/* Biến màu sắc */
:root {
    --primary-color: #F2C14E;
    --secondary-color: #FFD36B;
    --button-gradient: linear-gradient(180deg, #FFD86A 0%, #DDA11D 100%);
    --card-bg: #111111;
    --background-color-page: #0A0A0A;
    --text-main-color: #FFF6D6;
    --border-color: #3A2A12;
    --glow-color: #FFD36B;
}

/* Quy tắc chung cho trang blog */
.page-blog {
    font-family: Arial, sans-serif;
    color: var(--text-main-color);
    background-color: var(--background-color-page);
}

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

/* Hero Section */
.page-blog__hero-section {
    position: relative;
    padding-top: 10px; /* Nhỏ hơn so với header-offset của body */
    padding-bottom: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.page-blog__hero-image-wrapper {
    width: 100%;
    height: 500px;
    overflow: hidden;
    position: relative;
    margin-bottom: 30px;
}

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

.page-blog__hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    padding: 0 20px;
}

.page-blog__main-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    color: var(--text-main-color);
    margin-bottom: 20px;
    font-weight: 700;
    line-height: 1.2;
}

.page-blog__description {
    font-size: 1.15rem;
    line-height: 1.8;
    margin-bottom: 30px;
    color: var(--text-main-color);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page-blog__cta-button {
    display: inline-block;
    background: var(--button-gradient);
    color: #000000; /* Màu chữ đen để tương phản với gradient vàng */
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    border: none;
    cursor: pointer;
}

.page-blog__cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* General Section Styles */
.page-blog__section {
    padding: 60px 0;
}

.page-blog__section-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    color: var(--secondary-color);
    text-align: center;
    margin-bottom: 40px;
    font-weight: 700;
}

.page-blog__text-block {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-main-color);
    text-align: center;
    max-width: 900px;
    margin: 0 auto 40px auto;
}

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

.page-blog__post-card {
    background-color: var(--card-bg);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--border-color);
}

.page-blog__post-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

.page-blog__post-link {
    text-decoration: none;
    display: block;
    height: 100%;
    color: var(--text-main-color);
}

.page-blog__post-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
}

.page-blog__post-content {
    padding: 20px;
}

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

.page-blog__post-meta {
    font-size: 0.9rem;
    color: #AAAAAA;
    margin-bottom: 15px;
}

.page-blog__post-excerpt {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-main-color);
}

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

.page-blog__view-all-button {
    display: inline-block;
    background: var(--primary-color);
    color: #000000; /* Màu chữ đen để tương phản */
    padding: 12px 25px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

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

/* Category Overview */
.page-blog__categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.page-blog__category-card {
    background-color: var(--card-bg);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    text-align: center;
    padding: 25px;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.page-blog__category-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 15px;
}

.page-blog__category-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 20px;
}

.page-blog__category-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.page-blog__category-description {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-main-color);
    margin-bottom: 20px;
    flex-grow: 1;
}

.page-blog__category-button {
    display: inline-block;
    background: var(--primary-color);
    color: #000000;
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s ease;
    margin-top: 15px;
}

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

.page-blog__button-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-top: 15px;
}

.page-blog__button-group .page-blog__category-button {
    flex: 1 1 auto;
    max-width: 48%;
}

/* CTA Section */
.page-blog__cta-section {
    background-color: var(--primary-color);
    padding: 80px 0;
    text-align: center;
    color: #000000; /* Text on primary color background */
}

.page-blog__cta-section .page-blog__section-title {
    color: #000000;
}

.page-blog__cta-section .page-blog__text-block {
    color: #000000;
}

.page-blog__cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
}

.page-blog__btn-primary {
    background: var(--button-gradient);
    color: #000000;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    border: none;
    cursor: pointer;
}

.page-blog__btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-blog__btn-secondary {
    background: #ffffff;
    color: var(--primary-color);
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
    border: 2px solid var(--primary-color);
    cursor: pointer;
}

.page-blog__btn-secondary:hover {
    background-color: var(--primary-color);
    color: #000000;
    border-color: var(--primary-color);
}

/* FAQ Section */
.page-blog__faq-section {
    padding-bottom: 80px;
}

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

details.page-blog__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  border: 1px solid var(--border-color);
  overflow: hidden;
  background: var(--card-bg);
}
details.page-blog__faq-item summary.page-blog__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;
  color: var(--secondary-color);
}
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(255, 255, 255, 0.05); /* Lighten card-bg slightly */
}
.page-blog__faq-qtext {
  flex: 1;
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
}
.page-blog__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: var(--secondary-color);
  flex-shrink: 0;
  margin-left: 15px;
  width: 28px;
  text-align: center;
}
details.page-blog__faq-item .page-blog__faq-answer {
  padding: 0 20px 20px;
  background: rgba(0, 0, 0, 0.2); /* Slightly lighter than card-bg for contrast */
  border-radius: 0 0 5px 5px;
  color: var(--text-main-color);
  font-size: 1rem;
  line-height: 1.7;
}
.page-blog__faq-answer p {
    margin-top: 0;
    margin-bottom: 0;
}
.page-blog__faq-answer a {
    color: var(--secondary-color);
    text-decoration: underline;
}

/* Global image responsiveness */
.page-blog img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .page-blog__main-title {
        font-size: clamp(2rem, 4.5vw, 3rem);
    }
    .page-blog__description {
        font-size: 1.05rem;
    }
    .page-blog__section-title {
        font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    }
    .page-blog__hero-image-wrapper {
        height: 400px;
    }
    .page-blog__post-image {
        height: 180px;
    }
    .page-blog__post-title {
        font-size: 1.2rem;
    }
    .page-blog__category-image {
        height: 180px;
    }
    .page-blog__category-title {
        font-size: 1.3rem;
    }
    .page-blog__category-button {
        padding: 9px 18px;
        font-size: 0.95rem;
    }
    .page-blog__btn-primary, .page-blog__btn-secondary {
        padding: 13px 25px;
        font-size: 1rem;
    }
}

@media (max-width: 768px) {
    .page-blog__container {
        padding: 15px;
    }

    /* HERO 主图区域 */
    .page-blog__hero-section {
        padding-top: 10px; /* 顶距约 10px */
        padding-bottom: 40px;
    }
    .page-blog__hero-image-wrapper {
        height: 250px;
        margin-bottom: 20px;
    }
    .page-blog__hero-image {
        object-fit: contain !important; /* 禁止 cover 裁切两侧 */
        aspect-ratio: unset !important;
    }
    .page-blog__main-title {
        font-size: clamp(1.8rem, 7vw, 2.5rem);
        margin-bottom: 15px;
    }
    .page-blog__description {
        font-size: 0.95rem;
        margin-bottom: 25px;
    }
    .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;
    }

    /* 产品展示图区域 (通用图片和容器) */
    .page-blog__posts-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .page-blog__category-overview .page-blog__posts-grid, /* Ensures all grids respond */
    .page-blog__categories-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .page-blog__post-image,
    .page-blog__category-image {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }
    .page-blog__section,
    .page-blog__card,
    .page-blog__container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }

    /* 装饰主标题 + 长文 SEO 区 */
    .page-blog__section-title {
        font-size: clamp(1.5rem, 6vw, 2.2rem);
        margin-bottom: 30px;
    }
    .page-blog__text-block {
        font-size: 0.95rem;
        margin-bottom: 30px;
        text-align: left; /* Align text left for better readability on mobile */
    }
    .page-blog__article-body {
        max-width: 100%;
        padding: 0 15px;
        box-sizing: border-box;
    }
    .page-blog__article-figure {
        margin: 20px 0; /* Adjust spacing */
    }

    /* Buttons and Button Containers */
    .page-blog__cta-buttons {
        flex-direction: column;
        gap: 15px;
    }
    .page-blog__btn-primary,
    .page-blog__btn-secondary {
        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__button-group .page-blog__category-button {
        max-width: 100%;
    }

    /* FAQ */
    details.page-blog__faq-item summary.page-blog__faq-question {
        padding: 15px;
    }
    .page-blog__faq-qtext {
        font-size: 1rem;
    }
    .page-blog__faq-toggle {
        font-size: 20px;
        width: 24px;
    }
    details.page-blog__faq-item .page-blog__faq-answer {
        padding: 0 15px 15px;
    }

    /* Ensure all images inside page-blog are responsive */
    .page-blog img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }
}