.archive-bicycles {
    font-family: Arial, sans-serif;
    padding: 20px;
}

.bicycle-search-form {
    margin-bottom: 20px;
    text-align: center;
}

.bicycle-search-form input[type="text"] {
    width: 300px;
    padding: 10px;
    font-size: 1em;
    border: 1px solid #ddd;
    border-radius: 5px;
    margin-right: 10px;
}

.bicycle-search-form button {
    padding: 10px 15px;
    font-size: 1em;
    border: none;
    border-radius: 5px;
    background-color: #0073aa;
    color: white;
    cursor: pointer;
}

.bicycle-search-form button:hover {
    background-color: #005f8d;
}

.bicycles-container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: flex-start;
}

.bicycle-item {
    border: 1px solid #ddd;
    padding: 15px;
	margin-bottom: 15px;
    border-radius: 5px;
    flex: 1 1 calc(25% - 20px); /* PC時は4つ並び */
    box-sizing: border-box;
    background-color: #f9f9f9;
    text-align: center;
}

.bicycle-thumbnail img {
    max-width: 100%;
    border-radius: 5px;
}

.bicycle-title {
    font-size: 1.2em;
    margin-top: 10px;
    color: #333;
}

.bicycle-item a {
    text-decoration: none;
}

.pagination {
    margin-top: 20px;
    text-align: center;
}

.pagination a {
    margin: 0 5px;
    text-decoration: none;
    color: #0073aa;
}

.pagination a:hover {
    text-decoration: underline;
}

@media (max-width: 1024px) {
    .bicycle-item {
        flex: 1 1 calc(33.333% - 20px); /* タブレットでは3つ並び */
    }
}

@media (max-width: 768px) {
    .bicycle-item {
        flex: 1 1 calc(50% - 20px); /* スマホでは2つ並び */
    }
}

@media (max-width: 480px) {
    .bicycle-item {
        flex: 1 1 100%; /* 小さい画面では1つ表示 */
    }
}