:root {
    --primary-color: #11A84E; /* Main */
    --secondary-color: #22C768; /* Auxiliary */
    --button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
    --bg-color-page: #08160F; /* Background */
    --card-bg-color: #11271B; /* Card BG */
    --text-main: #F2FFF6; /* Text Main */
    --text-secondary: #A7D9B8; /* Text Secondary */
    --border-color: #2E7A4E; /* Border */
    --glow-color: #57E38D; /* Glow */
    --gold-color: #F2C14E; /* Gold */
    --divider-color: #1E3A2A; /* Divider */
    --deep-green-color: #0A4B2C; /* Deep Green */

    /* Derived colors for contrast on light/dark backgrounds */
    --text-main-dark: #333333; /* For light backgrounds */
    --text-secondary-dark: #555555; /* For light backgrounds */
    --bg-color-light: #ffffff; /* Default light background for sections */
    --bg-color-dark: #08160F; /* Default dark background for sections */
}

.page-news {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-main); /* Sử dụng biến màu từ tùy chỉnh */
    background-color: var(--bg-color-page); /* Sử dụng biến màu nền từ tùy chỉnh */
}

/* Hero Section */
.page-news__hero-section {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column; /* Hình ảnh trên, nội dung dưới */
    align-items: center;
    padding: 60px 20px;
    padding-top: 10px; /* Nhỏ hơn so với body padding-top */
    background-color: var(--bg-color-dark); /* Màu nền đậm cho phần hero */
    color: var(--text-main);
}

.page-news__hero-image-wrapper {
    width: 100%;
    max-width: 1200px;
    margin-bottom: 30px; /* Khoảng cách giữa ảnh và nội dung */
}

.page-news__hero-image {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    min-width: 200px;
    min-height: 200px;
    filter: none;
}

.page-news__hero-content {
    text-align: center;
    max-width: 900px;
    width: 100%;
}

.page-news__main-title {
    font-size: clamp(2em, 4vw, 3.5em); /* H1 không cố định font-size lớn */
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--text-main);
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
}

.page-news__description {
    font-size: 1.1em;
    margin-bottom: 30px;
    color: var(--text-secondary);
}

.page-news__cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap; /* Cho phép xuống dòng trên mobile */
}

.page-news__btn-primary,
.page-news__btn-secondary {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    max-width: 100%; /* Đảm bảo nút không tràn */
    box-sizing: border-box;
    white-space: normal; /* Cho phép chữ xuống dòng */
    word-wrap: break-word; /* Ngắt từ nếu cần */
}

.page-news__btn-primary {
    background: var(--button-gradient); /* Màu nút tùy chỉnh */
    color: #ffffff;
    border: 2px solid transparent;
}

.page-news__btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
}

.page-news__btn-secondary {
    background: #ffffff;
    color: var(--primary-color); /* Màu chính làm chữ */
    border: 2px solid var(--primary-color);
}

.page-news__btn-secondary:hover {
    background: var(--primary-color);
    color: #ffffff;
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
}

/* Latest Articles Section */
.page-news__latest-articles {
    padding: 80px 20px;
    background-color: var(--bg-color-light); /* Màu nền sáng */
    color: var(--text-main-dark); /* Chữ màu tối trên nền sáng */
}

.page-news__container {
    max-width: 1200px;
    margin: 0 auto;
}

.page-news__section-title {
    font-size: 2.5em;
    font-weight: 700;
    text-align: center;
    margin-bottom: 15px;
    color: var(--text-main-dark); /* Màu chữ chính cho nền sáng */
}

.page-news__section-title--light {
    color: var(--text-main); /* Chữ sáng cho nền tối */
}

.page-news__section-description {
    font-size: 1.1em;
    text-align: center;
    margin-bottom: 50px;
    color: var(--text-secondary-dark); /* Màu chữ phụ cho nền sáng */
}

.page-news__article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.page-news__article-card {
    background-color: var(--card-bg-color); /* Màu nền card tùy chỉnh */
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    color: var(--text-main); /* Chữ sáng trên nền card tối */
}

.page-news__article-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.page-news__article-image-wrapper {
    width: 100%;
    height: 200px; /* Chiều cao cố định cho ảnh card */
    overflow: hidden;
}

.page-news__article-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    min-width: 200px;
    min-height: 200px;
    filter: none;
}

.page-news__article-content {
    padding: 25px;
}

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

.page-news__article-title a {
    color: var(--text-main); /* Chữ sáng */
    text-decoration: none;
    transition: color 0.3s ease;
}

.page-news__article-title a:hover {
    color: var(--gold-color); /* Hiệu ứng hover màu vàng */
}

.page-news__article-meta {
    font-size: 0.9em;
    color: var(--text-secondary); /* Chữ phụ sáng */
    margin-bottom: 15px;
}

.page-news__article-excerpt {
    font-size: 1em;
    color: var(--text-secondary); /* Chữ phụ sáng */
    margin-bottom: 20px;
}

.page-news__read-more {
    display: inline-block;
    color: var(--primary-color); /* Màu chính cho link đọc thêm */
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.page-news__read-more:hover {
    color: var(--gold-color);
}

.page-news__view-all-button {
    text-align: center;
    margin-top: 30px;
}

/* FAQ Section */
.page-news__faq-section {
    padding: 80px 20px;
    background-color: var(--deep-green-color); /* Màu nền xanh đậm tùy chỉnh */
    color: var(--text-main);
}

.page-news__faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.page-news__faq-item {
    background-color: var(--card-bg-color); /* Nền card đậm */
    border-radius: 10px;
    margin-bottom: 20px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
}

.page-news__faq-item summary {
    list-style: none; /* Ẩn marker mặc định */
}
.page-news__faq-item summary::-webkit-details-marker {
    display: none; /* Ẩn marker cho WebKit */
}

.page-news__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    font-size: 1.2em;
    font-weight: 600;
    cursor: pointer;
    background-color: var(--divider-color); /* Màu nền câu hỏi */
    color: var(--text-main);
    border-bottom: 1px solid var(--border-color); /* Viền dưới */
    transition: background-color 0.3s ease;
}

.page-news__faq-question:hover {
    background-color: rgba(46, 122, 78, 0.7); /* Hover nhẹ nhàng */
}

.page-news__faq-toggle {
    font-size: 1.5em;
    font-weight: 300;
    color: var(--glow-color); /* Màu sáng cho dấu +/- */
    margin-left: 15px;
}

.page-news__faq-answer {
    padding: 20px 25px;
    font-size: 1em;
    color: var(--text-secondary);
}

.page-news__faq-answer p {
    margin-bottom: 10px;
}

.page-news__text-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.page-news__text-link:hover {
    text-decoration: underline;
    color: var(--gold-color);
}

/* CTA Section */
.page-news__cta-section {
    padding: 80px 20px;
    background-color: var(--bg-color-light); /* Nền sáng */
    color: var(--text-main-dark);
    text-align: center;
}

.page-news__cta-box {
    background-color: var(--card-bg-color); /* Nền card đậm */
    padding: 50px;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    color: var(--text-main);
}

/* --- Responsive Design --- */

/* Tablet and smaller desktops */
@media (max-width: 1024px) {
    .page-news__hero-section {
        padding: 40px 15px;
    }

    .page-news__main-title {
        font-size: clamp(1.8em, 5vw, 3em);
    }

    .page-news__description {
        font-size: 1em;
    }

    .page-news__latest-articles,
    .page-news__faq-section,
    .page-news__cta-section {
        padding: 60px 15px;
    }

    .page-news__section-title {
        font-size: 2em;
    }

    .page-news__section-description {
        font-size: 1em;
        margin-bottom: 40px;
    }

    .page-news__article-image-wrapper {
        height: 180px;
    }

    .page-news__article-image {
        min-width: 200px;
        min-height: 200px;
    }

    .page-news__article-title {
        font-size: 1.2em;
    }

    .page-news__cta-box {
        padding: 40px;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .page-news {
        font-size: 16px;
        line-height: 1.6;
    }

    .page-news__hero-section {
        padding: 30px 15px;
        padding-top: 10px !important; /* body đã xử lý padding-top, đây là khoảng cách nhỏ */
    }

    .page-news__hero-image-wrapper {
        margin-bottom: 20px;
    }

    .page-news__main-title {
        font-size: clamp(1.5em, 6vw, 2.5em);
    }

    .page-news__description {
        font-size: 0.95em;
        margin-bottom: 25px;
    }

    .page-news__cta-buttons {
        flex-direction: column; /* Nút xếp dọc trên mobile */
        gap: 15px;
    }

    .page-news__btn-primary,
    .page-news__btn-secondary {
        width: 100% !important;
        max-width: 100% !important;
        padding: 12px 15px;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }

    .page-news__latest-articles,
    .page-news__faq-section,
    .page-news__cta-section {
        padding: 40px 15px;
    }

    .page-news__section-title {
        font-size: 1.8em;
    }

    .page-news__section-description {
        font-size: 0.9em;
        margin-bottom: 30px;
    }

    .page-news__article-grid {
        grid-template-columns: 1fr; /* Một cột trên mobile */
    }

    .page-news__article-image-wrapper {
        height: 160px;
    }

    .page-news__article-image {
        min-width: 200px;
        min-height: 200px;
    }

    .page-news__faq-question {
        font-size: 1.1em;
        padding: 15px 20px;
    }

    .page-news__faq-answer {
        padding: 15px 20px;
        font-size: 0.95em;
    }

    .page-news__cta-box {
        padding: 30px;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }

    /* Đảm bảo hình ảnh không tràn */
    .page-news img {
        max-width: 100% !important;
        height: auto !important;
        display: block !important;
        filter: none;
    }

    /* Đảm bảo các container chứa ảnh không tràn */
    .page-news__section,
    .page-news__card,
    .page-news__container,
    .page-news__hero-image-wrapper,
    .page-news__article-image-wrapper {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        overflow: hidden !important;
    }
    /* Đảm bảo video không tràn */
    .page-news video,
    .page-news__video {
      max-width: 100% !important;
      width: 100% !important;
      height: auto !important;
      display: block !important;
    }
    
    /* Video containers */
    .page-news__video-section,
    .page-news__video-container,
    .page-news__video-wrapper {
      max-width: 100% !important;
      width: 100% !important;
      box-sizing: border-box !important;
      padding-left: 15px;
      padding-right: 15px;
      overflow: hidden !important;
    }

    /* Ensure button containers are responsive */
    .page-news__cta-buttons,
    .page-news__button-group,
    .page-news__btn-container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        flex-wrap: wrap !important;
        gap: 10px;
    }
}