/* style/khuyen-mai.css */
.page-khuyen-mai {
    font-family: Arial, sans-serif;
    color: #333333;
    line-height: 1.6;
}

.page-khuyen-mai__hero-section {
    padding-top: 10px; /* Consistent with fixed header spacing rule */
    padding-bottom: 60px;
    background-color: #FFFFFF;
    color: #333333;
}

.page-khuyen-mai__hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 40px;
    padding: 20px;
}

.page-khuyen-mai__hero-content {
    flex: 1 1 50%;
    min-width: 300px;
}

.page-khuyen-mai__hero-title {
    font-size: clamp(2.2rem, 4vw, 3.5rem);
    color: #26A9E0;
    margin-bottom: 20px;
    font-weight: bold;
    line-height: 1.2;
}

.page-khuyen-mai__hero-description {
    font-size: 1.1rem;
    margin-bottom: 30px;
    color: #555555;
}

.page-khuyen-mai__hero-cta-group {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
    white-space: normal;
    word-wrap: break-word;
    box-sizing: border-box;
    text-align: center;
}

.page-khuyen-mai__btn-primary {
    background-color: #26A9E0;
    color: #FFFFFF;
    border: 2px solid #26A9E0;
}

.page-khuyen-mai__btn-primary:hover {
    background-color: #1e87b7;
    border-color: #1e87b7;
}

.page-khuyen-mai__btn-secondary {
    background-color: #FFFFFF;
    color: #26A9E0;
    border: 2px solid #26A9E0;
}

.page-khuyen-mai__btn-secondary:hover {
    background-color: #e0f2f7;
    color: #1e87b7;
    border-color: #1e87b7;
}

.page-khuyen-mai__hero-image {
    flex: 1 1 40%;
    min-width: 250px;
    text-align: center;
}

.page-khuyen-mai__hero-main-img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    min-width: 200px; /* Min size requirement */
    min-height: 200px; /* Min size requirement */
}

.page-khuyen-mai__promo-grid-section {
    padding: 60px 0;
}

.page-khuyen-mai__light-bg {
    background-color: #f8f8f8;
    color: #333333;
}

.page-khuyen-mai__dark-bg {
    background-color: #26A9E0;
    color: #FFFFFF;
}

.page-khuyen-mai__content-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.page-khuyen-mai__section-title {
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    color: #26A9E0;
    text-align: center;
    margin-bottom: 20px;
    font-weight: bold;
}

.page-khuyen-mai__section-title--light {
    color: #FFFFFF;
}

.page-khuyen-mai__section-description {
    font-size: 1rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
    color: #555555;
}

.page-khuyen-mai__dark-bg .page-khuyen-mai__section-description {
    color: #e0e0e0;
}

.page-khuyen-mai__promo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    justify-content: center;
}

.page-khuyen-mai__promo-card {
    background-color: #FFFFFF;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    padding: 25px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

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

.page-khuyen-mai__promo-card-img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 20px;
    min-width: 200px; /* Min size requirement */
    min-height: 200px; /* Min size requirement */
    object-fit: cover;
}

.page-khuyen-mai__promo-card-title {
    font-size: 1.4rem;
    color: #26A9E0;
    margin-bottom: 15px;
    font-weight: bold;
}

.page-khuyen-mai__promo-card-text {
    font-size: 0.95rem;
    color: #666666;
    margin-bottom: 20px;
    flex-grow: 1;
}

.page-khuyen-mai__btn-text-link {
    color: #26A9E0;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s ease;
}

.page-khuyen-mai__btn-text-link:hover {
    color: #1e87b7;
    text-decoration: underline;
}

.page-khuyen-mai__faq-section {
    padding: 60px 0;
}

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

.page-khuyen-mai__faq-item {
    background-color: #FFFFFF;
    border-radius: 8px;
    margin-bottom: 15px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

.page-khuyen-mai__faq-item summary {
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    font-size: 1.15rem;
    font-weight: bold;
    color: #333333;
    cursor: pointer;
    outline: none;
    position: relative;
}

.page-khuyen-mai__faq-item summary::-webkit-details-marker {
    display: none;
}

.page-khuyen-mai__faq-qtext {
    flex-grow: 1;
    color: #26A9E0;
}

.page-khuyen-mai__faq-toggle {
    font-size: 1.8rem;
    line-height: 1;
    margin-left: 15px;
    transition: transform 0.3s ease;
    color: #26A9E0;
}

.page-khuyen-mai__faq-item[open] .page-khuyen-mai__faq-toggle {
    transform: rotate(45deg);
}

.page-khuyen-mai__faq-answer {
    padding: 0 25px 20px;
    font-size: 1rem;
    color: #555555;
    line-height: 1.7;
}

.page-khuyen-mai__faq-answer p {
    margin-bottom: 0;
}

.page-khuyen-mai__cta-section {
    padding: 60px 0;
    text-align: center;
}

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

/* Mobile responsive styles */
@media (max-width: 768px) {
    .page-khuyen-mai {
        font-size: 16px;
        line-height: 1.5;
    }

    /* HERO 双栏 */
    .page-khuyen-mai__hero-section {
        padding-top: 10px !important;
        padding-bottom: 40px;
    }

    .page-khuyen-mai__hero-container {
        flex-direction: column;
        gap: 20px;
        padding: 15px;
    }

    .page-khuyen-mai__hero-content,
    .page-khuyen-mai__hero-image {
        flex: 1 1 100%;
        min-width: unset;
    }

    .page-khuyen-mai__hero-title {
        font-size: clamp(1.8rem, 8vw, 2.5rem);
        text-align: center;
    }

    .page-khuyen-mai__hero-description {
        font-size: 1rem;
        text-align: center;
    }

    .page-khuyen-mai__hero-cta-group {
        flex-direction: column;
        gap: 10px;
        padding: 0 15px;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }

    /* 按钮与按钮容器 */
    .page-khuyen-mai__btn-primary,
    .page-khuyen-mai__btn-secondary,
    .page-khuyen-mai a[class*="button"],
    .page-khuyen-mai 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-khuyen-mai__hero-cta-group {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        flex-wrap: wrap !important;
    }

    /* 模块1 三栏正圆图 - Not directly present, but general image/card styles apply */
    /* 七 Tab 游戏区 - Not present on this page */

    /* 教程长文 / 促销 / 信任 / FAQ / 博客 / intro 排版 */
    .page-khuyen-mai__promo-grid-section,
    .page-khuyen-mai__faq-section,
    .page-khuyen-mai__cta-section {
        padding: 40px 0;
    }

    .page-khuyen-mai__content-container {
        padding: 0 15px;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }

    .page-khuyen-mai__section-title {
        font-size: clamp(1.5rem, 7vw, 2.2rem);
        margin-bottom: 15px;
    }

    .page-khuyen-mai__section-description {
        font-size: 0.95rem;
        margin-bottom: 30px;
    }

    .page-khuyen-mai__promo-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .page-khuyen-mai__promo-card {
        padding: 20px;
    }

    .page-khuyen-mai__promo-card-img {
        min-width: 200px !important;
        min-height: 200px !important;
    }

    .page-khuyen-mai__promo-card-title {
        font-size: 1.2rem;
    }

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

    .page-khuyen-mai__faq-answer {
        padding: 0 20px 15px;
        font-size: 0.95rem;
    }

    /* 通用图片与容器 */
    .page-khuyen-mai img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }

    .page-khuyen-mai__section,
    .page-khuyen-mai__card,
    .page-khuyen-mai__container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }
}