/* style/download.css */
:root {
    --primary-color: #2F6BFF;
    --secondary-color: #6FA3FF;
    --button-gradient: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
    --card-bg: #FFFFFF;
    --background-light: #F4F7FB;
    --text-main: #1F2D3D;
    --text-dark: #000000;
    --border-color: #D6E2FF;
    --glow-color: #A5C4FF;
}

.page-download {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-main); /* Default text color for light backgrounds */
    background-color: var(--background-light);
}

.page-download__hero-section {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 10px 20px 60px; /* Small padding-top as body handles header offset */
    background-color: var(--primary-color);
    color: #ffffff;
    text-align: center;
    overflow: hidden;
}

.page-download__hero-content {
    max-width: 900px;
    z-index: 1;
    margin-bottom: 40px;
}

.page-download__main-title {
    font-size: clamp(2.2rem, 4vw, 3.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #ffffff;
}

.page-download__description {
    font-size: 1.1rem;
    margin-bottom: 30px;
    color: rgba(255, 255, 255, 0.9);
}

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

.page-download__btn-primary,
.page-download__btn-secondary {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1rem;
    transition: all 0.3s ease;
    white-space: normal; /* Allow text wrapping for buttons */
    word-wrap: break-word;
    box-sizing: border-box;
    max-width: 100%;
}

.page-download__btn-primary {
    background: var(--button-gradient);
    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);
    border: 2px solid var(--primary-color);
}

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

.page-download__hero-image-wrapper {
    width: 100%;
    max-width: 1200px;
    margin-top: 20px;
    position: relative;
    overflow: hidden;
    border-radius: 12px;
}

.page-download__hero-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    border-radius: 12px;
}

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

.page-download__section-title {
    font-size: clamp(1.8rem, 3vw, 2.8rem);
    font-weight: 700;
    margin-bottom: 30px;
    text-align: center;
    color: var(--text-dark);
}

.page-download__dark-section {
    background-color: var(--primary-color);
    color: #ffffff;
    padding: 60px 0;
}

.page-download__dark-section .page-download__section-title,
.page-download__dark-section .page-download__text-block,
.page-download__dark-section .page-download__feature-item,
.page-download__dark-section .page-download__faq-qtext,
.page-download__dark-section .page-download__faq-answer p {
    color: #ffffff;
}

.page-download__light-bg {
    background-color: var(--background-light);
    color: var(--text-main);
    padding: 60px 0;
}

.page-download__why-download .page-download__section-title {
    color: #ffffff;
}

.page-download__text-block {
    font-size: 1rem;
    margin-bottom: 20px;
    text-align: justify;
}

.page-download__feature-list {
    list-style: none;
    padding: 0;
    margin-bottom: 30px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.page-download__feature-item {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 20px;
    font-size: 1rem;
    text-align: left;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.page-download__feature-item strong {
    color: var(--secondary-color);
}

.page-download__video-section {
    padding: 60px 0;
    background-color: var(--background-light);
    text-align: center;
}

.page-download__video-wrapper {
    width: 100%;
    max-width: 800px;
    margin: 0 auto 20px;
    position: relative;
    padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
    height: 0;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    box-sizing: border-box;
}

.page-download__video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: block;
    border-radius: 12px;
}

.page-download__video-description {
    font-size: 1rem;
    color: var(--text-main);
}

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

.page-download__guide-steps {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: 40px;
}

.page-download__guide-platform {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    text-align: left;
    border: 1px solid var(--border-color);
}

.page-download__platform-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 20px;
    text-align: center;
}

.page-download__step-list {
    list-style: decimal;
    padding-left: 20px;
    margin-bottom: 20px;
}

.page-download__step-item {
    margin-bottom: 10px;
    font-size: 1rem;
    color: var(--text-main);
}

.page-download__step-item strong {
    color: var(--text-dark);
}

.page-download__text-link {
    color: var(--primary-color);
    text-decoration: underline;
}

.page-download__text-link:hover {
    color: var(--secondary-color);
}

.page-download__qr-code {
    display: block;
    margin: 20px auto 10px;
    width: 250px;
    height: 250px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.page-download__qr-caption {
    font-size: 0.9rem;
    color: #666;
    text-align: center;
}

.page-download__system-requirements {
    padding: 60px 0;
    background-color: var(--background-light);
    text-align: center;
}

.page-download__requirements-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-top: 40px;
}

.page-download__requirement-item {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    text-align: left;
    border: 1px solid var(--border-color);
}

.page-download__requirement-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 15px;
    text-align: center;
}

.page-download__spec-list {
    list-style: disc;
    padding-left: 20px;
    color: var(--text-main);
}

.page-download__spec-list li {
    margin-bottom: 8px;
    font-size: 1rem;
}

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

.page-download__faq-section .page-download__section-title {
    color: var(--text-dark);
}

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

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

.page-download__faq-item {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    text-align: left;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
}

.page-download__faq-item summary {
    list-style: none;
    cursor: pointer;
    padding: 20px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-dark);
    background-color: #f8f8f8;
    border-bottom: 1px solid var(--border-color);
}

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

.page-download__faq-qtext {
    flex-grow: 1;
    margin-right: 15px;
}

.page-download__faq-toggle {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

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

.page-download__faq-answer {
    padding: 20px 25px;
    font-size: 1rem;
    color: var(--text-main);
    line-height: 1.8;
    border-top: 1px solid #eee;
    background-color: #ffffff;
}

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

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

/* --- Responsive Design --- */
@media (max-width: 1024px) {
    .page-download__hero-content {
        margin-bottom: 30px;
    }
    .page-download__hero-image-wrapper {
        margin-top: 0;
    }
    .page-download__guide-steps {
        grid-template-columns: 1fr;
    }
    .page-download__requirements-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .page-download__hero-section {
        padding: 10px 15px 40px;
    }
    .page-download__main-title {
        font-size: clamp(1.8rem, 6vw, 2.5rem);
    }
    .page-download__description {
        font-size: 1rem;
        margin-bottom: 20px;
    }
    .page-download__cta-buttons {
        flex-direction: column;
        gap: 15px;
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }
    .page-download__btn-primary,
    .page-download__btn-secondary {
        width: 100% !important;
        padding: 12px 20px;
        font-size: 0.95rem;
    }

    .page-download__section-title {
        font-size: clamp(1.5rem, 5vw, 2.2rem);
        margin-bottom: 25px;
    }
    .page-download__dark-section,
    .page-download__light-bg,
    .page-download__video-section,
    .page-download__download-guide,
    .page-download__system-requirements,
    .page-download__faq-section,
    .page-download__contact-cta {
        padding: 40px 0;
    }

    .page-download__container {
        padding: 0 15px !important; /* Ensure padding on mobile */
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        overflow: hidden !important;
    }

    /* Mobile image responsiveness */
    .page-download img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }
    /* Mobile video responsiveness */
    .page-download video,
    .page-download__video {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }
    .page-download__video-wrapper {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        overflow: hidden !important;
    }
    .page-download__video-section {
        padding-top: 10px !important; /* body already handles --header-offset */
    }

    .page-download__feature-list {
        grid-template-columns: 1fr;
    }
    .page-download__faq-item summary {
        font-size: 1rem;
        padding: 15px 20px;
    }
    .page-download__faq-answer {
        padding: 15px 20px;
    }

    .page-download__qr-code {
        width: 180px;
        height: 180px;
    }
}