/* 子菜单基础样式（桌面端） */
.nav-list .submenu {
    position: absolute;
    top: 100%;
    left: 0;
    width: 123px;
    background-color: #fff;
    border: 1px solid #eee;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    display: none;  /*默认隐藏 */
    z-index: 999;
}

.nav-list .submenu .submenu-close {display:none;}

.nav-list .submenu li a {
    display: flex;
    justify-content: center;
    color: #333;
    text-decoration: none;
    transition: background-color 0.3s;
    padding: 0px 10px;
    width: 123px;       /* 强制宽度=父元素li的宽度 */
    box-sizing: border-box; /* 关键：让 padding/border 包含在宽度内 */
    border: none;
}

.nav-list .submenu li a:hover {
    background-color: #a3dafe;
}

.nav-list .submenu li:after {
    content: none;
}

/* 清除浮动 */
.nav-list::after {
    content: "";
    display: block;
    clear: both;
}

/* 移动端适配 - 90%尺寸居中弹窗 + 棋子块网格布局 (768px以下屏幕) */
@media (max-width: 768px) {
    /* 90%尺寸居中弹窗容器 */
    .nav-list .submenu {
        position: fixed;  /* 固定定位 */
        top: 50%;         /* 垂直居中第一步 */
        left: 50%;        /* 水平居中第一步 */
        transform: translate(-50%, -50%); /* 居中核心：反向偏移50% */
        width: 90vw;      /* 视口宽度90% */
        max-width: 500px; /* 最大宽度限制 */
        height: 60vh;     /* 视口高度90% */
        max-height: 500px;/* 最大高度限制 */
        background-color: #fff;
        border: 1px solid #eee;
        border-radius: 8px; /* 圆角优化 */
        box-shadow: 0 4px 20px rgba(0,0,0,0.15); /* 增强阴影 */
        display: none;
        padding: 40px 20px 20px; /* 顶部预留关闭按钮空间 */
        box-sizing: border-box;
        overflow-y: auto; /* 内容超出可滚动 */
        z-index: 9999;    /* 提高层级确保覆盖其他内容 */
        /* 淡入+缩放动画 */
        opacity: 0;
        transition: opacity 0.3s ease, transform 0.3s ease;
        transform: translate(-50%, -50%) scale(0.95); /* 初始缩放动画 */
    }
    .nav-list .submenu .submenu-close {display:block;}
    /* 弹窗显示状态 */
    .nav-list .submenu.active {
        display: block; /* 改为block，内部用grid布局 */
        opacity: 1;
        transform: translate(-50%, -50%) scale(1); /* 显示时恢复正常大小 */
    }

    

    /* 棋子块样式 */
    .nav-list .submenu li {
        width: 30%;
        margin: 5px;
        border: none; /* 去掉原底部边框 */
        background-color: #cdeafd; /* 棋子块背景色 */
        border: 1px dashed #a2d5ee; /* 半透明黑色虚线框 */
        border-radius: 6px; !important; /* 棋子块圆角 */
        transition: all 0.3s ease; /*  hover过渡 */
        cursor: pointer;
          box-sizing: border-box; /* 防止宽高变化影响圆角 */
          text-align: center;
          outline: none; /* 清除默认焦点外边框 */
          -webkit-tap-highlight-color: transparent; /* 移动端点击高亮透明 */
          position: relative; /* 防止z-index导致的层级问题 */
    }

    /* 棋子块hover效果 */
    .nav-list .submenu li:hover {
        background-color: #a3dafe;
        transform: translateY(-2px); /* 轻微上浮 */
        box-shadow: 0 3px 8px rgba(0,0,0,0.1);
    }

    /* 棋子块内链接样式 */
    .nav-list .submenu li a {
        width: 100% !important;
        padding: 18px 8px !important;
        justify-content: center !important;
        align-items: center !important;
        font-size: 16px !important;
        color: #333 !important;
        text-align: center !important;
        height: 100% !important;
        box-sizing: border-box !important;
        display: flex !important; /* 强制flex布局 */
        text-decoration: none !important;
        /* 保留链接的可点击性，不添加pointer-events: none */
    }




/* 修改CSS，确保按钮内容可见 */
.submenu-close {
    /* 保持原有样式 */
    position: absolute !important;
    top: 5px !important;
    right: 5px !important;
    width: 40px !important;
    height: 40px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    background-color: transparent !important;
    border: none !important;
    font-size: 24px !important;
    cursor: pointer !important;
    z-index: 10000 !important;
    transition: color 0.3s ease !important;
}

/* 使用实际内容替代伪元素 */
.submenu-close .close-text {
    display: block;
    font-size: 30px;
    line-height: 1;
    color: #666;
    transition: color 0.3s ease;
}

.submenu-close:hover .close-text {
    color: #ff4200;
}



    /* 弹窗遮罩层 */
    .submenu-mask {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        width: 100vw !important;
        height: 100vh !important;
        background-color: rgba(0,0,0,0.5) !important;
        z-index: 9998 !important;
        display: none !important;
        opacity: 0 !important;
        transition: opacity 0.3s ease !important;
    }

    .submenu-mask.active {
        display: block !important;
        opacity: 1 !important;
    }
}

/* 移除移动端菜单元素的焦点高亮 */
@media (max-width: 768px) {
    .submenu,
    .submenu * {
        outline: none !important;
        -webkit-tap-highlight-color: transparent !important; /* 移除移动端点击高亮 */
    }
    .submenu-close {
        outline: none !important;
    }
}