:root {
    --white: #ffffff;
    --grey1: #e4ebf5;
    --grey2: #c8d0e7;
    --accent: darkorange;
    --shadow: 0.3rem 0.3rem 0.6rem var(--grey2),
             -0.2rem -0.2rem 0.5rem var(--white);
}

/* 基础样式 */
body {
    background: var(--grey1);
    font-family: "PingFang SC", "Helvetica Neue", sans-serif;
    color: #666;
    user-select: none;
}

/* Neumorphic 组件 */
.neumorph-card {
    background: var(--grey1);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    cursor: pointer;
}

.neumorph-btn {
    background: var(--grey1);
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 0.8rem;
    box-shadow: var(--shadow);
    transition: all 0.2s ease;
}

/* 图标字体 */
@font-face {
    font-family: 'iconfont';
    src: url('../fonts/iconfont.woff2') format('woff2'),
         url('../fonts/iconfont.woff') format('woff');
}

.iconfont {
    font-family: "iconfont" !important;
    font-size: 1.2em;
    vertical-align: middle;
}

/* 响应式布局 */
@media (max-width: 768px) {
    .card-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .dmtop {
        bottom: 1rem;
        right: 1rem;
    }
}
/* static/css/main.css */
.card-link {
    display: block;
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s ease;
}

.card-link:hover {
    transform: translateY(-3px);
}

.neumorph-card {
    /* 保持原有样式 */
    position: relative; /* 确保z-index生效 */
    z-index: 1;
}

.card-link:hover .neumorph-card {
    box-shadow: 0.6rem 0.6rem 1.2rem var(--grey2),
               -0.5rem -0.5rem 1rem var(--white);
}

/* 粘性页脚布局 */
.site-container {
    display: flex;
    min-height: 100vh;
    flex-direction: column;
}

.site-content {
    flex: 1; /* 撑满剩余空间 */
}
/* 新增定位规则 */
.site-footer {
    position: sticky;
    bottom: 0;
    z-index: 100;
    background: #f8f9fa;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
}