.fa-icon-circle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 56px;
        height: 56px;
        border-radius: 50%;
        background: linear-gradient(135deg, #ffe5e5 0%, #ff6b6b 100%); /* PPT小助手主题色 */
        color: #d63031; /* PPT小助手主题色 */
        font-size: 2rem;
        box-shadow: 0 2px 8px #ffe5e5; /* PPT小助手主题色 */
        margin-bottom: 0.5rem;
    }
    .page-banner-container {
        background: linear-gradient(120deg, #ffe5e5 0%, #ff6b6b 100%) !important; /* Banner背景色 */
    }
    .feature-card:hover {
        box-shadow: 0 8px 32px #ffe5e5 !important; /* 卡片悬停阴影颜色 */
    }
    .feature-icon {
        font-size: 2.5rem;
        margin-bottom: 1rem;
        color: #ff6b6b;
    }
    .benefit-card {
        padding: 2rem;
        border-radius: 12px;
        background: #fff;
        box-shadow: 0 4px 16px rgba(0,0,0,0.05);
        height: 100%;
        transition: all 0.3s ease;
    }
    .benefit-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 8px 24px rgba(255, 107, 107, 0.15);
    }
    .workflow-step {
        position: relative;
        padding: 2rem;
        border-radius: 12px;
        background: #fff;
        box-shadow: 0 4px 16px rgba(0,0,0,0.05);
        margin-bottom: 2rem;
    }
    .workflow-step:after {
        content: '';
        position: absolute;
        bottom: -20px;
        left: 50%;
        transform: translateX(-50%);
        width: 2px;
        height: 20px;
        background: #ff6b6b;
        display: none;
    }
    .workflow-step:last-child:after {
        display: none;
    }
    @media (max-width: 768px) {
        .workflow-step:after {
            display: block;
        }
    }
    .step-number {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: #ff6b6b;
        color: #fff;
        font-weight: bold;
        margin-bottom: 1rem;
    }
    .testimonial-card {
        padding: 2rem;
        border-radius: 12px;
        background: #fff;
        box-shadow: 0 4px 16px rgba(0,0,0,0.05);
        margin: 1rem;
    }
    .testimonial-avatar {
        width: 60px;
        height: 60px;
        border-radius: 50%;
        overflow: hidden;
        margin-right: 1rem;
    }
    .testimonial-rating {
        color: #ffc107;
        margin-bottom: 0.5rem;
    }
    .demo-img {
        border-radius: 12px;
        box-shadow: 0 8px 24px rgba(0,0,0,0.1);
        transition: all 0.3s ease;
    }
    .demo-img:hover {
        transform: scale(1.02);
        box-shadow: 0 12px 32px rgba(255, 107, 107, 0.2);
    }
    /* PPT功能卡片样式 */
    .feature-card-ppt {
        background: #fff;
        border-radius: 16px;
        padding: 2.5rem 1.5rem;
        box-shadow: 0 4px 20px rgba(255, 107, 107, 0.08);
        transition: all 0.3s ease;
        border: 1px solid rgba(255, 107, 107, 0.1);
        position: relative;
        overflow: hidden;
    }

    .feature-card-ppt::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 4px;
        background: linear-gradient(90deg, #ff6b6b 0%, #ff8e8e 100%);
    }

    .feature-card-ppt:hover {
        transform: translateY(-8px);
        box-shadow: 0 12px 40px rgba(255, 107, 107, 0.15);
        border-color: rgba(255, 107, 107, 0.2);
    }

    .feature-icon-ppt {
        width: 80px;
        height: 80px;
        margin: 0 auto 1.5rem;
        background: linear-gradient(135deg, #ffe5e5 0%, #ff6b6b 100%);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        position: relative;
        box-shadow: 0 4px 16px rgba(255, 107, 107, 0.2);
    }

    .feature-icon-ppt i {
        font-size: 2.2rem;
        color: #d63031;
        z-index: 2;
    }

    .feature-icon-ppt::after {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 60px;
        height: 60px;
        background: rgba(255, 255, 255, 0.3);
        border-radius: 50%;
        z-index: 1;
    }

    .feature-card-ppt h4 {
        color: #333;
        font-weight: 600;
        font-size: 1.25rem;
        margin-bottom: 1rem;
        line-height: 1.4;
    }

    .feature-card-ppt p {
        color: #666;
        font-size: 0.95rem;
        line-height: 1.6;
        margin-bottom: 0;
    }

    .feature-card-ppt:hover .feature-icon-ppt {
        transform: scale(1.1);
        box-shadow: 0 6px 24px rgba(255, 107, 107, 0.3);
    }

    .feature-card-ppt:hover h4 {
        color: #ff6b6b;
    }

    /* 响应式优化 */
    .feature-card-ppt {
        padding: 2rem 1.25rem;
    }

    .feature-icon-ppt {
        width: 70px;
        height: 70px;
    }

    .feature-icon-ppt i {
        font-size: 2rem;
    }
        /* PPT Assistant 主题色彩 */
        :root {
        --primary-color: #ff6b6b;
        --primary-light: #ff8e8e;
        --primary-dark: #e55555;
        --secondary-color: #f8fafd;
        --text-dark: #2c3e50;
        --text-muted: #6c757d;
    }
    
    /* 修复section标题间距 */
    .section-title {
        margin-bottom: 3rem !important;
    }
    
    .section-title h2 {
        margin-bottom: 1rem;
    }
    
    .section-title .lead {
        margin-bottom: 0;
    }
    
    /* 确保各个section之间有适当间距 */
    .section {
        padding: 4rem 0;
    }
    
    /* FAQ section特殊处理 */
    .faq-section .section-title {
        margin-bottom: 3.5rem !important;
    }
    
    /* 应用场景section标题间距 */
    .section.bg-light .section-title {
        margin-bottom: 3rem !important;
    }