* {
margin: 0;
padding: 0;
box-sizing: border-box;
}

body {
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
background: #f6f8fa;
color: #24292f;
line-height: 1.6;
}

.wrap {
max-width: 960px;
margin: 0 auto;
padding: 60px 20px;
}

.header {
text-align: center;
margin-bottom: 50px;
}

.header h1 {
font-size: 32px;
font-weight: 600;
margin-bottom: 8px;
color: #1a1e24;
}

.header p {
font-size: 15px;
color: #656d76;
}

.main {
display: flex;
justify-content: center;
}

.card-box {
display: grid;
grid-template-columns: repeat(2, 1fr);
gap: 20px;
width: 100%;
max-width: 700px;
}

.card {
display: block;
background: #fff;
border-radius: 12px;
padding: 24px;
text-decoration: none;
color: inherit;
border: 1px solid #d1d9e0;
transition: all 0.2s ease;
box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.card:hover {
transform: translateY(-3px);
box-shadow: 0 8px 20px rgba(0,0,0,0.08);
border-color: #b3b3b3;
background-color: #fcfcfc;
}

.card-title {
font-size: 17px;
font-weight: 600;
margin-bottom: 6px;
color: #24292f;
}

.card-desc {
font-size: 13px;
color: #656d76;
}

.footer {
text-align: center;
margin-top: 60px;
font-size: 13px;
color: #656d76;
}

.footer a {
color: #656d76;
text-decoration: none;
margin: 0 4px;
}

.footer a:hover {
color: #0969da;
text-decoration: underline;
}