/* .表示一个类  */

.dj-game-settings {
    width: 100%;
    height: 100%;
    background-image: url("/static/image/menu/background.jpg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    user-select: none;
    position: relative;
    overflow: hidden;
}

/* 背景遮罩增强可读性 */
.dj-game-settings::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.2);
    z-index: 1;
}

/* 登录和注册面板共用样式 */
.dj-game-settings-login,
.dj-game-settings-register {
    width: 20vw;
    min-width: 300px;
    position: relative;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: 12px;
    z-index: 2;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    padding: 0 1.5vw;
}

/* 登录面板高度 */
.dj-game-settings-login {
    height: 41vh;
    min-height: 340px;
}

/* 注册面板高度 */
.dj-game-settings-register {
    height: 49vh;
    min-height: 400px;
}

/* 面板悬停效果 */
.dj-game-settings-login:hover,
.dj-game-settings-register:hover {
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.55);
    transform: translate(-50%, -50%) scale(1.01);
}

/* 标题样式 */
.dj-game-settings-title {
    color: white;
    font-size: 3vh;
    text-align: center;
    padding-top: 2vh;
    margin-bottom: 2vh;
    font-weight: 600;
    letter-spacing: 0.5px;
    position: relative;
}

.dj-game-settings-title::after {
    content: "";
    display: block;
    width: 60%;
    height: 2px;
    background: linear-gradient(90deg, transparent, #4CAF50, transparent);
    margin: 1vh auto 0;
}

/* 表单项目容器 */
.dj-game-settings-username,
.dj-game-settings-password,
.dj-game-settings-submit,
.dj-game-settings-acwing {
    display: block;
    height: 7vh;
    margin-bottom: 0.5vh;
    position: relative;
}

/* 输入项基础样式 */
.dj-game-settings-item {
    width: 100%;
    height: 100%;
}

/* 输入框样式优化 */
.dj-game-settings-item > input {
    width: 90%;
    line-height: 3.5vh;
    position: relative;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 0.8vh 1vw;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1.8vh;
    transition: all 0.3s ease;
}

.dj-game-settings-item > input:focus {
    outline: none;
    border-color: #4CAF50;
    background-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.2);
}

.dj-game-settings-item > input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

/* 按钮样式优化 */
.dj-game-settings-item > button {
    color: white;
    width: 90%;
    line-height: 3.5vh;
    position: relative;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #4CAF50;;
    border-radius: 6px;
    border: none;
    padding: 0.8vh 0;
    font-size: 1.8vh;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.dj-game-settings-item > button:hover {
    background-color: #45a049;
    transform: translate(-50%, -50%) scale(1.1);
    box-shadow: 0 4px 12px rgba(76, 175, 80, 0.3);
}

.dj-game-settings-item > button:active {
    transform: translate(-50%, -50%) scale(0.98);
}

/* 错误信息样式 */
.dj-game-settings-error-messages {
    /* 基础红色 */
    color: #ff3838;
    /* 加粗字体实现高亮效果 */
    font-weight: 600;
    /* 稍大字体尺寸增强可见性 */
    font-size: 1.6vh;
    /* 保持原有布局位置 */
    display: inline;
    float: left;
    padding-left: 5%;
    margin-top: -0.5vh;
    min-height: 2.2vh;
    line-height: 2.2vh;
    /* 添加轻微阴影增强高亮感 */
    text-shadow: 0 0 2px rgba(255, 56, 56, 0.3);
    /* 错误出现时的淡入动画 */
    animation: fadeIn 0.3s ease;
}
/* 淡入动画增强感知 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateX(-5px); }
    to { opacity: 1; transform: translateX(0); }
}

/* 选项链接样式 */
.dj-game-settings-option {
    color: #81c784;
    font-size: 1.8vh;
    display: inline;
    float: right;
    padding-right: 5%;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}

.dj-game-settings-option:hover {
    color: #a5d6a7;
    text-decoration: underline;
}

/* AcWing登录区域 */
.dj-game-settings-acwing > img {
    position: relative;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    cursor: pointer;
    display: block;
    transition: all 0.3s ease;
}

.dj-game-settings-acwing > img:hover {
    transform: translate(-50%, -50%) scale(1.05);
}

.dj-game-settings-acwing > div {
    color: white;
    font-size: 1.5vh;
    top :50%;
    text-align: center;
    display: block;
    margin-top: -1vh;
    opacity: 0.8;
}

/* 响应式设计调整 */
@media (max-width: 768px) {
    .dj-game-settings-login,
    .dj-game-settings-register {
        width: 85vw;
        padding: 0 4vw;
    }

    .dj-game-settings-item > input,
    .dj-game-settings-item > button {
        width: 95%;
    }

    /* 响应式调整 */
    .dj-game-settings-error-message {
        font-size: 1.8vh;
        padding-left: 2.5%;
    }

    .dj-game-settings-option {
        padding-right: 2.5%;
    }
}






.dj-game-menu{
    width:100%;
    height:100%;
    /*background-image:url("https://p0.ssl.img.360kuai.com/dmfd/__60/t01b09e20daadb14f30.gif");*/
    background-image:url("https://ts1.tc.mm.bing.net/th/id/R-C.2e7ad7f7a2ad25a9c119a458648e2478?rik=KW%2btcROH0RSDyA&riu=http%3a%2f%2fimg.52desk.com%2ftp%2f234158qiZgJ.jpg&ehk=wyMSPQrSeLGA%2fJiOtPqbJthW8OToTSjCReXk4I83TeY%3d&risl=&pid=ImgRaw&r=0");
    /*background-image:url("/game/static/image/menu/background.gif");*/
    background-size:100% 100%;
    user-select:none;
}

.dj-game-menu-field {       /*主菜单*/
    width: 20vw;
    position: relative;
    top: 40%;
    left: 20%;
}
/*
.dj-game-menu-field-item {
    color: white;
    height: 8vh;
    width: 18vw;
    font-size: 4vh;
    font-style: italic;
    text-align: center;
    background-color: rgba(39,21,28, 0.5);
    border-radius: 10px;
    letter-spacing: 0.5vw;
    cursor: pointer;
}
*/
.dj-game-menu-field-item {
    color: white;
    height: 6vh;
    width: 18vw;
    font-size: 4vh;
    font-style: italic;
    text-align: center;
    background-color: rgba(39, 21, 28, 0.6);
    border-radius: 10px;
    letter-spacing: 0.5vw;
    cursor: pointer;
    transition: all 0.3s ease;
    text-shadow: 0 0 5px rgba(255, 255, 255, 0.3);
    user-select: none;
    display: flex;
    align-items: center;
    justify-content: center;
    /* 关键：为伪元素提供定位上下文 */
    position: relative;
    /* 预留边框空间 */
    padding: 2px;
    overflow: hidden;
}

/* 旋转边框光效容器 */
.dj-game-menu-field-item::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 12px; /* 比主边框略大，避免被覆盖 */
    padding: 2px;
    background: linear-gradient(
        45deg, 
        rgba(255, 0, 255, 0.8), 
        rgba(0, 255, 255, 0.8), 
        rgba(255, 255, 0, 0.8), 
        rgba(255, 0, 255, 0.8)
    );
    background-size: 300% 300%;
    /* 使用mask隔离中间区域，只显示边框 */
    -webkit-mask: 
        linear-gradient(#fff 0 0) content-box, 
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0; /* 初始隐藏 */
    transition: opacity 0.3s ease;
}

/* 旋转动画 */
.dj-game-menu-field-item:hover::before {
    opacity: 1; /* 显示边框 */
    animation: rotate 3s linear infinite; /* 3秒一圈，无限循环 */
}

/* 定义旋转动画 */
@keyframes rotate {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* 鼠标悬停主效果 */
.dj-game-menu-field-item:hover {
    background-color: rgba(39, 21, 28, 0.85);
    transform: scale(1.05);
    font-size: 4.2vh;
    text-shadow: 0 0 10px rgba(255, 200, 220, 0.8);
    letter-spacing: 0.6vw;
}

/* 点击反馈 */
.dj-game-menu-field-item:active {
    transform: scale(0.98);
}



.dj-game-menu-field-item:hover {
    transform: scale(1.2);
    transition: 100ms;
}

.dj-game-playground {
    width: 100%;
    height: 100%;
    user-select: none;
    background-color: grey;
}
.dj-game-playground > canvas{
    position : relative;
    top : 50%;
    left : 50%;
    transform : translate(-50%,-50%);
}