/* style/tin-tuc.css */

:root {
    --primary-color: #2F6BFF;
    --secondary-color: #6FA3FF;
    --text-main-color: #1F2D3D;
    --text-dark-color: #000000;
    --bg-card-color: #FFFFFF;
    --bg-page-color: #F4F7FB;
    --border-color: #D6E2FF;
    --glow-color: #A5C4FF;
    --btn-gradient: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
}

.page-tin-tuc {
    font-family: Arial, sans-serif;
    color: var(--text-main-color); /* Default text color for light body background */
    background-color: var(--bg-page-color);
    line-height: 1.6;
    font-size: 16px;
}

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

.page-tin-tuc__hero-section {
    background-color: var(--primary-color);
    color: #ffffff;
    padding-top: 10px; /* Small top padding, body handles header offset */
    padding-bottom: 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-tin-tuc__hero-content {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.page-tin-tuc__main-title {
    font-size: clamp(2.2rem, 4vw, 3.2rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 15px;
    color: #ffffff;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.page-tin-tuc__description {
    font-size: 1.1rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.page-tin-tuc__cta-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.page-tin-tuc__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    white-space: nowrap;
    box-sizing: border-box;
    max-width: 100%;
}

.page-tin-tuc__btn-primary {
    background: var(--btn-gradient);
    color: #ffffff;
    border: none;
    box-shadow: 0 4px 15px rgba(47, 107, 255, 0.4);
}

.page-tin-tuc__btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(47, 107, 255, 0.6);
}

.page-tin-tuc__btn-secondary {
    background-color: var(--bg-card-color);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.page-tin-tuc__btn-secondary:hover {
    background-color: var(--primary-color);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(47, 107, 255, 0.3);
}

.page-tin-tuc__section {
    padding: 60px 0;
}

.page-tin-tuc__section-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--text-dark-color);
    text-align: center;
    margin-bottom: 40px;
}

.page-tin-tuc__section-title--light {
    color: #ffffff;
}

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

.page-tin-tuc__text-block--light {
    color: #ffffff;
}

.page-tin-tuc__image-figure {
    margin: 30px auto;
    max-width: 680px;
    text-align: center;
}

.page-tin-tuc__image {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.page-tin-tuc__image-caption {
    font-size: 0.9rem;
    color: #666;
    margin-top: 10px;
}

.page-tin-tuc__dark-section {
    background-color: var(--primary-color);
    color: #ffffff;
}

.page-tin-tuc__category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 40px;
}

.page-tin-tuc__category-card {
    background-color: var(--bg-card-color);
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-tin-tuc__category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.page-tin-tuc__card-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.page-tin-tuc__card-description {
    font-size: 0.95rem;
    color: var(--text-main-color);
    margin-bottom: 25px;
}

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

.page-tin-tuc__article-card {
    background-color: var(--bg-card-color);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.page-tin-tuc__article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

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

.page-tin-tuc__article-thumbnail {
    width: 100%;
    height: 200px; /* Fixed height for consistency */
    object-fit: cover;
    display: block;
}

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

.page-tin-tuc__article-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-dark-color);
    margin-bottom: 10px;
    line-height: 1.4;
}

.page-tin-tuc__article-meta {
    font-size: 0.85rem;
    color: #777;
    margin-bottom: 15px;
}

.page-tin-tuc__article-excerpt {
    font-size: 0.95rem;
    color: var(--text-main-color);
    margin-bottom: 20px;
    flex-grow: 1;
}

.page-tin-tuc__read-more {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--primary-color);
    text-decoration: none;
    display: inline-block;
}

.page-tin-tuc__read-more:hover {
    text-decoration: underline;
}

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

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

.page-tin-tuc__feature-item {
    background-color: var(--bg-card-color);
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
}

.page-tin-tuc__feature-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.page-tin-tuc__feature-description {
    font-size: 0.95rem;
    color: var(--text-main-color);
    line-height: 1.6;
}

.page-tin-tuc__promo-box {
    background: var(--btn-gradient);
    color: #ffffff;
    text-align: center;
    padding: 80px 0;
    border-radius: 10px;
    margin: 40px auto;
    box-shadow: 0 8px 25px rgba(47, 107, 255, 0.3);
}

/* Responsive styles */
@media (max-width: 1024px) {
    .page-tin-tuc__container {
        padding: 0 15px;
    }

    .page-tin-tuc__main-title {
        font-size: clamp(2rem, 5vw, 2.8rem);
    }

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

    .page-tin-tuc__category-grid,
    .page-tin-tuc__article-grid,
    .page-tin-tuc__feature-list {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
    }
}

@media (max-width: 768px) {
    /* 1. 顶区标题 + 双 CTA */
    .page-tin-tuc__hero-section {
        padding-top: 10px !important; /* Small top padding, body handles header offset */
        padding-bottom: 30px;
    }

    .page-tin-tuc__main-title {
        font-size: clamp(1.8rem, 6vw, 2.5rem) !important;
        margin-bottom: 10px;
    }

    .page-tin-tuc__description {
        font-size: 1rem;
        margin-bottom: 20px;
    }

    .page-tin-tuc__cta-buttons {
        flex-direction: column;
        gap: 10px;
        padding: 0 15px;
    }

    .page-tin-tuc__btn {
        width: 100% !important;
        max-width: 100% !important;
        white-space: normal !important;
        word-wrap: break-word !important;
        padding: 12px 15px;
    }

    /* 2. 单栏长文容器 */
    .page-tin-tuc__container {
        padding-left: 15px !important;
        padding-right: 15px !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
    }

    .page-tin-tuc__section {
        padding: 40px 0;
    }

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

    .page-tin-tuc__text-block {
        font-size: 0.95rem;
        margin-bottom: 15px;
    }

    .page-tin-tuc__category-card,
    .page-tin-tuc__article-card,
    .page-tin-tuc__feature-item {
        padding: 20px;
    }

    .page-tin-tuc__card-title,
    .page-tin-tuc__article-title,
    .page-tin-tuc__feature-title {
        font-size: 1.2rem;
    }

    .page-tin-tuc__card-description,
    .page-tin-tuc__article-excerpt,
    .page-tin-tuc__feature-description {
        font-size: 0.9rem;
    }

    /* 3. 通用图片与 figure */
    .page-tin-tuc img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }

    .page-tin-tuc__image-figure {
        margin: 20px auto;
    }

    .page-tin-tuc__article-thumbnail {
        height: 180px;
    }

    /* 4. 按钮与按钮容器 - 已在顶区 CTA 中处理，此处为通用兜底 */
    .page-tin-tuc__view-all-button-wrapper .page-tin-tuc__btn {
        width: calc(100% - 30px) !important; /* Account for container padding */
        max-width: calc(100% - 30px) !important;
    }

    /* 5. 注册教程与 FAQ 区块 - N/A for this page, but structure included for completeness */
    /* (This page does not have a dedicated registration tutorial or FAQ accordion) */

    .page-tin-tuc__promo-box {
        padding: 50px 15px;
        margin: 30px 15px;
    }
}

@media (max-width: 480px) {
    .page-tin-tuc__section-title {
        font-size: 1.6rem;
    }

    .page-tin-tuc__article-thumbnail {
        height: 150px;
    }

    .page-tin-tuc__promo-box {
        margin: 20px 10px;
    }
}