:root {
    --page-promotions-primary-color: #C91F17;
    --page-promotions-secondary-color: #E53935;
    --page-promotions-button-gradient: linear-gradient(180deg, #FFD86A 0%, #E6B800 100%);
    --page-promotions-card-bg: #D32F2F;
    --page-promotions-background-color: #B71C1C;
    --page-promotions-text-main: #FFF5E1;
    --page-promotions-border-color: #F2B544;
    --page-promotions-glow-color: #FFCC66;
    --page-promotions-gold-color: #F4D34D;
    --page-promotions-deep-red: #7A0E0E;
    --page-promotions-dark-text: #333333; /* For contrast on light backgrounds */
    --page-promotions-light-text: #ffffff; /* For contrast on dark backgrounds */
}

.page-promotions {
    font-family: 'Arial', sans-serif;
    color: var(--page-promotions-text-main);
    background-color: var(--page-promotions-background-color);
}

/* Hero Section */
.page-promotions__hero-section {
    position: relative;
    padding-top: 10px; /* Small top padding, assuming body has header offset */
    padding-bottom: 60px;
    padding-left: 0;
    padding-right: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.page-promotions__hero-image-container {
    width: 100%;
    max-height: 700px; /* Limit height of hero image */
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 40px;
}

.page-promotions__hero-image {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
}

.page-promotions__hero-content {
    max-width: 900px;
    padding: 0 20px;
    z-index: 2;
}

.page-promotions__main-title {
    font-size: clamp(2em, 4vw, 3.5em); /* Responsive font size */
    color: var(--page-promotions-text-main);
    margin-bottom: 20px;
    line-height: 1.2;
    font-weight: bold;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.page-promotions__hero-description {
    font-size: clamp(1em, 1.5vw, 1.2em);
    color: var(--page-promotions-text-main);
    margin-bottom: 30px;
    line-height: 1.6;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

/* General Section Styling */
.page-promotions__section {
    padding: 60px 0;
    background-color: var(--page-promotions-background-color);
}

.page-promotions__dark-section {
    background-color: var(--page-promotions-deep-red);
    color: var(--page-promotions-text-main);
}

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

.page-promotions__section-title {
    font-size: clamp(1.8em, 3vw, 2.8em);
    color: var(--page-promotions-gold-color);
    text-align: center;
    margin-bottom: 40px;
    font-weight: bold;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.4);
}

.page-promotions__text-block {
    font-size: 1.1em;
    line-height: 1.7;
    margin-bottom: 20px;
    text-align: justify;
    color: var(--page-promotions-text-main);
}

/* Buttons */
.page-promotions__btn-primary,
.page-promotions__btn-secondary {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    text-align: center;
    cursor: pointer;
    white-space: normal;
    word-wrap: break-word;
    box-sizing: border-box;
    max-width: 100%;
}

.page-promotions__btn-primary {
    background: var(--page-promotions-button-gradient);
    color: var(--page-promotions-dark-text);
    border: 2px solid var(--page-promotions-border-color);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.page-promotions__btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
    filter: brightness(1.1);
}

.page-promotions__btn-secondary {
    background: transparent;
    color: var(--page-promotions-gold-color);
    border: 2px solid var(--page-promotions-gold-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.page-promotions__btn-secondary:hover {
    background: var(--page-promotions-gold-color);
    color: var(--page-promotions-dark-text);
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.page-promotions__btn-small {
    padding: 10px 20px;
    font-size: 0.9em;
}

.page-promotions__btn-large {
    padding: 18px 35px;
    font-size: 1.2em;
}

/* Promotion Types Section */
.page-promotions__promotion-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-promotions__card {
    background-color: var(--page-promotions-card-bg);
    border-radius: 12px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--page-promotions-text-main);
}

.page-promotions__card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.5);
}

.page-promotions__card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 20px;
    border: 1px solid var(--page-promotions-border-color);
    display: block;
}

.page-promotions__card-title {
    font-size: 1.6em;
    color: var(--page-promotions-gold-color);
    margin-bottom: 15px;
    font-weight: bold;
}

.page-promotions__card-description {
    font-size: 1em;
    line-height: 1.6;
    margin-bottom: 20px;
    flex-grow: 1;
}

/* How to Join Section */
.page-promotions__steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
    text-align: center;
}

.page-promotions__step-item {
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--page-promotions-text-main);
}

.page-promotions__step-icon {
    width: 60px;
    height: 60px;
    background: var(--page-promotions-button-gradient);
    color: var(--page-promotions-dark-text);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2em;
    font-weight: bold;
    margin: 0 auto 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.page-promotions__step-title {
    font-size: 1.4em;
    color: var(--page-promotions-gold-color);
    margin-bottom: 10px;
    font-weight: bold;
}

.page-promotions__step-description {
    font-size: 0.95em;
    line-height: 1.6;
}

.page-promotions__guide-image-container {
    margin-top: 50px;
    text-align: center;
    overflow: hidden;
}

.page-promotions__guide-image {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    display: block;
    margin: 0 auto;
}

/* Why Choose Section */
.page-promotions__advantage-list {
    list-style: none;
    padding: 0;
    margin-top: 40px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.page-promotions__advantage-item {
    background-color: var(--page-promotions-card-bg);
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    color: var(--page-promotions-text-main);
}

.page-promotions__advantage-title {
    font-size: 1.5em;
    color: var(--page-promotions-gold-color);
    margin-bottom: 10px;
    font-weight: bold;
}

.page-promotions__advantage-description {
    font-size: 1em;
    line-height: 1.6;
}

/* FAQ Section */
.page-promotions__faq-list {
    margin-top: 40px;
}

.page-promotions__faq-item {
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    margin-bottom: 15px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--page-promotions-text-main);
    overflow: hidden;
}

.page-promotions__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 25px;
    font-size: 1.2em;
    font-weight: bold;
    cursor: pointer;
    color: var(--page-promotions-gold-color);
    list-style: none;
}

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

.page-promotions__faq-item summary::marker {
    display: none;
}

.page-promotions__faq-toggle {
    font-size: 1.5em;
    line-height: 1;
    margin-left: 15px;
    transition: transform 0.3s ease;
    color: var(--page-promotions-text-main);
}

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

.page-promotions__faq-answer {
    padding: 0 25px 20px;
    font-size: 1em;
    line-height: 1.7;
    color: var(--page-promotions-text-main);
}

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

/* CTA Section */
.page-promotions__cta-section {
    text-align: center;
    padding: 80px 0;
    background-color: var(--page-promotions-deep-red);
}

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

/* General image responsive styles */
.page-promotions img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Mobile Responsive Styles */
@media (max-width: 1024px) {
    .page-promotions__main-title {
        font-size: clamp(2em, 5vw, 3em);
    }
    .page-promotions__hero-description {
        font-size: clamp(1em, 1.8vw, 1.1em);
    }
    .page-promotions__promotion-grid,
    .page-promotions__steps-grid,
    .page-promotions__advantage-list {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    /* 1. HERO 主图区域 */
    .page-promotions__hero-section {
        padding-top: 10px !important;
        padding-bottom: 40px !important;
    }
    .page-promotions__hero-image-container {
        max-height: 400px !important;
    }
    .page-promotions__hero-content {
        padding: 0 15px !important;
    }
    .page-promotions__main-title {
        font-size: 2em !important;
        margin-bottom: 15px !important;
    }
    .page-promotions__hero-description {
        font-size: 1em !important;
        margin-bottom: 25px !important;
    }
    .page-promotions__hero-cta-buttons {
        flex-direction: column !important;
        gap: 15px !important;
        width: 100% !important;
        padding: 0 15px !important;
        box-sizing: border-box !important;
    }

    /* 2. 产品展示图区域 (Promotion Cards) */
    .page-promotions__promotion-grid {
        grid-template-columns: 1fr !important;
        gap: 20px !important;
        padding: 0 15px !important;
        box-sizing: border-box !important;
    }
    .page-promotions__card {
        padding: 20px !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
    .page-promotions__card-image {
        height: 180px !important;
    }

    /* 3. 通用图片与容器 */
    .page-promotions img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }
    .page-promotions__section,
    .page-promotions__container,
    .page-promotions__card,
    .page-promotions__step-item,
    .page-promotions__advantage-item,
    .page-promotions__faq-item {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px !important;
        padding-right: 15px !important;
    }
    .page-promotions__guide-image-container {
        padding: 0 15px !important;
        box-sizing: border-box !important;
    }

    /* 4. 按钮与按钮容器 */
    .page-promotions__btn-primary,
    .page-promotions__btn-secondary,
    .page-promotions a[class*="button"],
    .page-promotions 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 !important;
        padding-right: 15px !important;
    }
    .page-promotions__cta-buttons,
    .page-promotions__button-group,
    .page-promotions__btn-container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px !important;
        padding-right: 15px !important;
        flex-wrap: wrap !important;
        gap: 10px !important;
        flex-direction: column !important;
    }
    .page-promotions__cta-buttons {
        display: flex !important;
    }

    /* 5. 其他内容模块 */
    .page-promotions__section-title {
        font-size: 1.6em !important;
        margin-bottom: 30px !important;
    }
    .page-promotions__text-block {
        font-size: 1em !important;
    }
    .page-promotions__steps-grid,
    .page-promotions__advantage-list {
        grid-template-columns: 1fr !important;
        gap: 20px !important;
        padding: 0 15px !important;
        box-sizing: border-box !important;
    }
    .page-promotions__step-item,
    .page-promotions__advantage-item {
        padding: 20px !important;
    }
    .page-promotions__faq-question {
        font-size: 1.1em !important;
        padding: 15px 20px !important;
    }
    .page-promotions__faq-answer {
        font-size: 0.95em !important;
        padding: 0 20px 15px !important;
    }
    .page-promotions__cta-section {
        padding: 50px 15px !important;
    }
}