/* ========== 下载 Hero 区域 ========== */
.download-hero {
    padding: 120px 0 60px;
    background: 
        radial-gradient(ellipse 80% 50% at 50% 0%, rgba(67, 223, 188, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 80% 100%, rgba(67, 223, 188, 0.08) 0%, transparent 40%),
        linear-gradient(180deg, #0a0a0a 0%, #0d1520 50%, #0a0a0a 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.download-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(67, 223, 188, 0.3), transparent);
}

.download-hero-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.download-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(67, 223, 188, 0.1);
    border: 1px solid rgba(67, 223, 188, 0.2);
    color: #43DFBC;
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 24px;
}

.download-badge svg {
    width: 16px;
    height: 16px;
}

.download-hero-title {
    font-size: 48px;
    font-weight: 800;
    color: #ffffff;
    line-height: 1.15;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.download-hero-title .highlight {
    background: linear-gradient(135deg, #43DFBC 0%, #2bb89a 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.download-hero-subtitle {
    font-size: 18px;
    color: #888888;
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto;
}

/* ========== 主下载区域 ========== */
.download-main-section {
    padding: 60px 0;
    background: linear-gradient(180deg, #f8f9fa 0%, #ffffff 100%);
}

.download-card {
    max-width: 700px;
    margin: 0 auto;
    background: #ffffff;
    border: 1px solid #e8e8e8;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.08);
}

.download-card-header {
    padding: 32px;
    background: linear-gradient(135deg, rgba(67, 223, 188, 0.05) 0%, rgba(67, 223, 188, 0.02) 100%);
    border-bottom: 1px solid #e8e8e8;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
}

.download-product-info {
    display: flex;
    align-items: center;
    gap: 16px;
}

.download-product-logo {
    width: 56px;
    height: 56px;
    object-fit: contain;
}

.download-product-text h2 {
    font-size: 20px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 4px;
}

.download-product-text p {
    font-size: 14px;
    color: #666666;
}

.download-meta {
    display: flex;
    gap: 20px;
}

.download-meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #666666;
    font-size: 13px;
}

.download-meta-item svg {
    width: 16px;
    height: 16px;
    color: #43DFBC;
}

.download-card-body {
    padding: 32px;
}

.download-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 32px;
}

.download-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #555555;
    font-size: 14px;
}

.download-feature svg {
    width: 18px;
    height: 18px;
    color: #43DFBC;
    flex-shrink: 0;
}

.download-action {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.download-btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 18px 48px;
    background: linear-gradient(135deg, #43DFBC 0%, #2bb89a 100%);
    color: #ffffff;
    font-size: 18px;
    font-weight: 600;
    border-radius: 14px;
    transition: all 0.3s ease;
    box-shadow: 0 8px 32px rgba(67, 223, 188, 0.3);
}

.download-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(67, 223, 188, 0.4);
}

.download-btn-primary svg {
    width: 22px;
    height: 22px;
}

.download-system-req {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #888888;
    font-size: 13px;
}

.download-system-req svg {
    width: 16px;
    height: 16px;
    color: #43DFBC;
}

/* ========== 升级提示区域 ========== */
.download-upgrade-section {
    padding: 40px 0;
    background: #ffffff;
}

.upgrade-card {
    max-width: 700px;
    margin: 0 auto;
    background: linear-gradient(135deg, rgba(67, 223, 188, 0.08) 0%, rgba(67, 223, 188, 0.03) 100%);
    border: 1px solid rgba(67, 223, 188, 0.2);
    border-radius: 16px;
    padding: 28px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.upgrade-content {
    display: flex;
    align-items: center;
    gap: 20px;
}

.upgrade-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #43DFBC 0%, #2bb89a 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.upgrade-icon svg {
    width: 24px;
    height: 24px;
    color: #ffffff;
}

.upgrade-text h3 {
    font-size: 16px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 4px;
}

.upgrade-text p {
    font-size: 14px;
    color: #666666;
}

.upgrade-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: #ffffff;
    color: #43DFBC;
    font-size: 14px;
    font-weight: 600;
    border-radius: 10px;
    border: 1px solid rgba(67, 223, 188, 0.3);
    transition: all 0.3s ease;
    white-space: nowrap;
}

.upgrade-btn:hover {
    background: #43DFBC;
    color: #ffffff;
    border-color: #43DFBC;
}

.upgrade-btn svg {
    width: 16px;
    height: 16px;
}

/* ========== 安装提示区域 ========== */
.download-tips-section {
    padding: 60px 0 80px;
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
}

.tips-header {
    text-align: center;
    margin-bottom: 40px;
}

.tips-header h2 {
    font-size: 28px;
    font-weight: 700;
    color: #1a1a1a;
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 900px;
    margin: 0 auto;
}

.tip-card {
    background: #ffffff;
    border: 1px solid #e8e8e8;
    border-radius: 16px;
    padding: 32px 24px;
    text-align: center;
    transition: all 0.3s ease;
}

.tip-card:hover {
    border-color: rgba(67, 223, 188, 0.3);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

.tip-number {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #43DFBC 0%, #2bb89a 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    color: #ffffff;
    margin: 0 auto 20px;
}

.tip-card h4 {
    font-size: 16px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 10px;
}

.tip-card p {
    font-size: 14px;
    color: #666666;
    line-height: 1.6;
}

/* ========== 响应式样式 ========== */
@media (max-width: 768px) {
    .download-hero {
        padding: 100px 0 50px;
        margin-top: -60px;
    }

    .download-hero-title {
        font-size: 32px;
    }

    .download-hero-subtitle {
        font-size: 16px;
    }

    .download-card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .download-meta {
        width: 100%;
        justify-content: flex-start;
    }

    .download-features {
        grid-template-columns: 1fr;
    }

    .upgrade-card {
        flex-direction: column;
        text-align: center;
    }

    .upgrade-content {
        flex-direction: column;
    }

    .tips-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .download-hero-title {
        font-size: 28px;
    }

    .download-card-header,
    .download-card-body {
        padding: 24px;
    }

    .download-btn-primary {
        width: 100%;
        padding: 16px 24px;
        font-size: 16px;
    }

    .upgrade-card {
        padding: 24px 20px;
    }

    .upgrade-btn {
        width: 100%;
        justify-content: center;
    }
}