/* Base styles and variables */
:root {
    --primary-color: #E53935;
    --secondary-color: #FF5A4F;
    --card-bg-color: #FFFFFF;
    --background-color-page: #F5F7FA;
    --text-main-color: #333333;
    --border-color: #E0E0E0;
}

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

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

.page-tin-tuc__section-title {
    font-size: 36px;
    font-weight: bold;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 40px;
    line-height: 1.2;
}

.page-tin-tuc__text-block {
    font-size: 16px;
    line-height: 1.7;
    margin-bottom: 20px;
    text-align: justify;
}

.page-tin-tuc__btn-primary,
.page-tin-tuc__btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 25px;
    border-radius: 8px;
    font-size: 18px;
    font-weight: bold;
    text-decoration: none;
    transition: all 0.3s ease;
    white-space: normal;
    word-wrap: break-word;
    text-align: center;
    box-sizing: border-box;
}

.page-tin-tuc__btn-primary {
    background: linear-gradient(180deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: #ffffff;
    border: none;
}

.page-tin-tuc__btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

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

.page-tin-tuc__btn-secondary:hover {
    background: var(--primary-color);
    color: #ffffff;
}

.page-tin-tuc__card {
    background-color: var(--card-bg-color);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    color: var(--text-main-color);
}

.page-tin-tuc__card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
}

/* Hero Section */
.page-tin-tuc__hero-section {
    position: relative;
    padding-top: 10px; /* Small top padding, body handles --header-offset */
    padding-bottom: 50px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    color: #ffffff;
    overflow: hidden;
}

.page-tin-tuc__hero-image-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

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

.page-tin-tuc__hero-content {
    position: relative;
    z-index: 2;
    padding-top: 80px;
    padding-bottom: 50px;
    max-width: 900px;
}

.page-tin-tuc__main-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 20px;
    color: #ffffff;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.page-tin-tuc__hero-description {
    font-size: 20px;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
    color: #f0f0f0;
}

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

.page-tin-tuc__news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.page-tin-tuc__news-card {
    display: flex;
    flex-direction: column;
}

.page-tin-tuc__card-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
    border-radius: 8px 8px 0 0;
    display: block;
}

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

.page-tin-tuc__card-title {
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 10px;
    line-height: 1.3;
}

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

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

.page-tin-tuc__card-meta {
    font-size: 14px;
    color: #777;
    margin-bottom: 15px;
}

.page-tin-tuc__card-text {
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 20px;
    flex-grow: 1;
}

.page-tin-tuc__read-more-btn {
    display: inline-block;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s ease;
}

.page-tin-tuc__read-more-btn:hover {
    text-decoration: underline;
}

.page-tin-tuc__view-all-wrapper {
    text-align: center;
}

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

.page-tin-tuc__categories-section .page-tin-tuc__section-title {
    color: #ffffff;
}

.page-tin-tuc__categories-section .page-tin-tuc__text-block {
    color: #f0f0f0;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px auto;
}

.page-tin-tuc__category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.page-tin-tuc__category-card {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #ffffff;
    text-align: center;
    padding: 30px 20px;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.page-tin-tuc__category-card:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
}

.page-tin-tuc__category-title {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 10px;
    color: #ffffff;
}

.page-tin-tuc__category-description {
    font-size: 15px;
    line-height: 1.5;
    color: #f0f0f0;
}

/* Benefits Section */
.page-tin-tuc__benefits-section {
    padding: 60px 0;
    background-color: var(--background-color-page);
}

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

.page-tin-tuc__benefit-item {
    padding: 30px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
}

.page-tin-tuc__benefit-title {
    font-size: 22px;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.page-tin-tuc__benefit-text {
    font-size: 16px;
    line-height: 1.6;
}

/* Access Guide Section */
.page-tin-tuc__access-guide-section {
    padding: 60px 0;
    background-color: var(--card-bg-color);
}

.page-tin-tuc__guide-list {
    list-style: none;
    padding: 0;
    max-width: 800px;
    margin: 0 auto;
}

.page-tin-tuc__guide-item {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 20px;
    padding-left: 30px;
    position: relative;
}

.page-tin-tuc__guide-item::before {
    content: '\2022'; /* Bullet point */
    color: var(--primary-color);
    font-weight: bold;
    display: inline-block;
    width: 1em;
    margin-left: -1em;
    position: absolute;
    left: 0;
}

.page-tin-tuc__guide-item strong {
    color: var(--primary-color);
}

/* FAQ Section */
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;
}
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;
  color: var(--text-main-color);
}
.page-tin-tuc__faq-toggle {
  font-size: 28px;
  font-weight: bold;
  color: #666;
  flex-shrink: 0;
  margin-left: 15px;
  width: 30px;
  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;
}
.page-tin-tuc__faq-answer p {
    font-size: 16px;
    line-height: 1.6;
    margin: 0;
    color: var(--text-main-color);
}

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

.page-tin-tuc__conclusion-cta .page-tin-tuc__section-title {
    color: #ffffff;
}

.page-tin-tuc__conclusion-cta .page-tin-tuc__text-block {
    color: #f0f0f0;
    max-width: 800px;
    margin: 0 auto 40px auto;
}

.page-tin-tuc__cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* Global image responsiveness */
.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(auto-fit, minmax(300px, 1fr));
    }
    .page-tin-tuc__main-title {
        font-size: clamp(2rem, 4.5vw, 3rem);
    }
    .page-tin-tuc__hero-description {
        font-size: 18px;
    }
    .page-tin-tuc__section-title {
        font-size: 32px;
    }
    .page-tin-tuc__category-grid {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }
    .page-tin-tuc__benefits-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    /* HERO 主图区域 */
    .page-tin-tuc__hero-section {
        padding-top: 10px !important; /* Ensure small top padding */
        padding-bottom: 30px;
    }
    .page-tin-tuc__hero-image-wrapper {
        position: static; /* Remove absolute positioning for mobile */
        height: 250px; /* Fixed height for mobile hero image */
    }
    .page-tin-tuc__hero-image {
        object-fit: contain !important; /* Ensure image is fully visible */
        aspect-ratio: unset !important; /* Remove aspect ratio constraint */
        width: 100% !important;
        height: 100% !important;
    }
    .page-tin-tuc__hero-content {
        padding-top: 30px;
        padding-bottom: 30px;
    }
    .page-tin-tuc__main-title {
        font-size: clamp(1.8rem, 8vw, 2.5rem) !important;
        margin-bottom: 15px;
    }
    .page-tin-tuc__hero-description {
        font-size: 16px !important;
        margin-bottom: 25px;
    }

    /* 产品展示图区域 - Not applicable for Tin Tức directly, but general grid handling */
    .page-tin-tuc__news-grid {
        grid-template-columns: 1fr; /* Single column for news cards */
        gap: 20px;
        overflow-x: hidden; /* Prevent horizontal scroll */
    }
    .page-tin-tuc__news-card {
        width: 100%;
        box-sizing: border-box;
    }
    .page-tin-tuc__card-image {
        height: 180px; /* Adjust height for mobile */
        max-width: 100% !important;
        width: 100% !important;
    }
    .page-tin-tuc__card-content {
        padding: 15px;
    }
    .page-tin-tuc__card-title {
        font-size: 18px;
    }
    .page-tin-tuc__card-text {
        font-size: 15px;
    }

    /* 装饰主标题 + 长文 SEO 区 */
    .page-tin-tuc__section-title {
        font-size: clamp(24px, 7vw, 28px) !important;
        margin-bottom: 30px;
        padding: 0 10px; /* Add horizontal padding for smaller screens */
    }
    .page-tin-tuc__text-block {
        font-size: 15px !important;
        line-height: 1.6 !important;
        padding: 0 10px;
        text-align: left; /* Adjust text alignment for readability */
    }
    .page-tin-tuc__guide-list {
        padding: 0 10px;
    }
    .page-tin-tuc__guide-item {
        font-size: 16px;
        margin-bottom: 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 {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }
    .page-tin-tuc__categories-section .page-tin-tuc__text-block,
    .page-tin-tuc__conclusion-cta .page-tin-tuc__text-block {
        padding: 0 10px;
    }

    /* 按钮与按钮容器 */
    .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: 12px 15px !important; /* Adjust padding for mobile */
        font-size: 16px !important;
    }
    .page-tin-tuc__cta-buttons,
    .page-tin-tuc__button-group,
    .page-tin-tuc__btn-container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        flex-direction: column !important; /* Stack buttons vertically */
        gap: 15px !important; /* Adjust gap for stacked buttons */
    }

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

    /* Category Grid */
    .page-tin-tuc__category-grid {
        grid-template-columns: 1fr;
    }
    .page-tin-tuc__category-card {
        padding: 25px 15px;
    }
    .page-tin-tuc__category-title {
        font-size: 20px;
    }
    .page-tin-tuc__category-description {
        font-size: 14px;
    }

    /* Benefits Grid */
    .page-tin-tuc__benefits-grid {
        grid-template-columns: 1fr;
    }
    .page-tin-tuc__benefit-item {
        padding: 25px 15px;
    }
    .page-tin-tuc__benefit-title {
        font-size: 20px;
    }
    .page-tin-tuc__benefit-text {
        font-size: 15px;
    }
}