/* Biến màu */
:root {
    --primary-color: #2F6BFF;
    --secondary-color: #6FA3FF;
    --text-main-color: #1F2D3D;
    --custom-black: #000000;
    --card-bg-color: #FFFFFF;
    --background-color: #F4F7FB;
    --border-color: #D6E2FF;
    --glow-color: #A5C4FF;
    --button-gradient: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
    --header-offset: 120px; /* Giá trị mặc định, sẽ được ghi đè bởi shared.css */
}

/* Đảm bảo khoảng cách cho fixed header, nếu shared.css không cung cấp */
/* body { padding-top: var(--header-offset); } */

.page-news {
    font-family: 'Arial', sans-serif;
    color: var(--text-main-color); /* Màu chữ chính cho nền sáng */
    background-color: var(--background-color);
    line-height: 1.6;
    padding-top: 10px; /* Nhẹ nhàng cho phần đầu tiên của trang */
}

.page-news__section {
    padding: 40px 0;
    margin-bottom: 20px;
}

.page-news__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
    box-sizing: border-box;
}

.page-news__section-title {
    font-size: 32px;
    color: var(--text-main-color);
    text-align: center;
    margin-bottom: 30px;
    font-weight: 700;
}

.page-news__section-description {
    font-size: 18px;
    color: var(--text-main-color);
    text-align: center;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* HERO Section */
.page-news__hero-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 0 60px;
    background-color: var(--card-bg-color);
    border-radius: 10px;
    margin: 20px auto;
    max-width: 1200px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.page-news__hero-image-wrapper {
    width: 100%;
    max-height: 450px;
    overflow: hidden;
    border-radius: 10px;
    margin-bottom: 30px;
}

.page-news__hero-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

.page-news__hero-content {
    text-align: center;
    max-width: 900px;
    padding: 0 20px;
}

.page-news__main-title {
    font-size: clamp(28px, 4vw, 48px); /* Sử dụng clamp cho H1 */
    color: var(--primary-color);
    margin-bottom: 20px;
    font-weight: 800;
    line-height: 1.2;
}

.page-news__intro-text {
    font-size: 18px;
    color: var(--text-main-color);
    margin-bottom: 30px;
}

/* CTA Button */
.page-news__cta-button,
.page-news__btn-primary,
.page-news__btn-secondary,
.page-news__view-all-button,
.page-news__read-more,
.page-news__learn-more-button {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    white-space: normal;
    word-wrap: break-word;
    max-width: 100%;
    box-sizing: border-box;
}

.page-news__cta-button,
.page-news__btn-primary {
    background: var(--button-gradient);
    color: #FFFFFF;
    border: 2px solid transparent;
}

.page-news__cta-button:hover,
.page-news__btn-primary:hover {
    background: linear-gradient(180deg, #2F6BFF 0%, #4A8BFF 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(47, 107, 255, 0.3);
}

.page-news__btn-secondary {
    background: var(--card-bg-color);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    margin-left: 15px;
}

.page-news__btn-secondary:hover {
    background: var(--primary-color);
    color: var(--card-bg-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(47, 107, 255, 0.3);
}

/* Latest Articles */
.page-news__latest-articles {
    background-color: var(--background-color);
}

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

.page-news__article-card {
    background-color: var(--card-bg-color);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.page-news__article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.page-news__article-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.page-news__article-content {
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.page-news__article-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.4;
}

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

.page-news__article-title a:hover {
    color: var(--primary-color);
}

.page-news__article-meta {
    font-size: 14px;
    color: #666;
    margin-bottom: 15px;
}

.page-news__article-excerpt {
    font-size: 16px;
    color: var(--text-main-color);
    margin-bottom: 20px;
    flex-grow: 1;
}

.page-news__read-more {
    background: var(--primary-color);
    color: #FFFFFF;
    padding: 8px 18px;
    border-radius: 5px;
    font-size: 14px;
    align-self: flex-start;
}

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

.page-news__view-all-wrapper {
    text-align: center;
    margin-top: 40px;
}

.page-news__view-all-button {
    background: var(--button-gradient);
    color: #FFFFFF;
    padding: 15px 35px;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 700;
}

.page-news__view-all-button:hover {
    background: linear-gradient(180deg, #2F6BFF 0%, #4A8BFF 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(47, 107, 255, 0.3);
}

/* Categories Section */
.page-news__dark-section {
    background-color: var(--primary-color);
    color: #FFFFFF;
}

.page-news__dark-section .page-news__section-title,
.page-news__dark-section .page-news__section-description {
    color: #FFFFFF;
}

.page-news__category-list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
}

.page-news__category-item a {
    display: block;
    background-color: rgba(255, 255, 255, 0.15);
    color: #FFFFFF;
    padding: 10px 20px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 500;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.page-news__category-item a:hover {
    background-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
}

/* About Us Section */
.page-news__about-us {
    background-color: var(--card-bg-color);
}

.page-news__about-content {
    display: flex;
    align-items: center;
    gap: 40px;
}

.page-news__about-text {
    flex: 1;
}

.page-news__about-text p {
    font-size: 16px;
    color: var(--text-main-color);
    margin-bottom: 15px;
}

.page-news__learn-more-button {
    background: var(--primary-color);
    color: #FFFFFF;
    padding: 12px 25px;
    border-radius: 5px;
    font-weight: 600;
    margin-top: 15px;
}

.page-news__learn-more-button:hover {
    background: var(--secondary-color);
}

.page-news__about-image-wrapper {
    flex: 1;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-news__about-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

/* CTA Banner */
.page-news__cta-banner {
    background-color: var(--primary-color);
    color: #FFFFFF;
    text-align: center;
    padding: 60px 0;
}

.page-news__cta-title {
    font-size: 36px;
    color: #FFFFFF;
    margin-bottom: 20px;
    font-weight: 700;
}

.page-news__cta-description {
    font-size: 18px;
    color: #FFFFFF;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page-news__cta-buttons-group {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

/* FAQ Section */
details.page-news__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  border: 1px solid var(--border-color);
  overflow: hidden;
  background: var(--card-bg-color);
  box-shadow: 0 1px 5px rgba(0,0,0,0.05);
}
details.page-news__faq-item summary.page-news__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;
}
details.page-news__faq-item summary.page-news__faq-question::-webkit-details-marker {
  display: none;
}
details.page-news__faq-item summary.page-news__faq-question:hover {
  background: #f5f5f5;
}
.page-news__faq-qtext {
  flex: 1;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: var(--text-main-color);
}
.page-news__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: var(--primary-color);
  flex-shrink: 0;
  margin-left: 15px;
  width: 28px;
  text-align: center;
}
details.page-news__faq-item .page-news__faq-answer {
  padding: 0 20px 20px;
  background: #f9f9f9;
  border-radius: 0 0 5px 5px;
  color: var(--text-main-color);
}
details.page-news__faq-item .page-news__faq-answer p {
    margin-bottom: 0;
}

/* Responsive Styles */
@media (max-width: 1023px) {
    .page-news__hero-section {
        margin: 10px auto;
        padding: 15px 0 40px;
    }
    .page-news__hero-image-wrapper {
        max-height: 350px;
    }
    .page-news__section {
        padding: 30px 0;
    }
    .page-news__section-title {
        font-size: 28px;
        margin-bottom: 25px;
    }
    .page-news__about-content {
        flex-direction: column;
    }
    .page-news__about-image-wrapper {
        order: -1; /* Đặt ảnh lên trên trong mobile */
        margin-bottom: 20px;
    }
    .page-news__cta-title {
        font-size: 30px;
    }
}

@media (max-width: 768px) {
    .page-news {
        font-size: 16px;
        line-height: 1.6;
        padding-top: 0;
    }
    .page-news__container {
        padding: 0 10px;
    }
    .page-news__section {
        padding: 20px 0;
        margin-bottom: 10px;
    }
    .page-news__section-title {
        font-size: 24px;
        margin-bottom: 20px;
    }
    .page-news__hero-section {
        padding: 10px 0 30px;
        margin: 0;
        border-radius: 0;
        box-shadow: none;
    }
    .page-news__hero-image-wrapper {
        max-height: 250px;
        margin-bottom: 20px;
        border-radius: 0;
    }
    .page-news__main-title {
        font-size: 24px;
        margin-bottom: 15px;
    }
    .page-news__intro-text {
        font-size: 16px;
        margin-bottom: 20px;
    }
    /* Mobile image and container adaptation */
    .page-news img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }
    .page-news__hero-image-wrapper,
    .page-news__article-image,
    .page-news__about-image-wrapper {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
    .page-news__articles-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .page-news__article-image {
        height: 180px;
    }
    .page-news__article-title {
        font-size: 18px;
    }
    .page-news__article-excerpt {
        font-size: 15px;
    }
    .page-news__view-all-button {
        padding: 12px 25px;
        font-size: 16px;
    }
    .page-news__category-list {
        flex-direction: column;
        align-items: center;
    }
    .page-news__category-item a {
        width: 100%;
        text-align: center;
        max-width: 250px;
    }
    .page-news__about-content {
        gap: 20px;
    }
    .page-news__cta-banner {
        padding: 40px 0;
    }
    .page-news__cta-title {
        font-size: 26px;
    }
    .page-news__cta-description {
        font-size: 16px;
    }
    .page-news__cta-buttons-group {
        flex-direction: column;
        gap: 15px;
    }
    .page-news__cta-button,
    .page-news__btn-primary,
    .page-news__btn-secondary,
    .page-news a[class*="button"],
    .page-news a[class*="btn"] {
        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-news__btn-secondary {
        margin-left: 0;
    }
    .page-news__faq-question {
        padding: 15px;
    }
    .page-news__faq-qtext {
        font-size: 16px;
    }
    .page-news__faq-toggle {
        font-size: 20px;
    }
    .page-news__faq-answer {
        padding: 0 15px 15px;
    }
}