.page-tintuc {
    background-color: #F4F7FB; /* Background color from custom配色 */
    color: #1F2D3D; /* Text Main color */
}

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

/* Hero Section */
.page-tintuc__hero-section {
    position: relative;
    overflow: hidden;
    background-color: #2F6BFF; /* Primary color as background for hero section */
    padding-bottom: 40px; /* Space below content */
    display: flex;
    flex-direction: column; /* Ensure image is above content */
    align-items: center;
    justify-content: center;
    text-align: center;
}

.page-tintuc__hero-image-wrapper {
    width: 100%;
    max-height: 600px; /* Constrain hero image height */
    overflow: hidden;
}

.page-tintuc__hero-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    min-height: 200px; /* Min size for all images */
}

.page-tintuc__hero-content {
    padding: 10px 20px 0; /* Small top padding, no large header offset */
    max-width: 900px;
    color: #FFFFFF; /* White text on dark background */
    z-index: 1; /* Ensure content is above any subtle background effects */
}

.page-tintuc__main-title {
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 15px;
    color: #FFFFFF; /* White for H1 */
    /* No fixed font-size, rely on responsive scaling */
}

.page-tintuc__description {
    font-size: 1.1em;
    line-height: 1.6;
    margin-bottom: 30px;
    color: #D6E2FF; /* Slightly lighter white for description */
}

.page-tintuc__cta-button {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 8px;
    background: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%); /* Button gradient */
    color: #FFFFFF;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1em;
    transition: background-color 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-tintuc__cta-button:hover {
    background: linear-gradient(180deg, #2F6BFF 0%, #4A8BFF 100%); /* Slightly altered gradient on hover */
}

/* News List Section */
.page-tintuc__news-list-section {
    padding: 60px 0;
    background-color: #F4F7FB;
}

.page-tintuc__section-title {
    font-size: 2.2em;
    font-weight: 700;
    color: #1F2D3D; /* Text Main color */
    text-align: center;
    margin-bottom: 20px;
}

.page-tintuc__section-description {
    font-size: 1.1em;
    color: #1F2D3D; /* Text Main color */
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
    line-height: 1.6;
}

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

.page-tintuc__news-card {
    background-color: #FFFFFF; /* Card BG color */
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #D6E2FF; /* Border color */
}

.page-tintuc__news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.page-tintuc__news-card-image-wrapper {
    width: 100%;
    height: 225px; /* Fixed height for consistent card images */
    overflow: hidden;
}

.page-tintuc__news-card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    min-width: 200px; /* Ensure min size for content images */
    min-height: 200px; /* Ensure min size for content images */
    transition: transform 0.3s ease;
}

.page-tintuc__news-card:hover .page-tintuc__news-card-image {
    transform: scale(1.05);
}

.page-tintuc__news-card-content {
    padding: 20px;
}

.page-tintuc__news-card-title {
    font-size: 1.3em;
    font-weight: 600;
    margin-bottom: 10px;
    line-height: 1.4;
}

.page-tintuc__news-card-title a {
    color: #1F2D3D; /* Text Main color for links */
    text-decoration: none;
    transition: color 0.3s ease;
}

.page-tintuc__news-card-title a:hover {
    color: #2F6BFF; /* Primary color on hover */
}

.page-tintuc__news-card-meta {
    font-size: 0.9em;
    color: #6FA3FF; /* Auxiliary color for meta info */
    margin-bottom: 15px;
}

.page-tintuc__news-card-excerpt {
    font-size: 1em;
    color: #1F2D3D; /* Text Main color */
    line-height: 1.6;
    margin-bottom: 20px;
}

.page-tintuc__news-card-link {
    display: inline-block;
    color: #2F6BFF; /* Primary color */
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.page-tintuc__news-card-link:hover {
    color: #4A8BFF; /* Lighter primary color on hover */
    text-decoration: underline;
}

.page-tintuc__view-all {
    text-align: center;
    margin-top: 50px;
}

.page-tintuc__view-all-button {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 8px;
    background: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%); /* Button gradient */
    color: #FFFFFF;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1em;
    transition: background-color 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-tintuc__view-all-button:hover {
    background: linear-gradient(180deg, #2F6BFF 0%, #4A8BFF 100%);
}

/* Promotion Section */
.page-tintuc__promo-section {
    background-color: #2F6BFF; /* Primary color background */
    padding: 80px 20px;
    text-align: center;
    color: #FFFFFF;
}

.page-tintuc__promo-title {
    font-size: 2.5em;
    font-weight: 700;
    margin-bottom: 20px;
    color: #FFFFFF;
}

.page-tintuc__promo-description {
    font-size: 1.2em;
    line-height: 1.6;
    max-width: 800px;
    margin: 0 auto 40px;
    color: #D6E2FF;
}

.page-tintuc__promo-cta-button {
    display: inline-block;
    padding: 15px 40px;
    border-radius: 10px;
    background: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%); /* Button gradient */
    color: #FFFFFF;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.2em;
    transition: background-color 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

.page-tintuc__promo-cta-button:hover {
    background: linear-gradient(180deg, #2F6BFF 0%, #4A8BFF 100%);
}

/* Responsive adjustments */
@media (max-width: 1024px) {
    .page-tintuc__container {
        padding: 15px;
    }
    .page-tintuc__hero-content {
        padding: 10px 15px 0;
    }
    .page-tintuc__main-title {
        font-size: 2.5em;
    }
    .page-tintuc__section-title {
        font-size: 2em;
    }
    .page-tintuc__promo-title {
        font-size: 2em;
    }
}

@media (max-width: 768px) {
    .page-tintuc__hero-image {
        max-height: 400px;
    }
    .page-tintuc__main-title {
        font-size: 2em;
    }
    .page-tintuc__description {
        font-size: 1em;
    }
    .page-tintuc__cta-button {
        padding: 10px 25px;
        font-size: 1em;
    }
    .page-tintuc__news-grid {
        grid-template-columns: 1fr;
    }
    .page-tintuc__news-card-image-wrapper {
        height: auto; /* Allow image to scale */
    }
    .page-tintuc__news-card-image {
        max-width: 100%; /* Important for mobile overflow */
        height: auto; /* Important for mobile overflow */
    }
    .page-tintuc__section-title {
        font-size: 1.8em;
    }
    .page-tintuc__section-description {
        font-size: 0.95em;
    }
    .page-tintuc__promo-title {
        font-size: 1.8em;
    }
    .page-tintuc__promo-description {
        font-size: 1em;
    }
    .page-tintuc__promo-cta-button {
        padding: 12px 30px;
        font-size: 1.1em;
    }

    /* Content area images CSS dimensions lower bound check */
    /* Ensure all images within .page-tintuc are at least 200px wide */
    .page-tintuc img {
        min-width: 200px; /* Strict requirement for content images */
        min-height: 200px; /* Strict requirement for content images */
        max-width: 100%; /* Crucial for mobile overflow */
        height: auto; /* Crucial for mobile overflow */
    }
    .page-tintuc__news-card-image {
        width: 100%; /* Override fixed width for mobile */
        height: auto;
    }
}

@media (max-width: 480px) {
    .page-tintuc__main-title {
        font-size: 1.6em;
    }
    .page-tintuc__section-title {
        font-size: 1.5em;
    }
    .page-tintuc__promo-title {
        font-size: 1.6em;
    }
}