.page-about__hero-section {
    position: relative;
    width: 100%;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding-top: 10px; /* Nhỏ hơn so với header offset */
    padding-bottom: 50px;
    background-color: #F4F7FB;
}

.page-about__hero-image {
    width: 100%;
    height: 600px;
    object-fit: cover;
    display: block;
}

.page-about__hero-content {
    max-width: 900px;
    text-align: center;
    padding: 20px;
    margin-top: 30px;
    position: relative;
    z-index: 1;
}

.page-about__main-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    color: #1F2D3D;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.page-about__hero-description {
    font-size: 1.1rem;
    color: #1F2D3D;
    line-height: 1.6;
    margin-bottom: 30px;
}

.page-about__btn-primary {
    display: inline-block;
    background: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
    color: #ffffff;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(47, 107, 255, 0.4);
    border: none;
}

.page-about__btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(47, 107, 255, 0.6);
}

.page-about__section {
    padding: 60px 0;
    background-color: #F4F7FB;
}

.page-about__introduction {
    padding-top: 40px;
}

.page-about__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.page-about__section-title {
    font-size: 2.5rem;
    color: #1F2D3D;
    text-align: center;
    margin-bottom: 40px;
    font-weight: 700;
    position: relative;
}

.page-about__section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #2F6BFF 0%, #6FA3FF 100%);
    margin: 15px auto 0;
    border-radius: 2px;
}

.page-about__text-block {
    font-size: 1.05rem;
    line-height: 1.7;
    color: #1F2D3D;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px;
}

.page-about__feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.page-about__feature-item {
    background-color: #ffffff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-about__feature-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}

.page-about__feature-image {
    width: 100%;
    height: 250px; /* Đảm bảo kích thước tối thiểu */
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 25px;
}

.page-about__feature-title {
    font-size: 1.6rem;
    color: #2F6BFF;
    margin-bottom: 15px;
    font-weight: 600;
}

.page-about__feature-description {
    font-size: 1rem;
    color: #1F2D3D;
    line-height: 1.6;
}

.page-about__values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.page-about__value-item {
    background-color: #ffffff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    text-align: center;
}

.page-about__value-title {
    font-size: 1.8rem;
    color: #1F2D3D;
    margin-bottom: 15px;
    font-weight: 600;
}

.page-about__value-description {
    font-size: 1rem;
    color: #1F2D3D;
    line-height: 1.6;
}

.page-about__commitment-list {
    list-style: none;
    padding: 0;
    max-width: 800px;
    margin: 0 auto 50px;
}

.page-about__commitment-item {
    font-size: 1.1rem;
    color: #1F2D3D;
    line-height: 1.8;
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
}

.page-about__commitment-item span {
    color: #2F6BFF;
    font-weight: 700;
    margin-right: 10px;
    font-size: 1.3em;
}

.page-about__cta-buttons {
    text-align: center;
    margin-top: 40px;
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.page-about__btn-secondary {
    display: inline-block;
    background-color: #ffffff;
    color: #2F6BFF;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    border: 2px solid #2F6BFF;
}

.page-about__btn-secondary:hover {
    background-color: #2F6BFF;
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(47, 107, 255, 0.2);
}

/* Responsive styles */
@media (max-width: 768px) {
    .page-about__hero-section {
        padding-top: 10px !important; /* Đảm bảo không bị che bởi header */
        padding-bottom: 30px;
    }

    .page-about__hero-image {
        height: 300px;
    }

    .page-about__main-title {
        font-size: 2rem;
        margin-bottom: 15px;
    }

    .page-about__hero-description {
        font-size: 1rem;
        margin-bottom: 20px;
    }

    .page-about__btn-primary,
    .page-about__btn-secondary {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
        padding-left: 15px;
        padding-right: 15px;
    }

    .page-about__cta-buttons {
        flex-direction: column !important;
        gap: 15px;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }

    .page-about__section {
        padding: 40px 0;
    }

    .page-about__section-title {
        font-size: 2rem;
        margin-bottom: 30px;
    }

    .page-about__text-block {
        font-size: 0.95rem;
        margin-bottom: 40px;
    }

    .page-about__feature-grid,
    .page-about__values-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .page-about__feature-item,
    .page-about__value-item {
        padding: 25px;
    }

    .page-about__feature-title {
        font-size: 1.4rem;
    }

    .page-about__value-title {
        font-size: 1.6rem;
    }

    .page-about__commitment-item {
        font-size: 1rem;
        margin-bottom: 10px;
        padding: 0 10px;
    }

    .page-about img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block;
    }

    .page-about__container,
    .page-about__section,
    .page-about__feature-item,
    .page-about__value-item {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }
}