/* style/khuyen-mai.css */

:root {
    --primary-color: #E53935;
    --secondary-color: #FF5A4F;
    --text-main-color: #333333;
    --card-bg-color: #FFFFFF;
    --background-light: #F5F7FA;
    --border-color: #E0E0E0;
    --button-gradient: linear-gradient(180deg, #FF5A4F 0%, #E53935 100%);
}

.page-khuyen-mai {
    font-family: 'Arial', sans-serif;
    color: var(--text-main-color);
    background-color: var(--background-light);
    line-height: 1.6;
    font-size: 16px;
}

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

.page-khuyen-mai__top-section {
    padding-top: 10px; /* Aligns with shared body padding-top */
    padding-bottom: 40px;
    background-color: var(--primary-color);
    color: #ffffff;
    text-align: center;
}

.page-khuyen-mai__main-title {
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 15px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    color: #ffffff;
    font-size: clamp(2.2rem, 4vw, 3.5rem);
}

.page-khuyen-mai__description {
    font-size: 1.15em;
    margin-bottom: 30px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    color: rgba(255, 255, 255, 0.9);
}

.page-khuyen-mai__top-cta {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.page-khuyen-mai__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 25px;
    border-radius: 8px;
    font-size: 1.05em;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    box-sizing: border-box;
    max-width: 100%;
}

.page-khuyen-mai__btn-primary {
    background: var(--button-gradient);
    color: #ffffff;
    border: 2px solid transparent;
}

.page-khuyen-mai__btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.page-khuyen-mai__btn-secondary {
    background-color: #ffffff;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.page-khuyen-mai__btn-secondary:hover {
    background-color: var(--primary-color);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.page-khuyen-mai__btn-block {
    width: 100%;
    max-width: 300px;
    margin-top: 20px;
    margin-left: auto;
    margin-right: auto;
}

.page-khuyen-mai__section {
    padding: 50px 0;
}

.page-khuyen-mai__section:nth-of-type(even) {
    background-color: #fcfcfc;
}

.page-khuyen-mai__heading {
    font-size: 2.5em;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 40px;
    font-weight: 700;
}

.page-khuyen-mai__sub-heading {
    font-size: 1.8em;
    color: var(--text-main-color);
    margin-top: 30px;
    margin-bottom: 15px;
    font-weight: 600;
}

.page-khuyen-mai__figure {
    margin: 25px 0;
    text-align: center;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.page-khuyen-mai__image {
    max-width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    width: 100%;
}

.page-khuyen-mai__figcaption {
    font-size: 0.9em;
    color: #666;
    padding: 10px;
    background-color: #f0f0f0;
}

.page-khuyen-mai p {
    margin-bottom: 15px;
    font-size: 1em;
    color: var(--text-main-color);
}

.page-khuyen-mai__list-steps,
.page-khuyen-mai__list-terms,
.page-khuyen-mai__list-tips {
    list-style: none;
    padding: 0;
    margin: 0;
}

.page-khuyen-mai__list-item {
    background-color: var(--card-bg-color);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s ease;
}

.page-khuyen-mai__list-item:hover {
    transform: translateY(-5px);
}

.page-khuyen-mai__step-title,
.page-khuyen-mai__tip-title {
    font-size: 1.5em;
    color: var(--primary-color);
    margin-bottom: 10px;
    font-weight: 600;
}

.page-khuyen-mai__info-card {
    background-color: #fff3cd;
    border-left: 5px solid #ffc107;
    padding: 20px;
    border-radius: 8px;
    margin-top: 30px;
    margin-bottom: 30px;
    color: #664d03;
}

.page-khuyen-mai__card-title {
    font-size: 1.3em;
    color: #664d03;
    margin-top: 0;
    margin-bottom: 10px;
}

.page-khuyen-mai__faq-item {
    background-color: var(--card-bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 15px;
    padding: 20px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.03);
}

.page-khuyen-mai__faq-question {
    font-size: 1.2em;
    color: var(--primary-color);
    margin: 0;
    font-weight: 600;
    cursor: pointer;
}

.page-khuyen-mai__faq-answer {
    font-size: 1em;
    color: var(--text-main-color);
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px dashed var(--border-color);
}

.page-khuyen-mai__ket-luan {
    text-align: center;
    padding-top: 40px;
    padding-bottom: 60px;
    background-color: var(--primary-color);
    color: #ffffff;
}

.page-khuyen-mai__ket-luan .page-khuyen-mai__heading {
    color: #ffffff;
}

.page-khuyen-mai__ket-luan p {
    color: rgba(255, 255, 255, 0.9);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 25px;
}

.page-khuyen-mai__bottom-cta {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 30px;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .page-khuyen-mai__main-title {
        font-size: clamp(2rem, 5vw, 3rem);
    }

    .page-khuyen-mai__heading {
        font-size: 2em;
        margin-bottom: 30px;
    }

    .page-khuyen-mai__sub-heading {
        font-size: 1.6em;
    }

    .page-khuyen-mai__section {
        padding: 40px 0;
    }
}

@media (max-width: 768px) {
    .page-khuyen-mai {
        font-size: 15px;
        line-height: 1.6;
    }

    /* 顶区标题 + 双 CTA */
    .page-khuyen-mai__top-section {
        padding-top: 10px !important; /* Fixed header padding */
        padding-bottom: 30px;
    }

    .page-khuyen-mai__main-title {
        font-size: clamp(1.8rem, 7vw, 2.5rem);
        margin-bottom: 10px;
    }

    .page-khuyen-mai__description {
        font-size: 1em;
        margin-bottom: 20px;
        padding: 0 15px;
    }

    .page-khuyen-mai__top-cta {
        flex-direction: column;
        gap: 10px;
        padding: 0 15px;
    }

    .page-khuyen-mai__btn {
        width: 100% !important;
        max-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__btn-block {
        max-width: 100% !important;
        width: 100% !important;
    }

    /* 单栏长文容器 */
    .page-khuyen-mai__article-wrap {
        padding: 0 15px;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }

    .page-khuyen-mai__section {
        padding: 30px 0;
    }

    .page-khuyen-mai__heading {
        font-size: 1.8em;
        margin-bottom: 25px;
    }

    .page-khuyen-mai__sub-heading {
        font-size: 1.4em;
    }

    /* 通用图片与 figure */
    .page-khuyen-mai__figure {
        margin: 20px 0;
    }

    .page-khuyen-mai__image {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        box-sizing: border-box !important;
    }

    .page-khuyen-mai__list-item {
        padding: 15px;
    }

    .page-khuyen-mai__step-title,
    .page-khuyen-mai__tip-title {
        font-size: 1.3em;
    }

    .page-khuyen-mai__info-card {
        padding: 15px;
        margin-top: 20px;
        margin-bottom: 20px;
    }

    .page-khuyen-mai__card-title {
        font-size: 1.1em;
    }

    /* FAQ 区块 */
    .page-khuyen-mai__faq-item {
        padding: 15px;
        margin-bottom: 10px;
    }

    .page-khuyen-mai__faq-question {
        font-size: 1.1em;
    }

    .page-khuyen-mai__faq-answer {
        font-size: 0.95em;
    }

    .page-khuyen-mai__ket-luan {
        padding-top: 30px;
        padding-bottom: 40px;
    }

    .page-khuyen-mai__bottom-cta {
        flex-direction: column;
        gap: 10px;
        margin-top: 20px;
        padding: 0 15px;
    }
}