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

/* style/download.css */
/* body 已 padding-top: var(--header-offset)；页面禁止再写该变量 */

/* Base styles for the download page */
.page-download {
    font-family: Arial, sans-serif;
    color: var(--text-main-color, #F2FFF6); /* Use Text Main for general text */
    background-color: var(--background-color, #08160F); /* Ensure body background is respected */
    line-height: 1.6;
}

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

.page-download__section-title {
    font-size: 2.5rem;
    color: var(--text-main-color, #F2FFF6);
    text-align: center;
    margin-bottom: 40px;
    font-weight: bold;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.page-download__hero-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 10px 0 60px 0; /* Small top padding, larger bottom padding */
    background-color: var(--background-color, #08160F);
    position: relative;
    overflow: hidden;
}

.page-download__hero-image-wrapper {
    width: 100%;
    max-height: 700px; /* Limit hero image height */
    overflow: hidden;
    margin-bottom: 30px;
}

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

.page-download__hero-content {
    text-align: center;
    max-width: 800px;
    padding: 0 20px;
}

.page-download__hero-title {
    font-size: clamp(2rem, 4vw, 3.5rem); /* Responsive H1 font size */
    color: var(--text-main-color, #F2FFF6);
    margin-bottom: 20px;
    font-weight: bold;
    line-height: 1.2;
}

.page-download__hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary-color, #A7D9B8);
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.page-download__hero-cta-buttons,
.page-download__cta-buttons-bottom {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap; /* Allow buttons to wrap on smaller screens */
    width: 100%; /* Ensure container takes full width for wrapping */
    box-sizing: border-box;
}

.page-download__btn-primary,
.page-download__btn-secondary,
.page-download__btn-download {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 15px 30px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: bold;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    white-space: normal; /* Allow text to wrap */
    word-wrap: break-word; /* Break long words */
    text-align: center;
    box-sizing: border-box;
    max-width: 300px; /* Limit individual button width */
}

.page-download__btn-primary,
.page-download__btn-large {
    background: var(--button-gradient, linear-gradient(180deg, #2AD16F 0%, #13994A 100%)); /* Custom button color */
    color: #ffffff;
    border: none;
}

.page-download__btn-primary:hover,
.page-download__btn-large:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.page-download__btn-secondary {
    background-color: transparent;
    color: var(--main-color, #11A84E);
    border: 2px solid var(--border-color, #2E7A4E); /* Custom border color */
}

.page-download__btn-secondary:hover {
    background-color: var(--main-color, #11A84E);
    color: #ffffff;
    border-color: var(--main-color, #11A84E);
    transform: translateY(-2px);
}

.page-download__btn-block {
    width: 100%;
    max-width: 350px; /* Max width for block buttons */
    margin: 15px auto;
}

.page-download__dark-section {
    background-color: var(--card-bg-color, #11271B); /* Use Card BG color for dark sections */
    padding: 60px 0;
    color: var(--text-main-color, #F2FFF6);
}

.page-download__why-download-section {
    padding: 60px 0;
}

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

.page-download__feature-card {
    background-color: var(--background-color, #08160F); /* Darker background for cards within dark section */
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
    border: 1px solid var(--border-color, #2E7A4E);
}

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

.page-download__feature-icon {
    width: 100%; /* Ensure images are responsive within cards */
    max-width: 200px; /* Example max width for feature icons */
    min-width: 200px;
    min-height: 200px;
    height: auto;
    margin-bottom: 20px;
    display: block;
    margin-left: auto;
    margin-right: auto;
    border-radius: 8px;
    object-fit: cover;
}

.page-download__feature-title {
    font-size: 1.5rem;
    color: var(--text-main-color, #F2FFF6);
    margin-bottom: 15px;
    font-weight: bold;
}

.page-download__feature-text {
    font-size: 1rem;
    color: var(--text-secondary-color, #A7D9B8);
}

.page-download__how-to-download-section {
    padding: 60px 0;
    background-color: var(--background-color, #08160F);
}

.page-download__download-steps {
    display: grid;
    grid-template-columns: 1fr; /* Single column by default */
    gap: 60px;
}

@media (min-width: 769px) {
    .page-download__download-steps {
        grid-template-columns: repeat(2, 1fr); /* Two columns on larger screens */
    }
}

.page-download__download-platform {
    background-color: var(--card-bg-color, #11271B);
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color, #2E7A4E);
}

.page-download__platform-title {
    font-size: 2rem;
    color: var(--gold-color, #F2C14E); /* Use Gold for platform titles */
    text-align: center;
    margin-bottom: 30px;
    font-weight: bold;
}

.page-download__platform-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 30px;
}

.page-download__platform-image {
    width: 100%;
    max-width: 400px;
    min-width: 200px;
    min-height: 200px;
    height: auto;
    margin-bottom: 20px;
    border-radius: 10px;
    object-fit: cover;
}

.page-download__step-list {
    list-style: none;
    padding: 0;
    text-align: left;
    margin: 0;
    counter-reset: step-counter;
}

.page-download__step-item {
    font-size: 1.1rem;
    color: var(--text-secondary-color, #A7D9B8);
    margin-bottom: 15px;
    position: relative;
    padding-left: 30px;
}

.page-download__step-item::before {
    content: counter(step-counter);
    counter-increment: step-counter;
    position: absolute;
    left: 0;
    top: 0;
    background-color: var(--main-color, #11A84E);
    color: #ffffff;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: bold;
}

.page-download__text-link {
    color: var(--gold-color, #F2C14E);
    text-decoration: none;
}

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

.page-download__features-app-section {
    padding: 60px 0;
}

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

.page-download__feature-item {
    background-color: var(--background-color, #08160F);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color, #2E7A4E);
}

.page-download__feature-item-title {
    font-size: 1.4rem;
    color: var(--text-main-color, #F2FFF6);
    margin-bottom: 15px;
    font-weight: bold;
}

.page-download__feature-item-text {
    font-size: 1rem;
    color: var(--text-secondary-color, #A7D9B8);
}

.page-download__faq-section {
    padding: 60px 0;
    background-color: var(--background-color, #08160F);
}

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

.page-download__faq-item {
    background-color: var(--card-bg-color, #11271B);
    border-radius: 8px;
    margin-bottom: 15px;
    border: 1px solid var(--border-color, #2E7A4E);
    overflow: hidden;
}

.page-download__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--text-main-color, #F2FFF6);
    cursor: pointer;
    background-color: var(--card-bg-color, #11271B);
    border-bottom: 1px solid transparent; /* default */
    transition: background-color 0.3s ease, border-bottom-color 0.3s ease;
    list-style: none; /* Remove default summary marker */
}

.page-download__faq-item[open] .page-download__faq-question {
    border-bottom-color: var(--divider-color, #1E3A2A); /* Custom divider color */
}

.page-download__faq-question::-webkit-details-marker {
    display: none; /* Hide default marker for webkit browsers */
}

.page-download__faq-qtext {
    flex-grow: 1;
}

.page-download__faq-toggle {
    font-size: 1.5rem;
    margin-left: 20px;
    color: var(--main-color, #11A84E);
}

.page-download__faq-answer {
    padding: 20px 25px;
    font-size: 1rem;
    color: var(--text-secondary-color, #A7D9B8);
    background-color: var(--background-color, #08160F); /* Lighter background for answer */
}

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

.page-download__cta-description {
    font-size: 1.1rem;
    color: var(--text-secondary-color, #A7D9B8);
    max-width: 800px;
    margin: 0 auto 40px auto;
}

/* --- Responsive styles --- */
@media (max-width: 1024px) {
    .page-download__section-title {
        font-size: 2rem;
    }
    .page-download__hero-title {
        font-size: clamp(1.8rem, 5vw, 3rem);
    }
    .page-download__feature-title {
        font-size: 1.3rem;
    }
    .page-download__platform-title {
        font-size: 1.8rem;
    }
    .page-download__faq-question {
        font-size: 1.1rem;
    }
}

@media (max-width: 768px) {
    .page-download__container {
        padding: 0 15px;
    }
    .page-download__section-title {
        font-size: 1.8rem;
        margin-bottom: 30px;
    }
    .page-download__hero-section {
        padding: 10px 0 40px 0;
    }
    .page-download__hero-title {
        font-size: clamp(1.5rem, 6vw, 2.5rem);
    }
    .page-download__hero-description {
        font-size: 1rem;
    }
    .page-download__hero-cta-buttons,
    .page-download__cta-buttons-bottom {
        flex-direction: column;
        gap: 15px;
        align-items: center;
        padding: 0 15px;
    }
    .page-download__btn-primary,
    .page-download__btn-secondary,
    .page-download__btn-download,
    .page-download__btn-large {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding: 12px 20px !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }
    .page-download__why-download-section,
    .page-download__how-to-download-section,
    .page-download__features-app-section,
    .page-download__faq-section,
    .page-download__cta-section {
        padding: 40px 0;
    }
    .page-download__feature-grid,
    .page-download__feature-list {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .page-download__download-platform {
        padding: 30px 20px;
    }
    .page-download__platform-title {
        font-size: 1.5rem;
    }
    .page-download__step-item {
        font-size: 0.95rem;
    }
    .page-download__faq-question {
        font-size: 1rem;
        padding: 15px 20px;
    }
    .page-download__faq-answer {
        padding: 15px 20px;
        font-size: 0.95rem;
    }

    /* Images responsive rules */
    .page-download img {
        max-width: 100% !important;
        height: auto !important;
        display: block !important;
    }
    .page-download__section,
    .page-download__card,
    .page-download__container,
    .page-download__hero-image-wrapper,
    .page-download__download-platform,
    .page-download__feature-card,
    .page-download__feature-item,
    .page-download__faq-item {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        /* padding-left: 15px; */ /* Handled by specific sections below to avoid double padding */
        /* padding-right: 15px; */
    }
    /* Specific override for sections that already have padding within container */
    .page-download__why-download-section .page-download__container,
    .page-download__how-to-download-section .page-download__container,
    .page-download__features-app-section .page-download__container,
    .page-download__faq-section .page-download__container,
    .page-download__cta-section .page-download__container {
        padding-left: 0 !important;
        padding-right: 0 !important;
    }
    .page-download__faq-list {
        padding-left: 15px !important;
        padding-right: 15px !important;
    }
    /* Video related, although no video tag explicitly used in HTML, keep for safety */
    .page-download video,
    .page-download__video {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }
    .page-download__video-section,
    .page-download__video-container,
    .page-download__video-wrapper {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px !important;
        padding-right: 15px !important;
        overflow: hidden !important;
    }
    .page-download__video-section {
        padding-top: 10px !important; /* body 已承担 --header-offset，此处禁止 var(--header-offset) */
    }
    .page-download__video-wrapper {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
    .page-download__feature-icon,
    .page-download__platform-image {
        min-width: unset;
        min-height: unset;
    }
}

/* Ensure text elements within main content area have appropriate contrast */
.page-download p,
.page-download li,
.page-download h1,
.page-download h2,
.page-download h3,
.page-download h4,
.page-download h5,
.page-download h6 {
    color: var(--text-main-color, #F2FFF6); /* Default to main text color */
}

/* Override for secondary text color */
.page-download__hero-description,
.page-download__feature-text,
.page-download__step-item,
.page-download__feature-item-text,
.page-download__faq-answer p,
.page-download__cta-description {
    color: var(--text-secondary-color, #A7D9B8);
}

/* Link color for text links */
.page-download__text-link {
    color: var(--gold-color, #F2C14E);
}