/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    color: #333;
}

/* 容器样式 */
.container {
    background-color: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 500px;
    width: 100%;
    backdrop-filter: blur(10px);
    position: relative;
}

/* 应用信息样式 */
.app-info {
    margin-bottom: 30px;
}

.app-icon {
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
    border-radius: 25px;
    background: linear-gradient(135deg, #0062cc 0%, #0056b3 100%);
    box-shadow: 0 8px 25px rgba(0, 123, 255, 0.4);
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
    border: 3px solid rgba(255, 255, 255, 0.8);
}
.app-icon img {
    width: 100%;
    object-fit: cover;
}

/* .app-icon-inner {
    position: relative;
    width: 80%;
    height: 80%;
    background: linear-gradient(135deg, #ffffff 0%, #e9ecef 100%);
    border-radius: 18px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: bold;
    font-size: 24px;
    color: #0056b3;
} */

/* .app-icon-inner::before {
    content: 'ak';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
} */

/* .app-icon-inner::after {
    content: '$$';
    position: absolute;
    bottom: 12px;
    right: 12px;
    font-size: 16px;
    color: #28a745;
    font-weight: bold;
} */

.app-name {
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 10px;
    color: #0056b3;
}

.app-description {
    font-size: 16px;
    color: #666;
    line-height: 1.5;
    margin-bottom: 20px;
}

/* 功能特点样式 */
.features {
    display: flex;
    justify-content: space-around;
    margin-bottom: 30px;
}

.feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: #f8f9fa;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.feature-icon-inner {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: bold;
    font-size: 20px;
    color: #28a745;
    position: relative;
}

.feature-icon-inner::before {
    content: '✓';
    position: absolute;
}

.feature-text {
    font-size: 14px;
    color: #333;
    font-weight: 500;
}

/* 下载按钮样式 */
.download-button {
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    color: white;
    border: none;
    border-radius: 30px;
    padding: 20px;
    width: 100%;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.download-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 123, 255, 0.5);
    background: linear-gradient(135deg, #004085 0%, #0056b3 100%);
}

.download-button:active {
    transform: translateY(0);
}

.download-size {
    font-size: 14px;
    opacity: 0.9;
}

/* 下载提示 */
.download-tip {
    text-align: center;
    margin-top: 15px;
    font-size: 14px;
    color: #999;
}

.download-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: all 0.6s ease;
}

.download-button:hover::before {
    left: 100%;
}

/* 安全认证标识 */
.security-badge {
    display: flex;
    justify-content: center;
    margin-top: 20px;
    gap: 15px;
    flex-wrap: wrap;
}

.badge {
    display: flex;
    align-items: center;
    background-color: rgba(255, 255, 255, 0.8);
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 12px;
    color: #0056b3;
    font-weight: 500;
    backdrop-filter: blur(5px);
}

.badge-icon {
    width: 16px;
    height: 16px;
    margin-right: 5px;
    color: #28a745;
}

/* 语言切换按钮 */
.language-selector {
    position: absolute;
    top: 5px;
    right: 10px;
    display: flex;
    gap: 10px;
    z-index: 1;
}

.lang-btn {
    padding: 8px 12px;
    background-color: rgba(255, 255, 255, 0.8);
    border: 1px solid #ddd;
    border-radius: 20px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.lang-btn:hover {
    background-color: #fff;
    border-color: #4facfe;
    transform: translateY(-1px);
}

.lang-btn.active {
    background-color: #4facfe;
    color: white;
    border-color: #4facfe;
}

/* 响应式设计 */
@media (max-width: 480px) {
    .container {
        margin-top: 25px;
        padding: 15px;
    }

    .app-icon {
        width: 100px;
        height: 100px;
    }

    .app-name {
        font-size: 24px;
    }

    .download-button {
        padding: 16px;
        font-size: 16px;
    }
}

/* 添加动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.container {
    animation: fadeIn 0.6s ease-out;
}