/* 下载区域样式 */

/* 下载区域 */
.download-section {
    background: white;
    padding: 80px 40px;
    border-radius: var(--border-radius);
    margin-bottom: 80px;
    text-align: center;
    box-shadow: var(--shadow-light);
}

.download-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.download-content p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 48px;
}

.download-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: white;
    border-radius: var(--border-radius);
    text-decoration: none;
    color: var(--text-primary);
    transition: all var(--animation-speed);
    border: 2px Solid #e0e0e0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.download-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium);
}

.btn-icon {
    font-size: 2rem;
}

.btn-icon svg {
    width: 32px;
    height: 32px;
}

.btn-text {
    text-align: left;
}

.btn-label {
    display: block;
    font-weight: 600;
    font-size: 1.1rem;
}

.btn-subtitle {
    display: block;
    font-size: 0.9rem;
    opacity: 0.7;
}

/* 二维码悬浮窗口 */
.download-btn {
    position: relative;
}

.qr-tooltip {
    position: abSolute;
    bottom: 120%;
    left: 50%;
    transform: translateX(-50%);
    background: white;
    border-radius: 20px;
    box-shadow: 0 25px 50px rgba(0,0,0,0.15), 0 10px 20px rgba(0,0,0,0.1);
    padding: 24px;
    width: 320px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 1000;
    border: 1px Solid rgba(255,255,255,0.2);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.download-btn:hover .qr-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-10px);
}

.qr-tooltip-content {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.qr-tooltip-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 20px;
}

.hello-badge {
    background: linear-gradient(135deg, #ff6b6b, #ff5252);
    color: white;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(255, 107, 107, 0.3);
    letter-spacing: 0.5px;
    order: 2;
}

.app-info {
    flex: 1;
    text-align: left;
    order: 1;
}

.app-info h4 {
    margin: 0 0 4px 0;
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.app-info p {
    margin: 0;
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

.qr-code-container {
    display: flex;
    justify-content: center;
}

.qr-code-placeholder {
    width: 140px;
    height: 140px;
    background: linear-gradient(135deg, #f8f9fa, #ffffff);
    border: 2px Solid #e8e8e8;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.05);
    margin: 12px 0;
}

.qr-pattern {
    position: abSolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        repeating-linear-gradient(0deg, #ddd, #ddd 2px, transparent 2px, transparent 8px),
        repeating-linear-gradient(90deg, #ddd, #ddd 2px, transparent 2px, transparent 8px);
    opacity: 0.3;
}

.qr-logo {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), #ff4757);
    color: white;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 20px;
    z-index: 2;
    box-shadow: 0 4px 12px rgba(255, 71, 87, 0.3);
    border: 2px Solid white;
}

.version-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px Solid #f0f0f0;
}

.platform {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.3px;
}

.version {
    font-size: 28px;
    font-weight: 800;
    background: linear-gradient(135deg, #ff4757, #ff3742);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.qr-tooltip-arrow {
    position: abSolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 12px Solid transparent;
    border-right: 12px Solid transparent;
    border-top: 12px Solid white;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.qr-tooltip-arrow::before {
    content: '';
    position: abSolute;
    top: -13px;
    left: -12px;
    width: 0;
    height: 0;
    border-left: 12px Solid transparent;
    border-right: 12px Solid transparent;
    border-top: 12px Solid rgba(255,255,255,0.2);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .download-buttons {
        grid-template-columns: 1fr;
    }
    
    .download-content h2 {
        font-size: 2rem;
    }
    
    .qr-tooltip {
        width: 280px;
        left: 0;
        right: 0;
        margin: 0 auto;
        transform: none;
    }
    
    .download-btn:hover .qr-tooltip {
        transform: translateY(-10px);
    }
}

@media (max-width: 480px) {
    .download-section {
        padding: 40px 20px;
    }
}