h1 {
    margin-bottom: 15px;
}

.domain-list {
    list-style: none;
    padding: 0;
    width: 100%;
}

.domain-item {
    display: grid;
    grid-template-columns: 1fr 1fr auto;
    gap: 10px;
    align-items: center;
    background-color: #f0f0f0;
    border-radius: 8px;
    margin: 10px 0;
    padding: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.domain-item button {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
    margin-bottom: 0;
}

.domain-item button:hover {
    background-color: #0056b3;
}

.speed-high {
    color: red;
}

.speed-low {
    color: green;
}

.icon {
    margin-right: 10px;
    display: inline-block;
    vertical-align: middle;
    /* 确保图标和文本垂直对齐 */
}
.card {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    padding: 20px;
    margin: 20px 0;
    text-align: center;
}

.card h3 {
    color: #007bff;
    margin-bottom: 10px;
}

.card p {
    color: #333;
    line-height: 1.6;
}