.page-download {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333333; /* Text Main */
    background: #F5F7FA; /* Background color */
}

.page-download__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 15px;
}

.page-download__section-title {
    font-size: 36px;
    font-weight: 700;
    color: #333333; /* Text Main */
    text-align: center;
    margin-bottom: 40px;
}

/* Hero Section */
.page-download__hero-section {
    position: relative;
    padding-top: 10px; /* Small top margin, not var(--header-offset) */
    padding-bottom: 60px;
    background: linear-gradient(180deg, #FF5A4F 0%, #E53935 100%); /* Button gradient as hero background */
    color: #ffffff;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow: hidden; /* Ensure no overflow from image */
}

.page-download__hero-image {
    width: 100%;
    max-width: 100%; /* Ensure image container doesn't overflow */
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
}

.page-download__hero-image img {
    max-width: 100%;
    height: auto;
    display: block;
    object-fit: cover; /* Default for desktop, changed for mobile */
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.page-download__hero-content {
    text-align: center;
    max-width: 800px;
    padding: 0 15px;
}

.page-download__main-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem); /* Responsive font size */
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #ffffff;
}

.page-download__description {
    font-size: 18px;
    margin-bottom: 30px;
    color: #f0f0f0;
}

.page-download__cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    width: 100%; /* Ensure container fills width for responsiveness */
    max-width: 100%;
    box-sizing: border-box;
    overflow: hidden;
    padding: 0 15px;
}

.page-download__btn-primary,
.page-download__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;
    cursor: pointer;
    white-space: normal; /* Allow text wrapping */
    word-wrap: break-word; /* Allow text wrapping */
    max-width: 100%; /* Ensure buttons don't overflow */
    box-sizing: border-box;
    text-align: center;
}

.page-download__btn-primary {
    background: linear-gradient(180deg, #FF5A4F 0%, #E53935 100%); /* Button gradient */
    color: #ffffff;
    border: none;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-download__btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-download__btn-secondary {
    background: #ffffff;
    color: #E53935; /* Primary color for text */
    border: 2px solid #E53935; /* Primary color for border */
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-download__btn-secondary:hover {
    background: #f0f0f0;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

/* Why Download Section */
.page-download__why-download-section {
    padding: 60px 0;
}

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

.page-download__feature-card {
    background: #FFFFFF; /* Card BG */
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.page-download__feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.page-download__feature-card img {
    max-width: 100%;
    height: auto;
    display: block;
    margin-bottom: 20px;
    border-radius: 8px;
    object-fit: cover;
    min-width: 200px; /* Minimum size requirement */
    min-height: 200px; /* Minimum size requirement */
}

.page-download__card-title {
    font-size: 24px;
    font-weight: 700;
    color: #E53935; /* Primary color */
    margin-bottom: 15px;
}

.page-download__feature-card p {
    font-size: 16px;
    color: #333333; /* Text Main */
}

/* How to Download Section */
.page-download__how-to-download-section {
    padding: 60px 0;
    background: #E53935; /* Primary color for dark section */
    color: #ffffff;
}

.page-download__how-to-download-section .page-download__section-title {
    color: #ffffff;
}

.page-download__download-steps {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 40px;
}

.page-download__step-card {
    background: rgba(255, 255, 255, 0.15); /* Slightly transparent white */
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    flex: 1;
    max-width: 500px;
    text-align: left;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.page-download__step-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #ffffff;
}

.page-download__step-list {
    list-style: decimal;
    padding-left: 20px;
    margin-bottom: 30px;
    color: #f0f0f0;
    font-size: 16px;
}

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

.page-download__step-card .page-download__btn-primary {
    margin-top: auto; /* Push button to bottom */
    width: auto;
    align-self: center;
}

/* App Features Section */
.page-download__app-features-section {
    padding: 60px 0;
}

.page-download__features-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 40px;
}

.page-download__feature-item {
    background: #FFFFFF; /* Card BG */
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-download__feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.page-download__feature-heading {
    font-size: 22px;
    font-weight: 600;
    color: #E53935; /* Primary color */
    margin-bottom: 10px;
}

.page-download__feature-item p {
    font-size: 16px;
    color: #333333; /* Text Main */
}

/* FAQ Section */
.page-download__faq-section {
    padding: 60px 0;
    background: #F5F7FA; /* Background color */
}

.page-download__faq-list {
    margin-top: 40px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

details.page-download__faq-item {
    margin-bottom: 15px;
    border-radius: 10px;
    border: 1px solid #E0E0E0; /* Border color */
    overflow: hidden;
    background: #ffffff; /* Card BG */
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}
details.page-download__faq-item summary.page-download__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 25px;
    cursor: pointer;
    user-select: none;
    list-style: none;
    transition: background-color 0.3s ease;
    font-size: 18px;
    font-weight: 600;
    color: #333333; /* Text Main */
}
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: #f0f0f0;
}
.page-download__faq-qtext {
    flex: 1;
    line-height: 1.5;
    text-align: left;
}
.page-download__faq-toggle {
    font-size: 28px;
    font-weight: bold;
    color: #E53935; /* Primary color */
    flex-shrink: 0;
    margin-left: 15px;
    width: 30px;
    text-align: center;
}
details.page-download__faq-item .page-download__faq-answer {
    padding: 0 25px 20px;
    background: #f9f9f9; /* Slightly different background for answer */
    border-radius: 0 0 10px 10px;
    color: #333333; /* Text Main */
    font-size: 16px;
}
.page-download__faq-answer p {
    margin-bottom: 0; /* Remove default paragraph margin in FAQ */
}

/* Bottom CTA Section */
.page-download__cta-bottom-section {
    padding: 80px 0;
    background: #E53935; /* Primary color for dark section */
    color: #ffffff;
    text-align: center;
}

.page-download__cta-bottom-section .page-download__section-title {
    color: #ffffff;
    margin-bottom: 25px;
}

.page-download__cta-bottom-section .page-download__description {
    max-width: 700px;
    margin: 0 auto 40px auto;
    color: #f0f0f0;
    font-size: 18px;
}

.page-download__btn-large {
    padding: 18px 40px;
    font-size: 20px;
    min-width: 250px;
}

.page-download__text-center {
    text-align: center;
}

/* Global image styles (must be > 200px) */
.page-download img {
    max-width: 100%;
    height: auto;
    display: block;
    object-fit: cover; /* Default */
}

/* Responsive styles */
@media (max-width: 1024px) {
    .page-download__section-title {
        font-size: 32px;
    }
    .page-download__main-title {
        font-size: clamp(2.2rem, 4.5vw, 3rem);
    }
    .page-download__container {
        padding: 20px 20px;
    }
    .page-download__features-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    .page-download__download-steps {
        flex-direction: column;
        align-items: center;
    }
    .page-download__step-card {
        max-width: 600px;
        width: 100%;
    }
    .page-download__features-list {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    /* HERO 主图区域 */
    .page-download__hero-section {
        padding-top: 10px;
        padding-bottom: 40px;
    }
    .page-download__hero-image img {
        object-fit: contain !important;
        aspect-ratio: unset !important;
        width: 100% !important;
        height: auto !important;
        min-height: 200px; /* Ensure minimum size */
        border-radius: 0; /* Remove border-radius on mobile hero */
    }
    .page-download__main-title {
        font-size: clamp(1.8rem, 8vw, 2.5rem);
        margin-bottom: 15px;
    }
    .page-download__description {
        font-size: 15px;
        margin-bottom: 25px;
    }
    .page-download__cta-buttons {
        flex-direction: column !important;
        gap: 15px;
        padding: 0 15px;
        width: 100% !important;
        max-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: 12px 20px !important;
        font-size: 16px !important;
    }

    /* 通用图片与容器 */
    .page-download img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        min-width: 200px !important;
        min-height: 200px !important;
    }
    .page-download__container,
    .page-download__why-download-section,
    .page-download__how-to-download-section,
    .page-download__app-features-section,
    .page-download__faq-section,
    .page-download__cta-bottom-section {
        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 (features grid) */
    .page-download__features-grid {
        grid-template-columns: 1fr; /* Single column on mobile */
        gap: 20px;
    }
    .page-download__feature-card {
        padding: 25px;
    }
    .page-download__feature-card img {
        min-width: 200px; /* Ensure min size */
        min-height: 200px; /* Ensure min size */
    }
    .page-download__card-title {
        font-size: 20px;
    }

    /* How to Download Section */
    .page-download__download-steps {
        gap: 20px;
    }
    .page-download__step-card {
        padding: 25px;
    }
    .page-download__step-title {
        font-size: 24px;
    }
    .page-download__step-list {
        font-size: 15px;
    }

    /* App Features Section */
    .page-download__features-list {
        grid-template-columns: 1fr; /* Single column on mobile */
        gap: 20px;
    }
    .page-download__feature-heading {
        font-size: 20px;
    }

    /* FAQ Section */
    details.page-download__faq-item summary.page-download__faq-question {
        padding: 15px 20px;
        font-size: 16px;
    }
    .page-download__faq-toggle {
        font-size: 24px;
        width: 24px;
        margin-left: 10px;
    }
    details.page-download__faq-item .page-download__faq-answer {
        padding: 0 20px 15px;
        font-size: 15px;
    }

    /* Bottom CTA Section */
    .page-download__cta-bottom-section {
        padding: 50px 15px;
    }
    .page-download__cta-bottom-section .page-download__section-title {
        font-size: 28px;
        margin-bottom: 20px;
    }
    .page-download__cta-bottom-section .page-download__description {
        font-size: 15px;
        margin-bottom: 30px;
    }
    .page-download__btn-large {
        padding: 15px 30px;
        font-size: 18px;
    }
}