/* APP下载页面样式 */
.youquanyi-app-class {
    width: 100%;
    padding: 60px 0;
    position: relative;
    overflow: hidden;
}

/* 背景动画效果 */
.youquanyi-app-class::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

/* 容器样式 */
.youquanyi-app-class .app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

/* 头部样式 */
.youquanyi-app-class .app-header {
    text-align: center;
    margin-bottom: 60px;
    opacity: 0;
    animation: yqyFadeInDown 1s ease-out forwards;
}

.youquanyi-app-class .app-header h1 {
    font-size: 36px;
    color: #333;
    margin-bottom: 15px;
    font-weight: 600;
    position: relative;
    display: inline-block;
}

.youquanyi-app-class .app-header h1::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: #00a1c5;
    animation: yqyLineGrow 1s ease-out forwards;
    animation-delay: 0.5s;
}

.youquanyi-app-class .app-subtitle {
    font-size: 18px;
    color: #666;
    line-height: 1.6;
    opacity: 0;
    animation: yqyFadeIn 1s ease-out forwards;
    animation-delay: 0.8s;
    margin-top: 15px;
}

/* 二维码容器 */
.youquanyi-app-class .app-qrcode-container {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 60px;
}

/* 二维码卡片 */
.youquanyi-app-class .qrcode-card {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    width: 280px;
    text-align: center;
    position: relative;
    overflow: hidden;
    opacity: 0;
    animation: yqyCardAppear 0.8s ease-out forwards;
}

.youquanyi-app-class .qrcode-card:nth-child(1) {
    animation-delay: 0.3s;
}

.youquanyi-app-class .qrcode-card:nth-child(2) {
    animation-delay: 0.6s;
}

.youquanyi-app-class .qrcode-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s;
}

.youquanyi-app-class .qrcode-card:hover::before {
    transform: translateX(100%);
}

.youquanyi-app-class .qrcode-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

/* 二维码包装器 */
.youquanyi-app-class .qrcode-wrapper {
    margin-bottom: 20px;
    position: relative;
}

.youquanyi-app-class .qrcode-wrapper::after {
    content: '';
    position: absolute;
    top: -5px;
    left: 60px;
    right: 60px;
    bottom: -5px;
    border: 2px solid #009688;
    border-radius: 10px;
    opacity: 0;
    transition: all 0.3s ease;
}

.youquanyi-app-class .qrcode-card:hover .qrcode-wrapper::after {
    opacity: 1;
    transform: scale(1.05);
}

/* 二维码信息 */
.youquanyi-app-class .qrcode-info h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 10px;
    position: relative;
    display: inline-block;
}

.youquanyi-app-class .qrcode-info h3::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 2px;
    background: #009688;
    transition: width 0.3s ease;
}

.youquanyi-app-class .qrcode-card:hover .qrcode-info h3::after {
    width: 100%;
}

.youquanyi-app-class .qrcode-info p {
    color: #666;
    margin-bottom: 20px;
    font-size: 14px;
}

/* 下载按钮 */
.youquanyi-app-class .download-btn {
    display: inline-block;
    background: #0995fd;
    color: #fff;
    padding: 10px 25px;
    border-radius: 25px;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.youquanyi-app-class .download-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, #0995fd, #00d8ff);
    z-index: -1;
    transition: transform 0.3s ease;
    transform: scaleX(0);
    transform-origin: right;
}

.youquanyi-app-class .download-btn:hover::before {
    transform: scaleX(1);
    transform-origin: left;
}

.youquanyi-app-class .download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgb(0 175 215 / 30%);
}

/* 特性区域 */
.youquanyi-app-class .app-features {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 60px;
}

.youquanyi-app-class .feature-item {
    text-align: center;
    flex: 1;
    max-width: 300px;
    padding: 30px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 16px;
    transition: all 0.3s ease;
    opacity: 0;
    animation: yqyFeatureAppear 0.8s ease-out forwards;
}

.youquanyi-app-class .feature-item:nth-child(1) {
    animation-delay: 0.9s;
}

.youquanyi-app-class .feature-item:nth-child(2) {
    animation-delay: 1.2s;
}

.youquanyi-app-class .feature-item:nth-child(3) {
    animation-delay: 1.5s;
}

.youquanyi-app-class .feature-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.youquanyi-app-class .feature-item i {
    font-size: 36px;
    color: #0995fd;
    margin-bottom: 20px;
    transition: all 0.3s ease;
    display: inline-block;
}

.youquanyi-app-class .feature-item:hover i {
    transform: scale(1.2) rotate(10deg);
    color: #00796b;
}

.youquanyi-app-class .feature-item h4 {
    font-size: 18px;
    color: #333;
    margin-bottom: 10px;
}

.youquanyi-app-class .feature-item p {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
}

/* 动画关键帧 */
@keyframes yqyBackgroundShift {
    0% {
        background-position: 0% 0%;
        opacity: 0.5;
    }
    100% {
        background-position: 100% 100%;
        opacity: 1;
    }
}

@keyframes yqyFadeInDown {
    0% {
        opacity: 0;
        transform: translateY(-30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes yqyLineGrow {
    0% {
        width: 0;
        opacity: 0;
    }
    100% {
        width: 100px;
        opacity: 1;
    }
}

@keyframes yqyFadeIn {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}

@keyframes yqyCardAppear {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes yqyFeatureAppear {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}