/* Base styles for the download page */
.page-download {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333333; /* Default text color for light background */
    background-color: var(--secondary-color, #FFFFFF); /* Ensure matching body background */
}

/* Hero Section */
.page-download__hero-section {
    position: relative;
    padding-top: 10px; /* Small top padding as body handles header offset */
    margin-bottom: 40px;
    text-align: center;
    background-color: #f5f5f5; /* Light background for hero section */
    overflow: hidden;
}

.page-download__hero-image {
    width: 100%;
    max-height: 500px; /* Limit height for desktop */
    overflow: hidden;
    margin-bottom: 20px;
}

.page-download__hero-image img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover; /* Cover for desktop, will change to contain for mobile */
}

.page-download__hero-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px 40px;
}

.page-download__hero-title {
    font-size: clamp(28px, 4vw, 48px); /* Responsive font size for H1 */
    font-weight: 700;
    color: #017439; /* Brand green for title */
    margin-bottom: 15px;
    line-height: 1.2;
}

.page-download__hero-description {
    font-size: 18px;
    margin-bottom: 30px;
    color: #555555;
}

.page-download__cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap; /* Allow wrapping on smaller screens */
    width: 100%; /* Ensure container takes full width */
    max-width: 800px; /* Limit max width for desktop */
    margin: 0 auto;
    box-sizing: border-box;
    padding: 0 15px;
}

/* General Button Styles */
.page-download__btn-primary,
.page-download__btn-secondary,
.page-download a[class*="button"],
.page-download a[class*="btn"] {
    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;
    cursor: pointer;
    white-space: normal; /* Allow text wrapping */
    word-wrap: break-word; /* Break long words */
    text-align: center;
    box-sizing: border-box;
    max-width: 100%; /* Ensure buttons don't overflow */
}

.page-download__btn-primary {
    background: #C30808; /* Custom color for register/login/download */
    color: #FFFF00; /* Custom font color */
    border: 2px solid #C30808;
}

.page-download__btn-primary:hover {
    background: #a30606;
    border-color: #a30606;
    transform: translateY(-2px);
}

.page-download__btn-secondary {
    background: #017439; /* Brand green */
    color: #ffffff; /* White text */
    border: 2px solid #017439;
}

.page-download__btn-secondary:hover {
    background: #005a2d;
    border-color: #005a2d;
    transform: translateY(-2px);
}

/* General Section Styles */
.page-download__section {
    padding: 60px 20px;
    max-width: 1200px;
    margin: 0 auto;
    box-sizing: border-box;
}

.page-download__section-title {
    font-size: clamp(24px, 3.5vw, 40px); /* Responsive font size for H2 */
    font-weight: 700;
    color: #017439;
    text-align: center;
    margin-bottom: 40px;
    line-height: 1.3;
}

.page-download__section-title--light {
    color: #ffffff; /* For dark background sections */
}

/* Why Download Section */
.page-download__why-download {
    background-color: #ffffff;
}

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

.page-download__card {
    background: #ffffff;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    padding: 30px;
    text-align: center;
    transition: transform 0.3s ease;
    color: #333333; /* Ensure dark text on light card */
}

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

.page-download__card img {
    width: 100%;
    max-width: 400px; /* Max width for images within cards */
    height: auto;
    border-radius: 8px;
    margin-bottom: 20px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.page-download__card-title {
    font-size: 22px;
    font-weight: 600;
    color: #017439;
    margin-bottom: 15px;
}

.page-download__card p {
    font-size: 16px;
    color: #555555;
}

/* How to Download Section (Dark Background) */
.page-download__dark-section {
    background: #017439; /* Brand green background */
    color: #ffffff; /* White text for dark section */
}

.page-download__download-steps {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.page-download__step {
    background: rgba(255, 255, 255, 0.1); /* Slightly transparent white background */
    border-radius: 10px;
    padding: 30px;
    max-width: 500px;
    text-align: left;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    box-sizing: border-box;
    color: #ffffff; /* Ensure white text on dark card */
}

.page-download__step img {
    width: 100%;
    max-width: 300px; /* Max width for step images */
    height: auto;
    border-radius: 8px;
    margin-bottom: 20px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.page-download__step-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #FFFF00; /* Yellow for titles in dark sections */
}

.page-download__step-list {
    list-style: decimal;
    padding-left: 20px;
    font-size: 16px;
    color: #f0f0f0;
}

.page-download__step-list li {
    margin-bottom: 10px;
}

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

/* App Features Section */
.page-download__app-features {
    background-color: #f9f9f9;
}

.page-download__feature-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.page-download__feature-item {
    background: #ffffff;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    padding: 25px;
    text-align: center;
    color: #333333;
}

.page-download__feature-item img {
    width: 100%;
    max-width: 200px; /* Max width for feature images */
    height: auto;
    margin-bottom: 15px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.page-download__feature-title {
    font-size: 20px;
    font-weight: 600;
    color: #017439;
    margin-bottom: 10px;
}

.page-download__feature-item p {
    font-size: 15px;
    color: #555555;
}

/* FAQ Section */
.page-download__faq-section {
    background-color: #ffffff;
}

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

details.page-download__faq-item {
    margin-bottom: 15px;
    border-radius: 5px;
    border: 1px solid #e0e0e0;
    overflow: hidden;
    background: #fff;
}
details.page-download__faq-item summary.page-download__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-download__faq-item summary.page-download__faq-question::-webkit-details-marker {
    display: none;
}
details.page-download__faq-item summary.page-download__faq-question:hover {
    background: #f5f5f5;
}
.page-download__faq-qtext {
    flex: 1;
    font-size: 16px;
    font-weight: 600;
    line-height: 1.5;
    text-align: left;
    color: #017439; /* Brand green for FAQ question */
}
.page-download__faq-toggle {
    font-size: 24px;
    font-weight: bold;
    color: #666;
    flex-shrink: 0;
    margin-left: 15px;
    width: 28px;
    text-align: center;
}
details.page-download__faq-item .page-download__faq-answer {
    padding: 0 20px 20px;
    background: #f9f9f9;
    border-radius: 0 0 5px 5px;
    color: #555555;
}

/* Final CTA Section (Dark Background) */
.page-download__final-cta {
    text-align: center;
    padding-bottom: 80px;
}

.page-download__final-cta-description {
    font-size: 18px;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    color: #f0f0f0;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .page-download__hero-section {
        max-height: unset;
    }
    .page-download__hero-image {
        max-height: 400px;
    }
    .page-download__section {
        padding: 50px 20px;
    }
    .page-download__hero-title {
        font-size: clamp(26px, 4.5vw, 42px);
    }
    .page-download__section-title {
        font-size: clamp(22px, 4vw, 36px);
    }
}

@media (max-width: 768px) {
    .page-download {
        font-size: 16px;
        line-height: 1.6;
    }

    /* HERO 主图区域 */
    .page-download__hero-section {
        padding-top: 10px;
        margin-bottom: 30px;
    }
    .page-download__hero-image img {
        object-fit: contain !important;
        aspect-ratio: unset !important;
        max-height: 300px;
    }
    .page-download__hero-content {
        padding: 0 15px 30px;
    }
    .page-download__hero-title {
        font-size: clamp(24px, 6vw, 36px);
        margin-bottom: 10px;
    }
    .page-download__hero-description {
        font-size: 16px;
        margin-bottom: 25px;
    }

    /* 按钮与按钮容器 */
    .page-download__cta-buttons {
        flex-direction: column;
        gap: 15px;
        padding: 0 15px;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
    .page-download__btn-primary,
    .page-download__btn-secondary,
    .page-download a[class*="button"],
    .page-download 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;
    }
    
    /* 通用图片与容器 */
    .page-download img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }
    .page-download__section,
    .page-download__card,
    .page-download__container,
    .page-download__download-steps,
    .page-download__step,
    .page-download__feature-list,
    .page-download__feature-item,
    .page-download__faq-list {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }

    /* 产品展示图区域 (Why Download Section) */
    .page-download__grid-container {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .page-download__card {
        padding: 20px;
    }
    .page-download__card-title {
        font-size: 20px;
    }

    /* How to Download Section */
    .page-download__download-steps {
        flex-direction: column;
        gap: 20px;
    }
    .page-download__step {
        padding: 25px;
    }
    .page-download__step-title {
        font-size: 22px;
    }
    .page-download__step-list {
        font-size: 15px;
    }

    /* App Features Section */
    .page-download__feature-list {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .page-download__feature-item {
        padding: 20px;
    }
    .page-download__feature-title {
        font-size: 18px;
    }

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

    /* 装饰主标题 + 长文 SEO 区 (General section titles) */
    .page-download__section-title {
        font-size: clamp(20px, 5vw, 32px);
        margin-bottom: 30px;
    }
    .page-download__text-block,
    .page-download__article-body {
        max-width: 100% !important;
        margin-left: auto !important;
        margin-right: auto !important;
        padding: 0 15px;
        box-sizing: border-box;
    }
    .page-download__text-block p,
    .page-download__article-body p {
        font-size: 15px;
    }
}