body{
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    margin: 0 auto;
    padding: 0;
    font-family: "-apple-system","PingFang TC","Microsoft JhengHei","Source Sans Pro", Helvetica, sans-serif;
    font-size: 16px;
    min-height: 100vh;
}
.container{
    max-width: 750px;
    text-align: center;
    margin: 20px auto 0;
    padding: 40px 20px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    animation: fadeInUp 0.8s ease-out;
}
.logo{
    padding: 20px;
    animation: bounce 2s infinite;
}
.logo img{
    width: 100px;
    height: 100px;
    border-radius: 50%;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.logo img:hover {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.4);
}
.app_name{
    font-weight: bold;
    font-size: 32px;
    color: #ffffff;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    margin-bottom: 10px;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.subtitle{
    margin-top: 15px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 18px;
    animation: fadeIn 1s ease-out 0.3s both;
}

.subtitle2{
    margin-top: 8px;
    color: rgba(255, 255, 255, 0.8);
    animation: fadeIn 1s ease-out 0.5s both;
}

.button.rounded {
    border-radius: 9999px;
}

.download_container .button {
    height: 60px;
    display: block;
    border: none;
    color: #ffffff;
    font-size: 16px;
    max-width: 500px;
    margin: 0 auto 25px;
    line-height: 60px;
    font-weight: bold;
    border-radius: 50px;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.download_container .button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.download_container .button:hover::before {
    left: 100%;
}

.download_container .button:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.4);
}

.download_container .button:active {
    transform: translateY(-1px);
}

.download_container{
    margin-top: 50px;
    animation: fadeIn 1s ease-out 0.7s both;
}
a {
    text-decoration: none;
    -webkit-tap-highlight-color:rgba(0,0,0,0);
    -webkit-tap-highlight-color: transparent;
    outline:none;
    background: none;
    text-decoration: none;
}

a:hover,a:active,a:visited,a:link,a:focus{
    -webkit-tap-highlight-color:rgba(0,0,0,0);
    -webkit-tap-highlight-color: transparent;
    outline:none;
    background: none;
    text-decoration: none;
}

a:hover{

}

.button img{
    width: 22px;
    margin-right: 12px;
    margin-bottom: 5px;
    vertical-align:middle;
    transition: all 0.3s ease;
    filter: brightness(0) invert(1);
}

.download_container .button:hover img {
    transform: scale(1.2) rotate(10deg);
    filter: brightness(1.2) invert(0);
}

.problems{
    max-width: 500px;
    color: rgba(255, 255, 255, 0.9);
    text-align: left;
    margin: 50px auto 0;
    animation: fadeIn 1s ease-out 0.9s both;
}
.problems_title{
    text-align: center;
    font-size: 24px;
    font-weight: bold;
    color: #ffffff;
    margin-bottom: 30px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.problems_subtitle{
    margin-top: 25px;
    font-weight: bold;
    font-size: 18px;
    color: #ffffff;
    padding-left: 15px;
    border-left: 4px solid #4ecdc4;
    background: rgba(78, 205, 196, 0.1);
    padding: 10px 15px;
    border-radius: 0 8px 8px 0;
}
li{
    line-height: 28px;
    margin-bottom: 8px;
    padding: 8px 15px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

li:hover {
    background: rgba(255, 255, 255, 0.1);
    border-left: 3px solid #ff6b6b;
    transform: translateX(5px);
}
.ios_password{
    font-weight: bold;
    font-size: 28px;
    color: #FF862C;
    text-shadow: 0 2px 8px rgba(255, 134, 44, 0.4);
    animation: pulse 2s infinite;
    padding: 10px 20px;
    background: rgba(255, 134, 44, 0.1);
    border-radius: 10px;
    border: 2px solid rgba(255, 134, 44, 0.3);
}
.footer{
    margin-top: 40px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 25px;
    font-size: 14px;
    animation: fadeIn 1s ease-out 1s both;
}

/* 动画关键帧 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        margin: 10px;
        padding: 30px 15px;
    }
    
    .app_name {
        font-size: 28px;
    }
    
    .download_container .button {
        height: 55px;
        line-height: 55px;
        font-size: 15px;
    }
}