/* Base styles for the Khuyến Mãi page */
.page-khuyen-mai {
    background-color: #08160F;
    color: #F2FFF6;
    font-family: Arial, sans-serif;
}

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

.page-khuyen-mai__section-title {
    font-size: clamp(28px, 4vw, 38px);
    font-weight: 700;
    text-align: center;
    margin-bottom: 20px;
    color: #F2FFF6;
    line-height: 1.2;
}

.page-khuyen-mai__section-description {
    font-size: 18px;
    line-height: 1.6;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
    color: #A7D9B8;
}

/* Hero Section */
.page-khuyen-mai__hero-section {
    position: relative;
    padding-top: 10px; /* Small top padding as body handles header offset */
    padding-bottom: 50px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.page-khuyen-mai__hero-image {
    width: 100%;
    max-height: 600px;
    overflow: hidden;
    margin-bottom: 30px;
}

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

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

.page-khuyen-mai__main-title {
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 800;
    margin-bottom: 20px;
    color: #F2FFF6;
    line-height: 1.1;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.page-khuyen-mai__hero-description {
    font-size: 20px;
    line-height: 1.7;
    margin-bottom: 30px;
    color: #A7D9B8;
}

.page-khuyen-mai__hero-cta {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 15px 30px;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s ease;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
    text-align: center;
}

.page-khuyen-mai__btn-primary {
    background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
    color: #F2FFF6;
    border: none;
    box-shadow: 0 4px 15px rgba(34, 199, 104, 0.4);
}

.page-khuyen-mai__btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(34, 199, 104, 0.6);
}

.page-khuyen-mai__btn-secondary {
    background: transparent;
    color: #57E38D;
    border: 2px solid #57E38D;
}

.page-khuyen-mai__btn-secondary:hover {
    background: rgba(87, 227, 141, 0.1);
    color: #F2FFF6;
}

.page-khuyen-mai__btn-small {
    padding: 10px 20px;
    font-size: 16px;
}

/* Overview Section */
.page-khuyen-mai__overview-section {
    padding: 60px 0;
    background-color: #08160F;
    border-top: 1px solid #1E3A2A;
}

.page-khuyen-mai__dark-bg {
    background-color: #08160F;
    color: #F2FFF6;
}

.page-khuyen-mai__light-bg {
    background-color: #11271B;
    color: #F2FFF6;
}

.page-khuyen-mai__features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-khuyen-mai__feature-item {
    text-align: center;
    padding: 30px;
    background-color: #11271B;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
    border: 1px solid #2E7A4E;
}

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

.page-khuyen-mai__feature-item img {
    
    
    margin-bottom: 20px;
    object-fit: contain;
}

.page-khuyen-mai__feature-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 15px;
    color: #F2FFF6;
}

.page-khuyen-mai__feature-text {
    font-size: 16px;
    line-height: 1.6;
    color: #A7D9B8;
}

/* Promotion Categories Section */
.page-khuyen-mai__promotion-categories {
    padding: 80px 0;
    background-color: #08160F;
}

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

.page-khuyen-mai__category-card {
    background-color: #11271B;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease;
    border: 1px solid #2E7A4E;
}

.page-khuyen-mai__category-card:hover {
    transform: translateY(-5px);
}

.page-khuyen-mai__category-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.page-khuyen-mai__category-card .page-khuyen-mai__card-title {
    font-size: 22px;
    font-weight: 700;
    margin: 20px 20px 10px;
    color: #F2FFF6;
}

.page-khuyen-mai__category-card .page-khuyen-mai__card-text {
    font-size: 16px;
    line-height: 1.6;
    color: #A7D9B8;
    margin: 0 20px 20px;
    flex-grow: 1;
}

.page-khuyen-mai__category-card .page-khuyen-mai__btn-primary {
    align-self: flex-start;
    margin: 0 20px 20px;
}

/* How To Claim Section */
.page-khuyen-mai__how-to-claim {
    padding: 80px 0;
    background-color: #08160F;
    border-top: 1px solid #1E3A2A;
}

.page-khuyen-mai__steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-khuyen-mai__step-item {
    background-color: #11271B;
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    border: 1px solid #2E7A4E;
}

.page-khuyen-mai__step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: #11A84E;
    color: #F2FFF6;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
    box-shadow: 0 4px 10px rgba(17, 168, 78, 0.4);
}

.page-khuyen-mai__step-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
    color: #F2FFF6;
}

.page-khuyen-mai__step-text {
    font-size: 16px;
    line-height: 1.6;
    color: #A7D9B8;
}

.page-khuyen-mai__step-text a {
    color: #57E38D;
    text-decoration: none;
}

.page-khuyen-mai__step-text a:hover {
    text-decoration: underline;
}

.page-khuyen-mai__cta-bottom {
    text-align: center;
    margin-top: 50px;
}

/* Terms Section */
.page-khuyen-mai__terms-section {
    padding: 80px 0;
    background-color: #11271B;
    border-top: 1px solid #1E3A2A;
    color: #F2FFF6;
}

.page-khuyen-mai__terms-section .page-khuyen-mai__section-title,
.page-khuyen-mai__terms-section .page-khuyen-mai__section-description {
    color: #F2FFF6;
}

.page-khuyen-mai__terms-list {
    list-style: none;
    padding: 0;
    margin-top: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page-khuyen-mai__terms-list li {
    background-color: #08160F;
    padding: 20px;
    margin-bottom: 15px;
    border-radius: 8px;
    font-size: 16px;
    line-height: 1.7;
    color: #A7D9B8;
    border-left: 5px solid #11A84E;
}

.page-khuyen-mai__list-strong {
    color: #F2FFF6;
    font-weight: 700;
}

.page-khuyen-mai__additional-info {
    text-align: center;
    margin-top: 30px;
    font-size: 16px;
    color: #A7D9B8;
}

.page-khuyen-mai__additional-info a {
    color: #57E38D;
    text-decoration: none;
}

.page-khuyen-mai__additional-info a:hover {
    text-decoration: underline;
}

/* FAQ Section */
.page-khuyen-mai__faq-section {
    padding: 80px 0;
    background-color: #08160F;
    border-top: 1px solid #1E3A2A;
}

.page-khuyen-mai__faq-list {
    margin-top: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

details.page-khuyen-mai__faq-item {
  margin-bottom: 15px;
  border-radius: 8px;
  border: 1px solid #2E7A4E;
  overflow: hidden;
  background: #11271B;
  color: #F2FFF6;
}
details.page-khuyen-mai__faq-item summary.page-khuyen-mai__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;
}
details.page-khuyen-mai__faq-item summary.page-khuyen-mai__faq-question::-webkit-details-marker {
  display: none;
}
details.page-khuyen-mai__faq-item summary.page-khuyen-mai__faq-question:hover {
  background: #1E3A2A;
}
.page-khuyen-mai__faq-qtext {
  flex: 1;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: #F2FFF6;
}
.page-khuyen-mai__faq-toggle {
  font-size: 28px;
  font-weight: bold;
  color: #57E38D;
  flex-shrink: 0;
  margin-left: 15px;
  width: 28px;
  text-align: center;
}
details.page-khuyen-mai__faq-item .page-khuyen-mai__faq-answer {
  padding: 0 20px 20px;
  background: #08160F;
  border-radius: 0 0 8px 8px;
  color: #A7D9B8;
  font-size: 16px;
  line-height: 1.6;
}

/* Final CTA Section */
.page-khuyen-mai__cta-final {
    padding: 60px 0;
    text-align: center;
    background-color: #08160F;
    border-top: 1px solid #1E3A2A;
}

.page-khuyen-mai__cta-final .page-khuyen-mai__section-title {
    color: #F2FFF6;
}

.page-khuyen-mai__cta-final .page-khuyen-mai__section-description {
    color: #A7D9B8;
    margin-bottom: 40px;
}

.page-khuyen-mai__cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .page-khuyen-mai__container {
        padding: 20px 30px;
    }

    .page-khuyen-mai__hero-image img {
        object-fit: contain !important; /* Ensure image is fully visible */
        aspect-ratio: unset !important;
    }

    .page-khuyen-mai__main-title {
        font-size: clamp(32px, 4.5vw, 48px);
    }

    .page-khuyen-mai__hero-description {
        font-size: 18px;
    }

    .page-khuyen-mai__btn-primary, .page-khuyen-mai__btn-secondary {
        padding: 12px 25px;
        font-size: 16px;
    }

    .page-khuyen-mai__features-grid,
    .page-khuyen-mai__categories-grid,
    .page-khuyen-mai__steps-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }

    .page-khuyen-mai__section-description {
        margin-bottom: 30px;
    }

    .page-khuyen-mai__category-card .page-khuyen-mai__card-title {
        font-size: 20px;
    }
}

@media (max-width: 768px) {
    /* HERO 主图区域 */
    .page-khuyen-mai__hero-section {
        padding-top: 10px;
        padding-bottom: 30px;
    }
    .page-khuyen-mai__hero-image {
        max-height: 400px;
        margin-bottom: 20px;
    }
    .page-khuyen-mai__hero-image img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        object-fit: contain !important;
        aspect-ratio: unset !important;
    }
    .page-khuyen-mai__hero-content {
        padding: 0 15px;
    }
    .page-khuyen-mai__main-title {
        font-size: clamp(28px, 8vw, 38px);
        margin-bottom: 15px;
    }
    .page-khuyen-mai__hero-description {
        font-size: 16px;
        line-height: 1.5;
        margin-bottom: 25px;
    }
    .page-khuyen-mai__hero-cta {
        flex-direction: column;
        gap: 15px;
    }

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

    /* 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,
    .page-khuyen-mai__cta-bottom,
    .page-khuyen-mai__cta-buttons {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 0;
        padding-right: 0;
        flex-wrap: wrap !important;
        gap: 10px;
        flex-direction: column;
    }
    .page-khuyen-mai__cta-bottom .page-khuyen-mai__btn-primary {
        margin: 0 auto; /* Center button if it's the only one */
    }

    /* 装饰主标题 + 长文 SEO 区 (section-title, section-description) */
    .page-khuyen-mai__section-title {
        font-size: clamp(24px, 7vw, 32px);
        margin-bottom: 15px;
        padding: 0 10px; /* Adjust padding for smaller screens */
    }
    .page-khuyen-mai__section-description {
        font-size: 15px;
        line-height: 1.5;
        margin-bottom: 25px;
        padding: 0 10px;
    }

    /* 产品展示图区域 (categories-grid is similar to product grid) */
    .page-khuyen-mai__categories-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
        overflow-x: hidden;
    }
    .page-khuyen-mai__feature-item,
    .page-khuyen-mai__category-card,
    .page-khuyen-mai__step-item {
        padding: 20px;
    }
    .page-khuyen-mai__category-card .page-khuyen-mai__card-title {
        font-size: 18px;
        margin: 15px 15px 8px;
    }
    .page-khuyen-mai__category-card .page-khuyen-mai__card-text {
        font-size: 15px;
        margin: 0 15px 15px;
    }
    .page-khuyen-mai__category-card .page-khuyen-mai__btn-primary {
        margin: 0 15px 15px;
    }

    /* FAQ Section */
    details.page-khuyen-mai__faq-item summary.page-khuyen-mai__faq-question { padding: 15px; }
    .page-khuyen-mai__faq-qtext { font-size: 15px; }
    .page-khuyen-mai__faq-toggle { font-size: 24px; }
    details.page-khuyen-mai__faq-item .page-khuyen-mai__faq-answer {
        padding: 0 15px 15px;
        font-size: 15px;
    }

    /* Other sections */
    .page-khuyen-mai__overview-section,
    .page-khuyen-mai__promotion-categories,
    .page-khuyen-mai__how-to-claim,
    .page-khuyen-mai__terms-section,
    .page-khuyen-mai__faq-section,
    .page-khuyen-mai__cta-final {
        padding: 40px 0;
    }
    .page-khuyen-mai__terms-list li {
        padding: 15px;
        font-size: 15px;
        line-height: 1.5;
    }
    .page-khuyen-mai__additional-info {
        font-size: 15px;
    }
}