/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 根变量统一全局配色、字体 */
:root {
    --primary-color: #1677ff;
    --text-color: #333;
    --text-gray: #666;
    --bg-color: #ffffff;
    --bg-image: url("../images/test.png");
    --white-color: #f9f9f9;
    --border-color: #eee;
    --cannotsee: #eeeeee00;
    --test-color: #ff0000;

}


body {
    font-family: "Microsoft Yahei", Helvetica, Arial, sans-serif;
    font-size: 14px;
    color: var(--text-color);
    background-color: var(--bg-color);
    background-image: url("../images/.png");
    background-blend-mode: lighten;
    background-size: cover;
    line-height: 1.6;
}

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

/* 通用容器 */
.container {
    width: 100%;
    height: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 头部样式 */
.header {
    background-color: var(--white-color);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    padding: 0.5rem 0;
}

.header .logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-group {
    display: flex;
    gap: 16px;
}

/* 主体内容区 */
.main {
    min-height: calc(100vh - 260px);
    padding: 40px 0;
}

a {
    text-decoration-color: #000000;
    text-decoration-thickness: 2px;
    text-decoration: none;
}

.card {
    width: 300px;  /* 固定宽度 */
    height: 160px; /* 固定高度 */
    overflow: hidden; /* 超出隐藏 */
    background: var(--white-color);
    border-radius: 0px;
    padding: 30px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.06);
}
.card:hover {
            box-shadow: 0 10px 10px rgba(0, 0, 0, 0.1), 0 10px 10px rgba(0,0,0,0.02);
        }

.card h2 {
    color: var(--text-color);
    margin-bottom: 20px;
    font-size: 20px;
}

.card p {
    color: var(--text-gray);
    margin-bottom: 15px;
    font-size: 15px;
}

.card-heng {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: space-between;
}

.card-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
}



.block {
    /* 占位尺寸，按需修改 */
    width: 100%;
    height: 420px;
    /* 完全透明 */
    background: transparent;
    /* 无边框无阴影 */
    box-shadow: none;
    border: none;
}

.button {
    display: flex;
    padding: 10px 26px;
    background: var(--white-color);
    color: #000000;
    justify-content: center;
    align-items: center;
    text-align: center;
    border-radius: 6px;
    text-decoration: none;
    font-size: 14px;
    transition: 0.2s;
}
.button:hover {
    opacity: 0.8;
}

/* 底部样式 */
.footer {
    background-color: var(--white-color);
    border-top: 1px solid var(--border-color);
    padding: 0 0;
    text-align: center;
    color: var(--text-gray);
    font-size: 13px;
}


/* 响应式适配（手机端） */
@media (max-width: 768px) {
    .main {
        padding: 20px 0;
    }
    .card {
        padding: 20px;
    }
}