/* style/tin-tuc.css */

:root {
    --primary-color: #2F6BFF;
    --secondary-color: #6FA3FF;
    --button-gradient: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
    --card-bg: #FFFFFF;
    --background-color-page: #F4F7FB;
    --text-main-color: #1F2D3D;
    --text-black-color: #000000;
    --border-color: #D6E2FF;
    --glow-color: #A5C4FF;
    --padding-section-desktop: 80px 0;
    --padding-section-mobile: 40px 0;
    --container-max-width: 1200px;
    --gap-desktop: 30px;
    --gap-mobile: 20px;
}

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

.page-tin-tuc__container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Hero Section */
.page-tin-tuc__hero-section {
    position: relative;
    padding-top: 10px; /* Small top padding, body handles --header-offset */
    padding-bottom: 60px;
    background-color: var(--background-color-page);
    text-align: center;
    overflow: hidden;
}

.page-tin-tuc__hero-image-wrapper {
    width: 100%;
    max-height: 500px; /* Limit height for hero image */
    overflow: hidden;
    margin-bottom: 40px;
    border-radius: 8px;
}

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

.page-tin-tuc__hero-content {
    position: relative;
    z-index: 2;
    padding: 0 20px;
}

.page-tin-tuc__main-title {
    font-size: clamp(2.5rem, 4vw, 3.2rem);
    color: var(--text-black-color);
    margin-bottom: 20px;
    font-weight: 700;
    line-height: 1.2;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
}

.page-tin-tuc__hero-description {
    font-size: 1.15rem;
    color: var(--text-main-color);
    max-width: 800px;
    margin: 0 auto 30px auto;
}

.page-tin-tuc__cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--gap-desktop);
}

.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-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.3s ease;
    white-space: normal; /* Allow text wrapping */
    word-wrap: break-word; /* Allow text wrapping */
    box-sizing: border-box;
}

.page-tin-tuc__btn-primary {
    background: var(--button-gradient);
    color: #ffffff;
    border: 2px solid transparent;
}

.page-tin-tuc__btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(47, 107, 255, 0.4);
}

.page-tin-tuc__btn-secondary {
    background: #ffffff;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.page-tin-tuc__btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(47, 107, 255, 0.2);
    background: var(--primary-color);
    color: #ffffff;
}

/* Featured News Section */
.page-tin-tuc__featured-news-section {
    padding: var(--padding-section-desktop);
    background-color: var(--card-bg);
}

.page-tin-tuc__section-title {
    font-size: clamp(2rem, 3.5vw, 2.5rem);
    color: var(--text-black-color);
    text-align: center;
    margin-bottom: 15px;
    font-weight: 700;
}

.page-tin-tuc__section-description {
    font-size: 1.05rem;
    color: var(--text-main-color);
    text-align: center;
    max-width: 900px;
    margin: 0 auto 50px auto;
}

.page-tin-tuc__featured-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--gap-desktop);
}

.page-tin-tuc__featured-card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-tin-tuc__featured-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.page-tin-tuc__featured-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
}

.page-tin-tuc__featured-content {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.page-tin-tuc__featured-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 10px;
    line-height: 1.3;
}

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

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

.page-tin-tuc__featured-meta {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 15px;
}

.page-tin-tuc__featured-text {
    font-size: 1rem;
    color: var(--text-main-color);
    margin-bottom: 20px;
    flex-grow: 1;
}

.page-tin-tuc__read-more-btn {
    display: inline-block;
    background: var(--primary-color);
    color: #ffffff;
    padding: 10px 20px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    transition: background 0.3s ease;
}

.page-tin-tuc__read-more-btn:hover {
    background: var(--secondary-color);
}

/* Latest Articles Section */
.page-tin-tuc__latest-articles-section {
    padding: var(--padding-section-desktop);
    background-color: var(--background-color-page);
}

.page-tin-tuc__article-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--gap-desktop);
}

.page-tin-tuc__article-card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-tin-tuc__article-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-tin-tuc__article-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    display: block;
}

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

.page-tin-tuc__article-title {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.4;
}

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

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

.page-tin-tuc__article-meta {
    font-size: 0.85rem;
    color: #777;
    margin-bottom: 12px;
}

.page-tin-tuc__article-text {
    font-size: 0.95rem;
    color: var(--text-main-color);
    margin-bottom: 15px;
    flex-grow: 1;
}

.page-tin-tuc__read-more-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.page-tin-tuc__read-more-link:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

.page-tin-tuc__view-all-wrapper {
    text-align: center;
    margin-top: 50px;
}

/* CTA Banner Section */
.page-tin-tuc__cta-banner-section {
    background: var(--button-gradient);
    padding: 80px 20px;
    text-align: center;
    color: #ffffff;
}

.page-tin-tuc__cta-banner-inner {
    max-width: 900px;
}

.page-tin-tuc__cta-banner-title {
    font-size: clamp(2rem, 3.5vw, 2.5rem);
    color: #ffffff;
    margin-bottom: 20px;
    font-weight: 700;
}

.page-tin-tuc__cta-banner-description {
    font-size: 1.1rem;
    color: #f0f0f0;
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.page-tin-tuc__cta-banner-section .page-tin-tuc__btn-primary {
    background: #ffffff;
    color: var(--primary-color);
    border: 2px solid #ffffff;
}

.page-tin-tuc__cta-banner-section .page-tin-tuc__btn-primary:hover {
    background: var(--primary-color);
    color: #ffffff;
    box-shadow: 0 5px 15px rgba(255, 255, 255, 0.4);
}

/* FAQ Section */
.page-tin-tuc__faq-section {
    padding: var(--padding-section-desktop);
    background-color: var(--background-color-page);
}

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

.page-tin-tuc__faq-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
}

.page-tin-tuc__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-black-color);
    cursor: pointer;
    transition: background-color 0.3s ease;
    list-style: none; /* For <summary> tag */
}

.page-tin-tuc__faq-question::-webkit-details-marker {
    display: none;
}

.page-tin-tuc__faq-question:hover {
    background-color: #f8f8f8;
}

.page-tin-tuc__faq-qtext {
    flex-grow: 1;
}

.page-tin-tuc__faq-toggle {
    font-size: 1.5rem;
    font-weight: bold;
    margin-left: 15px;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.page-tin-tuc__faq-item[open] .page-tin-tuc__faq-toggle {
    transform: rotate(45deg);
}

.page-tin-tuc__faq-answer {
    padding: 0 25px 20px 25px;
    font-size: 1rem;
    color: var(--text-main-color);
    border-top: 1px solid var(--border-color);
}

.page-tin-tuc__faq-answer p {
    margin-bottom: 0;
}

/* General Image and Container Responsive Styles */
.page-tin-tuc img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* --- Responsive Styles --- */

/* Mobile first approach, then desktop overrides */
@media (max-width: 1024px) {
    .page-tin-tuc__hero-section {
        padding-bottom: 40px;
    }
    .page-tin-tuc__main-title {
        font-size: clamp(2rem, 5vw, 2.8rem);
    }
    .page-tin-tuc__hero-description {
        font-size: 1.05rem;
    }
    .page-tin-tuc__cta-buttons {
        gap: var(--gap-mobile);
    }
    .page-tin-tuc__btn-primary,
    .page-tin-tuc__btn-secondary {
        padding: 12px 25px;
        font-size: 0.95rem;
    }
    .page-tin-tuc__section-title {
        font-size: clamp(1.8rem, 4vw, 2.2rem);
    }
    .page-tin-tuc__section-description {
        font-size: 0.95rem;
        margin-bottom: 40px;
    }
    .page-tin-tuc__featured-grid {
        grid-template-columns: 1fr;
    }
    .page-tin-tuc__featured-image {
        height: 220px;
    }
    .page-tin-tuc__featured-title {
        font-size: 1.3rem;
    }
    .page-tin-tuc__article-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--gap-mobile);
    }
    .page-tin-tuc__article-image {
        height: 160px;
    }
    .page-tin-tuc__article-title {
        font-size: 1.05rem;
    }
    .page-tin-tuc__cta-banner-section {
        padding: 60px 20px;
    }
    .page-tin-tuc__cta-banner-title {
        font-size: clamp(1.8rem, 4vw, 2.2rem);
    }
    .page-tin-tuc__cta-banner-description {
        font-size: 1rem;
    }
}

@media (max-width: 768px) {
    /* HERO 主图区域 */
    .page-tin-tuc__hero-section {
        padding-top: 10px !important; /* Ensures small top padding */
        padding-bottom: 30px;
    }
    .page-tin-tuc__hero-image-wrapper {
        margin-bottom: 30px;
    }
    .page-tin-tuc__main-title {
        font-size: clamp(1.8rem, 7vw, 2.2rem);
        margin-bottom: 15px;
    }
    .page-tin-tuc__hero-description {
        font-size: 1rem;
        margin-bottom: 25px;
    }
    .page-tin-tuc__cta-buttons {
        flex-direction: column; /* Stack buttons vertically */
        gap: 15px; /* Spacing between stacked buttons */
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding: 0 15px;
    }
    
    /* 通用按钮适配 */
    .page-tin-tuc__btn-primary,
    .page-tin-tuc__btn-secondary,
    .page-tin-tuc a[class*="button"],
    .page-tin-tuc 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;
    }
    
    /* 通用图片与容器 */
    .page-tin-tuc img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }
    .page-tin-tuc__container,
    .page-tin-tuc__section,
    .page-tin-tuc__card,
    .page-tin-tuc__cta-banner-inner,
    .page-tin-tuc__faq-list,
    .page-tin-tuc__featured-grid,
    .page-tin-tuc__article-grid {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        overflow-x: hidden; /* Prevent horizontal scroll */
    }

    /* 深色导语区 (Section Title/Description) */
    .page-tin-tuc__featured-news-section,
    .page-tin-tuc__latest-articles-section,
    .page-tin-tuc__faq-section {
        padding: var(--padding-section-mobile);
    }
    .page-tin-tuc__section-title {
        font-size: 1.8rem;
        margin-bottom: 10px;
    }
    .page-tin-tuc__section-description {
        font-size: 0.9rem;
        margin-bottom: 30px;
    }

    /* 博客网格 (Article Grid) */
    .page-tin-tuc__article-grid {
        grid-template-columns: 1fr; /* Single column */
        gap: var(--gap-mobile);
    }
    .page-tin-tuc__article-image {
        height: 200px; /* Adjust height for better mobile view */
    }
    .page-tin-tuc__article-title {
        font-size: 1.1rem;
    }
    .page-tin-tuc__featured-image {
        height: 200px;
    }
    .page-tin-tuc__featured-title {
        font-size: 1.2rem;
    }

    /* CTA Banner Section */
    .page-tin-tuc__cta-banner-section {
        padding: 40px 15px;
    }
    .page-tin-tuc__cta-banner-title {
        font-size: 1.8rem;
        margin-bottom: 15px;
    }
    .page-tin-tuc__cta-banner-description {
        font-size: 0.95rem;
        margin-bottom: 30px;
    }

    /* FAQ */
    .page-tin-tuc__faq-question {
        padding: 15px 20px;
        font-size: 1rem;
    }
    .page-tin-tuc__faq-answer {
        padding: 0 20px 15px 20px;
        font-size: 0.9rem;
    }
    .page-tin-tuc__faq-toggle {
        font-size: 1.3rem;
    }
}

@media (max-width: 549px) {
    .page-tin-tuc__article-grid {
        grid-template-columns: 1fr; /* Ensure single column on smaller phones */
    }
}