.about-section-enhanced {
        /* 使用与前面模块一致的蓝色渐变背景 */
        background: linear-gradient(135deg, #F5F7FA 0%, #ffffff 100%);
        /* 增大上下内边距，让背景“拉长” */
        padding: 120px 0;
        text-align: center;
        position: relative;
        overflow: hidden;
    }

    /* 可选的背景装饰，与前文呼应（不强制） */
    .about-section-enhanced::before {
        content: '';
        position: absolute;
        top: -60px;
        right: -60px;
        width: 200px;
        height: 200px;
        background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="%232a5caa" d="M256 0C114.6 0 0 114.6 0 256s114.6 256 256 256s256-114.6 256-256S397.4 0 256 0zM256 464c-114.9 0-208-93.1-208-208c0-72.3 37.3-135.8 93.7-172.3C165.8 125.7 210.4 176 256 176s90.2-50.3 114.3-92.3C426.7 120.2 464 183.7 464 256C464 370.9 370.9 464 256 464z"/></svg>');
        opacity: 0.06;
        pointer-events: none;
    }

    .about-section-enhanced .container {
        max-width: 800px;
        margin: 0 auto;
        padding: 0 20px;
        position: relative;
        z-index: 2;
    }

    .about-section-enhanced .section-title {
        font-family: 'Montserrat', sans-serif;
        font-size: 2rem;
        color: #2A5CAA;
        margin-bottom: 2rem;
    }

    .about-section-enhanced .section-title::after {
        content: '';
        display: block;
        width: 80px;
        height: 4px;
        background: #2A5CAA;
        margin: 15px auto 0;
    }

    .about-description {
        font-size: 1.05rem;
        color: #444;
        line-height: 1.8;
        margin-bottom: 1.5rem;
    }

    .about-description a {
        color: #2A5CAA;
        text-decoration: none;
        font-weight: 500;
    }

    .about-description a:hover {
        text-decoration: underline;
    }

    .certifications {
        margin: 40px 0;
    }

    .cert-title {
        font-size: 1.3rem;
        color: #2A5CAA;
        margin-bottom: 0.5rem;
    }

    .certifications p {
        font-size: 1rem;
        color: #555;
        line-height: 1.6;
    }

    .contact-button {
        display: inline-block;
        margin-top: 20px;
        padding: 15px 40px;
        background: #2A5CAA;
        color: white;
        border-radius: 30px;
        text-decoration: none;
        font-weight: 500;
        font-size: 1rem;
        transition: background 0.3s ease, transform 0.2s ease;
        box-shadow: 0 4px 14px rgba(42, 92, 170, 0.3);
    }

    .contact-button:hover {
        background: #4A7CC8;
        transform: translateY(-3px);
    }

    /* 响应式 */
    @media (max-width: 768px) {
        .about-section-enhanced {
            padding: 80px 0;
        }

        .about-section-enhanced .section-title {
            font-size: 1.7rem;
        }

        .about-description {
            font-size: 0.95rem;
        }
    }

    @media (max-width: 480px) {
        .about-section-enhanced {
            padding: 60px 0;
        }

        .contact-button {
            padding: 12px 30px;
            font-size: 0.9rem;
        }
    }