/* style/promotions.css */

:root {
    --primary-color: #113B7A;
    --secondary-color: #1D5FD1;
    --text-main: #F3F8FF;
    --text-secondary: #AFC4E8;
    --button-gradient: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
    --card-bg: #10233F;
    --border-color: #244D84;
    --glow-color: #4FA8FF;
    --gold-color: #F2C14E;
    --divider-color: #1B3357;
    --deep-navy: #08162B;
}

.page-promotions {
    font-family: 'Arial', sans-serif;
    color: var(--text-main); /* Default text color for the page */
    background-color: var(--deep-navy); /* Body background from shared */
}

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

.page-promotions__hero-image-wrapper {
    width: 100%;
    max-width: 100%;
    overflow: hidden;
    box-sizing: border-box;
}

.page-promotions__hero-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    /* No filter here, maintain original image color */
}

.page-promotions__hero-content {
    position: relative;
    z-index: 2;
    padding: 40px 20px;
    max-width: 900px;
    width: 100%;
    box-sizing: border-box;
}

.page-promotions__main-title {
    font-size: clamp(2em, 4vw, 3.5em);
    font-weight: 700;
    line-height: 1.2;
    color: var(--gold-color);
    margin-bottom: 20px;
    text-shadow: 0 0 10px rgba(79, 168, 255, 0.5);
}

.page-promotions__description {
    font-size: 1.1em;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.page-promotions__cta-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    overflow: hidden;
}

.page-promotions__btn-primary,
.page-promotions__btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 15px 30px;
    border-radius: 8px;
    font-size: 1.1em;
    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-promotions__btn-primary {
    background: var(--button-gradient);
    color: var(--text-main);
    border: 2px solid var(--glow-color);
    box-shadow: 0 0 15px rgba(79, 168, 255, 0.5);
}

.page-promotions__btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 25px rgba(79, 168, 255, 0.8);
}

.page-promotions__btn-secondary {
    background: var(--card-bg);
    color: var(--glow-color);
    border: 2px solid var(--border-color);
}

.page-promotions__btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--text-main);
    border-color: var(--glow-color);
    transform: translateY(-3px);
}

.page-promotions__section {
    padding: 60px 0;
    border-bottom: 1px solid var(--divider-color);
}

.page-promotions__section:last-of-type {
    border-bottom: none;
}

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

.page-promotions__section-title {
    font-size: 2.5em;
    font-weight: 700;
    text-align: center;
    margin-bottom: 40px;
    color: var(--gold-color);
    text-shadow: 0 0 8px rgba(242, 193, 78, 0.4);
}

.page-promotions__text-main {
    color: var(--text-main);
}

.page-promotions__text-secondary {
    color: var(--text-secondary);
}

.page-promotions__text-link {
    color: var(--glow-color);
    text-decoration: none;
}

.page-promotions__text-link:hover {
    text-decoration: underline;
}

.page-promotions__introduction p {
    font-size: 1.1em;
    line-height: 1.7;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

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

.page-promotions__card {
    background-color: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border: 1px solid var(--border-color);
}

.page-promotions__card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
}

.page-promotions__card-image {
    width: 100%;
    height: 200px; /* Fixed height for consistency */
    object-fit: cover;
    display: block;
    /* No filter here, maintain original image color */
}

.page-promotions__card-title {
    font-size: 1.4em;
    font-weight: 600;
    margin: 20px 20px 10px 20px;
    line-height: 1.4;
    color: var(--gold-color);
}

.page-promotions__card-description {
    font-size: 0.95em;
    line-height: 1.6;
    padding: 0 20px 20px 20px;
    flex-grow: 1;
}

.page-promotions__card .page-promotions__btn-secondary {
    margin: 0 20px 20px 20px;
    width: calc(100% - 40px);
}

.page-promotions__how-to-claim .page-promotions__steps-list {
    list-style: none;
    padding: 0;
    margin-top: 40px;
}

.page-promotions__step-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 30px;
    background-color: var(--card-bg);
    padding: 25px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-promotions__step-number {
    background: var(--button-gradient);
    color: var(--text-main);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2em;
    font-weight: 700;
    flex-shrink: 0;
    margin-right: 20px;
    box-shadow: 0 0 10px rgba(79, 168, 255, 0.3);
}

.page-promotions__step-content {
    flex-grow: 1;
}

.page-promotions__step-title {
    font-size: 1.3em;
    font-weight: 600;
    margin-top: 0;
    margin-bottom: 10px;
    color: var(--gold-color);
}

.page-promotions__step-content p {
    line-height: 1.6;
}

.page-promotions__faq-list {
    margin-top: 40px;
}

.page-promotions__faq-item {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    margin-bottom: 15px;
    overflow: hidden;
}

.page-promotions__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    cursor: pointer;
    font-size: 1.15em;
    font-weight: 600;
    color: var(--text-main);
    list-style: none;
    transition: background-color 0.3s ease;
}

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

.page-promotions__faq-question:hover {
    background-color: var(--primary-color);
}

.page-promotions__faq-toggle {
    font-size: 1.5em;
    line-height: 1;
    margin-left: 15px;
    color: var(--glow-color);
}

.page-promotions__faq-item[open] .page-promotions__faq-toggle {
    content: '−';
}

.page-promotions__faq-answer {
    padding: 0 20px 20px 20px;
    font-size: 1em;
    line-height: 1.6;
    color: var(--text-secondary);
}

.page-promotions__why-choose .page-promotions__benefits-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    list-style: none;
    padding: 0;
    margin-top: 40px;
}

.page-promotions__benefit-item {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
}

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

.page-promotions__benefit-icon {
    width: 60px;
    height: 60px;
    object-fit: contain;
    margin-bottom: 15px;
    /* No filter here, maintain original image color */
}

.page-promotions__benefit-title {
    font-size: 1.25em;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--gold-color);
}

.page-promotions__benefit-item p {
    font-size: 0.95em;
    line-height: 1.6;
    color: var(--text-secondary);
}

.page-promotions__call-to-action .page-promotions__description {
    max-width: 800px;
    margin: 0 auto 30px auto;
    text-align: center;
}

.page-promotions__button-group {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* --- Responsive Styles --- */

/* Tablet (max-width: 1024px) */
@media (max-width: 1024px) {
    .page-promotions__main-title {
        font-size: clamp(1.8em, 5vw, 3em);
    }

    .page-promotions__description {
        font-size: 1em;
    }

    .page-promotions__section-title {
        font-size: 2em;
    }

    .page-promotions__card-title {
        font-size: 1.3em;
    }

    .page-promotions__card-description {
        font-size: 0.9em;
    }

    .page-promotions__step-item {
        padding: 20px;
    }

    .page-promotions__step-title {
        font-size: 1.2em;
    }

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

    .page-promotions__benefit-item {
        padding: 25px;
    }

    .page-promotions__benefit-title {
        font-size: 1.15em;
    }
}

/* Mobile (max-width: 768px) */
@media (max-width: 768px) {
    /* 1. HERO 主图区域 */
    .page-promotions__hero-section {
        padding-top: 10px !important; /* Small top padding, body handles header offset */
        padding-bottom: 20px;
    }

    .page-promotions__hero-content {
        padding: 20px 15px;
    }

    .page-promotions__main-title {
        font-size: 1.8em !important;
        margin-bottom: 15px;
    }

    .page-promotions__description {
        font-size: 0.95em !important;
        margin-bottom: 20px;
    }

    /* 2. 产品展示图区域 (General Grid/Card Layout) */
    .page-promotions__grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .page-promotions__card {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
    }

    .page-promotions__card-image {
        height: 180px; /* Adjust height for smaller screens */
    }

    .page-promotions__card-title {
        font-size: 1.2em !important;
        margin: 15px 15px 8px 15px;
    }

    .page-promotions__card-description {
        font-size: 0.9em !important;
        padding: 0 15px 15px 15px;
    }

    .page-promotions__card .page-promotions__btn-secondary {
        margin: 0 15px 15px 15px;
        width: calc(100% - 30px);
    }

    /* 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__faq-item,
    .page-promotions__benefit-item {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        overflow: hidden;
    }

    /* 4. 按钮与按钮容器 */
    .page-promotions__cta-button,
    .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;
        padding-right: 15px;
    }
    
    .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;
        padding-right: 15px;
        flex-direction: column !important; /* Stack buttons vertically */
        gap: 10px; /* Smaller gap */
        overflow: hidden;
    }

    /* 5. 其他内容模块 */
    .page-promotions__section {
        padding: 40px 0;
    }

    .page-promotions__section-title {
        font-size: 1.8em !important;
        margin-bottom: 30px;
    }

    .page-promotions__introduction p {
        font-size: 1em !important;
    }

    .page-promotions__step-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 20px;
    }

    .page-promotions__step-number {
        margin-right: 0;
        margin-bottom: 15px;
    }

    .page-promotions__step-title {
        font-size: 1.1em !important;
    }

    .page-promotions__faq-question {
        font-size: 1em !important;
        padding: 15px;
    }

    .page-promotions__faq-toggle {
        font-size: 1.2em;
    }

    .page-promotions__faq-answer {
        padding: 0 15px 15px 15px;
    }

    .page-promotions__benefits-list {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .page-promotions__benefit-item {
        padding: 20px;
    }

    .page-promotions__benefit-title {
        font-size: 1.1em !important;
    }

    .page-promotions__benefit-icon {
        width: 50px;
        height: 50px;
    }
}

/* Small Mobile (max-width: 480px) */
@media (max-width: 480px) {
    .page-promotions__main-title {
        font-size: 1.5em !important;
    }

    .page-promotions__section-title {
        font-size: 1.6em !important;
    }

    .page-promotions__btn-primary,
    .page-promotions__btn-secondary {
        padding: 12px 20px;
        font-size: 1em;
    }

    .page-promotions__card-image {
        height: 150px;
    }
}