:root {
    --primary-color: #113B7A;
    --secondary-color: #1D5FD1;
    --text-main: #F3F8FF;
    --text-secondary: #AFC4E8;
    --button-gradient: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
    --card-bg: #10233F;
    --border-color: #244D84;
    --glow-color: #4FA8FF;
    --gold-color: #F2C14E;
    --divider-color: #1B3357;
    --deep-navy: #08162B;
}

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

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

/* Hero Section */
.page-blog__hero-section {
    position: relative;
    padding-top: 10px; /* Minimal top padding, rely on body for header offset */
    padding-bottom: 50px;
    text-align: center;
    overflow: hidden;
    background-color: var(--deep-navy);
}

.page-blog__hero-image {
    position: relative;
    width: 100%;
    height: 675px; /* Fixed height for desktop, will be responsive */
    margin-bottom: 30px;
}

.page-blog__hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: 10px;
}

.page-blog__hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.page-blog__hero-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    color: var(--gold-color);
    margin-bottom: 15px;
    font-weight: 700;
    line-height: 1.2;
}

.page-blog__hero-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
    line-height: 1.6;
}

.page-blog__hero-button {
    display: inline-block;
    padding: 15px 30px;
    background: var(--button-gradient);
    color: var(--text-main);
    text-decoration: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.page-blog__hero-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

/* General Section Styling */
.page-blog__section-title {
    font-size: 2.2rem;
    color: var(--gold-color);
    text-align: center;
    margin-bottom: 40px;
    font-weight: 700;
    position: relative;
}

.page-blog__section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 15px auto 0;
    border-radius: 2px;
}

.page-blog__text-block {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 20px;
    text-align: justify;
}

/* Introduction Section */
.page-blog__introduction-section {
    padding: 50px 0;
    background-color: var(--deep-navy);
}

/* Latest Articles Section */
.page-blog__latest-articles-section {
    padding: 50px 0;
    background-color: var(--deep-navy);
}

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

.page-blog__article-card {
    background-color: var(--card-bg);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.page-blog__article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-blog__article-link {
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.page-blog__article-image {
    width: 100%;
    height: 225px; /* Fixed height for cards */
    object-fit: cover;
    display: block;
}

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

.page-blog__article-title {
    font-size: 1.3rem;
    color: var(--text-main);
    margin-bottom: 10px;
    font-weight: 600;
    line-height: 1.4;
}

.page-blog__article-excerpt {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 15px;
    flex-grow: 1;
}

.page-blog__article-date {
    font-size: 0.85rem;
    color: var(--text-secondary);
    opacity: 0.7;
    margin-top: auto;
}

.page-blog__view-all-button-wrapper {
    text-align: center;
}

.page-blog__view-all-button {
    display: inline-block;
    padding: 12px 25px;
    background: var(--primary-color);
    color: var(--text-main);
    text-decoration: none;
    border-radius: 5px;
    font-size: 1rem;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.page-blog__view-all-button:hover {
    background-color: var(--secondary-color);
}

/* Categories Section */
.page-blog__categories-section {
    padding: 50px 0;
    background-color: var(--deep-navy);
}

.page-blog__categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.page-blog__category-card {
    background-color: var(--card-bg);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
    padding-bottom: 20px;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
}

.page-blog__category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-blog__category-image {
    width: 100%;
    height: 200px; /* Fixed height for category images */
    object-fit: cover;
    margin-bottom: 15px;
}

.page-blog__category-title {
    font-size: 1.4rem;
    color: var(--gold-color);
    margin-bottom: 10px;
    font-weight: 600;
    padding: 0 15px;
}

.page-blog__category-description {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    padding: 0 15px;
    flex-grow: 1;
}

/* Featured Section */
.page-blog__featured-section {
    padding: 50px 0;
    background-color: var(--deep-navy);
}

.page-blog__featured-content {
    display: flex;
    gap: 40px;
    align-items: center;
    background-color: var(--card-bg);
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
    padding: 30px;
}

.page-blog__featured-image {
    flex-shrink: 0;
    width: 50%;
    max-width: 800px;
    height: auto;
    object-fit: cover;
    border-radius: 8px;
}

.page-blog__featured-text {
    flex-grow: 1;
}

.page-blog__featured-title {
    font-size: 2rem;
    color: var(--gold-color);
    margin-bottom: 20px;
    font-weight: 700;
    line-height: 1.3;
}

.page-blog__featured-excerpt {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
    text-align: justify;
}

.page-blog__read-more-button {
    display: inline-block;
    padding: 12px 25px;
    background: var(--button-gradient);
    color: var(--text-main);
    text-decoration: none;
    border-radius: 5px;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.page-blog__read-more-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.3);
}

/* Call to Action Section */
.page-blog__call-to-action-section {
    padding: 60px 0;
    background-color: var(--primary-color);
    text-align: center;
    border-radius: 10px;
    margin: 50px auto;
    max-width: 1200px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

.page-blog__cta-content {
    padding: 0 20px;
}

.page-blog__cta-title {
    font-size: 2.5rem;
    color: var(--gold-color);
    margin-bottom: 20px;
    font-weight: 700;
}

.page-blog__cta-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.6;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

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

.page-blog__btn-primary,
.page-blog__btn-secondary {
    display: inline-block;
    padding: 15px 30px;
    text-decoration: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    white-space: normal;
    word-wrap: break-word;
    max-width: 100%;
    box-sizing: border-box;
}

.page-blog__btn-primary {
    background: var(--button-gradient);
    color: var(--text-main);
    border: 2px solid transparent;
}

.page-blog__btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.page-blog__btn-secondary {
    background: var(--card-bg);
    color: var(--gold-color);
    border: 2px solid var(--gold-color);
}

.page-blog__btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    background-color: rgba(255, 255, 255, 0.1);
}

/* FAQ Section */
.page-blog__faq-section {
    padding: 50px 0 80px;
    background-color: var(--deep-navy);
}

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

details.page-blog__faq-item {
  margin-bottom: 15px;
  border-radius: 10px;
  overflow: hidden;
  background: var(--card-bg);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}
details.page-blog__faq-item summary.page-blog__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
  color: var(--text-main);
  font-weight: 600;
}
details.page-blog__faq-item summary.page-blog__faq-question::-webkit-details-marker {
  display: none;
}
details.page-blog__faq-item summary.page-blog__faq-question:hover {
  background: rgba(var(--primary-color), 0.2);
}
.page-blog__faq-qtext {
  flex: 1;
  font-size: 1.1rem;
  line-height: 1.5;
  text-align: left;
}
.page-blog__faq-toggle {
  font-size: 1.8rem;
  font-weight: bold;
  color: var(--gold-color);
  flex-shrink: 0;
  margin-left: 15px;
  width: 30px;
  text-align: center;
}
details.page-blog__faq-item .page-blog__faq-answer {
  padding: 0 25px 25px;
  background: rgba(var(--card-bg), 0.8);
  border-radius: 0 0 10px 10px;
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.6;
}

/* General Image Styling */
.page-blog img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Mobile Responsiveness */
@media (max-width: 1024px) {
    .page-blog__container {
        padding: 15px;
    }

    .page-blog__hero-image {
        height: 500px;
    }

    .page-blog__hero-title {
        font-size: clamp(2rem, 4.5vw, 3rem);
    }

    .page-blog__hero-description {
        font-size: 1rem;
    }

    .page-blog__section-title {
        font-size: 1.8rem;
        margin-bottom: 30px;
    }

    .page-blog__articles-grid {
        gap: 20px;
    }

    .page-blog__article-title {
        font-size: 1.2rem;
    }

    .page-blog__article-excerpt {
        font-size: 0.9rem;
    }

    .page-blog__categories-grid {
        gap: 20px;
    }

    .page-blog__category-title {
        font-size: 1.3rem;
    }

    .page-blog__featured-content {
        flex-direction: column;
        padding: 20px;
        gap: 20px;
    }

    .page-blog__featured-image {
        width: 100%;
        max-width: 100%;
    }

    .page-blog__featured-title {
        font-size: 1.8rem;
    }

    .page-blog__featured-excerpt {
        font-size: 1rem;
    }

    .page-blog__cta-title {
        font-size: 2rem;
    }

    .page-blog__cta-description {
        font-size: 1rem;
    }

    .page-blog__btn-primary,
    .page-blog__btn-secondary {
        padding: 12px 25px;
        font-size: 1rem;
    }

    .page-blog__faq-qtext {
        font-size: 1rem;
    }

    .page-blog__faq-toggle {
        font-size: 1.5rem;
    }
}

@media (max-width: 768px) {
    /* HERO 主图区域 */
    .page-blog__hero-section {
        padding-top: 10px; /* Force minimal top padding */
        padding-bottom: 30px;
    }
    .page-blog__hero-image {
        height: auto; /* Allow image height to adjust */
        margin-bottom: 20px;
    }
    .page-blog__hero-image img {
        object-fit: contain !important; /* Prevent cropping on mobile */
        aspect-ratio: unset !important; /* Remove aspect ratio for contain */
        border-radius: 0;
    }
    .page-blog__hero-title {
        font-size: clamp(1.8rem, 8vw, 2.5rem);
        margin-bottom: 10px;
    }
    .page-blog__hero-description {
        font-size: 0.9rem;
        margin-bottom: 20px;
    }
    .page-blog__hero-button {
        padding: 12px 20px;
        font-size: 0.95rem;
    }

    /* 通用图片与容器 */
    .page-blog img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }
    .page-blog__container,
    .page-blog__introduction-section,
    .page-blog__latest-articles-section,
    .page-blog__categories-section,
    .page-blog__featured-section,
    .page-blog__call-to-action-section,
    .page-blog__faq-section {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }

    /* 产品展示图区域 (Articles Grid) */
    .page-blog__articles-grid {
        grid-template-columns: 1fr; /* Single column on mobile */
        gap: 20px;
        overflow-x: hidden;
    }
    .page-blog__article-card {
        margin-bottom: 15px;
    }

    /* 装饰主标题 + 长文 SEO 区 */
    .page-blog__section-title {
        font-size: 1.5rem;
        margin-bottom: 25px;
        word-break: break-word;
        text-align: center;
    }
    .page-blog__section-title::after {
        width: 60px;
        margin: 10px auto 0;
    }
    .page-blog__text-block {
        font-size: 0.9rem;
        line-height: 1.5;
    }

    /* Featured Section (long article) */
    .page-blog__featured-content {
        padding: 15px;
    }
    .page-blog__featured-image {
        width: 100%;
        height: auto;
    }
    .page-blog__featured-title {
        font-size: 1.5rem;
        margin-bottom: 15px;
    }
    .page-blog__featured-excerpt {
        font-size: 0.9rem;
        line-height: 1.5;
    }

    /* 按钮与按钮容器 */
    .page-blog__cta-buttons {
        flex-direction: column; /* Stack buttons vertically */
        gap: 15px;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
    .page-blog__btn-primary,
    .page-blog__btn-secondary,
    .page-blog__hero-button,
    .page-blog__view-all-button,
    .page-blog__read-more-button {
        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;
    }

    /* FAQ Section */
    details.page-blog__faq-item summary.page-blog__faq-question {
        padding: 15px;
    }
    .page-blog__faq-qtext {
        font-size: 0.95rem;
    }
    .page-blog__faq-toggle {
        font-size: 1.3rem;
        width: 25px;
    }
    details.page-blog__faq-item .page-blog__faq-answer {
        padding: 0 15px 15px;
    }
    .page-blog__faq-answer p {
        font-size: 0.9rem;
    }

    /* Categories Grid */
    .page-blog__categories-grid {
        grid-template-columns: 1fr; /* Single column on mobile */
        gap: 20px;
    }
    .page-blog__category-image {
        height: 150px;
    }
    .page-blog__category-title {
        font-size: 1.2rem;
    }
    .page-blog__category-description {
        font-size: 0.85rem;
    }

    /* Call to Action Section */
    .page-blog__call-to-action-section {
        padding: 40px 15px;
        margin: 30px 0;
        border-radius: 0;
    }
    .page-blog__cta-title {
        font-size: 1.8rem;
    }
    .page-blog__cta-description {
        font-size: 0.9rem;
        margin-bottom: 30px;
    }
}