* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
    background-color: #1a1a1a;
    color: #fff;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
}

.ww-msg {
    background-color: #292929;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    max-width: 400px;
    width: 100%;
    text-align: center;
}

.ww-msg__icon {
    padding: 24px 0 8px;
    font-size: 48px;
    color: #33ccff;
    line-height: 1;
}

.ww-msg__title {
    font-size: 22px;
    color: #33ccff;
    margin-bottom: 10px;
    font-weight: bold;
}

.ww-msg__desc {
    font-size: 16px;
    color: #99aabb;
    margin-bottom: 16px;
}

.update-date {
    font-size: 14px;
    color: #99aabb;
    margin-bottom: 16px;
}

.ww-btn {
    display: block;
    width: calc(100% - 40px);
    margin: 10px 20px;
    padding: 12px;
    text-decoration: none;
    font-size: 16px;
    border-radius: 5px;
    color: #fff;
    background-color: #4caf50;
    transition: background-color 0.2s, transform 0.2s;
}

.ww-btn:hover {
    background-color: #43a047;
    transform: translateY(-1px);
}

.ww-footer {
    font-size: 14px;
    color: #99aabb;
    padding: 16px 10px 20px;
}

@media only screen and (max-width: 600px) {
    .ww-msg {
        max-width: 100%;
    }
}