:root {
    --color-primary: #11A84E;
    --color-secondary: #22C768;
    --color-button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
    --color-card-bg: #11271B;
    --color-background: #08160F;
    --color-text-main: #F2FFF6;
    --color-text-secondary: #A7D9B8;
    --color-border: #2E7A4E;
    --color-glow: #57E38D;
    --color-gold: #F2C14E;
    --color-divider: #1E3A2A;
    --color-deep-green: #0A4B2C;
}

/* body 已 padding-top: var(--header-offset)；页面禁止再写该变量 */
.page-download {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--color-text-main); /* Default text color for the page */
    background-color: var(--color-background); /* Default background for the page */
}

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

.page-download__section {
    padding: 60px 0;
    text-align: center;
}

.page-download__dark-bg {
    background-color: var(--color-background);
    color: var(--color-text-main);
}

.page-download__light-bg {
    background-color: #f8f9fa; /* A very light background to contrast with dark elements */
    color: #333333;
}

.page-download__section-title {
    font-size: clamp(2em, 5vw, 2.8em);
    margin-bottom: 20px;
    font-weight: 700;
    color: var(--color-gold);
    text-shadow: 0 0 8px rgba(242, 193, 78, 0.4);
}

.page-download__section-description {
    font-size: 1.1em;
    max-width: 800px;
    margin: 0 auto 40px;
    color: var(--color-text-secondary);
}

/* Hero Section */
.page-download__hero-section {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 10px 0 60px 0; /* body already handles top padding, only small top padding for aesthetic */
    overflow: hidden;
}

.page-download__hero-image-wrapper {
    width: 100%;
    max-height: 700px;
    overflow: hidden;
}

.page-download__hero-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    object-position: center;
    filter: brightness(0.7);
}

.page-download__hero-content {
    position: relative; /* Ensure content is above image but not overlapping */
    z-index: 2;
    text-align: center;
    padding: 40px 20px;
    max-width: 900px;
    margin-top: -150px; /* Pull up content slightly over the bottom of the image for visual flow */
    background: rgba(8, 22, 15, 0.85); /* Semi-transparent dark background for readability */
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--color-border);
}

.page-download__main-title {
    font-size: clamp(2.5em, 6vw, 3.8em);
    color: var(--color-gold);
    margin-bottom: 20px;
    font-weight: 800;
    line-height: 1.2;
    text-shadow: 0 0 15px var(--color-glow);
}

.page-download__intro-text {
    font-size: clamp(1em, 2.5vw, 1.3em);
    color: var(--color-text-main);
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

.page-download__btn-primary,
.page-download__btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1em;
    transition: all 0.3s ease;
    box-sizing: border-box;
    max-width: 100%;
    white-space: normal;
    word-wrap: break-word;
}

.page-download__btn-primary {
    background: var(--color-button-gradient);
    color: #ffffff;
    border: 2px solid var(--color-glow);
    box-shadow: 0 5px 15px rgba(42, 209, 111, 0.4);
}

.page-download__btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(42, 209, 111, 0.6);
}

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

.page-download__btn-secondary:hover {
    background: var(--color-glow);
    color: var(--color-background);
    transform: translateY(-3px);
}

/* Why Download Section */
.page-download__why-download .page-download__section-description {
    color: #555;
}

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

.page-download__feature-item {
    background-color: var(--color-card-bg);
    color: var(--color-text-main);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--color-border);
    text-align: left;
    transition: transform 0.3s ease;
}

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

.page-download__feature-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 20px;
    display: block;
}

.page-download__feature-title {
    font-size: 1.5em;
    color: var(--color-gold);
    margin-bottom: 15px;
    font-weight: 600;
}

.page-download__feature-text {
    font-size: 1em;
    color: var(--color-text-secondary);
}

/* How to Download Section */
.page-download__download-steps-wrapper {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 40px;
}

.page-download__download-platform {
    background-color: var(--color-card-bg);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--color-border);
    text-align: left;
}

.page-download__platform-title {
    font-size: 1.8em;
    color: var(--color-glow);
    margin-bottom: 25px;
    font-weight: 700;
    text-align: center;
}

.page-download__platform-image {
    width: 100%;
    height: auto;
    max-height: 350px;
    object-fit: contain;
    margin-bottom: 25px;
    border-radius: 10px;
    display: block;
}

.page-download__step-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.page-download__step-list li {
    margin-bottom: 20px;
    font-size: 1.05em;
    color: var(--color-text-secondary);
    position: relative;
    padding-left: 30px;
}

.page-download__step-list li strong {
    color: var(--color-text-main);
    font-weight: 600;
}

.page-download__step-list li::before {
    content: counter(step-counter);
    counter-increment: step-counter;
    background-color: var(--color-glow);
    color: var(--color-background);
    width: 25px;
    height: 25px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    left: 0;
    top: 0;
    font-size: 0.9em;
    font-weight: 700;
}

/* App Features Section */
.page-download__app-features .page-download__section-description {
    color: #555;
}

.page-download__features-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
    margin-bottom: 50px;
}

.page-download__feature-card {
    background-color: var(--color-card-bg);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--color-border);
    text-align: left;
    transition: transform 0.3s ease;
}

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

.page-download__feature-card-title {
    font-size: 1.6em;
    color: var(--color-gold);
    margin-bottom: 15px;
    font-weight: 600;
}

.page-download__feature-card-text {
    font-size: 1em;
    color: var(--color-text-secondary);
}

.page-download__app-screenshot {
    width: 100%;
    max-width: 1000px;
    height: auto;
    display: block;
    margin: 50px auto 0;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    border: 2px solid var(--color-glow);
}

/* FAQ Section */
.page-download__faq-section .page-download__section-description {
    color: var(--color-text-secondary);
}

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

.page-download__faq-item {
    background-color: var(--color-card-bg);
    margin-bottom: 20px;
    border-radius: 10px;
    border: 1px solid var(--color-border);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    text-align: left;
}

.page-download__faq-item summary {
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    font-size: 1.2em;
    font-weight: 600;
    color: var(--color-text-main);
    cursor: pointer;
    outline: none;
    transition: background-color 0.3s ease;
}

.page-download__faq-item summary:hover {
    background-color: var(--color-deep-green);
}

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

.page-download__faq-question .page-download__faq-toggle {
    font-size: 1.5em;
    font-weight: 300;
    color: var(--color-glow);
    margin-left: 15px;
}

.page-download__faq-answer {
    padding: 15px 25px 20px;
    font-size: 1em;
    color: var(--color-text-secondary);
    border-top: 1px solid var(--color-divider);
}

.page-download__faq-answer p {
    margin: 0;
}

.page-download__faq-image {
    width: 100%;
    max-width: 800px;
    height: auto;
    display: block;
    margin: 50px auto 0;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    border: 2px solid var(--color-glow);
}

/* Final CTA Section */
.page-download__final-cta .page-download__section-title {
    color: var(--color-primary);
}

.page-download__final-cta .page-download__section-description {
    color: #555;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .page-download__hero-content {
        margin-top: -100px;
        padding: 30px;
    }
}

@media (max-width: 768px) {
    .page-download__section {
        padding: 40px 0;
    }

    .page-download__hero-section {
        padding-bottom: 40px;
    }

    .page-download__hero-content {
        margin-top: -80px;
        padding: 25px;
        border-radius: 10px;
    }

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

    .page-download__intro-text {
        font-size: 1em;
        margin-bottom: 20px;
    }

    .page-download__cta-buttons {
        flex-direction: column;
        gap: 15px;
        padding: 0 15px; /* Add padding to prevent buttons from touching screen edges */
    }

    .page-download__btn-primary,
    .page-download__btn-secondary {
        width: 100% !important;
        padding: 12px 20px;
        font-size: 1em;
        white-space: normal !important;
        word-wrap: break-word !important;
    }

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

    .page-download__section-description {
        font-size: 0.95em;
        margin-bottom: 30px;
    }

    .page-download__features-grid,
    .page-download__download-steps-wrapper,
    .page-download__features-list {
        grid-template-columns: 1fr;
        gap: 25px;
        padding: 0 15px;
    }

    .page-download__feature-item,
    .page-download__download-platform,
    .page-download__feature-card,
    .page-download__faq-item {
        padding: 25px;
    }

    .page-download__feature-image {
        height: 200px;
    }

    .page-download__platform-title {
        font-size: 1.5em;
    }

    .page-download__step-list li {
        font-size: 0.95em;
    }

    .page-download__faq-item summary {
        font-size: 1.1em;
        padding: 18px 20px;
    }

    .page-download__faq-answer {
        padding: 12px 20px 15px;
        font-size: 0.95em;
    }

    /* Mobile image responsiveness */
    .page-download img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }
    
    .page-download__section,
    .page-download__card,
    .page-download__container,
    .page-download__hero-content,
    .page-download__download-steps-wrapper,
    .page-download__download-platform,
    .page-download__features-grid,
    .page-download__features-list,
    .page-download__faq-list {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        overflow-x: hidden !important; /* Ensure no horizontal scroll */
    }
    
    .page-download__hero-section {
        padding-top: 10px !important; /* body 已承担 --header-offset，此处禁止 var(--header-offset) */
    }

    /* Specific override for content area images if they have explicit width/height in HTML */
    .page-download__feature-image, .page-download__platform-image, .page-download__app-screenshot, .page-download__faq-image {
        width: 100% !important;
        height: auto !important;
        max-width: 100% !important;
    }

}

@media (max-width: 480px) {
    .page-download__hero-content {
        margin-top: -60px;
        padding: 20px;
    }

    .page-download__main-title {
        font-size: 1.8em;
    }

    .page-download__section-title {
        font-size: 1.8em;
    }

    .page-download__faq-item summary {
        font-size: 1em;
    }
}