:root {
    --page-tin-tuc-primary-color: #C91F17;
    --page-tin-tuc-secondary-color: #E53935;
    --page-tin-tuc-button-gradient: linear-gradient(180deg, #FFD86A 0%, #E6B800 100%);
    --page-tin-tuc-card-bg: #D32F2F;
    --page-tin-tuc-background: #B71C1C;
    --page-tin-tuc-text-main: #FFF5E1;
    --page-tin-tuc-border-color: #F2B544;
    --page-tin-tuc-glow-color: #FFCC66;
    --page-tin-tuc-gold-color: #F4D34D;
    --page-tin-tuc-deep-red-color: #7A0E0E;
    /* Default text/background for contrast */
    --page-tin-tuc-dark-text: #333333;
    --page-tin-tuc-light-text: #ffffff;
    --page-tin-tuc-light-bg: #f9f9f9; /* for contrast with dark-bg sections */
}

.page-tin-tuc {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--page-tin-tuc-text-main); /* Default text color for the page, assuming dark body bg */
    background: var(--page-tin-tuc-background); /* Override body background if needed, but shared.css sets body */
}

.page-tin-tuc__hero-section {
    padding-top: 10px; /* Small top padding, relying on body padding-top from shared.css */
    margin-bottom: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-tin-tuc__hero-image-wrapper {
    width: 100%;
    max-height: 500px; /* Limit height on desktop */
    overflow: hidden;
    position: relative;
}

.page-tin-tuc__hero-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover; /* Ensure image covers the area */
}

.page-tin-tuc__hero-content {
    background: var(--page-tin-tuc-light-bg); /* Use a light background for text to ensure contrast */
    color: var(--page-tin-tuc-dark-text);
    padding: 30px 20px;
    border-radius: 8px;
    margin-top: -80px; /* Overlap image slightly */
    position: relative;
    z-index: 1;
    width: calc(100% - 40px);
    max-width: 900px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.page-tin-tuc__main-title {
    font-size: clamp(2.2em, 4vw, 3.5em); /* Responsive font size */
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--page-tin-tuc-primary-color);
    line-height: 1.2;
}

.page-tin-tuc__description {
    font-size: 1.1em;
    margin-bottom: 25px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.page-tin-tuc__cta-button {
    display: inline-block;
    padding: 12px 25px;
    background: var(--page-tin-tuc-button-gradient);
    color: var(--page-tin-tuc-deep-red-color); /* Dark text for gold button */
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

.page-tin-tuc__cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0,0,0,0.3);
}

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

.page-tin-tuc__latest-news-section,
.page-tin-tuc__faq-section {
    padding: 60px 0;
    background: var(--page-tin-tuc-background); /* Dark background */
    color: var(--page-tin-tuc-text-main);
}

.page-tin-tuc__in-depth-analysis-section,
.page-tin-tuc__cta-section {
    padding: 60px 0;
    background: var(--page-tin-tuc-light-bg); /* Light background for contrast */
    color: var(--page-tin-tuc-dark-text);
}

.page-tin-tuc__section-title {
    font-size: clamp(1.8em, 3.5vw, 2.8em);
    font-weight: 700;
    text-align: center;
    margin-bottom: 40px;
    color: var(--page-tin-tuc-gold-color); /* Gold color for titles on dark background */
}

.page-tin-tuc__in-depth-analysis-section .page-tin-tuc__section-title,
.page-tin-tuc__cta-section .page-tin-tuc__section-title {
    color: var(--page-tin-tuc-primary-color); /* Red color for titles on light background */
}

.page-tin-tuc__news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.page-tin-tuc__news-card {
    background: var(--page-tin-tuc-card-bg); /* Card background */
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    display: flex;
    flex-direction: column;
    color: var(--page-tin-tuc-text-main);
}

.page-tin-tuc__news-card-image {
    width: 100%;
    height: 220px; /* Fixed height for consistency */
    object-fit: cover;
    display: block;
}

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

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

.page-tin-tuc__news-card-title a {
    color: var(--page-tin-tuc-gold-color); /* Gold for card titles */
    text-decoration: none;
    transition: color 0.2s ease;
}

.page-tin-tuc__news-card-title a:hover {
    color: var(--page-tin-tuc-gold-color); /* Maintain color on hover */
    text-decoration: underline;
}

.page-tin-tuc__news-card-meta {
    font-size: 0.9em;
    color: var(--page-tin-tuc-gold-color);
    margin-bottom: 15px;
}

.page-tin-tuc__news-card-excerpt {
    font-size: 1em;
    margin-bottom: 20px;
    flex-grow: 1;
}

.page-tin-tuc__read-more-btn {
    display: inline-block;
    padding: 8px 15px;
    background: var(--page-tin-tuc-button-gradient);
    color: var(--page-tin-tuc-deep-red-color);
    text-decoration: none;
    border-radius: 4px;
    font-weight: bold;
    align-self: flex-start;
    transition: background-color 0.2s ease;
}

.page-tin-tuc__read-more-btn:hover {
    filter: brightness(1.1);
}

.page-tin-tuc__view-all-wrapper {
    text-align: center;
    margin-top: 20px;
}

.page-tin-tuc__article-body {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 15px;
    font-size: 1.1em;
    line-height: 1.8;
    color: var(--page-tin-tuc-dark-text); /* Ensure dark text on light background */
}

.page-tin-tuc__article-body h3 {
    font-size: 1.6em;
    font-weight: 600;
    margin-top: 30px;
    margin-bottom: 15px;
    color: var(--page-tin-tuc-primary-color);
}

.page-tin-tuc__article-body p {
    margin-bottom: 1em;
}

.page-tin-tuc__article-figure {
    margin: 30px 0;
    text-align: center;
}

.page-tin-tuc__article-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.page-tin-tuc__article-figcaption {
    font-size: 0.9em;
    color: #666;
    margin-top: 10px;
}

.page-tin-tuc__faq-list {
    max-width: 900px;
    margin: 0 auto;
}

details.page-tin-tuc__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  border: 1px solid var(--page-tin-tuc-border-color); /* Gold border */
  overflow: hidden;
  background: var(--page-tin-tuc-card-bg); /* Card BG for FAQ item */
}
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: var(--page-tin-tuc-deep-red-color); /* Darker red on hover */
}
.page-tin-tuc__faq-qtext {
  flex: 1;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: var(--page-tin-tuc-gold-color); /* Gold text for questions */
}
.page-tin-tuc__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: var(--page-tin-tuc-gold-color); /* Gold for toggle icon */
  flex-shrink: 0;
  margin-left: 15px;
  width: 28px;
  text-align: center;
}
details.page-tin-tuc__faq-item .page-tin-tuc__faq-answer {
  padding: 0 20px 20px;
  background: var(--page-tin-tuc-deep-red-color); /* Deep red for answer background */
  border-radius: 0 0 5px 5px;
  color: var(--page-tin-tuc-text-main); /* Main text color for answers */
}

.page-tin-tuc__cta-section {
    text-align: center;
    padding: 80px 20px;
}

.page-tin-tuc__register-btn {
    margin-top: 20px;
}

/* General image and container responsiveness */
.page-tin-tuc img {
    max-width: 100%;
    height: auto;
    display: block;
}

.page-tin-tuc__section,
.page-tin-tuc__card,
.page-tin-tuc__container,
.page-tin-tuc__hero-section,
.page-tin-tuc__latest-news-section,
.page-tin-tuc__in-depth-analysis-section,
.page-tin-tuc__faq-section,
.page-tin-tuc__cta-section {
    max-width: 100%;
    width: 100%;
    box-sizing: border-box;
    overflow: hidden; /* Prevent horizontal scroll */
}

/* Mobile Responsiveness */
@media (max-width: 1024px) {
    .page-tin-tuc__hero-content {
        margin-top: -60px;
        padding: 25px 15px;
    }
    .page-tin-tuc__main-title {
        font-size: clamp(2em, 5vw, 3em);
    }
    .page-tin-tuc__description {
        font-size: 1em;
    }
    .page-tin-tuc__news-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 20px;
    }
    .page-tin-tuc__news-card-image {
        height: 180px;
    }
    .page-tin-tuc__news-card-title {
        font-size: 1.2em;
    }
    .page-tin-tuc__article-body {
        font-size: 1em;
    }
    .page-tin-tuc__article-body h3 {
        font-size: 1.4em;
    }
}


@media (max-width: 768px) {
    /* 1. HERO 主图区域 */
    .page-tin-tuc__hero-section {
        padding-top: 10px; /* Small top padding */
        margin-bottom: 20px;
    }
    .page-tin-tuc__hero-image-wrapper {
        max-height: 300px; /* Adjust height for mobile */
    }
    .page-tin-tuc__hero-image {
        object-fit: contain !important; /* Mobile: prevent cropping, show full image */
        aspect-ratio: unset !important; /* Remove fixed aspect ratio */
        width: 100% !important;
        height: auto !important;
    }
    .page-tin-tuc__hero-content {
        margin-top: -40px; /* Adjust overlap */
        padding: 20px 15px;
        width: calc(100% - 30px); /* Adjust width */
    }
    .page-tin-tuc__main-title {
        font-size: clamp(1.8em, 6vw, 2.5em); /* Smaller font size for mobile */
        margin-bottom: 10px;
    }
    .page-tin-tuc__description {
        font-size: 0.95em;
        margin-bottom: 20px;
    }
    .page-tin-tuc__cta-button {
        padding: 10px 20px;
        font-size: 0.95em;
    }

    /* 2. 产品展示图区域 (Not applicable for this page, but general grid for news cards) */
    .page-tin-tuc__news-grid {
        grid-template-columns: 1fr; /* Single column for news cards */
        gap: 20px;
    }

    /* 3. 装饰主标题 + 长文 SEO 区 */
    .page-tin-tuc__section-title {
        font-size: clamp(1.5em, 5vw, 2em);
        margin-bottom: 30px;
        padding: 0 15px; /* Add padding to prevent text touching edges */
    }
    .page-tin-tuc__article-body {
        font-size: 1em;
        padding: 0 15px;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
    .page-tin-tuc__article-body h3 {
        font-size: 1.3em;
        text-align: center; /* Center align headings in article body */
    }
    .page-tin-tuc__article-figure {
        margin: 20px 0;
    }
    .page-tin-tuc__article-image {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }
    .page-tin-tuc__article-figcaption {
        padding: 0 15px; /* Add padding */
    }

    /* 4. 通用图片与容器 */
    .page-tin-tuc img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
    }
    .page-tin-tuc__section,
    .page-tin-tuc__card,
    .page-tin-tuc__container,
    .page-tin-tuc__hero-section,
    .page-tin-tuc__latest-news-section,
    .page-tin-tuc__in-depth-analysis-section,
    .page-tin-tuc__faq-section,
    .page-tin-tuc__cta-section {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        overflow-x: hidden !important; /* Ensure no horizontal scroll */
    }

    /* 5. 按钮与按钮容器 */
    .page-tin-tuc__cta-button,
    .page-tin-tuc__read-more-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;
        text-align: center; /* Center button text */
    }
    .page-tin-tuc__view-all-wrapper {
        display: flex; /* Use flex to center the button */
        justify-content: center;
        padding: 0 15px;
    }
    .page-tin-tuc__cta-section .page-tin-tuc__cta-button {
        display: block; /* Make CTA button block level */
        margin-left: auto;
        margin-right: auto;
    }
    
    /* FAQ Specific Mobile styles */
    details.page-tin-tuc__faq-item summary.page-tin-tuc__faq-question {
        padding: 15px;
    }
    .page-tin-tuc__faq-qtext {
        font-size: 15px;
    }
    .page-tin-tuc__faq-toggle {
        font-size: 20px;
        width: 24px;
        height: 24px;
    }
    details.page-tin-tuc__faq-item .page-tin-tuc__faq-answer {
        padding: 0 15px 15px;
    }
}