:root {
    --color-primary: #11A84E;
    --color-secondary: #22C768;
    --color-button-gradient-start: #2AD16F;
    --color-button-gradient-end: #13994A;
    --color-card-bg: #11271B;
    --color-background: #08160F;
    --color-text-main: #F2FFF6;
    --color-text-secondary: #A7D9B8;
    --color-border: #2E7A4E;
    --color-glow: #57E38D;
    --color-gold: #F2C14E;
    --color-divider: #1E3A2A;
    --color-deep-green: #0A4B2C;
}

.page-blog {
    background-color: var(--color-background); /* Sử dụng màu nền đã định nghĩa */
    color: var(--color-text-main); /* Sử dụng màu chữ chính */
    font-family: Arial, sans-serif;
    line-height: 1.6;
}

.page-blog h1,
.page-blog h2,
.page-blog h3 {
    color: var(--color-gold); /* Tiêu đề sử dụng màu vàng gold */
    margin-bottom: 1em;
    font-weight: bold;
}

.page-blog h1 {
    font-size: clamp(2rem, 5vw, 3.5rem); /* H1 không dùng font-size cố định quá lớn */
    text-align: center;
    line-height: 1.2;
}

.page-blog h2 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    text-align: center;
    color: var(--color-text-main); /* Tiêu đề section dùng màu chữ chính */
    margin-bottom: 1.5em;
}

.page-blog h3 {
    font-size: clamp(1.4rem, 3vw, 2rem);
    color: var(--color-text-main); /* Tiêu đề bài viết dùng màu chữ chính */
}

.page-blog p {
    color: var(--color-text-secondary); /* Đoạn văn dùng màu chữ phụ */
    margin-bottom: 1em;
}

.page-blog a {
    color: var(--color-glow); /* Link dùng màu glow */
    text-decoration: none;
}

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

.page-blog__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px; /* Thêm padding ngang để nội dung không chạm rìa */
    box-sizing: border-box;
}

/* Hero Section */
.page-blog__hero-section {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column; /* Đảm bảo hình ảnh trên, nội dung dưới */
    align-items: center;
    padding: 10px 0 60px; /* Chỉ dùng 10px padding-top, không dùng var(--header-offset) */
    background-color: var(--color-deep-green); /* Nền cho hero section */
}

.page-blog__hero-image {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
    max-height: 600px; /* Giới hạn chiều cao hero image */
    border-radius: 8px;
    margin-bottom: 30px;
}

.page-blog__hero-content {
    max-width: 900px;
    text-align: center;
    padding: 0 20px;
}

.page-blog__hero-description {
    font-size: 1.1rem;
    margin-bottom: 30px;
}

.page-blog__cta-button {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: bold;
    text-transform: uppercase;
    text-decoration: none;
    transition: all 0.3s ease;
    background: linear-gradient(180deg, var(--color-button-gradient-start) 0%, var(--color-button-gradient-end) 100%);
    color: var(--color-text-main); /* Nút dùng màu chữ chính */
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.page-blog__cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
    opacity: 0.9;
}

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

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

.page-blog__article-card {
    background-color: var(--color-card-bg); /* Card dùng màu nền card */
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px 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(-8px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.page-blog__article-image-wrapper {
    width: 100%;
    height: 220px; /* Chiều cao cố định cho hình ảnh card */
    overflow: hidden;
}

.page-blog__article-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
    display: block; /* Đảm bảo img là block để dễ kiểm soát width/height */
}

.page-blog__article-card:hover .page-blog__article-image {
    transform: scale(1.05);
}

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

.page-blog__article-title {
    margin-top: 0;
    margin-bottom: 10px;
    font-size: 1.3rem;
    line-height: 1.4;
}

.page-blog__article-title a {
    color: var(--color-text-main); /* Tiêu đề bài viết link dùng màu chữ chính */
}

.page-blog__article-title a:hover {
    color: var(--color-gold);
    text-decoration: none;
}

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

.page-blog__article-excerpt {
    font-size: 1em;
    color: var(--color-text-secondary);
    flex-grow: 1; /* Đảm bảo excerpt chiếm đủ không gian */
    margin-bottom: 20px;
}

.page-blog__read-more-link {
    display: inline-block;
    color: var(--color-glow);
    font-weight: bold;
    text-decoration: none;
    align-self: flex-start; /* Canh chỉnh link "Đọc thêm" */
}

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

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

.page-blog__view-all-button {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: bold;
    text-transform: uppercase;
    text-decoration: none;
    transition: all 0.3s ease;
    background: transparent;
    color: var(--color-glow);
    border: 2px solid var(--color-glow);
    cursor: pointer;
}

.page-blog__view-all-button:hover {
    background: var(--color-glow);
    color: var(--color-deep-green);
    border-color: var(--color-glow);
}

/* FAQ Section */
.page-blog__faq-section {
    padding: 60px 0;
    background-color: var(--color-deep-green); /* Nền cho FAQ section */
}

.page-blog__faq-list {
    margin-top: 40px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.page-blog__faq-item {
    background-color: var(--color-card-bg); /* Item FAQ dùng màu nền card */
    border: 1px solid var(--color-border); /* Viền cho FAQ item */
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    transition: background-color 0.3s ease;
}

.page-blog__faq-item summary {
    list-style: none; /* Ẩn marker mặc định */
    cursor: pointer;
    padding: 20px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: bold;
    font-size: 1.1rem;
    color: var(--color-text-main); /* Tiêu đề câu hỏi dùng màu chữ chính */
    transition: color 0.3s ease;
}

.page-blog__faq-item summary::-webkit-details-marker {
    display: none; /* Ẩn marker trên WebKit */
}

.page-blog__faq-item summary:hover {
    color: var(--color-gold);
}

.page-blog__faq-toggle {
    font-size: 1.5rem;
    line-height: 1;
    margin-left: 15px;
    color: var(--color-glow);
}

.page-blog__faq-item[open] .page-blog__faq-toggle {
    color: var(--color-gold);
}

.page-blog__faq-answer {
    padding: 0 25px 20px;
    font-size: 1em;
    color: var(--color-text-secondary); /* Câu trả lời dùng màu chữ phụ */
}

/* CTA Section */
.page-blog__cta-section {
    padding: 60px 0;
    background-color: var(--color-background);
    text-align: center;
}

.page-blog__section-description {
    max-width: 800px;
    margin: 0 auto 40px;
    font-size: 1.1rem;
    color: var(--color-text-secondary);
}

.page-blog__cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

.page-blog__cta-button--primary {
    background: linear-gradient(180deg, var(--color-button-gradient-start) 0%, var(--color-button-gradient-end) 100%);
    color: var(--color-text-main);
    border: none;
}

.page-blog__cta-button--secondary {
    background: transparent;
    border: 2px solid var(--color-glow);
    color: var(--color-glow);
}

.page-blog__cta-button--secondary:hover {
    background: var(--color-glow);
    color: var(--color-deep-green);
    border-color: var(--color-glow);
}


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

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

    .page-blog__hero-section {
        padding: 10px 0 40px;
    }

    .page-blog__hero-image {
        max-height: 400px;
        margin-bottom: 20px;
    }

    .page-blog__main-title {
        font-size: clamp(1.8rem, 7vw, 2.5rem);
    }

    .page-blog__hero-description {
        font-size: 1rem;
        margin-bottom: 20px;
    }

    .page-blog__cta-button {
        padding: 12px 20px;
        font-size: 1rem;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }

    .page-blog__articles-section,
    .page-blog__faq-section,
    .page-blog__cta-section {
        padding: 40px 0;
    }

    .page-blog__section-title {
        font-size: clamp(1.6rem, 6vw, 2.2rem);
    }

    .page-blog__article-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .page-blog__article-image-wrapper {
        height: 180px;
    }

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

    .page-blog__faq-item summary {
        font-size: 1rem;
        padding: 15px 20px;
    }

    .page-blog__faq-answer {
        padding: 0 20px 15px;
    }

    .page-blog__cta-buttons {
        flex-direction: column;
        gap: 15px;
        padding: 0 15px; /* Thêm padding cho các nút CTA */
    }
    
    /* Responsive image rules */
    .page-blog img {
      max-width: 100% !important;
      width: 100% !important;
      height: auto !important;
      display: block !important;
    }
    
    .page-blog__section,
    .page-blog__card,
    .page-blog__container,
    .page-blog__article-image-wrapper {
      max-width: 100% !important;
      width: 100% !important;
      box-sizing: border-box !important;
      overflow: hidden !important; /* Ensure content doesn't overflow */
    }

    .page-blog__hero-content,
    .page-blog__article-content,
    .page-blog__faq-list {
      max-width: 100% !important;
      width: 100% !important;
      box-sizing: border-box !important;
    }

    .page-blog__video-section {
        padding-top: 10px !important; /* body đã承担 --header-offset，此处禁止 var(--header-offset) */
    }
}