:root {
    --primary-color: #2F6BFF;
    --secondary-color: #6FA3FF;
    --button-gradient: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
    --card-bg-color: #FFFFFF;
    --background-color-page: #F4F7FB;
    --text-main-color: #1F2D3D;
    --text-black-color: #000000;
    --border-color: #D6E2FF;
    --glow-color: #A5C4FF;
}

.page-tin-tuc {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-main-color);
    background-color: var(--background-color-page);
}

.page-tin-tuc__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 15px;
}

.page-tin-tuc__section-title {
    font-size: clamp(28px, 4vw, 36px);
    font-weight: 700;
    color: var(--text-main-color);
    text-align: center;
    margin-bottom: 15px;
}

.page-tin-tuc__section-subtitle {
    font-size: clamp(16px, 2vw, 18px);
    color: #555;
    text-align: center;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* HERO Section */
.page-tin-tuc__hero-section {
    position: relative;
    padding-top: 10px;
    margin-bottom: 40px;
    overflow: hidden;
}

.page-tin-tuc__hero-image {
    width: 100%;
    height: 500px;
    overflow: hidden;
    position: relative;
}

.page-tin-tuc__hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.page-tin-tuc__hero-content {
    max-width: 900px;
    margin: 30px auto 0;
    padding: 0 15px;
    text-align: center;
}

.page-tin-tuc__main-title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 15px;
    line-height: 1.2;
}

.page-tin-tuc__description {
    font-size: clamp(18px, 2.5vw, 20px);
    color: var(--text-main-color);
    max-width: 700px;
    margin: 0 auto 30px;
}

/* Latest News Section */
.page-tin-tuc__latest-news-section {
    background: var(--primary-color);
    color: #ffffff;
    padding: 60px 0;
}

.page-tin-tuc__latest-news-section .page-tin-tuc__section-title,
.page-tin-tuc__latest-news-section .page-tin-tuc__section-subtitle {
    color: #ffffff;
}

.page-tin-tuc__news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.page-tin-tuc__news-card {
    background: var(--card-bg-color);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-tin-tuc__news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.page-tin-tuc__news-link {
    text-decoration: none;
    display: block;
    color: var(--text-main-color);
}

.page-tin-tuc__news-thumbnail {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
}

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

.page-tin-tuc__news-card-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
    line-height: 1.3;
    color: var(--text-main-color);
}

.page-tin-tuc__news-date {
    font-size: 14px;
    color: #777;
    margin-bottom: 15px;
    display: block;
}

.page-tin-tuc__news-excerpt {
    font-size: 16px;
    color: #555;
}

/* About Us Summary Section */
.page-tin-tuc__about-us-summary {
    background-color: var(--background-color-page);
    padding: 60px 0;
    color: var(--text-main-color);
}

.page-tin-tuc__about-us-summary .page-tin-tuc__text-block p {
    margin-bottom: 20px;
    font-size: 17px;
    line-height: 1.7;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

/* FAQ Section */
.page-tin-tuc__faq-section {
    padding: 60px 0;
    background-color: var(--card-bg-color);
}

.page-tin-tuc__faq-list {
    max-width: 900px;
    margin: 0 auto;
}

details.page-tin-tuc__faq-item {
    margin-bottom: 15px;
    border-radius: 5px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    background: var(--card-bg-color);
}
details.page-tin-tuc__faq-item summary.page-tin-tuc__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 20px;
    cursor: pointer;
    user-select: none;
    list-style: none;
    transition: background-color 0.3s ease;
    color: var(--text-main-color);
}
details.page-tin-tuc__faq-item summary.page-tin-tuc__faq-question::-webkit-details-marker {
    display: none;
}
details.page-tin-tuc__faq-item summary.page-tin-tuc__faq-question:hover {
    background: #f5f5f5;
}
.page-tin-tuc__faq-qtext {
    flex: 1;
    font-size: 18px;
    font-weight: 600;
    line-height: 1.5;
    text-align: left;
}
.page-tin-tuc__faq-toggle {
    font-size: 24px;
    font-weight: bold;
    color: #666;
    flex-shrink: 0;
    margin-left: 15px;
    width: 28px;
    text-align: center;
}
details.page-tin-tuc__faq-item .page-tin-tuc__faq-answer {
    padding: 0 20px 20px;
    background: #f9f9f9;
    border-radius: 0 0 5px 5px;
    color: #333;
}
details.page-tin-tuc__faq-item .page-tin-tuc__faq-answer p {
    margin-bottom: 0;
}

/* CTA Section */
.page-tin-tuc__cta-section {
    background: var(--primary-color);
    color: #ffffff;
    padding: 60px 0;
    text-align: center;
}

.page-tin-tuc__cta-section .page-tin-tuc__section-title,
.page-tin-tuc__cta-section .page-tin-tuc__section-subtitle {
    color: #ffffff;
}

/* Buttons */
.page-tin-tuc__cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
}

.page-tin-tuc__btn-primary,
.page-tin-tuc__btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 30px;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    white-space: normal;
    word-wrap: break-word;
    box-sizing: border-box;
    max-width: 100%;
}

.page-tin-tuc__btn-primary {
    background: var(--button-gradient);
    color: #ffffff;
    border: none;
    box-shadow: 0 4px 10px rgba(47, 107, 255, 0.3);
}

.page-tin-tuc__btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(47, 107, 255, 0.4);
}

.page-tin-tuc__btn-secondary {
    background: #ffffff;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.page-tin-tuc__btn-secondary:hover {
    background: #f0f0f0;
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
}

/* Global image styles */
.page-tin-tuc img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .page-tin-tuc__news-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }

    .page-tin-tuc__hero-image {
        height: 400px;
    }
}

@media (max-width: 768px) {
    /* HERO Section */
    .page-tin-tuc__hero-section {
        padding-top: 10px;
        margin-bottom: 30px;
    }

    .page-tin-tuc__hero-image {
        height: auto;
        aspect-ratio: 16/9;
    }

    .page-tin-tuc__hero-image img {
        object-fit: contain !important;
        aspect-ratio: unset !important;
    }

    .page-tin-tuc__hero-content {
        margin-top: 20px;
    }

    .page-tin-tuc__main-title {
        font-size: clamp(28px, 8vw, 36px);
        margin-bottom: 10px;
    }

    .page-tin-tuc__description {
        font-size: clamp(16px, 4vw, 18px);
        margin-bottom: 20px;
    }

    /* Latest News Section */
    .page-tin-tuc__latest-news-section {
        padding: 40px 0;
        overflow-x: hidden;
    }

    .page-tin-tuc__news-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-bottom: 30px;
    }

    .page-tin-tuc__news-card-title {
        font-size: 18px;
    }

    .page-tin-tuc__news-excerpt {
        font-size: 15px;
    }

    /* About Us Summary Section */
    .page-tin-tuc__about-us-summary {
        padding: 40px 0;
    }

    .page-tin-tuc__about-us-summary .page-tin-tuc__text-block p {
        font-size: 16px;
    }

    /* FAQ Section */
    .page-tin-tuc__faq-section {
        padding: 40px 0;
    }

    details.page-tin-tuc__faq-item summary.page-tin-tuc__faq-question {
        padding: 15px;
    }
    .page-tin-tuc__faq-qtext {
        font-size: 16px;
    }
    .page-tin-tuc__faq-toggle {
        font-size: 20px;
        width: 24px;
    }
    details.page-tin-tuc__faq-item .page-tin-tuc__faq-answer {
        padding: 0 15px 15px;
    }
    details.page-tin-tuc__faq-item .page-tin-tuc__faq-answer p {
        font-size: 15px;
    }

    /* CTA Section */
    .page-tin-tuc__cta-section {
        padding: 40px 0;
    }

    .page-tin-tuc__cta-buttons {
        flex-direction: column;
        gap: 15px;
        margin-top: 30px;
        padding: 0 15px;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box;
    }

    .page-tin-tuc__btn-primary,
    .page-tin-tuc__btn-secondary {
        width: 100% !important;
        max-width: 100% !important;
        padding: 12px 20px;
        font-size: 16px;
    }

    /* General containers and images */
    .page-tin-tuc__container {
        padding: 15px;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }

    .page-tin-tuc img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }

    .page-tin-tuc__section-title {
        font-size: clamp(24px, 7vw, 32px);
    }
    .page-tin-tuc__section-subtitle {
        font-size: clamp(15px, 3.5vw, 16px);
    }
}