:root {
    --primary-color: #2F6BFF;
    --secondary-color: #6FA3FF;
    --btn-gradient: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
    --card-bg: #FFFFFF;
    --bg-color-main: #F4F7FB;
    --text-main: #1F2D3D;
    --text-black: #000000;
    --border-color: #D6E2FF;
    --glow-color: #A5C4FF;
}

/* Base styles for the download page */
.page-download {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-main); /* #1F2D3D */
    background-color: var(--bg-color-main); /* #F4F7FB */
}

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

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

.page-download__dark-section {
    background: var(--primary-color); /* #2F6BFF */
    color: #ffffff;
}

.page-download__section-title {
    font-size: 36px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 20px;
    color: var(--text-main); /* #1F2D3D */
    line-height: 1.2;
}

.page-download__dark-section .page-download__section-title {
    color: #ffffff;
}

.page-download__section-intro {
    font-size: 18px;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
    color: #555555;
}

.page-download__dark-section .page-download__section-intro {
    color: #f0f0f0;
}

/* Hero Section */
.page-download__hero-section {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 10px; /* Small top padding as body handles header offset */
    padding-bottom: 60px;
    overflow: hidden;
    background-color: var(--primary-color); /* Fallback */
    background-image: linear-gradient(180deg, var(--secondary-color) 0%, var(--primary-color) 100%); /* #6FA3FF to #2F6BFF */
    min-height: 600px;
    color: #ffffff;
}

.page-download__hero-image-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

.page-download__hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.3; /* Subtle background image */
}

.page-download__hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    padding: 20px;
}

.page-download__main-title {
    font-size: clamp(32px, 5vw, 48px); /* Responsive font size */
    font-weight: 700;
    margin-bottom: 15px;
    color: #ffffff;
    line-height: 1.2;
}

.page-download__hero-description {
    font-size: 20px;
    margin-bottom: 30px;
    color: #f0f0f0;
}

.page-download__cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap; /* Ensure buttons wrap on smaller screens */
}

.page-download__btn-primary,
.page-download__btn-secondary,
.page-download__btn-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 15px 30px;
    border-radius: 8px;
    font-size: 18px;
    font-weight: bold;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    white-space: normal; /* Allow text wrapping */
    word-wrap: break-word; /* Allow text wrapping */
    box-sizing: border-box;
    max-width: 100%;
    width: auto;
}

.page-download__btn-primary {
    background: var(--btn-gradient); /* linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%) */
    color: #ffffff;
    border: 2px solid transparent;
    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: var(--primary-color); /* #2F6BFF */
    border: 2px solid var(--primary-color); /* #2F6BFF */
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-download__btn-secondary:hover {
    background: var(--primary-color);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

/* General Card Styles */
.page-download__card {
    background: var(--card-bg); /* #FFFFFF */
    border: 1px solid var(--border-color); /* #D6E2FF */
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    color: var(--text-main); /* #1F2D3D */
    display: flex;
    flex-direction: column;
}

.page-download__card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.page-download__card-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-black); /* #000000 */
}

/* Benefits Section */
.page-download__benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.page-download__benefit-card p {
    font-size: 16px;
    line-height: 1.7;
}

/* How to Download Section */
.page-download__download-platform {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 30px;
}

.page-download__platform-card {
    text-align: center;
}

.page-download__platform-image {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 20px auto;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-download__instruction-list {
    list-style: none;
    padding: 0;
    margin: 20px 0 30px;
    text-align: left;
    counter-reset: step-counter;
}

.page-download__instruction-list li {
    margin-bottom: 15px;
    font-size: 16px;
    line-height: 1.6;
    position: relative;
    padding-left: 30px;
}

.page-download__instruction-list li strong {
    color: var(--primary-color); /* #2F6BFF */
}

.page-download__instruction-list li::before {
    content: counter(step-counter);
    counter-increment: step-counter;
    position: absolute;
    left: 0;
    top: 0;
    background: var(--primary-color); /* #2F6BFF */
    color: #ffffff;
    border-radius: 50%;
    width: 25px;
    height: 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: bold;
}

.page-download__platform-card .page-download__btn-primary {
    margin-top: 20px;
}

/* Game Showcase Section */
.page-download__game-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.page-download__game-card .page-download__btn-link {
    background: none;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    padding: 10px 20px;
    border-radius: 5px;
    font-size: 16px;
    margin-top: auto; /* Push to bottom */
}

.page-download__game-card .page-download__btn-link:hover {
    background: var(--primary-color);
    color: #ffffff;
}

/* Security Section */
.page-download__security-content {
    display: flex;
    align-items: center;
    gap: 50px;
    max-width: 1000px;
    margin: 40px auto 0;
}

.page-download__security-image {
    flex: 1;
    max-width: 50%;
    height: auto;
    display: block;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.page-download__security-list {
    flex: 1;
    list-style: none;
    padding: 0;
    text-align: left;
}

.page-download__security-list li {
    font-size: 18px;
    margin-bottom: 15px;
    line-height: 1.5;
    position: relative;
    padding-left: 30px;
}

.page-download__security-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #4CAF50; /* Green checkmark */
    font-weight: bold;
    font-size: 20px;
}

/* Promotions Section */
.page-download__promotions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.page-download__promo-card .page-download__promo-image {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    margin-bottom: 15px;
}

.page-download__promo-card .page-download__card-title {
    font-size: 20px;
    text-align: left;
    color: var(--text-black); /* #000000 */
}

.page-download__promo-card p {
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 15px;
}

.page-download__promo-card .page-download__btn-link {
    background: none;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    padding: 10px 20px;
    border-radius: 5px;
    font-size: 16px;
    margin-top: auto;
    width: fit-content;
}

.page-download__promo-card .page-download__btn-link:hover {
    background: var(--primary-color);
    color: #ffffff;
}

.page-download__cta-bottom {
    text-align: center;
}

/* FAQ Section */
details.page-download__faq-item {
  margin-bottom: 15px;
  border-radius: 10px; /* Increased border-radius */
  border: 1px solid var(--border-color); /* #D6E2FF */
  overflow: hidden;
  background: var(--card-bg); /* #FFFFFF */
}
details.page-download__faq-item summary.page-download__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px; /* Increased padding */
  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: #f8f8f8; /* Slightly lighter hover */
}
.page-download__faq-qtext {
  flex: 1;
  font-size: 18px; /* Slightly larger font */
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: var(--text-black); /* #000000 */
}
.page-download__faq-toggle {
  font-size: 28px; /* Larger icon */
  font-weight: bold;
  color: var(--primary-color); /* Use primary color for toggle */
  flex-shrink: 0;
  margin-left: 20px; /* Increased margin */
  width: 30px; /* Larger hit area */
  text-align: center;
}
details.page-download__faq-item .page-download__faq-answer {
  padding: 0 25px 25px; /* Consistent padding */
  background: #f9f9f9;
  border-radius: 0 0 10px 10px; /* Match item border-radius */
  color: var(--text-main); /* #1F2D3D */
}
.page-download__faq-answer p {
    margin: 0;
    padding: 0;
    font-size: 16px;
    line-height: 1.7;
}

/* Final CTA Section */
.page-download__final-cta-section {
    padding: 80px 0;
}

.page-download__final-cta-section .page-download__section-title {
    margin-bottom: 15px;
}

.page-download__final-cta-section .page-download__cta-buttons {
    margin-top: 40px;
}


/* --- Responsive Styles --- */
@media (max-width: 1024px) {
    .page-download__container {
        padding: 20px 30px;
    }
    .page-download__section-title {
        font-size: 32px;
    }
    .page-download__hero-description {
        font-size: 18px;
    }
    .page-download__main-title {
        font-size: clamp(28px, 4.5vw, 42px);
    }
    .page-download__download-platform {
        grid-template-columns: 1fr; /* Stack download platforms */
    }
    .page-download__security-content {
        flex-direction: column;
        text-align: center;
    }
    .page-download__security-image {
        max-width: 80%;
        margin-bottom: 30px;
    }
    .page-download__security-list {
        text-align: center;
    }
    .page-download__security-list li {
        padding-left: 0;
        margin-bottom: 10px;
    }
    .page-download__security-list li::before {
        position: static;
        display: inline-block;
        margin-right: 10px;
    }
}

@media (max-width: 768px) {
    /* HERO 主图区域 */
    .page-download__hero-section {
        padding-top: 10px;
        padding-bottom: 40px;
        min-height: 450px;
    }
    .page-download__hero-image {
        object-fit: contain !important;
        aspect-ratio: unset !important;
        width: 100% !important;
        height: auto !important;
    }
    .page-download__main-title {
        font-size: clamp(28px, 8vw, 38px);
        margin-bottom: 10px;
    }
    .page-download__hero-description {
        font-size: 16px;
        margin-bottom: 20px;
    }
    .page-download__cta-buttons {
        flex-direction: column !important;
        gap: 15px;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 0 15px;
    }
    /* 按钮与按钮容器 */
    .page-download__btn-primary,
    .page-download__btn-secondary,
    .page-download__btn-link,
    .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;
    }
    .page-download__cta-buttons,
    .page-download__button-group,
    .page-download__btn-container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        flex-wrap: wrap !important;
        gap: 10px;
    }

    .page-download__section {
        padding: 40px 0;
    }
    .page-download__container {
        padding: 0 15px;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
    .page-download__section-title {
        font-size: 28px;
        margin-bottom: 15px;
    }
    .page-download__section-intro {
        font-size: 16px;
        margin-bottom: 30px;
    }

    /* 通用图片与容器 */
    .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 {
        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 / Benefits Grid */
    .page-download__benefits-grid,
    .page-download__game-grid,
    .page-download__promotions-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        overflow-x: hidden;
    }
    .page-download__platform-card {
        padding: 20px;
    }
    .page-download__platform-card .page-download__card-title {
        font-size: 20px;
    }
    .page-download__instruction-list {
        margin: 15px 0 20px;
    }
    .page-download__instruction-list li {
        font-size: 15px;
        margin-bottom: 10px;
        padding-left: 25px;
    }
    .page-download__instruction-list li::before {
        width: 22px;
        height: 22px;
        font-size: 13px;
    }

    /* 装饰主标题 + 长文 SEO 区 (general text blocks) */
    .page-download__article-body {
        max-width: 100% !important;
        margin: 0 auto !important;
        padding: 0 15px;
        box-sizing: border-box;
        font-size: 16px;
        line-height: 1.6;
    }
    .page-download__article-figure {
        max-width: 100% !important;
        margin: 20px auto !important;
        display: block;
    }

    /* FAQ Section */
    details.page-download__faq-item summary.page-download__faq-question {
        padding: 15px 20px;
    }
    .page-download__faq-qtext {
        font-size: 16px;
    }
    .page-download__faq-toggle {
        font-size: 24px;
        margin-left: 15px;
        width: 25px;
    }
    details.page-download__faq-item .page-download__faq-answer {
        padding: 0 20px 20px;
    }
    .page-download__faq-answer p {
        font-size: 15px;
    }

    /* Security Section */
    .page-download__security-image {
        max-width: 100%;
    }
    .page-download__security-list li {
        font-size: 16px;
    }
}