/* style/download.css */
/* 页面完整样式代码 - 注意：所有选择器必须使用BEM命名规则（双下划线__连接） */

/* General page styling */
.page-download {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #ffffff; /* Light text for dark body background */
    background-color: #0a0a0a; /* Ensure consistency with body background */
}

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

.page-download__dark-bg {
    background-color: #1A202C; /* Primary brand color for sections */
    color: #ffffff;
}

.page-download__light-bg {
    background-color: #ffffff;
    color: #1A202C;
}

/* Hero Section */
.page-download__hero-section {
    position: relative;
    padding: 80px 0 40px; /* Adjusted padding, assuming header offset is handled by shared.css on body */
    text-align: center;
    background: linear-gradient(135deg, #1A202C, #0a0a0a); /* Blend brand color with body bg */
    overflow: hidden;
}

.page-download__main-title {
    font-size: 3.5em;
    font-weight: bold;
    margin-bottom: 20px;
    color: #FFD700; /* Auxiliary color for emphasis */
    line-height: 1.2;
}

.page-download__hero-description {
    font-size: 1.2em;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page-download__cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap; /* Allow wrapping on smaller screens */
}

.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: 1.1em;
    font-weight: bold;
    text-decoration: none;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
    text-align: center;
}

.page-download__btn-primary {
    background-color: #FFD700; /* Auxiliary color */
    color: #1A202C; /* Main brand color for text */
    border: 2px solid #FFD700;
}

.page-download__btn-primary:hover {
    background-color: #e6c200;
    border-color: #e6c200;
}

.page-download__btn-secondary {
    background-color: transparent;
    color: #FFD700; /* Auxiliary color */
    border: 2px solid #FFD700;
}

.page-download__btn-secondary:hover {
    background-color: #FFD700;
    color: #1A202C;
}

.page-download__btn-large {
    padding: 18px 35px;
    font-size: 1.3em;
}

.page-download__qr-code-area {
    margin-top: 30px;
    margin-bottom: 40px;
    text-align: center;
}

.page-download__qr-image {
    max-width: 250px;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    margin-bottom: 15px;
}

.page-download__qr-text {
    font-size: 1.1em;
    color: #f0f0f0;
}

.page-download__hero-image {
    max-width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    margin-top: 40px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

/* Section General */
.page-download__section {
    padding: 60px 0;
    text-align: center;
}

.page-download__section-title {
    font-size: 2.5em;
    margin-bottom: 20px;
    color: #FFD700;
    font-weight: bold;
}

.page-download__section-description {
    font-size: 1.1em;
    margin-bottom: 50px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    color: #e0e0e0;
}

/* Feature Grid */
.page-download__feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
    text-align: left;
}

.page-download__feature-card,
.page-download__step-card {
    background-color: rgba(255, 255, 255, 0.08); /* Slightly transparent white for cards on dark bg */
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    color: #ffffff;
}

.page-download__feature-card:hover,
.page-download__step-card:hover {
    transform: translateY(-10px);
}

.page-download__feature-icon {
    width: 400px; /* Minimum size requirement for content image */
    height: 300px; /* Minimum size requirement for content image */
    object-fit: contain; /* Ensure image fits */
    margin-bottom: 20px;
    border-radius: 8px;
    display: block;
}

.page-download__card-title {
    font-size: 1.5em;
    color: #FFD700;
    margin-bottom: 15px;
    font-weight: bold;
}

.page-download__card-text {
    font-size: 1em;
    color: #e0e0e0;
    flex-grow: 1; /* Make text fill space */
}

/* How To Download Section */
.page-download__download-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.page-download__step-card {
    text-align: left;
    padding: 40px;
}

.page-download__step-list {
    list-style: none;
    padding: 0;
    margin-bottom: 30px;
}

.page-download__step-list li {
    margin-bottom: 15px;
    font-size: 1.1em;
    color: #e0e0e0;
}

.page-download__step-list strong {
    color: #FFD700;
}

.page-download__installation-image {
    max-width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    margin-top: 50px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

/* App Features Section */
.page-download__app-features .page-download__feature-grid {
    margin-bottom: 50px;
}

.page-download__features-image {
    max-width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    margin-top: 40px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

/* FAQ Section */
.page-download__faq-section {
    padding-bottom: 80px;
}

.page-download__faq-list {
    max-width: 900px;
    margin: 50px auto 0;
    text-align: left;
}

.page-download__faq-item {
    background-color: rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.page-download__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    cursor: pointer;
    background-color: #1A202C; /* Darker background for question */
    color: #FFD700;
    font-size: 1.2em;
    font-weight: bold;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.page-download__faq-question:hover {
    background-color: #2a303c;
}

.page-download__faq-title {
    margin: 0;
    color: inherit;
    font-size: 1em; /* Adjust to fit parent */
    flex-grow: 1;
}

.page-download__faq-toggle {
    font-size: 1.5em;
    line-height: 1;
    transition: transform 0.3s ease;
}

.page-download__faq-item.active .page-download__faq-toggle {
    transform: rotate(45deg);
}

.page-download__faq-answer {
    max-height: 0;
    overflow: hidden;
    padding: 0 25px;
    transition: max-height 0.3s ease, padding 0.3s ease;
    background-color: rgba(255, 255, 255, 0.05); /* Lighter background for answer */
    color: #e0e0e0;
}

.page-download__faq-item.active .page-download__faq-answer {
    max-height: 1000px !important; /* Sufficiently large to show content */
    padding: 20px 25px;
}

.page-download__faq-text {
    margin: 0;
    font-size: 1em;
}

.page-download__faq-image {
    max-width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    margin-top: 50px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

/* Final CTA Section */
.page-download__cta-final {
    padding-top: 80px;
    padding-bottom: 80px;
    background-color: #0a0a0a; /* Ensure consistency with body background */
}

.page-download__cta-image {
    max-width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    margin-top: 50px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
    .page-download__main-title {
        font-size: 2.8em;
    }
    .page-download__section-title {
        font-size: 2em;
    }
    .page-download__feature-grid,
    .page-download__download-steps {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .page-download__hero-section {
        padding: 60px 0 30px;
    }
    .page-download__main-title {
        font-size: 2.2em;
    }
    .page-download__hero-description {
        font-size: 1em;
    }
    .page-download__cta-buttons {
        flex-direction: column;
        gap: 15px;
        padding: 0 15px;
    }
    .page-download__btn-primary,
    .page-download__btn-secondary {
        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-download__section {
        padding: 40px 0;
    }
    .page-download__section-title {
        font-size: 1.8em;
    }
    .page-download__section-description {
        font-size: 0.95em;
    }
    .page-download__container {
        padding: 0 15px; /* Add padding for mobile content */
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }

    /* Images and Videos Responsive */
    .page-download img {
        max-width: 100% !important;
        height: auto !important;
        display: block !important;
    }
    .page-download__hero-image,
    .page-download__feature-icon,
    .page-download__installation-image,
    .page-download__features-image,
    .page-download__faq-image,
    .page-download__cta-image,
    .page-download__qr-image {
        max-width: 100% !important;
        height: auto !important;
        display: block !important;
        margin-left: auto !important;
        margin-right: auto !important;
    }

    .page-download__section,
    .page-download__card,
    .page-download__container,
    .page-download__qr-code-area,
    .page-download__cta-buttons,
    .page-download__download-steps,
    .page-download__feature-grid {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        overflow: hidden !important; /* Prevent horizontal scroll */
    }

    .page-download__faq-question {
        font-size: 1.1em;
        padding: 15px 20px;
    }
    .page-download__faq-answer {
        padding: 15px 20px;
    }
}

@media (max-width: 480px) {
    .page-download__main-title {
        font-size: 1.8em;
    }
    .page-download__section-title {
        font-size: 1.5em;
    }
    .page-download__btn-large {
        font-size: 1.1em;
        padding: 15px 25px;
    }
}