/* style/blog.css */

/* Custom Colors */
:root {
    --color-primary: #11A84E; /* 主色调 */
    --color-secondary: #22C768; /* 辅助色 */
    --color-button-gradient-start: #2AD16F; /* 按钮渐变开始 */
    --color-button-gradient-end: #13994A; /* 按钮渐变结束 */
    --color-card-bg: #11271B; /* Card BG */
    --color-background: #08160F; /* 背景 */
    --color-text-main: #F2FFF6; /* Text Main */
    --color-text-secondary: #A7D9B8; /* Text Secondary */
    --color-border: #2E7A4E; /* 边框 */
    --color-glow: #57E38D; /* Glow */
    --color-gold: #F2C14E; /* Gold */
    --color-divider: #1E3A2A; /* Divider */
    --color-deep-green: #0A4B2C; /* Deep Green */
}

/* Base styles for the blog page, ensuring text contrast against the dark body background */
.page-blog {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: var(--color-text-main); /* Light text for dark background */
    background-color: var(--color-background); /* Explicitly setting background for main content area if needed, but body handles it */
}

/* Ensure all links have proper color and hover states for contrast */
.page-blog a {
    color: var(--color-secondary); /* Use secondary color for links */
    text-decoration: none;
}

.page-blog a:hover {
    color: var(--color-glow);
    text-decoration: underline;
}

/* Section styling */
.page-blog__hero-section {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 10px; /* Small decorative padding, body handles header offset */
    padding-bottom: 60px;
    box-sizing: border-box;
    overflow: hidden; /* Ensure no overflow from hero image */
}

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

.page-blog__hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.5); /* Darken image slightly for text readability, not changing color */
}

.page-blog__hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    padding: 20px;
    color: var(--color-text-main); /* Ensure text is light on potentially darker image */
}

.page-blog__main-title {
    font-size: 3.2em;
    font-weight: bold;
    margin-bottom: 20px;
    color: var(--color-text-main);
    line-height: 1.2;
    max-width: 90%; /* For H1 font size constraint */
    margin-left: auto;
    margin-right: auto;
}

.page-blog__subtitle {
    font-size: 1.2em;
    margin-bottom: 30px;
    color: var(--color-text-secondary);
}

.page-blog__cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap; /* Allow buttons to wrap on smaller screens */
}

.page-blog__cta-buttons--inline {
    margin-top: 30px;
}

.page-blog__btn-primary,
.page-blog__btn-secondary {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    box-sizing: border-box;
    max-width: 100%; /* Ensure buttons adapt to container width */
    white-space: normal; /* Allow text to wrap */
    word-wrap: break-word; /* Allow long words to break */
    text-align: center;
}

.page-blog__btn-primary {
    background: var(--color-button-gradient-start); /* Fallback for gradient */
    background: linear-gradient(180deg, var(--color-button-gradient-start) 0%, var(--color-button-gradient-end) 100%);
    color: var(--color-text-main); /* Light text on dark button */
    border: none;
}

.page-blog__btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(var(--color-glow), 0.3);
}

.page-blog__btn-secondary {
    background-color: transparent;
    color: var(--color-secondary); /* Secondary color for text */
    border: 2px solid var(--color-secondary);
}

.page-blog__btn-secondary:hover {
    background-color: var(--color-secondary);
    color: var(--color-text-main);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(var(--color-secondary), 0.3);
}

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

.page-blog__section-title {
    font-size: 2.5em;
    color: var(--color-gold); /* Use gold for section titles */
    text-align: center;
    margin-bottom: 40px;
    padding-top: 40px;
}

.page-blog__latest-posts,
.page-blog__categories-section,
.page-blog__featured-content,
.page-blog__faq-section {
    padding: 60px 0;
    background-color: var(--color-background); /* Ensure consistency with body background */
}

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

.page-blog__post-card {
    background-color: var(--color-card-bg); /* Dark card background */
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    color: var(--color-text-secondary); /* Secondary text for card content */
    display: flex;
    flex-direction: column;
}

.page-blog__post-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 30px rgba(var(--color-glow), 0.4);
}

.page-blog__post-thumbnail {
    width: 100%;
    height: 220px; /* Fixed height for consistency */
    overflow: hidden;
}

.page-blog__post-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.page-blog__post-card:hover .page-blog__post-thumbnail img {
    transform: scale(1.05);
}

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

.page-blog__post-title {
    font-size: 1.5em;
    margin-bottom: 10px;
    color: var(--color-text-main); /* Main text for titles */
}

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

.page-blog__post-title a:hover {
    color: var(--color-secondary);
    text-decoration: underline;
}

.page-blog__post-meta {
    font-size: 0.9em;
    color: var(--color-text-secondary);
    margin-bottom: 15px;
}

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

.page-blog__read-more {
    color: var(--color-secondary);
    font-weight: bold;
    text-decoration: none;
    align-self: flex-start;
}

.page-blog__read-more:hover {
    color: var(--color-glow);
    text-decoration: underline;
}

.page-blog__view-all {
    text-align: center;
    margin-top: 20px;
}

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

.page-blog__category-item {
    background-color: var(--color-deep-green);
    border-radius: 25px;
    padding: 8px 20px;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.page-blog__category-item a {
    color: var(--color-text-main);
    text-decoration: none;
    font-weight: bold;
    white-space: nowrap;
}

.page-blog__category-item:hover {
    background-color: var(--color-secondary);
    transform: translateY(-3px);
}

/* Featured Content / Detailed Article */
.page-blog__featured-article {
    background-color: var(--color-card-bg); /* Dark background for article content */
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    color: var(--color-text-secondary); /* Secondary text for main content */
}

.page-blog__featured-article h2,
.page-blog__featured-article h3 {
    color: var(--color-text-main); /* Main text for headings */
    margin-top: 30px;
    margin-bottom: 15px;
}

.page-blog__featured-article h2 {
    font-size: 2.2em;
}

.page-blog__featured-article h3 {
    font-size: 1.8em;
    border-bottom: 1px solid var(--color-divider);
    padding-bottom: 5px;
}

.page-blog__featured-article p {
    margin-bottom: 15px;
    font-size: 1.05em;
}

.page-blog__featured-article strong {
    color: var(--color-gold); /* Highlight keywords with gold */
}

.page-blog__image-text-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 30px 0;
    gap: 20px;
}

.page-blog__content-image {
    width: 100%;
    max-width: 800px;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

/* FAQ Section */
.page-blog__faq-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.page-blog__faq-item {
    background-color: var(--color-card-bg); /* Dark card background for FAQ items */
    border-radius: 8px;
    overflow: hidden;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
}

.page-blog__faq-item summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 25px;
    cursor: pointer;
    font-weight: bold;
    color: var(--color-text-main); /* Main text for FAQ questions */
    background-color: var(--color-deep-green);
    border-bottom: 1px solid var(--color-divider);
    list-style: none; /* Hide default marker */
}

.page-blog__faq-item summary::-webkit-details-marker {
    display: none; /* Hide default marker for webkit browsers */
}

.page-blog__faq-question:hover {
    background-color: var(--color-primary);
}

.page-blog__faq-qtext {
    flex-grow: 1;
    font-size: 1.1em;
}

.page-blog__faq-toggle {
    font-size: 1.5em;
    line-height: 1;
    margin-left: 15px;
    transition: transform 0.3s ease;
}

.page-blog__faq-item[open] .page-blog__faq-toggle {
    transform: rotate(45deg); /* Rotate plus to become cross */
}

.page-blog__faq-answer {
    padding: 15px 25px 20px;
    font-size: 1em;
    color: var(--color-text-secondary);
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .page-blog__main-title {
        font-size: 2.8em;
    }
    .page-blog__section-title {
        font-size: 2em;
    }
    .page-blog__post-card {
        max-width: none;
    }
}

@media (max-width: 768px) {
    .page-blog {
        font-size: 16px;
        line-height: 1.6;
    }

    .page-blog__hero-section {
        padding-bottom: 40px;
    }

    .page-blog__hero-content {
        padding: 15px;
    }

    .page-blog__main-title {
        font-size: 2.2em;
        margin-bottom: 15px;
    }

    .page-blog__subtitle {
        font-size: 1em;
        margin-bottom: 20px;
    }

    .page-blog__cta-buttons {
        flex-direction: column;
        gap: 15px;
        width: 100%;
        padding: 0 15px; /* Add padding to container */
    }

    .page-blog__btn-primary,
    .page-blog__btn-secondary,
    .page-blog a[class*="button"],
    .page-blog 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-blog__cta-buttons,
    .page-blog__button-group,
    .page-blog__btn-container {
      max-width: 100% !important;
      width: 100% !important;
      box-sizing: border-box !important;
      padding-left: 15px;
      padding-right: 15px;
      flex-wrap: wrap !important;
      gap: 10px;
    }
    
    .page-blog__cta-buttons {
      display: flex;
      flex-direction: column;
    }

    .page-blog__container {
        padding: 0 15px;
    }

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

    .page-blog__latest-posts,
    .page-blog__categories-section,
    .page-blog__featured-content,
    .page-blog__faq-section {
        padding: 40px 0;
    }

    .page-blog__post-grid {
        grid-template-columns: 1fr;
    }

    .page-blog__post-thumbnail {
        height: 180px;
    }

    .page-blog__featured-article {
        padding: 25px;
    }

    .page-blog__featured-article h2 {
        font-size: 1.8em;
    }

    .page-blog__featured-article h3 {
        font-size: 1.4em;
    }

    .page-blog__categories-list {
        flex-direction: column;
        align-items: center;
    }

    .page-blog__category-item {
        width: 100%;
        text-align: center;
    }

    .page-blog__image-text-block {
        flex-direction: column;
        gap: 15px;
    }

    .page-blog__content-image {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }

    /* Ensure all images are responsive */
    .page-blog img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }
    
    /* Image containers */
    .page-blog__section,
    .page-blog__card,
    .page-blog__container,
    .page-blog__hero-section,
    .page-blog__hero-image-wrapper,
    .page-blog__post-card,
    .page-blog__post-thumbnail,
    .page-blog__featured-article,
    .page-blog__image-text-block {
      max-width: 100% !important;
      width: 100% !important;
      box-sizing: border-box !important;
      padding-left: 15px;
      padding-right: 15px;
      overflow: hidden !important;
    }

    /* Video section top padding */
    .page-blog__video-section {
        padding-top: 10px !important; /* body already handles --header-offset */
    }
}

/* Ensure no filter is used on images */
.page-blog img {
    filter: none; /* Explicitly ensure no filter is applied to change colors */
}

/* Specific contrast fixes if needed for brand colors on specific backgrounds */
.page-blog__dark-bg {
  color: var(--color-text-main); /* Deep green bg, light text */
  background: var(--color-deep-green);
}

.page-blog__light-bg {
  color: #333333; /* Light bg, dark text (not used much here due to overall dark theme) */
  background: #ffffff;
}

.page-blog__medium-bg {
  color: #000000; /* Medium bg, dark text (not used much here) */
  background: var(--color-secondary);
}

/* Ensure H1 font size is not fixed to huge values on desktop */
.page-blog__main-title {
    /* No fixed font-size here to allow browser/user agent to handle, or use clamp */
}