/* ========================================
   Font Awesome 图标样式调整
   ======================================== */

/* 功能图标 - 用于产品特色、功能列表等 */
.feature-icon i {
    font-size: 48px;
    color: #1890ff;
    transition: all 0.3s ease;
}

.feature-icon i:hover {
    transform: scale(1.1);
    color: #40a9ff;
}

/* 痛点图标 - 用于问题展示 */
.pain-icon i {
    font-size: 36px;
    color: #ff4d4f;
}

/* 解决方案图标 - 用于方案展示 */
.solution-icon i {
    font-size: 40px;
    color: #52c41a;
}

/* 步骤图标 - 用于流程步骤 */
.step-icon i {
    font-size: 32px;
    color: #722ed1;
}

/* 优势图标 - 用于优势展示 */
.advantage-icon i {
    font-size: 44px;
    color: #13c2c2;
}

/* 产品图标 - 用于产品卡片 */
.product-icon i {
    font-size: 50px;
    color: #fa8c16;
}

/* 工作流图标 - 用于工作流程 */
.workflow-step .step-icon i {
    font-size: 36px;
    color: #1890ff;
}

/* 特性图标 - 用于特性列表 */
.workflow-features .feature-icon i {
    font-size: 28px;
    color: #52c41a;
}

/* 通用图标容器样式 */
.feature-card .feature-icon,
.pain-point-card .pain-icon,
.solution-card .solution-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.feature-card .feature-icon i,
.pain-point-card .pain-icon i,
.solution-card .solution-icon i {
    color: #ffffff;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .feature-icon i {
        font-size: 36px;
    }

    .pain-icon i {
        font-size: 28px;
    }

    .solution-icon i {
        font-size: 32px;
    }

    .step-icon i {
        font-size: 24px;
    }

    .advantage-icon i {
        font-size: 32px;
    }

    .product-icon i {
        font-size: 38px;
    }
}

/* 图标动画效果 */
@keyframes iconPulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.feature-icon i.pulse {
    animation: iconPulse 2s ease-in-out infinite;
}

/* 图标旋转效果 */
@keyframes iconRotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.feature-icon i.rotate {
    animation: iconRotate 2s linear infinite;
}



/* 图标阴影效果 */
.feature-icon i.with-shadow {
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

/* 图标渐变背景（可选） */
.feature-icon.gradient-bg {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    padding: 20px;
}

.feature-icon.gradient-bg i {
    color: #ffffff;
}

/* 图标边框样式（可选） */
.feature-icon.with-border {
    border: 2px solid #1890ff;
    border-radius: 50%;
    padding: 15px;
}

/* 图标悬停效果增强 */
.feature-card:hover .feature-icon i {
    transform: scale(1.15) rotate(5deg);
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* 图标加载动画 */
@keyframes iconFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-icon i {
    animation: iconFadeIn 0.6s ease-out;
}

/* 延迟动画（用于列表项） */
.feature-card:nth-child(1) .feature-icon i { animation-delay: 0.1s; }
.feature-card:nth-child(2) .feature-icon i { animation-delay: 0.2s; }
.feature-card:nth-child(3) .feature-icon i { animation-delay: 0.3s; }
.feature-card:nth-child(4) .feature-icon i { animation-delay: 0.4s; }
.feature-card:nth-child(5) .feature-icon i { animation-delay: 0.5s; }
.feature-card:nth-child(6) .feature-icon i { animation-delay: 0.6s; }