.page-blog-lich-su-va-phat-trien-xo-so-viet-nam {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #FFF6D6; /* Text Main */
    background: #0A0A0A; /* Background */
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__hero-banner {
    padding-top: 10px; /* Small top padding, assuming shared.css handles body padding-top */
    padding-bottom: 60px;
    background: #0A0A0A; /* Consistent dark background */
    text-align: center;
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__hero-content-wrapper {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 16px;
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__main-title {
    font-size: clamp(2.2rem, 4vw, 3.5rem);
    font-weight: 700;
    color: #F2C14E; /* Main brand color for title */
    margin-bottom: 20px;
    line-height: 1.2;
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__hero-description {
    font-size: 1.15rem;
    margin-bottom: 30px;
    color: #FFF6D6;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap; /* Allow wrapping on smaller screens */
    width: 100%; /* Important for mobile responsiveness */
    max-width: 100%; /* Important for mobile responsiveness */
    box-sizing: border-box; /* Important for mobile responsiveness */
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__btn-primary,
.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__btn-secondary {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    cursor: pointer;
    text-align: center;
    max-width: 100%; /* Ensure buttons don't overflow */
    box-sizing: border-box; /* Include padding/border in width */
    white-space: normal; /* Allow text to wrap */
    word-wrap: break-word; /* Break long words */
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__btn-primary {
    background: linear-gradient(180deg, #FFD86A 0%, #DDA11D 100%); /* Button gradient */
    color: #111111; /* Dark text for contrast on bright button */
    border: none;
    box-shadow: 0 4px 15px rgba(242, 193, 78, 0.4);
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(242, 193, 78, 0.6);
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__btn-secondary {
    background: transparent;
    color: #F2C14E; /* Main brand color for text */
    border: 2px solid #F2C14E; /* Border color */
    box-shadow: 0 2px 10px rgba(242, 193, 78, 0.2);
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__btn-secondary:hover {
    background: rgba(242, 193, 78, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(242, 193, 78, 0.4);
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__btn-small {
    padding: 10px 20px;
    font-size: 0.9rem;
    border-radius: 5px;
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__content-area {
    background: #0A0A0A; /* Background */
    padding: 60px 0;
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 16px;
    width: 100%;
    box-sizing: border-box;
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__article {
    background: #111111; /* Card BG */
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
    border: 1px solid #3A2A12; /* Border color */
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__article p {
    margin-bottom: 1.2em;
    font-size: 1.05rem;
    color: #FFF6D6; /* Text Main */
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__section-title {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    color: #FFD36B; /* Auxiliary color for section titles */
    margin-top: 40px;
    margin-bottom: 25px;
    font-weight: 700;
    line-height: 1.3;
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__sub-section-title {
    font-size: clamp(1.4rem, 2.5vw, 2rem);
    color: #F2C14E; /* Main brand color for sub-section titles */
    margin-top: 30px;
    margin-bottom: 20px;
    font-weight: 600;
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__image-wrapper {
    margin: 30px 0;
    text-align: center;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    border: 1px solid #3A2A12; /* Border color */
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__article-image {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 8px; /* For consistency with wrapper */
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__list {
    list-style: disc inside;
    margin-left: 20px;
    margin-bottom: 20px;
    color: #FFF6D6; /* Text Main */
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__list li {
    margin-bottom: 10px;
    font-size: 1.05rem;
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__list strong {
    color: #FFD36B; /* Auxiliary color for strong text */
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__faq-list {
    margin-top: 40px;
    background: #111111; /* Card BG */
    border-radius: 12px;
    padding: 30px;
    border: 1px solid #3A2A12; /* Border color */
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__faq-item {
    margin-bottom: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 15px;
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__faq-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: 0;
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 1.1rem;
    color: #F2C14E; /* Main brand color */
    cursor: pointer;
    padding: 10px 0;
    list-style: none; /* For details/summary */
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__faq-question::-webkit-details-marker {
    display: none;
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__faq-toggle {
    font-size: 1.5rem;
    line-height: 1;
    transition: transform 0.3s ease;
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__faq-item[open] .page-blog-lich-su-va-phat-trien-xo-so-viet-nam__faq-toggle {
    transform: rotate(45deg);
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__faq-answer {
    padding: 10px 0 5px;
    font-size: 1rem;
    color: #FFF6D6; /* Text Main */
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__faq-item[open] .page-blog-lich-su-va-phat-trien-xo-so-viet-nam__faq-answer {
    max-height: 500px; /* Sufficiently large to show content */
    transition: max-height 0.5s ease-in;
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__faq-answer-text p {
    margin-bottom: 15px;
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__related-posts {
    background: #0A0A0A; /* Background */
    padding: 60px 0;
    text-align: center;
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__post-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__post-card {
    background: #111111; /* Card BG */
    border-radius: 12px;
    overflow: hidden;
    text-decoration: none;
    color: #FFF6D6; /* Text Main */
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #3A2A12; /* Border color */
    display: flex;
    flex-direction: column;
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__post-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__post-image {
    width: 100%;
    height: 200px; /* Fixed height for consistency */
    object-fit: cover;
    display: block;
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__post-content {
    padding: 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__post-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #F2C14E; /* Main brand color */
    margin-bottom: 10px;
    line-height: 1.3;
}

.page-blog-lich-su-va-phat-trien-xo-so-viet-nam__post-meta {
    font-size: 0.9rem;
    color: rgba(255, 246, 214, 0.7); /* Lighter Text Main */
    margin-top: auto; /* Push to bottom */
}

/* --- Responsive Styles (Mobile) --- */
@media (max-width: 768px) {
    /* HERO Section */
    .page-blog-lich-su-va-phat-trien-xo-so-viet-nam__hero-banner {
        padding-top: 10px !important; /* Small top padding */
        padding-bottom: 40px;
    }

    .page-blog-lich-su-va-phat-trien-xo-so-viet-nam__hero-content-wrapper {
        padding: 30px 15px;
    }

    .page-blog-lich-su-va-phat-trien-xo-so-viet-nam__main-title {
        font-size: 2.2rem;
        margin-bottom: 15px;
    }

    .page-blog-lich-su-va-phat-trien-xo-so-viet-nam__hero-description {
        font-size: 1rem;
        margin-bottom: 25px;
    }

    .page-blog-lich-su-va-phat-trien-xo-so-viet-nam__cta-buttons {
        flex-direction: column; /* Stack buttons vertically */
        gap: 15px;
        padding: 0 15px; /* Add padding to container */
    }

    .page-blog-lich-su-va-phat-trien-xo-so-viet-nam__btn-primary,
    .page-blog-lich-su-va-phat-trien-xo-so-viet-nam__btn-secondary {
        width: 100% !important; /* Full width for buttons */
        max-width: 100% !important;
        padding: 12px 20px;
        font-size: 1rem;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }

    /* Content Area */
    .page-blog-lich-su-va-phat-trien-xo-so-viet-nam__content-area {
        padding: 40px 0;
    }

    .page-blog-lich-su-va-phat-trien-xo-so-viet-nam__container {
        padding: 0 15px;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        overflow: hidden !important; /* Prevent horizontal scroll */
    }

    .page-blog-lich-su-va-phat-trien-xo-so-viet-nam__article {
        padding: 25px 20px;
    }

    .page-blog-lich-su-va-phat-trien-xo-so-viet-nam__article p,
    .page-blog-lich-su-va-phat-trien-xo-so-viet-nam__list li {
        font-size: 0.95rem;
    }

    .page-blog-lich-su-va-phat-trien-xo-so-viet-nam__section-title {
        font-size: 1.8rem;
        margin-top: 30px;
        margin-bottom: 20px;
    }

    .page-blog-lich-su-va-phat-trien-xo-so-viet-nam__sub-section-title {
        font-size: 1.4rem;
        margin-top: 25px;
        margin-bottom: 15px;
    }

    /* Images */
    .page-blog-lich-su-va-phat-trien-xo-so-viet-nam img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
        box-sizing: border-box !important;
    }

    /* FAQ Section */
    .page-blog-lich-su-va-phat-trien-xo-so-viet-nam__faq-list {
        padding: 20px;
    }

    .page-blog-lich-su-va-phat-trien-xo-so-viet-nam__faq-question {
        font-size: 1rem;
        padding: 8px 0;
    }

    .page-blog-lich-su-va-phat-trien-xo-so-viet-nam__faq-answer {
        font-size: 0.9rem;
    }

    /* Related Posts Section */
    .page-blog-lich-su-va-phat-trien-xo-so-viet-nam__related-posts {
        padding: 40px 0;
    }

    .page-blog-lich-su-va-phat-trien-xo-so-viet-nam__post-grid {
        grid-template-columns: 1fr; /* Single column for mobile */
        gap: 20px;
        margin-top: 30px;
    }

    .page-blog-lich-su-va-phat-trien-xo-so-viet-nam__post-image {
        height: 180px; /* Slightly smaller height for mobile cards */
    }

    .page-blog-lich-su-va-phat-trien-xo-so-viet-nam__post-title {
        font-size: 1.1rem;
    }
}