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

.page-blog {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-main); /* Light text for dark body background */
    background-color: var(--deep-navy); /* Ensure consistency if shared.css doesn't apply to main */
}

.page-blog__container {
    max-width: 1150px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Top Section (Hero-like intro) */
.page-blog__top-section {
    padding-top: 10px; /* Small top padding as body has header offset */
    padding-bottom: 60px;
    text-align: center;
    background-color: var(--primary-color);
    background-image: linear-gradient(180deg, var(--primary-color) 0%, var(--deep-navy) 100%);
}

.page-blog__main-title {
    font-size: clamp(2.2rem, 4vw, 3.2rem); /* H1 font size with clamp */
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-main);
    margin-bottom: 20px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.page-blog__description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto 30px auto;
}

.page-blog__cta-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap; /* Allow wrapping on smaller screens */
    width: 100%; /* Ensure container takes full width */
    max-width: 600px; /* Limit width of button group */
    margin: 0 auto;
    box-sizing: border-box;
    overflow: hidden; /* Prevent overflow */
}

.page-blog__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1rem;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    max-width: 100%; /* Ensure button adapts to container */
    box-sizing: border-box;
    white-space: normal; /* Allow text to wrap */
    word-wrap: break-word; /* Allow long words to break */
}

.page-blog__btn-primary {
    background: var(--button-gradient);
    color: var(--text-main);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-blog__btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.page-blog__btn-secondary {
    background: var(--card-bg); /* Use a dark background for secondary button */
    color: var(--gold-color); /* Gold text for contrast */
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

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

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

.page-blog__section-title {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    color: var(--text-main);
    text-align: center;
    margin-bottom: 20px;
    font-weight: 600;
}

.page-blog__section-intro {
    font-size: 1rem;
    color: var(--text-secondary);
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px auto;
}

.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: 12px;
    overflow: hidden;
    box-shadow: 0 8px 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__article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.4);
}

.page-blog__article-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.page-blog__article-image {
    width: 100%;
    height: 250px; /* Fixed height for consistency in grid */
    object-fit: cover;
    display: block;
    border-bottom: 1px solid var(--divider-color);
}

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

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

.page-blog__article-excerpt {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 15px;
}

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

.page-blog__pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 30px;
}

.page-blog__pagination-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 500;
}

.page-blog__pagination-link:hover,
.page-blog__pagination-link--active {
    background: var(--button-gradient);
    color: var(--text-main);
    border-color: transparent;
}

/* Category Section */
.page-blog__category-section {
    padding: 60px 0;
    background-color: var(--primary-color);
    background-image: linear-gradient(180deg, var(--deep-navy) 0%, var(--primary-color) 100%);
}

.page-blog__categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.page-blog__category-card {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 25px;
    text-decoration: none;
    color: inherit;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--border-color);
    display: block;
}

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

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

.page-blog__category-description {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* CTA Section (Dark) */
.page-blog__cta-section {
    padding: 80px 0;
    text-align: center;
    background-color: var(--deep-navy);
    background-image: linear-gradient(180deg, var(--primary-color) 0%, var(--deep-navy) 100%);
}

.page-blog__cta-content {
    max-width: 800px;
}

.page-blog__cta-title {
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--text-main);
    margin-bottom: 20px;
    font-weight: 700;
    line-height: 1.2;
}

.page-blog__cta-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.page-blog__btn-gold {
    background: var(--gold-color);
    color: var(--primary-color); /* Dark text on gold button */
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-blog__btn-gold:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

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

    /* 1. 顶区标题 + 双 CTA */
    .page-blog__top-section {
        padding-top: 10px !important; /* Small top padding, override if needed */
        padding-bottom: 40px;
    }
    .page-blog__main-title {
        font-size: 2rem;
    }
    .page-blog__description {
        font-size: 1rem;
        padding: 0 15px;
    }
    .page-blog__cta-buttons {
        flex-direction: column; /* Stack buttons vertically */
        gap: 10px;
        padding: 0 15px;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
    .page-blog__btn {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding: 12px 15px !important; /* Adjust padding for smaller screens */
        white-space: normal !important;
        word-wrap: break-word !important;
    }

    /* 2. 单栏长文容器 (Articles Grid/Category Grid) */
    .page-blog__articles-section {
        padding: 40px 0;
    }
    .page-blog__section-title {
        font-size: 2rem;
        padding: 0 15px;
    }
    .page-blog__section-intro {
        font-size: 0.9rem;
        padding: 0 15px;
        margin-bottom: 30px;
    }
    .page-blog__articles-grid {
        grid-template-columns: 1fr; /* Single column layout */
        gap: 20px;
        padding: 0 15px;
    }
    .page-blog__article-title {
        font-size: 1.2rem;
    }
    .page-blog__article-excerpt {
        font-size: 0.9rem;
    }
    .page-blog__pagination {
        margin-top: 20px;
    }
    .page-blog__category-section {
        padding: 40px 0;
    }
    .page-blog__categories-grid {
        grid-template-columns: 1fr; /* Single column layout */
        gap: 15px;
        padding: 0 15px;
    }
    .page-blog__category-card {
        padding: 20px;
    }
    .page-blog__category-title {
        font-size: 1.2rem;
    }
    .page-blog__category-description {
        font-size: 0.9rem;
    }
    .page-blog__cta-section {
        padding: 60px 0;
    }
    .page-blog__cta-title {
        font-size: 2rem;
        padding: 0 15px;
    }
    .page-blog__cta-description {
        font-size: 1rem;
        padding: 0 15px;
        margin-bottom: 30px;
    }
    .page-blog__btn-gold {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding: 12px 15px !important;
        white-space: normal !important;
        word-wrap: break-word !important;
        margin: 0 15px; /* Add margin to gold button if it's not in a flex container */
    }

    /* 3. 通用图片与 figure */
    .page-blog img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
    }
    .page-blog__article-image {
        height: 200px; /* Adjust image height for mobile */
    }

    /* 4. 按钮与按钮容器 (already covered in Top Section and CTA Section) */
    /* Ensure general container elements are also responsive */
    .page-blog__container,
    .page-blog__section,
    .page-blog__card,
    .page-blog__articles-grid,
    .page-blog__categories-grid,
    .page-blog__cta-content {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        /* Specific padding handled by individual sections/grids */
    }

    /* 5. 注册教程与 FAQ 区块 (Not explicitly present in this blog listing page, but general text sizes are adjusted) */
    .page-blog p, .page-blog li {
        font-size: 1rem;
    }
}

/* --- Tablet Responsive Styles (max-width: 1024px) --- */
@media (max-width: 1024px) {
    .page-blog__container {
        padding: 0 30px;
    }
    .page-blog__articles-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
    .page-blog__categories-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}