/* 极简风格重置 */
:root {
    --bg-color: #fcfcfc;
    --text-color: #333333;
    --text-muted: #888888;
    --card-bg: #ffffff;
    --border-color: #eaeaea;
    --hover-border: #cccccc;
    --accent-color: #000000;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 2rem;
}

.container {
    max-width: 800px;
    width: 100%;
}

header {
    margin-bottom: 3rem;
    text-align: center;
}

h1 {
    font-size: 2.5rem;
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
}

.subtitle {
    color: var(--text-muted);
    font-size: 1rem;
    letter-spacing: 1px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 4rem;
}

.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.card h2 {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.card:hover {
    border-color: var(--hover-border);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
}

footer {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

@media (max-width: 600px) {
    .grid {
        grid-template-columns: 1fr;
    }
}