body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f2f2f2;
    color: #111;
}

#header {
    background: #444;
    color: #fff;
    text-align: center;
    padding: 14px 10px;
}

#header h1 {
    margin: 0;
    font-size: 26px
}

#header p {
    margin: 6px 0 0 0;
    font-size: 14px;
    color: #e7e7e7
}

#nav {
    background: #e5e7eb;
    border-top: 4px solid #7cb342;
    border-bottom: 4px solid #7cb342;
}

.menu {
    list-style: none;
    margin: 0;
    padding: 0 12px;
    display: flex;
    gap: 24px;
}

.menu>li {
    position: relative
}

.menu a {
    display: block;
    padding: 10px 6px;
    text-decoration: none;
    color: #111;
    font-weight: bold;
}

/* submenu */
.submenu {
    list-style: none;
    margin: 0;
    padding: 6px 0;
    position: absolute;
    left: 0;
    top: 100%;
    min-width: 160px;
    background: #333;
    display: none;
    border: 1px solid #999;
}

.submenu li a {
    color: #fff;
    padding: 8px 10px;
    font-weight: normal;
}

.has-sub:hover .submenu {
    display: block
}

.wrap {
    max-width: 1080px;
    margin: 16px auto;
    padding: 0 8px 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.card {
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    width: 240px;
    padding: 10px;
    text-align: left;
}

.card img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border: 1px solid #ddd;
    border-radius: 6px;
}

.card h3 {
    margin: 8px 0 6px 0;
    font-size: 16px;
}

.card p {
    margin: 0 0 10px 0;
    color: #444;
}

.btn {
    display: inline-block;
    background: #2e7d32;
    color: #fff;
    text-decoration: none;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 14px;
}