
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 25px rgba(59, 130, 246, 0.1);
}

/* 唯梦风格：优势卡片背景动画 */
.advantage-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #3b82f6, #8b5cf6);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
}

.advantage-card:hover::after {
    transform: scaleX(1);
}

.advantage-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(139, 92, 246, 0.1));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    transition: all 0.4s ease;
}

.advantage-card:hover .advantage-icon {
    transform: scale(1.1);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(139, 92, 246, 0.15));
}

.advantage-icon i {
    font-size: 2rem;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    transition: all 0.4s ease;
}

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

.advantage-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 1rem;
}

.advantage-text {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
}

/* 使用流程 - 完整保留 + 唯梦风格增强 */
.process-section {
    padding: 6rem 0;
    background: #f8fafc;
    /* 唯梦风格：流程背景 */
    background: linear-gradient(135deg, #f8fafc 0%, #f5fafe 100%);
    position: relative;
    overflow: hidden;
}

/* 唯梦风格：流程背景装饰 */
.process-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px);
    background-size: 20px 20px;
    z-index: 0;
}

.process-step {
    text-align: center;
    padding: 2rem 1rem;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
    position: relative;
    z-index: 1;
}

.process-step:hover {
    transform: translateY(-5px);
}

/* 步骤数字 - 完整保留 + 唯梦风格增强 */
.step-number {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3);
    position: relative;
    z-index: 1;
    /* 唯梦风格：3D效果 */
    transform-style: preserve-3d;
    transition: all 0.4s ease;
}

.process-step:hover .step-number {
    transform: scale(1.1) rotateY(15deg);
    box-shadow: 0 12px 25px rgba(59, 130, 246, 0.4);
}

.step-number::after {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border-radius: 50%;
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    opacity: 0.2;
    z-index: -1;
    animation: pulse 2s infinite;
}

.step-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 1rem;
}

.step-description {
    color: #666;
    font-size: 1rem;
    line-height: 1.6;
    margin: 0;
}

/* 公告区域 - 完整保留 */
.announcement-section {
    padding: 6rem 0;
    background: #f8fafc;
}

.announcement-card {
    background: white;
    border-radius: 16px;
    padding: 3rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border: 1px solid #f1f5f9;
}

/* 行动号召 - 完整保留 + 唯梦风格增强 */
.cta-section {
    padding: 6rem 0;
    background: white;
}

.cta-box {
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    border-radius: 16px;
    padding: 4rem;
    text-align: center;
    color: white;
    box-shadow: 0 15px 35px rgba(59, 130, 246, 0.2);
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

/* 唯梦风格：CTA背景动画 */
.cta-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 30% 20%, rgba(255,255,255,0.1) 0%, transparent 50%);
    animation: ctaBg 8s ease infinite alternate;
}

.cta-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

.cta-text {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 2.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
    z-index: 1;
}

/* 响应式 - 板块适配 */
@media (max-width: 768px) {
    .key-features-grid {
        justify-content: center;
    }
    
    .key-feature-item {
        min-width: 150px;
        max-width: 180px;
    }
    
    .key-feature-item:hover {
        transform: translateY(-8px) scale(1.03);
    }
    
    .section-title h2 {
        font-size: 1.8rem;
    }
    
    .step-number {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
}

@media (max-width: 576px) {
    .key-feature-item {
        min-width: 130px;
        max-width: 150px;
        padding: 1.5rem 1rem;
    }
    
    .key-feature-icon {
        width: 50px;
        height: 50px;
    }
    
    .key-feature-icon i {
        font-size: 1.3rem;
    }
    
    .service-grid {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .step-number {
        width: 50px;
        height: 50px;
        font-size: 1.3rem;
    }
    
    .step-title {
        font-size: 1.1rem;
    }
    
    .cta-box {
        padding: 3rem 1.5rem;
    }
    
    .cta-title {
        font-size: 1.6rem;
    }
    
    .cta-text {
        font-size: 1rem;
    }
}